UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

FORM10-Q

(Mark One)

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2019

2020

or

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from __________ to

__________

Commission File Number:001-38295


X4 PHARMACEUTICALS, INC.

(Exact name of registrant as specified in its charter)

Delaware
27-3181608

(State or other jurisdiction of

incorporation or organization)

27-3181608
(I.R.S. Employer

Identification No.)

955 Massachusetts Avenue, 4th Floor

Cambridge, Massachusetts

02139
(Address of principal executive offices)
02139
(Zip Code)

(857)529-8300

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common StockXFORThe Nasdaq CapitalStock Market LLC

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒    No  ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of RegulationS-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, anon-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” inRule 12b-2 of the Exchange Act.

Large accelerated filerAccelerated filer
Non-accelerated filerSmaller reporting company
Non-accelerated filerSmaller reporting company
Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☒

Indicate by check mark whether the registrant is a shell company (as defined in Rule12b-2 of the Exchange Act).    Yes  ☐    No  ☒


As of May 5, 2019,4, 2020, the registrant had 12,420,77816,142,275 shares of common stock outstanding.


X4 Pharmaceuticals, Inc.






EXPLANATORY NOTE3
CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS3

6

Condensed Consolidated Statements of Comprehensive Loss (unaudited) for the Three Months Ended March 31, 2019 2020 and 2018

2019
7

8

9

10

39

53

53

54

54

54

54

54

54

55

57

EXPLANATORY NOTE

On March 13, 2019, X4 Pharmaceuticals, Inc. (formerly Arsanis, Inc), or the Company, completed its business combination in accordance with the terms of the Agreement and Plan of Merger, dated as of November 26, 2018, as amended on December 20, 2018 and March 8, 2019, or the Merger Agreement, by and among the Company, X4 Therapeutics, Inc. (formerly X4 Pharmaceuticals, Inc.) and Artemis AC Corp., a Delaware corporation and a wholly owned subsidiary of the Company, or the Merger Sub, pursuant to which, among other matters, Merger Sub merged with and into X4 Therapeutics, Inc., with X4 Therapeutics, Inc. continuing as a wholly owned subsidiary of the Company and the surviving corporation of the merger, or the Merger. Following the Merger, on March 13, 2019, the Company effected a1-for-6 reverse stock split of its common stock, or the Reverse Stock Split, and changed its name to “X4 Pharmaceuticals, Inc.” Following the completion of the Merger, the business conducted by the Company became primarily the business conducted by X4 Therapeutics, Inc., which is a clinical-stage biopharmaceutical company focused on the discovery, development and commercialization of novel therapeutics for the treatment of rare diseases.

Unless otherwise noted, all references to common stock share and per share amounts in this Quarterly Report on Form10-Q have been retroactively adjusted to reflect the conversion of shares in the Merger based on an Exchange Ratio of 0.5702 and, the Reverse Stock Split. As used herein, the words “the Company,” “we,” “us,” and “our” refer to, for periods following the Merger, X4 Pharmaceuticals, Inc. (formerly Arsanis, Inc.), together with is direct and indirect subsidiaries, and for periods prior to the Merger, X4 Therapeutics, Inc. (formerly X4 Pharmaceuticals, Inc.), and its direct and indirect subsidiaries, as applicable. In addition, the word “Arsanis” refers to the Company prior to the completion of the Merger, and we sometimes refer to X4 Therapeutics, Inc. as “X4.”


2



CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS


This quarterly report includesQuarterly Report on Form 10-Q contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, which we refer to asor the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, which we refer to asor the Exchange Act, that relate to future events or toAct. All statements, other than statements of historical facts, contained in this Quarterly Report on Form 10-Q, including statements regarding our strategy, future operations, future financial position, future revenues, projected costs, prospects, plans and objectives of management, are forward-looking statements. These statements may be identified by such forward-looking terminology as “may,” “should,” “expects,” “intends,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “potential,” “continue” or financial performance. Anythe negative of these terms or other comparable terminology, although not all forward looking statements contain these identifying words. Our forward-looking statement involvesstatements are based on a series of expectations, assumptions, estimates and projections about our company, are not guarantees of future results or performance and involve substantial risks and uncertainty. We may not actually achieve the plans, intentions or expectations disclosed in these forward-looking statements. Actual results or events could differ materially from the plans, intentions and expectations disclosed in these forward-looking statements. These forward-looking statements are subject to a number of known and unknown risks, uncertainties and other factors that may cause our actual results, levels of activity, performance or achievements to differ materially from any future results, levels of activity, performance or achievements expressed or implied by such forward-looking statement. Forward-looking statements include statements, other than statements of historical fact, about,assumptions, including risks described in the section titled “Risk Factors” and elsewhere in this report, regarding, among other things:

things
:

the timing, progress scope, cost, duration orand reporting of results of our development activities, nonclinicalcurrent trials of X4P-001 (mavorixafor), including our global Phase 3 clinical trial in patients with Warts, Hypogammaglobulinemia, Infections, and Myelokathexis, or WHIM, syndrome, our Phase 1b clinical trial in combination with ibrutinib in patients with Waldenström’s macroglobulinemia, and our Phase 1b clinical trial as monotherapy in patients with Severe Congenital Neutropenia, or SCN;

the initiation, timing, progress and results of our current and future preclinical studies and clinical trials ofmavorixafor (X4P-001), X4P-002 and X4P-003 or any of our other product candidates or our research and development programs that we pursue;
our expectations regarding the impact of the ongoing coronavirus disease 2019, or COVID-19, pandemic, included the expected duration of disruption and immediate and long-term impact and effect on our business and operations;
the diversion of healthcare resources away from the conduct of clinical trials as a result of the ongoing COVID-19 pandemic, including the diversion of hospitals serving as our clinical trial sites and hospital staff or independent physicians supporting the conduct of our clinical trials;
the interruption of key clinical trial activities, such as the target indication(s) for development, the size, design, population, conduct, cost, objective or endpoints of any clinical trial site monitoring, due to limitations on travel, quarantines or social distancing protocols imposed or recommended by federal or state governments, employers and others in connection with the timing for initiation or completion of or availability of results from any clinical trial (including our planned trials for mavorixafor in WHIM syndrome, severe congenital neutropenia, or SCN, and Waldenström macroglobulinemia, or WM), for submission or approval of any regulatory filing or for meeting with regulatory authorities;

ongoing COVID-19 pandemic;

the potential benefits that may be derived from any of our product candidates;

the timing of and our ability to obtain and maintain regulatory approval of our existing product candidates or any product candidates that we may develop in the future, and any related restrictions, limitations, or warnings in the label of any approved product candidates;

our plans to research, develop, manufacture and commercialize our product candidates;

the timing of our regulatory filings for our product candidates, along with regulatory developments in the United States and other foreign countries;
the size and growth potential of the markets for our product candidates, if approved, and the rate and degree of market acceptance of our product candidates, including reimbursement that may be received from payors;
the benefits of U.S. Food and Drug Administration, or FDA, and European Commission designations such as, including, without limitation, Fast Track, Orphan Drug and Breakthrough Therapy;
our commercialization, marketing and manufacturing capabilities and strategy;
our ability to attract and retain qualified employees and key personnel;
our competitive position;
3


our expectations regarding our ability to obtain and maintain intellectual property protection;
the success of competing therapies that are or may become available;
our estimates and expectations regarding future operations, financial position, revenues, costs, expenses, uses of cash, capital requirements or our need for additional financing;
our ability to raise additional capital; and

our strategies, prospects, plans, expectations or objectives.

Words such as, but not limited


You should refer to “believe,” “expect,” “anticipate,” “estimate,” “forecast,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “targets,” “likely,” “will,” “would,” “could,” “should,” “continue,” “scheduled” and similar expressions or phrases, or the negative of those expressions or phrases, are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Although we believe that we have a reasonable basis for each forward-looking statement containedsection titled “Risk Factors" in this report, we caution you that these statements are based on our estimates or projectionsQuarterly Report for a discussion of the future that are subject to known and unknown risks and uncertainties and other important factors that may cause our actual results level of activity, performance, experience or achievements to differ materially from those expressed or implied by anyour forward-looking statement. These risks, uncertainties and other factors are described in greater detail under the caption “Risk Factors” contained in our Annual Report on Form10-K for the fiscal year ended December 31, 2018, as updated by our Current Report on Form8-K filed on April 11, 2019 and our subsequent filings under the Exchange Act, and in other filings that we make with the Securities and Exchange Commission, or SEC.statements. As a result of the risks and uncertainties, the results or events indicated bythese factors, we cannot assure you that the forward-looking statements in this Quarterly Report will prove to be accurate. Furthermore, if our forward-looking statements prove to be inaccurate, the inaccuracy may be material. In light of the significant uncertainties in these forward-looking statements, you should not occur.regard these statements as a representation or warranty by us or any other person that we will achieve our objectives and plans in any specified time frame, or at all. We caution you notundertake no obligation to place undue reliance onpublicly update any forward-looking statement.

In addition, anystatements, whether as a result of new information, future events or otherwise, except as required by law. You should, therefore, not rely on these forward-looking statement in this quarterly report represents our views only as of the date of this quarterly report and should not be relied uponstatements as representing our views as of any date subsequent date. We anticipate that subsequent events and developments may cause our views to change. Although we may elect to update these forward-looking statements publicly at some point in the future, we specifically disclaim any obligation to do so, except as required by applicable law. Our forward-looking statements do not reflect the potential impactdate of any future acquisitions, mergers, dispositions, joint ventures or investments we may make.

this Quarterly Report.



4


PART I:I FINANCIAL INFORMATION

Item 1.

FINANCIAL STATEMENTS


Item 1. FINANCIAL STATEMENTS.
X4 PHARMACEUTICALS, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands, except share and per share amounts)

(Unaudited)

   March 31,
2019
  December 31,
2018
 

Assets

   

Current assets:

   

Cash and cash equivalents

  $22,299  $8,134 

Research and development incentive receivable

   1,552   —   

Prepaid expenses and other current assets

   2,372   1,205 
  

 

 

  

 

 

 

Total current assets

   26,223   9,339 

Property and equipment, net

   271   241 

Intangible assets

   4,900   —   

Goodwill

   27,407   —   

Right-of-use assets

   2,705   —   

Restricted cash

   947   364 

Other assets

   96   —   
  

 

 

  

 

 

 

Total assets

  $62,549  $9,944 
  

 

 

  

 

 

 

Liabilities, Convertible Preferred Stock, Redeemable Common Stock and Stockholders’ Equity (Deficit)

   

Current liabilities:

   

Accounts payable

  $6,132  $2,969 

Accrued expenses

   4,179   3,251 

Current portion of lease liability

   841   —   

Current portion of long-term debt

   5,298   1,687 
  

 

 

  

 

 

 

Total current liabilities

   16,450   7,907 

Preferred stock warrant liability

   —     4,947 

Long-term debt, including accretion, net of discount and current portion

   13,365   8,145 

Deferred rent

   —     417 

Lease liability

   3,275   —   

Other liabilities

   18   205 
  

 

 

  

 

 

 

Total liabilities

   33,108   21,621 
  

 

 

  

 

 

 

Commitments and contingencies (Note 9)

   

Convertible preferred stock (Series Seed, A and B), $0.001 par value; 10,000,000 and 59,413,523 shares authorized as of March 31, 2019 and December 31, 2018, respectively; 0 and 40,079,567 shares issued and outstanding as of March 31, 2019 and December 31, 2018, respectively

   —     64,675 
  

 

 

  

 

 

 

Redeemable common stock, $0.001 par value; 0 and 107,364 shares issued and outstanding as of March 31, 2019 and December 31, 2018, respectively

   —     734 
  

 

 

  

 

 

 

Stockholders’ equity (deficit):

   

Common stock, $0.001 par value. 33,333,333 and 11,070,776 shares authorized as of March 31, 2019 and December 31, 2018, respectively: 6,724,511 and 351,652 shares issued and outstanding as of March 31, 2019 and December 31, 2018, respectively

   7   —   

Additionalpaid-in capital

   119,521   2,151 

Accumulated other comprehensive income

   23   —   

Accumulated deficit

   (90,110  (79,237
  

 

 

  

 

 

 

Total stockholders’ equity (deficit)

   29,441   (77,086
  

 

 

  

 

 

 

Total liabilities, convertible preferred stock, redeemable common stock and stockholders’ equity (deficit)

  $62,549  $9,944 
  

 

 

  

 

 

 

March 31, 2020December 31, 2019
Assets
Current assets:
Cash and cash equivalents$115,054  $126,184  
Accounts receivable3,000  —  
Research and development incentive receivable416  1,998  
Prepaid expenses and other current assets3,480  1,096  
Total current assets121,950  129,278  
Property and equipment, net475  403  
Goodwill27,109  27,109  
Right-of-use assets1,803  1,959  
Other assets2,380  1,949  
Total assets$153,717  $160,698  
Liabilities, Convertible Preferred Stock, Redeemable Common Stock and Stockholders’ Equity
Current liabilities:
Accounts payable$1,248  $2,088  
Accrued expenses5,786  6,461  
Current portion of lease liability916  898  
Total current liabilities7,950  9,447  
Long-term debt, including accretion, net of discount and current portion25,266  20,097  
Lease liability1,684  1,918  
Other liabilities26  16  
Total liabilities34,926  31,478  
Commitments and contingencies (Note 9)
Stockholders’ equity:
Common stock, $0.001 par value. 33,333,333 shares authorized as of March 31, 2020 and December 31, 2019, respectively; 16,141,868 and 16,128,862 shares issued and outstanding as of March 31, 2020 and December 31, 2019, respectively16  16  
Additional paid-in capital262,076  261,367  
Accumulated other comprehensive loss(119) (119) 
Accumulated deficit(143,182) (132,044) 
Total stockholders’ equity118,791  129,220  
Total liabilities and stockholders’ equity$153,717  $160,698  





The accompanying unaudited notes are an integral part of these unaudited condensed consolidated financial statements.

5


X4 PHARMACEUTICALS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

AND COMPREHENSIVE LOSS

(In thousands, except share and per share amounts)

(Unaudited)

   Three Months Ended
March 31,
 
   2019  2018 

Operating expenses:

   

Research and development

  $5,655  $4,744 

General and administrative

   4,783   1,366 
  

 

 

  

 

 

 

Total operating expenses

   10,438   6,110 
  

 

 

  

 

 

 

Loss from operations

   (10,438  (6,110
  

 

 

  

 

 

 

Other income (expense):

   

Interest income

   69   69 

Interest expense

   (399  (169

Change in fair value of preferred stock warrant liability

   (288  (592

Change in fair value of derivative liability

   183   (565
  

 

 

  

 

 

 

Total other income (expense), net

   (435  (1,257
  

 

 

  

 

 

 

Net loss

   (10,873  (7,367

Accruing dividends on Series A convertible preferred stock

   (592  (740
  

 

 

  

 

 

 

Net loss attributable to common stockholders

  $(11,465 $(8,107
  

 

 

  

 

 

 

Net loss per share attributable to common stockholders—basic and diluted

  $(6.67 $(17.70
  

 

 

  

 

 

 

Weighted average common shares outstanding—basic and diluted

   1,717,808   457,971 
  

 

 

  

 

 

 

Three Months Ended
March 31,
20202019
License revenue$3,000  $—  
Operating expenses:
Research and development8,911  5,655  
General and administrative4,670  4,783  
Total operating expenses13,581  10,438  
Loss from operations(10,581) (10,438) 
Other expense:
Interest income296  69  
Interest expense(584) (399) 
Change in fair value of preferred stock warrant liability—  (288) 
Change in fair value of derivative liability—  183  
Other income41  —  
Loss on extinguishment of debt(162) —  
Total other expense, net(409) (435) 
Loss before provision for income taxes(10,990) (10,873) 
Provision for income taxes148  —  
Net loss(11,138) (10,873) 
Accruing dividends on Series A convertible preferred stock—  (592) 
Net loss attributable to common stockholders$(11,138) $(11,465) 
Net loss per share attributable to common stockholders—basic and diluted$(0.56) $(6.67) 
Weighted average common shares outstanding—basic and diluted20,014  1,718  

Net loss$(11,138) $(10,873) 
Currency translation adjustments—  23  
Total comprehensive loss$(11,138) $(10,850) 





The accompanying unaudited notes are an integral part of these unaudited condensed consolidated financial statements.

6

X4 PHARMACEUTICALS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS

(In thousands)

(Unaudited)

   Three Months Ended
March 31,
 
   2019  2018 

Net loss

  $(10,873 $(7,367

Other comprehensive gain

   

Currency translation adjustments

   23   —   
  

 

 

  

 

 

 

Total comprehensive loss

  $(10,850 $(7,367
  

 

 

  

 

 

 

The accompanying unaudited notes are an integral part of these condensed consolidated financial statements

X4 PHARMACEUTICALS, INC

CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK, REDEEMABLE COMMON

STOCK AND STOCKHOLDERS’ EQUITY (DEFICIT)

(In thousands, except share amounts)

(Unaudited)

  Series Seed, A and B
Convertible Preferred
  Redeemable
Common Stock
  Common Stock  Additional
Paid-In
Capital
  AOCI  Accumulated
Deficit
  Total
Stockholders’
(Deficit) Equity
 
  Shares  Amount  Shares  Amount  Shares  Amount 

Balances at December 31, 2018

  40,079,567  $64,675   107,364  $734   351,652  $—    $2,151  $—    $(79,237 $(77,086

Conversion of redeemable common stock into common stock

  —     —     (107,364  (734  107,364   1   733   —     —     734 

Conversion of convertible preferred shares into common stock

  (40,079,567  (64,675  —     —     3,808,430   4   64,671   —     —     64,675 

Exchange of common stock in connection with Merger

  —     —     —     —     2,440,582   2   45,539   —     —     45,541 

Fair value of replacement equity awards

  —     —     —     —     —     —     817   —     —     817 

Reclassification of warrant liability to permanent equity

  —     —     —     —     —     —     5,235   —     —     5,235 

Exercise of stock options

  —     —     —     —     16,483   —     113   —     —     113 

Stock-based compensation expense

  —     —     —     —     —     —     262   —     —     262 

Net loss

  —     —     —     —     —     —     —     23   (10,873  (10,850
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Balances at March 31, 2019

  —    $—     —    $—     6,724,511  $7  $119,521  $23  $(90,110 $29,441 
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

  Series Seed, A and B
Convertible Preferred
  Redeemable
Common Stock
  Common Stock  Additional
Paid-In
Capital
  AOCI  Accumulated
Deficit
  Total
Stockholders’
(Deficit)
 
  Shares  Amount  Shares  Amount  Shares  Amount 

Balances at December 31, 2017

  38,018,968  $60,903   107,364  $734   350,607  $—    $1,385  $—    $(45,930 $(44,545

Repurchase of Series Seed convertible preferred stock, net of issuance costs of $1

  (598,975  (517  —     —     —     —     —     —     (22  (22

Stock-based compensation expense

  —     —     —     —     —     —     128   —     —     128 

Net loss

  —     —     —     —     —     —     —     —     (7,367  (7,367
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 

Balances at March 31, 2018

  37,419,993  $60,386   107,364  $734   350,607  $—    $1,513  $—    $(53,319 $(51,806
 

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

  

 

 

 


Common StockAdditional
Paid-In
Capital
Accumulated Other Comprehensive
Loss
Accumulated
Deficit
Total
Stockholders’
Equity
SharesAmount
Balance at December 31, 201916,128,862  $16  $261,367  $(119) $(132,044) $129,220  
Exercise of stock options13,006  —  96  96  
Stock-based compensation expense613  613  
Net loss(11,138) (11,138) 
Balance at March 31, 202016,141,868  16  262,076  (119) (143,182) 118,791  

Series Seed, A and B
Convertible Preferred
Redeemable
Common Stock
Common StockAdditional
Paid-In
Capital
Accumulated Other Comprehensive
Income
Accumulated
Deficit
Total
Stockholders’
(Deficit)
SharesAmountSharesAmountSharesAmount
Balance at December 31, 201840,079,567  $64,675  107,364  $734  351,652  —  $2,151  —  $(79,237) $(77,086) 
Conversion of redeemable common stock into common stock(107,364) (734) 107,364   733  734  
Conversion of convertible preferred shares into common stock(40,079,567) (64,675) 3,808,430   64,671  64,675  
Exchange of common stock in connection with Merger2,440,582   45,539  45,541  
Fair value of replacement equity awards817  817  
Reclassification of warrant liability to permanent equity5,235  5,235  
Exercise of stock options16,483  113  113  
Stock-based compensation262  262  
Currency translation adjustment23  23  
Net loss(10,873) (10,873) 
Balance at March 31, 2019—  —  —  —  6,724,511   119,521  23  (90,110) 29,441  


The accompanying unaudited notes are an integral part of these unaudited condensed consolidated financial statements.

7


X4 PHARMACEUTICALS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

(Unaudited)

   Three Months Ended
March 31,
 
   2019  2018 

Cash flows from operating activities:

   

Net loss

  $(10,873 $(7,367

Adjustments to reconcile net loss to net cash used in operating activities:

   

Stock-based compensation expense

   262   128 

Depreciation expense

   20   26 

Non-cash lease expense

   119   —   

Non-cash interest expense

   153   27 

Change in fair value of preferred stock warrant liability

   288   592 

Change in fair value of derivative liability

   (183  565 

Changes in operating assets and liabilities:

   

Prepaid expenses and other current assets

   (595  170 

Accounts payable

   1,332   (563

Accrued expenses

   (2,072  240 

Operating lease liabilities

   (201  —   
  

 

 

  

 

 

 

Net cash used in operating activities

   (11,750  (6,182
  

 

 

  

 

 

 

Cash flows from investing activities:

   

Cash and restricted cash acquired in connection with the Merger

   26,406   —   
  

 

 

  

 

 

 

Net cash provided by investing activities

   26,406   —   
  

 

 

  

 

 

 

Cash flows from financing activities:

   

Proceeds from exercise of stock options

   113   —   

Repurchase of Series Seed convertible preferred stock

   —     (1,126

Repayments of borrowings under loan and security agreement

   —     (500

Payments of issuance costs of convertible preferred stock

   —     (34
  

 

 

  

 

 

 

Net cash provided by (used in) financing activities

   113   (1,660
  

 

 

  

 

 

 

Effect of exchange rate changes on cash, cash equivalents and restricted cash

   (21  —   
  

 

 

  

 

 

 

Net increase (decrease) in cash, cash equivalents and restricted cash

   14,748   (7,842

Cash, cash equivalents and restricted cash at beginning of period

   8,498   27,048 
  

 

 

  

 

 

 

Cash, cash equivalents and restricted cash at end of period

  $23,246  $19,206 
  

 

 

  

 

 

 

Supplemental disclosure of cash flow information:

   

Cash paid for interest

  $243  $146 

Supplemental disclosure ofnon-cash investing and financing activities:

   

Conversion of convertible preferred stock into common stock

  $64,675   —   

Conversion of redeemable common stock into common stock

  $734   —   

Conversion of convertible preferred stock warrants into common stock warrants

  $5,235   —   

Fair value of net assets acquired in Merger

  $46,358   —   

Three Months Ended
March 31,
20202019
Cash flows from operating activities:
Net loss$(11,138) $(10,873) 
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense613  262  
Depreciation and amortization expense36  20  
Non-cash lease expense158  119  
Accretion of debt discount119  153  
Loss on extinguishment of debt162  —  
Change in fair value of preferred stock warrant liability—  288  
Change in fair value of derivative liability—  (183) 
Other70  —  
Changes in operating assets and liabilities:
Accounts receivable(3,000) —  
Prepaid expenses, other current assets and research and development incentive receivable(869) (595) 
Accounts payable(800) 1,332  
Accrued expenses(668) (2,072) 
Lease liabilities(210) (201) 
Net cash used in operating activities(15,527) (11,750) 
Cash flows from investing activities:
Cash, cash equivalents and restricted cash acquired in connection with the Merger—  26,406  
Acquisition of property, equipment and intangible assets(555) —  
Net cash provided by investing activities(555) 26,406  
Cash flows from financing activities:
Proceeds from exercise of stock options and warrants96  113  
Proceeds from borrowings under loan and security agreements, net of issuance costs4,888  —  
Net cash provided by financing activities4,984  113  
Effect of exchange rate changes on cash, cash equivalents and restricted cash(34) (21) 
Net (decrease) increase in cash, cash equivalents and restricted cash(11,132) 14,748  
Cash, cash equivalents and restricted cash at beginning of period128,086  8,498  
Cash, cash equivalents and restricted cash at end of period$116,954  $23,246  
Supplemental disclosure of non-cash investing and financing activities:
Issuance costs not yet paid$20  $—  
Conversion of convertible preferred stock into common stock$—  $64,675  
Conversion of redeemable common stock into common stock$—  $734  
Conversion of convertible preferred stock warrants into common stock warrants$—  $5,235  
Fair value of net assets acquired in the Merger$—  $46,358  


The accompanying unaudited notes are an integral part of these unaudited condensed consolidated financial statements.

8

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALSFINANCIAL STATEMENTS

(Amounts in thousands, except share

(Unaudited)

1. Nature of the Business and per share amounts)

(Unaudited)

1.

Nature of the Business and Basis of Presentation

Basis of Presentation

X4 Pharmaceuticals, Inc. (formerly Arsanis, Inc.), together with its subsidiaries, (thethe “Company”), is a clinical-stage biotechnology research and development company focused on the research, development and commercialization of novel therapeutics for the treatment of rare diseases. The Company’s lead product candidate, mavorixafor, is a potential first-in-class, once-daily, oral inhibitor of CXCR4 and is currently in a Phase 3 clinical trial for the treatment of Warts, Hypogammaglobulinemia, Infections, and Myelokathexis (“WHIM”) syndrome, a rare, inherited, primary immunodeficiency disease caused by genetic mutations in the CXCR4 receptor gene. The Company is also conducting a 14-day, proof-of-concept Phase 1b clinical trial of mavorixafor in patients with severe congenital neutropenia (“SCN”) and a Phase 1b clinical trial of mavorixafor in combination with ibrutinib in Waldenström’s macroglobulinemia (“WM”). The Company is headquartered in Cambridge, Massachusetts.

Liquidity—As ofMarch 31, 2020, the Company had $115.1 million of cash and cash equivalents and an accumulated deficit of $143.2 million. As of the issuance date of these condensed consolidated financial statements, the Company expects that its cash and cash equivalents will be sufficient to fund its forecasted operating expenses, capital expenditure requirements and debt service payments for at least the next twelve months from the date of these financial statements.
Since its inception, the Company has incurred significant operating losses and negative cash flows from operations. The Company is subjecthas not yet commercialized a product and does not expect to risksgenerate revenue from the commercial sale of any products for several years, if at all. The Company expects that its research and uncertainties commondevelopment and general and administrative expenses will continue to early-stage companies in the biotechnology industry, including, but not limited to, development by competitors of new technological innovations, dependence on key personnel, protection of proprietary technology, compliance with governmental regulationsincrease and, the ability to secureas a result, will need additional capital to fund its future operations, which it may raise through a combination of equity offerings, debt financings, other third-party funding, marketing and distribution arrangements and other collaborations, strategic alliances and licensing arrangements. The Company has funded its operations to date primarily with proceeds from sales of common stock, warrants and prefunded warrants for the purchase of shares of preferred stock and shares of common stock, sales of preferred stock, proceeds from the issuance of convertible debt and borrowings under loan and security agreements.
If the Company is unable to obtain future funding when needed, the Company may be forced to delay, reduce or eliminate some or all of its research and development programs, product portfolio expansion or pre-commercialization efforts, which could adversely affect its business prospects, or the Company may be unable to continue operations. Drug candidates currently under development will require extensive preclinical and clinical testing and regulatory approval prior to commercialization. These efforts require significant amounts of additional capital, adequate personnel, and infrastructure and extensive compliance-reporting capabilities. Even if the Company’s drug development efforts are successful, itThere is uncertain when, if ever,no assurance that the Company will realize significant revenue from product sales.

The accompanying condensed consolidated financial statements have been preparedbe successful in accordance with accounting principles generally accepted inobtaining sufficient funding on terms acceptable to the United States of America (“GAAP”) and include the accountsCompany to fund continuing operations, if at all.

Impact of the CompanyCOVID-19 Pandemic— The impact of the COVID-19 pandemic has been and will likely continue to be extensive in many aspects of society, which has resulted in and will likely continue to result in significant disruptions to the global economy, as well as businesses and capital markets around the world. Impacts to the Company’s business have included temporary closures of its wholly owned subsidiaries. All intercompany accountsclinical trial sites or facilities, disruptions or restrictions on its employees’ ability to travel, disruptions to or delays in ongoing clinical trials, including enrollment at a slower pace, and transactions have been eliminated in consolidation.

the diversion of healthcare resources away from the conduct of the Company’s clinical trials as a result of the ongoing COVID-19 pandemic, including the diversion of hospitals serving as the Company’s clinical trial sites and hospital staff supporting the conduct of clinical trials.

Merger with Arsanis

Arsanis— On November 26, 2018, Arsanis, Inc., a publicly held Delaware corporation (“Arsanis”), Artemis AC Corp., a Delaware corporation and a wholly ownedwholly-owned subsidiary of Arsanis (“Merger Sub”), and X4 Therapeutics, Inc. (“X4”) entered into an Agreement and Plan of Merger, as amended on December 20, 2018 and March 8, 2019 (the “Merger Agreement”), pursuant to which the Merger Sub merged with and into X4, with X4 surviving the merger as a wholly ownedwholly-owned subsidiary of Arsanis. The transactions described in the foregoing sentence may be referred to in these condensed consolidated financial statements as “the Merger.”

The transaction was accounted for as a reverse merger in accordance with GAAP. Under this method of accounting, X4 was deemed to be the accounting acquirer for financial reporting purposes. This determination was primarily based on the facts that, immediately following the Merger: (i) the Company’s stockholders own a substantial majority of the voting rights in the combined organization, (ii) the Company designated a majority of the members of the initial board of directors of the combined organization and (iii) the Company’s senior management hold all key positions in the senior management of the combined organization. Accordingly, for accounting purposes, the business combination was treated as the equivalent of X4 issuing stock to acquire the net assets of Arsanis. As a result, as of the closing date of the Merger, the net assets of Arsanis were recorded at their acquisition-date fair values in the financial statements of the Company and the reported operating results prior to the business combination will be those of the Company. In addition, transaction costs incurred by the Company in connection with the business combination will be expensed as incurred.

On March 13, 2019, Arsanis, X4 and Merger Sub completed the Merger pursuant to the terms of the Merger Agreement. Pursuant to the terms of the Merger Agreement, each outstanding share of X4’s common stock and preferred stock was exchanged for 0.5702 shares of Arsanis’s common stock (the “Exchange Ratio”). In addition, all outstanding options exercisable for common stock and warrants exercisable for convertible preferred stock of X4 became options and warrants exercisable for the same number of shares of common stock of Arsanis multiplied by the Exchange Ratio. In connection with the Merger, X4 changed its name to X4 Therapeutics, Inc. Following the closing of the Merger, X4 Therapeutics, Inc. isbecame a wholly ownedwholly-owned subsidiary of the Company.Company, which changed its name to X4 Pharmaceuticals, Inc. As used herein, the words “the Company” refers to, for periods following the Merger, X4 Pharmaceuticals, Inc. (formerly Arsanis, Inc.), together with is direct
9

X4 PHARMACEUTICALS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)
and indirect subsidiaries, and for periods prior to the Merger, X4 Therapeutics, Inc. (formerly X4 Pharmaceuticals, Inc.), and its direct and indirect subsidiaries, as applicable.

Immediately following

2. Summary of Significant Accounting Policies
Significant Accounting Policies—The Company’s significant accounting policies are disclosed in the Merger, stockholdersaudited consolidated financial statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019 and the notes thereto filed with the U.S. Securities and Exchange Commission (“SEC”) on March 12, 2020. Since the date of X4 owned approximately 63.7%those consolidated financial statements, there have been no material changes to the Company's significant accounting policies other that as listedbelow.
Risks and Uncertainties—With the global spread of the combined organization’s outstanding common stock. On March 14, 2019,ongoing COVID-19 pandemic in the combined organization’s common stock began trading on The Nasdaq Capital Market underfirst quarter of 2020, the ticker symbol “XFOR.”

Reverse Stock Split

On March 13, 2019, immediately followingCompany has implemented business continuity measures designed to address and mitigate the closingimpact of the Merger,COVID-19 pandemic on its business. The Company anticipates that the Company effected a6-for-1 reverse stock splitCOVID-19 pandemic will have an impact on the clinical development timelines for certain of its clinical programs. The extent to which the COVID-19 pandemic impacts the Company’s business, its clinical development and regulatory efforts, its corporate development objectives and the value of and market for its common stock, (the “Reverse Stock Split”). Accordingly, all sharewill depend on future developments that are highly uncertain and per share amounts for all periods presentedcannot be predicted with confidence at this time, such as the ultimate duration of the pandemic, travel restrictions, quarantines, social distancing and business closure requirements in the accompanyingUnited States, Europe and other countries, and the effectiveness of actions taken globally to contain and treat the disease. While the Company is experiencing limited financial impacts at this time, the duration and intensity of these impacts and resulting disruption to the Company's operations is uncertain and the Company will continue to assess the financial impact.


In addition, the Company is subject to other challenges and risks specific to its business and its ability to execute on its business plan and strategy, as well as risks and uncertainties common to companies in the biotechnology industry with research and development operations, including, without limitation, risks and uncertainties associated with: obtaining regulatory approval of its product candidates; delays or problems in obtaining clinical supply, loss of single source suppliers or failure to comply with manufacturing regulations; identifying, acquiring or in-licensing additional products or product candidates; product development and the inherent uncertainty of clinical success; and the challenges of protecting and enhancing its intellectual property rights; and the challenges of complying with applicable regulatory requirements. In addition, to the extent the ongoing COVID-19 pandemic adversely affects the Company’s business and results of operations, it may also have the effect of heightening many of the other risks and uncertainties discussed above.
Principles of Consolidation— The condensed consolidated financial statements and notes thereto have been adjusted retroactively, where applicable, to reflectinclude the Reverse Stock Split. No fractional shares were issued in connection with the Reverse Stock Split. Unless otherwise noted, all references to common stock share and per share amounts have also been adjusted to reflect the exchange ratio of 0.5702.

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

Going Concern Assessment

In accordance with Accounting Standards Update (“ASU”)No. 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern (Subtopic205-40) , the Company has evaluated whether there are certain conditions and events, considered in the aggregate, that raise substantial doubt about the Company’s ability to continue as a going concern within one year after the date that the consolidated financial statements are issued. As of May 14, 2019, the issuance date of these condensed consolidated financial statements, the Company expects that its cash and cash equivalents, including approximately $79 million of net proceeds from the public sale of common stock,pre-funded warrants and Class A warrants in April 2019, will be sufficient to fund its forecasted operating expenses, capital expenditure requirements and debt service payments for at least the next twelve months from the issuance of these financial statements. The future viabilityaccounts of the Company beyond that pointand its wholly-owned subsidiaries, including X4 Pharmaceuticals (Austria) GmbH, which is dependent on its ability to raise additional capital to finance its operations.

If the Company is unable to obtain funding, the Company will be forced to delay, reduce or eliminate some or all of its researchincorporated in Vienna, Austria (“X4 GmbH”), and development programs, product portfolio expansion orpre-commercialization efforts, which could adversely affect its business prospects, or the Company may be unable to continue operations. Although management continues to pursue these plans, there is no assurance that the Company will be successful in obtaining sufficient funding on terms acceptable to the Company to fund continuing operations, if at all.

2.

Summary of Significant Accounting Policies

X4 Therapeutics, Inc. All significant intercompany accounts and transactions have been eliminated.

Unaudited Interim Financial Statements

Statements— The condensed consolidated balance sheet at December 31, 20182019 was derived from audited financial statements but does not include all disclosures required by GAAP.accounting principles generally accepted in the United States of America (“GAAP"). The accompanying condensed consolidated financial statements are unaudited. The accompanying unaudited interim consolidated financial statements have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”)SEC for interim financial statements. Accordingly, certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. However, the Company believes that the disclosures are adequate to make the information presented not misleading. These unaudited condensed consolidated financial statements should be read in conjunction with the Company’s audited financial statements and the notes thereto for the year ended December 31, 2018.2019 included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019 filed with the SEC on March 12, 2020. In the opinion of management, all adjustments, consisting only of normal recurring adjustments as necessary, for the fair statement of the Company’s condensed financial position, condensed results of its operations and cash flows have been made. The results of operations for the three months ended March 31, 20192020 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2019.

2020.


Use of Estimates

Estimates— The preparation of the Company’s condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements, and the reported amounts of expenses during the reporting period. Significant estimates and assumptions reflected in these condensed consolidated financial

10

X4 PHARMACEUTICALS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)
statements include, but are not limited to, the accrual of research and development expenses, the valuationimpairment or lack of intangibleimpairment of long-lived assets acquired in business combinations, the valuations of common stock prior to the Merger, the valuation of stock options, preferred stock warrants (and the resulting preferred stock warrant liability), derivative instruments (and the resulting derivative liability),including operating lease right-of-use assets and goodwill, and the preferred stock repurchase liability, and valuationconstraint of lease liabilities.variable consideration from contracts with customers. The Company bases its estimates on historical experience, known trends and other market-specific or other relevant factors that it believes to be reasonable under the circumstances. On an ongoing basis, management evaluates its estimates when there are changes in circumstances, facts and experience. Changes in estimates are recorded in the period in which they become known. The Company anticipates that the COVID-19 pandemic will have an impact on the clinical development timelines for certain of its programs.As of the date of issuance of these financial statements, the Company is not aware of any specific event or circumstance that would require the Company to update its estimates, assumptions and judgments or revise the carrying value of its assets or liabilities. Actual results could differ from those estimates.

Principles of Consolidation

The condensed consolidated financial statements include the accounts of the Companyestimates, and its wholly owned subsidiaries, including Arsanis Biosciences GmbH, which is incorporated in Vienna, Austria (“Arsanis GmbH”), and X4 Therapeutics, Inc. All significant intercompany accounts and transactions have been eliminated.

Foreign Currency and Currency Translation

Management has determined that the functional currency forany such differences may be material to the Company’s wholly owned foreign subsidiary, Arsanis Biosciences GmbH, is the Euro. Management’s assessment considered the currency environment in which the entity operates, including inflows of

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

cash from research and development incentive programs and outflows of cash for operating expenditure. Accordingly, the assets and liabilities of Arsanis Biosciences GmbH are translated from the Euro into United States dollars at the exchange rate in effect on the balance sheet date and income and expenses are translated at the average exchange rate in effect during the period. Unrealized translation gains and losses are recorded as a cumulative translation adjustment, which is included in the consolidated balance sheet as a component of accumulated other comprehensive income (loss). Adjustments that arise from exchange rate changes on transactions denominated in a currency other than the Euro are included in other income (expense), net in the consolidated statements of operations as incurred.

Concentrations of Credit Risk and Significant Suppliers

Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents and research and development incentive receivables. The Company generally maintains cash balances in various operating accounts at financial institutions that management believes to be of high credit quality, in amounts that may exceed federally insured limits. The Company has not experienced any losses related to its cash and cash equivalents.

The Company is dependent on third-party manufacturers to supply products for research and development activities in its programs. The Company relies and expects to continue to rely on a small number of manufacturers to supply it with its requirements for the active pharmaceutical ingredients and formulated drugs related to these programs. These programs could be adversely affected by a significant interruption in these manufacturing services or in the supply of active pharmaceutical ingredients and formulated drugs.

statements.

Cash and Cash Equivalents

Equivalents— The Company considers all highly liquid investments with maturities of three months or less at the date of purchase to be cash equivalents. Cash equivalents consisted of money market funds as of March 31, 20192020 and December 31, 2018.

2019.

Restricted Cash

Cash—

(in thousands)As of March 31, 2020As of December 31, 2019
Letter of credit security: Cambridge lease$264  $264  
Letter of credit security: Waltham lease250  250  
Letter of credit security: Vienna Austria lease92  94  
Letter of credit security: Allston lease1,144  1,144  
Corporate credit card collateral150  150  
Total restricted cash (non-current)$1,900  $1,902  

In connection with the Company’s lease agreement entered into January 2017agreements for its facilityfacilities in Cambridge, Massachusetts and Austria, the Company maintains a letterletters of credit, of $264which are secured by restricted cash, for the benefit of the landlord. As
The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the condensed consolidated balance sheets to the sum of the total of amounts shown in the Company’s condensed consolidated statements of cash flows as of March 31, 2020, December 31, 2019, March 31, 2019 and December 31, 2018, the underlying cash balance securing this letter of credit was classified as restricted cash(non-current) on its condensed consolidated balance sheets.

The Company also maintains letters of credit for the benefit of the landlords in connection with the Company’s office, laboratory, parking and storage space leases in Waltham, MA and Vienna, Austria and another letter of credit in connection with Company’s corporate credit cards. As of March 31, 2019, long term restricted cash consisted of letters of credit related to the Company’s leases of office, laboratory, parking and storage space lease in Vienna, Austria, of $283 and leased office space acquired from Arsanis located in Waltham, MA, which expires on December 31, 2023, of approximately $250.

As of March 31, 2019, the Company was also required to maintain a separate cash balance of $150 to collateralize corporate credit cards with a bank, which was classified as restricted cash(non-current) on its consolidated balance sheets.

Property and Equipment

Property and equipment are stated at cost less accumulated depreciation and amortization. Depreciation and amortization expense is recognized using the straight-line method over the estimated useful life of each asset, as follows:

Estimated Useful Life

Office furniture

3 years

Computer equipment

3 years

Software

3 years

Laboratory equipment

3 to 10 years

Leasehold improvements

Shorter of lease term or 10 years

Estimated useful lives are periodically assessed to determine if changes are appropriate. Maintenance and repairs are charged to expense as incurred. When assets are retired or otherwise disposed of, the cost of these assets and related accumulated depreciation or amortization are eliminated from the consolidated balance sheet and any resulting gains or losses are included in the consolidated statements of operations and comprehensive loss in the period of disposal. Costs for capital assets not yet placed into service are capitalized asconstruction-in-progress and depreciated once placed into service.

2018: 

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

Right-of-Use Assets and Leases

Effective January 1, 2019, the Company adopted Accounting Standards Codification (“ASC”), Topic 842,Leases(“ASC 842”), using the modified retrospective approach through a cumulative-effect adjustment and utilizing the effective date as its date of initial application, with prior periods unchanged and presented in accordance with the guidance in Topic 840,Leases (“ASC 840”).

At the inception of an arrangement, the Company determines whether the arrangement is or contains a lease based on the unique facts and circumstances present. Leases with anon-cancellable term greater than one year are recognized on the balance sheet asright-of-use assets, lease liabilities and long-term lease liabilities. The Company has elected not to recognize on the balance sheet leases with terms of one year or less. Options to renew a lease are not included in the Company’s initial lease term assessment unless there is reasonable certainty that the Company will renew.

Operating lease liabilities and their correspondingright-of-use assets are recorded based on the present value of lease payments over the expected remaining lease term. However, certain adjustments to theright-of-use operating asset may be required for items, such as incentives received. The interest rate implicit in lease contracts is typically not readily determinable. As a result, the Company utilizes its incremental borrowing rates, which are the rates it incurs to borrow on a collateralized basis over a similar term an amount equal to the lease payments in a similar economic environment.

In accordance with the guidance in ASC 842, components of a lease are split into lease components andnon-lease components. A policy election is available pursuant to which an entity may elect to not separate lease andnon-lease components. Rather, each lease component and the relatednon-lease components would be accounted for together as a single component. For new and amended leases beginning in 2019 and after, the Company has elected to account for the lease andnon-lease components as a combined lease component for its office and laboratory building leases.

Impairment of Long-Lived Assets

Long-lived assets consist of property and equipment. Long-lived assets to be held and used are tested for recoverability whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable. Factors that the Company considers in deciding when to perform an impairment review include significant underperformance of the business in relation to expectations, significant negative industry or economic trends and significant changes or planned changes in the use of the assets. If an impairment review is performed to evaluate a long-lived asset group for recoverability, the Company compares forecasts of undiscounted cash flows expected to result from the use and eventual disposition of the long-lived asset group to its carrying value. An impairment loss would be recognized in loss from operations when estimated undiscounted future cash flows expected to result from the use of an asset group are less than its carrying amount. The impairment loss would be based on the excess of the carrying value of the impaired asset group over its fair value. To date, the Company has not recorded any impairment losses on long-lived assets.

Goodwill

Business combinations are accounted for under the acquisition method. The total purchase price of an acquisition is allocated to the underlying identifiable net assets, based on their respective estimated fair values as of the acquisition date. Determining the fair value of assets acquired and liabilities assumed requires management’s judgment and often involves the use of significant estimates and assumptions, including assumptions with respect to future cash inflows and outflows, probabilities of success, discount rates, and asset lives, among other items. Assets acquired and liabilities assumed are recorded at their estimated fair values. The excess of the purchase price over the estimated fair values of the net assets acquired is recorded as goodwill.

(in thousands)March 31, 2020December 31, 2019March 31, 2019December 31, 2018
Cash and cash equivalents$115,054  $126,184  $22,299  $8,134  
Restricted cash, non-current1,900  1,902  947  364  
Total cash, cash equivalents and restricted cash$116,954  $128,086  $23,246  $8,498  


Goodwill— Goodwill is tested for impairment at the reporting unit level annually in the fourth quarter, or more frequently when events or changes in circumstances indicate that the asset might be impaired. Examples of such events or circumstances include, but are not limited to, a significant adverse change in legal or business climate, an adverse regulatory action or unanticipated competition. The Company has determined that it operates in a single operating segment and has a single reporting unit.

The Company assesses qualitative factors to determine whether the existence of events or circumstances would indicate that it is more likely than not that the fair value of the reporting unit wasis less than its carrying amount. If after assessing the totality of events or circumstances, the Company were to determine that it is more likely than not that the fair value of the reporting unit is less than its carrying amount, then the Company would perform aan interim quantitative impairment test.

Thetest, whereby the Company compares the fair value of the reporting unit to its carrying value. If the fair value of the reporting unit exceeds the carrying value of theits net assets, goodwill is not impaired, and no further testing is required. If the fair value of the reporting unit is less than theits carrying value, the Company measures the amount of impairment loss, if any, as the excess of the carrying value over the fair value of the reporting unit. The Company has determined there were no indicators

11

X4 PHARMACEUTICALS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)
Given the ongoing COVID-19 pandemic and associated volatility reflected in the global financial markets and uncertain impact on the Company’s operations, management conducted an interim test of its goodwill impairment as of March 31, 2019.

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

Intangible Assets

2020. The Company acquired certainin-process research and development assets (“IPR&D”), which are classifieddetermined that goodwill was not impaired as indefinite-lived intangible assets. Acquired IPR&D represents the fair value assigned to research and development assets that the Company acquires and have not been completed at the acquisition date. The fair value of IPR&D acquired in a business combination is capitalized on the Company’s consolidated balance sheets at the acquisition-date fair value and is determined by estimating the costs to develop the technology into commercially viable products, estimating the resulting revenue from the projects, and discounting the projected net cash flows to present value. IPR&D is not amortized, but rather is reviewed for impairment on an annual basis or more frequently if indicators of impairment are present, until the project is completed or abandoned. If the Company determines that IPR&D becomes impaired or is abandoned, the carrying value is written down to its fair value with the related impairment charge recognized in the Company’s consolidated statement of operations in the period in which the impairment occurs. Upon successful completion of each project and launch of the product, the Company will make a separate determination of the estimated useful life of the IPR&D intangible asset and the related amortization will be recorded as an expense prospectively over its estimated useful life.

The projected discounted cash flow models used to estimate the Company’s IPR&D reflect significant assumptions regarding the estimates a market participant would make in order to evaluate a drug development asset, including the following:

Probability of successfully completing clinical trials and obtaining regulatory approval;

Market size, market growth projections, and market share;

Estimates regarding the timing of and the expected costs to advance the Company’s clinical programs to commercialization;

Estimates of future cash flows from potential product sales; and

A discount rate.

Additionally, to the extent the Company acquire other indefinite-lived intangible assets through its business combinations, these assets are reviewed for impairment on an annual basis or more frequently if indicators of impairment are present. If the Company determines that the asset becomes impaired, the carrying value is written down to its fair value with the related impairment charge recognized in its consolidated statements of operations in the period in which the impairment occurs.

Deferred Rent

The Company’s lease agreements include payment escalations and lease incentives (including a leasehold improvement tenant allowance). For periods prior to January 1, 2019, these payments were accrued or deferred as appropriate such that rent expense was recognized on a straight-line basis over the respective lease terms. Effective January 1, 2019, upon the adoption of ASC 842,deferred rent was reclassified as a reduction to the applicableright-of-use asset as further described in Note 8.

Fair Value Measurements

Certain assets and liabilities of the Company are carried at fair value under GAAP. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. Financial assets and liabilities carried at fair value are to be classified and disclosed in one of the following three levels of the fair value hierarchy, of which the first two are considered observable and the last is considered unobservable:

Level 1—Quoted prices in active markets for identical assets or liabilities.

Level 2—Observable inputs (other than Level 1 quoted prices), such as quoted prices in active markets for similar assets or liabilities, quoted prices in markets that are not active for identical or similar assets or liabilities, or other inputs that are observable or can be corroborated by observable market data.

Level 3—Unobservable inputs that are supported by little or no market activity that are significant to determining the fair value of the assets or liabilities, including pricing models, discounted cash flow methodologies and similar techniques.

Prior to the Merger, the Company’s preferred stock warrant liability, derivative liability and preferred stock repurchase liability were carried at fair value, determined according to Level 3 inputs in the fair value hierarchy described above (See Note 4). The Company’s cash equivalents, consisting of money market funds invested in U.S. Treasury securities, are carried at fair value, determined based on Level 2 inputs in the fair value hierarchy described above (see Note 4). The carrying values of the Company’s accounts payable and accrued expenses approximate their fair values due to the short-term nature of these liabilities. The carrying value of the Company’s outstanding loan and security agreement (the “Hercules Loan Agreement”) with Hercules Capital, Inc. (“Hercules”) approximates its fair value at March 31, 2019 because the debt bears interest at a variable market rate and the Company’s credit risk has not materially

2020.

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

changed since the inception of the agreement. The carrying value of the Company’s loans under the funding agreements with Österreichische Forschungsförderungsgesellschaft mbH (“FFG”) were recorded at fair value on the opening balance sheet of Arsanis as of the date of the Merger, and approximates the fair value of the loans at March 31, 2019. (See Note 3).

Segment Information

The Company manages its operations as a single operating segment for the purposes of assessing performance and making operating decisions. The Company’s focus is on the discovery, development and commercialization of novel therapeutics for the treatment of rare diseases.

Revenue Recognition

Effective January 1, 2018, the Company adopted ASC Topic 606, Revenue from Contracts with Customers (“ASC 606”), using the modified retrospective transition method. The modified retrospective method requires that the cumulative effect of initially applying ASC 606 be recognized as an adjustment to the opening balance of retained earnings or accumulated deficit of the annual period that includes the date of initial application. The Company did not have any arrangements that were in the scope of ASC 606 on January 1, 2018 and thus there was no impact to the condensed consolidated financial statements as a result of the adoption. This standard applies to all contracts with customers, except for contracts that are within the scope of other standards, such as collaboration arrangements and leases. Prior to completion of the Merger, Arsanis entered into a singleout-licensing agreement with Janssen Pharmaceuticals, Inc. (see Note 13) that was within the scope of ASC 606.

Research and Development Programs

Proceeds under the research and development incentive program from the Austrian government are recognized as other income in an amount equal to the qualifying expenses incurred in each period multiplied by the applicable reimbursement percentage. Incentive income recognized upon incurring qualifying expenses in advance of receipt of proceeds from research and development incentives is recorded in the consolidated balance sheet as research and development incentive receivables.

Research and Development Costs

Costs associated with internal research and development and external research and development services, including drug development and preclinical studies, are expensed as incurred. Research and development expenses include costs for salaries, employee benefits, subcontractors, facility-related expenses, depreciation and amortization, stock-based compensation, third-party license fees, laboratory supplies, and external costs of outside vendors engaged to conduct discovery, preclinical and clinical development activities and clinical trials as well as to manufacture clinical trial materials, and other costs. The Company recognizes external research and development costs based on an evaluation of the progress to completion of specific tasks using information provided to the Company by its service providers.

Nonrefundable advance payments for goods or services to be received in the future for use in research and development activities are recorded as prepaid expenses. Such prepaid expenses are recognized as an expense when the goods have been delivered or the related services have been performed, or when it is no longer expected that the goods will be delivered or the services rendered.

Upfront payments, milestone payments and annual maintenance fees under license agreements are expensed in the period in which they are incurred.

Patent Costs

All patent-related costs incurred in connection with filing and prosecuting patent applications are expensed as incurred due to the uncertainty about the recovery of the expenditure. Amounts incurred are classified as general and administrative expenses.

Debt Issuance Costs

Debt issuance costs consist of payments made to secure commitments under certain debt financing arrangements. These amounts are recognized as interest expense over the period of the financing arrangement using the effective interest method. If the financing arrangement is canceled or forfeited, or if the utility of the arrangement to the Company is otherwise compromised, these costs are recognized as interest expense immediately. The Company’s consolidated financial statements present debt issuance costs related to a recognized debt liability as a direct reduction from the carrying amount of that debt liability.

Stock-Based Compensation

The Company measures all stock-based awards granted to employees and directors based on the fair value on the date of the grant and recognizes compensation expense for those awards, net of estimated forfeitures, over the requisite service period, which is generally the vesting period of the respective award. The Company issues stock-based awards with only service-based vesting conditions and records the expense for these awards using the straight-line method. The Company has not issued any stock-based awards with performance-based vesting conditions.


X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

Effective January 1, 2019, the Company adopted ASU No.2018-07, Compensation—Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting (“ASU2018-07”), which expands the scope of Topic 718 to include share-based payment awards to nonemployees. As a result, stock-based awards granted to consultants andnon-employees are accounted for in the same manner as awards granted to employees and directors as described above. The impact of adoption this new guidance did not have a material impact on the Company’s consolidated financial statements. Prior to the adoption of ASU2018-07, for stock-based awards granted tonon-employee consultants, compensation expense was recognized over the period during which services were rendered by suchnon-employee consultants until completed. At the end of each financial reporting period prior to completion of the service, the fair value of these awards was remeasured using the then-current fair value of the Company’s common stock and updated assumption inputs in the Black-Scholes option-pricing model.

The Company classifies stock-based compensation expense in its consolidated statement of operations and comprehensive loss in the same manner in which the award recipient’s payroll costs are classified or in which the award recipient’s service payments are classified.

The Company recognizes compensation expense for only the portion of awards that are expected to vest. In developing a forfeiture rate estimate, the Company has considered its historical experience to estimatepre-vesting forfeitures for service-based awards. The impact of a forfeiture rate adjustment will be recognized in full in the period of adjustment, and if the actual forfeiture rate is materially different from the Company’s estimate, the Company may be required to record adjustments to stock-based compensation expense in future periods.

The fair value of each stock option grant is estimated on the date of grant using the Black-Scholes option-pricing model. Prior to March 13, 2019, the Company had been a private company and lacked company-specific historical and implied volatility information for its stock. Therefore, the Company estimates its expected stock price volatility based on the historical volatility of publicly traded peer companies and expects to continue to do so until it has adequate historical data regarding the volatility of its own traded stock price. The expected term of the Company’s stock options has been determined utilizing the “simplified” method for awards that qualify as “plain-vanilla” options. The expected term of stock options granted tonon-employee consultants is equal to the contractual term of the option award. The risk-free interest rate is determined by reference to the U.S. Treasury yield curve in effect at the time of grant of the award for time periods approximately equal to the expected term of the award. Expected dividend yield is based on the fact that the Company has never paid cash dividends on common stock and does not expect to pay any cash dividends in the foreseeable future.

Preferred Stock Warrant Liability

Prior to the Merger with Arsanis, the Company classified warrants for the purchase of shares of its convertible preferred stock (see Note 10) as a liability on its consolidated balance sheets as these warrants are freestanding financial instruments that may have required the Company to transfer assets upon exercise. The warrant liability, which consisted of warrants for the purchase of Series A and Series B convertible preferred stock, was initially recorded at fair value upon the date of issuance of each warrant and is subsequently remeasured to fair value at each reporting date. Changes in the fair value of the warrant liability are recognized as a component of other income (expense), net in the consolidated statement of operations and comprehensive loss. Concurrent with the closing of the Merger, all X4 preferred stock was converted to Arsanis common stock and the X4 preferred stock warrants converted to warrants for the purchase of Arsanis common stock. The Company assessed the features of the warrants and determined that they qualify for classification as permanent equity. Accordingly, the Company remeasured the warrants to fair value upon the closing of the Merger and reclassified the resulting warrant liability to additionalpaid-in capital. (see Note 10).

Derivative Liability

The Company’s license agreement with Genzyme Corporation (“Genzyme”) (see Note 13) contained a contingent payment obligation that required the Company to make a cash payment to Genzyme upon a change of control event of the Company. The contingent payment obligation met the definition of a derivative instrument as the contingent payment obligation was not clearly and closely related to its host instrument and was a cash-settled liability. Accordingly, the Company classified this derivative as a liability within other liabilities(non-current) on its condensed consolidated balance sheet. The derivative liability was initially recorded at fair value on the date of entering into the license agreement and was subsequently remeasured to fair value at each reporting date. Changes in the fair value of this derivative liability were recognized as a component of other income (expense), net in the condensed consolidated statement of operations and comprehensive loss. The Merger with Arsanis (see Note 1) qualified as a change of control event, as defined in the license agreement, but resulted in no payment being due to Genzyme under the license agreement. As a result, on March 13, 2019, the closing date of the Merger with Arsanis, the derivative liability was remeasured to fair value, which was $0, and subsequent changes in fair value will no longer be recognized in the consolidated statements of operations and comprehensive loss because the contingent payment obligation to Genzyme expired at that time.

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

In addition, the Company’s Hercules loan (see Note 7) contains a redemption feature that, upon an event of default, provides Hercules the option to accelerate and demand repayment of the debt, including a prepayment premium. The redemption feature meets the definition of a derivative instrument as the repayment of the debt contains a substantial premium, resulting in the redemption feature not being clearly and closely related to its host instrument. Accordingly, the Company classifies this derivative as a liability within other liabilities(non-current) on its condensed consolidated balance sheet. The derivative liability was initially recorded at fair value on the date of entering into the Hercules Loan Agreement and is subsequently remeasured to fair value at each reporting date. Changes in the fair value of this derivative liability are recognized as a component of other income (expense), net in the condensed consolidated statement of operations and comprehensive loss. Changes in the fair value of this derivative liability will continue to be recognized until all amounts outstanding under the Hercules Loan Agreement are repaid or until the Hercules Loan Agreement is terminated.

Comprehensive Loss

Comprehensive loss includes net loss as well as other changes in stockholders’ equity (deficit) that result from transactions and economic events other than those with stockholders. For the three months ended March 31, 2019, comprehensive loss included $23 of foreign currency translation gain adjustments.

Income Taxes

The Company accounts for income taxes using the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been recognized in the consolidated financial statements or in the Company’s tax returns. Deferred tax assets and liabilities are determined based on the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. Changes in deferred tax assets and liabilities are recorded in the provision for income taxes. The Company assesses the likelihood that its deferred tax assets will be recovered from future taxable income and, to the extent it believes, based upon the weight of available evidence, that it is more likely than not that all or a portion of the deferred tax assets will not be realized, a valuation allowance is established through a charge to income tax expense. Potential for recovery of deferred tax assets is evaluated by estimating the future taxable profits expected and considering prudent and feasible tax planning strategies.

The Company accounts for uncertainty in income taxes recognized in the consolidated financial statements by applying atwo-step process to determine the amount of tax benefit to be recognized. First, the tax position must be evaluated to determine the likelihood that it will be sustained upon external examination by the taxing authorities. If the tax position is deemedmore-likely-than-not to be sustained, the tax position is then assessed to determine the amount of benefit to recognize in the consolidated financial statements. The amount of the benefit that may be recognized is the largest amount that has a greater than 50% likelihood of being realized upon ultimate settlement. The provision for income taxes includes the effects of any resulting tax reserves, or unrecognized tax benefits, that are considered appropriate as well as the related net interest and penalties.

Net Income (Loss) per Share

The Company follows thetwo-class method when computing net income (loss) per share as the Company has issued shares that meet the definition of participating securities. Thetwo-class method determines net income (loss) per share for each class of common and participating securities according to dividends declared or accumulated and participation rights in undistributed earnings. Thetwo-class method requires income available to common stockholders for the period to be allocated between common and participating securities based upon their respective rights to receive dividends as if all income for the period had been distributed.

Basic net income (loss) per share attributable to common stockholders is computed by dividing the net income (loss) attributable to common stockholders by the weighted average number of common shares outstanding for the period. Diluted net income (loss) attributable to common stockholders is computed by adjusting net income (loss) attributable to common stockholders to reallocate undistributed earnings based on the potential impact of dilutive securities. Diluted net income (loss) per share attributable to common stockholders is computed by dividing the diluted net income (loss) attributable to common stockholders by the weighted average number of common shares outstanding for the period, including potential dilutive common shares. For purpose of this calculation, outstanding stock options, convertible preferred stock and warrants to purchase shares of convertible preferred stock are considered potential dilutive common shares.

The Company’s convertible preferred stock contractually entitles the holders of such shares to participate in dividends but does not contractually require the holders of such shares to participate in losses of the Company. Accordingly, in periods in which the Company reports a net loss attributable to common stockholders, such losses are not allocated to such participating securities. In periods in which the Company reports a net loss attributable to common stockholders, diluted net loss per share attributable to common stockholders is the same as basic net loss per share attributable to common stockholders, since dilutive common shares are not assumed to have been issued if their effect is anti-dilutive. The Company reported a net loss attributable to common stockholders for the three months ended March 31, 2019 and 2018.

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

Recently Adopted Accounting Pronouncements

In February 2016, the FASB issued ASUNo. 2016-02, Leases (Topic 842) (“ASU2016-02” or “ASC 842”)), which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e., lessees and lessors). The new standard requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase by the lessee. This classification will determine whether lease expense is recognized based on an effective interest method or on a straight-line basis over the term of the lease. A lessee is also required to record aright-of-use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. Leases with a term of 12 months or less may be accounted for similar to prior guidance for operating leases. The Company adopted the new leasing standard as of the required effective date of January 1, 2019 using a modified retrospective transition approach to be applied to leases existing as of, or entered into after, January 1, 2019. The adoption had no impact on accumulated deficit. The new lease standard provides a number of optional practical expedients in transition. The Company applied the package of practical expedients to leases that commenced prior to the effective date, whereby it will elect to not reassess the following: (i) whether any expired or existing contracts contain leases; (ii) the lease classification for any expired or existing leases; and (iii) initial direct costs for any existing leases. The Company also elected the short-term lease recognition exemption for all leases that qualify, where aright-of-use asset or lease liability will not be recognized for short-term leases. Upon the adoption of ASC 842, the Company recorded $2.5 million of operating lease liabilities and $2.0 million ofright-of-use assets on its consolidated balance. The adoption did not have a material impact on the Company’s statement of operations, statement of comprehensive loss or statement of cash flows.

In January 2017, the FASB issued ASUNo. 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. The new standard simplifies the subsequent measurement of goodwill by eliminating the second step of the goodwill impairment test. This ASU will be applied prospectively and is effective for annual or interim goodwill impairment tests in fiscal years beginning after December 15, 2019 with early adoption permitted. The Company has adopted this guidance on January 1, 2019 and will apply it to its annual impairment test, and any interim impairment tests during the year ending December 31, 2019.

In April 2017, the FASB issued ASU2017-08, Receivables – Nonrefundable Fees and Other Costs (“Subtopic310-20”). The new standard amends the amortization period for certain purchased callable debt securities held at a premium by shortening the amortization period for the premium to the earliest call date. Subtopic310-20 calls for a modified retrospective application under which a cumulative-effect adjustment will be made to retained earnings as of the beginning of the first reporting period in which the guidance is adopted. The new standard will be effective beginning January 1, 2019 and early adoption is permitted for public entities. The Company adopted this guidance, effective January 1, 2019, and its adoption had no impact on the Company’s financial position, results of operations or cash flows.

In July 2017, the FASB issued ASUNo. 2017-11,Earnings Per Share (Topic 260), Distinguishing Liabilities from Equity (Topic 480), Derivatives and Hedging (Topic 815) (Part I) Accounting for Certain Financial Instruments with Down Round Features (Part II) Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Noncontrolling Interests with a Scope Exception (“ASU2017-11”). Part I applies to entities that issue financial instruments such as warrants, convertible debt or convertible preferred stock that contain down-round features. Part II replaces the indefinite deferral for certain mandatorily redeemable noncontrolling interests and mandatorily redeemable financial instruments of nonpublic entities contained within ASC Topic 480 with a scope exception and does not impact the accounting for these mandatorily redeemable instruments. For public entities, ASU2017-11 is effective for annual reporting periods beginning after December 15, 2018, including interim periods within those fiscal years. The Company adopted ASU2017-11 as of the required effective date of January 1, 2019. The adoption of ASU2017-11 had no impact on the Company’s financial position, results of operations or cash flows.

In June 2018, the FASB issued ASUNo. 2018-07,Compensation—Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting(“ASU2018-07”). These amendments expand the scope of Topic 718, Compensation—Stock Compensation (which previously only included share-based payments to employees) to include share-based payments issued tonon-employees for goods or services. Consequently, the accounting for share-based payments tonon-employees and employees will be substantially aligned. The ASU supersedesSubtopic 505-50, Equity—Equity-Based Payments toNon-Employees. The Company adopted ASU2018-07 on January 1, 2019. The adoption of this standard had no impact on the Company’s financial statements.

Recently Issued Accounting Pronouncements

In August 2018, the FASBFinancial Accounting Standards Board (“FASB”) issued ASUNo. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value MeasurementAccounting Standards Update (“ASU2018-13”ASU”), which removes, adds 2018-15, Intangibles-Goodwill and modifies certain disclosure requirements for fair value measurements in Topic 820. The Company will no longer be required to disclose the amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy as well as the valuation processes of Level 3 fair value

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

measurements. However, the Company will be required to additionally disclose the changes in unrealized gains and losses included in other comprehensive income for recurring Level 3 fair value measurements and the range and weighted average of assumptions used to develop significant unobservable inputs for Level 3 fair value measurements. ASU2018-13 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. The amendments relating to additional disclosure requirements will be applied prospectively for only the most recent interim or annual period presented in the initial year of adoption. All other amendments will be applied retrospectively to all periods presented upon their effective date. The Company is currently evaluating the impact that the adoption of ASU2018-13 will have on its consolidated financial statements.

In August 2018, the FASB issued ASU2018-15, Intangibles-Goodwill andOther-Internal-Use Software (Subtopic350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract, (“(“ASU2018-15”). The amendments in this update align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtaininternal-use software (and hosting arrangements that include aninternal-use software license). The accounting for the service element of a hosting arrangement that is a service contract is not affected by the amendments in this update. The new standard will bewas effective beginning January 1, 2020 and earlywas adopted by the Company on that date. The adoption is permitted. The amendmentsof ASU 2018-15 did not have an impact on the Company's consolidated financial statements and related disclosures.

In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”), which removes, adds and modifies certain
disclosure requirements for fair value measurements in this update should be applied either retrospectively or prospectively to all implementation costs incurred after the date of adoption.Topic 820. The Company will no longer be required to disclose the
amount of and reasons for transfers between Level 1 and Level 2 of the fair value hierarchy as well as the valuation processes of Level 3 fair value measurements. The Company will be required to provide additional disclosure related to the changes in
unrealized gains and losses included in other comprehensive loss for recurring Level 3 fair value measurements and the range and weighted average of assumptions used to develop significant unobservable inputs for Level 3 fair value measurements. ASU 2018-13 is currently evaluatingeffective for the Company on January 1, 2020 and was adopted on that date. The adoption of ASU 2018-13 did not have a significant impact on the Company’s consolidated financial statements and related disclosures.


Recently Issued Accounting Standards Not Yet Adopted
In December 2019, the FASB issued ASU 2019-12, Simplifying the Accounting for Income Taxes (“ASU 2019-12”). ASU
2019-12 simplifies the accounting for income taxes, including the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. ASU 2019-12 is effective for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. The Company does not anticipate that the adoption of ASU2018-15 2019-12 will have a material impact on its consolidated financial statements.

3.

Merger Accounting

Basedstatements and related disclosures.

In June 2016, the FASB issued ASU 2016-13, Credit Losses (Topic 326) Measurement of Credit Losses on Financial Instruments (“ASU 2016-13"), as amended. ASU 2016-13 requires that financial assets measured at amortized cost, such as trade receivables, be presented net of expected credit losses, which may be estimated based on relevant information such as historical experience, current conditions, and future expectation for each pool of similar financial asset. The new guidance requires enhanced disclosures related to trade receivables and associated credit losses. In accordance with ASU 2019-10, Financial Instruments-Credit Losses (Topic 326), Derivative and Hedging (Topic 815), and Leases (Topic 842)- Effective Dates, as the Exchange RatioCompany meets the definition of 0.5702, immediately followinga "smaller reporting company", the Merger, former Arsanis stockholders, Arsanis option holdersCompany has elected to defer the adoption of ASU 2016-13 until January 1, 2023. The Company expects that the adoption of ASU 2016-13 may accelerate the timing and other persons holding securities or other rights directly or indirectly convertible, exercisable or exchangeable for Arsanis common stock owned approximately 31.3%could increase the level of credit loss expense in the outstanding capital stockconsolidated statement of operations and will likely require an increased level of disclosure in the combined organization on a fully diluted basis, and former X4 stockholders, holders of options or warrants to acquire X4 capital stock and other persons holding securities and other rights directly or indirectly convertible, exercisable or exchangeable for X4 capital stock owned approximately 68.7% of the outstanding capital stock of the combined organization on a fully diluted basis. At the closing of the Merger, all shares of X4 common stock and X4 preferred stock then outstanding were exchanged for Arsanis common stock.

In addition, pursuantnotes to the terms of the Merger Agreement, the Company, for accounting purposes, assumed all outstanding stock options to purchase shares of Arsanis common stock at the closing of the Merger. At the closing of the Merger, such stock options became options to purchase an aggregate of 271,230 sharesconsolidated financial statements.


3. License, Collaboration and Funding Agreements
There were no material modifications of the Company’s common stock after giving effect to the Reverse Stock Split.

The total purchase price paid in the Merger has been allocated to the tangible and intangible assets acquired and liabilities assumed of Arsanis based on their fair values as of the completion of the Merger, with the excess allocated to goodwill. The following summarizes the preliminary estimate of the purchase price paid in the Merger:

Number of shares of the combined organization owned by Arsanis stockholders (1)

   2,440,582 

Multiplied by the fair value per share of Arsanis common stock (2)

  $18.66 
  

 

 

 

Fair value of consideration issued it effect the Merger

  $45,541 

Fair value of replacement awards held by former employees, board of directors and consultants of Arsanis that were vested as of the Merger.

  $817 
  

 

 

 

Purchase price:

  $46,358 
  

 

 

 

(1)

The number of shares of 2,440,582 represents the historical 14,643,737 shares of Arsanis common stock outstanding immediately prior to the closing of the Merger, adjusted for the Reverse Stock Split.

(2)

Based on the last reported sale price of Arsanis common stock on the Nasdaq Global Market on March 13, 2019, the closing date of the Merger, and gives effect to the Reverse Stock Split.

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

The following summarizes the allocation of the purchase price to the net tangible and intangible assets acquired:

Cash and cash equivalents and restricted cash

  $26,406 

Other current assets

   2,147 

Property and equipment, net

   68 

IPR&D indefinite-lived intangible assets

   4,900 

Other assets,non-current

   879 

Current liabilities

   (5,221

Loans payable

   (8,713

Other liabilities,non-current

   (1,515

Goodwill

   27,407 
  

 

 

 

Purchase price

  $    46,358 
  

 

 

 

The goodwill of $27,407 is not tax deductible and represents the excess of the consideration paid over the fair value of assets acquired and liabilities assumed. Goodwill is mainly attributable to the enhanced value of the combined company, as reflected in the increase in market value of the Arsanis common shares following the announcement of the Merger with X4. The Company incurred costs directly related to the Merger of approximately $1 million forlicense, collaboration or funding agreements during the three months ended March 31, 2019.

2020.

Research and Development Incentive Program
The preliminary allocationCompany participates in a research and development incentive program provided by the Austrian government whereby the Company is entitled to reimbursement by the Austrian government for a percentage of qualifying research and development expenses incurred by the purchase priceCompany’s subsidiary in Austria. Under the program, the reimbursement rate for qualifying research and development expenses incurred by the Company through its subsidiary in Austria is 14% for the Mergeryears ended December 31, 2020 and 2019. As of March 31, 2020, the amount due under the program is $0.4 million, which amount was based on estimates ofincluded in research and development incentive receivable in the fair value ofcondensed consolidated balance sheet. During the net assets acquired and is subject to adjustment upon finalization of the valuation of the acquired intangible assets, property, plant and equipment,right-of-use assets, lease obligations, fair value of debt and any related deferred taxes. Measurements of these items inherently require significant estimates and assumptions.

The following supplemental unaudited pro forma information presents the Company’s financial results as if the acquisition of Arsanis had occurred on January 1, 2018:

   Three Months Ended
March 31,
 
   2019   2018 
   (unaudited) 

Revenue

  $0   $0 

Net loss

  $(16,258  $(20,235

The above unaudited pro forma information was determined based on the historical GAAP results ofthree months ended

12

X4 PHARMACEUTICALS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)
March 31, 2020, the Company and Arsanis. The unaudited pro forma consolidated results are not necessarily indicativerecorded $86 thousand of what the Company’s consolidated results of operations would have been if the acquisition was completed on January 1, 2018. The unaudited pro forma consolidated net loss includes pro forma adjustments primarily relating to the reclassification of transaction costs and severance payments directlyincome related to the closingprogram within the condensed consolidated statement of the Merger of $2.7 million fromoperations as “other income”. No amounts were recorded during the three months ended March 31, 2019.
Abbisko Agreement
In July 2019, the Company entered into a license agreement, (the “Abbisko Agreement”) with Abbisko Therapeutics Co., Ltd., (“Abbisko”). Under the terms of the Abbisko Agreement, the Company granted Abbisko the exclusive right to develop, manufacture and commercialize mavorixafor in mainland China, Taiwan, Hong Kong and Macau, the (“Abbisko Territory”). The agreement provides Abbisko with the exclusive rights in the Abbisko Territory to develop and commercialize mavorixafor in combination with checkpoint inhibitors or other agents in multiple oncology indications. The Company retains the full rest-of-world rights to develop and commercialize mavorixafor outside of the Abbisko Territory for all indications and the Company has the ability to utilize data generated pursuant to the three months endedAbbisko collaboration for rest-of-world development. Assuming mavorixafor is developed by Abbisko in six indications, the Company would be entitled to milestone payments of up to $208 million, which will vary based on the ultimate sales, if any, of the approved licensed products. In addition, upon commercialization of mavorixafor in the Abbisko Territory, the Company is eligible to receive a tiered royalty, with a percentage range in the low double-digits, on net sales of approved licensed products. Abbisko is obligated to use commercially reasonable efforts to develop and commercialize mavorixafor in the Abbisko Territory.
Following the closing of a qualified financing (as defined in the Abbisko Agreement), Abbisko is required pay the Company a one-time, non-refundable, non-creditable financial milestone payment of $3.0 million. Abbisko achieved such qualified financing in March 2020 and, as a result, the Company was eligible to receive the milestone payment, which was received by the Company in April 2020. The Company is also eligible to receive potential development and regulatory milestone payments, which vary based on the number of indications developed, and potential commercial milestone payments based on annual net sales of mavorixafor-based licensed products.
Upon entering into the Abbisko Agreement, the Company evaluated the agreement under Accounting Standards Codification Topic 606 (“ASC 606”) and determined the agreement contained a single performance obligation related to the exclusive license to develop and commercialize mavorixafor and the transfer of know-how that was satisfied at the inception of the arrangement. The transaction price related to the transfer of the license and know-how was fully constrained at the inception of the arrangement and the Company ascribed no transaction price to the development, regulatory and commercial milestones under the “most-likely-amount” method. The Company concluded that any consideration related to the initial transfer of the license and know-how will be recognized when it is probable that Abbisko will achieve the related financial milestone and other operational milestones. As a result of Abbisko’s achievement of the qualified financing, the Company reversed the constraint related to this milestone and recognized $3.0 million of license revenue and an associated accounts receivable balance.
As of March 31, 2018.

4.

Fair Value of Financial Assets and Liabilities

2020, Abbisko has not completed any additional development or regulatory operational milestones, other than as noted above and, therefore, the Company continues to fully constrain the value of associated milestone payments. The Company will continue to re-evaluate the transaction price and associated constrained amounts in each reporting period and as uncertain events are resolved or other changes in circumstances occur.


4. Fair Value of Financial Assets and Liabilities
The following tables present information about the Company’s financial assets and liabilities measured at fair value on a recurring basis and indicate the level of the fair value hierarchy used to determine such fair values:

   Fair Value Measurements as of March 31, 2019 Using: 
       Level 1           Level 2           Level 3             Total       

Assets:

        

Cash equivalents—money market funds

  $        —     $22,299   $        —     $22,299 
  

 

 

   

 

 

   

 

 

   

 

 

 
  $—     $22,299   $—     $22,299 
  

 

 

   

 

 

   

 

 

   

 

 

 

Liabilities:

        

Preferred stock warrant liability

  $—     $—     $—     $—   

Derivative liability

   —      —      18   $18 
  

 

 

   

 

 

   

 

 

   

 

 

 
  $—     $—     $18   $18 
  

 

 

   

 

 

   

 

 

   

 

 

 

Fair Value Measurements as of March 31, 2020 Using:
(in thousands)Level 1Level 2Level 3Total
Assets:
Cash equivalents—money market funds$48,770  $6,417  $—  $55,187  
$48,770  $6,417  $—  $55,187  
Liabilities:  None


13

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALSFINANCIAL STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

   Fair Value Measurements as of December 31, 2018 Using: 
       Level 1           Level 2           Level 3             Total       

Assets:

        

Cash equivalents—money market fund

  $—     $8,134   $—     $8,134 
  

 

 

   

 

 

   

 

 

   

 

 

 
  $—     $8,134   $—     $8,134 
  

 

 

   

 

 

   

 

 

   

 

 

 

Liabilities:

        

Preferred stock warrant liability

  $—     $—     $4,947   $4,947 

Derivative liability

   —      —      201   $201 
  

 

 

   

 

 

   

 

 

   

 

 

 
  $—     $—     $5,148   $5,148 
  

 

 

   

 

 

   

 

 

   

 

 

 

As of March 31, 2019 and December 31, 2018, there were no transfers between Level 1, Level 2 and Level 3.

Fair Value Measurements as of December 31, 2019 Using:
(in thousands)Level 1Level 2Level 3Total
Assets:
Cash equivalents—money market funds$23,638  $39,999  $—  $63,637  
$23,638  $39,999  $—  $63,637  
Liabilities: None
The Company’s cash equivalents consisted of a money market fundfunds invested in U.S. Treasury securities. The money market fund wasfunds were valued based on reported market pricing for the identical assets, which represents a Level 1 measurement, or by using inputs observable in active markets for similar securities, which represents a Level 2 measurementmeasurement.

During the three months ended March 31, 2020, the Company refinanced its Amended and Restated Loan and Security Agreement (as defined in the fair value hierarchy.

Valuation of Preferred Stock Warrant Liabilities

Note 7) with Hercules Capital Inc. (“Hercules”). The preferred stock warrant liability in the table above consistsdebt refinancing was deemed to be an extinguishment of the fair values of (i) warrants to purchase shares of Series A convertible preferred stock that were issuedJune 2019 Amended and Restated Loan and Security Agreement (the “previous debt”) in 2015 and shares of Series B convertible preferred stock that were issued in 2017 and 2018 in connection withexchange for the Company’s Series A and Series B convertible preferred stock financings, respectively (see Notes 10), (ii) warrants to purchase shares of Series A convertible preferred stock that were issued in 2016 in connection with the Company’s entering into a loan and security agreement with Silicon Valley Bank (see Note 7) and (iii) warrants to purchase shares of Series B convertible preferred stock that were issued or were issuable in 2018 in connection with the Company’s entering into the HerculesAmended Loan Agreement (see(the “new debt”) as further described in Note 7).7. The liability associated withloss on extinguishment was calculated as the warrants was recorded at fair value ondifference between the dates the warrants were issued and exercisable and was subsequently remeasured to fair value at each reporting date through December 31, 2018. Upon the closingcarrying amount of the Merger, all X4 preferred stock warrants were converted to warrants for Company’s common stockprevious debt and as a result, the warrants were adjusted to fair value and reclassified to permanent equity. The aggregate fair value of the warrant liability was determined based on significant inputs not observable in the market, which represents a Level 3 measurement within the fair value hierarchy.

The Company used various valuation methods, including the Monte Carlo method, the option-pricing method and the hybrid method (which is a combination of an option-pricing method and a probability-weighted expected return method), all of which incorporate assumptions and estimates, to value the preferred stock warrants. Estimates and assumptions impacting the fair value measurement include the fair value per share of the underlying shares of the Company’s Series A and Series B convertible preferred stock, risk free interest rate, expected dividend yield, expected volatility of the price of the underlying preferred stock, and either the remaining contractual term of the warrants (except for warrants that would be automatically exercised upon an initial public offering, in which case the remaining estimated term to automatic exercise was used). The most significant assumption in the Monte Carlo method, the option-pricing method and the hybrid method impacting the fair value of the preferred stock warrantsnew debt, which is a non-recurring Level 3 measure. The fair value of the new debt was calculated based on the cash flows of the new debt, including end-of-term payments, interest payments, principal payments and lender fees, discounted to present value using the appropriate market rate. The market rate is a significant unobservable input. The Company developed a range of market rates in reference to the Company's recent borrowing activities with this lender, which are deemed to be reflective of the market rate. The Company considered a range from 10.5% to 12.5% and determined that 11.5% represented a reasonable rate for purposes of determining the fair value of the Company’s convertible preferred stock as of each remeasurement date. The Company determines the fair value per share of the underlying preferred stock by taking into consideration the most recent sales of its convertible preferred stock, results obtained from third-party valuations and additional factors that are deemed relevant. As of December 31, 2018, the fair value of the Series A convertible preferred stock was $1.70 per share the fair value of the Series B convertible preferred stock was $1.86 per share. There were no warrants for the purchase of convertible preferred shares as of March 31, 2019 as all such warrants were converted to warrants for the purchase of common stock upon the Merger. The Company has been a private company prior to the Merger and lacks company-specific historical and implied volatility information of its stock. Therefore, it estimates its expected stock volatility based on the historical volatility of publicly traded peer companies for a term equal to the estimated remaining term of the warrants. The risk-free interest rate is determined by reference to the U.S. Treasury yield curve for time periods approximately equal to the estimated remaining term of the warrants. The Company estimated a 0% expected dividend yield based on the fact that the Company has never paid or declared dividends and does not intend to do so in the foreseeable future.

Valuation of Derivative Liability

The fair value of the derivative liability recognized in connection with the Company’s July 2014 license agreement with Genzyme (see Note 13) was determined based on significant inputs not observable in the market, which represents a Level 3 measurement within the fair value hierarchy. The fair value of this derivative liability is reported within other liabilities on the consolidated balance

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

sheets. The fair value of this derivative liability was estimated by the Company at each reporting date based, in part, on the results of third-party valuations, which were prepared using the option-pricing method or the hybrid method, each of which considered as inputs the type, timing and probability of occurrence of a change of control event, the potential amount of the payment under potential exit scenarios, the fair value per share of the underlying common stock and the risk-adjusted discount rate. As of December 31, 2018, the fair value of this derivative liability was $183. The Merger with Arsanis (see Note 1) qualified as a change of control event, as defined in the license agreement, but results in no payment being due to Genzyme under the license agreement. As a result, on March 13, 2019, the closing date of the Merger with Arsanis, this derivative liability was remeasured to fair value,new debt, which was $0,$25.3 million.


5. Property and subsequent changes in fair value will no longer be recognized in the consolidated statements of operations and comprehensive loss because the contingent payment obligation to Genzyme expired at that time.

The fair value of the derivative liability recognized in connection with the Hercules Loan Agreement (see Note 7) was determined based on significant inputs not observable in the market, which represents a Level 3 measurement within the fair value hierarchy. The fair value of this derivative liability is reported within other liabilities on the consolidated balance sheets. The fair value of this derivative liability was estimated by the Company at each reporting date based, in part, on the results of third-party valuations, which were prepared based on a discounted cash flow model that considered the timing and probability of occurrence of a redemption upon an event of default, the potential amount of prepayment upon an event of default and the risk-adjusted discount rate. As of March 31, 2019 and December 31, 2018, the fair value of this derivative liability was immaterial.

The following table provides a roll-forward of the aggregate fair values of the Company’s warrant liability, derivative liability and preferred stock repurchase liability, for which fair values are determined using Level 3 inputs:

   Preferred Stock
Warrant
Liability
   Derivative
Liability
 

Balance as of December 31, 2018

  $4,947   $201 

Change in fair value

   288    (183

Conversion of convertible preferred stock warrant into common stock warrant in connection with Merger

   (5,235   —   
  

 

 

   

 

 

 

Balance as of March 31, 2019

  $—     $18 
  

 

 

   

 

 

 

5.

Property and Equipment, Net

Equipment, Net

Property and equipment, net consisted of the following:

   March 31,
2019
   December 31,
2018
 

Leasehold improvements

  $    299   $    299 

Furniture and fixtures

   53    53 

Computer equipment

   19    56 

Software

   9    9 

Lab equipment

   67    —   
  

 

 

   

 

 

 
   448    417 

Less: Accumulated depreciation and amortization

   (177   (176
  

 

 

   

 

 

 
  $271   $241 
  

 

 

   

 

 

 

(in thousands)March 31,
2020
December 31, 2019
Leasehold improvements$299  $299  
Furniture and fixtures139  139  
Computer equipment37  37  
Software33  33  
Lab equipment267  159  
775  667  
Less: Accumulated depreciation and amortization(300) (264) 
$475  $403  
Depreciation and amortization expense related to property and equipment was $36 thousand and $20 and $26thousand for the three months ended March 31, 2020 and 2019 and 2018, respectively.

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

6.

Accrued Expenses


6. Accrued Expenses
Accrued expenses consisted of the following:

      March 31,   
2019
   December 31,
2018
 

Accrued employee compensation and benefits

  $    1,239    924 

Accrued external research and development expenses

   819    754 

Accrued professional fees

   1,850    1,324 

Deferred rent, current portion

   —      93 

Other

   271    156 
  

 

 

   

 

 

 
  $4,179   $3,251 
  

 

 

   

 

 

 

7.

Long-Term Debt

following

14

X4 PHARMACEUTICALS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)
(in thousands)March 31,
2020
December 31,
2019
Accrued employee compensation and benefits$2,289  2,916  
Accrued external research and development expenses1,287  1,977  
Accrued professional fees1,160  1,347  
Accrued lease construction costs682  —  
Other368  221  
$5,786  $6,461  

7. Long-Term Debt
Long-term debt consisted of the following:

      March 31,   
2019
   December 31,
2018
 

Principal amount of long-term debt

  $19,546   $10,000 

Less: Current portion of long-term debt

   (5,298   (1,687
  

 

 

   

 

 

 

Long-term debt, net of current portion

   14,248    8,313 

Debt discount, net of accretion

   (1,019   (226

Cumulative accretion of final payment due at maturity

   136    58 
  

 

 

   

 

 

 

Long-term debt, including accretion, net of current portion

  $13,365   $8,145 
  

 

 

   

 

 

 

SVB Loan Agreement

In October 2016, the Company entered into a loan and security agreement with Silicon Valley Bank (“SVB”), which the Company refers to as the SVB Loan Agreement, pursuant to which SVB made certain term loans available to the Company. The SVB Loan Agreement provided for a term loan of up to $6,000, which was borrowed by the Company in June 2017. Borrowings under the SVB Loan Agreement bore interest at a variable rate equal to 5.5% plus the greater of (i) 3.5% or (ii) The Wall Street Journal prime rate. In October 2018, in connection with entering into the

(in thousands)March 31,
2020
December 31,
2019
Principal amount of long-term debt$25,000  $20,000  
Debt discount, net of accretion238  (317) 
Cumulative accretion of final payment due at maturity28  414  
Long-term debt, including accretion$25,266  $20,097  
Hercules Loan Agreement, the Company terminated the SVB Loan Agreement and repaid all amounts due under the SVB Loan Agreement, including unpaid principal of $4,333, a final payment of $270, a prepayment premium of $87 and accrued interest of $23. The Company accounted for the repayment of amounts as an extinguishment of the SVB Loan Agreement and recognized a loss on extinguishment of debt of $229 within other income (expense), net in the consolidated statement of operations and comprehensive loss. The loss on extinguishment of debt was calculated as the difference between the reacquisition price of the borrowings under the SVB Loan Agreement of $4,713 and the carrying value of the debt under the SVB Loan Agreement of $4,484. As of October 19, 2018, the date of repayment of all borrowings under the SVB Loan Agreement, the interest rate applicable to borrowings under the SVB Loan Agreement was 10.75%.

Hercules Loan Agreement

Agreements

In October 2018, the Company entered into the Hercules Loan and Security Agreement, which provided for aggregate borrowings of up to $13,000, consisting of (i) a term loan of up to $8,000, which was available upon entering into the agreement, (ii) subject to specified financing conditions, an additional term loan of up to $2,000, available for borrowing from January 1,as amended in December 2019 to March 31, 2019, and (iii) subject to specified financing conditions and the receipt of the second tranche $2,000 term loan described above, an additional term loan of up to $3,000, available for borrowing until March 31, 2019. In October 2018,(the “Hercules Loan Agreement”), under which the Company borrowed $8,000an aggregate of $10.0 million under the Hercules Loan Agreement.

a term loan. In December 2018,June 2019, the Company entered into the First Amendment torefinanced the Hercules Loan Agreement and entered into an Amended and Restated Loan and Security Agreement (the “First Amendment”), which amended the available borrowing dates of the second tranche from between January 1, 2019“Amended and March 31, 2019 to between December 11, 2018Restated Loan Agreement”) with Hercules. The Amended and December 14, 2018 and amended the term loan maturity date to November 1, 2021. In December 2018, the Company borrowed the additional $2,000 provided under the HerculesRestated Loan Agreement as amended by the First Amendment.

In March 2019, the conditions necessaryprovided for borrowing the remaining $3,000aggregate maximum borrowings of $35.0 million, under the Hercules Loan Agreement were not metwhich $20.0 million was borrowed, including $10.0 million that was previously outstanding and the borrowing capacity expired at that time.

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts$10.0 million in thousands, except share and per share amounts)

(Unaudited)

new borrowings. Borrowings under the Hercules LoanAmended and Restated Agreement bear interest at variable rates, with the first tranche bearing interest at a variable rate equal to the greater of (i) 9.5% or (ii) 9.5% plus The Wall Street Journal prime rate minus 5.25%, the second tranche bearing interest at a variable rate, subject to completion of specified financing conditions, equal to either (A) the greater of (i) 9.5% or (ii) 9.5% plus The Wall Street Journal prime rate minus 5.25% or (B) the greater of (i) 8.75% or (ii) 8.75% plus The Wall Street Journal prime rate minus 5.25%, and the third tranche bearingaccrued interest at a variable rate equal to the greater of (i) 8.75% or (ii) 8.75% plusThe Wall Street Journal prime rate minus 5.25%plus 2.75%. In an event of default as defined, and until such event is no longer continuing, the interest rate applicable to borrowings under the Hercules LoanAmended and Restated Agreement would be increased by 4.0%. As


On March 13, 2020, the Company entered into a First Amendment to the Amended and Restated Loan and Security Agreement dated June 27, 2019 (collectively the “Amended Loan Agreement”) with Hercules, which provides for aggregate maximum borrowings of up to $50.0 million. The Amended Loan Agreement provides for (i) a term loan of $25.0 million, including the $20.0 million previously outstanding under the Amended and Restated Loan Agreement, and an additional $5.0 million drawn at the closing of the first amendment on March 31, 201913, 2020, (ii) subject to the achievement of certain performance milestones and other conditions, a right of the Company to request that Hercules make additional term loan advances in an aggregate amount of up to $7.5 million through June 30, 2021, (iii) subject to the achievement of certain performance milestones and conditions, a right of the Company to request that Hercules make additional term loan advances in an aggregate amount of up to $7.5 million through June 30, 2022 and (iv) subject to Hercules investment committee’s sole discretion, a right of the Company to request that Hercules make additional term loan advances in an aggregate amount of up to $10.0 million through December 31, 2018,2022.

Borrowings under the Amended Loan Agreement bear interest at a variable rate equal to a per annum rate of interest equal to the greater of either (i) 3.75% plus the prime rate as reported in The Wall Street Journal, and (ii) 8.75%. In an event of default, as defined in the Amended Loan Agreement, and until such event is no longer continuing, the interest rate applicable to borrowings under the HerculesAmended Loan Agreement was 9.80% and 9.75%would be increased by 4.0%.


Borrowings under the HerculesAmended Loan Agreement are repayable in monthly interest-only payments through August 2019, or a later date upon achievement of specified conditions,January 1, 2022, and in equal monthly payments of principal and accrued interest from September 2019February 1, 2022 until the maturity date of the loan, which is November 2021. At the Company’s option, theJuly 1, 2023. The Company may prepay all, but not less than all, of the outstanding borrowings, subject to a prepayment premium of up to 2.0%, 1.0% or 0.5% of the principal amount outstanding as of the date of repayment. The Herculesrepayment, in each case depending on when such repayment is made. In addition, the Amended Loan Agreement also provides for a final payment,payments of (i) $0.8 million payable upon maturitythe earlier of November 1, 2021 or the repayment in full of all obligations under the agreement, of up to $953. An aggregate final payment of $794 payable in connection with the $8,000 term loanAmended Loan
15

X4 PHARMACEUTICALS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)
Agreement, and the $2,000 term loan is being accreted to interest expense to increase the carrying value(ii) 4.0% of the debt overaggregate principal amount of all Term Loan Advances drawn under the termAmended Loan Agreement, payable upon the earlier of the loan usingmaturity of the effective interest method.

In addition, the HerculesAmended Loan Agreement contains a redemption feature that, upon an event of default, provides Hercules the option to accelerate and demand repayment of the debt, including a prepayment premium. The Company concluded that the redemption feature meets the definition of a derivative instrument asor the repayment in full of all obligations under the debt contains a substantial premium, resulting in the redemption feature not being clearly and closely related to the host instrument. The Company recorded the issuance-date fair value of the derivative liability of $18 as a debt discount and as a derivative liability on its consolidated balance sheet.

Amended Loan Agreement.


Borrowings under the HerculesAmended Loan Agreement are collateralized by substantially all of the Company’s personal property and other assets including itsexcept for their intellectual property until a specified financing condition is met.(but including rights to payment and proceeds from the sale, licensing or disposition of the intellectual property). Under the HerculesAmended Loan Agreement, the Company has agreed to affirmative and negative covenants to which the Companyit will remain subject until maturity or repayment of the loan in full. The covenants include, maintaining a minimum liquiditywithout limitation:

(a) Effective upon the date the outstanding principal amount of the lesser of (i) 125% of outstanding borrowingsadvances under the HerculesAmended Loan Agreement and (ii) 100% ofexceeds $25.0 million, the Company’sCompany at all times thereafter must maintain cash and cash equivalents in an account or accounts in which Hercules has a first priority security interest, as well as restrictionsin an aggregate amount greater than or equal to the greater of (i) $30.0 million or (ii) 6 multiplied by a metric based on prior months’ cash expenditures (“RML”); provided, however, that from and after the Company’s achievement of certain performance milestones, the required level shall be reduced to the greater of (x) $20.0 million, or (y) 3 multiplied by the current RML; and provided further, that subject to the achievement of certain milestones, this covenant shall be extinguished.

(b) Restrictions on the Company’s ability to incur additional indebtedness, pay dividends, encumber its intellectual property, or engage in certain fundamental business transactions, such as mergers or acquisitions of other businesses. Obligationsbusinesses, with certain exceptions.

The Company’s obligations under the HerculesAmended Loan Agreement are subject to acceleration upon the occurrence of specified events of default, including payment default, insolvency and a material adverse change in the Company’sBorrower’s business, operations or financial or other condition.

In connection with entering intoaddition, under the Amended Loan Agreement, Hercules has the right to participate, in a cumulative amount of up to $3.0 million in the aggregate, of which $1.0 million has already been exercised, and subject to exceptions as provided in the Amended Loan Agreement, in October 2018, the Company issued to Hercules warrants for the purchase of 210,638 shares of Series B convertible preferred stock at an exercise price of $1.88 per share. These warrants were immediately exercisable and expire in October 2028.

In connection with entering into the First Amendment in December 2018, the Company agreed to issue to Hercules warrants for the purchase of a specified number of shares of convertible preferred stock or, if issued following the Merger with Arsanis, a specified number of shares of common stock of the combined organization, at an aggregate exercise price of $99. The warrants were to be issued at the earliest of (i) June 30, 2019, (ii) the earlier to occur of (a) the date the Company prepays the outstanding borrowings or (b) the date the outstanding borrowings become due and payable, or (iii) on or before the fifth business day following the closing of or the announcement of the terminationany future offering of the Company’s Merger with Arsanis. equity securities for cash that is solely for financing purposes and is broadly marketed to multiple investors.

The number of shares of convertible preferred stock issuable upon exercise of these warrantsCompany concluded that the previous debt under the Amended and Restated Loan Agreement was determined to be 52,659 shares, calculated by dividing $99 byextinguished based on the $1.88 price per share paid by investors that purchased shares of Series B convertible preferred stockdifference in September 2018 (see Note 11). On March 18, 2019, as a resultthe cash flows of the closingprevious and new debt. Accordingly, the difference between the carrying amount of the Merger with Arsanis on March 13, 2019,previous debt, including the Company issued to Hercules warrants for the purchase of 5,000 shares of common stock of the combined organization at an exercise price of $19.80 per share, each of which reflected the share Exchange Ratio of1-for-0.5702 applied in the Merger as well as the Reverse Stock Split effected by the combined organization on March 13, 2019.

On October 19, 2018 and December 11, 2018, the dates the Company entered into the Hercules Loan Agreement and the First Amendment, respectively, the Company recorded the aggregate initial fair value of the warrants of $132 as a preferred stock warrant liability, with a corresponding amount recorded as aunamortized debt discount, on the Company’s consolidated balance sheet. As of March 13, 2019 and December 31, 2018, the fair value of the warrants was $326 and $282, respectively. Uponnew debt under the closing of the Merger, the warrants were converted to warrants for common stock and are no longer adjusted to fair value.

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

In connection with entering into the HerculesAmended Loan Agreement and the First Amendment, the Company also paid Hercules $92 of upfront fees, including facility, due diligence and legal fees associated with entering into the agreement, which were alsowas recorded as a $162 thousand loss on extinguishment of debt discount. Thefor the three months ended March 31, 2020. Legal and consulting fees paid to third parties directly related to the new debt discount is reflected as a reduction of the carrying value of long-term debt on the Company’s consolidated balance sheethave been deferred and is beingwill be amortized to interest expense over the termlife of the loannew debt arrangement using the effective interest method.

The Company recognized aggregate interest expense under theits loan agreements with Hercules Loan Agreement of $584 thousand and $357 and $0thousand during the three months ended March 31, 2020 and 2019, respectively. Interest expense includes $118 thousand and 2018,$113 thousand for the three months ended March 31, 2020 and 2019, respectively, which includednon-cash interest expense of $113 related to the accretion of the debt discount and the final payment. As of March 31, 2019 and December 31, 2018, the unamortized debt discount was $182 and $226, respectively. The Company’s annual effective interest rate of the HerculesAmended Loan Agreement as of March 31, 2019 and December 31, 2018 was approximately 14.2%, respectively.

2020 is 10.7%. There were no0 principal payments due or paid under the loan agreements with Hercules Loan Agreement during the three months ended March 31, 2019. Principal payments begin in September 2019.

FFG Loan Agreement

Between September 2011 and March 2017, Arsanis GmbH, a subsidiary of Arsanis, entered into a series of funding agreements with Österreichische Forschungsförderungsgesellschaft mbH (“FFG”) that provided for loans and grants to fund qualifying research and development expenditures of Arsanis GmbH on aproject-by-project basis, as approved by FFG. Amounts due under the FFG loans bear interest at rates ranging from 0.75% to 2.0% per annum. 2020.

As of March 31, 2019, giving effect to the Settlement Agreement (as defined below), the loans matured at various dates between March 31, 2019 and March 2021. Interest on amounts due under the loans is payable semi-annually in arrears, with all principal and remaining accrued interest due upon maturity.

As of March 31, 2019, the outstanding principal amount under loans from FFG was $9,546, including $2,914 of current portion.

On March 8, 2019, Arsanis, Merger Sub, X4 and Arsanis GmbH, a wholly owned subsidiary of Arsanis, entered into the Settlement Agreement with FFG (the “Settlement Agreement”) in respect to allegations by FFG in February 2019 that Arsanis and Arsanis GmbH breached certain reporting, performance and other obligations in connection with grants and loans made by FFG to Arsanis GmbH between September 2011 and March 2017 to fund qualifying research and development expenditures. Pursuant to the terms of the Settlement Agreement, in exchange for FFG’s waiver of all claims against Arsanis and Arsanis GmbH (except for its claims for repayment of the loans and regular interest but including its waiver of claims for repayment of grants and interest exceeding regular interest), subject to compliance by Arsanis and Arsanis GmbH with the terms of the Settlement Agreement, Arsanis GmbH agreed to repay the outstanding loan principal (plus regular interest accrued thereon) on an accelerated payment schedule of three years instead of five years, with the final accelerated installment due and payable on June 30, 2021. The parties also agreed, among other things, that (i) the portion of such loans to be repaid in 2019 is $2,914on the first business day following March 31, 2019 and (ii) until all of the loans have been repaid and subject to other terms specified in the Settlement Agreement, commencing April 30, 2019, a minimum cash balance equal to 70% of the then-outstanding principal amount of the loans will be maintained at Arsanis GmbH in an account held with an Austrian bank.

As of March 31, 2019,2020, future principal payments and the final payment due under the Company’s loan agreementsAmended Loan Agreement were as follows:

Year Ending December 31,  Hercules   FFG   Total 

2019

  $1,345   $2,914   $4,259 

2020

   4,305    4,462    8,767 

2021

   4,350    2,170    6,520 
  

 

 

   

 

 

   

 

 

 

Long-term debt

  $    10,000   $      9,546   $19,546 
  

 

 

   

 

 

   

 

 

 

8.

Leases

Effective January 1, 2019, the Company adopted ASC 842 using the modified retrospective approach through a cumulative-effect adjustment and utilizing the effective date as its date of initial application, with prior periods unchanged and presented in accordance with the previous lease accounting guidance. Upon adoption, the Company recordedright-of-use assets of $2,026 and lease liabilities of $2,538, of which $1,925 was classified asnon-current and $613 as current. The difference between the value of theright-of-use asset and the lease liabilities relates to $512 of net deferred, accrued and prepaid rent that was reclassified against theright-of-use asset upon adoption of ASC 842 on January 1, 2019. follows (in thousands):

Year Ending December 31,Total
2020$—  
2021—  
202214,871  
202310,129  
Long-term debt$25,000  

8. Leases
16

X4 PHARMACEUTICALS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)
The Company has lease agreements for its facilities in Cambridge, Massachusetts, which is the Company’s global headquarters,principal executive offices; Vienna, Austria, which is the Company’s research and development center, andcenter; Waltham, Massachusetts, which is the former headquarters of Arsanis. The Company planshas sublet to sublease its Waltham,a third party; and Allston, Massachusetts, facility.as further discussed below. There are no restrictions or financial covenants associated with any of the lease agreements.

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

Cambridge Lease

Lease—In August 2017, the Company entered into a non-cancellable operating lease agreement for office space of approximately thirteen13 thousand square feet in Cambridge, Massachusetts (“Cambridge Lease”) which expires on July 31, 2022. The Cambridge leaseLease includes an annual rent escalation clause and the Company has the option to extend the lease for one period of five additional years. Base rent is approximately $810$825 thousand annually and the monthly rent expense is being recognized on a straight-line basis over the term of the lease.lease as the Company amortizes the associated operating lease right-of-use asset. In addition to the base rent, the Company is also responsible for its share of operating expenses, electricity and real estate taxes, in accordance with the terms of lease. These costs are classified as variable lease payments and are not included in the determination of the leases’right-of-use operating assets or lease operating liabilities.

Waltham Lease

On March 13, 2019, as part of its Merger with Arsanis, theLease—The Company acquired an operating lease for approximately sixhas 6 thousand square feet of office space in Waltham, Massachusetts (“Waltham Lease”). The Waltham lease,Lease, as amended, commenced on January 1, 2019, and expires approximately 5 years from the commencement date. The base rent is approximately $459$262 thousand annually. In addition to the base rent, the Company is also responsible for its share of operating expenses, electricity and real estate taxes, in accordance with the terms of the Amended Lease Agreement. Thesewhich costs are classified as variable lease payments and are not included in the determination of the leases’right-of-use assets or lease liabilities.

The Company is subleasing the space to a third party for the duration of the lease. The right-of-use asset is being amortized to rent expense over the 5-year term of the lease.

Vienna Lease

On March 13, 2019, as part of its Merger with Arsanis, theAustria Lease—The Company acquiredhas an operating lease for approximately four hundred400 square meters of laboratory and office space in Vienna, Austria, (“Vienna Austria Lease”) which commenced on March 1, 2019, as amended, for a term of two2 years. The lease is cancellable by the Company upon three month’smonths’ notice with no penalty. The annual base rent is approximately $155.$155 thousand. The Company has classified this lease as a short-term lease as it is not reasonably certain that the Company withwill not terminate the lease within one year and, accordingly, has not recorded aright-of-use asset. Accordingly, rent expense is recorded on a straight-line basis as incurred over the term of the lease.

Allston Lease— On November 11, 2019, the Company entered into a lease agreement for approximately 28,000 square feet of office space currently under construction in a building located in Allston, Massachusetts (“Allston Lease”). The office space is expected to replace the Company’s current headquarters located in Cambridge, Massachusetts. The Company intends to move into the premises upon the completion of construction, which is anticipated to be in 2020. Monthly rent payments under the lease are expected to commence in May 2020, reflecting a 180-day rent-free period following the execution of the Lease, subject to the timely completion of construction of the premises. Base rental payments will be approximately $1.0 million annually, plus certain operating expenses. The term of the lease will continue until November 2026, unless earlier terminated in accordance with the terms of the lease. The Company has the right to sublease the premises, subject to landlord consent. The Company also has the right to renew the lease for an additional five years at the then prevailing effective market rental rate. The Company is required to provide the landlord with a $1.1 million security deposit in the form of a letter of credit, which is classified as restricted cash.

For the Allston Lease, the Company is participating in the construction of the office space and has incurred construction costs to prepare the office space for its use, which will be partially reimbursed by the landlord. The Company has concluded that these construction costs generate and enhance the landlord’s assets and, as such, costs that are not reimbursed will be classified as prepaid rent and then reclassified to the right-of-use asset on the lease commencement date. The lease commencement date is expected to occur once the landlord's asset is completed and available for additional leasehold improvements funded by the Company. Upon the date of lease commencement, which had not yet occurred as of March 31, 2020, the Company will recognize the lease liability, which will reflect the future rent payments for the term of the lease discounted at the Company's collateralized borrowing rate, and the right-of-use asset, which will be measured as the lease liability plus the prepaid rent incurred to date.
As the Company’s leases do not provide an implicit rate, the Company estimated the incremental borrowing rate in calculating the present value of the lease payments. The Company utilizes its incremental borrowing rates, which are the rates incurred to borrow on a collateralized basis over a similar term anand amount equal to the lease payments in a similar economic environment.

17

X4 PHARMACEUTICALS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)
The components of lease expense for the three months ended March 31, 2020 and 2019 were as follows:

Lease Cost  For the three months ended
March 31, 2019
 

Fixed operating lease cost

  $187 

Short-term lease costs

   8 
  

 

 

 

Total lease expense

  $195 
  

 

 

 

Other information

  

Cash paid for amounts included in the measurement of lease liabilities:

  

Operating cash flows from operating leases

  $201 

Leased assets obtained in exchange for new operating lease liabilities (1)

  $781 

Weighted-average remaining lease term—operating leases

   3.9 years 

Weighted-average discount rate—operating leases

   9.0

(1)

Acquired in Merger with Arsanis

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amountsfollows (dollars in thousands, except share and per share amounts)thousands):

For the three months ended March 31,
Lease Cost20202019
Fixed operating lease cost$218  $187  
Short-term lease costs38   
Total lease expense$256  $195  
Other information
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases$242  $201  
Sublease income$48  $—  
Leased assets obtained in exchange for new operating lease liabilities (1)
$484  
Weighted-average remaining lease term—operating leases2.8 years3.9 years
Weighted-average discount rate—operating leases9.0 %9.0 %

(Unaudited)

(1)Acquired in the Merger
Maturities of lease liabilities due under these lease agreements that have commenced as of March 31, 20192020 are as follows:

Maturity of lease liabilities

  Operating Leases 

2019 (remainder of 2019)

  $837 

2020

   1,281 

2021

   1,304 

2022

   970 

2023

   489 

Thereafter

   —   
  

 

 

 

Total lease payments

   4,880 

Less: interest

   (764
  

 

 

 

Total operating lease liabilities as of March 31, 2019

  $4,116 
  

 

 

 

follows (in thousands):

Maturity of lease liabilitiesOperating
Leases
2020$853  
20211,098  
2022754  
2023263  
2024—  
Total lease payments2,968  
Less: interest(365) 
Total operating lease liabilities as of March 31, 2020$2,603  

9. Commitment and Contingencies
The Company adopted ASU2016-02 on January 1, 2019 as noted above, and as required, the following disclosure is provided for periods prior to adoption. Future annual minimum lease payments due under the Company’s operating leases as of December 31, 2018 were as follows:

Year Ending December 31,

  Operating Leases 

2019

  $810 

2020

   823 

2021

   835 

2022

   492 
  

 

 

 

Total

 ��$2,960 
  

 

 

 

9.

Commitment and Contingencies

Sponsored Research Agreement Commitments

In April 2017, the Company entered into a sponsoredhas agreements with clinical research agreement with a university that the Company refers to as the Sponsored Research Agreement,organizations (“CROs”) pursuant to which the Company and the university intend to conduct a research program related to understanding the mechanismsCROs are conducting clinical trial of failed long-term adaptive immunity in WHIM patients. Under the terms of the Sponsored Research Agreement, the Company agreed to provide fundingmavorixafor for the research programtreatment of up to $499 over a three-year period. The Sponsored Research Agreement will remain in effect for three years, unless earlier terminated in the event that (i) either party materially breaches any representation, obligation or covenantWHIM syndrome, WM and fails to remedy such breach within 30 days after receipt of notice or (ii) the Principal Investigator, as defined in the agreement, is unable or unwilling to conduct the research or perform his or her obligations under the agreement, at which time the Company may terminate the agreement upon 30 days’ prior written notice to the university.SCN. The Company may terminate the agreement at any time upon at least 60 days’ prior written notice.

During the three months ended March 31, 2019 and 2018, the Company incurred $42, respectively, of research and development expenses related to its payment obligationsthese agreements by providing notice pursuant to the university under the Sponsored Research Agreement. Ascontractual provisions of March 31, 2019, thesuch agreements and would incur early termination fees. The Company hadnon-cancelable purchase commitments under this agreement totaling $181, with $125 committed in 2019 and $56 committed in 2020.

Manufacturing Commitments

As of March 31, 2019, the Company entered intohas agreements with several contract manufacturing organizations to provide preclinical and(“CMOs”) for the production of mavorixafor for use in clinical trial materials. As of March 31, 2019, and December 31, 2018, the Company hadnon-cancelable purchase commitments under these agreements totaling approximately $250, all committed in 2019.

trials.

Indemnification Agreements

Agreements— In the ordinary course of business, the Company may provide indemnification of varying scope and terms to vendors, lessors, business partners and other parties with respect to certain matters including, but not limited to, losses arising out of breach of such agreements

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

or from intellectual property infringement claims made by third parties. In addition, the Company has entered into indemnification agreements with members of its board of directors and its executive officers that will require the Company to, among other things, indemnify them against certain liabilities that may arise by reason of their status or service as directors or officers. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is, in many cases, unlimited. To date, the Company has not incurred any material costs as a result of such indemnification obligations. The Company is not currently aware of any indemnification claims and has not0t accrued any liabilities related to such obligations in its consolidated financial statements as of March 31, 20192020 or December 31, 2018.

2019.

18

X4 PHARMACEUTICALS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)
License Agreements

Agreements— In February 2017, Arsanis entered into an option and license agreement (the “Adimab Option Agreement”) in February 2017, which was acquired by the Company as a result of the Merger, under which the Company is obligated to make contingent andnon-contingent payments should the Company exercise its optionwith Adimab to obtain rights to certain RSV antibodies. Ifantibodies, which are being used in the “ASN500” program. The Company exercised this option for an up-front payment of $250 thousand. In July 2019, the Company chosetransferred the intellectual property related to exercise its option, it would bethe ASN500 program through an exclusive, worldwide license with a third party. The Company remains obligated to paymake payments to Adimab an option fee of approximately $250 and makebased on future clinical and regulatory milestone paymentsmilestones of up to approximately $25,000,$25 million, as well as royalty payments on aproduct-by-product andcountry-by-country basis of a mid single-digitmid-single-digit percentage based on net sales by the Company, its affiliates, licensees or sublicensees of products based on certain RSV antibodies during the applicable term for such product in that country. The Companythird party is required to fund any future payments that may choosebecome due to exercise its option under the terms of the Adimab Option Agreement at any time on or before August 31, 2019. As of March 31, 2019, the Company had not exercised its option under the Adimab Option Agreement.

Adimab.

Legal Proceedings

Proceedings— The Company is not a party to any litigation and does not have contingency reserves established for any litigation liabilities. At each reporting date, the Company evaluates whether or not a potential loss amount or a potential range of loss is probable and reasonably estimable under the provisions of the authoritative guidance that addresses accounting for contingencies. The Company expenses as incurred the costs related to suchany legal proceedings

10.

proceedings.

10. Preferred and Common Stock Warrants

As of March 31, 2019, the Company’s outstanding warrants to purchase shares of common stock consisted of the following:

Issuance Date

  Number of
Shares of
Common
Stock Issuable
   Exercise
Price
   Classification   Expiration Date 

August 14, 2015

   81,228   $21.78    Equity    August 14, 2020 

August 21, 2015

   69,603   $21.78    Equity    August 21, 2020 

October 25, 2016

   5,155   $19.78    Equity    October 24, 2026 

November 1, 2017

   130,609   $19.78    Equity    October 31, 2020 

November 17, 2017

   8,442   $19.78    Equity    November 16, 2020 

December 4, 2017

   5,661   $19.78    Equity    December 3, 2020 

December 28, 2017

   6,925   $19.78    Equity    December 27, 2020 

December 28, 2017

   115,916   $19.78    Equity    December 28, 2027 

September 12, 2018

   25,275   $19.78    Equity    September 12, 2021 

September 12, 2018

   20,220   $19.78    Equity    September 12, 2028 

October 19, 2018

   20,016   $19.78    Equity    October 19, 2028 

December 11, 2018

   5,004   $19.80    Equity    October 19, 2028 
  

 

 

       
   494,054       
  

 

 

       

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

As of December 31, 2018, the Company’s outstanding warrants to purchase shares of preferred stock (which converted into warrants to purchase common stock upon close of the Merger) consisted of the following (not adjusted for the ReverseCommon Stock Split or Exchange Ratio):

December 31, 2018

 

Warrant Name

  Issuance Date   Number of
Shares of
Preferred
Stock Issuable
   Exercise
Price
   Exercisable
for
   Classification   Expiration Date 

Series A warrants

   August 14, 2015    854,785   $2.07    Series A    Liability    August 14, 2020 

Series A warrants

   August 21, 2015    732,453   $2.07    Series A    Liability    August 21, 2020 

SVB warrants

   October 25, 2016    54,256   $1.88    Series A    Liability    October 24, 2026 

Series B warrants

   November 1, 2017    1,374,435   $1.88    Series B    Liability    October 31, 2020 

Series B warrants

   November 17, 2017    88,845   $1.88    Series B    Liability    November 16, 2020 

Series B warrants

   December 4, 2017    59,576   $1.88    Series B    Liability    December 3, 2020 

Series B warrants

   December 28, 2017    72,875   $1.88    Series B    Liability    December 27, 2020 

Series B warrants

   December 28, 2017    1,219,815   $1.88    Series B    Liability    December 28, 2027 

Series B warrants

   September 12, 2018    265,957   $1.88    Series B    Liability    September 12, 2021 

Series B warrants

   September 12, 2018    212,765   $1.88    Series B    Liability    September 12, 2028 

Series B warrants

   October 19, 2018    210,638   $1.88    Series B    Liability    October 19, 2028 
    

 

 

         
     5,146,400         
    

 

 

         

Warrants

Prior to the Merger (see Note 1), the Company issued warrants for the purchase of its preferred stock and had classified itsthese preferred stock warrants as a liability on its consolidated balance sheet becauseas the warrants arewere deemed to be freestanding financial instruments that may have required the Company to transfer assets upon exercise. The liability associated with each of these warrants was initially recorded at fair value upon the issuance date of each warrant and iswas subsequently remeasured to fair value as a component of other income (expense), net in the consolidated statement of operations and comprehensive loss.operations. Upon the closing of the Merger, with Arsanis (see Note 1), pursuant to the Merger Agreement, all of the outstanding X4 preferred stock was converted to Arsanis common stock and the X4 preferred stock warrants converted to warrants for the purchase of Arsanis common stock. The Company assessed the features of the warrants and determined that they qualify for classification as permanent equity upon the closing of the Merger. Accordingly, the Company remeasured the warrants to fair value upon the closing of the Merger, which was $5,235$5.2 million at March 13, 2019, with $288 thousand of expense recorded during the three months ended March 31, 2019. Upon the closing of the Merger, the warrant liability was reclassified to additionalpaid-in capital.

11.

Common Stock, Redeemable Common Stock, and Convertible Preferred Stock (converted to Common Stock)

Common Stock

In connection with its issuance of common stock in public offerings that closed on April 16, 2019 and November 29, 2019, the Company issued 3,900,000 Class A warrants, which are exercisable for the Company’s common stock, and 5,416,667 Class B warrants, which are exercisable for shares of the Company’s common stock or prefunded warrants to purchase shares of the Company's common. The Class A warrants have an exercise price of $13.20 per warrant, expire on April 15, 2024 and were immediately exercisable. The Class B warrants were immediately exercisable upon issuance, have an exercise price of $15.00 per warrant and expire on a date that is the earlier of (a) the date that is 30 calendar days from the date on which the Company issues a press release announcing top-line data from its Phase 3 clinical trial of mavorixafor for the treatment of patients with WHIM syndrome (or, if such date is not a business day, the next business day) and (b) November 28, 2024. In addition, in connection with the April 16, 2019 and November 29, 2019 offerings, the Company issued 2,130,000 and 1,750,000 prefunded warrants, respectively, for proceeds of $10.999 and $11.999 per share, respectively. Each of the prefunded warrants is exercisable into 1 share of the Company's common stock, has a remaining exercise price of $0.001 per share and was immediately exercisable upon issuance.
The following table provides a roll forward of outstanding warrants for the three month period ended March 31, 2019:
Number of
warrants
Weighted
Average
Exercise
Price
Weighted
Average
Contractual
Term (Years)
Outstanding and exercisable warrants to purchase preferred shares as of December 31, 20185,146,400  $1.94  4.23
Conversion of warrant to purchase preferred shares to warrants for the purchase of common stock and adjusted for the Exchange Ratio and Reverse Stock Split(4,657,350) 1.94
Issuance of warrants for the purchase of common stock5,000  19.80  
Exercised—  —  
Cancelled—  —  
Outstanding warrants to purchase common shares as of March 31, 2019494,050  $20.39  3.04
19

X4 PHARMACEUTICALS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)

The following table provides a roll forward of outstanding warrants for the three month period ended March 31, 2020:
Number of warrantsWeighted Average Exercise PriceWeighted Average Contractual Term (Years)
Outstanding and exercisable warrants to purchase common shares as of December 31, 201913,656,871$13.684.59
Issued
Exercised
Cancelled
Outstanding and exercisable warrants to purchase common shares as of March 31, 202013,656,871$13.684.34


As of March 31, 20192020, the Company’s outstanding warrants to purchase shares of common stock consisted of the following:
Issuance DateNumber of
Shares of
Common
Stock Issuable
Exercise
Price
ClassificationExpiration Date
August 14, 201581,228  $21.78  EquityAugust 14, 2020
August 21, 201569,603  $21.78  EquityAugust 21, 2020
October 25, 20165,155  $19.78  EquityOctober 24, 2026
November 1, 2017130,609  $19.78  EquityOctober 31, 2020
November 17, 20178,442  $19.78  EquityNovember 16, 2020
December 4, 20175,661  $19.78  EquityDecember 3, 2020
December 28, 20176,925  $19.78  EquityDecember 27, 2020
December 28, 2017115,916  $19.78  EquityDecember 28, 2027
September 12, 201825,275  $19.78  EquitySeptember 12, 2021
September 12, 201820,220  $19.78  EquitySeptember 12, 2028
October 19, 201820,016  $19.78  EquityOctober 19, 2028
March 13, 20195,000  $19.80  EquityMarch 12, 2029
April 16, 20193,866,154  $13.20  EquityApril 15, 2024
April 16, 20192,130,000  $11.00  Equityn/a
November 29, 20195,416,667  $15.00  EquityNovember 28, 2024
November 29, 20191,750,000  $12.00  Equityn/a
13,656,871  

11. Common Stock
Common Stock— As of March 31, 2020 and December 31, 2018,2019, the Company’s certificateRestated Certificate of incorporation,Incorporation, as amended and restated,(the “Restated Certificate”), authorized the Company to issue 33,333,333 shares and 11,070,776, shares, respectively, of $0.001 par value common stock. The voting, dividend and liquidation rights of the holders of the Company’s common stock are subject to and qualified by the rights, powers and preferences of the holders of the preferred stock.

Each share of common stock entitles the holder to one vote on all matters submitted to a vote of the Company’s stockholders. Common stockholders are entitled to receive dividends, as may be declared by the board of directors, if any. Through March 31, 2019 and December 31, 2018, noNaN cash dividends hadhave been declared or paid.

Redeemable Common Stock

Pursuantpaid to date. The Company’s board of directors has approved and recommended that its shareholders approve an amendment to the requirementsRestated Certificate to increase the number of the July 2014 license agreement with Genzyme (see Note 13), in August 2015, the Company issued to Genzyme for no additional consideration 107,371, as adjusted for the Reverse Stock Split and Exchange Ratio,authorized shares of common stock which had an aggregate fair value of $734 on the date of issuance. Genzyme had the rightfrom 33,333,333 shares to require the Company to repurchase all, but not less than all, of these shares of common stock at any time during the term of the license agreement for a price of $0.01 per share. Because of this redemption feature, the shares of common stock issued to Genzyme were classified outside of stockholders’ deficit on the consolidated balance sheets. As a result of the Merger, these shares were exchanged for common stock.

125,000,000 shares. If

20

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALSFINANCIAL STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

Convertible Preferred Stock (converted to Common Stock)

The Company has issued Series Seed convertible preferred stock (the “Series Seed preferred stock”), Series A convertible preferred stock (the “Series A preferred stock”) and Series B convertible preferred stock (the “Series B preferred stock”). As of March 31, 2019 and December 31, 2018,

approved by the Company's shareholders at the Company’s upcoming 2020 annual meeting of stockholders, the increase will be effective upon the filing of a certificate of incorporation,amendment with the Secretary of State of Delaware, which is expected to occur as amended and restated, authorized the Company to issue a total of 10,000,000 shares and 59,413,523 shares, respectively, of preferred stock, with a par value of $0.001 per share.

The holders of Preferred Stock have liquidation rights in the event of a deemed liquidation that, in certain situations, are not solely within the control of the Company. Therefore, the Preferred Stocksoon as practicable after approval is classified outside of stockholders’ deficit on the consolidated balance sheet.

As of March 31, 2019, there were no preferred stock outstanding. As of December 31, 2018, the Preferred Stock consisted of the following:

   December 31, 2018 
   Preferred
Stock
Designated
   Preferred
Stock
Issued and
Outstanding
   Carrying
Value
   Liquidation
Preference
   Common
Stock

Issuable
Upon

Conversion(1)
 

Series Seed preferred stock

   2,313,523    1,516,136   $1,310   $1,444    143,630 

Series A preferred stock

   22,000,000    19,946,862    32,480    47,624    1,895,610 

Series B preferred stock

   25,100,000    18,616,569    30,885    34,999    1,769,190 
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 
   49,413,523    40,079,567   $64,675   $84,067    3,808,430 
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

(1)

Adjusted to reflect Reverse Stock Split and Exchange Ratio.

12.

Stock-Based Compensation

obtained.

.
12. Stock-Based Compensation
Summary of Plans

Plans— Upon completion of the Merger with Arsanis on March 13, 2019, X4’s 2015 Employee, Director and Consultant Equity Incentive Plan, as amended (the “2015 Plan”), Arsanis’ 2017 Equity Incentive Plan (the “2017 Plan”) and Arsanis’ 2017 Employee Stock Purchase Plan (the “2017 ESPP”) (collectively, the “Plans”) were assumed by the Company. In June 2019, the Company adopted the 2019 Inducement Equity Incentive Plan. These Plansplans are administered by the boardBoard of directorsDirectors or at the discretion of the board of directors, by a committee of the boardBoard of directors.Directors. The exercise prices, vesting and other restrictions are determined at the discretion of the boardBoard of directors,Directors, or its committee if so delegated, except that the exercise price per share of stock options may not be less than 100% of the fair market value of the share of common stock on the date of grant and the term of the stock option may not be greater than ten years. Incentive stock options granted to employees and restricted stock awards granted to employees, officers, members of the board of directors, advisors, and consultants of the Company typically vest over four years.Non-statutory options granted to employees, officers, members of the board of directors, advisors, and consultants of the Company typically vest over three or four years. Shares that are expired, terminated, surrendered or canceled under the Plans without having been fully exercised will be available for future awards. In addition, shares of common stock that are tendered to the Company by a participant to exercise an award are added to the number of shares of common stock available for the grant of awards.

2015 Employee, Director and Consultant Equity Incentive Plan

Plan— In 2015, the boardBoard of directorsDirectors and shareholders of X4 adopted the 2015 Plan, which providedprovides for the Company to grant incentive stock options or nonqualified stock options, restricted stock awards and other stock-based awards to employees, directors and consultants of the Company. Each stock option outstanding under the 2015 Plan at the effective time of the Merger was automatically converted into a stock option exercisable for a number of shares of the Company’s common stock calculated based on the Exchange Ratio and the exercise price per share of such outstanding stock option.

The total number of shares of common stock that may be issued under the 2015 Plan was 1,700,000 shares, adjusted for the reverse stock split as of December 31, 2018 and March 31, 2019.is 969,340 shares. Shares that are expired, forfeited, canceled or otherwise terminated without having been fully exercised will be available for future grant under the 2015 Plan. As of March 31, 2020, approximately 106,000 shares were available for future issuance under the 2015 Plan. In addition, shares of common stock that are tendered to the Company by a participant to exercise an award are added to the number of shares of common stock available for future grants.

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

2017 Equity Incentive Plan

In 2017, the board of directors and shareholders of Arsanis adoptedPlan— Under the 2017 Plan, which provided for the Company tomay grant incentive stock options,non-qualified options, stock appreciation rights, restricted stock awards, restricted stock units and other stock-based awards. Incentive stock options may be granted only to the Company’s employees, including officers and directors who are also employees. Awards other than incentive stock options may be granted to employees, officers, members of the board of directors, advisors and consultants of the Company. The number of shares of common stock reserved for issuance under this plan will automatically increaseincreases on January 1 of each year, through January 1, 2027, in an amount equal to the lowest of 1,025,490170,915 shares of the Company’s common stock, 4%4.0% of the number of shares of the Company’s common stock outstanding on January 1 of each year and an amount determined by the Company’s boardBoard of directors.

Directors. As of March 31, 2020, approximately 114,000 shares were available for future issuance under the 2017 Plan. On March 25, 2020, the Board of Directors approved amendments tothe 2017 Plan, subject to stockholder approval. If approved by the stockholders, the amendments would increase the number of shares of common stock reserved for issuance under the 2017 Plan by an additional 474,465 shares (subject to adjustment for certain corporate events) and would amend the “evergreen provision” of the 2017 Plan to eliminate the fixed number of new shares that may be added to the 2017 Plan’s share reserve each year pursuant to the evergreen provision, such that the amended evergreen provision will provide for an automatic increase in the share reserve on the first day of each year, beginning on January 1, 2021 and ending on January 1, 2027, by an amount equal to the lesser of (a) 4% of the Company's outstanding shares on such date and (b) a number of shares determined by the Board of Directors.

2017 Employee Stock Purchase Plan

In 2017, the board of directors and shareholders of Arsanis adopted the 2017 ESPP. Plan— The 2017 ESPP provides participating employees with the opportunity to purchase shares of the Company’s common stock at defined purchase prices oversix-monththree-month offering periods. For the three month periodmonths ended March 31, 2019, no2020, 0 shares of common stock were issued under the 2017 ESPP.


21

X4 PHARMACEUTICALS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)
2019 Inducement Equity Incentive Plan— On June 17, 2019, the Board of Directors approved the adoption of the 2019 Inducement Equity Incentive Plan (the "Inducement Plan"), which is used exclusively for the grant of equity awards to individuals who were not previously employees of the Company (or following a bona fide period of non-employment), as an inducement material to such individual’s entering into employment with the Company, pursuant to Nasdaq Listing Rule 5635(c)(4). The total number of shares of common stock that may be issued under the Inducement Plan is 400,000 shares. Shares that are expired, forfeited, canceled or otherwise terminated without having been fully exercised will be available for future grant under the Inducement Plan. In addition, shares of common stock that are tendered to the Company by a participant to exercise an award are added to the number of shares of common stock available for future grants. As of March 31, 2020, approximately 137,000 shares were available for future issuance under the Inducement Plan.
Stock Option Valuation

The fair value of stock option grants is estimated using the Black-Scholes option-pricing model. The Company has historically been a private company prior to March 13, 2019, and as a result, lacked company-specific historical and implied volatility information. The Company estimated expected stock volatility based on the historical volatility of a publicly traded set of peer companies and expects to continue to do so until it has adequate historical data regarding the volatility of its own traded stock price. For options with service-based vesting conditions, the expected term of the Company’s stock options has been determined utilizing the “simplified” method for awards that qualify as “plain-vanilla” options. The expected term of stock options grantedto non-employee consultants is equal to the contractual term of the option award. The risk-free interest rate is determined by reference to the U.S. Treasury yield curve in effect at the time of grant of the award for time periods approximately equal to the expected term of the award. Expected dividend yield is based on the fact that the Company has never paid cash dividends and does not expect to pay any cash dividends in the foreseeable future.

Valuation— The following table presents, on a weighted average basis, the assumptions used in the Black-Scholes option-pricing model to determine the grant-date fair value of stock options granted to employees, directors andnon- employees:

   Three Months Ended
March 31,
 
       2019          2018     

Risk-free interest rate

   2.4  2.8

Expected term (in years)

   5.90   5.94 

Expected volatility

   90.6  86.0

Expected dividend yield

   0  0

Three Months Ended
March 31,
20202019
Risk-free interest rate1.0 %2.4 %
Expected term (in years)6.015.90
Expected volatility94.1 %90.6 %
Expected dividend yield%%

Stock Options

The following table summarizes the Company’s stock option activity since Decemberfor the three months ended March 31, 2018:

   Number of
Shares
   Weighted
Average
Exercise
Price
   Weighted
Average
Contractual
Term (Years)
   Aggregate
Intrinsic
Value
 

Outstanding as of December 31, 2018

   797,931   $8.29    8.42   $6,486 

Assumed as part of Merger with Arsanis

   271,230        62.60     

Granted

   136,913    17.22     

Exercised

   (16,483   6.85     

Forfeited

   (22,378   8.43     
  

 

 

       

Outstanding as of March 31, 2019

   1,167,213   $21.97    7.65   $7,168 
  

 

 

       

Exercisable as of March 31, 2019

   556,774   $30.13     
  

 

 

       

Vested and expected to vest as of March 31, 2019

   979,466   $48.79     
  

 

 

       
2020:

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

Number of
Shares
Weighted
Average
Exercise
Price
Weighted
Average
Contractual
Term (Years)
Aggregate
Intrinsic
Value
Outstanding as of December 31, 20191,297,029  $17.05  8.4$1,286  
Granted206,775  10.22  
Exercised(13,006) 7.38  
Forfeited(22,593) 17.46  
Outstanding as of March 31, 20201,468,205  $16.17  8.4$958  
Exercisable as of March 31, 2020543,825  $21.17  7.1$771  
Vested and expected to vest as of March 31, 20201,270,027  $16.32  8.3$938  

The aggregate intrinsic value of options is calculated as the difference between the exercise price of the stock options and the fair value of the Company’s common stock for those options that had exercise prices lower than the fair value of the Company’s common stock. The aggregate intrinsic value of stock options exercised during the three months ended March 31, 2020 and 2019 was $123.$35 thousand and $123 thousand, respectively. The weighted average grant-date fair value per share of stock options granted during the three months ended March 31, 2020 and 2019 was $12.88.

Stock-Based Compensation

Effective January 1, 2019, the Company adopted ASU2018-07 which required the Company to adjust compensation expense for the three months ended March 31, 2019 for an immaterial amount for the unvestednon-employee share options outstanding. The Company no longer remeasures the fair value of options granted tonon-employees at each reporting period end (see Note 2).

$7.75 and $12.88, respectively.


Restricted Stock Units— During the three months ended March 31, 2019, the Company granted options to purchase 136,913 shares2020, there were 0 significant grants, vestings or forfeitures of common stock. restricted stock units.
Stock-Based Compensation— As of March 31, 2019,2020, total unrecognized compensation expense related to unvested stock options awardand restricted stock units was $5,066,$7.0 million, which is expected to be recognized over a weighted average period of 2.53.0 years.

Stock-based compensation expense was classified in the consolidated statements of operations and comprehensive loss as follows:

   Three Months Ended
March 31,
 
       2019           2018     

Research and development expense

  $84   $38 

General and administrative expense

   178    90 
  

 

 

   

 

 

 

Total stock-based compensation

   262    128 
  

 

 

   

 

 

 

13.

License, Collaboration, and Funding Agreements

Genzyme Agreement

In July 2014, the Company entered into a license agreement (the “Genzyme Agreement”) with Genzyme pursuant to which the Company was granted an exclusive license to certain patents and intellectual property owned or controlled by Genzyme related to the CXCR4 receptor to develop and commercialize products containing licensed compounds (including but not limited toX4P-001) for all therapeutic, prophylactic and diagnostic uses, with the exception of autologous and allogenic human stem cell therapy. Under the terms of the Genzyme Agreement, the Company is obligated to use commercially reasonable efforts to develop and commercialize licensed products for use in the field in the United States and at least one other major market country. The Company has the right to grant sublicenses of the licensed rights that coverX4P-001 to third parties.

In exchange for these rights, in August 2014, the Company made an upfront payment of $50 to Genzyme. The Company accounted for the acquisition of technology as an asset acquisition because it did not meet the definition of a business. The Company recorded the upfront payment as research and development expense in the consolidated statement of operations and comprehensive loss because the acquired technology representedin-process research and development and had no alternative future use. In August 2015, as a result of the closing of the Company’s Series A preferred stock financing, the Company made an additional cash payment of $300 to Genzyme and issued to Genzyme 107,371 shares of its common stock, as adjusted for the 6 for 1 Reverse Stock Split and Exchange Ratio (see Note 11), each as required by the Genzyme Agreement. The $300 payment and the $734 fair value of the 107,371 shares of common stock issued to Genzyme were recorded as research and development expense in the consolidated statements of operations and comprehensive loss for the year ended December 31, 2015. Prior to the Merger with Arsanis, Genzyme has the right to require the Company to repurchase all, but not less than all, of these shares of common stock at any time during the term of the Genzyme Agreement for a price of $0.01 per share. Due to this redemption feature, the shares of common stock issued to Genzyme were classified outside of stockholders’ deficit on the consolidated balance sheets as of December 31, 2018. On March 13, 2019, the closing date of the Merger with Arsanis, these redeemable common shares were exchanged for common shares and, as a result, the fair value of the shares was reclassified to permanent equity.

Under the Genzyme Agreement, the Company is obligated to pay Genzyme milestone payments in the aggregate amount of up to $25,000, contingent upon the achievement by the Company of certain late-stage regulatory and sales milestones with respect to

22

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALSFINANCIAL STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

licensed products. In addition, the Company may be required to make aone-time milestone payment to Genzyme upon the consummation by the Company of a change of control transaction, in an amount equal to 5.5% of the consideration paid to equity holders of the Company, other than Genzyme, in connection with such change of control transaction, after deducting outstanding debt obligations of the Company and the aggregate cash investments made by equity holders into the Company prior to the closing of the change of control transaction. The Merger with Arsanis qualifies as a change of control transaction, as defined in the license agreement, but results in no payment being due to Genzyme under the license agreement.

The Company concluded that this contingent payment obligation meets the definition of a derivative instrument as the contingent payment obligation is not clearly and closely related to its host instrument and is a cash-settled liability (see Note 2). Accordingly, the Company classifies this derivative as a liability within other liabilities(non-current) on its consolidated balance sheet (see Note 2), and changes in the fair value of the derivative liability are recognized as a component of other income (expense), net in the consolidated statement of operations and comprehensive loss (see Note 4). On March 13, 2019, the closing date of the Merger with Arsanis, this derivative liability was remeasured to fair value, which was $0, and subsequent changes in fair value will no longer be recognized in the consolidated statements of operations and comprehensive loss because the contingent payment obligation expired at that time.

Under the Genzyme Agreement, the Company is obligated to pay Genzyme tiered royalties based on net sales of licensed products that the Company commercializes under the agreement. The obligation to pay royalties for each licensed product expires on acountry-by-country basis on the latest of (i) the expiration of licensed patent rights that cover that licensed product in that country, (ii) the expiration of regulatory exclusivity in that country and (iii) ten years after the first commercial sale of such licensed product in that country. Royalty rates are subject to reduction under the agreement in specified circumstances, including in any country if the Company is required to obtain a license from any third party to the extent the Company’s patent rights might infringe the third party’s patent rights, if a licensed product is not covered by a valid claim in that country or if sales of generic products reach certain thresholds in that country. If the Company enters into a sublicense under the agreement, the Company will be obligated to pay Genzyme a percentage of certain upfront fees, maintenance fees, milestone payments and royalty payments paid to the Company by the sublicensee.

Under the Genzyme Agreement, the Company will itself manufacture and supply, or enter into manufacturing or supply agreements with Genzyme or third parties to manufacture and supply, clinical and commercial supplies of licensed compounds and each licensed product. During the three months ended March 31, 2019 and 2018, the Company did not enter into any third-party manufacturing or supply agreements in connection with the Genzyme Agreement. The Company is also responsible for all costs related to the filing, prosecution and maintenance of the licensed patent rights.

The Genzyme Agreement will remain in effect until the expiration of the royalty term in all countries for all licensed products. The agreement may be terminated by either party with at least 90 days’ notice in the event of material breach by the other party that remains uncured for 90 days, by either party for insolvency or bankruptcy of the other party, immediately by Genzyme if the Company challenges the licensed patents, or immediately by the Company if a material safety issue arises.

During the three months ended March 31, 2019 and 2018, the Company did not incur any payment obligations to Genzyme under the Genzyme Agreement.

Georgetown Agreement

In December 2016, the Company entered into a license agreement (the “Georgetown Agreement”) with Georgetown University (“Georgetown”) pursuant to which the Company obtained an exclusive, worldwide license to make, have made, use, sell, offer for sale and import of products covered by patent rightsco-owned by Georgetown. The rights licensed to the Company are for all therapeutic, prophylactic and diagnostic uses in all disease indications in humans and animals.

Under the terms of the Georgetown Agreement, the Company paid aone-time only, upfront fee of $50 and the Company may be required to pay milestone payments of up to an aggregate of $800 related to commercial sales of a product. The Company accounted for the acquisition of technology as an asset acquisition because it did not meet the definition of a business. The Company recorded the upfront payment as research and development expense in the consolidated statement of operations and comprehensive loss because the acquired technology representedin-process research and development and had no alternative future use.

Under the Georgetown Agreement, the Company is solely responsible for all development and commercialization activities and costs in its respective territories. The Company is also responsible for all costs related to the filing, prosecution and maintenance of the licensed patent rights.

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

The term of the Georgetown Agreement will continue until the expiration of the last valid claim within the patent rights covering the product. Georgetown may terminate the agreement in the event (i) the Company fails to pay any amount and fails to cure such failure within 30 days after receipt of notice, (ii) the Company defaults in its obligation to obtain and maintain insurance and fails to remedy such breach within 45 days after receipt of notice, or (iii) the Company declares insolvency or bankruptcy. The Company may terminate the agreement at any time upon at least 60 days’ written notice.

During the three months ended March 31, 2019 and 2018, the Company did not incur any payment obligations to Georgetown under the Georgetown Agreement and no milestone payments were made or due under the Georgetown Agreement.

Beth Israel Deaconess Medical Center Agreement

In December 2016, the Company entered into a license agreement (the “BIDMC Agreement”) with Beth Israel Deaconess Medical Center (“BIDMC”), pursuant to which the Company obtained an exclusive, worldwide license to make, have made, use, sell, offer for sale and import of products covered by patent rightsco-owned by BIDMC. The rights licensed to the Company are for all fields of use.

Under the terms of the BIDMC Agreement, the Company paid aone-time only, upfront fee of $20 and the Company is responsible for all future patent prosecution costs. The Company accounted for the acquisition of technology as an asset acquisition because it did not meet the definition of a business. The Company recorded the upfront payment as research and development expense in the consolidated statement of operations and comprehensive loss because the acquired technology representedin-process research and development and had no alternative future use.

The term of the BIDMC Agreement will continue until the expiration of the last valid claim within the patent rights covering the licensed products. BIDMC may terminate the agreement in the event (i) the Company fails to pay any amount and fails to cure such failure within 15 days after receipt of notice, (ii) the Company is in material breach of any material provision of the agreement and fails to remedy such breach within 60 days after receipt of notice, or (iii) the Company declares insolvency or bankruptcy. We may terminate the agreement at any time upon at least 90 days’ written notice.

Three Months Ended
March 31,
20202019
Research and development expense$196  $84  
General and administrative expense417  178  
Total stock-based compensation$613  $262  


13. Income Taxes
The Company did not incur any payment obligations under the BIDMC Agreement during the months ended March 31, 2019 and 2018.

Adimab Option and License Agreement

In February 2017, Arsanis entered into an option and license agreement with Adimab, a related party (the “Adimab Option Agreement”). Under the Adimab Option Agreement, Adimab has provided to Arsanis certain proprietary antibodies against respiratory syncytial virus (“RSV antibodies”) for its evaluation during a specified option period and has granted Arsanis an exclusive,non-sublicensable license in a specified field under certain Adimab patent rights andknow-how during the option period. Under the Adimab Option Agreement, the Company has an exclusive option, exercisable during the option period upon payment of an option fee to Adimab, to require Adimab to assign to the Company all rights in up to a specified number of RSV antibodies selected by the Company and certain patent rights owned by Adimab that cover these antibodies, and to obtain from Adimab anon-exclusive license in a specified field, with the right to grant sublicenses, under certain other patent rights andknow-how owned by Adimab.

If the Company exercises its option under the Adimab Option Agreement, the Company is required to use commercially reasonable efforts to develop and commercialize at least one product based on a licensed RSV antibody in major markets and is obligated to pay Adimab an option fee of $0.3 million and make future milestone payments upon the achievement of specified clinical and regulatory milestones in the aggregate amount of up to $24.4 million. The Company is obligated to pay Adimab royalties at a mid single-digit percentage of net sales of products based on the initial RSV antibodies (including modified or derivative forms of those antibodies created by or for the Company) by the Company or any of its affiliates, licensees or sublicensees, regardless of whether these products practice any of the assigned or licensed patents orknow-how. If the Company materially breaches these diligence obligations, Adimab will have the right to terminate the Adimab Option Agreement.

The Company has no payment obligations under the Adimab Option Agreement with respect to sales of products based on licensed RSV antibodies to the extent they are sold at cost in developing countries under the February 2017 Gates Foundation grant agreement, as amended and restated in August 2018, and the August 2018 Gates Foundation grant agreement (which are described in further detail below). However, if such products are sold in developing countries for an amount that exceeds cost, then the amount of such excess will be subject to the royalty payment obligations described in the preceding paragraph.

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

If the Company does not exercise its option, the Adimab Option Agreement will expire on the Company’s achievement of specified preclinical milestones under the grant agreements with the Gates Foundation, but in any event no later thanmid-2019. If the Company does exercise its option, the Adimab Option Agreement will expire on thelast-to-expire royalty term (defined, on aproduct-by-product andcountry-by-country basis, as the period ending on the later of twelve years after the first commercial sale of such product in such country and the expiration of the last of a specified set of patents and patent applications covering such product in such country) for any and all products for which the Company is obligated to pay Adimab royalties under the Adimab Option Agreement. The Company has the right to terminate the Adimab Option Agreement for any reason by providing Adimab with a specified amount of prior written notice. Adimab has the right to terminate the Adimab Option Agreement if the Company materially breaches the agreement and fails to cure such breach within a specified cure period, including for the Company’s failure to use commercially reasonable efforts to develop and commercialize at least one product based on a licensed RSV antibody in major markets. If Adimab terminates the Adimab Option Agreement for the Company’s breach, if the Company terminates the agreement for convenience or if the agreement expires before the Company exercises its option, then the Company must return or destroy certainknow-how, including all initial RSV antibodies, and all modified or derivative forms of those antibodies, in its possession other than those for which the Company has made all payments required under the Adimab Option Agreement, assign certain patents covering certain RSV antibodies to Adimab, grant Adimab anon-exclusive, royalty-free license under certain other patents, and grant Adimab a time-limited right of first negotiation to obtain an exclusive license to certain patents andknow-how and the transfer and assignment of certain regulatory filings and approvals and other related assets related to products based on licensed RSV antibodies. Certain of the Company’s payment obligations relating to specified products and patents arising from the agreement survive expiration or termination of the agreement.

During the three months ended March 31, 2019, the Company recognized no research and development expense in connection with the Adimab Option Agreement.

Adimab Collaboration Agreement

In May 2011, Arsanis entered into a collaboration agreement with Adimab, LLC (“Adimab”) and together with certain applicable option exercise letters the Company has sent to Adimab, the “Adimab Collaboration Agreement”). Under the Adimab Collaboration Agreement, the Company and Adimab were required to use reasonable efforts to conduct certain research, which was funded by the Company, to discover and optimize antibodies directed against targets selected by the Company. With respect to each target that was the subject of the research, the Company had an exclusive option to obtain, with respect to a specified number of antibodies directed against such target and discovered or optimized by Adimab, (i) ownership of certain patent rights relating to such antibodies and (ii) exclusive andnon-exclusive licenses in a specified field, with the right to grant sublicenses, under certain patent rights andknow-how.

Under the Adimab Collaboration Agreement, for each target for which the Company has exercised an option, the Company is required to use commercially reasonable efforts to develop and commercialize at least one product in major markets. If the Company does not fulfill these diligence obligations, Adimab may consider it a material breach, allowing Adimab to terminate the Adimab Collaboration Agreement with respect to such target and all associated products.

The Company is obligated to pay Adimab royalties at a mid single-digit percentage of net sales made by the Company or its affiliates of products based on antibodies for which the Company exercised its option, or products that use or are based on any antibody discovered or optimized under the agreement, any derivative or modified version of any such antibody, or any sequence information as to any such antibody. In addition, if the Company sells or licenses to any third party, or otherwise grants rights to any third party to, any of the products for which the Company is obligated to pay Adimab royalties, either alone or as part of a package including specified patents not directed to these antibodies, the Company is obligated to pay Adimab either (i) the same royalties on net sales of such products by such third party or (ii) a percentage, ranging from the low double digits to a maximum of less than 30%, of the payments the Company receives from such third parties that are attributable to such grant of rights. In April 2017, the Company entered into a letter agreement with the Gates Foundation, pursuant to which the Company licensed to the Gates Foundation certain rights under its ASN100 program. The Company has no payment obligations under the Adimab Collaboration Agreement with respect to sales of certain antibody products if they are sold at cost in developing countries under its letter agreement with the Gates Foundation. However, if such products are sold in developing countries for an amount that exceeds cost, then the amount of such excess over cost will be subject to the royalty payment obligations described above.

If the Company (or one of its affiliates with rights under the agreement) undergoes a change in control and, at the time of such change in control, the Company has not sold or licensed to third parties all of its rights in antibodies for which the Company is obligated to pay Adimab royalties under the agreement, then the Company is obligated to either (i) pay Adimab a percentage, in the mid double digits, of the payments it receives from that change in control that are reasonably attributable to those rights and certain patents arising

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

from the collaboration or (ii) require the Company’s acquirer and all of its future third-party collaborators to pay to Adimab the royalties at a mid single-digit percentage of net sales based on those rights. If the Company grants rights to a third party under certain patents that are not directed to the antibodies for which the Company is obligated to pay Adimab royalties (as described above), the Company is also obligated to pay Adimab, in place of royalties or a percentage of payments received from the third party, a lump sum in the high six digits.

The Adimab Collaboration Agreement will expire on acountry-by-country basis twelve years after the first commercial sale in such country of the last product for which the Company is obligated to pay Adimab royalties in such country under the Adimab Collaboration Agreement. The Company has the right to terminate the Adimab Collaboration Agreement for any reason by providing Adimab with a specified amount of prior written notice. Adimab has the right to terminate the Adimab Collaboration Agreement if the Company materially breaches the agreement and fails to cure such breach within a specified cure period, including for its failure to use commercially reasonable efforts to develop and commercialize at least one product directed at a target for which the Company has exercised an option in major markets. If Adimab terminates the Adimab Collaboration Agreement for the Company’s breach, or if the Company terminates the agreement for convenience, then the Company must transfer or license to Adimab certain rights and assets relating to targets and antibodies for which the Company has exercised its option. Adimab is then obligated to make payments to the Company with respect to these targets and antibodies that are similar to the payments the Company is required to make to Adimab during the term of the agreement. Certain of the Company’s payment obligations relating to specified products and patents arising from the agreement survive expiration or termination of the agreement.

During the three months ended March 31, 2019, the Company did not recognize any research and development under the Adimab Collaboration Agreement.

Gates Foundation Grant Agreements

In February 2017, Arsanis entered into a grant agreement with the Gates Foundation (“Grant Agreement”), under which the Gates Foundation agreed to provide the Company up to approximately $9,300 to conduct preclinical development of monoclonal antibodies for the prevention of RSV infection in newborns (the “RSV project”).

In connection with this Grant Agreement, the Company has granted to the Gates Foundation anon-exclusive, perpetual, royalty-free, fully paid up, sublicensable license to make, use, sell, offer to sell, import, distribute, copy, modify, create derivative works, publicly perform and display the funded developments and, to the extent incorporated into a funded development or required to use a funded development, any other technology created outside of the RSV project that was used as part of the RSV project, for the benefit of people in developing countries. This license survives any expiration or termination of the grant agreement. The Grant Agreement expires on October 31, 2019. The Gates Foundation can modify, suspend or discontinue any payment under the grant agreement, or terminate the grant agreement, if it is not reasonably satisfied with the Company’s progress on the RSV project; if there are significant changes to the Company’s leadership or other factors that the Gates Foundation reasonably believes may threaten the RSV project’s success; if the Company undergoes a change in control; if there is a change in the Company’s tax status; if the RSV project is no longer aligned with the Gates Foundation’s programmatic strategy; or if the Company fails to comply with the grant agreement. Any grant funds that have not been used for, or committed to, the RSV project upon the expiration or termination of the grant agreement must be returned to the Gates Foundation or otherwise used as directed by the Gates Foundation.In August 2018, Arsanis entered into an amended and restated grant agreement which replaced the February 2017 grant agreement in its entirety. The amended and restated grant agreement includes amendments to conform to current Gates Foundation audit, reporting, and other administrative requirements, as well as to make the perpetual Gates Foundation license grant described below irrevocable.

During the three months ended March 31, 2019, the Company did not incur qualifying expenses under the letter agreement with the Gates Foundation.

Research and Development Incentive Program

The Company participates in a research and development incentive program provided by the Austrian government whereby the Company is entitled to reimbursement by the Austrian government for a percentage of qualifying research and development expenses incurred by the Company’s subsidiary in Austria. Under the program, the reimbursement rate for qualifying research and development expenses incurred by the Company through its subsidiary in Austria is 14% for the current year .

The Company recognizes incentive income from Austrian research and development incentives when qualifying expenses have been incurred, there is reasonable assurance that the payment will be received, and the consideration can be reliably measured. Management has assessed the Company’s research and development activities and expenditures to determine which activities and expenditures are likely to be eligible under the research and development incentive program described above. At each reporting date, management estimates the reimbursable incentive income available to the Company based on available information at the time.

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts in thousands, except share and per share amounts)

(Unaudited)

As of March 31, 2019, the Company recorded receivables for amounts due under the program of $1.6 million, which amounts were included in grant and incentive receivables in the consolidated balance sheet.

Janssen License and Option Agreement

On December 12, 2018, Arsanis entered into a patent license and option agreement with Janssen Pharmaceuticals, Inc. (“Janssen”), (the “Janssen License and Option Agreement”). Pursuant to the Janssen License and Option Agreement, Arsanis granted to Janssen (i) anon-exclusive license to specified patents in Arsanis’s portfolio related to the ASN200 E. coli program, and (ii) an option for Janssen to acquire these patents in the future if specified conditions are met. Janssen agreed to pay Arsanis $3.5 million within 15 business days after the December 12, 2018 effective date of the Janssen License and Option Agreement, in addition to a future $0.5 million payment in the event Janssen exercises its option to acquire the relevant patents. Arsanis received the $3.5 million payment from Janssen in December 2018 and recognized this amount as revenue. Such revenue is not reflected in the consolidated financial statements of the Company as it occurred prior to the Merger. Janssen’s option to the relevant patents will be recognized as revenue in full in the period in which the option exercise occurs.

14.

Income Taxes

The Company did not0t record a federal or state income tax benefit for its losses for the three months ended March 31, 2020 and 2019, and 2018respectively, due to the conclusion that a full valuation allowance is required against the Company’s deferred tax assets.

15.

Net Loss per Share

assets in all jurisdictions. The Company recorded a tax provision of $148 thousand related to local withholdings on a milestone payment received from a customer (see Note 3) in a foreign jurisdiction.

14. Net Loss per Share
Basic and diluted net loss per share attributable to common stockholders was calculated as follow:

   Three Months Ended
March 31,
 
       2019           2018     

Numerator:

    

Net loss

  $(10,873  $(7,367

Accruing dividends on Series A convertible preferred stock

   (592   (740
  

 

 

   

 

 

 

Net loss attributable to common stockholders

  $(11,465  $(8,107
  

 

 

   

 

 

 

Denominator:

    

Weighted average common shares outstanding—basic and diluted

   1,717,808    457,971 

Net loss per share attributable to common stockholders—basic and diluted

  $(6.67  $(17.70

Three Months Ended March 31,
(in thousands, except per share data)20202019
Numerator:
Net loss$(11,138) $(10,873) 
Accruing dividends on Series A convertible preferred stock—  (592) 
Net loss attributable to common stockholders$(11,138) $(11,465) 
Denominator:
Weighted average common shares outstanding—basic and diluted20,014  1,718  
Net loss per share attributable to common stockholders— basic and diluted$(0.56) $(6.67) 

The Company has included 107,371 shares of redeemable common stock, which were converted to common shares upon the Merger on March 13, 2019, in its computation of basic and diluted weighted average common shares outstanding for the three months ended March 31, 2019 and 2018 as this class of stock participatesparticipated in losses similarly to other common stockholders.

Basic and diluted weighted average common shares outstanding for the three months ended March 31, 2020 also includes the weighted average effect of 3,880,000 pre-funded warrants for the purchase of common shares for which the remaining unfunded exercise price is less than $0.01 per share.

The Company’s potentially dilutive securities included outstanding stock options convertible preferred stock, and warrants to purchase shares of convertible preferred stock for the three month period ended March 31, 2018 and included outstanding stock options and warrants to purchase common stock for the three month periodmonths ended March 31, 2020 and 2019. These potentially dilutive securities have been excluded from the computation of diluted net loss per share as the effect would be to reduce the net loss per share, and thus they are considered “anti-dilutive.” Therefore, the weighted average number of common shares outstanding used to calculate both basic and diluted net loss per share attributable to common stockholders is the same. The Company excluded the following potential common shares, presented based on amounts outstanding at each period end, and adjusted for the Exchange Ratio and Reverse Stock Split, from the computation of diluted net loss per share attributable to common stockholders for the periods indicated because including them would have had an anti-dilutive effect:

X4 PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIALS STATEMENTS

(Amounts
Three Months Ended
March 31,
20202019
Options to purchase common stock1,468,205  1,037,089  
Unvested restricted stock units101,519  —  
Warrants to purchase common stock (excluding prefunded warrants, which are included in basic shares outstanding)9,776,871  493,927  
11,346,595  1,531,016  


23


Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following information should be read in thousands, except share and per share amounts)

(Unaudited)

   Three Months Ended
March 31,
 
       2019           2018     

Options to purchase common stock

   1,037,089    538,429 

Convertible preferred stock (as converted to common stock)

   —      3,556,147 

Warrants to purchase common stock (presented on anas-converted, as exchanged, split-adjusted basis.

   493,927    423,416 
  

 

 

   

 

 

 
   1,531,016    4,517,992 
  

 

 

   

 

 

 

16.

Subsequent Events

On April 12, 2019, the Company entered into an underwriting agreementconjunction with Cowen and Company, LLC and Stifel, Nicolaus & Company, Incorporated, as representatives of the several underwriters named therein pursuant to which it sold 5,670,000 shares of common stock and, in lieu of common stock,pre-funded warrants to purchase 2,130,000 shares of common stock, and accompanying Class A warrants to purchase 3,900,000 shares of its common stock, at a price to the public of $11.00 per share and accompanying Class A warrants (or $10.999 perpre-funded warrant and accompanying Class A warrants). The Class A warrants have an exercise price of $13.20, will expire five years from the date of issuance, and are immediately exercisable with certain restrictions. The gross proceeds from the offering were $85.8 million before deducting underwriting discounts and estimated offering expenses. The offering closed on April 16, 2019.

X4 PHARMACEUTICALS, INC.

Item 2.

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

You should read the following discussion and analysis of our financial condition and results of operations together with ourunaudited condensed consolidated financial statements and the related notes thereto included elsewhere in this Quarterly Report on Form10-Q. Some of 10-Q and the audited financial information containedand the notes thereto included in thisour Annual Report on Form 10-K, which was filed with the Securities and Exchange Commission, or the SEC, on March 12, 2020, or the Annual Report. This discussion and analysis or set forth elsewhere in this Quarterly Report on Form10-Q, including information with respect to our plans and strategy for our business and related financing, includescontains forward-looking statements that involve significant risks uncertainties and assumptions.uncertainties. Our actual results, performance or experience could differ materially from what is indicated by any forward-looking statement due to various important factors, risks and uncertainties, including, but not limited to, those set forth under “Cautionary Note Regarding Forward-Looking Statements”“Risk Factors” included elsewhere in this Quarterly Report on Form10-Q or under “Risk Factors” in Item 1A of Part I of 10-Q.Such factors may be amplified by the COVID-19 pandemic and its potential impact on our Annual Report on Form10-K forbusiness and the fiscal year ended December 31, 2018, as updated by our Current Report on Form8-K filed on April 11, 2019 and our subsequent filings under the Exchange Act.

global economy.

Overview

We are a clinical-stage biopharmaceutical company focused on the discovery,research, development and commercialization of novel therapeutics for the treatment of rare diseases. Our pipeline is comprised of potentiallyfirst-in-class, oral, small molecule antagonists of chemokine receptor CXCR4, which have the potential to treat a broad range of rare diseases, including primary immunodeficiencies, or PIs, and certain types of cancer. PIs are a group of more than 250 rare, chronic disorders in which flaws in the immune system cause increased susceptibility to infections and, in some cases, increased risk of cancers. Within this broad disease classification, a number of PIs are attributed to the improper trafficking of immune cells related to the CXCR4 receptor and its ligand CXCL12. CXCR4 is stimulated by its only chemokine ligand, CXCL12, and plays a key role in enabling the trafficking of immune cells and effectively monitoring the function of the immune system, or immunosurveillance. Overstimulation of the CXCL12/CXCR4 pathway leads to inhibition of the immune response, or immunosuppression. Our lead product candidate, mavorixafor,(X4P-001), has is a potentially first-in-class, oral, allosteric antagonist of the CXCR4 receptor designed to correct the abnormal signaling caused by the receptor/ligand interaction and enable mobilization and trafficking of immune cells.

We have completed a Phase 2 clinical trial of mavorixafor in patients with Warts, Hypogammaglobulinemia, Infections, and Myelokathexis, or WHIM, syndrome, which is a PI. We plan to initiaterare, inherited primary immunodeficiency disease. In June 2019, we announced the initiation of 4WHIM, a pivotal, 52-week Phase 3 pivotalglobal clinical trial of mavorixafor for the treatment of patients with WHIM syndrome insyndrome. In November 2019, the second quarterU.S. Food and Drug Administration, or FDA, granted Breakthrough Therapy Designation for mavorixafor for the treatment of 2019 andadults with WHIM. We had previously disclosed that we plan to reporttop-line data from this trial in 2021. Beyond WHIM syndrome, we plan to initiate a Phase 1 clinical trial of mavorixafor in another PI, severe congenital neutropenia, or SCN, and a Phase 1/2 clinical trial of mavorixafor in Waldenström macroglobulinemia, or WM, in 2019. We expect to report data from the SCN trial in the middle of 2020 and data from the WM trial in the second half of 2020.2021. Given the delays in clinical site activation and the pace of enrollment, both of which we believe are directly related to the COVID-19 pandemic, we now expect that the timing of reporting of results will be delayed into 2022. We were founded and are led by a teamalso investigating mavorixafor in combination with extensive productaxitinib (Inlyta®), an FDA-approved small molecule tyrosine kinase inhibitor, in the Phase 2a portion of an open-label Phase 1/2 clinical trial in patients with clear cell renal cell carcinoma, or ccRCC. In September 2019, we announced positive results from the Phase 2a portion of this trial. We plan to pursue future development and potential commercialization expertise, including several former members of mavorixafor in ccRCC and other possible immuno-oncology indications only as part of a potential strategic collaboration.

In November 2019, we announced the Genzyme leadership team,initiation of a 14-day, proof-of-concept Phase 1b clinical trial of mavorixafor in patients with severe congenital neutropenia, or SCN. We currently expect that the reporting of initial data from the SCN trial will be delayed into 2021 due to delays in clinical site activation and the pace of enrollment caused by the COVID-19 pandemic. In December 2019, we are locatedannounced the initiation of a Phase 1b clinical trial of mavorixafor, in Cambridge, Massachusetts.

Recent Developments

Reverse Merger

On March 13, 2019, X4 Pharmaceuticals, Inc., formerly Arsanis, Inc. (the “Company”), completed a business combination with X4 Therapeutics, Inc., formerly X4 Pharmaceuticals, Inc. (“X4”),ibrutinib, in accordancepatients with Waldenström’s macroglobulinemia, or WM. We continue to expect to report initial data from the terms of the Agreement and Plan of Merger, dated as of November 26, 2018, as amended on December 20, 2018 and March 8, 2019 (the “Merger Agreement”), by and among the Company, X4 and Artemis AC Corp., a Delaware corporation and a wholly owned subsidiary of the Company (“Merger Sub”), pursuant to which, among other matters, Merger Sub merged with and into X4 with X4 continuing as a wholly owned subsidiary of the Company and the surviving corporation of the merger (the “Merger”). Following the completion of the Merger on March 13, 2019, the the Company effected a1-for-6 reverse stock split of its common stock (the “Reverse Stock Split”) and changed its name to “X4 Pharmaceuticals, Inc.” Following the completion of the Merger, the business conductedWM trial by the combined organization became primarilyend of 2020.


We are also advancing two early stage candidates towards the business conducted by X4. Unless noted otherwise, all referencesclinic: X4P-003, a second-generation CXCR4 antagonist designed to common stock share and per share amounts reflect the Reverse Stock Split. As used herein, the words “the Company,” “we,” “us,” and “our” refer to, for periods following the Merger, X4 Pharmaceuticals, Inc. (formerly Arsanis, Inc.), together with is direct and indirect subsidiaries, and for periods prior to the Merger, X4 Therapeutics, Inc. (formerly X4 Pharmaceuticals, Inc.), and its direct and indirect subsidiaries, as applicable. In addition, the word “Arsanis” refers to the Company prior to the completion of the Merger.

Under the terms of the Merger Agreement, at the closing of the Merger, the Company issued an aggregate of approximately 25.7 million shares of its common stock to X4 stockholders, based on a common stock exchange ratio of 0.5702 shares of the Company’s common stock for each share of X4’s common stock outstanding immediately prior to the Merger and a preferred stock exchange ratio of 0.5702 shares of the Company’s common stock for each share of X4 preferred stock outstanding prior to the Merger, in each case before taking into account of the Reverse Stock Split (each such exchange ratio, the “Exchange Ratio”). The Company also assumed all of the outstanding and unexercised stock options and warrants to purchase shares of X4 capital stock, with the number of shares subject to such options or warrants representing the right to purchase a number of shares of the Company’s common stock equal to 0.5702 multiplied by the number of shares of X4 capital stock previously represented by such options or warrants, before taking into account the Reverse Stock Split. The exercise prices of such options and warrants were also appropriately adjusted to reflect the Exchange Ratio of 0.5702, before taking into account the Reverse Stock Split. As a result of the Reverse Stock Split, the number of shares subject to such options and warrants and the exercise prices of such options and warrants were further adjusted by decreasing the number of shares subject to such options and warrants and increasing the exercise price of such options and warrants on a1-for-6

X4 PHARMACEUTICALS, INC.

Reverse Stock Split basis. The assumed options continue to be governed by the terms of the X4 Therapeutics, Inc. 2015 Employee, Director and Consultant Equity Incentive Plan, as amended, under which the options were originally granted (the “X4 Therapeutics Plan”). Upon the closing of the Merger, X4 Pharmaceuticals, Inc. also assumed the X4 Therapeutics Plan.

Immediately following the Merger and the Reverse Stock Split, there were approximately 6.7 million shares of the X4 Pharmaceuticals, Inc. common stock outstanding, and the former X4 Therapeutics, Inc. stockholders owned approximately 4.3 million shares, or 63.7% of the combined organization’s common stock outstanding. In addition, immediately following the Merger and the Reverse Stock Split, the former X4 Pharmaceuticals, Inc. optionholders held options to purchase approximately 0.8 million shares of the combined organization’s common stock and the former X4 Pharmaceuticals, Inc. warrantholders held warrants to purchase approximately 0.5 million shares of the combined organization’s common stock. Approximately 24.3% of our common stock outstanding immediately after the Merger is held by stockholders subject tolock-up restrictions, pursuant to which such stockholders have agreed, except in limited circumstances, not to sell or transfer, or engage in swap or similar transactions with respect to, shares of the combined organization’s common stock, including, as applicable, shares received in the Merger and issuable upon exercise of certain warrants and options, for a period of 180 days following the closing of the Merger.

The business combination has been accounted for as a “reverse merger” in accordance with GAAP. Under this method of accounting, X4 Therapeutics, Inc. is deemed to be the accounting acquirer for financial reporting purposes. This determination was primarily based on the facts that, immediately following the Merger: (i) the stockholders of X4 own a substantial majority of the voting rights in the combined organization, (ii) X4 designated a majority of the members of the initial board of directors of the combined organization and (iii) X4’s senior management hold all key positions in the senior management of the combined organization. Accordingly, for accounting purposes, the business combination has been treated as the equivalent of X4 issuing stock to acquire the net assets of Arsanis. As a result, as of the closing date of the Merger, the net assets of Arsanis have been recorded at their acquisition-date fair values in the financial statements of the combined entity and the reported operating results prior to the business combination will be those of X4. Subsequent to the closing of the Merger, the reported operating results will reflect those of the combined organization. In addition, transaction costs incurred by X4 in connection with the business combination have been expensed as incurred.

Our common stock remained listed on the Nasdaq Stock Market, with trading having commenced on a post-Reverse Stock Split basis and under the new name as of March 14, 2019. The trading symbol also changed on that date from “ASNS” to “XFOR.”

Equity Financing

On April 16, 2019, we sold 5,670,000 shares of common stock and, in lieu of common stock,pre-funded warrants to purchase 2,130,000 shares of common stock, and accompanying Class A warrants to purchase 3,900,000 shares of our common stock at a price to the public of $11.00 per share and accompanying Class A warrants (or $10.999 perpre-funded warrant and accompanying Class A warrants). The Class A warrants have an exercise priceenhanced pharmacokinetic profile relative to mavorixafor, potentially enabling improved patient compliance and ease of $13.20, will expire five years from the date of issuance,use; and are immediately exercisable with certain restrictions. The gross proceeds from the offering were $85.8 million before deducting underwriting discountsX4P-002, a CXCR4 antagonist designed to cross blood-brain barrier and estimated offering expenses.

Operating History

Since our inception in 2012, we have devoted substantially all of our efforts and financial resourcesprovide appropriate therapeutic exposures to organizing and staffing the company, business planning, raising capital, acquiring or discovering product candidates and securing related intellectual property rights and conducting discovery, research and development activities for our product candidates. We do not have any products approved for sale and have not generated any revenue from product sales. Through December 31, 2018, we have funded our operations primarily with proceeds from sales of preferred stock and proceeds from the issuance of convertible debt and borrowings under loan and security agreements. Through December 31, 2018, we had received net proceeds of $73.7 million from sales of our preferred stock (including proceeds from convertible debt, which converted into preferred stock) and gross proceeds of $16.0 million from borrowings under loan and security agreements, net of amounts used to repay prior loan and security agreements. During the three months ended March 31, 2019 as a result of our Merger with Arsanis, we acquired $25.8 million of cash and short-term marketable securities of Arsanis.

We have incurred significant operating losses since inception. Our ability to generate product revenue sufficient to achieve profitability will depend heavily on the successful development and eventual commercialization of one or more of our current or future product candidates. Our net losses were $10.9 million and $6.2 million for the three months ended March 31, 2019 and 2018, respectively. As of March 31, 2019, we had an accumulated deficit of $90.1 million. We expect to continue to incur significant expenses and increasing operating losses for at least the next several years. We expect that our expenses and capital requirements will increase substantially in connection with our ongoing activities, particularly if and as we:

treat brain cancers.

conduct additional clinical trials for our product candidates;


continue to discover and develop additional product candidates;

acquire orin-license other product candidates and technologies;

X4 PHARMACEUTICALS, INC.

maintain, expand and protect our intellectual property portfolio;

hire additional clinical, scientific and commercial personnel;

establish a commercial manufacturing source and secure supply chain capacity sufficient to provide commercial quantities of any product candidates for which we may obtain regulatory approval;

seek regulatory approvals for any product candidates that successfully complete clinical trials;

establish a sales, marketing and distribution infrastructure to commercialize any products for which we may obtain regulatory approval; and

add operational, financial and management information systems and personnel, including personnel to support our product development and planned future commercialization efforts, as well as to support our efforts as a public reporting company.

We will not generate revenue from product sales unless and until we successfully complete clinical development and obtain regulatory approval for our product candidates. If we obtain regulatory approval for any of our product candidates and do not enter into a commercialization partnership, we expect to incur significant expenses related to developing our internal commercialization capability to support product sales, marketing and distribution. Further, we expect to incur additional costs associated with operating as a public company.

As a result, we will need substantial additional funding to support our continuing operations and pursue our growth strategy. Until such time as we can generate significant revenue from product sales, if ever, we expect to finance our operations through the sale of equity, debt financings or other capital sources, which may include collaborations with other companies or other strategic transactions. We may not be able to raise additional funds or enter into such other agreements or arrangements when needed on favorable terms, or at all. If we fail to raise capital or enter into such agreements as and when needed, we may have to significantly delay, reduce or eliminate the development and commercialization of one or more of our product candidates or delay our pursuit of potentialin-licenses or acquisitions.

Because of the numerous risks and uncertainties associated with product development, we are unable to predict the timing or amount of increased expenses or when or if we will be able to achieve or maintain profitability. Even if we are able to generate product sales, we may not become profitable. If we fail to become profitable or are unable to sustain profitability on a continuing basis, then we may be unable to continue our operations at planned levels and be forced to reduce or terminate our operations.

We expect that our existing cash and cash equivalents of $22.3 million as of March 31, 2019, together with the $78.9 million of net proceeds from our equity financing in April 2019, will be sufficient to fund our operating expenses, capital expenditure requirements and debt service payments for at least the next 12 months. See “ —Liquidity and Capital Resources.”    We will need to raise additional capital to finance our operations, which cannot be assured. See Note 1 of our consolidated financial statements included elsewhere in this Quarterly Report on Form10-Q for additional information on our assessment.

Components of Results of Operations

Revenue

To date, we have not generated any revenue from product sales and do not expect to generate anysignificant revenue from the sale of our products in the foreseeable future. If our development efforts for our product candidates are successful and result in regulatory approval, we may generate revenue in the future from product sales. We cannot predict if, when, or to what extent we will generate revenue from the commercialization and sale of our product candidates. We may never succeed in obtaining regulatory approval for any of our product candidates.

Operating Expenses


24



Our Pipeline
xfor-20200331_g1.jpg

COVID-19 Business Update
With the global spread of the ongoing COVID-19 pandemic in the first quarter of 2020, we have implemented business continuity measures designed to address and mitigate the impact of the COVID-19 pandemic on our employees, our business, including our clinical trials, supply chains and third-party providers. We continue to closely monitor the COVID-19 situation as we evolve our business continuity plans and response strategy. In March 2020, the Governor of Massachusetts ordered all individuals living in the Commonwealth of Massachusetts to stay at their place of residence for an indefinite period of time (subject to certain exceptions to facilitate authorized necessary activities) to mitigate the impact of the COVID-19 pandemic so our workforce transitioned to working remotely. We are currently preparing plans to reopen our office to allow employees to return to the office, which we expected will be based on a phased approach that is principles-based and local in design, with a focus on patient continuity, employee safety and optimal work environment. While we are experiencing limited financial impacts at this time, given the global economic slowdown, the overall disruption of global healthcare systems and the other risks and uncertainties associated with the pandemic, our business, financial condition, results of operations and growth prospects could be materially adversely affected.

Clinical Development
With respect to clinical development, we are implementing risk-based approaches in accordance with FDA and EMA COVID Guidance, that include virtual and remote patient visits and monitoring where possible, while prioritizing patient safety, maintaining trial continuity and preserving data integrity. On account of COVID-19, for several of our clinical development programs, we are experiencing, and expect to continue to experience, a disruption or delay in our ability to initiate trial sites and/or enroll and assess patients.We could also see an impact on the ability to supply study drug, report trial results, or interact with regulators, ethics committees or other important agencies due to limitations in regulatory authority employee resources or otherwise. In addition, we rely on contract research organizations, or CROs, or other third parties to assist us with clinical trials, and we cannot guarantee that they will continue to perform their contractual duties in a timely and satisfactory manner as a result of the COVID-19 pandemic. If the COVID-19 pandemic continues and persists for an extended period of time, we could experience significant disruptions to our clinical development timelines, which would adversely affect our business, financial condition, results of operations and growth prospects.

Supply Chain
As for our third-party manufacturers, distributors and other partners, we are working closely with them to manage our supply chain activities and mitigate potential disruptions to our clinical supply as a result of the COVID-19 pandemic. We currently have business continuity plans in place and expect to have adequate global supply of mavorixafor through 2020. To best
25


support our patients, we are working with our vendors to provide the option for direct-to-patient drug shipments from clinical sites. If the COVID-19 pandemic persists for an extended period of time and begins to impact essential distribution systems we could experience disruptions to our supply chain and operations, which would adversely impact our ability to carry out our clinical trials.

Regulatory Activities
With respect to regulatory activities, it is possible that we could experience delays in the timing of review and/or our interactions with the FDA or the European Commission, or EC, due to, for example, absenteeism by governmental employees, inability to conduct planned physical inspections related to regulatory approval, or the diversion of efforts of the FDA or EC and attention to approval of other therapeutics or other activities related to COVID-19, which could delay approval decisions with respect to the preparation and submission to the FDA of a new drug application, or NDA, or the preparation and submission to the EC of a Marketing Authorization Application, or MAA, and otherwise delay or limit our ability to make planned regulatory submissions or obtain new product approvals.

Financial Impact
The COVID-19 pandemic continues to rapidly evolve and has already resulted in a significant disruption of global financial markets. If the disruption persists and deepens, we could experience an inability to access additional capital, which could in the future negatively affect our operations.
Results of Operations
Comparison of the Three Months Ended March 31, 2020 and 2019 
The following table summarizes the results of our operations for the three months ended March 31, 2020 and 2019 (in thousands):
Three Months Ended March 31,
20202019Change
(in thousands)
License revenue$3,000  $—  $3,000  
Operating expenses:
Research and development8,911  5,655  3,256  
General and administrative4,670  4,783  (113) 
Total operating expenses13,581  10,438  3,143  
Loss from operations(10,581) (10,438) (143) 
Other expense:
Interest income296  69  227  
Interest expense(584) (399) (185) 
Change in fair value of preferred stock warrant and derivative liabilities—  (105) 105  
Loss on extinguishment of debt(162) —  (162) 
Other income41  —  41  
Total other expense, net(409) (435) 26  
Loss before provision for income taxes(10,990) $(10,873) $(117) 
Provision for income taxes148  $—  $148  
Net loss$(11,138) $(10,873) $(265) 

License Revenue
For the three months ended March 31, 2020, we recorded $3.0 million in revenue related to a license agreement as discussed below. There was no similar revenue recorded in the three months ended March 31, 2019.

In July 2019, we entered into a license agreement, or the Abbisko agreement, with Abbisko Therapeutics Co., Ltd., or Abbisko. Under the terms of the Abbisko agreement, we granted Abbisko the exclusive right to develop, manufacture and commercialize mavorixafor in the Abbisko Territory (as defined in the Abbisko agreement), which includes mainland China, Taiwan, Hong Kong and Macau. The Abbisko agreement provides Abbisko with exclusive rights in the Abbisko Territory to develop and commercialize mavorixafor in combination with checkpoint inhibitors or other agents in multiple oncology indications. We retain the full rest-of-world rights to develop and commercialize mavorixafor outside of the Abbisko Territory for all indications and we have the ability to utilize data generated pursuant to the Abbisko collaboration for rest-of-world
26


development. We have entered into a separate clinical supply agreement whereby we will provide Abbisko with a clinical supply to support their clinical trials.
Following the closing of a qualified financing (as defined in the Abbisko agreement), Abbisko is required pay us a one-time, non-refundable, non-creditable financial milestone payment of $3.0 million. Abbisko achieved the qualified financing in March 2020 and, as a result, we were eligible to receive the milestone, which was paid to us in April 2020. We are also eligible to receive potential development and regulatory milestone payments, which vary based on the number of indications developed, and potential commercial milestone payments based on annual net sales of mavorixafor-based licensed products.
We evaluated the agreement under Accounting Standards Codification Topic 606, or ASC 606, and determined the agreement contained a single performance obligation related to the exclusive license to develop and commercialize mavorixafor and the transfer of know-how that was satisfied at the inception of the arrangement. Upon entering into the agreement, the transaction price related to the transfer of the license and know-how was fully constrained and we ascribed no transaction price to the development, regulatory and commercial milestones under the most-likely amount method. We concluded that any consideration related to the initial transfer of the license and know-how will be recognized when it is probable that Abbisko will achieve the related financial milestone and other operational milestones. As a result of Abbisko’s achievement of the qualified financing, we reversed the constraint related to this milestone and recognized $3.0 million of license revenue for the three months ended March 31, 2020.
We have determined that the future sale of clinical supplies represents optional goods that will be subject to the customer's future purchasing decisions and does not represent a performance obligation in the agreement. We expect to recognize revenue for future clinical supply at a point in time when such clinical supply is delivered to Abbisko in the future. With respect to the remaining operational milestones, we will re-evaluate the transaction price, including its estimated variable consideration for milestones included in the transaction price and all constrained amounts, in each reporting period and as uncertain events are resolved or other changes in circumstances occur.

Research and Development Expenses

Research and development expenses consist primarily of costs incurred in connection with the discovery and development of our product candidates. We expense researchcandidates, including employee salaries and development costs as incurred. Theserelated expenses, include:

employee-related expenses, including salaries, related benefits and stock-based compensation expense, for employees engaged in research and development functions;

expenses incurred in connection with the preclinical and clinical development of our product candidates, including under agreements with third parties, such as consultants and contract research organizations, or CROs;

X4 PHARMACEUTICALS, INC.

the cost of manufacturing drug products for use in our preclinical studies and clinical trials, including under agreements with third parties, such as consultants and contract manufacturing organizations, or CMOs;

facilities, depreciation and other expenses, which include direct or allocated expenses for rent and maintenance of facilities and insurance;

costs related to compliance with regulatory requirements; and

payments made under third-party licensing agreements.

We recognize externalexpense research and development costs based on an evaluation of the progress to completion of specific tasks using information provided to us by our service providers. This process involves reviewing open contractsas incurred.


Research and purchase orders, communicating with our personnel to identify services that have been performed on our behalf,Development Expenses
Three Months Ended
March 31,
20202019Change
(in thousands)
Direct research and development expenses by product candidate:
Mavorixafor (X4P-001)$4,539  $2,851  $1,688  
X4P-002359  84  275  
X4P-003102   94  
    Unallocated expense3,911  2,712  1,199  
Total research and development expenses$8,911  $5,655  $3,256  
Research and estimating the level of service performed and the associated cost incurreddevelopment expenses were $8.9 million for the service when we have not yet been invoiced or otherwise notified of actual costs. Nonrefundable advance paymentsthree months ended March 31, 2020, compared to $5.7 million for goods or services to be received in the future for usethree months ended March 31, 2019. The increase in research and development activities are recorded as prepaid expenses. Such amounts are recognized asexpenses for the three months ended March 31, 2020 was primarily due to an expense whenincrease of $1.7 million in direct expenses related primarily to our mavorixafor program, including the goods have been deliveredclinical trial costs incurred related to our Phase 3 WHIM program and costs incurred related to our Phase 1b clinical trials of mavorixafor in patients with SCN or the services have been performed, or when it is no longer expected that the goods will be delivered or the services rendered. Upfront payments, milestone payments and annual maintenance fees under license agreements are expensed in the period in which they are incurred.

Our directWM. In addition, research and development expenses are tracked by product candidate and consist primarily of external costs, such as fees paidincreased due to outside consultants, CROs, CMOs and research laboratoriesa $1.3 million increase in connection withcompensation expenses due to additional personnel within our preclinical development, process development, manufacturing, regulatory and clinical development activities. Our direct research and development expenses by product candidate also include fees incurred under third-party license agreements. We do not allocate employee costs and costs associated with our discovery efforts, laboratory supplies and facilities, including depreciation or other indirect costs, to specific product candidates because these costs are deployed across multiple programs and, as such, are not separately classified. We use internal resources primarily to conduct our research and discoveryoperations functions as well as for managing our preclinical development, process development, manufacturing and clinical development activities. These employees work across multiple programs and, therefore, we do not track our costs by product candidate.

The table below summarizescompensation expenses related to our research and development expenses incurredfacility in Vienna,

27


Austria. These costs were partially offset by product candidate:

   Three Months Ended
March 31,
 
   2019   2018 

Mavorixafor

  $2,851   $3,010 

X4P-002

   84    —   

X4P-003

   8    —   

Unallocated research and development expenses

   2,712    1,734 
  

 

 

   

 

 

 

Total research and development expenses

  $5,655   $4,744 
  

 

 

   

 

 

 

Research and development activities are central to our business model. Product candidatesa decrease in later stages of clinical development generally have higher developmentoutside contractor costs than those in earlier stages of clinical development, primarily due to the increased size and duration of later-stage clinical trials. As a result, we expect that our research and development expenses will increase substantially over the next several years as we planhave hired company personnel to initiate a Phase 3 pivotal clinical trial of mavorixafor for the treatment of patients with WHIM syndrome in the second quarter of 2019 and to initiate a Phase 1 clinical trial of mavorixafor in SCN and a Phase 1/2 clinical trial of mavorixafor in WM in 2019. In addition, we expect research and development expenses to increase related to conducting preclinical development and pursuing initial clinical stages of our product candidatesX4P-002 andX4P-003.

The successful development and commercialization of our product candidates is highly uncertain. At this time, we cannot reasonably estimate or know the nature, timing and costs of the efforts that will be necessary to complete the preclinical and clinical development of any of our product candidates. This is due to the numerous risks and uncertainties associated with product development and commercialization, including the following:

the timing and progress of preclinical and clinical development activities;

the number and scope of preclinical and clinical programs that we decide to pursue;

our ability to maintain our current research and development programs and to establish new ones;

establishing an appropriate safety profile with Investigational New Drug, or IND,-enabling studies;

successful patient enrollment in, and the initiation and completion of, clinical trials;

X4 PHARMACEUTICALS, INC.

the receipt of regulatory approvals from applicable regulatory authorities;

the successful completion of clinical trials with safety, tolerability and efficacy profiles that are satisfactory to the U.S Food and Drug Administration, or FDA, or any comparable foreign regulatory authority;

the timing, receipt and terms of any marketing approvals from applicable regulatory authorities;

our ability to establish new licensing or collaboration arrangements;

establishing agreements with third-party manufacturers for clinical supply for our clinical trials and commercial manufacturing, if any of our product candidates is approved;

development and timely delivery of clinical-grade and commercial-grade drug formulations that can be used in our clinical trials and for commercial launch;

obtaining, maintaining, defending and enforcing patent claims and other intellectual property rights;

launching commercial sales of our product candidates, if approved, whether alone or in collaboration with others; and

maintaining a continued acceptable safety profile of the product candidates following approval.

A change in the outcome of any ofreplace these variables with respect to the development of our product candidates could significantly change the costs and timing associated with the development of that product candidate. We may never succeed in obtaining regulatory approval for any of our product candidates.

prior outside resources.

General and Administrative Expenses

General and administrative expenses consist primarily of salaries and related costs, including stock-based compensation, for personnel in executive, finance and administrative functions. General and administrative expenses also include direct and allocated facility-related costs as well as professional fees for legal, patent, consulting, investor and public relations, accounting, and audit services.

We anticipate that our general

General and administrative expenses will increase in the future as we increase our headcount to support our continued research activities and development of our product candidates. We also anticipate that we will incur increased accounting, audit, legal, regulatory, compliance and director and officer insurance costs as well as investor and public relations expenses associated with being a public company.

Other Income (Expense), Net

Interest Income

Interest income consists of interest earned on our cash equivalents, which consist of money market funds. Our interest income has not been significant due to low interest rates earned on invested balances.

Interest Expense

For the three months ended March 31, 2019, interest expense primarily consists of interest on outstanding borrowings under our Hercules Loan Agreement, which was entered into with Hercules Capital, Inc., or Hercules, in October 2018. Interest expense in the current period also includes interest on loans acquired from Arsanis (see discussion of the FFG loan agreement in “Liquidity and Capital Resources”). For the three months ended March 31, 2018, interest expense consisted of interest on outstanding borrowing under the 2016 loan and security agreement with Silicon Valley Bank, or SVB, which we refer to as the SVB Loan Agreement, as well as amortization of debt issuance costs and accretion of a final payment payable upon the maturity or the repayment in full of all obligations under the SVB Loan Agreement. In October 2018, in connection with entering into the Hercules Loan Agreement, all amounts due under the SVB Loan Agreement, including unpaid principal of $4.3 million and a final payment $0.3 million, were repaid with proceeds from the Hercules Loan Agreement, and the SVB Loan Agreement was terminated. We expect that our interest expense will increase in 2019 as compared to 2018 in connection with our Hercules Loan Agreement, under which we borrowed $8.0 million in October 2018 and an additional $2.0 million in December 2018, and as a result of the FFG loan agreement, under which borrowings were $9.5 million as of March 31, 2019.

Change in Fair Value of Preferred Stock Warrant Liability

In connection with our Series A and Series B preferred stock financings in 2015, 2017 and 2018, and entering into the SVB Loan Agreement in 2016 and in connection with entering into the Hercules Loan Agreement in October 2018, we issued warrants to purchase shares of our preferred stock. Due to the liquidation requirements of these preferred shares, we classified these warrants as a liability on our consolidated balance sheet, which was remeasured to fair value at each reporting date with changes in the fair value reported as a component of other income (expense), net in our consolidated statements of operations and comprehensive loss. Upon the closing of the Merger on March 13, 2019, all of our outstanding preferred stock warrants become exercisable for Arsanis common

X4 PHARMACEUTICALS, INC.

stock; accordingly, the liability as of March 13, 2019 for these warrants was remeasured to fair value and reclassified to additionalpaid-in capital. As a result, following the closing of the Merger, we will no longer recognize changes in the fair value of the warrant liability as other income (expense), net in our consolidated statements of operations and comprehensive loss.

Change in Fair Value of Derivative Liability

Our license agreement with Genzyme, a Sanofi company, contains a contingent payment obligation that requires that we make a payment to Genzyme upon a change of control event. The contingent payment obligation meets the definition of a derivative instrument. We classify this derivative as a liability on our consolidated balance sheet that we remeasure to fair value at each reporting date, and we recognize changes in the fair value of the derivative liability as a component of other income (expense), net in our consolidated statement of operations and comprehensive loss. We will continue to recognize changes in the fair value of the derivative liability until a change of control event occurs or until the license agreement is terminated. The Merger with Arsanis qualifies as a change of control event, as defined in the license agreement.

Loss on Preferred Stock Repurchase Liability

In October 2017, we entered into a stock repurchase agreement with a holder of Series Seed preferred stock for the repurchase of shares of Series Seed preferred stock. We concluded that the arrangement was a freestanding financial instrument that was required to be recorded as a liability at fair value. Upon entering into the repurchase agreement, we recorded a preferred stock repurchase liability on our consolidated balance sheet of $587 for the fair value of the financial instrument and recognized a corresponding expense as a component of other income (expense), net in our consolidated statements of operations and comprehensive loss. We subsequently remeasured the repurchase liability to fair value at each reporting date through the settlement date of the repurchase agreement in January 2018 and recognized changes in the fair value of the preferred stock repurchase liability as a component of other income (expense), net in our consolidated statements of operations and comprehensive loss for the three months ended March 31, 2018.

Income Taxes

Since our inception, we have not recorded any income tax benefit for the net losses we have incurred in each year or for our earned research and development tax credits, as we believe, based upon the weight of available evidence, that it is more likely than not that all of our net operating loss carryforwards and tax credits will not be realized. Accordingly, we have recorded a full valuation allowance against our net deferred tax assets at each balance sheet date.

Results of Operations

Comparison of the Three Months Ended March 31, 2019 and 2018

The following table summarizes our results of operations for the three months ended March 31, 2019 and 2018:

   Three Months Ended
March 31,
     
   2019   2018   Change 
   (in thousands) 

Operating expenses:

      

Research and development

  $5,655   $4,744   $911 

General and administrative

   4,783   $1,366    3,417 
  

 

 

   

 

 

   

 

 

 

Total operating expenses

   10,438    6,110    4,328 
  

 

 

   

 

 

   

 

 

 

Loss from operations

   (10,438   (6,110   (4,328
  

 

 

   

 

 

   

 

 

 

Other income (expense):

      

Interest income

   69    69    —   

Interest expense

   (399   (169   (230

Change in fair value of preferred stock warrant and derivative liabilities

   (105   (1,157   1,052 
  

 

 

   

 

 

   

 

 

 

Total other income (expense), net

   (435   (1,257   822 
  

 

 

   

 

 

   

 

 

 

Net loss

  $(10,873  $(7,367  $(3,506
  

 

 

   

 

 

   

 

 

 

X4 PHARMACEUTICALS, INC.

Research and Development Expenses

   Three Months Ended
March 31,
     
   2019   2018   Change 
   (in thousands) 

Direct research and development expenses by product candidate:

      

Mavorixafor(X4P-001)

  $2,851   $3,010   $(159

X4P-002

   84    —      84 

X4P-003

   8    —      8 

Unallocated research and development expenses:

      

Personnel related (including stock-based compensation)

   2,200    1,034    1,166 

Other

   512    699    (187
  

 

 

   

 

 

   

 

 

 

Total research and development expenses

  $5,655   $4,744   $911 
  

 

 

   

 

 

   

 

 

 

Research and development expenses were $5.7 million for the three months ended March 31, 2019, compared to $4.7 million for the three months ended March 31, 2018. The increase of $1.0 million was primarily due to an increase of $1.0 million in unallocated research and development costs, primarily associated with personnel and other costs associated with the research and development site in Vienna, Austria, acquired in the Merger and an increase of $0.2 million in direct expenses of our mavorixafor development program, partially offset by a net decrease of $0.2 million in external costs related to our product candidates.

Direct expenses of our mavorixafor product candidate decreased by $0.2 million in the three months ended March 31, 2019,2020, compared to the three months ended March 31, 2018. The decrease was primarily due to a decrease in costs associated with product manufacturing and clinical trials as the WHIM Phase 2 and Phase 1/2 for the treatment of patients with clear cell renal cell carcinoma, or ccRCC, wind down. We expect that our research and development expenses for mavorixafor will increase substantially over the next several years as we plan to initiate a Phase 3 pivotal clinical trial of mavorixafor for the treatment of patients with WHIM syndrome in the second quarter of 2019 and to initiate a Phase 1 clinical trial of mavorixafor in SCN and a Phase 1/2 clinical trial of mavorixafor in WM in 2019.

Direct expenses of ourX4P-002 product candidate increased $0.1 million in three months ended March 31, 2019, compared to the three months ended March 31, 2018. We had no direct costs related to theX4P-002 product candidate during the three months ended March 31, 2018 as we paused the development ofX4P-002 in favor of focusing our resources on the development of our mavorixafor product candidate. We expect that our research and development expenses forX4P-002 will increase over the next several years as we resume work onX4P-002’s preclinical development and initial clinical stage activities.

Unallocated research and development expenses were $2.7 million for the three months ended March 31, 2019, compared to $1.7 million for the three months ended March 31, 2018. The increase of $1.0 million was primarily due to an increase of $1.2 million in personnel-related costs due to the hiring of additional personnel in our research and development function, partially offset by a net decrease of $0.2 million in external costs related to our product candidates.

General and Administrative Expenses

General and administrative expenses were $4.8 million for the three months ended March 31, 2019, compared2019. We expect general and administrative expenses will grow during 2020 as we continue to $1.4 millionbuild out the general and administrative functions.

Other Expense, Net
Three Months Ended
March 31,
20202019Change
(in thousands)
Interest income$296  $69  $227  
Interest expense(584) (399) (185) 
Change in fair value of preferred stock warrant and derivative liabilities—  (105) 105  
Loss on extinguishment of debt(162) —  (162) 
Other expense41  —  41  
Total other expense, net$(409) $(435) $26  
Other expenses, net, for the three months ended March 31, 2018. The increase2020 was consistent with the same period in the prior year. Higher interest expense and losses on extinguishment of $3.4 million was primarilydebt in the current period were offset by higher interest income and lower changes in the fair value of preferred stock warrants and derivatives liabilities, which are no longer remeasured to fair value due to a $1.9 million increase in professional feesthe conversion and a $1.4 million increase in personnel-related costs. Professional fees increased due to higher audit, legal and market research expenses particularly related to the merger, as well as legal costs incurred in connection with maintaining and registering worldwide patents and costs associated with our ongoing business operations. Personnel-related costs for the three months ended March 31, 2019 and 2018 included stock-based compensationsettlement of $0.3 million and $0.1 million, respectively.

X4 PHARMACEUTICALS, INC.

Other Income (Expense), Net

Other income (expense), net was $0.4 million of expensethese liabilities during the three months ended March 31, 2019, compared to $1.3 million of expense2019.

Provision for Income Taxes
For the three months ended March 31, 2018. The decrease2020 and 2019, we did not record an income tax benefit for our losses as we have determined that a full valuation allowance is required on our net deferred tax assets in other expense, net was primarily due to a $1.1 million decrease in the net expense generated from the change in the fair value of our preferred stock warrant and derivative liabilities inall jurisdictions. For the three months ended March 31, 2019, partially offset by2020, we recorded a $0.2$0.1 million increaseincome tax provision related to local withholdings related to a milestone payment received from a customer in interest expense.

a foreign jurisdiction.

Liquidity and Capital Resources

Source of Liquidity
Since our inception, we have not generated revenue from any sources, including from product sales, and have incurred significant operating losses and negative cash flows from our operations. We have not yet commercialized any products and we do not expect to generate revenue from sales of any products for several years, if at all. We have funded our operations to date primarily with proceeds from sales of common stock, warrants and prefunded warrants for the purchase of our preferred stock and our common stock, sales of preferred stock, proceeds from the issuance of convertible debt and borrowings under loan and security agreements. Through March 31, 2019, we have received net proceeds of $73.7 million from sales of our preferred stock, including proceeds from convertible debt, which converted into preferred stock, and gross proceeds of $6.0 million from borrowings under the SVB Loan Agreement. In 2018, we received gross proceeds of $10.0 million from borrowings under the Hercules Loan Agreement and repaid all amounts due under the SVB Loan Agreement. In March 2019, we completed the Mergera merger with Arsanis and acquired $26.4 million of its cash, cash equivalents and restricted cash owned by Arsanis. On April 16,cash. In addition, in 2019, we raised $78.9$139.4 million, after deducting underwriting discounts and estimatednet of offering costs, through the sale of 5,670,000 sharespublic offerings of common stock, and, in lieu of common stock,pre-fundedprefunded warrants to purchase 2,130,000 shares of common stock, and accompanying Class A warrants to purchase 3,900,000 shares of common stock.

As of March 31, 2020, our common stockcash and cash equivalents were $115.1 million and our restricted cash balance was $1.9 million. We believe that our current liquidity will be sufficient to meet our projected operating, investing and debt service requirements for at least the next twelve months. We expect that our research and development and general and administrative expenses will continue to increase and, as a priceresult, we will need additional capital to fund our future operations, which we may raise through a combination of equity offerings, debt financings, other third-party funding, marketing and distribution arrangements and other collaborations, strategic alliances and licensing arrangements. The COVID-19 pandemic continues to rapidly evolve and has already resulted in a significant disruption of global financial markets. If the publicdisruption persists and deepens, we could experience an inability to access additional capital when and if needed. If we are unable to obtain funding, we could be forced
28


to delay, reduce or eliminate some or all of $11.00 per shareour research and accompanying Class A warrants (or $10.999 perpre-funded warrantdevelopment programs, product portfolio expansion or commercialization efforts, which would adversely affect our business prospects, or we may be unable to continue operations.

Loan Facility with Hercules Capital, Inc.
In March 2020 and accompanying Class A warrants).

June 2019, we received $4.9 million and $9.8 million, respectively, in net proceeds as a result of refinancing our loan facility with Hercules Capital Inc., or Hercules. Under this facility, as amended most recently in March 2020, we have borrowed $25.0 million in term loans to date and may borrow an additional $15.0 million in term loans upon the achievement of certain operational milestones through June 2022 and an additional $10.0 million in term loans through December 2022, at the sole discretion of Hercules. Principal payments under the loan facility with Hercules commence in February 2022 and the agreement matures in July 2023.

Cash Flows

The following table summarizes our sources and uses of cash flow activities for each of the periods presented:

   Three Months Ended
March 31,
 
   2019   2018 
   (in thousands) 

Net cash used in operating activities

  $(11,750  $(6,182

Net cash provided by investing activities

   26,406    —   

Net cash provided by (used in) financing activities

   113    (1,660

Impact of foreign exchange on cash and restricted cash

   (21   —   
  

 

 

   

 

 

 

Net increase (decrease) in cash, cash equivalents and restricted cash

  $14,748   $(7,842
  

 

 

   

 

 

 

Three Months Ended March 31,
20202019
(in millions)
Net loss$(11.1) $(10.9) 
Adjustments to reconcile net loss to net cash used in operating activities1.1  0.7  
Changes in operating assets and liabilities(5.5) (1.5) 
Net cash used in operating activities(15.5) (11.7) 
Net cash (used in) provided by investing activities(0.6) 26.4  
Net cash provided by financing activities5.0  —  
Net (decrease) increase in cash, cash equivalents and restricted cash$(11.1) $14.7  
Cash, cash equivalents and restricted cash, beginning of period$128.1  $8.5  
Cash, cash equivalents and restricted cash, end of period$117.0  $23.2  

Operating Activities

During the three months ended March 31, 2019,2020, net cash used in operating activities was $11.8$15.5 million, of cash,primarily resulting from our net loss of $10.9$11.1 million, adjusted for noncash expenses of $1.1 million and net cash used in changes in our operating assets and liabilities of $1.5 million, partially offset by noncash$5.5 million. Noncash expenses of $0.6 million. primarily includes stock-based compensation expense and non-cash interest expense.Net cash used in changes in our operating assets and liabilities primarily consisted of an increase in accounts receivable as a result of revenue recorded during the first quarter of 2020 and an increase in prepaid expenses due to the timing of payments related to our outsourced clinical trials. Net cash used in operating activities for the three months ended March 31, 2019 consistedwas $11.7 million, primarily reflecting our net loss of a $0.6$10.9 million, increase in prepaid expenses and other current assets, a $2.0 million decrease in accrued expenses, and a $0.2 million decrease in lease liabilities, partially offset by noncash expenses of $0.7 million and a $1.3 million increasechange in accounts payable. The increase in prepaid expensesoperating assets and other current assets was primarily due to increases in prepaid insurance amounts. The decrease in accrued expenses was primarily due to paymentsliabilities of employee bonuses and payments to vendors related to professional fees and services. The increase in accounts payable was primarily due to the timing of vendor invoicing and payments.

$1.5 million.

Investing ActivitiesDuring the three months ended March 31, 2018, operating activities used $6.2 million of cash resulting from our net loss of $7.4 million, and net2020, cash used in changes in our operating assets and liabilitiesinvesting activities of $0.2 million, offset bynon-cash expenses of $1.3 million. Net cash used in changes in our operating assets and liabilities for the three months ended March 31, 2018 consisted of a $0.6 million decrease in accounts payable and a $0.2 million decrease in lease liabilities, partially offset by a $0.2 million decrease in prepaid expenses and other current assets and a $0.3 million increase in accrued expenses. The decrease in accounts payable wasrelated primarily due to timing of vendor invoicing and payments. The decrease in lease liabilities was primarily due to lease paymentslaboratory equipment purchases related to the Cambridge office lease. The decrease in prepaid expenses and other current assets was primarily due to the expensing of prepaid amounts paid to CROs for preclinical development and clinical trial activities. The increase in accrued expenses was primarily due to higher professional fees and increases inour research and development activities and costs.

X4 PHARMACEUTICALS, INC.

Investing Activities

center in Vienna, Austria. During the three months ended March 31, 2019, net cash provided by investing activities consisted primarily of $26.4 million of cash and restricted cash acquired in connection with theour Merger. There was no net cash provided by investing activities during

Financing Activities   During the three months ended March 31, 2018.

Financing Activities

2020, net cash provided by financing activities was $5.0 million, consisting primarily of proceeds from the refinancing of our loan facility with Hercules. During the three months ended March 31, 2019, net cash provided by financing activities was $0.1 million, consisting primarily of proceeds from the exercise of stock options.

During the three months ended March 31, 2018, net cash used in financing activities was $1.7 million, consisting primarily of $1.1 million in the repurchase of Series Seed convertible preferred stock, principal repayments of $0.5 million under the SVB Loan Agreement, and $0.1 million in payments of issuance costs related to convertible preferred stock.

Loan and Security Agreements

Loan and Security Agreement with Silicon Valley Bank

In October 2016, we entered into the SVB Loan Agreement, which provided for aggregate maximum borrowings of up to $10.0 million, consisting of a term loan of up to $6.0 million, which we borrowed in June 2017, and, subject to specified conditions, an additional term loan of up to $4.0 million available for borrowing until December 31, 2017. In October 2018, in connection with entering into the Hercules Loan Agreement as described below, we terminated the SVB Loan Agreement and repaid all amounts due under the SVB Loan Agreement, including unpaid principal of $4.3 million, a final payment of $0.3 million, a prepayment premium of $87 thousand and accrued interest of $23 thousand. We accounted for the repayment of amounts as an extinguishment of the SVB Loan Agreement and recognized a loss on extinguishment of debt of $0.2 million within other income (expense), net in the consolidated statement of operations and comprehensive loss. The loss on extinguishment of debt was calculated as the difference between the reacquisition price of the borrowings under the SVB Loan Agreement of $4.7 million and the carrying value of the debt under the SVB Loan Agreement of $4.5 million. Our annual effective interest rate of the SVB Loan Agreement was approximately 11.8% the period from January 1, 2018 through the date of repayment of all borrowings under the SVB Loan Agreement.

Loan and Security Agreement with Hercules Capital, Inc.

In October 2018, we entered into the Hercules Loan Agreement, which provided for aggregate borrowings of up to $13.0 million, consisting of (i) a term loan of up to $8.0 million, which was available upon entering into the agreement, (ii) subject to specified financing conditions, an additional term loan of up to $2.0 million, available for borrowing from January 1, 2019 to March 31, 2019, and (iii) subject to specified financing conditions and the receipt of the second tranche $2.0 million term loan described above, an additional term loan of up to $3.0 million, available for borrowing until March 31, 2019. In October 2018, we borrowed $8.0 million under the Hercules Loan Agreement.

In December 2018, we entered into the First Amendment to the Hercules Loan Agreement (the “First Amendment”), which amended the available borrowing dates of the second tranche from between January 1, 2019 and March 31, 2019 to between December 11, 2018 and December 14, 2018 and amended the term loan maturity date to November 1, 2021. In December 2018, we borrowed the additional $2.0 million provided under the Hercules Loan Agreement, as amended by the First Amendment.

In March 2019, the conditions necessary for borrowing the remaining $3.0 million under the Hercules Loan Agreement were not met and the borrowing capacity expired at that time.

Borrowings under the Hercules Loan Agreement bear interest at variable rates, with the first tranche bearing interest at a variable rate equal to the greater of (i) 9.5% or (ii) 9.5% plus The Wall Street Journal prime rate minus 5.25%, the second tranche bearing interest at a variable rate, subject to completion of specified financing conditions, equal to either (A) the greater of (i) 9.5% or (ii) 9.5% plus The Wall Street Journal prime rate minus 5.25% or (B) the greater of (i) 8.75% or (ii) 8.75% plus The Wall Street Journal prime rate minus 5.25%, and the third tranche bearing interest at a variable rate equal to the greater of (i) 8.75% or (ii) 8.75% plus The Wall Street Journal prime rate minus 5.25%. In an event of default, as defined, and until such event is no longer continuing, the interest rate applicable to borrowings under the Hercules Loan Agreement would be increased by 4.0%. As of March 31, 2019 and December 31, 2018, the interest rate applicable to borrowings under the Hercules Loan Agreement was 9.75%.

Borrowings under the Hercules Loan Agreement are repayable in monthly interest-only payments through August 2019, or a later date upon achievement of specified conditions, and in equal monthly payments of principal and accrued interest from September 2019 until the maturity date of the loan, which is either, (i) if the second tranche is not borrowed, November 2021 or, (ii) if the second tranche is

X4 PHARMACEUTICALS, INC.

borrowed, May 2022. At our option, we may prepay all, but not less than all, of the outstanding borrowings, subject to a prepayment premium of up to 2.0% of the principal amount outstanding as of the date of repayment. The Hercules Loan Agreement also provides for a final payment, payable upon maturity or the repayment in full of all obligations under the agreement, of up to $953. An aggregate final payment of $794 payable in connection with the $8,000 term loan and the $2,000 term loan is being accreted to interest expense to increase the carrying value of the debt over the term of the loan using the effective interest method.

In addition, the Hercules Loan Agreement contains a redemption feature that, upon an event of default, provides Hercules the option to accelerate and demand repayment of the debt, including a prepayment premium. We concluded that the redemption feature meets the definition of a derivative instrument as the repayment of the debt contains a substantial premium, resulting in the redemption feature not being clearly and closely related to the host instrument. We recorded the issuance-date fair value of the derivative liability of $18 as a debt discount and as a derivative liability on our consolidated balance sheet.

Borrowings under the Hercules Loan Agreement are collateralized by substantially all of our personal property and other assets, including our intellectual property until a specified financing condition is met. Under the Hercules Loan Agreement, we have agreed to affirmative and negative covenants to which we will remain subject until maturity or repayment in full. The covenants include maintaining a minimum liquidity amount of the lesser of (i) 125% of outstanding borrowings under the Hercules Loan Agreement and (ii) 100% of our cash and cash equivalents in an account in which Hercules has a first priority security interest as well as restrictions on our ability to incur additional indebtedness, pay dividends, encumber our intellectual property, or engage in certain fundamental business transactions, such as mergers or acquisitions of other businesses. Obligations under the Hercules Loan Agreement are subject to acceleration upon occurrence of specified events of default, including payment default, insolvency and a material adverse change in our business, operations or financial or other condition.

In connection with entering into the Hercules Loan Agreement in October 2018, we issued to Hercules warrants for the purchase of 210,638 shares of Series B convertible preferred stock at an exercise price of $1.88 per share. These warrants were immediately exercisable and expire in October 2028.

In connection with entering into the First Amendment in December 2018, we agreed to issue to Hercules warrants for the purchase of a specified number of shares of convertible preferred stock or, if issued following the Merger with Arsanis, a specified number of shares of common stock of the combined organization, at an aggregate exercise price of $99,000. The warrants were to be issued at the earliest of (i) June 30, 2019, (ii) the earlier to occur of (a) the date we prepay the outstanding borrowings or (b) the date the outstanding borrowings become due and payable, or (iii) on or before the fifth business day following the closing of or the announcement of the termination of our merger with Arsanis. The number of shares of convertible preferred stock issuable upon exercise of these warrants was determined to be 52,659 shares, calculated by dividing $99,000 by the $1.88 price per share paid by investors that purchased shares of Series B convertible preferred stock in September 2018. On March 18, 2019, as a result of the closing of the Merger with Arsanis on March 13, 2019, we issued to Hercules warrants for the purchase of 5,000 shares of common stock of the combined organization at an exercise price of $19.80 per share, each of which reflected the share Exchange Ratio of1-for-0.5702 applied in the Merger as well as the6-for-1 reverse stock split effected by the combined organization on March 13, 2019.

On October 19, 2018 and December 11, 2018, the dates we entered into the Hercules Loan Agreement and the First Amendment, respectively, we recorded the aggregate initial fair value of the warrants of $0.1 million as a preferred stock warrant liability, with a corresponding amount recorded as a debt discount on our consolidated balance sheet. As of March 13, 2019, the fair value of the warrants was $0.3 million.

In connection with entering into the Hercules Loan Agreement and the First Amendment, we also paid Hercules $92,000 of upfront fees, including facility, due diligence and legal fees associated with entering into the agreement, which were also recorded as a debt discount. The debt discount is reflected as a reduction of the carrying value of long-term debt on our consolidated balance sheet and is being amortized to interest expense over the term of the loan using the effective interest method.

We recognized aggregate interest expense under the Hercules Loan Agreement of $0.3 million and $0 during three months ended March 31, 2019 and 2018, respectively, which includednon-cash interest expense of $0.1 million related to the accretion of the debt discount and the final payment. As of March 31, 2019, and December 31, 2018, the unamortized debt discount was $0.2 million and $0.2 million, respectively. The annual effective interest rate of the Hercules Loan Agreement as of March 31, 2019 and December 31, 2018 was approximately 14.2%, respectively.

FFG Borrowings

Between September 2011 and March 2017, Arsanis GmbH, a subsidiary of Arsanis, entered into a series of funding agreements with Österreichische Forschungsförderungsgesellschaft mbH, or FFG, that provided for loans and grants to fund qualifying research and development expenditures of Arsanis GmbH on aproject-by-project basis, as approved by FFG. As of March 31, 2019, the outstanding principal amount under loans from FFG was $9.5 million, including $2.9 million of current portion.

X4 PHARMACEUTICALS, INC.

On February 4, 2019, Arsanis GmbH, received letters from counsel to FFG alleging that we breached reporting, performance and other obligations in connection with the grants and loans made by FFG to Arsanis GmbH between September 2011 and March 2017 to fund qualifying research and development expenditures. The letters demanded the immediate repayment of all such subsidies. On March 8, 2019, Arsanis announced that it had entered into a settlement agreement, or the Settlement Agreement, with FFG in respect of these allegations and demands for repayment. Pursuant to the terms of the Settlement Agreement, in exchange for FFG’s waiver of all claims against Arsanis and Arsanis GmbH except for its claims for repayment of the loans and regular interest, including its waiver of claims for repayment of grants and interest exceeding regular interest, subject to compliance by us and Arsanis GmbH with the terms of the Settlement Agreement, Arsanis GmbH has agreed to repay the outstanding loan principal (plus regular interest accrued thereon) on an accelerated payment schedule of three years instead of the original five years, with the final accelerated installment due and payable on June 30, 2021. The Settlement Agreement also contains certain other restrictive covenants, including a requirement to maintain, as of April 30, 2019, a minimum cash balance equal to 70% of the then-outstanding principal amount of the loans at Arsanis GmbH in an account held with an Austrian bank, until all of the loans have been repaid and subject to other terms specified in the Settlement Agreement.

Amounts due under the FFG loans bear interest at varying fixed rates ranging from 0.75% to 2.0% per annum. Interest is payable semi-annually in arrears, with all accrued interest and principal due upon maturity. After giving effect to the Settlement Agreement, the FFG loans mature at varying dates between March 2019 and June 2021. The FFG loans are not secured by any of our assets. We may be required to return all or a portion of the FFG loans and/or grants if we do not comply with the terms of the related FFG funding agreements and related guidelines, including specified requirements as to continued operations with respect to certain locations and funded projects, or if we fail to comply with the terms of the Settlement Agreement.

Funding Requirements

We expect our expenses to increase substantially in connection with our ongoing activities, particularly as we advance the preclinical activities and clinical trials of our product candidates in development. In addition, following the closing of the Merger, we expect to continue to incur additional costs associated with operating as a public company. The timingBecause of the numerous risks and uncertainties associated with research, development and commercialization of pharmaceutical product candidates, we are unable to estimate the exact amount of our operating expendituresworking capital requirements. Our future funding requirements will depend largely on:

the scope, number, initiation, progress, timing, costs, design, duration, any potential delays, and results of clinical trials and nonclinical studies for our current or future product candidates, particularly our Phase 3 pivotal clinical trial of mavorixafor for the treatment of patients with WHIM syndrome, our Phase 1 clinical trial of mavorixafor in SCN and our Phase 1/2 clinical trial of mavorixafor in WM, [and our Phase 1/2 for the treatment of ccRCC]

on and could increase significantly as a result of many factors, including:

the scope, number, initiation, progress, timing, costs, design, duration, any potential delays, and results of clinical trials and nonclinical studies for our current or future product candidates, particularly our Phase 3

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pivotal clinical trial of mavorixafor for the treatment of patients with WHIM syndrome, our Phase 1b clinical trial of mavorixafor in SCN and our Phase 1b clinical trial of mavorixafor in WM;
diversion of healthcare resources away from the conduct of clinical trials as a result of the ongoing COVID-19 pandemic, including the diversion of hospitals serving as our clinical trial sites and hospital staff and independent physicians supporting the conduct of our clinical trials;
the interruption of key clinical trial activities, such as clinical trial site monitoring, due to limitations on travel, quarantines or social distancing protocols imposed or recommended by federal or state governments, employers and others in connection with the ongoing COVID-19 pandemic;
the clinical development plans we establish for these product candidates;

the number and characteristics of product candidates and programs that we develop or mayin-license;

the outcome, timing and cost of regulatory reviews, approvals or other actions to meet regulatory requirements established by the FDA and comparable foreign regulatory authorities, including the potential for the FDA or comparable foreign regulatory authorities to require that we perform more studies for our product candidates than those that we currently expect;

our ability to obtain marketing approval for our product candidates;

the cost of filing, prosecuting, defending and enforcing our patent claims and other intellectual property rights covering our product candidates, including any such patent claims and intellectual property rights that we have licensed from Genzyme pursuant to the terms of our license agreement with Genzyme;

our ability to maintain, expand and defend the scope of our intellectual property portfolio, including the cost of defending intellectual property disputes, including patent infringement actions brought by third parties against us or our product candidates;

the cost and timing of completion of commercial-scale outsourced manufacturing activities with respect to our product candidates;

our ability to establish and maintain licensing, collaboration or similar arrangements on favorable terms and whether and to what extent we retain development or commercialization responsibilities under any new licensing, collaboration or similar arrangement;

the cost of establishing sales, marketing and distribution capabilities for any product candidates for which we may receive regulatory approval in regions where we choose to commercialize our products on our own;

X4 PHARMACEUTICALS, INC.

the success of any other business, product or technology that we acquire or in which we invest;

the costs of acquiring, licensing or investing in businesses, product candidates and technologies;

our need and ability to hire additional management and scientific and medical personnel;

the costs to continue to operate as a public company, in the United States, including the need to implement additional financial and reporting systems and other internal systems and infrastructure for our business;

market acceptance of our product candidates, to the extent any are approved for commercial sale; and

the effect of competing technological and market developments.

the ongoing impact of the COVID-19 pandemic on our operations.
We expect that our existing cash and cash equivalents including $78.9 million of net proceeds from our April 2019 public offering and the cash acquired from Arsanis will be sufficient to fund our operating expenses, capital expenditure requirements and debt service payments for at least the next 12twelve months.

We have based this estimate on assumptions that may prove to be wrong, and we could exhaust our capital resources sooner than we expect.


Until such time, if ever, as we can generate substantial product revenue, we expect to finance our cash needs through a combination of equity offerings, debt financings, collaborations, strategic alliances, and marketing, distribution or licensing arrangements with third parties. In January 2019, Arsanis filedThe COVID-19 pandemic continues to rapidly evolve and has already resulted in a universal shelf registration statement on FormS-3 withsignificant disruption of global financial markets.If the SEC,disruption persists and deepens, we could experience an inability to access additional capital, which was declared effectivecould in February 2019, and pursuant to which Arsanis registered for sale up to $150 million of any combination ofthe future negatively affect our common stock, preferred stock, debt securities, warrants and/or units from time to time and at prices and on terms that we may determine. Subsequently, in April 2019, we sold 5,670,000 shares of common stock and, in lieu of common stock,pre-funded warrants to purchase 2,130,000 shares of common stock, and accompanying Class A warrants to purchase 3,900,000 shares of our common stock at a price to the public of $11.00 per share and accompanying Class A warrants (or $10.999 perpre-funded warrant and accompanying Class A warrants) under this shelf registration statement for gross proceeds of approximately $85.8 million. As of May 1, 2019, approximately $64.2 million of securities remain available for issuance under the shelf registration statement.operations. To the extent that we raise additional capital through the sale offuture equity offerings or convertible debt securities,financings, the ownership interest of our stockholders may be materially diluted, and the terms of such securities could include liquidation or other preferences that adversely affect the rights of our stockholders. Debt financing and preferred equity financing, if available, may involve agreements that include restrictive covenants that limit our
30


ability to take specified actions, such as incurring additional debt, making capital expenditures or declaring dividends. If we raise additional funds through collaborations, strategic alliances or marketing, distribution or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs or product candidates or grant licenses on terms that may not be favorable to us. If we are unable to raise additional funds through equity or debt financings or other arrangements when needed, we may be required to delay, reduce or eliminate our product development efforts or future commercialization efforts, or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves.



Loan and Security Agreements with Hercules Capital, Inc.

In October 2018, we entered into a Loan and Security Agreement, as amended, or the Hercules Loan Agreement, with Hercules, pursuant to which we borrowed $10.0 million under a term loan. In June 2019, we refinanced the Hercules Loan Agreement, as amended, and entered into an Amended and Restated Loan and Security Agreement, or the Amended and Restated Loan Agreement, with Hercules. The Amended and Restated Loan Agreement provided for aggregate maximum borrowings of $35.0 million, of which $10.0 million was previously outstanding and $10.0 million in new borrowings. On March 13, 2020, we entered into a First Amendment to the Amended and Restated Loan and Security Agreement, or the Amended Loan Agreement, with Hercules, which provides for aggregate maximum borrowings of up to $50.0 million. TheAmended Loan Agreement provides for the following borrowing abilities:
(i)   a term loan of $25.0 million (including the $20.0 million previously outstanding under the Amended and Restated Loan Agreement) and an additional $5.0 million drawn at the closing of the first amendment on March 13, 2020;
(ii)   subject to the achievement of certain performance milestones and other conditions, we have the right to request that Hercules make additional term loan advances in an aggregate amount of up to $7.5 million through June 30, 2021;
(iii)  subject to the achievement of certain performance milestones and conditions, we have the right to request that Hercules make additional term loan advances in an aggregate amount of up to $7.5 million through June 30, 2022; and
(iv)  subject to Hercules investment committee’s sole discretion, we have the right to request that Hercules make additional term loan advances in an aggregate amount of up to $10.0 million through December 31, 2022.

Borrowings under the Amended Loan Agreement bear interest at a variable rate equal to a per annum rate of interest equal to the greater of either (i) 3.75% plus the prime rate as reported in The Wall Street Journal, and (ii) 8.75%. In an event of default, as defined in the Amended Loan Agreement, and until such event is no longer continuing, the interest rate applicable to borrowings under the Amended Loan Agreement would be increased by 4.0%.

Borrowings under the Amended Loan Agreement are repayable in monthly interest-only payments through January 1, 2022, and in equal monthly payments of principal and accrued interest from February 1, 2022 until the maturity date of the loan, which is July 1, 2023. We may prepay all, but not less than all, of the outstanding borrowings, subject to a prepayment premium of up to 2.0%, 1.0% or 0.5% of the principal amount outstanding as of the date of repayment, in each case depending on when such repayment is made. In addition, the Amended Loan Agreement provides for payments of (i) $0.8 million payable upon the earlier of November 1, 2021 or the repayment in full of all obligations under the Amended Loan Agreement, and (ii) 4.0% of the aggregate principal amount of all Term Loan Advances (as defined in the Amended Loan Agreement) drawn under the Amended Loan Agreement, payable upon the earlier of the maturity of the Amended Loan Agreement or the repayment in full of all obligations under the Amended Loan Agreement.

Borrowings under the Amended Loan Agreement are collateralized by substantially all of our personal property and other assets except for intellectual property (but including rights to payment and proceeds from the sale, licensing or disposition of the intellectual property). Under the Amended Loan Agreement, we have agreed to affirmative and negative covenants to which it will remain subject until maturity or repayment of the loan in full. The covenants include, without limitation:

(a)Effective immediately upon the date the outstanding principal amount of the advances under theAmended Loan Agreement exceeds $25.0 million, we at all times thereafter shall maintain cash in an account or accounts in which Hercules has a first priority security interest, in an aggregate amount greater than or equal to the greater of (i) $30.0 million or (ii) 6 multiplied by a metric based on prior months’ cash expenditures, or RML; provided, however, that from and after our achievement of certain performance milestones, the required level shall be reduced to the greater of (x) $20.0 million, or (y) 3
31


multiplied by the current RML; and provided further, that subject to the achievement of certain milestones, this covenant shall be extinguished.

(b)Restrictions on our ability to incur additional indebtedness, pay dividends, encumber its intellectual property, or engage in certain fundamental business transactions, such as mergers or acquisitions of other businesses, with certain exceptions.

Our obligations under theAmended Loan Agreement are subject to acceleration upon occurrence of specified events of default, including payment default, insolvency and a material adverse change in our business, operations or financial or other condition. In addition, under the Amended Loan Agreement, Hercules has the right to participate, subject to exceptions as provided in the Amended Loan Agreement, in a cumulative amount of up to $3.0 million in the aggregate, of which $1.0 million has already been exercised, in any future offering of our equity securities for cash that is solely for financing purposes and is broadly marketed to multiple investors.
Critical Accounting Policies and Significant Judgments and Estimates

Our condensed consolidated financial statements are prepared in accordance with generally accepted accounting principles in the United States. The preparation of our condensed consolidated financial statements and related disclosures requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, costs and expenses, and the disclosure of contingent assets and liabilities in our financial statements. We base our estimates on historical experience, known trends and events and various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. We evaluate our estimates and assumptions on an ongoing basis. Our actual results may differ from these estimates under different assumptions or conditions.

While


During the three months ended March 31, 2020, there were no material changes to our significantcritical accounting policies are described in more detail inas reported for the year ended December 31, 2019 as part of our Annual Report.In addition, see Note 2 toof our consolidated financial statements included elsewhere in this quarterly report, we believe thatunder the followingheading “Recent Accounting Pronouncements” for new accounting policies are those most criticalpronouncements or changes to the judgments and estimates used inaccounting pronouncements during the preparation of our consolidated financial statements.

X4 PHARMACEUTICALS, INC.

Accrued Research and Development Expenses

As part of the process of preparing our consolidated financial statements, we are required to estimate our accrued research and development expenses. This process involves reviewing open contracts and purchase orders, communicating with our applicable personnel to identify services that have been performed on our behalf and estimating the level of service performed and the associated cost incurred for the service when we have not yet been invoiced or otherwise notified of actual costs. The majority of our service providers invoice us in arrears for services performed, on apre-determined schedule or when contractual milestones are met; however, some require advance payments. We make estimates of our accrued expenses as of each balance sheet date in the consolidated financial statements based on facts and circumstances known to them at that time. We periodically confirm the accuracy of these estimates with the service providers and makes adjustments, if necessary. Examples of estimated accrued research and development expenses include fees paid to:

vendors in connection with preclinical development activities;

CROs and investigative sites in connection with preclinical studies and clinical trials; and

CMOs in connection with the production of preclinical and clinical trial materials.

We base the expense recorded related to external research and development on our estimates of the services received and efforts expended pursuant to quotes and contracts with multiple CMOs and CROs that supply, conduct and manage preclinical studies and clinical trials on our behalf. The financial terms of these agreements are subject to negotiation, vary from contract to contract and may result in uneven payment flows. There may be instances in which payments made to our vendors will exceed the level of services provided and result in a prepayment of the expense. Payments under some of these contracts depend on factors such as the successful enrollment of patients and the completion of clinical trial milestones. In accruing service fees, we estimate the time period over which services will be performed and the level of effort to be expended in each period. If the actual timing of the performance of services or the level of effort varies from the estimate, we adjust the accrual or the amount of prepaid expenses accordingly.

Although we do not expect our estimates to be materially different from amounts actually incurred, our understanding of the status and timing of services performed relative to the actual status and timing of services performed may vary and may result in reporting amounts that are too high or too low in any particular period. To date, there have not been any material adjustments to our prior estimates of accrued research and development expenses.

Stock-Based Compensation

Historically, we measured all stock-based awards granted to employees and directors based on the fair value on the date of the grant and recognize compensation expense for those awards, net of estimated forfeitures, over the requisite service period, which is generally the vesting period of the respective award. We issue stock-based awards with only service-based vesting conditions and record the expense for these awards using the straight-line method. We have not issued any stock-based awards with performance-based vesting conditions.

For stock-based awards granted tonon-employee consultants, compensation expense is recognized over the period during which services are rendered by suchnon-employee consultants until completed. At the end of each financial reporting period prior to completion of the service, the fair value of these awards is remeasured using the then-current fair value of our common stock and updated assumption inputs in the Black-Scholes option-pricing model.

The fair value of each stock option grant is estimated on the date of grant using the Black-Scholes option-pricing model, which uses as inputs the fair value of our common stock and assumptions we make for the volatility of our common stock, the expected term of the stock options, the risk-free interest rate for a period that approximates the expected term of our stock options and their expected dividend yield.

Prior to the closing of the Merger and the listing of our common stock on the Nasdaq Capital Market, our board of directors historically determined, as of the date of each option grant, with input from our management, the assistance of a third-party valuation specialist and the guidance outlined in the American Institute of Certified Public Accountants’ Accounting and Valuation Guide, Valuation of Privately-Held-Company Equity Securities Issued as Compensation, the estimated fair value of our common stock on the date of grant based on a number of objectives and subjective factors

Since the Merger and the listing of our common stock on the Nasdaq Capital Market, we have relied on the market price of our common stock to determine the fair value on the date of grant for purposes of determining our stock-based compensation expense.

X4 PHARMACEUTICALS, INC.

The assumptions underlying these valuations represent the best estimates of our management, which involve inherent uncertainties and the application of our judgment. As a result, if factors or expected outcomes change and we use significantly different assumptions or estimates, the resulting share-based compensation expense could be materially different.

Valuation of Preferred Stock Warrant Liability

In connection with our preferred stock financings in 2015, 2017, and 2018, and entering into the SVB Loan Agreement in 2016, we issued warrants to purchase shares of our preferred stock. We classify these warrants as liabilities on our consolidated balance sheets because these warrants are freestanding financial instruments that may require us to transfer assets upon exercise. The warrant liability was initially recorded at fair value upon the date of issuance of each warrant and is subsequently remeasured to fair value at each reporting date. Changes in the fair value of the warrant liability are recognized as a component of other income (expense), net in our consolidated statements of operations and comprehensive loss. Upon the closing of the Merger onthree months ended March 13, 2019, all of our outstanding preferred stock warrants become exercisable for Arsanis common stock; accordingly, the liability as of March 13, 2019 for these warrants was remeasured to fair value and reclassified to additionalpaid-in capital. As a result, following the closing of the Merger, we no longer recognize changes in the fair value of the warrant liability as other income (expense), net in our consolidated statement of operations and comprehensive loss.

To value the preferred stock warrants, we used various valuation methods, including the Monte Carlo method, the option-pricing method and the hybrid method, all of which incorporate assumptions and estimates, We assess these assumptions and estimates on a quarterly basis as additional information impacting the assumptions is obtained. Estimates and assumptions impacting the fair value measurement include the fair value per share of the underlying shares of our Series A and Series B preferred stock, risk-free interest rate, expected dividend yield, expected volatility of the price of the underlying preferred stock, and the remaining contractual term of the warrants (except for the warrants that would be automatically exercised upon an initial public offering, in which case the remaining estimated term to automatic exercise was used). The most significant assumption in the Monte Carlo method, the option-pricing method and the hybrid method impacting the fair value of the preferred stock warrants is the fair value of our preferred stock as of each remeasurement date. We determine the fair value per share of the underlying preferred stock by taking into consideration the most recent sales of our preferred stock, results obtained from third-party valuations and additional factors that are deemed relevant.

Upon the closing of the Merger, pursuant to the Merger Agreement, all of our outstanding preferred stock warrants have become exercisable for Arsanis common stock; accordingly, the fair value of the warrant liability for these warrants at that time will be reclassified to additionalpaid-in capital. As a result, following the closing of the Merger, we will no longer recognize changes in the fair value of the warrant liability as other income (expense), net in our consolidated statement of operations and comprehensive loss.

Valuation of Derivative Liability

Our license agreement with Genzyme contains a contingent payment obligation that requires that we make a cash payment to Genzyme upon a change of control event. The contingent payment obligation meets the definition of a derivative instrument as the contingent payment obligation is not clearly and closely related to our host instrument and is a cash-settled liability. Accordingly, we classify this derivative as a liability on our consolidated balance sheet. The derivative liability was initially recorded at fair value on the date of entering into the license agreement and is subsequently remeasured to fair value at each reporting date. Changes in the fair value of the derivative liability are recognized as a component of other income (expense), net in our consolidated statement of operations and comprehensive loss. The Merger qualifies as a change of control event, as defined in the license agreement, but results in no payment being due to Genzyme under the license agreement. On March 13, 2019, the closing date of the Merger with Arsanis, this derivative liability was remeasured to fair value, which was $0, and subsequent changes in fair value will no longer be recognized in the consolidated statements of operations and comprehensive loss because the contingent payment obligation expired at that time.

The fair value of the derivative liability was estimated at each reporting date based, in part, on the results of third-party valuations, which were prepared using the option-pricing method or the hybrid method, each of which considered as inputs the type, timing and probability of the occurrence of a change of control event, the potential amount of the payment under potential exit scenarios, the fair value per share of the underlying common stock and the risk-adjusted discount rate.

31, 2020.

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Valuation of Preferred Stock Repurchase Liability

In October 2017, we entered into a stock repurchase agreement with a holder of Series Seed preferred stock for the repurchase of shares of Series Seed preferred stock. We classified this repurchase agreement as a liability on our consolidated balance sheet as the repurchase agreement was a freestanding financial instrument that required us to transfer assets upon settlement. The preferred stock repurchase liability was initially recorded at fair value on the date of entering into the repurchase agreement and was subsequently remeasured to fair value at each reporting date and upon the settlement date until the settlement of the repurchase agreement, which occurred in January 2018. Changes in the fair value of the preferred stock repurchase liability were recognized as a component of other income (expense), net in our consolidated statement of operations and comprehensive loss. The fair value of the preferred stock repurchase liability was estimated by multiplying (i) the 598,975 shares of Series Seed preferred stock that we agreed to repurchase by (ii) the difference between the agreed repurchase price of $1.88 per share and the fair value per share of the Series Seed preferred stock, which result approximated the fair value of the preferred stock repurchase liability given the short duration of the contract. We determined the fair value per share of the Series Seed preferred stock by taking into consideration the most recent sales of our preferred stock, results obtained from third-party valuations and additional factors that were deemed relevant. In January 2018, the Series Seed preferred stock repurchase agreement was settled through our repurchase of the shares.

Emerging Growth Company and Smaller Reporting Company Status

We are an “emerging growth company,” or EGC, as defined in the Jumpstart Our Business Startups Act of 2012, or the JOBS Act, We will remain an EGC until the earlier of (1) the last day of the fiscal year following the fifth anniversary of the completion of Arsanis’ initial public offering (December 31, 2022), (2) the last day of the fiscal year in which we have total annual gross revenue of at least $1.07 billion, (3) the last day of the fiscal year in which we are deemed to be a “large accelerated filer” as defined inRule 12b-2 under the Exchange Act, which would occur if the market value of our common stock held bynon-affiliates exceeded $700.0 million as of the last business day of the second fiscal quarter of such fiscal year or (4) the date on which we have issued more than $1.0 billion innon-convertible debt securities during the prior three-year period.Act. The JOBS Act permitpermits an EGC to take advantage of an extended transition period to comply with new or revised accounting standards applicable to public companies until those standards would otherwise apply to private companies. We have irrevocably elected to “opt out” of this provision and, as a result, we will comply with new or revised accounting standards when they are required to be adopted by public companies that are not EGCs.

In addition, we are also a smaller reporting company as defined in the Exchange Act. We may continue to be a smaller reporting company even after we are no longer an emerging growth companies.

company. We may take advantage of certain of the scaled disclosures available to smaller reporting companies and will be able to take advantage of these scaled disclosures for so long as (i) our voting and non-voting common stock held by non-affiliates is less than $250.0 million measured on the last business day of our second fiscal quarter or (ii) our annual revenue is less than $100.0 million during the most recently completed fiscal year and our voting and non-voting common stock held by non-affiliates is less than $700.0 million measured on the last business day of our second fiscal quarter.

Off-Balance Sheet Arrangements

We did not have during the periods presented, and we do not currently have, anyoff-balance sheet arrangements, as defined in the rules and regulations of the SEC.

Recently Issued Accounting Pronouncements

A description of recently issued accounting pronouncements that may potentially impact our financial position and results of operations is disclosed in Note 2 to our consolidated financial statements included elsewhere in this quarterly report on Form10-Q.

Item 3.

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Not required for


Item 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
As a smaller reporting companies.

Item 4.

CONTROLS AND PROCEDURES

company, as defined by Rule 12b-2 of the Exchange Act and in Item 10(f)(1) of Regulation S-K, we are electing scaled disclosure reporting obligations and therefore are not required to provide the information requested by this Item.

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Item 4 CONTROLS AND PROCEDURES
Evaluation of Disclosure Controls and Procedures

Our principal executive officer


Management’s Evaluation of our Disclosure Controls and principal financial officer, after evaluating the effectiveness of ourProcedures
We maintain disclosure controls and procedures (as defined in Exchange Act Rules13a-15(e) and15d-15(e)) as of the end of the period covered by thisForm 10-Q, have concluded that based on such evaluation, our disclosure controls and procedures were effectiveare designed to ensure that information required to be disclosed by us in the reports that we file or submit under the Securities Exchange Act of 1934, as amended, or the Exchange Act, is recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms and is accumulated and communicated to our management, including our principal executive officer and principal financial officers, or persons performing similar functions, as appropriate,officer, to allow timely decisions regarding required disclosure.


Our management, with the participation of our principal executive officer and principal financial officer, evaluated the effectiveness of our disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) as of March 31, 2020, and have concluded that, based on such evaluation, our disclosure controls and procedures were effective as of March 31, 2020 at the reasonable assurance level. Our management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives, and management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures.
Changes in Internal Controls

During the three months ended March 31, 2019, we implemented certain internal controls as a result of our adoption of the new lease standard on January 1, 2019 as well as internal controls related to the business combination. Control Over Financial Reporting

There were no other changes in our internal control over financial reporting (as defined in Rules 13a–15(f) and 15d–15(f) under the Exchange Act) that occurred during the three months ended March 31, 20192020 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II: OTHER INFORMATION

Item 1.

LEGAL PROCEEDINGS

Item 1. LEGAL PROCEEDINGS
From time to time, we may become involved in legal proceedings or be subject to claims arising in the ordinary course of our business. We are not currently a party to any material legal proceedings.

Item 1A.

RISK FACTORS

proceedings and we are not aware of any pending or threatened legal proceedings against us that we believe could have a material adverse effect on our business, operating results or financial condition.

Item 1A. RISK FACTORS

An investment in our securities involves a high degree of risk. You should carefully consider the following information about these risks, together with the other information appearing elsewhere in this Quarterly Report on Form 10-Q, including our unaudited condensed financial statements and related notes hereto, before deciding to invest in our common stock. The occurrence of any of the following risks could have a material adverse effect on our business, financial condition, results of operations and future growth prospects or cause our actual results to differ materially from those contained in forward-looking statements we have made in this report and those we may make from time to time. In these circumstances, the market price of our common stock could decline and you may lose all or part of your investment. We cannot assure you that any of the events discussed below will not occur.

Risks Related to Our Financial Position and Need for Additional Capital

We have incurred significant losses since our inception. We expect to continue to incur losses for the foreseeable future and we may never achieve or maintain profitability.

We are a clinical-stage biopharmaceutical company with a limited operating history. Since inception, we have incurred significant operating losses. Without regard to the historical operating results of our predecessor, Arsanis, our net losses were $52.8 million, $33.3 million and $22.0 million for the years ended December 31, 2019, 2018 and 2017 respectively, our net losses were $11.1 million for the three months ended March 31, 2020 and we had an accumulated deficit of $143.2 million as of March 31, 2020. To date, we have financed our operations primarily through issuances of shares of common stock warrants and prefunded warrants for the purchase of our preferred stock and our common stock, sales of preferred stock, proceeds from the issuance of convertible debt and borrowings under loan and security agreements. In 2019, we completed a merger with Arsanis and acquired its $26.4 million of cash, cash equivalents and restricted cash. Since inception, we have devoted substantially all of our efforts to research and preclinical and clinical development of our product candidates, as well as to expanding our infrastructure. We have not generated any revenue from product sales to date. It could be several years, if ever, before we have a commercialized drug. The net losses we incur may fluctuate significantly from quarter to quarter and year to year. We expect to continue to incur significant expenses and increasing operating losses for at least the next few years as we conduct additional clinical trials for our product candidates; continue to discover and develop additional product candidates; acquire or in-license other product candidates and technologies; maintain, expand and protect our intellectual property portfolio; hire additional clinical, scientific and commercial personnel; establish a commercial manufacturing source and secure supply chain capacity sufficient to provide commercial quantities of any product candidates for which we may obtain regulatory approval; seek regulatory approvals for any product candidates that successfully complete clinical trials; establish a sales, marketing and distribution infrastructure to commercialize any products for which we may obtain regulatory approval; and add operational, financial and management information systems and personnel, including personnel to support our product development and planned future commercialization efforts. We may encounter unforeseen expenses, difficulties, complications, delays and other unknown factors that may adversely affect our business. For example, we have already experienced delays in clinical trial site activation and slower patient enrollment in some of our clinical trials as a result of the pandemic, which we expect will delay our ability to report data from those trials, and we may encounter additional delays, disruptions and other direct and indirect negative effects of the COVID-19 pandemic on our clinical trials. The size of our future net losses will depend, in part, on the rate of future growth of our expenses and our ability to generate revenues. Even if we achieve profitability in the future, we may not be able to sustain profitability in subsequent periods. The net losses we incur may fluctuate significantly from quarter to quarter and year to year.

Our ability to generate profits from operations and thereafter to remain profitable depends heavily on:
the scope, number, progress, duration, endpoints, cost, results and timing of clinical trials and nonclinical studies of our current or potential future product candidates, including in particular the scope, progress, duration, endpoints, cost, results and timing for completion of our Phase 3 trial of mavorixafor for the treatment of WHIM syndrome, our Phase 1b clinical trial of mavorixafor for the treatment of severe congenital neutropenia, or SCN, and our Phase 1b clinical trial of mavorixafor for the treatment of Waldenström’s macroglobulinemia.
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our ability to raise sufficient funds to support the development and potential commercialization of our product candidates;
the outcomes and timing of regulatory reviews, approvals or other actions;
our ability to obtain marketing approval for our product candidates;
our ability to establish and maintain licensing, collaboration or similar arrangements on favorable terms and whether and to what extent we retain development or commercialization responsibilities under any new licensing, collaboration or similar arrangement;
the success of any other business, product or technology that we acquire or in which we invest;
our ability to maintain, expand and defend the scope of our intellectual property portfolio;
our ability to manufacture any approved products on commercially reasonable terms;
our ability to establish a sales and marketing organization or suitable third-party alternatives for any approved product; and
the number and characteristics of product candidates and programs that we pursue.
Based on our current plans, we do not expect to generate significant revenue from product sales unless and until we (or a potential future licensee or collaborator) obtain marketing approval for, and commercialize, one or more of our current or potential future product candidates. Neither we nor a licensee may ever succeed in obtaining marketing approval for, or commercializing, our product candidates and, even if we do, we may never generate revenues that are significant enough to generate profits from operations. Even if we do generate profits from operations, we may not be able to sustain or increase profitability on a quarterly or annual basis. Our failure to generate profits from operations and remain profitable would decrease our value and could impair our ability to raise capital, expand our business, maintain our research and development efforts, diversify our product offerings or continue our operations. A decline in our value could also cause you to lose all or part of your investment.

We may encounter unforeseen expenses, difficulties, complications, delays and other known and unknown factors that may alter or delay our plans. Assuming that we complete the development of and obtain marketing approval for any of our product candidates, we will need to transition from a company with a research and development focus to a company capable of supporting commercial activities. We may encounter unforeseen expenses, difficulties, complications and delays, and may not be successful in such a transition.

We will require substantial additional funding. If we are unable to raise capital when needed, we could be forced to delay, reduce or eliminate any product development programs or commercialization efforts.

Our operations have consumed a large amount of cash since inception. We expect our research and development expenses to increase in future periods as we continue to advance the clinical development of our product candidates and prepare for the launch and commercialization of any product candidates for which we receive regulatory approval, including potentially building our own commercial organization to address the United States and certain other markets. In addition, if we obtain marketing approval for any of our product candidates that are not then subject to licensing, collaboration or similar arrangements with third parties, we expect to incur significant commercialization expenses related to product sales, marketing, distribution and manufacturing. Furthermore, we expect to incur additional costs associated with operating as a public company.

As of March 31, 2020, our cash and cash equivalents was $115.1 million, which we believe will fund our current operating plans through at least the next 12 months from the date the financial statements were issued. However, our operating plan may change as a result of many factors currently unknown to us, and we may need to seek additional funds sooner than planned, through public or private equity or debt financings, third-party funding, marketing and distribution arrangements, as well as other collaborations, strategic alliances and licensing arrangements, or any combination of these approaches.
We will require substantial additional funding to carry out our business plans, including the clinical development of mavorixafor. Further, even if we believe we have sufficient capital for our current or future operating plans, we may seek additional capital if market conditions are favorable or if we have specific strategic considerations. We cannot be certain that additional funding will be available on acceptable terms, or at all. The ongoing COVID-19 pandemic has already resulted in a significant disruption of global financial markets. If the disruption persists and deepens, we could experience an inability to access additional capital when and if needed. If we are unable to raise additional capital when needed or in sufficient amounts or on terms acceptable to us, we could be forced to delay, reduce or eliminate our research and development programs or any future commercialization efforts of one or more of our product candidates or one or more of our other research and development initiatives.
We also could be required to:
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seek collaborators for one or more of our current or future product candidates at an earlier stage than otherwise would be desirable or on terms that are less favorable than might otherwise be available; or
relinquish or license on unfavorable terms our rights to technologies or product candidates that we otherwise would seek to develop or commercialize ourselves.
Our future funding requirements, both near and long-term, will depend on many factors, including, but not limited to:
the scope, number, initiation, progress, timing, costs, design, duration, any potential delays, and results of clinical trials and nonclinical studies for our current or future product candidates, particularly our Phase 3 trial of mavorixafor for the treatment of WHIM syndrome, our Phase 1b clinical trial of mavorixafor for the treatment of SCN, and our Phase 1b clinical trial of mavorixafor for the treatment of WM;
the clinical development plans that we establish for these product candidates;
the number and characteristics of product candidates and programs that we develop or may in-license;
the outcome, timing and cost of regulatory reviews, approvals or other actions to meet regulatory requirements established by the U.S. Food and Drug Administration, or FDA, and comparable foreign regulatory authorities, including the potential for the FDA or comparable foreign regulatory authorities to require that we perform more studies for our product candidates than those that we currently expect;
our ability to obtain marketing approval for our product candidates;
the cost of filing, prosecuting, defending and enforcing our patent claims and other intellectual property rights covering our product candidates, including any such patent claims and intellectual property rights that we have licensed from Genzyme pursuant to the terms of our license agreement with Genzyme or from other third parties;
our ability to maintain, expand and defend the scope of our intellectual property portfolio, including the cost of defending intellectual property disputes, including patent infringement actions brought by third parties against us or our product candidates;
the cost and timing of completion of commercial-scale outsourced manufacturing activities with respect to our product candidates;
our ability to establish and maintain licensing, collaboration or similar arrangements on favorable terms and whether and to what extent we retain development or commercialization responsibilities under any new licensing, collaboration or similar arrangement;
the cost of establishing sales, marketing and distribution capabilities for any product candidates for which we may receive regulatory approval in regions where we choose to commercialize our products on our own;
the success of any other business, product or technology that we acquire or in which we invest;
the costs of acquiring, licensing or investing in businesses, product candidates and technologies;
our need and ability to hire additional management and scientific and medical personnel;
the costs to operate as a public company, including the need to implement additional financial and reporting systems and other internal systems and infrastructure for our business;
market acceptance of our product candidates, to the extent any are approved for commercial sale;
the effect of competing technological and market developments; and
business interruptions resulting from pandemics and public health emergencies, including those related to the ongoing COVID-19 pandemic, geopolitical actions, including war and terrorism or natural disasters including earthquakes, typhoons, floods and fires.

If we do not raise additional capital in sufficient amounts, or on terms acceptable to us, we may be prevented from pursuing discovery, development and commercialization efforts, which will harm our business, operating results and prospects.

Raising additional capital may cause dilution to our investors, restrict our operations or require us to relinquish rights to our technologies or product candidates. Future debt obligations may expose us to risks that could adversely affect our business, operating results and financial condition and may result in further dilution to our stockholders.

Until such time, if ever, as we can generate substantial product revenues, we expect to finance our cash needs through public or private equity or debt financings, third-party funding, marketing and distribution arrangements, as well as other collaborations, strategic alliances and licensing arrangements, or any combination of these approaches. The COVID-19 pandemic has already resulted in a significant disruption of global financial markets. If the disruption persists and deepens, we could experience an inability to access additional capital. We do not have any committed external sources of funds and may seek to raise additional capital at any time. To the extent that we raise additional capital through the sale of equity or convertible debt securities, your
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ownership interest will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect your rights as a holder of our common stock. Debt financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures, declaring dividends or other distributions, acquiring or licensing intellectual property rights and other operating restrictions that could adversely impact our ability to conduct our business and may result in liens being placed on our assets and intellectual property. If we default on such indebtedness, we could lose such assets and intellectual property.

If we raise additional funds through licensing, collaboration or similar arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research and development programs or product candidates or grant licenses on terms that are not favorable to us.

If we are unable to raise additional funds through equity or debt financings or through licensing, collaboration or similar arrangements when needed, we may be required to delay, limit, reduce or terminate our product development or future commercialization efforts or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves.

We have not generated any revenues from product sales since inception and may never become profitable.
To date, we have not generated any revenues from any product sales. Our ability to generate revenue and become profitable depends upon our ability to successfully obtain marketing approval and commercialize our product candidates, including mavorixafor, X4P-002, X4P-003 or other product candidates that we may develop, in-license or acquire in the future. Even if we are able to successfully achieve regulatory approval for these product candidates, we are unable to predict the extent of any future losses and do not know when any of these product candidates will generate revenue for us, if at all. Our ability to generate revenue from mavorixafor or any of our current or future product candidates also depends on a number of additional factors, including our ability to:
successfully complete development activities, including all necessary nonclinical studies and clinical trials;
complete and submit New Drug Applications, or NDAs, to the FDA and obtain regulatory approval for indications for which there is a commercial market;
complete and submit marketing applications to, and obtain regulatory approval from, foreign regulatory authorities;
set and obtain a commercially viable price for our products;
obtain commercial quantities of our products at acceptable cost levels;
develop a commercial organization capable of sales, marketing and distribution for the products we intend to sell ourselves in the markets in which we have retained commercialization rights;
find suitable collaborators to help us market, sell and distribute our approved products in other markets; and
obtain coverage and adequate reimbursement from third-party, including government, payors.
In addition, because of the numerous risks and uncertainties associated with product development, including the possibility that our product candidates may not advance through development or demonstrate safety and efficacy for their intended uses, the FDA or any other regulatory agency may require additional clinical trials or nonclinical studies. We are unable to predict the timing or amount of increased expenses, or when or if we will be able to achieve or maintain profitability, and such expense could increase beyond our expectations if the FDA or any other regulatory agency requires such additional clinical trials or nonclinical studies as part of the application and approval process or post-approval process if we are successful at achieving regulatory approval. Even if we are able to successfully complete the development and regulatory reviews described above, we anticipate incurring significant costs associated with commercializing these products, if they are approved.

Even if we are able to generate revenues from the sale of our product candidates, we may not become profitable and may need to obtain additional funding to continue operations. If we fail to become profitable or are unable to sustain profitability on a continuing basis, then we may be unable to continue our operations at planned levels and be forced to reduce our operations. If we do achieve profitability, we may not be able to sustain or increase profitability on a quarterly or annual basis. Our failure to become and remain profitable would decrease the value of the company and could impair our ability to raise capital, maintain our discovery and preclinical development efforts, expand our business or continue our operations and may require us to raise additional capital that may dilute your ownership interest. A decline in our value could also cause you to lose all or part of your investment.

Risks Related to Development of Our Product Candidates

We depend almost entirely on the success of our lead product candidate, mavorixafor, which we are developing initially for the treatment of WHIM syndrome, for the treatment of SCN, for the treatment of WM and, with a potential strategic partner, for the treatment of ccRCC. We cannot be certain that we will be able to obtain regulatory approval for, or successfully commercialize, mavorixafor or any other product candidate.
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Our business depends almost entirely on the successful clinical development, regulatory approval and commercialization of mavorixafor. We currently have no products for sale and may never be able to develop marketable drug products. We initiated a global Phase 3 pivotal clinical trial of our lead product candidate, mavorixafor, in WHIM patients in the second quarter of 2019, and may be required to complete additional nonclinical studies and clinical trials before we can seek regulatory approval. In the fourth quarter of 2019, we also initiated Phase 1b clinical trials of mavorixafor for the treatment of SCN and WM. While we completed a Phase 2a clinical trial of mavorixafor for the treatment of ccRCC, we do not plan to develop mavorixafor for this indication on our own. Our other programs, including X4P-002 and X4P-003, are still in the preclinical development stage. The clinical trials of our product candidates are, and the manufacturing and marketing of our product candidates will be, subject to extensive and rigorous review and regulation by government authorities in the United States and in other countries where we intend to test and, if approved, market any product candidate. Before obtaining regulatory approvals for the commercial sale of any product candidate, we must successfully meet a number of critical developmental milestones, including:
developing dosages that will be well-tolerated, safe and effective;
completing the development and scale-up to permit manufacture of our product candidates in commercial quantities and at acceptable costs;
demonstrating through pivotal clinical trials that each product candidate is safe and effective in patients for the intended indication;
establishing commercial manufacturing capabilities or making arrangements with third-party manufacturers; and
obtaining and maintaining patent and trade secret protection and non-patent exclusivity for our product candidates.

The time necessary to achieve these developmental milestones for any individual product candidate is long and uncertain, and we may not successfully complete these milestones for mavorixafor or any other product candidates that we may develop. We have not yet completed development of any product candidate. We also may not be able to finalize the design or formulation for our other programs, X4P-002 for the treatment of glioblastoma multiforme, or GBM, and X4P-003, a next generation molecule for the treatment of rare diseases linked to defects in CXCR4 trafficking.

We are continuing to test and develop our product candidates and may explore possible design or formulation changes to address safety, efficacy, manufacturing efficiency and performance issues to the extent any arise. We may not be able to complete development of any product candidates that demonstrate safety and efficacy and that will have a commercially reasonable treatment and storage period. If we are unable to complete development of mavorixafor or any other product candidates that we may develop, we will not be able to commercialize and earn revenue from them.

We expect to develop mavorixafor, and potentially future product candidates, in combination with other therapies, which exposes us to additional risks.

We intend to develop mavorixafor, and may develop future product candidates, in combination with one or more currently approved cancer therapies. Even if any product candidate we develop were to receive marketing approval or be commercialized for use in combination with other existing therapies, we would continue to be subject to the risks that the FDA or similar regulatory authorities outside of the United States could revoke approval of the therapy used in combination with our product candidate or that safety, efficacy, manufacturing or supply issues could arise with these existing therapies. Combination therapies are commonly used for the treatment of cancer, and we would be subject to similar risks if we develop any of our product candidates for use in combination with other drugs or for indications other than cancer. This could result in our own products being removed from the market or being less successful commercially.

We may also evaluate mavorixafor or any other future product candidates in combination with one or more other cancer therapies that have not yet been approved for marketing by the FDA or similar regulatory authorities outside of the United States. We will not be able to market and sell mavorixafor or any product candidate we develop in combination with any such unapproved cancer therapies that do not ultimately obtain marketing approval.

If the FDA or similar regulatory authorities outside of the United States do not approve these other drugs or revoke their approval of, or if safety, efficacy, manufacturing or supply issues arise with, the drugs that we choose to evaluate in combination with mavorixafor or any product candidate we develop, we may be unable to obtain approval of or market mavorixafor or any product candidate we develop.

The regulatory review and approval processes of the FDA and comparable foreign regulatory authorities are lengthy, time-consuming and inherently unpredictable, and if we are ultimately unable to obtain regulatory approval for our product candidates, including mavorixafor, our business will be substantially harmed.

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Of the large number of drugs in development in the United States, only a small percentage receive FDA regulatory approval and are commercialized in the United States. We are not permitted to market mavorixafor or any other product candidate in the United States until we receive approval of an NDA from the FDA, or in any foreign countries until we receive the requisite approval from such countries or jurisdictions, such as the marketing authorization application, or MAA, in the European Union from the European Medicines Agency, or EMA. Prior to submitting an NDA to the FDA for approval of mavorixafor for the treatment of WHIM syndrome, we will need to successfully complete our current Phase 3 pivotal clinical trial of mavorixafor in patients with WHIM syndrome and potentially, we will be required by the FDA to conduct additional clinical trials and/or nonclinical studies to support potential approval. Successfully completing clinical trials and obtaining approval of an NDA is a complex, lengthy, expensive and uncertain process, and the FDA, or a comparable foreign regulatory authority, may delay, limit or deny approval of mavorixafor for the treatment of WHIM syndrome or other indications for many reasons, including, among others:
disagreement with the design or implementation of our clinical trials;
disagreement with the sufficiency of our clinical trials;
failure to demonstrate the safety and efficacy of mavorixafor or any other product candidate for its proposed indications;
failure to demonstrate that any clinical and other benefits of mavorixafor or any other product candidate outweigh its safety risks;
a negative interpretation of the data from our nonclinical studies or clinical trials;
deficiencies in the manufacturing or control processes or failure of third-party manufacturing facilities with which we contract for clinical and commercial supplies to comply with current Good Manufacturing Practice requirements, or cGMPs;
insufficient data collected from clinical trials of mavorixafor or changes in the approval requirements that render its nonclinical and clinical data insufficient to support the filing of an NDA or to obtain regulatory approval; or
changes in clinical practice in or approved products available for the treatment of the target patient population that could have an impact on the indications that we are pursuing for mavorixafor or our other product candidates.

The FDA or a comparable foreign regulatory authority may also require more information, including additional nonclinical or clinical data to support approval, which may delay or prevent approval of our commercialization plans, or cause us to abandon the development program. Even if we obtain regulatory approval, our product candidates may be approved for fewer or more limited indications than we request, such approval may be contingent on the performance of costly post-marketing clinical trials, or we may not be allowed to include the labeling claims necessary or desirable for the successful commercialization of such product candidate. For instance, it is possible that mavorixafor could be approved for an indication but fail to be used for treating patients in that indication due to the availability of other available treatments or then-accepted clinical practice.

We depend on license agreements with Genzyme, Beth Israel Deaconess Medical Center and Georgetown University to permit us to use patents and patent applications. Termination of these rights or the failure to comply with obligations under these agreements could materially harm our business and prevent us from developing or commercializing our product candidates.

We are party to license agreements with Genzyme, Beth Israel Deaconess Medical Center and Georgetown University under which we were granted rights to patents and patent applications that are important to our business. We rely on these license agreements in order to be able to use various proprietary technologies that are material to our business, including certain patents and patent applications that cover our product candidates, including mavorixafor. Our rights to use these patents and patent applications and employ the inventions claimed in these licensed patents are subject to the continuation of and our compliance with the terms of our license agreements.

Our license agreement with Genzyme imposes upon us various diligence, payment and other obligations, including the following:
our obligation to pay Genzyme milestone payments in the aggregate amount of up to $25.0 million, contingent upon our achievement of certain late-stage regulatory and sales milestones with respect to licensed products.
our obligation to pay Genzyme tiered royalties based on net sales of licensed products that we commercialize under the agreement.
our obligation to pay Genzyme a certain percentage of cash payments received by us or our affiliates in consideration for the grant of a sublicense under the license granted to us by Genzyme.

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If we fail to comply with any of our obligations under the Genzyme license agreement, or we are subject to a bankruptcy, Genzyme may have the right to terminate the license agreement, in which event we would not be able to market any product candidates covered by the license.

Prior to July 2014, we did not control the prosecution, maintenance, or filing of the patents and patent applications that are licensed to us under the Genzyme license agreement, or the enforcement of these patents and patent applications against infringement by third parties. Thus, these patents and patent applications were not drafted by us or our attorneys, and we did not control or have any input into the prosecution of these patents and patent applications prior to our execution of the Genzyme license agreement in July 2014. Under the terms of the license agreement with Genzyme, since July 2014, we have controlled the right to control the prosecution, maintenance, and filing of the patents and patent applications that are licensed to us, and the enforcement of these patents and patent applications against infringement by third parties. However, we cannot be certain that the same level of attention was given to the drafting and prosecution of these patents and patent applications as we may have used if we had control over the drafting and prosecution of such patents and patent applications. We also cannot be certain that drafting or prosecution of the patents and patent applications licensed to us has been conducted in compliance with applicable laws and regulations or will result in valid and enforceable patents.

Pursuant to our license agreement with Beth Israel Deaconess Medical Center, we paid an upfront, one-time fee for the rights granted by the license agreement. This license agreement imposes upon us various obligations, including the requirement to provide Beth Israel Deaconess Medical Center with progress reports at regular intervals and to maintain specified levels of insurance. Beth Israel Deaconess Medical Center may terminate the agreement for our non-payment, insolvency or default of material obligations. We have the right to terminate the agreement for any reason upon 90 days’ advance written notice.
Our license agreement with Georgetown imposes upon us various diligence, payment and other obligations, including our obligations to pay Georgetown milestone payments in the aggregate amount of up to $0.8 million, contingent upon our achievement of certain sales milestones with respect to licensed products, to deliver reports upon certain events and at regular intervals and to maintain customary levels of insurance. Georgetown may terminate the agreement for our non-payment, insolvency, failure to maintain insurance or default of material obligations. We have the right to terminate the agreement for any reason upon 60 days advance written notice.

Disputes may arise under any of our license agreements with Genzyme, Beth Israel Deaconess Medical Center and/or Georgetown University regarding the intellectual property that is subject to such license agreement, including:
the scope of rights granted under the applicable license agreement and other interpretation-related issues;
whether and the extent to which our technology and processes infringe on intellectual property that is not subject to the applicable license agreement;
our diligence obligations with respect to the use of the licensed technology under the applicable license agreement to develop and commercialize products and technologies, including the level of effort and specific activities that will satisfy those diligence obligations; and
the ownership of inventions and know-how resulting from the joint creation or use of intellectual property by us and our collaborators.

If disputes over intellectual property that we have licensed prevent or impair our ability to maintain any of our license agreements on acceptable terms, we may be unable to successfully develop and commercialize the affected product candidates and technologies.

Furthermore, certain of the above risks and uncertainties may be amplified as a result of the impact of COVID-19. The extent to which COVID-19 may impact our license agreements with Genzyme, Beth Israel Deaconess Medical Center and/or Georgetown University, or any other third-party partner, will depend on future developments, which are highly uncertain and cannot be predicted, including new information which may emerge concerning the severity of COVID-19 and the actions to contain COVID-19 or treat its impact, among others.

The results of clinical trials may not support our product candidate claims.

Even if our clinical trials are completed as planned, we cannot be certain that their results will support the proposed product candidates, that the FDA or foreign government authorities will agree with our conclusions regarding such results, or that the FDA or foreign governmental authorities will not require additional clinical trials. Success in preclinical testing and early clinical trials does not ensure that later clinical trials will be successful and the results of later clinical trials often do not replicate the results of prior clinical trials and preclinical testing. The clinical trial results may fail to demonstrate that our product candidates are safe for humans and effective for the intended indications. This failure could cause us to abandon a product candidate and may delay development of other product candidates. Any delay in, or termination of, our clinical trials
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will delay or prevent the submission of our marketing applications (NDA and/or MAA) and, ultimately, our ability to obtain approval and commercialize our product candidates and generate product revenues. Information about certain clinical trials, including results (positive or negative) will be made public according to each country’s clinical trial register policies. Competitors may use this publicly available information to gain knowledge regarding the progress of development programs.

Delays in our clinical trials may lead to a delay in the submission of our marketing approval application and jeopardize our ability to potentially receive approvals and generate revenues from the sale of our products.

We may experience delays in our current or future clinical trials, including our Phase 3 trial of mavorixafor for the treatment of WHIM syndrome, our Phase 1b clinical trial of mavorixafor for the treatment of SCN, and our Phase 1b clinical trial of mavorixafor for the treatment of WM. As a result of the ongoing COVID-19 pandemic, we have already experienced delays in clinical trial site activation and slower patient enrollment in our clinical trials of mavorixafor for the treatment of WHIM syndrome and SCN. We do not know whether planned clinical trials will begin or enroll subjects on time, need to be redesigned or be completed on schedule, if at all. Clinical trials may be delayed, suspended or terminated for a variety of reasons, including the following:

direct and indirect effects of the ongoing COVID-19 pandemic on various aspects and stages of the clinical development process, including the potential impact to expected site activation, enrollment and participation in our clinical trials;
the diversion of healthcare resources away from the conduct of clinical trials as a result of the ongoing COVID-19 pandemic, including the diversion of hospitals serving as our clinical trial sites and hospital staff supporting the conduct of our clinical trials;
the interruption of key clinical trial activities, such as clinical trial site monitoring, due to limitations on travel, quarantines or social distancing protocols imposed or recommended by federal or state governments, employers and others in connection with the ongoing COVID-19 pandemic;
delay or failure in reaching agreement with the FDA or a comparable foreign regulatory authority on a trial design that we are able to execute;
delay or failure in obtaining authorization to commence a trial or inability to comply with conditions imposed by a regulatory authority regarding the scope or design of a clinical trial;
inability, delay or failure in identifying and maintaining a sufficient number of trial sites, many of which may already be engaged in competing clinical trial programs;
delay or failure in recruiting and enrolling suitable subjects to participate in a trial;
delay or failure in having subjects complete a trial or return for post-treatment follow-up;
clinical sites and investigators deviating from trial protocol, failing to conduct the trial in accordance with regulatory requirements, or dropping out of a trial;
delay or failure in reaching agreement on acceptable terms with prospective clinical research organizations, or CROs, and clinical trial sites, the terms of which can be subject to extensive negotiation and may vary significantly among different CROs and trial sites;
delay or failure in obtaining institutional review board, or IRB, approval to conduct a clinical trial at each site;
delays resulting from negative or equivocal findings of the Data Safety Monitoring Board, or DSMB, if any;
ambiguous or negative results;
decision by the FDA, a comparable foreign regulatory authority, or recommendation by a DSMB to suspend or terminate clinical trials at any time for safety issues or for any other reason;
inadequate drug product for use in nonclinical studies or clinical trials;
lack of adequate funding to continue the product development program; or
changes in governmental regulations or requirements.

Any delays in completing our clinical trials will increase our costs, slow down our product candidate development and approval process and jeopardize our ability to commence product sales and generate revenues. Any of these occurrences may significantly harm our business, financial condition and prospects. In addition, many of the factors that cause, or lead to, a delay in the commencement or completion of clinical trials may also ultimately lead to the denial of regulatory approval of our product candidates.

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We may fail to enroll a sufficient number of patients in our clinical trials in a timely manner, which could delay or prevent clinical trials of our product candidates.

Identifying and qualifying patients to participate in clinical trials of our product candidates is critical to our success. The timing of our clinical trials depends on the rate at which we can recruit and enroll patients in testing our product candidates, and we have made certain assumptions about the rate at which we can enroll patients in our clinical trials. The timing of our clinical trials depends in part on the speed at which we can recruit patients to participate in testing mavorixafor and any other current or future product candidates that we may develop as well as completion of required follow-up periods. For example, as a result of the ongoing COVID-19 pandemic, we have experienced, and expect to continue to experience, enrollment at a slower pace at certain of our clinical trial sites than initially expected. In addition, certain of our clinical trial sites have suspended enrollment due to facility closures, quarantine, travel restrictions and other governmental restrictions. As a result, we expect the results from our clinical trials of mavorixafor for the treatment of WHIM syndrome and SCN to be delayed, which we expect will have a material adverse impact on our clinical trial plans and timelines.

If we cannot identify patients to participate in our clinical trials, whether due to COVID-19 or otherwise, or if patients are unwilling to participate in our clinical trials for any reason, including if patients choose to enroll in competitive clinical trials for similar patient populations, the timeline for recruiting patients, conducting studies and obtaining regulatory approval of mavorixafor and any other current or future product candidates that we may develop may be delayed. These delays could result in increased costs, delays in advancing our current or future product candidates, including mavorixafor, X4P-002 or X4P-003, delays in testing the effectiveness of our product candidates or termination of the clinical trials altogether.

We may not be able to identify, recruit and enroll a sufficient number of patients, or those with required or desired characteristics to achieve diversity in a trial, to complete our clinical trials in a timely manner. In particular, we are currently evaluating mavorixafor for the treatment of WHIM syndrome, SCN and WM, rare diseases with limited patient pools from which to draw for clinical trials. The eligibility criteria of our clinical trials will further limit the pool of available trial participants.

Patient enrollment, a significant factor in the duration of clinical trials, is also affected by many factors, including:
delays or difficulties in clinical site activation, including difficulties in training clinical site investigators and clinical site staff;
diversion or prioritization of healthcare resources away from the conduct of our clinical trials as a result of the ongoing COVID-19 pandemic, including the diversion of hospitals serving as our clinical trial sites and hospital staff supporting the conduct of our clinical trials, particularly for clinical trials that require in-patient monitoring following administration of the product candidate;
increased rates of patients withdrawing from our clinical trials following enrollment as a result of contracting COVID-19, being forced to quarantine, or being unable to visit clinical trial locations;
the severity of the disease under investigation;
the size and nature of the patient population (particularly with respect to orphan drugs which, by definition, are intended for a relatively small patient population);
the eligibility criteria for the clinical trial in question;
the design of the clinical trial;
the inability to obtain and maintain patient consents;
the risk that enrolled subjects will drop out before completion;
clinicians’ and patients’ perceptions as to the potential advantages of the drug being studied in relation to other available therapies, including any new drug that may be approved or for which clinical trials are initiated for the indications that we are investigating;
our CROs and our trial sites’ efforts to facilitate timely screening and enrollment in clinical trialsandwhile we will have agreements governing their activities, we have limited control over their actual performance;
patient referral practices of physicians; and
our ability to monitor patients adequately during and after treatment, which may be affected by COVID-19.

If we experience difficulty enrolling a sufficient number of patients to conduct our clinical trials as planned, we may be forced to delay, limit or terminate ongoing or planned clinical trials of our product candidates, which would delay our ability to obtain approvals and generate product revenues from any of these product candidates.

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If the commercial opportunity in WHIM syndrome, SCN or WM is smaller than we anticipate, our potential future revenue from mavorixafor for the treatment of any of the diseases may be adversely affected and our business may suffer.

If the size of the commercial opportunities in any of our target indications is smaller than we anticipate, we may not be able to achieve profitability and growth. We are developing mavorixafor initially as a treatment for patients with WHIM syndrome and also as a treatment for other rare diseases, including primary immunodeficiencies such as SCN and cancer such as WM. WHIM syndrome, SCN and WM each have a limited patient population.

For example, we are aware of only a few small available patient registries for WHIM syndrome, and we rely on various estimates and assumptions to estimate the addressable WHIM syndrome population. Based on a broad online survey of physicians to validate current prevalence estimates and additional research using artificial intelligence, which interrogated a database of more than 300 million anonymized patient records that spanned 10 years of insurance claims, we have updated our estimates and we now estimate there are between 1,800 and 3,700 WHIM patients in the United States, many of which were previously undiagnosed. If the commercial opportunity in WHIM syndrome is smaller than we anticipate, whether because our estimates of the addressable patient population prove to be incorrect or for other reasons, our potential future revenue from mavorixafor may be adversely affected and our business may suffer.

It is critical to our ability to grow and become profitable that we successfully identify patients with WHIM syndrome, SCN and WM. Our projections of the number of people who have WHIM syndrome (or its other potential primary immunodeficiencies), SCN or WM are based on a variety of sources, including third-party estimates and analyses in the scientific literature, and may prove to be incorrect. Further, new information may emerge that changes our estimate of the prevalence of these diseases or the number of patient candidates for each disease. The effort to identify patients for treatment is at an early stage, and we cannot accurately predict the number of patients for whom treatment might be possible. Additionally, the addressable patient population for our indications may be limited or may not be amenable to treatment with mavorixafor, and new patients may become increasingly difficult to identify or gain access to, which would adversely affect our results of operations and our business.

If we experience any of a number of possible unforeseen events in connection with our clinical trials, potential marketing approval or commercialization of our product candidates, or our entry into licensing, collaboration or similar arrangements, could be delayed or prevented.

We may experience numerous unforeseen events during, or as a result of, clinical trials that could delay or prevent our ability to receive marketing approval or commercialize our product candidates, including:
diversion or prioritization of healthcare resources away from the conduct of clinical trials as a result of the ongoing COVID-19 pandemic, including the diversion of hospitals serving as our clinical trial sites and hospital staff supporting the conduct of our clinical trials;
the interruption of key clinical trial activities, such as clinical trial site monitoring, due to limitations on travel, quarantines or social distancing protocols imposed or recommended by federal or state governments, employers and others in connection with the ongoing COVID-19 pandemic;
clinical trials of our product candidates may produce negative or inconclusive results, and we may decide, or regulators may require us, to conduct additional clinical trials or abandon product development programs;
the number of patients required for clinical trials of our product candidates may be larger than we anticipate, enrollment in these clinical trials may be slower than we anticipate or participants may drop out of these clinical trials at a higher rate than we anticipate;
we may be unable to recruit and enroll a sufficient number of patients in our clinical trials to ensure adequate statistical power to detect any statistically significant treatment effects;
our third-party contractors may fail to comply with regulatory requirements or meet their contractual obligations to us in a timely manner, or at all;
regulators, institutional review boards or independent ethics committees may not authorize us or our investigators to commence a clinical trial or conduct a clinical trial at a prospective trial site;
we may experience delays in reaching, or we may fail to reach, agreement on acceptable clinical trial contracts or clinical trial protocols with prospective trial sites;
we may have to suspend or terminate clinical trials of our product candidates for various reasons, including a finding that the participants are being exposed to unacceptable health risks or undesirable side effects;
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regulators, institutional review boards or independent ethics committees may require that we or our investigators suspend or terminate clinical research for various reasons, including noncompliance with regulatory requirements or a finding that the participants are being exposed to unacceptable health risks;
the cost of clinical trials of our product candidates may be greater than we anticipate;
the supply or quality of our product candidates or other materials necessary to conduct clinical trials of our product candidates may be insufficient or inadequate; and
our product candidates may have undesirable side effects or other unexpected characteristics, causing us or our investigators, regulators, institutional review boards or independent ethics committees to suspend or terminate the clinical trials.
Our product development costs will increase if we experience delays in testing or marketing approvals. We do not know whether any preclinical tests or clinical trials will begin as planned, will need to be redesigned or will be completed on schedule, or at all. We have already experienced delays in clinical trial site activation and slower patient enrollment in our Phase 3 clinical trial of mavorixafor in patients with WHIM syndrome and our Phase 1b clinical trial of mavorixafor in patients with SCN as a result of the ongoing COVID-19 pandemic. Significant preclinical study or clinical trial delays, including as a result of COVID-19, also could shorten any periods during which we may have the exclusive right to commercialize our product candidates, if they are approved, or allow our competitors to bring products to market before we do and impair our ability to successfully commercialize our product candidates, which may harm our business and results of operations.

We may expend our limited resources to pursue a particular product candidate or indication and fail to capitalize on product candidates or indications that may be more profitable or for which there is a greater likelihood of success.

Because we have limited financial and managerial resources, we focus on specific product candidates. Currently, we are focusing our resources predominantly on the development mavorixafor for the treatment of WHIM syndrome, for the treatment of SCN and for the treatment of WM. As a result, we may forego or delay pursuit of opportunities with other product candidates or for other indications that have or that could later prove to have greater commercial potential. Our resource allocation decisions may cause us to fail to capitalize on viable commercial products or alternate and/or profitable market opportunities. Our spending on current and future research and development programs and product candidates for specific indications may not yield any commercially viable products. If we do not accurately evaluate the commercial potential or target market for a particular product candidate, we may relinquish valuable rights to that product candidate through collaboration, licensing or other royalty arrangements in cases in which it would have been more advantageous for us to retain sole development and commercialization rights to such product candidate.

Interim top-line and preliminary data from our clinical trials that we announce or publish from time to time may change as more patient data become available and are subject to audit and verification procedures that could result in material changes in the final data.

From time to time, we may publish interim top-line or preliminary data from our clinical trials. Interim data from clinical trials that we may complete are subject to the risk that one or more of the clinical outcomes may materially change as patient enrollment continues and more patient data become available. Preliminary or top-line data also remain subject to audit and verification procedures that may result in the final data being materially different from the preliminary data we previously published. Preliminary or top-line data may include, for example, data regarding a small percentage of the patients enrolled in a clinical trial, and such preliminary data should not be viewed as an indication, belief or guarantee that other patients enrolled in such clinical trial will achieve similar results or that the preliminary results from such patients will be maintained. As a result, interim and preliminary data should be viewed with caution until the final data are available. Differences between preliminary or interim data and final data could significantly harm our business prospects and may cause the trading price of our common stock to fluctuate significantly.

Risks Related to the Marketing and Commercialization of Our Product Candidates

A breakthrough therapy designation by the FDA for our product candidates may not lead to a faster development or regulatory review or approval process, and it does not increase the likelihood that our product candidates will receive marketing approval.

We have obtained breakthrough therapy designation for mavorixafor for the treatment of adult patients with WHIM and we may pursue that designation for other product candidates as well. A breakthrough therapy is defined as a product that is intended, alone or in combination with one or more other drugs, to treat a serious or life- threatening condition, and preliminary clinical evidence indicates that the product may demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints. For product candidates that have been designated as breakthrough therapies, interaction and
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communication between the FDA and the sponsor of the trial can help identify the most efficient path for clinical development while minimizing the number of patients placed in ineffective control regimens. Such designation also offers an intensive and efficient review involving FDA senior managers and experienced review and regulatory health project management staff across disciplines. A breakthrough therapy designation affords the possibility of rolling review, enabling the FDA to review portions of our marketing application before submission of a complete application, and possibly, priority review.

Designation as a breakthrough therapy is within the discretion of the FDA. Accordingly, even if we believe that our product candidates meet the criteria for designation as a breakthrough therapy, the FDA may disagree and instead determine not to make such designation. In any event, the receipt of a breakthrough therapy designation for a product candidate may not result in a faster development process, review or approval compared to products considered for approval under conventional FDA procedures and does not assure ultimate approval by the FDA. In addition, even if one or more of our product candidates qualify as breakthrough therapies, the FDA may later decide that the products no longer meet the conditions for qualification.

It is possible that we may not be able to obtain or maintain orphan drug designation or exclusivity for our drug candidates, which could limit the potential profitability of our product candidates.

Regulatory authorities in some jurisdictions, including the United States and Europe, may designate drugs for the treatment or prevention of rare diseases or conditions with relatively small patient populations as orphan drugs. Under the Orphan Drug Act of 1983, or the Orphan Drug Act, the FDA may designate a product as an orphan drug if it is a drug intended to treat a rare disease or condition, which is defined as a patient population of fewer than 200,000 individuals in the United States. We received orphan drug designation from the FDA for mavorixafor for the treatment of WHIM syndrome in October 2018, and from the EMA in July 2019. If a product with an orphan drug designation subsequently receives the first marketing approval for the indication for which it has such designation, the product is entitled to a seven-year period of marketing exclusivity, which precludes the FDA from approving another marketing application for the same drug for the same indication during that time period with some exceptions. A similar provision in the European Union allows 10 years of exclusivity in Europe. The European exclusivity period can be reduced to six years if a drug no longer meets the criteria for orphan drug designation or if the drug is sufficiently profitable so that marketing exclusivity is no longer justified. Orphan drug exclusivity may be lost in both the United States and Europe under certain situations, such as the inability of the holder of the orphan drug designation to produce sufficient quantities of the drug to meet the needs of patients with the rare disease or condition or for certain other reasons.

If we are unable to establish sales and marketing capabilities to market and sell our product candidates, we may be unable to generate any revenue.

Even if we are ultimately successful in obtaining regulatory approval of mavorixafor for the treatment of WHIM syndrome or another indication, in order to market and sell mavorixafor and our other product candidates in development, we currently intend to build and develop our own sales, marketing and distribution operations. Although our management team has previous experience with such efforts, there can be no assurance that we will be successful in building these operations. If we are unable to establish adequate sales, marketing and distribution capabilities, we may not be able to generate product revenue and may not become profitable. We will also be competing with many companies that currently have extensive and well-funded sales and marketing operations. If any of our product candidates are approved, we may be unable to compete successfully against these more established companies.

Our commercial success depends upon attaining significant market acceptance of our product candidates, if approved, among hospitals, physicians, patients and healthcare payors.

Even if we obtain regulatory approval for any of our product candidates that we may develop or acquire in the future, the product may not gain market acceptance among hospitals, physicians, health care payors, patients and the medical community. Market acceptance of any of our product candidates for which we receive approval depends on a number of factors, including:
the efficacy and safety of such product candidates as demonstrated in clinical trials;
the clinical indications for which the product candidate is approved;
acceptance by major operators of hospitals, physicians and patients of the product candidate as a safe and effective treatment, particularly the ability of mavorixafor and our other product candidates to establish themselves as a new standard of care in the treatment paradigm for the indications that we are pursuing;
the potential and perceived advantages of our product candidates over alternative treatments as compared to the relative costs of the product candidates and alternative treatments;
the prevalence and severity of any side effects with respect to our product candidates, including mavorixafor;
our ability to offer any approved products for sale at competitive prices;
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the timing of market introduction of our products as well as competitive products;
our pricing, and the availability of coverage and adequate reimbursement by third party payors and government authorities;
relative convenience and ease of administration; and
the effectiveness of our sales and marketing efforts and those of our potential future collaborators.
There may be delays in getting our product candidates, if approved, on hospital or insurance formularies or limitations on coverages that may be available in the early stages of commercialization for newly approved drugs. If any of our product candidates are approved but fail to achieve market acceptance among hospitals, physicians, patients or health care payors, we will not be able to generate significant revenues, which would have a material adverse effect on our business, prospects, financial condition and results of operations.

Product candidates may cause undesirable side effects that could delay or prevent their marketing approval, limit the commercial profile of an approved label, or result in significant negative consequences following marketing approval, if any, including marketing withdrawal.

Undesirable side effects caused by any of our product candidates that we may develop or acquire could cause us or the FDA or other regulatory authorities to interrupt, delay or halt our clinical trials and could result in more restrictive labels or the delay or denial of marketing approval by the FDA or other regulatory authorities of such product candidates. Results of our clinical trials could reveal a high and unacceptable severity and prevalence of these or other side effects. In such an event, our trials could be suspended or terminated and the FDA or comparable foreign regulatory authorities could order us to cease further development of or deny approval of our product candidates for any or all targeted indications. In addition, any drug-related side effects could affect patient recruitment or the ability of enrolled patients to complete the trial or result in potential product liability claims. Any of these occurrences may harm our business, financial condition and prospects significantly.
Further, clinical trials by their nature utilize a sample of the potential patient population. With a limited number of patients, rare and severe side effects of our product candidates may only be uncovered with a significantly larger number of patients exposed to the product candidate. If our product candidates receive marketing approval and we or others identify undesirable side effects caused by such product candidates (or any other similar drugs) after such approval, a number of potentially significant negative consequences could result, including:
regulatory authorities may withdraw or limit their approval of such product candidates;
regulatory authorities may require the addition of labeling statements, such as a “boxed” warning or a contraindication;
we may be required to create a medication guide outlining the risks of such side effects for distribution to patients;
we may be required to change the way such product candidates are distributed or administered, conduct additional clinical trials or change the labeling of the product candidates;
regulatory authorities may require a Risk Evaluation and Mitigation Strategy plan to mitigate risks, which could include medication guides, physician communication plans, or elements to assure safe use, such as restricted distribution methods, patient registries and other risk minimization tools;
we may be subject to regulatory investigations and government enforcement actions;
we may decide to remove such product candidates from the marketplace after they are approved;
we could be sued and held liable for injury caused to individuals exposed to or taking our product candidates; and
our reputation may suffer.
We believe that any of these events could prevent us from achieving or maintaining market acceptance of the affected product candidates and could substantially increase the costs of commercializing our product candidates, if approved, and significantly impact our ability to successfully commercialize our product candidates and generate revenues.

Even if our product candidates receive regulatory approval, they may still face future development and regulatory difficulties and any approved products will be subject to extensive post-approval regulatory requirements.

If we obtain regulatory approval for a product candidate, it would be subject to extensive ongoing requirements by the FDA and comparable foreign regulatory authorities governing the manufacture, quality control, further development, labeling, packaging, storage, distribution, safety surveillance, import, export, advertising, promotion, recordkeeping and reporting of safety and other post-market information. The safety profile and efficacy of any product will continue to be closely monitored by the FDA and comparable foreign regulatory authorities after approval. If the FDA or comparable foreign regulatory authorities become aware of new safety information after approval of any of our product candidates, these regulatory authorities may require labeling changes or the FDA may require establishment of a Risk Evaluation Mitigation Strategy, or REMS, or similar strategy, impose significant restrictions on a product’s indicated uses or marketing, impose ongoing requirements for potentially costly post-approval studies or post-market surveillance. Progress reports are required at quarterly intervals, every six months and at annual intervals depending upon the country, and more frequently if serious adverse events occur.
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In addition, manufacturers of drugs and their facilities are subject to continual review and periodic inspections by the FDA and other regulatory authorities for compliance with cGMP regulations. If a regulatory agency discovers previously unknown problems with a product, such as adverse events of unanticipated severity or frequency, or problems with the facility where the product is manufactured, a regulatory agency may impose restrictions on that product, the manufacturing facility or us, including requiring recall or withdrawal of the product from the market or suspension of manufacturing. If we, our product candidates or the manufacturing facilities for our product candidates fail to comply with cGMPs and other applicable regulatory requirements, the FDA may, among other things:
issue warning letters;
request modifications to promotional materials or require us to provide corrective information to healthcare practitioners;
require us to enter into a consent decree, which can include imposition of various fines, reimbursements for inspection costs, required due dates for specific actions and penalties for noncompliance;
seek an injunction or impose civil or criminal penalties or monetary fines;
suspend or withdraw regulatory approval;
suspend any ongoing clinical trials;
refuse to approve pending applications or supplements to applications filed by us;
suspend or impose restrictions on operations, including costly new manufacturing requirements; or
seize or detain products, refuse to permit the import or export of products, or require us to initiate a product recall.
The occurrence of any event or penalty described above may inhibit our ability to commercialize our products and generate revenue.

Any product candidate for which we obtain marketing approval could be subject to marketing restrictions or withdrawal from the market, and we may be subject to penalties if we fail to comply with regulatory requirements or if we experience unanticipated problems with our products.

Any product candidate for which we obtain marketing approval will be subject to continual requirements of and review by the FDA and other regulatory authorities. These requirements include submissions of safety and other post-marketing information and reports, registration and listing requirements, cGMP requirements, quality assurance and corresponding maintenance of records and documents and requirements regarding the distribution of samples to physicians and recordkeeping. Even if marketing approval of a product candidate is granted, the approval may be subject to limitations on the indicated uses for which the product may be marketed or to the conditions of approval, or contain requirements for costly post-marketing testing and surveillance to monitor the safety or efficacy of the medicine. The FDA closely regulates the post-approval marketing and promotion of drugs to ensure that they are marketed only for the approved indications and in accordance with the provisions of the approved labeling. The FDA imposes stringent restrictions on manufacturers’ communications regarding off-label use and if we do not market our products for their approved indications, we may be subject to enforcement action for off-label marketing and/or promotion.
In addition, later discovery of previously unknown problems with our products, manufacturers or manufacturing processes, or failure to comply with regulatory requirements, may result in, among other things:
restrictions on such products, manufacturers or manufacturing processes;
restrictions on the labeling, marketing, distribution or use of a product;
requirements to conduct post-approval clinical trials;
warning or untitled letters;
withdrawal of the products from the market;
refusal to approve pending applications or supplements to approved applications that we submit;
recall of products;
fines, restitution or disgorgement of profits or revenue;
suspension or withdrawal of marketing approvals;
refusal to permit the import or export of our products;
product seizure; and
injunctions or the imposition of civil or criminal penalties.

If, in the future, we are unable to establish sales and marketing capabilities or to selectively enter into agreements with third parties to sell and market our product candidates, we may not be successful in commercializing our product candidates if and when they are approved.

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We do not have a sales or marketing infrastructure and have no experience in the sale, marketing or distribution of pharmaceutical products. To achieve commercial success for any approved product for which we retain sales and marketing responsibilities, we must either develop a sales and marketing organization or outsource these functions to other third parties. In the future, we may choose to build a focused sales and marketing infrastructure to sell some of our product candidates if and when they are approved.

There are risks involved both with establishing our own sales and marketing capabilities and with entering into arrangements with third parties to perform these services. For example, recruiting and training a sales force is expensive and time consuming and could delay any product launch. If the commercial launch of a product candidate for which we recruit a sales force and establish marketing capabilities is delayed or does not occur for any reason, we would have prematurely or unnecessarily incurred these commercialization expenses. This may be costly, and our investment would be lost if we cannot retain or reposition our sales and marketing personnel.

Factors that may inhibit our efforts to commercialize our product candidates on our own include:
our inability to recruit and retain adequate numbers of effective sales and marketing personnel;
the inability of sales personnel to obtain access to physicians or educate adequate numbers of physicians on the benefits of prescribing any future products; and
unforeseen costs and expenses associated with creating an independent sales and marketing organization.

If we enter into arrangements with third parties to perform sales, marketing and distribution services, our product revenue or the profitability of these product revenue to us may be lower than if we were to market and sell any products that we develop ourselves. In addition, we may not be successful in entering into arrangements with third parties to sell and market our product candidates or may be unable to do so on terms that are favorable to us. We may have little control over such third parties, and any of them may fail to devote the necessary resources and attention to sell and market our products effectively. If we do not establish sales and marketing capabilities successfully, either on our own or in collaboration with third parties, we will not be successful in commercializing our product candidates.

We face substantial competition, which may result in others discovering, developing or commercializing products before or more successfully than we do.

The development and commercialization of new drug products is highly competitive. We face competition with respect to our current product candidates, and will face competition with respect to any product candidates that we may seek to develop or commercialize in the future, from major pharmaceutical companies, specialty pharmaceutical companies and biotechnology companies worldwide. There are a number of large pharmaceutical and biotechnology companies that currently market and sell products or are pursuing the development of products for the treatment of cancer, such as ccRCC. Some of these competitive products and therapies are based on scientific approaches that are the same as or similar to our approach and others are based on entirely different approaches. Potential competitors also include academic institutions, government agencies and other public and private research organizations that conduct research, seek patent protection and establish collaborative arrangements for research, development, manufacturing and commercialization.

Our lead product candidate, mavorixafor, is in clinical development for the treatment of WHIM syndrome, SCN and WM, respectively. We are aware of other companies that are developing CXCR4 inhibitors that are in a similar stage of development as mavorixafor, including Eli Lilly, Pfizer, Bristol-Myers Squibb, or BMS, BioLineRx, Noxxon, Upsher-Smith, Polyphor and Glycomimetics. To our knowledge, there do not appear to be any competitors with programs in development for WHIM syndrome or SCN. With respect to WM, the Dana Farber Cancer Institute has completed enrollment for a trial to study the BMS CXCR4 antibody (IV infusion) in the treatment of WM patients with CXCR4 mutations. In WM, there are several treatment approaches currently being developed, including targeted therapies and immunotherapies (as monotherapies and combination therapies), chemotherapy, stem cell transplantation, and cancer vaccines. With the exception of the BMS monoclonal antibody, none to our knowledge have a mechanism of action that interacts with the CXCR4 receptor.

There are a variety of available drug therapies marketed for cancer. In many cases, these drugs are administered in combination to enhance efficacy. Some of the currently approved drug therapies are branded and subject to patent protection, and others are available on a generic basis. Many of these approved drugs are well-established therapies and are widely accepted by physicians, patients and third-party payors. Insurers and other third-party payors may also encourage the use of generic products. We expect that if our product candidates are approved, they will be priced at a significant premium over competitive generic products. This may make it difficult for us to achieve our business strategy of using our product candidates in combination with existing therapies or replacing existing therapies with our product candidates.

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Our competitors may develop products that are more effective, have a better safety profile, are more convenient or less costly than any that we are developing or that would render our product candidates obsolete or non-competitive. Our competitors may also obtain marketing approval from the FDA or other regulatory authorities for their products sooner than we may obtain approval for our product candidates, which could result in our competitors establishing a strong market position before we are able to enter the market.

Many of our competitors have significantly greater financial resources and expertise in research and development, manufacturing, preclinical testing, conducting clinical trials, obtaining regulatory approvals and marketing approved products than we do. Mergers and acquisitions in the pharmaceutical and biotechnology industries may result in even more resources being concentrated among a smaller number of our competitors. Smaller and other early-stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large and established companies. These third parties may compete with us in recruiting and retaining qualified scientific and management personnel, establishing clinical trial sites and patient registration for clinical trials, as well as in acquiring technologies complementary to, or necessary for, our programs.

We will be required to obtain international regulatory approval to market and sell our product candidates outside of the United States.

We will be required to obtain international regulatory approval to market and sell our product candidates outside of the United States. In order to market and sell our products in the European Union and many other jurisdictions, we must obtain separate marketing approvals and comply with numerous and varying regulatory requirements. The regulatory review and approval process outside the United States generally includes all of the risks associated with obtaining FDA approval, but can involve additional testing and clinical trial requirements and in-country regulatory and/or legal representation. We may need to partner with third parties in order to obtain approvals outside the United States. In addition, in many countries worldwide, it is required that the product be approved for reimbursement before the product can be approved for sale in that country. We may not obtain approvals from regulatory authorities outside the United States on a timely basis, if at all. Approval by the FDA does not ensure approval by regulatory authorities in other countries or jurisdictions, and approval by one regulatory authority outside the United States does not ensure approval by regulatory authorities in other countries or jurisdictions or by the FDA. We may not be able to file for marketing approvals and may not receive necessary approvals to commercialize our products in any market. If we are unable to obtain approval of mavorixafor or any other product candidate by regulatory authorities in the European Union or other countries, the commercial potential of those product candidates may be significantly diminished and our business prospects could decline.

Even if we obtain and maintain approval for our product candidates from the FDA, we may never obtain approval for our product candidates outside of the United States, which would limit our market opportunities and could harm our business.

Approval of a product candidate in the United States by the FDA does not ensure approval of such product candidate by regulatory authorities in other countries or jurisdictions, and approval by one foreign regulatory authority does not ensure approval by regulatory authorities in other foreign countries or by the FDA. If regulatory approval is obtained, sales of any future product candidates outside of the United States will be subject to foreign regulatory requirements governing clinical trials and marketing approval. Even if the FDA grants marketing approval for a product candidate, comparable foreign regulatory authorities also must approve the manufacturing and marketing of the product candidate in those countries. Approval procedures vary among jurisdictions and can involve requirements and administrative review periods different from, and more onerous than, those in the United States, including additional preclinical studies or clinical trials. In many countries outside the United States, a product candidate must be approved for reimbursement before it can be approved for sale in that country. In some cases, the price that we intend to charge for any product candidates, if approved, is also subject to approval. Obtaining approval for any future product candidates in the European Union from the European Commission following the opinion of the European Medicines Agency, if we choose to submit a marketing authorization application there, would be a lengthy and expensive process. Even if a product candidate is approved, the FDA or the European Commission, as the case may be, may limit the indications for which the drug may be marketed, require extensive warnings on the drug labeling or require expensive and time-consuming additional clinical trials or reporting as conditions of approval. Obtaining foreign regulatory approvals and compliance with foreign regulatory requirements could result in significant delays, difficulties and costs for us and could delay or prevent the introduction of any future product candidates in certain countries.

Further, clinical trials conducted in one country may not be accepted by regulatory authorities in other countries. Also, regulatory approval for our product candidates may be withdrawn. If we fail to comply with the regulatory requirements, our target market will be reduced and our ability to realize the full market potential of our product candidates will be harmed and our business, financial condition, results of operations and prospects could be harmed.

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If we seek approval to commercialize our product candidates outside of the United States, a variety of risks associated with international operations could harm our business.

If we seek approval of our product candidates outside of the United States, we expect that we will be subject to additional risks in commercialization including:
different regulatory requirements for approval of therapies in foreign countries;
reduced protection for intellectual property rights;
unexpected changes in tariffs, trade barriers and regulatory requirements;
economic weakness, including inflation, or political instability in particular foreign economies and markets;
compliance with tax, employment, immigration and labor laws for employees living or traveling abroad;
foreign currency fluctuations, which could result in increased operating expenses and reduced revenues, and other obligations incident to doing business in another country;
foreign reimbursement, pricing and insurance regimes;
workforce uncertainty in countries where labor unrest is more common than in the United States;
production shortages resulting from any events affecting raw material supply or manufacturing capabilities abroad; and
business interruptions resulting from geopolitical actions, including war and terrorism, or natural disasters and public health epidemics, such as the ongoing COVID-19 pandemic.

We have no prior experience in these areas. In addition, there are complex regulatory, tax, labor and other legal requirements imposed by many of the individual countries in and outside of Europe with which we will need to comply. Many biopharmaceutical companies have found the process of marketing their own products in foreign countries to be very challenging.

Even if we are able to commercialize mavorixafor or any other product candidate that we develop, the product may become subject to unfavorable pricing regulations, third-party reimbursement practices or healthcare reform initiatives, which would harm our business.

The laws and regulations that govern marketing approvals, pricing, coverage and reimbursement for new drug products vary widely from country to country. Current and future legislation may significantly change the approval requirements in ways that could involve additional costs and cause delays in obtaining approvals. Some countries require approval of the sale price of a drug before it can be marketed. In many countries, the pricing review period begins after marketing or product licensing approval is granted and, in some markets, prescription pharmaceutical pricing remains subject to continuing governmental control even after initial approval is granted. As a result, we might obtain marketing approval for a product in a particular country, but then be subject to price regulations that delay our commercial launch of the product, possibly for lengthy time periods, and negatively impact the revenues we are able to generate from the sale of the product in that country. Adverse pricing limitations may hinder our ability to recoup our investment in one or more product candidates, even if our product candidates obtain marketing approval.

Our ability to commercialize mavorixafor or any other product candidate successfully also will depend in part on the extent to which coverage and adequate reimbursement for these products and related treatments will be available from government health administration authorities, private health insurers and other organizations. Government authorities and other third-party payors, such as private health insurers and health maintenance organizations, decide which medications they will pay for and establish reimbursement levels. A primary trend in the U.S. and E.U. healthcare industries and elsewhere is cost containment.

Government authorities and other third-party payors have attempted to control costs by limiting coverage and the amount of reimbursement for particular medications. Increasingly, third-party payors are requiring that drug companies provide them with predetermined discounts from list prices and are challenging the prices charged for medical products. We cannot be sure that coverage and reimbursement will be available for mavorixafor or any other product that we commercialize and, if coverage and reimbursement is available, the level of reimbursement. Reimbursement may impact the demand for, or the price of, any product candidate for which we obtain marketing approval. Obtaining and maintaining adequate reimbursement for mavorixafor may be particularly difficult because of the higher prices typically associated with drugs directed at smaller populations of patients. In addition, third-party payors are likely to impose strict requirements for reimbursement of a higher priced drug, and any launch of a competitive product is likely to create downward pressure on the price initially charged. If reimbursement is not available or is available only to a limited degree, we may not be able to successfully commercialize any product candidate for which we obtain marketing approval.

There may be significant delays in obtaining coverage and reimbursement for newly approved drugs, and coverage may be more limited than the purposes for which the drug is approved by the applicable regulatory authority. Moreover, eligibility for
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coverage and reimbursement does not imply that any drug will be paid for in all cases or at a rate that covers our costs, including research, development, intellectual property, manufacturing, sale and distribution expenses. Interim reimbursement levels for new drugs, if applicable, may also not be sufficient to cover our costs and may not be made permanent.

Reimbursement rates may vary according to the use of the drug and the clinical setting in which it is used, may be based on reimbursement levels already set for lower cost drugs, and may be incorporated into existing payments for other services. Net prices for drugs may be reduced by mandatory discounts or rebates required by government healthcare programs or private payors and by any future relaxation of laws that presently restrict imports of drugs from countries where they may be sold at lower prices than in the United States. In the United States, third-party payors often rely upon Medicare coverage policy and payment limitations in setting their own reimbursement policies. In the European Union, reference pricing systems and other measures may lead to cost containment and reduced prices. Our inability to promptly obtain coverage and adequate reimbursement rates from both government-funded and private payors for any approved products that we develop could have a material adverse effect on our operating results, our ability to raise capital needed to develop product candidates and commercialize products and our overall financial condition.

Governments outside the United States tend to impose strict price controls, which may adversely affect our revenues, if any.

In some countries, particularly the countries of the European Union, the pricing of prescription pharmaceuticals is subject to governmental control. In these countries, pricing negotiations with governmental authorities can take considerable time after the receipt of marketing approval for a product. To obtain reimbursement or pricing approval in some countries, we may be required to conduct a clinical trial that compares the cost-effectiveness of our product candidate to other available therapies. If reimbursement of our products is unavailable or limited in scope or amount, or if pricing is set at unsatisfactory levels, our business could be harmed, possibly materially.

Product liability lawsuits against us could cause us to incur substantial liabilities and could limit the commercialization of any product candidates we may develop.

We face an inherent risk of product liability exposure related to the testing of our product candidates in human clinical trials and will face an even greater risk with respect to commercial sales of any products that we may develop. If we cannot successfully defend ourselves against claims that our product candidates or products caused injuries, we could incur substantial liabilities. Regardless of merit or eventual outcome, liability claims may result in:
reduced resources of our management to pursue our business strategy;
decreased demand for any products that we may develop;
injury to our reputation and significant negative media attention;
withdrawal of clinical trial participants;
significant costs to defend any related litigation;
substantial monetary awards to trial participants or patients;
loss of revenue;
increased insurance costs; and
the inability to commercialize any products that we may develop.
Although we maintain clinical trial insurance coverage, it may not be adequate to cover all liabilities that we may incur. We anticipate that we will need to increase our insurance coverage as we continue clinical trials or begin commercialization of any products. Insurance coverage is increasingly expensive. We may not be able to obtain or maintain insurance coverage at a reasonable cost or in an amount adequate to satisfy any liability that may arise.

Risks Related to Government Regulation

Our relationships with customers and third-party payors will be subject to applicable anti-kickback, fraud and abuse and other healthcare laws and regulations, which could expose us to criminal sanctions, civil penalties, contractual damages, reputational harm and diminished profits and future earnings.

Although we do not currently have any drugs on the market, we are, and once we begin commercializing our product candidates, we will be subject to additional healthcare statutory and regulatory requirements and enforcement by the federal government and the states and foreign governments in the jurisdictions in which we conduct our business. Healthcare providers, physicians and third-party payors will play a primary role in the recommendation and prescription of any product candidates for which we obtain marketing approval. Our current and future arrangements with third-party payors and customers may expose us to broadly applicable fraud and abuse and other healthcare laws and regulations that may constrain the business or financial
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arrangements and relationships through which we research, market, sell and distribute any products for which we obtain marketing approval. Restrictions under applicable federal and state healthcare laws and regulations include the following:
the federal Anti-Kickback Statute prohibits, among other things, persons from knowingly and willfully soliciting, offering, receiving or paying remuneration, directly or indirectly, in cash or in kind, to induce or reward, or in return for, either the referral of an individual for, or the purchase, order or recommendation of, any good or service, for which payment may be made under a federal healthcare program such as Medicare and Medicaid; a person or entity does not need to have actual knowledge of the statute or specific intent to violate it in order to have committed a violation;
the federal false claims laws impose criminal and civil penalties, including civil whistleblower or qui tam actions, against individuals or entities for knowingly presenting, or causing to be presented, to the federal government, claims for payment that are false or fraudulent or making a false statement to avoid, decrease or conceal an obligation to pay money to the federal government; in addition, the government may assert that a claim including items and services resulting from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the False Claims Act;
the federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, imposes criminal and civil liability for executing a scheme to defraud any healthcare benefit program, or knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false statement in connection with the delivery of or payment for healthcare benefits, items or services; similar to the federal Anti-Kickback Statute, a person or entity does not need to have actual knowledge of the statute or specific intent to violate it in order to have committed a violation;
the federal physician payment transparency requirements, sometimes referred to as the “Sunshine Act” under the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010, or collectively the ACA, require manufacturers of drugs, devices, biologics and medical supplies that are reimbursable under Medicare, Medicaid, or the Children’s Health Insurance Program to report to the Centers for Medicare & Medicaid Services, or CMS information related to payments and other transfers of value to physicians, as defined by such law, and teaching hospitals and the ownership and investment interests of physicians and their immediate family members in such manufacturers;
HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act and its implementing regulations, which also imposes obligations on certain covered entity healthcare providers, health plans, and healthcare clearinghouses as well as their business associates that perform certain services involving the use or disclosure of individually identifiable health information, including mandatory contractual terms, with respect to safeguarding the privacy, security and transmission of individually identifiable health information;
analogous state and foreign laws and regulations, such as state anti-kickback and false claims laws, may apply to sales or marketing arrangements and claims involving healthcare items or services reimbursed by non-governmental third-party payors, including private insurers;
some state laws require pharmaceutical companies to comply with the pharmaceutical industry’s voluntary compliance guidelines and the relevant compliance guidance promulgated by the federal government and may require drug manufacturers to report information related to payments and other transfers of value to physicians and other healthcare providers, drug pricing or marketing expenditures;
state and local laws that require the registration of pharmaceutical sales representatives; and
state and foreign laws also govern the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways and often are not preempted by HIPAA, thus complicating compliance efforts.

Efforts to ensure that our business arrangements with third parties will comply with applicable healthcare laws and regulations will involve substantial costs. It is possible that governmental authorities will conclude that our business practices may not comply with current or future statutes, regulations or case law involving applicable fraud and abuse or other healthcare laws and regulations. If our operations are found to be in violation of any of these laws or any other governmental regulations that may apply to it, we may be subject to significant civil, criminal and administrative penalties, damages, fines, imprisonment, exclusion of products from government funded healthcare programs, such as Medicare and Medicaid, and the curtailment or restructuring of our operations. If any of the physicians or other healthcare providers or entities with whom we expect to do business is found to be not in compliance with applicable laws, they may be subject to significant criminal, civil or administrative sanctions, including exclusions from government funded healthcare programs.

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Current and future legislation may increase the difficulty and cost for us to obtain marketing approval of and commercialize our product candidates and affect the prices we may obtain.

In the United States and some foreign jurisdictions, there have been a number of legislative and regulatory changes and proposed changes regarding the healthcare system that could prevent or delay marketing approval of our product candidates, restrict post-approval activities and affect our ability to sell profitably any product candidates for which we obtain marketing approval.

In the United States, Medicare covers certain drug purchases by the elderly and eligible disabled people and introduced a reimbursement methodology based on average sales prices for physician-administered drugs. In addition, Medicare may limit the number of drugs that will be covered in any therapeutic class. Ongoing cost reduction initiatives and future laws could decrease the coverage and price that we will receive for any approved products. While Medicare beneficiaries are limited to most elderly and certain disabled individual, private payors often follow Medicare coverage policy and payment limitations in setting their own payment rates.

In March 2010, the Affordable Care Act, or ACA, became law. The ACA is a sweeping law intended to broaden access to health insurance, reduce or constrain the growth of healthcare spending, enhance remedies against fraud and abuse, add new transparency requirements for the healthcare and health insurance industries, impose new taxes and fees on the health industry and impose additional health policy reforms. Among the provisions of the ACA of importance to our product candidates are the following:
an annual, nondeductible fee on any entity that manufactures or imports specified branded prescription drugs and biologic products;
an increase in the statutory minimum rebates a manufacturer must pay under the Medicaid Drug Rebate Program;
expansion of healthcare fraud and abuse laws, including the False Claims Act and the Anti-Kickback Statute, new government investigative powers, and enhanced penalties for noncompliance;
a new Medicare Part D coverage gap discount program, in which manufacturers must agree to offer 70% point-of-sale discounts off negotiated prices;
extension of manufacturers’ Medicaid rebate liability;
expansion of eligibility criteria for Medicaid programs;
expansion of the entities eligible for discounts under the Public Health Service Act’s pharmaceutical pricing program;
new requirements to report to CMS financial arrangements with physicians, as defined by such law, and teaching hospitals;
a new requirement to annually report to FDA drug samples that manufacturers and distributors provide to physicians; and
a new Patient-Centered Outcomes Research Institute to oversee, identify priorities in, and conduct comparative clinical effectiveness research, along with funding for such research.

There remain challenges to certain aspects of the ACA, and we expect there will be additional challenges and amendments to the ACA in the future. Since January 2017, President Trump has signed Executive Orders and other directives designed to eliminate the implementation of certain provisions of the ACA or otherwise circumvent some of the requirements for health insurance mandated by the ACA. Concurrently, Congress has considered legislation that would repeal or repeal and replace all or part of the ACA. While Congress has not passed comprehensive repeal legislation, several bills affecting the implementation of certain taxes under the ACA have been signed into law. The Tax Cuts and Jobs Act, or the Tax Act, was enacted, which, among other things, included a provision which repealed, effective January 1, 2019, the tax-based shared responsibility payment imposed by the ACA on certain individuals who fail to maintain qualifying health coverage for all or part of a year that is commonly referred to as the “individual mandate”. In addition, the 2020 federal spending package permanently eliminated, effective January 1, 2020, the ACA-mandated “Cadillac” tax on certain high-cost employer-sponsored health insurance plans and the medical device excise tax on non-exempt medical devices and, effective January 1, 2021, also eliminates the health insurer tax. On December 14, 2018, a Texas U.S. District Court Judge ruled that the ACA is unconstitutional in its entirety because the “individual mandate” was repealed by Congress as part of the Tax Act. Additionally, on December 18, 2019, the U.S. Court of Appeals for the 5th Circuit upheld the District Court ruling that that the individual mandate was unconstitutional and remanded the case back to the District Court to determine whether the remaining provisions of the ACA are invalid as well. On March 2, 2020, the United States Supreme Court granted the petitions for writs of certiorari to review this case, and has allotted one hour for oral arguments, which are expected to occur in the fall. It is unclear how this litigation and other efforts to repeal and replace the ACA will impact the ACA.

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In addition, other legislative changes have been proposed and adopted since the ACA was enacted. These new laws may result in additional reductions in Medicare and other healthcare funding.

There has also been heightened governmental scrutiny over the manner in which manufacturers set prices for their marketed products, which has resulted in several Congressional inquiries and proposed bills designed to, among other things, bring more transparency to product pricing, review the relationship between pricing and manufacturer patient programs, and reform government program reimbursement methodologies for drug products. For example, the Trump administration’s budget proposal for fiscal year 2021 includes a $135 billion allowance to support legislative proposals seeking to reduce drug prices, increase competition, lower out-of-pocket drug costs for patients, and increase patient access to lower-cost generic and biosimilar drugs. On March 10, 2020, the Trump administration sent “principles” for drug pricing to Congress, calling for legislation that would, among other things, cap Medicare Part D beneficiary out-of-pocket pharmacy expenses, provide an option to cap Medicare Part D beneficiary monthly out-of-pocket expenses, and place limits on pharmaceutical price increases. Further, the Trump administration previously released a “Blueprint” to lower drug prices and reduce out of pocket costs of drugs that contained additional proposals to increase drug manufacturer competition, increase the negotiating power of certain federal healthcare programs, incentivize manufacturers to lower the list price of their products, and reduce the out of pocket costs of drug products paid by consumers. The Department of Health and Human Services, or HHS, has solicited feedback on some of these measures and has implemented others under its existing authority. While some of these and other measures may require additional authorization to become effective. Congress and the Trump administration have each indicated that it will continue to seek new legislative and/or administrative measures to control drug costs. Individual states in the United States have also become increasingly active in passing legislation and implementing regulations designed to control pharmaceutical product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures, and, in some cases, designed to encourage importation from other countries and bulk purchasing.

We expect that the ACA, as well as other healthcare reform measures that may be adopted in the future, may result in more rigorous coverage criteria and in additional downward pressure on the price that we will receive for any approved product. It is possible that additional governmental action may be taken to address the COVID-19 pandemic. For example, the Coronavirus Aid, Relief and Economic Security Act, or CARES Act, which was signed into law in March 2020 and is designed to provide financial support and resources to individuals and businesses affected by the COVID-19 pandemic, suspended the 2% Medicare rate reduction sequester from May 1, 2020 through December 31, 2020, and extended the sequester by one year, through 2030. Further, on April 18, 2020, CMS announced that qualified health plan issuers under the ACA may suspend activities related to the collection and reporting of quality data that would have otherwise been reported between May and June 2020 given the challenges healthcare providers are facing responding to the COVID-19 virus. Any reduction in payments from Medicare or other government programs may result in a similar reduction in payments from private payors. The implementation of cost containment measures or other healthcare reforms may prevent us from being able to generate revenue, attain profitability, or commercialize our products.

Legislative and regulatory proposals have been made to expand post-approval requirements and restrict sales and promotional activities for pharmaceutical products. We cannot be sure whether additional legislative changes will be enacted, or whether FDA regulations, guidance or interpretations will be changed, or what the impact of such changes on the marketing approvals, if any, of our product candidates may be. In addition, increased scrutiny by the U.S. Congress of the FDA’s approval process may significantly delay or prevent marketing approval, as well as subject us to more stringent product labeling and post-marketing conditions and other requirements.

We are subject to anti-corruption laws, as well as export control laws, customs laws, sanctions laws and other laws governing our operations. If we fail to comply with these laws, we could be subject to civil or criminal penalties, other remedial measures and legal expenses, which could adversely affect its business, results of operations and financial condition.

Our operations are subject to anti-corruption laws, including the Foreign Corrupt Practices Act, or FCPA, and other anti-corruption laws that apply in countries where we do business and may do business in the future. The FCPA and these other laws generally prohibit us, our officers and employees and intermediaries from bribing, being bribed or making other prohibited payments to government officials or other persons to obtain or retain business or gain some other business advantage. We may in the future operate in jurisdictions that pose a high risk of potential FCPA violations, and may participate in collaborations and relationships with third parties whose actions could potentially subject us to liability under the FCPA or local anti-corruption laws. In addition, we cannot predict the nature, scope or effect of future regulatory requirements to which its international operations might be subject or the manner in which existing laws might be administered or interpreted.
We are also subject to other laws and regulations governing our international operations, including regulations administered by the U.S. government and authorities in the European Union or the United Kingdom, including applicable export control
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regulations, economic sanctions on countries and persons, customs requirements and currency exchange regulations, which we collectively refer to as Trade Control Laws.

There is no assurance that we will be completely effective in ensuring our compliance with all applicable anti-corruption laws, including the FCPA or other legal requirements, including Trade Control Laws. If we are not in compliance with the FCPA and other anti-corruption laws or Trade Control Laws, we may be subject to criminal and civil penalties, disgorgement and other sanctions and remedial measures, and legal expenses, which could have an adverse impact on our business, financial condition, results of operations and liquidity. Likewise, any investigation of any potential violations of the FCPA, other anti-corruption laws or Trade Control Laws by U.S. or other authorities could also have an adverse impact on our reputation, business, results of operations and financial condition.

Risks Related to Our Dependence on Third Parties

We have minimal experience manufacturing our product candidates on a large clinical or commercial scale and have no manufacturing facility. We are currently dependent on a single third party manufacturer for the manufacture of mavorixafor, the active pharmaceutical ingredient, or API, and a single manufacturer of mavorixafor finished drug product capsules. If we experience problems with these third parties, the manufacturing of mavorixafor could be delayed, which could harm our results of operations.

We do not own or operate facilities for the manufacture of mavorixafor or any other product candidate. We currently have no plans to build our own clinical or commercial scale manufacturing capabilities. We currently work exclusively with one manufacturer for the production of mavorixafor, the active pharmaceutical ingredient, or API, and a single manufacturer of mavorixafor finished drug product capsules. We cannot guarantee that these third parties will continue to perform their contractual duties in a timely and satisfactory manner as a result of the COVID-19 pandemic, which could negatively impact our supply chain activities and our clinical supply.

To meet our projected needs for clinical supplies to support our activities through regulatory approval and commercial manufacturing, the manufacturer with whom we currently work will need to increase its frequency and/or scale of production or we will need to find additional or alternative manufacturers. We have not yet secured alternate suppliers in the event the current manufacturer we utilize is unable to meet demand, or if otherwise we experience any problems with them. If such problems arise and we are unable to arrange for alternative third-party manufacturing sources, we are unable to find an alternative third party capable of reproducing the existing manufacturing method or we are unable to do so on commercially reasonable terms or in a timely manner, we may not be able to complete development of our product candidates, or market or distribute them.
Reliance on third-party manufacturers entails risks to which we would not be subject if we manufactured our product candidates ourselves, including reliance on the third party for regulatory compliance and quality assurance, the possibility of breach of the manufacturing agreement by the third party because of factors beyond our control (including a failure to synthesize and manufacture our product candidates or any products that we may eventually commercialize in accordance with our specifications), and the possibility of termination or nonrenewal of the agreement by the third party, based on its own business priorities, at a time that is costly or damaging to us. In addition, the FDA and other regulatory authorities require that our product candidates and any products that we may eventually commercialize be manufactured according to cGMP and similar foreign standards. Drug manufacturers and other entities involved in the manufacture and distribution of approved drugs are required to register their establishments with the FDA and some state agencies, and are subject to periodic unannounced inspections for compliance with cGMP requirements. Changes to the manufacturing process are strictly regulated and often require prior FDA or other regulatory authority approval before being implemented. FDA requirements also require investigation and correction of any deviations from cGMP and impose reporting and documentation requirements upon us and any third-party manufacturers that we may decide to use. Accordingly, the manufacturers must continue to expend time, money and effort in the areas of production and quality control to maintain cGMP compliance. Any failure by our third-party manufacturers to comply with cGMP or failure to scale up manufacturing processes, including any failure to deliver sufficient quantities of product candidates or products if they are approved in a timely manner, could lead to a delay in, or failure to obtain, regulatory approval of any of our product candidates. In addition, such failure could be the basis for the FDA to issue a warning letter, withdraw approvals for product candidates previously granted to us, or take other regulatory or legal action, including recall or seizure, total or partial suspension of production, suspension of ongoing clinical trials, refusal to approve pending applications or supplemental applications, detention of product, refusal to permit the import or export of products, injunction, or imposing civil and criminal penalties.

Our current manufacturer and any future manufacturers may not be able to manufacture our product candidates at a cost or in quantities or in a timely manner necessary to make commercially successful products. If we successfully commercialize any of our product candidates, we may be required to establish large-scale commercial manufacturing capabilities. In addition, as our drug development pipeline increases and matures, we will have a greater need for clinical study and commercial manufacturing capacity. We have no experience manufacturing pharmaceutical products on a commercial scale and some of these
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manufacturers will need to increase their scale of production to meet our projected needs for commercial manufacturing, the satisfaction of which may not be met on a timely basis.

We rely on third-party CROs to conduct our preclinical studies and clinical trials. If these CROs do not successfully carry out their contractual duties or meet expected deadlines, we may not be able to obtain regulatory approval for or commercialize our product candidates and our business could be substantially harmed.

We have relied upon and plan to continue to rely upon third-party contract research organizations, or CROs, and clinical data management organizations to monitor and manage data for our ongoing preclinical and clinical programs. Although we control only certain aspects of their activities, we are responsible for ensuring that each of our studies is conducted in accordance with the applicable protocol and legal, regulatory and scientific standards, and our reliance on the CROs does not relieve us of our regulatory responsibilities. We also rely on third parties to conduct our preclinical studies in accordance with Good Laboratory Practice, or GLP, requirements and the Laboratory Animal Welfare Act of 1966 requirements. We, our CROs and our clinical trial sites are required to comply with regulations and current Good Clinical Practices, or GCP, and comparable foreign requirements to ensure that the health, safety and rights of patients are protected in clinical trials, and that data integrity is assured. Regulatory authorities ensure compliance with GCP requirements through periodic inspections of trial sponsors and trial sites. If we, any of our CROs or our clinical trial sites fail to comply with applicable GCP requirements, the clinical data generated in our clinical trials or a specific site may be deemed unreliable and the FDA or comparable foreign regulatory authorities may require us to perform additional clinical trials before approving our marketing applications.

Our CROs are not our employees, and except for remedies available to us under our agreements with such CROs, we cannot control whether or not they devote sufficient time and resources to our ongoing clinical and preclinical programs. If CROs do not successfully carry out their contractual obligations or meet expected timelines or if the quality or accuracy of the clinical data they obtain is compromised due to the failure to adhere to our clinical protocols, regulatory requirements or for other reasons, our clinical trials may be extended, delayed or terminated and we may not be able to obtain regulatory approval for or successfully commercialize our product candidates. As a result, our results of operations and the commercial prospects for our product candidates would be harmed, our costs could increase and our ability to generate revenues could be delayed.

Our CROs may also fail to meet expected timelines as a result of circumstances beyond their control, including the ongoing COVID-19 pandemic. As a result of the ongoing COVID-19 pandemic, we have experienced delays in clinical trial site activation and slower patient enrollment in our clinical trials of mavorixafor in patients with WHIM and SCN, which could delay our ability to obtain regulatory approval for or successfully commercialize our product candidates.

Disruptions in our supply chain could delay the commercial launch of our product candidates.

Any significant disruption in our supplier relationships could harm our business. We currently rely on a single source supplier of mavorixafor, as well a single supplier for the finished product capsules for mavorixafor. If either of these single source suppliers suffers a major natural or man-made disaster at its manufacturing facility, we would not be able to manufacture mavorixafor on a commercial scale until a qualified alternative supplier is identified. Although alternative sources of supply exist, the number of third party suppliers with the necessary manufacturing and regulatory expertise and facilities is limited, and it could be expensive and take a significant amount of time to arrange for alternative suppliers. Any significant delay in the supply of a product candidate or its key materials for an ongoing clinical study could considerably delay completion of our clinical studies, product testing and potential regulatory approval of our product candidates. If we or our manufacturers are unable to purchase these key materials after regulatory approval has been obtained for our product candidates, the commercial launch of our product candidates would be delayed, which would impair our ability to generate revenues from the sale of our product candidates.

Additionally, if the COVID-19 pandemic persists for an extended period of time and begins to impact essential distribution systems such as FedEx and postal delivery, we could experience disruptions to our supply chain and operations, and associated delays in the manufacturing and supply of our products, which would adversely impact our ability to deliver products to clinical trial sites or to generate sales of and revenues from our approved products.

Our employees, principal investigators, CROs and consultants may engage in misconduct or other improper activities, including noncompliance with regulatory standards and requirements, which could have a material adverse effect on our business.

We are exposed to the risk that our employees, principal investigators, CROs and consultants may engage in fraudulent conduct or other illegal activity. Misconduct by these parties could include intentional failures to comply with FDA regulations or similar regulations of comparable foreign regulatory authorities, to provide accurate information to the FDA or comparable
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foreign regulatory authorities, to comply with manufacturing standards we have established, to comply with federal and state healthcare fraud and abuse laws and regulations and similar laws and regulations established and enforced by comparable foreign regulatory authorities, to report financial information or data accurately or to disclose unauthorized activities to us. In particular, sales, marketing and business arrangements in the healthcare industry are subject to extensive laws and regulations intended to prevent fraud, kickbacks, self-dealing and other abusive practices. These laws and regulations may restrict or prohibit a wide range of pricing, discounting, marketing and promotion, sales commission, customer incentive programs and other business arrangements. Employee or third party misconduct could also involve the improper use of information obtained in the course of clinical trials, which could result in regulatory sanctions and serious harm to our reputation. It is not always possible to identify and deter employee misconduct, and, particularly in light of the work-from-home policies we have implemented in response to the ongoing COVID-19 pandemic and applicable stay-at-home orders, the precautions we take to detect and prevent this activity, such as employee training, may not be effective in controlling unknown or unmanaged risks or losses or in protecting us from governmental investigations or other actions or lawsuits stemming from a failure to be in compliance with such laws or regulations. If any such actions are instituted against us, and we are not successful in defending ourselves or asserting our rights, those actions could have a significant impact on our business and results of operations, including the imposition of significant fines or other sanctions.

We have established, and may seek to selectively establish in the future, collaborations, and, if we are unable to establish them on commercially reasonable terms, we may have to alter our development and commercialization plans.

Our drug development programs and the potential commercialization of our product candidates will require substantial additional cash to fund expenses. For some of our product candidates, we may decide to collaborate with pharmaceutical and biotechnology companies for the development and potential commercialization of those product candidates.
We face significant competition in seeking appropriate collaborators. Whether we reach a definitive agreement for a collaboration will depend, among other things, upon our assessment of the collaborator’s resources and expertise, the terms and conditions of the proposed collaboration and the proposed collaborator’s evaluation of a number of factors. Those factors may include the design or results of clinical trials, the likelihood of approval by the FDA or similar regulatory authorities outside the United States, the potential market for the subject product candidate, the costs and complexities of manufacturing and delivering such product candidate to patients, the potential of competing products, the existence of uncertainty with respect to our ownership of technology, which can exist if there is a challenge to such ownership without regard to the merits of the challenge and industry and market conditions generally. The collaborator may also consider alternative product candidates for similar indications that may be available to collaborate on and whether such a collaboration could be more attractive than the one with us for our product candidates.

Future development and potential commercialization of mavorixafor in ccRCC will be pursued only as part of a potential strategic collaboration. In addition, we have entered into an agreement with Abbisko Therapeutics to develop and commercialize mavorixafor, in combination with checkpoint inhibitors or other agents in Greater China for oncology indications. No assurance can be given, however, that any current or future strategic collaboration will prove to be successful.

Collaborations are complex and time-consuming to negotiate and document. In addition, there have been a significant number of recent business combinations among large pharmaceutical companies that have resulted in a reduced number of potential future collaborators.

If we decide to expand or modify one or our existing collaboration agreements or to collaborate with a new third party in connection with any of our development programs or product candidates, we may not be able to negotiate collaborations on a timely basis, on acceptable terms, or at all. If we are unable to do so, we may have to curtail the development program or the product candidate for which we are seeking to collaborate, reduce or delay our development program or one or more of our other development programs, delay our potential commercialization or reduce the scope of any sales or marketing activities, or increase our expenditures and undertake development or commercialization activities at our own expense. If we elect to increase our expenditures to fund development or commercialization activities on our own, we may need to obtain additional capital, which may not be available to us on acceptable terms or at all. If we do not have sufficient funds, we may not be able to further develop our product candidates or bring them to market and generate product revenue.

We may depend on such collaborations for the development and commercialization of our product candidates. If those collaborations are not successful, we may not be able to capitalize on the market potential of our product candidates.

We have, and may selectively seek in the future, third-party collaborators for the development and commercialization of our product candidates. Our likely collaborators for any collaboration arrangements include large and mid-size pharmaceutical companies, regional and national pharmaceutical companies and biotechnology companies. If we enter into any such arrangements with any third parties, we will likely have limited control over the amount and timing of resources that our collaborators dedicate to the development or commercialization of our product candidates. Our ability to generate revenue from
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these arrangements will depend on our collaborators’ abilities to successfully perform the functions assigned to them in these arrangements.

Collaborations involving our product candidates pose many risks to us, including that:
collaborators have significant discretion in determining the efforts and resources that they will apply to these collaborations;
collaborators may not pursue development and commercialization of our product candidates or may elect not to continue or renew development or commercialization programs based on clinical trial results, changes in the collaborator’s strategic focus or available funding or external factors such as an acquisition that diverts resources or creates competing priorities;
collaborators may delay clinical trials, provide insufficient funding for a clinical trial program, stop a clinical trial or abandon a product candidate, repeat or conduct new clinical trials or require a new formulation of a product candidate for clinical testing;
collaborators could independently develop, or develop with third parties, products that compete directly or indirectly with our product candidates or products if the collaborators believe that competitive products are more likely to be successfully developed or can be commercialized under terms that are more economically attractive than ours;
collaborators with marketing and distribution rights to one or more product candidates or products may not commit sufficient resources to the marketing and distribution of such drugs;
collaborators may not properly maintain or defend our intellectual property rights or may use our proprietary information in such a way as to invite litigation that could jeopardize or invalidate our proprietary information or expose us to potential litigation;
disputes may arise between the collaborators and us that result in the delay or termination of the research, development or commercialization of our product candidates or products or that result in costly litigation or arbitration that diverts management attention and resources;
we may lose certain valuable rights under circumstances identified in our collaborations if we undergo a change of control;
collaborations may be terminated and, if terminated, may result in a need for additional capital to pursue further development or commercialization of the applicable product candidates; and
collaboration agreements may not lead to development or commercialization of product candidates in the most efficient manner or at all. In addition, if a future collaborator of ours were to be involved in a business combination, the continued pursuit and emphasis on our product development or commercialization program under such collaboration could be delayed, diminished or terminated.

We may engage in future acquisitions or in-licenses of technology that could disrupt our business, cause dilution to our stockholders and harm our financial condition and operating results.

While we currently have no specific plans to acquire any other businesses or in-license any additional products or technology, we may, in the future, make acquisitions or licenses of, or investments in, companies, products or technologies that we believe are a strategic or commercial fit with our current product candidates and business or otherwise offer opportunities for us. In connection with these acquisitions or investments, we may:
issue stock that would dilute our stockholders’ percentage of ownership;
expend cash;
incur debt and assume liabilities; and
incur amortization expenses related to intangible assets or incur large and immediate write-offs.

We also may be unable to find suitable acquisition or license candidates and we may not be able to complete acquisitions or licenses on favorable terms, if at all. If we do complete an acquisition or license, we cannot assure you that it will ultimately strengthen our competitive position or that it will not be viewed negatively by customers, financial markets or investors.

Further, the Merger poses, and future acquisitions or licenses could also pose, numerous additional risks to our operations, including:
problems integrating the purchased or licensed business, products or technologies;
increases to our expenses
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the failure to have discovered undisclosed liabilities of the acquired or licensed asset or company;
diversion of management’s attention from their day-to-day responsibilities;
harm to our operating results or financial condition;
entrance into markets in which we have limited or no prior experience; and
potential loss of key employees, particularly those of the acquired entity.
We may not be able to complete one or more acquisitions or effectively integrate the operations, products or personnel gained through any such acquisition without a material adverse effect on our business, financial condition and results of operations.

Risks Related to Our Intellectual Property

Recent laws and rulings by U.S. courts make it difficult to predict how patents will be issued or enforced in our industry.
Changes in either the patent laws or interpretation of the patent laws in the United States and other countries may have a significant impact on our ability to protect our technology and enforce our intellectual property rights.

There have been no materialnumerous recent changes to the patent laws and to the rules of the United States Patent and Trademark Office, or USPTO, which may have a significant impact on our ability to protect our technology and enforce our intellectual property rights. For example, the Leahy-Smith America Invents Act, or AIA, which was signed into law in 2011, includes a transition from a “first-to-invent” system to a “first-to-file” system, and changes the way issued patents are challenged. Certain changes, such as the institution of inter partes review proceedings, that allow third parties to challenge newly issued patents, came into effect on September 16, 2012. The burden of proof required for challenging a patent in these proceedings is lower than in district court litigation, and patents in the biologics and pharmaceuticals industry have been successfully challenged using these new post-grant challenges. In addition, the U.S. Supreme Court has ruled on several patent cases in recent years, either narrowing the scope of patent protection available in specified circumstances or weakening the rights of patent owners in specified situations. Depending on decisions by the U.S. Congress, the federal courts, and the USPTO, these substantive changes to patent law associated with the AIA may further weaken our ability to obtain new patents or to enforce our existing patents and patents that we might obtain in the future, all of which could harm our business.

Furthermore, the patent positions of companies engaged in the development and commercialization of biologics and pharmaceuticals are particularly uncertain. Two cases involving diagnostic method claims and “gene patents” have recently been decided by the Supreme Court. On March 20, 2012, the Supreme Court issued a decision in Mayo Collaborative Services v. Prometheus Laboratories, Inc., or Prometheus, a case involving patent claims directed to measuring a metabolic product in a patient to optimize a drug dosage amount for the patient. According to the Supreme Court, the addition of well-understood, routine or conventional activity such as “administering” or “determining” steps was not enough to transform an otherwise patent ineligible natural phenomenon into patent eligible subject matter. On July 3, 2012, the USPTO issued guidance indicating that process claims directed to a law of nature, a natural phenomenon or an abstract idea that do not include additional elements or steps that integrate the natural principle into the claimed invention such that the natural principle is practically applied and the claim amounts to significantly more than the natural principle itself should be rejected as directed to non-statutory subject matter. On June 13, 2013, the Supreme Court issued its decision in Association for Molecular Pathology v. Myriad Genetics, Inc., or Myriad, a case involving patent claims held by Myriad Genetics, Inc. relating to the breast cancer susceptibility genes BRCA1 and BRCA2. Myriad held that isolated segments of naturally occurring DNA, such as the DNA constituting the BRCA1 and BRCA2 genes, is not patent eligible subject matter, but that complementary DNA, which is an artificial construct that may be created from RNA transcripts of genes, may be patent eligible.

We cannot assure you that our efforts to seek patent protection for our technology and products will not be negatively impacted by the changes described above, future rulings in district court cases or changes in guidance or procedures issued by the USPTO. We cannot fully predict what impact the Supreme Court’s decisions may have on the ability of life science companies to obtain or enforce patents relating to their products and technologies in the future.

Moreover, although the Supreme Court has held in Myriad that isolated segments of naturally occurring DNA are not patent-eligible subject matter, certain third parties could allege that activities that we may undertake infringe other gene-related patent claims, and we may deem it necessary to defend ourselves against these claims by asserting non-infringement and/or invalidity positions, or pay to obtain a license to these claims. In any of the foregoing or in other situations involving third-party intellectual property rights, if we are unsuccessful in defending against claims of patent infringement, we could be forced to pay damages or be subjected to an injunction that would prevent us from utilizing the patented subject matter. Such outcomes could harm our business.

If we are unable to protect our intellectual property rights, our competitive position could be harmed.

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We depend on our ability to protect our proprietary technology. We rely on trade secret, patent, copyright and trademark laws, and confidentiality, licensing and other agreements with employees and third parties, all of which offer only limited protection. Our success depends in large part on our ability to obtain and maintain patent protection in the United States and other countries with respect to our proprietary technology and products. Where we have the right to do so under our license agreements, we seek to protect our proprietary position by filing patent applications in the United States and abroad related to our novel technologies and products that are important to our business.

The patent positions of biotechnology and pharmaceutical companies generally are highly uncertain, involve complex legal and factual questions and have in recent years been the subject of much litigation. As a result, the issuance, scope, validity, enforceability and commercial value of our patents, including those patent rights licensed to us by third parties, are highly uncertain.

The steps we have taken to police and protect our proprietary rights may not be adequate to preclude misappropriation of our proprietary information or infringement of our intellectual property rights, both inside and outside the United States. The rights already granted under any of our currently issued patents and those that may be granted under future issued patents may not provide us with the proprietary protection or competitive advantages that we are seeking. If we are unable to obtain and maintain patent protection for our technology and products, or if the scope of the patent protection obtained is not sufficient, our competitors could develop and commercialize technology and products similar or superior to ours, and our ability to successfully commercialize our technology and products may be adversely affected.

With respect to patent rights, we do not know whether any of the pending patent applications for any of our product candidates will result in the issuance of patents that protect our technology or products, or which will effectively prevent others from commercializing competitive technologies and products. Our pending applications cannot be enforced against third parties practicing the technology claimed in such applications unless and until a patent issues from such applications. Further, the examination process may require us or our licensors to narrow the claims, which may limit the scope of patent protection that may be obtained. Although our license agreement with Genzyme includes a number of issued patents that are exclusively licensed to us, the issuance of a patent is not conclusive as to its inventorship, scope, validity or enforceability, issued patents that we own or have licensed from third parties may be challenged in the courts or patent offices in the United States and abroad. Such challenges may result in the loss of patent protection, the narrowing of claims in such patents, or the invalidity or unenforceability of such patents, which could limit our ability to stop others from using or commercializing similar or identical technology and products, or limit the duration of the patent protection for our technology and products. Protecting against the unauthorized use of our patented technology, trademarks and other intellectual property rights is expensive, difficult and may, in some cases, not be possible. In some cases, it may be difficult or impossible to detect third party infringement or misappropriation of our intellectual property rights, even in relation to issued patent claims, and proving any such infringement may be even more difficult.

We could be required to incur significant expenses to obtain our intellectual property rights, and we cannot ensure that we will obtain meaningful patent protection for our product candidates.

The patent prosecution process is expensive and time-consuming, and we may not be able to file and prosecute all necessary or desirable patent applications at a reasonable cost or in a timely manner. In addition, it is also possible that we will fail to identify patentable aspects of further inventions made in the course of our development and commercialization activities before they are publicly disclosed, making it too late to obtain patent protection on them. Further, given the amount of time required for the development, testing and regulatory review of new product candidates, patents protecting such candidates might expire before or shortly after such candidates are commercialized. We expect to seek extensions of patent terms where these are available in any countries where we are prosecuting patents. This includes in the United States under the Drug Price Competition and Patent Term Restoration Act of 1984, which permits a patent term extension of up to five years beyond the expiration of a patent that covers an approved product where the permission for the commercial marketing or use of the product is the first permitted commercial marketing or use, and as long as the remaining term of the patent does not exceed 14 years. However, the applicable authorities, including the FDA in the United States, and any equivalent regulatory authority in other countries, may not agree with our assessment of whether such extensions are available, and may refuse to grant extensions to our patents, or may grant more limited extensions than we request. If this occurs, our competitors may be able to take advantage of our investment in development and clinical trials by referencing our clinical and preclinical data and launch their product earlier than might otherwise be the case. Changes in either the patent laws or interpretation of the patent laws in the United States and other countries may diminish the value of our patents or narrow the scope of our patent protection. The laws of foreign countries may not protect our rights to the same extent as the laws of the United States, and these foreign laws may also be subject to change. Publications of discoveries in the scientific literature often lag behind the actual discoveries, and patent applications in the United States and other jurisdictions are typically not published until 18 months after filing or in some cases not at all. Therefore, we cannot be certain that we or our licensors were the first to make the inventions claimed in our owned or
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licensed patents or pending patent applications, or that we or our licensors were the first to file for patent protection of such inventions.

In March 2013, the United States transitioned to a “first to file” system in which the first inventor to file a patent application will be entitled to the patent. Third parties are allowed to submit prior art prior to the issuance of a patent by the USPTO and may become involved in post-grant review or derivation proceedings for applications filed on or after March 16, 2013, interference proceedings for applications filed before March 16, 2013, ex parte reexamination, or inter partes review challenging our patent rights or the patent rights of others. An adverse determination in any such submission, proceeding or litigation could reduce the scope of, or invalidate, our patent rights, which could adversely affect our competitive position with respect to third parties.

Obtaining and maintaining our patent protection depends on compliance with various procedural, documentary, fee payment and other requirements imposed by governmental patent agencies, and our patent protection could be reduced or eliminated for non-compliance with these requirements.

Periodic maintenance fees on any issued patent are due to be paid to the USPTO, and foreign patent agencies in several stages over the lifetime of the patent. The USPTO and various foreign governmental patent agencies require compliance with a number of procedural, documentary, fee payment and other requirements during the patent application process. While an inadvertent lapse can in many cases be cured by payment of a late fee or by other means in accordance with the applicable rules, there are situations in which noncompliance can result in abandonment or lapse of the patent or patent application, resulting in partial or complete loss of patent rights in the relevant jurisdiction. Non-compliance events that could result in abandonment or lapse of a patent or patent application include, but are not limited to, failure to respond to official actions within prescribed time limits, non-payment of fees and failure to properly legalize and submit formal documents. If we or our licensors fail to maintain the patents and patent applications covering our product candidates, our competitors might be able to enter the market, which would have a material adverse effect on our business.

Patent terms may be inadequate to protect our competitive position on our product candidates for an adequate amount of time.

Patents have a limited lifespan. In the United States, if all maintenance fees are timely paid, the natural expiration of a patent is generally 20 years from its earliest U.S. non-provisional filing date. Various extensions may be available, but the life of a patent, and the protection it affords, is limited. Even if patents covering our product candidates are obtained, once the patent life has expired, we may be open to competition from competitive products, including generics or biosimilars. Given the amount of time required for the development, testing and regulatory review of new product candidates, patents protecting such candidates might expire before or shortly after such candidates are commercialized. As a result, our owned and licensed patent portfolio may not provide us with sufficient rights to exclude others from commercializing products similar or identical to ours.

We may become involved in lawsuits to protect or enforce our intellectual property, which could be expensive, time consuming and unsuccessful.

In addition to the possibility of litigation relating to infringement claims asserted against it, we may become a party to other patent litigation and other proceedings, including inter partes review proceedings, post-grant review proceedings, derivation proceedings declared by the USPTO and similar proceedings in foreign countries, regarding intellectual property rights with respect to our current or future technologies or product candidates or products. The cost to us of any patent litigation or other proceeding, even if resolved in our favor, could be substantial. Some of our competitors may be able to sustain the costs of such litigation or proceedings more effectively than we can because of their substantially greater financial resources. Patent litigation and other proceedings may also absorb significant management time. Uncertainties resulting from the initiation and continuation of patent litigation or other proceedings could impair our ability to compete in the marketplace.

Competitors may infringe or otherwise violate our intellectual property, including patents that may issue to or be licensed by us. As a result, we may be required to file claims in an effort to stop third-party infringement or unauthorized use. Any such claims could provoke these parties to assert counterclaims against us, including claims alleging that we infringe their patents or other intellectual property rights. This can be prohibitively expensive, particularly for a company of our size, and time-consuming, and even if we are successful, any award of monetary damages or other remedy we may receive may not be commercially valuable. In addition, in an infringement proceeding, a court may decide that our asserted intellectual property is not valid or is unenforceable, or may refuse to stop the other party from using the technology at issue on the grounds that our intellectual property does not cover its technology. An adverse determination in any litigation or defense proceedings could put our intellectual property at risk of being invalidated or interpreted narrowly and could put our patent applications at risk of not issuing.
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If the breadth or strength of our patent or other intellectual property rights is compromised or threatened, it could allow third parties to commercialize our technology or products or result in our inability to commercialize our technology and products without infringing third-party intellectual property rights. Further, third parties may be dissuaded from collaborating with us.
Interference or derivation proceedings brought by the USPTO or its foreign counterparts may be necessary to determine the priority of inventions with respect to our patent applications, and we may also become involved in other proceedings, such as re-examination proceedings, before the USPTO or its foreign counterparts. Due to the substantial competition in the pharmaceutical space, the number of such proceedings may increase. This could delay the prosecution of our pending patent applications or impact the validity and enforceability of any future patents that we may obtain. In addition, any such litigation, submission or proceeding may be resolved adversely to us and, even if successful, may result in substantial costs and distraction to our management.

Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation, there is a risk that some of our confidential information could be compromised by disclosure during this type of litigation. Moreover, intellectual property law relating to the fields in which we operate is still evolving and, consequently, patent and other intellectual property positions in our industry are subject to change and are often uncertain. We may not prevail in any of these suits or other efforts to protect our technology, and the damages or other remedies awarded, if any, may not be commercially valuable. During the course of this type of litigation, there could be public announcements of the results of hearings, motions or other interim proceedings or developments. If securities analysts or investors perceive these results to be negative, the market price for our common stock could be significantly harmed.

If we fail to comply with our obligations in the agreements under which we license intellectual property rights from third parties or otherwise experience disruptions to our business relationships with our licensors, we could lose intellectual property rights that are important to our business.

We are a party to several license agreements and may need to obtain additional licenses from others to advance our research and development activities or allow the commercialization of our current product candidates and any that we may identify and pursue in the future. Our currently license agreements impose, and we expect that future license agreements will impose, various development, diligence, commercialization, and other obligations on us. In spite of our efforts, our licensors might conclude that we have materially breached our obligations under such license agreements and might therefore terminate the license agreements, thereby removing or limiting our ability to develop and commercialize products and technology covered by these license agreements. If these in-licenses are terminated, or if the underlying patents fail to provide the intended exclusivity, competitors or other third parties may gain the freedom to seek regulatory approval of, and to market, products identical to ours and we may be required to cease our development and commercialization of our product candidates. Any of the foregoing could have a material adverse effect on our competitive position, business, financial conditions, results of operations, and prospects.
Moreover, disputes may arise regarding intellectual property subject to a licensing agreement, including:
the scope of rights granted under the license agreement and other interpretation-related issues;
the extent to which our product candidates, technology and processes infringe on intellectual property of the licensor that is not subject to the licensing agreement;
the sublicensing of patent and other rights under our collaborative development relationships;
our diligence obligations under the license agreement and what activities satisfy those diligence obligations;
the inventorship and ownership of inventions and know-how resulting from the joint creation or use of intellectual property by our licensors and us and our partners; and
the priority of invention of patented technology.

In addition, the agreements under which we currently license intellectual property or technology from third parties are complex, and certain provisions in such agreements may be susceptible to multiple interpretations. The resolution of any contract interpretation disagreement that may arise could narrow what we believe to be the scope of our rights to the relevant intellectual property or technology, or increase what we believe to be our financial or other obligations under the relevant agreement, either of which could have a material adverse effect on our business, financial condition, results of operations, and prospects. Moreover, if disputes over intellectual property that we have licensed prevent or impair our ability to maintain our current licensing arrangements on commercially acceptable terms, we may be unable to successfully develop and commercialize the affected product candidates, which could have a material adverse effect on our business, financial conditions, results of operations, and prospects.

From time to time, we may need to rely on licenses to proprietary technologies, which may be difficult or expensive to obtain or we may lose certain licenses which may be difficult to replace.

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We may need to obtain licenses to patents and other proprietary rights held by third parties to develop, manufacture and market our product candidates. If we are unable to timely obtain these licenses on commercially reasonable terms and maintain these licenses, our ability to commercially market our product candidates may be inhibited or prevented, which could have a material adverse effect on our business, results of operations, financial condition and cash flows.

Third parties may initiate legal proceedings alleging that we are infringing their intellectual property rights, the outcome of which would be uncertain and could have a material adverse effect on the success of our business.

Our commercial success depends upon our ability to develop, manufacture, market and sell our product candidates, and to use our proprietary technologies without infringing the proprietary rights of third parties. We may become party to, or threatened with, future adversarial proceedings or litigation regarding intellectual property rights with respect to our products and technology, including interference and various post grant proceedings before the USPTO, non-U.S. opposition proceedings, and German nullity proceedings. Third parties may assert infringement claims against us based on existing patents or patents that may be granted in the future.

As a result of any such infringement claims, or to avoid potential claims, we may choose or be compelled to seek intellectual property licenses from third parties. These licenses may not be available on acceptable terms, or at all. Even if we are able to obtain a license, the license would likely obligate us to pay license fees or royalties or both, and the rights granted to us likely would be nonexclusive, which would mean that our competitors also could obtain licenses to the same intellectual property. Ultimately, we could be prevented from commercializing a product candidate or technology or be forced to cease some aspect of our business operations if, as a result of actual or threatened infringement claims, we are unable to enter into licenses of the relevant intellectual property on acceptable terms. Further, if we attempt to modify a product candidate or technology or to develop alternative methods or products in response to infringement claims or to avoid potential claims, we could incur substantial costs, encounter delays in product introductions or interruptions in sales. Ultimately, such efforts could be unsuccessful.

Parties making claims against us may obtain injunctive or other equitable relief, which could effectively block our ability to further develop and commercialize our product candidates that we may identify. Defense of these claims, regardless of their merit, would involve substantial litigation expense and would be a substantial diversion of employee resources from our business. In the event of a successful claim of infringement against us, we may have to pay substantial damages, including treble damages and attorneys’ fees for willful infringement, pay royalties, redesign our infringing products or obtain one or more licenses from third parties, which may be impossible or require substantial time and monetary expenditure.
Parties making claims against us may be able to sustain the costs of complex patent litigation more effectively than we can because they have substantially greater resources. Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation or administrative proceedings, there is a risk that some of our confidential information could be compromised by disclosure. In addition, any uncertainties resulting from the initiation and continuation of any litigation could have material adverse effect on our ability to raise additional funds or otherwise have a material adverse effect on our business, results of operations, financial condition and prospects.

Intellectual property litigation could cause us to spend substantial resources and distract our personnel from their normal responsibilities.

Litigation or other legal proceedings relating to intellectual property claims, with or without merit, is unpredictable and generally expensive and time consuming and is likely to divert significant resources from our core business, including distracting our technical and management personnel from their normal responsibilities. Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation, there is a risk that some of our confidential information could be compromised by disclosure during this type of litigation. In addition, there could be public announcements of the results of hearings, motions or other interim proceedings or developments and if securities analysts or investors perceive these results to be negative, it could have a substantial adverse effect on the price of our common stock and negatively impact our ability to raise additional funds. Such litigation or proceedings could substantially increase our operating losses and reduce the resources available for development activities or any future sales, marketing or distribution activities.
We may not have sufficient financial or other resources to adequately conduct such litigation or proceedings. Some of our competitors may be able to sustain the costs of such litigation or proceedings more effectively than we can because of their greater financial resources and more mature and developed intellectual property portfolios. Accordingly, despite our efforts, we may not be able to prevent third parties from infringing upon or misappropriating or from successfully challenging our intellectual property rights. Uncertainties resulting from the initiation and continuation of patent litigation or other proceedings could have a material adverse effect on our ability to compete in the marketplace.

Our trade secrets are difficult to protect and if we are unable to protect the confidentiality of our trade secrets, our business and competitive position would be harmed.
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In addition to seeking patents for some of our technologies and product candidates, we also rely on trade secrets, including unpatented know-how, technology and other proprietary information, to maintain our competitive position. We seek to protect these trade secrets, in part, by entering into non-disclosure and confidentiality agreements with parties who have access to them, such as our employees, corporate collaborators, outside scientific collaborators, contract manufacturers, consultants, advisors and other third parties. We also enter into confidentiality, non-competition, non-solicitation, and invention assignment agreements with our employees and consultants that obligate them to assign to us any inventions developed in the course of their work for us. However, we cannot guarantee that we have executed these agreements with each party that may have or have had access to our trade secrets or that the agreements we have executed will provide adequate protection. Despite these efforts, any of these parties may breach the agreements and disclose our proprietary information, including our trade secrets, and we may not be able to obtain adequate remedies for such breaches. As a result, we may be forced to bring claims against third parties, or defend claims that they bring against us, to determine ownership of what we regard as our intellectual property. Monitoring unauthorized disclosure is difficult and we do not know whether the procedures that we have followed to prevent such disclosure are or will be adequate. Enforcing a claim that a party illegally disclosed or misappropriated a trade secret is difficult, expensive and time-consuming, and the outcome is unpredictable. In addition, some courts inside and outside the United States may be less willing or unwilling to protect trade secrets. If any of the technology or information that we protect as trade secrets were to be lawfully obtained or independently developed by a competitor, we would have no right to prevent them from using that technology or information to compete with us. If any of our trade secrets were to be disclosed to, or independently developed by, a competitor, our competitive position would be harmed.

We may be subject to claims that our employees have wrongfully used or disclosed alleged trade secrets of their former employers.

Our employees, including members of our senior management, were previously employed at other biotechnology or pharmaceutical companies, including our competitors or potential competitors. All such individuals, including each member of our senior management, executed proprietary rights, non-disclosure and non-competition agreements in connection with such previous employment. Although we try to ensure that our employees do not use the proprietary information or know-how of others in their work for us, we may be subject to claims that we or these employees have used or disclosed intellectual property, including trade secrets or other proprietary information, of any such employee’s former employer. We are not aware of any threatened or pending claims related to these matters or concerning the agreements with our senior management, but in the future litigation may be necessary to defend against such claims. If we fail in defending any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights or personnel. Even if we are successful in defending against such claims, litigation could result in substantial costs and be a distraction to management.

We may not be able to protect our intellectual property rights throughout the world.

Filing, prosecuting and defending patents on all of our product candidates throughout the world would be prohibitively expensive. In general, we have sought patent protection of our intellectual property in the following jurisdictions: US, Canada, China, Japan and in countries within Europe via the European Patent Office. Competitors may use our technologies in jurisdictions where we have not obtained patent protection to develop their own products and further, may export otherwise infringing products to territories where we have patent protection, but where enforcement is not as strong as that in the United States. These products may compete with our products in jurisdictions where we do not have any issued patents and our patent claims or other intellectual property rights may not be effective or sufficient to prevent them from so competing.

Many companies have encountered significant problems in protecting and defending intellectual property rights in foreign jurisdictions. The legal systems of certain countries, particularly certain developing countries, do not favor the enforcement of patents and other intellectual property protection, particularly those relating to biopharmaceuticals, which could make it difficult for us to stop the infringement of our patents or marketing of competing products in violation of our proprietary rights generally. Proceedings to enforce our patent rights in foreign jurisdictions could result in substantial cost and divert our efforts and attention from other aspects of our business.

Risks Related to Our Business Operations, Employee Matters and Managing Growth

The global coronavirus pandemic is adversely affecting, and is expected to continue to adversely affect, our business, including our clinical trials and preclinical studies.

Our business could be adversely affected by public health crises such as pandemics or similar outbreaks in regions where we have concentrations of clinical trial sites or other business operations, and could cause significant disruption in the operations of third party manufacturers and contract research organizations, or CROs, upon whom we rely. In December 2019, a novel strain
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of coronavirus, SARS-CoV-2, which causes coronavirus disease 2019 or COVID-19, surfaced in Wuhan, China.In March 2020, the World Health Organization declared the COVID-19 outbreak a pandemic. The COVID-19 pandemic has resulted in travel and other restrictions in order to reduce the spread of the disease, including state and local orders across the United States and other countries worldwide, which, among other things, direct individuals to stay at their places of residence, direct businesses and governmental agencies to cease non-essential operations at physical locations, prohibit certain non-essential gatherings, and order cessation of non-essential travel. In March 2020, the Governor of Massachusetts ordered all individuals living in the Commonwealth of Massachusetts to stay at their place of residence for an indefinite period of time (subject to certain exceptions to facilitate authorized necessary activities) to mitigate the impact of the COVID-19 pandemic, so our workforce transitioned to working remotely. The effects of the executive orders, the shelter-in-place or stay-at-home orders and our work-from-home policies may negatively impact productivity, disrupt our business and delay our clinical programs and timelines, the magnitude of which will depend, in part, on the length and severity of the restrictions and other limitations on our ability to conduct our business in the ordinary course. In addition, because of the challenging immune profile of both immunodeficient patients and cancer patients, COVID-19 may impact our clinical trial patients more significantly than clinical trials with patients who are not immunocompromised. These and similar, and perhaps more severe, disruptions in our operations could negatively impact our business, operating results and financial condition.

Quarantines, stay-at-home and similar government orders related to COVID-19 may adversely impact our business operations and the business operations of our CROs conducting our clinical trials and our third-party manufacturing facilities in the United States and other countries. We cannot guarantee that these third parties will continue to perform their contractual duties in a timely and satisfactory manner as a result of the COVID-19 pandemic, which could negatively impact our supply chain activities and our clinical supply. We have experienced challenges in providing trial drugs to patients enrolled in our clinical trials, and we are implementing direct-to-patient shipments from clinical sites. If the COVID-19 pandemic persists for an extended period of time and begins to impact essential distribution systems such as FedEx and postal delivery, we could experience disruptions to our supply chain and operations, and associated delays in the manufacturing and supply of our product candidates, which would adversely impact our ability to carry out our clinical trials.

As a result of the COVID-19 outbreak, or similar pandemics, we are experiencing disruptions that could severely impact our business, clinical trials and preclinical studies, including:

delays or difficulties in enrolling patients in our clinical trials, including travel restrictions on patients and constraints on the capacity of our clinical trial sites;
delays or difficulties in clinical site activation, including difficulties in training clinical site investigators and clinical site staff;
diversion or prioritization of healthcare resources away from the conduct of clinical trials and towards the COVID-19 pandemic, including the diversion of hospitals serving as our clinical trial sites and hospital staff supporting the conduct of our clinical trials, particularly for clinical trials that require in-patient monitoring following administration of the product candidate;
delays or disruptions in the availability of clinical site staff, who, as healthcare providers, may have heightened exposure to COVID-19, would adversely impact our clinical trial operations;
interruption of our key clinical trial activities, such as clinical assessments at pre-specified timepoints during the trial and clinical trial site data monitoring, due to limitations on travel imposed or recommended by governmental entities, employers and others or interruption of clinical trial subject visits and study procedures (particularly any procedures that may be deemed non-essential), which may impact the integrity of subject data and clinical study endpoints;
limitations on employee resources that would otherwise be focused on the conduct of our preclinical studies and clinical trials, including because of sickness of employees or their families, the desire of employees to avoid contact with large groups of people, an increased reliance on working from home or mass transit disruptions; and
reduced ability to engage with the medical and investor communities due to the cancellation of conferences scheduled throughout the year.

These and other factors describedarising from the COVID-19 pandemic could worsen in countries that are already afflicted with COVID-19, could continue to spread to additional countries, or could return to countries where the pandemic has been partially contained, each of which could continue to adversely impact our ability to conduct clinical trials and our business generally, and could have a material adverse impact on our operations and financial condition and results.

The spread of COVID-19, which has caused a broad impact globally, may materially affect us economically. While the potential economic impact brought by, and the duration of, COVID-19 may be difficult to assess or predict, a widespread
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pandemic could result in significant disruption of global financial markets, reducing our ability to access capital, which could in the future negatively affect our liquidity. In addition, a recession or market correction resulting from the spread of COVID-19 could materially affect our business and the value of our common stock.

The global pandemic of COVID-19 continues to rapidly evolve. The extent to which the COVID-19 pandemic will continue to impact our business, our clinical development and regulatory efforts will depend on future developments that are highly uncertain and cannot be predicted with confidence, such as the duration of the outbreak, travel restrictions, quarantines, lock-downs, social distancing requirements, business closures in the United States and other countries, and the effectiveness of actions taken in the United States and other countries to contain and treat the disease. Accordingly, we do not yet know the full extent of potential delays or impacts on our business, our clinical and regulatory activities, healthcare systems or the global economy as a whole.

Our future success depends on our ability to retain executives and to attract, retain and motivate key personnel in a competitive environment for skilled biotechnology personnel.

Because of the specialized scientific and managerial nature of our business, we rely heavily on our ability to attract and retain qualified scientific, technical and managerial personnel. We are highly dependent upon members of our current management team, including Paula Ragan, Ph.D., our Chief Executive Officer, the loss of whose services may adversely impact the achievement of our objectives. Although we have an employment agreement with Dr. Ragan, this agreement is at-will and does not prevent her from terminating her employment with us at any time by providing the requisite advance notice.

Our success will depend on our ability to retain our management team and other key employees, and to attract and retain qualified personnel in the future. The loss of the services of certain members of our senior management or key employees could prevent or delay the implementation and completion of our strategic objectives, or divert management’s attention to seeking qualified replacements The competition for qualified personnel in the pharmaceutical field is intense and we cannot guarantee that we will be able to retain our current personnel or attract and retain new qualified personnel necessary for the development of our business or to recruit suitable replacement personnel.

We will need to grow the size of our organization, and we may experience difficulties in managing this growth.

As of March 31, 2020, we had 63 full-time employees. As our development and commercialization plans and strategies develop, or as a result of any future acquisitions, we will need additional managerial, operational, development, sales, marketing, financial and other resources. Our management, personnel and systems currently in place will not be adequate to support this future growth. Future growth would impose significant added responsibilities on our employees, including:
managing our clinical trials effectively;
identifying, recruiting, maintaining, motivating and integrating additional employees;
managing our internal development efforts effectively while complying with our contractual obligations to licensors, contractors and other third parties;
improving our managerial, development, operational and finance systems; and
expanding our facilities.

As our operations expand, we will need to manage additional relationships with various strategic collaborators, suppliers and other third parties. Our future financial performance and our ability to commercialize our product candidates and to compete effectively will depend, in part, on our ability to manage any future growth effectively. To that end, we must be able to manage our development efforts and clinical trials effectively and hire, train and integrate additional management, administrative, research and development, and sales and marketing personnel. We may not be able to accomplish these tasks, and our failure to accomplish any of them could prevent us from successfully growing the company.

The pharmaceutical industry is highly competitive and is subject to rapid and significant technological change, which could render our technologies and products obsolete or uncompetitive.

The pharmaceutical industry is highly competitive and is subject to rapid and significant technological change, which could render certain of our products obsolete or uncompetitive. This is particularly true in the development of therapeutics for oncology indications where new products and combinations of products are rapidly being developed that change the treatment paradigm for patients. There is no assurance that our product candidates will be the best, have the best safety profile, be the first to market, or be the most economical to make or use. The introduction of competitive therapies as alternatives to our product candidates could dramatically reduce the value of those development projects or chances of successfully commercializing those product candidates, which could have a material adverse effect on our long-term financial success.
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We will compete with companies in the United States and internationally, including major pharmaceutical and chemical companies, specialized CROs, research and development firms, universities and other research institutions. Many of our competitors have greater financial resources and selling and marketing capabilities, greater experience in clinical testing and human clinical trials of pharmaceutical products and greater experience in obtaining FDA and other regulatory approvals than we do. In addition, some of our competitors may have lower development and manufacturing costs.

We rely significantly on information technology and any failure, inadequacy, interruption or security lapse of that technology or loss of data, including any cyber security incidents, could compromise sensitive information related to our business, prevent us from accessing critical information or expose us to liability which could harm our ability to operate our business effectively and adversely affect our business and reputation.

In the ordinary course of our business, we, our contract research organizations and other third parties on which we rely collect and store sensitive data, including legally protected patient health information, personally identifiable information about our employees, intellectual property, and proprietary business information. We manage and maintain our applications and data utilizing on-site systems. These applications and data encompass a wide variety of business-critical information including research and development information and business and financial information.

The secure processing, storage, maintenance and transmission of this critical information is vital to our operations and business strategy. Because of the work-from-home policies we implemented due to COVID-19, information that is normally protected, including company confidential information, may be less secure. Additionally, despite the implementation of security measures, our internal computer systems and those of third parties with which we contract are vulnerable to damage from cyber-attacks, computer viruses, breaches, unauthorized access, interruptions due to employee error or malfeasance or other disruptions, or damage from natural disasters, terrorism, war and telecommunication and electrical failures. In addition, due to the COVID-19 pandemic, we have enabled substantially all of our employees to work remotely, which may make us more vulnerable to cyberattacks. Any such event could compromise our networks and the information stored there could be accessed by unauthorized parties, publicly disclosed, lost or stolen. We have measures in place that are designed to detect and respond to such security incidents and breaches of privacy and security mandates. Any such access, disclosure or other loss of information could result in legal claims or proceedings, liability under laws that protect the privacy of personal information, government enforcement actions and regulatory penalties. Unauthorized access, loss or dissemination could also disrupt our operations, including our ability to conduct research, development and commercialization activities, process and prepare company financial information, manage various general and administrative aspects of our business and damage our reputation, in addition to possibly requiring substantial expenditures of resources to remedy, any of which could adversely affect our business. The loss of clinical trial data could result in delays in our regulatory approval efforts and significantly increase our costs to recover or reproduce the data. In addition, there can be no assurance that we will promptly detect any such disruption or security breach, if at all. To the extent that any disruption or security breach were to result in a loss of, or damage to, our data or applications, or inappropriate disclosure of confidential or proprietary information, we could incur liability and our research, development and commercialization efforts could be delayed.

Business disruptions could seriously harm our future revenues and financial condition and increase our costs and expenses.

Our operations could be subject to earthquakes, power shortages, telecommunications failures, water shortages, floods, hurricanes, typhoons, fires, extreme weather conditions, medical epidemics (including but not limited to the COVID-19 pandemic) and other natural or man-made disasters or business interruptions, for which we are predominantly self-insured. The occurrence of any of these business disruptions could seriously harm our operations and financial condition and increase our costs and expenses. We rely on a single third-party manufacturer to provide the active pharmaceutical ingredient for mavorixafor and a single third-party manufacturer to provide fill and finish services for the final drug product formulation of mavorixafor for use in clinical trials. Our ability to obtain clinical supplies of product candidates could be disrupted if the operations of these suppliers are affected by a man-made or natural disaster or other business interruption.

Our ability to use our net operating losses to offset future taxable income may be subject to certain limitations.

Our net operating loss, or NOL, carryforwards could expire unused and be unavailable to offset future tax liabilities because of their limited duration or because of restrictions under U.S. tax law. As of December 31, 2019, we had U.S. federal and state NOLs of $181.8 million and $177.4 million, respectively. Our NOLs generated in tax years ending on or prior to December 31, 2017 are only permitted to be carried forward for 20 years under applicable U.S. tax law. Under the Tax Act, as modified by the CARES Act, our federal NOLs generated in tax years ending after December 31, 2017 may be carried forward indefinitely, but the deductibility of federal NOLs, particularly for tax years beginning after December 31, 2020, may be limited. It is uncertain if and to what extent various states will conform to the Tax Act and the CARES Act.
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Section 382 of the Internal Revenue Code of 1986, as amended, or Section 382, contains rules that limit the ability of a company that undergoes an ownership change to utilize its net operating losses, or NOLs, and tax credits existing as of the date of such ownership change. Under the rules, such an ownership change is generally any change in ownership of more than 50% of a company’s stock within a rolling three-year period. The rules generally operate by focusing on changes in ownership among stockholders considered by the rules as owning, directly or indirectly, 5% or more of the stock of a company and any change in ownership arising from new issuances of stock by the company. We may have experienced multiple ownership changes since our inception and have not conducted a study to assess whether an ownership change has occurred or whether there have been multiple ownership changes since inception. Future ownership changes as defined by Section 382 may further limit the amount of NOL carryforwards that could be utilized annually to offset future taxable income.

Our term loan contains restrictions that limit our flexibility in operating our business.
In October 2018, we entered into a loan and security agreement, as most recently amended in March 2020, with Hercules, secured by a lien on substantially all of our assets, including intellectual property. This loan contains various covenants that limit our ability to engage in specified types of transactions. These covenants limit our ability to, among other things:
sell, transfer, lease or dispose of certain assets;
incur indebtedness;
encumber or permit liens on certain assets;
make certain investments;
make certain restricted payments, including paying dividends on, or repurchasing or making distributions with respect to, our common stock; and
enter into certain transactions with affiliates.

The covenants also include, to the extent borrowings on the loan and security agreement exceed $25.0 million, maintaining a minimum liquidity amount of the lesser of (i) $30.0 million or (ii) 6 multiplied by a metric based on prior months’ cash expenditures; provided, however, that from and after the Company’s achievement of certain performance milestones, the required level shall be reduced to the greater of (x) $20.0 million, or (y) 3 multiplied by the current metric based on prior months' cash expenditures. A breach of any of the covenants under the loan and security agreement could result in a default under the loan. Upon the occurrence of an event of default under the loan, the lenders could elect to declare all amounts outstanding, if any, to be immediately due and payable and terminate all commitments to extend further credit. If there are any amounts outstanding that we are unable to repay, the lenders could proceed against the collateral granted to them to secure such indebtedness.

Changes in U.S. tax law may materially adversely affect our financial condition, results of operations and cash flows.
On March 27, 2020, the CARES Act was signed into law. The CARES Act is an approximately $2 trillion emergency economic stimulus package that includes numerous U.S. federal income tax provisions, including the modification of: (i) net operating loss (NOL) rules (as discussed above), (ii) the alternative minimum tax refund and (iii) business interest deduction limitations under Section 163(j) of the Internal Revenue Code of 1986, as amended (the Code).

The Tax Act also significantly changed the U.S. federal income taxation of U.S. corporations. However, there remain uncertainties and ambiguities in the application of certain provisions of the Tax Act and, as a result, we made certain judgments and assumptions in the interpretation thereof. The U.S. Treasury Department and the Internal Revenue Service, or the IRS, may issue further guidance on how the provisions of the Tax Act will be applied or otherwise administered that differs from our current interpretation. In addition, the Tax Act could be subject to potential amendments and technical corrections, any of which could materially lessen or increase certain adverse impacts of the legislation on us. We continue to work with our tax advisors and auditors to determine the full impact the Tax Act and the CARES Act will have on us. We urge our investors to consult with their legal and tax advisors with respect to both the Tax Act and the CARES Act and the potential tax consequences of investing in our common stock.

Inadequate funding for the FDA, the SEC and other government agencies could hinder their ability to hire and retain key leadership and other personnel, prevent new products and services from being developed or commercialized in a timely manner or otherwise prevent those agencies from performing normal business functions on which the operation of our business may rely, which could negatively impact our business.

The ability of the FDA to review and approve new products can be affected by a variety of factors, including government budget and funding levels, the ability to hire and retain key personnel and accept the payment of user fees, and statutory, regulatory and policy changes. Average review times at the agency have fluctuated in recent years as a result. In addition,
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government funding of the SEC and other government agencies on which our operations may rely, including those that fund research and development activities is subject to the political process, which is inherently fluid and unpredictable.

Disruptions at the FDA and other agencies may also slow the time necessary for new drugs to be reviewed and/or approved by necessary government agencies, which would adversely affect our business. For example, over the last several years the U.S. government has shut down several times and certain regulatory agencies, such as the FDA and the SEC, have had to furlough critical FDA, SEC and other government employees and stop critical activities. If a prolonged government shutdown occurs, it could significantly impact the ability of the FDA to timely review and process our regulatory submissions, which could have a material adverse effect on our business. Further, in our operations as a public company, future government shutdowns could impact our ability to access the public markets and obtain necessary capital in order to properly capitalize and continue our operations.

Risks Related to Ownership of Our Common Stock

Our stock price is expected to continue to be volatile.

The market price of our common stock could continue to be subject to significant fluctuations. Market prices for securities of early-stage pharmaceutical, biotechnology and other life sciences companies have historically been particularly volatile. Some of the factors that may cause the market price of our common stock to fluctuate include:
our ability or the ability of our collaborators to develop product candidates and conduct clinical trials that demonstrate such product candidates are safe and effective;
our ability or the ability of our collaborators to obtain regulatory approvals for product candidates, and delays or failures to obtain such approvals;
failure of any our product candidates to demonstrate safety and efficacy, receive regulatory approval and achieve commercial success;
failure to maintain our existing third-party license, manufacturing and supply agreements;
failure by us or our licensors to prosecute, maintain or enforce our intellectual property rights;
changes in laws or regulations applicable to our current or future product candidates;
any inability to obtain adequate supply of product candidates or the inability to do so at acceptable prices;
adverse decisions by regulatory authorities;
introduction of new or competing products by our competitors;
failure to meet or exceed financial and development projections that we may provide to the public;
the perception of the pharmaceutical industry by the public, legislatures, regulators and the investment community;
announcements of significant acquisitions, strategic collaborations, joint ventures or capital commitments by us or our competitors;
disputes or other developments relating to proprietary rights, including patents, litigation matters and our ability to obtain intellectual property protection for our technologies;
additions or departures of key personnel;
significant lawsuits, including intellectual property or stockholder litigation;
announcements by us of material developments in our business, financial condition and/or operations;
if securities or industry analysts do not publish research or reports about us, or if they issue an adverse or misleading opinions regarding our business and stock;
changes in the market valuations of similar companies;
general market or macroeconomic conditions;
sales of our common stock or our stockholders in the future;
trading volume of our common stock;
adverse publicity relating to our markets generally, including with respect to other products and potential products in such markets;
changes in the structure of health care payment systems;
period-to-period fluctuations in our financial results; and
general economic, industry, political and market conditions, including, but not limited to the ongoing impact of the COVID-19 pandemic.

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In addition, companies trading in the stock market in general, and Nasdaq in particular, have experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of these companies, including very recently in connection with the ongoing COVID-19 pandemic, which has resulted in decreased stock prices for many companies notwithstanding the lack of a fundamental change in their underlying business models or prospects. Broad market and industry factors, including potentially worsening economic conditions and other adverse effects or developments relating to the ongoing COVID-19 pandemic, may negatively affect the market price of our common stock, regardless of our actual operating performance. In the past, following periods of volatility in the market price of a company’s securities, stockholders have often instituted class action securities litigation against those companies. Such litigation, if instituted, could result in substantial costs and diversion of management attention and resources, which could significantly harm our business, financial condition, results of operations and reputation.

We will be required to raise additional funds to finance our operations; we may not be able to do so when necessary, and/or on acceptable terms.

Our ongoing capital requirements will depend on numerous factors related to the development of our product candidates and the sale of products obtaining regulatory approval, including: the progress and cost of research and development programs and clinical trials; the progress and cost of research and development programs of collaborators; the time and costs expended and required to obtain any necessary or desired regulatory approvals; the costs of ongoing compliance with the FDA and other domestic and foreign regulatory agency requirements; the resources devoted to manufacturing expenditures; the ability to enter into licensing arrangements; the cost of commercialization activities and arrangements, if any, undertaken by us; and, if and when approved, the demand for our products.

We anticipate that we will need to raise additional funds through public or private financings, strategic collaborations or other arrangements. The spread of COVID-19, which has caused a broad impact globally, may materially affect our ability to access the capital markets when and if needed. While the long-term economic impact of the COVID-19 pandemic is difficult to assess or predict, it has already significantly disrupted global financial markets, reducing our ability to access capital, which could in the future negatively affect our liquidity. Additional equity financing would be dilutive to our existing stockholders, and debt financing, if available, may involve restrictive covenants. If we raise funds through collaborative or licensing arrangements, we may be required to relinquish, on terms that are not favorable to us, rights to some of our technologies or product candidates that we would otherwise seek to develop or commercialize. Our failure to raise capital when needed could materially harm our business, financial condition and results of operations.

Raising additional funds by issuing securities may cause dilution to existing stockholders and raising funds through lending and licensing arrangements may restrict our operations or require us to relinquish proprietary rights.

Until such time, if ever, as we can generate substantial product revenues, we expect to finance our cash needs through a combination of equity offerings, debt financings, grants and license and development agreements in connection with any collaborations. We do not have any committed external source of funds. To the extent that we raise additional capital by issuing equity securities, our existing stockholders’ ownership will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect your rights as a common stockholder. Debt financing and preferred equity financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends.

If we raise additional funds through collaborations, strategic alliances or marketing, distribution or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs or product candidates or grant licenses on terms that may not be favorable to us. Any debt financing that we enter into may involve covenants that restrict our operations. These restrictive covenants may include limitations on additional borrowing and specific restrictions on the use of our assets as well as prohibitions on our ability to create liens, pay dividends, redeem our stock or make investments. If we are unable to raise additional funds through equity or debt financings when needed, we may be required to delay, limit, reduce or terminate our product development or future commercialization efforts or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves.

We are an “emerging growth company,” and a "smaller reporting company" and as a result of the reduced disclosure requirements applicable to emerging growth companies and smaller reporting companies, our common stock may be less attractive to investors.

We are an “emerging growth company,” or EGC, as defined in the Jumpstart Our Business Startups Act of 2012, or the JOBS Act, and may remain an emerging growth company until December 31, 2022. For so long as we remain an EGC, we are permitted and intend to rely on exemptions from certain disclosure requirements that are applicable to other public companies that are not emerging growth companies. These exemptions include:
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not being required to comply with the auditor attestation requirements in the assessment of our internal control over financial reporting;
not being required to comply with any requirement that may be adopted by the Public Company Accounting Oversight Board regarding a supplement to the auditor’s report providing additional information about the audit and the financial statements;
reduced disclosure obligations regarding executive compensation; and
exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and shareholder approval of any golden parachute payments not previously approved.
Investors may find our common stock less attractive as a result of our reliance on these exemptions. If some investors find our common stock less attractive as a result, there may be a less active trading market for our common stock and our stock price may be more volatile.
Even following the termination of our status as an emerging growth company, we will be able to take advantage of the reduced disclosure requirements applicable to smaller reporting companies (as that term is defined in Rule 12b-2 of the Exchange Act) and, in particular, reduced disclosure obligations regarding executive compensation in our periodic reports and proxy statements. To the extent that we are no longer eligible to use exemptions from various reporting requirements, we may be unable to realize our anticipated cost savings from these exemptions, which could have a material adverse impact on our operating results.

If securities analysts do not publish research or reports about our business or if they publish negative evaluations of our stock, the price of our stock could decline.

The trading market for our common stock will be influenced, in part, on the research and reports that industry or financial analysts publish about us or our business. Equity research analysts may elect not to provide research coverage of our common stock, and such lack of research coverage may adversely affect the market price of our common stock. In the event we do have equity research analyst coverage, we will not have any control over the analysts or the content and opinions included in their reports. The price of our common stock could decline if one or more equity research analysts downgrade our stock or issue other unfavorable commentary or research. If one or more equity research analysts ceases coverage of us or fails to publish reports on us regularly, demand for our common stock could decrease, which in turn could cause our stock price or trading volume to decline.

We do not anticipate that we will pay any cash dividends in the foreseeable future.

The current expectation is that we will retain our future earnings to fund the development and growth of our business. In addition, the terms of our debt agreements may preclude us from paying dividends. As a result, capital appreciation, if any, of our common stock will be your sole source of gain, if any, for the foreseeable future. We are prohibited from declaring or paying any cash dividends under our existing loan and security agreement with Hercules.

Sales of a substantial number of shares of our common stock in the public market could cause our stock price to decline.

Sales of a substantial number of shares of our common stock in the public market, or the perception that these sales might occur, could depress the market price of our common stock and could impair our ability to raise capital through the sale of additional equity securities.We are unable to predict the effect that sales, particularly sales by our directors, executive officers, and significant stockholders, may have on the prevailing market price of our common stock.

In addition, we have filed registration statements on Form S-8 registering the issuance of shares of common stock subject to options or other equity awards issued or reserved for future issuance under our equity incentive plans. Shares registered under these registration statements are available for sale in the public market subject to vesting arrangements and exercise of options, as well as Rule 144 in the case of our affiliates.

Additionally, a holder of our common stock has rights, subject to some conditions, to require us to file one or more registration statements covering their shares. These registration rights will terminate upon the earlier to occur of November 17, 2020 or the date on which the holder has sold all shares subject to such registration rights. If we were to register the resale of these shares, they could be freely sold in the public market. If these additional shares are sold, or if it is perceived that they will be sold, in the public market, the trading price of our common stock could decline.

If we fail to maintain an effective system of internal control over financial reporting, we may not be able to accurately report our financial results or prevent fraud. As a result, stockholders could lose confidence in our financial and other public reporting, which would harm our business and the trading price of our common stock.
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We are subject to the reporting requirements of the Exchange Act, the Sarbanes-Oxley Act of 2002 and the rules and regulations of The Nasdaq Global Market. Pursuant to Section 404 of the Sarbanes-Oxley Act of 2002, or Section 404, we are required to perform system and process evaluation and testing of our internal control over financial reporting to allow our management to report on the effectiveness of our internal control over financial reporting in this Form 10-K.

Effective internal control over financial reporting is necessary for us to provide reliable financial reports and, together with adequate disclosure controls and procedures, is designed to prevent fraud. Any failure to implement required new or improved controls, or difficulties encountered in their implementation, could cause us to fail to meet our reporting obligations. In addition, any testing by us, as and when required, conducted in connection with Section 404 of the Sarbanes-Oxley Act, or Section 404, or any subsequent testing by our independent registered public accounting firm, as and when required, may reveal deficiencies in our internal control over financial reporting that are deemed to be significant deficiencies or material weaknesses or that may require prospective or retroactive changes to our financial statements or identify other areas for further attention or improvement. Inferior internal controls could also cause investors to lose confidence in our reported financial information, which could have a negative effect on the trading price of our common stock.

Pursuant to Section 404, we are required to furnish a report by our management on our internal control over financial reporting beginning with our Annual Report on Form10-K for the year ended December 31, 2018 filed2019. However, while we remain an EGC, we will not be required to include an attestation report on internal control over financial reporting issued by our independent registered public accounting firm. When we cease to be an emerging growth company, we will be required to incur substantial additional professional fees and internal costs to expand our accounting and finance functions in order to include such attestation report.

We may in the future discover weaknesses in our system of internal financial and accounting controls and procedures that could result in a material misstatement of our financial statements. Our internal control over financial reporting will not prevent or detect all error and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the control system’s objectives will be met. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that misstatements due to error or fraud will not occur or that all control issues and instances of fraud will be detected. If we identify one or more material weaknesses in our internal controls, investors could lose confidence in the reliability of our financial statements, the market price of our stock could decline and we could be subject to sanctions or investigations by The Nasdaq Global Market, the SEC or other regulatory authorities.

We may become involved in securities class action litigation or shareholder derivative litigation that could divert management’s attention and harm our business and insurance coverage may not be sufficient to cover all costs and damages.

In the past, securities class action or shareholder derivative litigation has often followed certain significant business transactions, such as the sale of a business division or announcement of a merger. This risk is especially relevant for us because biopharmaceutical companies have experienced significant stock price volatility in recent years. We may become involved in this type of litigation in the future, including litigation, if any, that may result in connection with the SEC on March 11, 2019, as updated by the risk factors describedMerger. Litigation often is expensive and diverts management’s attention and resources, which could adversely affect our business.

Provisions in our Current Report on Form8-K, filed withcorporate charter documents and under Delaware law could make an acquisition of the SEC on April 11, 2019.

Item 2.

UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Unregistered Sales of Equity Securities

PursuantCompany, which may be beneficial to our loanstockholders, more difficult and security agreement, dated asmay prevent attempts by our stockholders to replace or remove our current management.


Provisions in our corporate charter and by-laws may discourage, delay or prevent a merger, acquisition or other change in control of October 19, 2018, with Hercules Capital, Inc., or Hercules, we issuedthe Company that stockholders may consider favorable, including transactions in which you might otherwise receive a warrantpremium for your shares. These provisions also could limit the price that investors might be willing to purchase 5,000pay in the future for shares of our common stock, to Hercules having an exercisethereby depressing the market price of $19.80 per share, subjectour common stock. In addition, because our board of directors is responsible for appointing the members of our management team, these provisions may frustrate or prevent any attempts by our stockholders to adjustment asreplace or remove our current management by making it more difficult for stockholders to replace members of our board of directors. Among other things, these provisions:
establish a resultclassified board of directors such that not all members of the board are elected at one time;
allow the authorized number of our directors to be changed only by resolution of the board of directors;
limit the manner in which stockholders can remove directors from the board;
establish advance notice requirements for stockholder proposals that can be acted on at stockholder meetings and nominations to the board of directors;
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require that stockholder actions must be effected at a duly called stockholder meeting and prohibit actions by our stockholders by written consent;
limit who may call stockholder meetings;
authorize the board of directors to issue preferred stock without stockholder approval, which could be used to institute a shareholder rights plan, or so-called “poison pill,” that would work to dilute the stock ownership of a potential hostile acquirer, effectively preventing acquisitions that have not been approved by the board of directors; and
require the approval of the holders of at least 75% of the votes that all our stockholders would be entitled to cast to amend or repeal certain provisions of our charter or by-laws.
Moreover, because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware General Corporation Law, which prohibits a person who owns in excess of 15% of our outstanding voting stock from merging or combining with the Company for a period of three years after the date of the transaction in which the person acquired in excess of 15% of our outstanding voting stock, unless the merger or combination is approved in a prescribed manner.

Our certificate of incorporation provides that the Court of Chancery of the State of Delaware will be the exclusive forum for substantially all disputes between the Company and our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with the Company or our directors, officers, employees or stockholders.

Our certificate of incorporation provides that the Court of Chancery of the State of Delaware is the exclusive forum for any stock splits, stock dividendsderivative action or similar transactions. These warrants were issued in relianceproceeding brought on the exemption from registration provided under Section 4(a)(2)Company’s behalf, any action asserting a breach of fiduciary duty owed by our directors, officers, other employees or stockholders to the Securities Act.

Issuer Purchases of Equity Securities

We did not repurchaseCompany or our stockholders, any of our equity securities duringaction asserting a claim against the quarter ended March 31, 2019.

Use of Proceeds from Registered Securities

On November 20, 2017, Arsanis closed its initial public offering, in which Arsanis issued and sold 666,667 shares of common stock at a public offering price of $60.00 per share, and issued an additional 100,000 shares of common stock at a price of $60.00 per shareCompany arising pursuant to the exerciseDelaware General Corporation Law or as to which the Delaware General Corporation Law confers jurisdiction on the Court of Chancery of the underwriters’ over-allotment option. The aggregate gross proceeds to Arsanis from the initial public offering, inclusiveState of the over-allotment exercise, were $46.0 million. All of the shares of common stock issued and sold in the initial public offering were registered under the Securities Act of 1933, as amended,Delaware, or any action asserting a claim arising pursuant to a registration statement on Form S-1 (Registration No. 333-221050), which was declared effectiveour certificate of incorporation or by-laws or governed by the SEC on November 15, 2017.

The aggregate net proceedsinternal affairs doctrine. This provision may limit a stockholder’s ability to Arsanis from the public offering, inclusive of the over-allotment exercise, were approximately $39.5 million, after deducting underwriting discounts and commissions and offering expenses payable by Arsanis of approximately $6.5 million. No offering expenses were paid directly or indirectly to any of Arsanis’s directors or officers (or their associates) or persons owning 10% or more of any class of our equity securities or to any other affiliates.

As of March 31, 2019, we have used all of the net proceeds from the initial public offering to advance product candidates through clinical trial programs andbring a claim in a judicial forum that it finds favorable for working capital and general corporate purposes. There have been no material changes in the planned use of proceeds from the initial public offering as described in Arsanis’s final prospectus fileddisputes with the SEC on November 17, 2017 pursuantCompany or our directors, officers, employees or stockholders, which may discourage such lawsuits against the Company and our directors, officers, employees or stockholders.


Alternatively, if a court were to Rule 424(b).

find this provision in our certificate of incorporation to be inapplicable or unenforceable in an action, we may incur additional costs associated with resolving such action in other jurisdictions, which could adversely affect our business and financial condition.

Item 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
None.
Item 3. DEFAULTS UPON SENIOR SECURITIES
None.
Item 4. MINE SAFETY DISCLOSURES
Not applicable.
Item 5. OTHER INFORMATION
None.
Item 6. EXHIBITS
Exhibit
No.
Exhibit Description 
FormExhibit No.Filing DateFile No.
3.18-K3.111/20/2017001-38295
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3.28-K3.13/13/2019001-38295
3.38-K3.23/13/2019001-38295
3.48-K3.211/20/2017001-38295
10.1+*
10.2+10-K10.1903/12/2020001-38295
10.3+10-K10.2103/12/2020001-38295
10.4+10-K10.2303/12/2020001-38295
10.5+8-K10.103/20/2020001-38295
10.68-K10.103/17/2020001-38295
10.710-K10.3703/12/2020001-38295
31.1*
31.2*
32.1**
101.INS*Inline XBRL Instance Document
101.SCH*Inline XBRL Taxonomy Extension Schema Document
101.CAL*Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF*Inline XBRL Taxonomy Extension Definition Linkbase Document
74


Item 3.

DEFAULTS UPON SENIOR SECURITIES

Not applicable.

Item 4.

MINE SAFETY DISCLOSURES

Not applicable.

Item 5.

OTHER INFORMATION

Not applicable.

X4 PHARMACEUTICALS, INC.

Item 6.

EXHIBITS

Exhibit

    No.    

101.LAB*

Exhibit Description

Inline XBRL Taxonomy Extension Label Linkbase Document
Filed
  Herewith  
Incorporated by
Reference herein
from Form or
Schedule
Filing DateSEC
File/Reg.
Number
    2.1Second Amendment to Agreement and Plan of Merger, dated March  8, 2019, by and among the Company, Artemis AC Corp. and X4 Therapeutics, Inc. (formerly X4 Pharmaceutical, Inc.).101.PRE*XBRL Taxonomy Extension Presentation Linkbase Document8-K

(Exhibit 2.1)

3/8/2019001-38295
* Filed herewith
** The certification attached as Exhibit 32.1 accompanying this Quarterly Report on Form 10-Q is not deemed filed with the Securities and Exchange Commission and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date of this Quarterly Report on Form 10-Q, irrespective of any general incorporation language contained in such filing.
+ Indicates management contract or compensatory plan
    3.1Restated Certificate of Incorporation of the Company.8-K

(Exhibit 3.1)

11/20/2017001-38295
    3.2Certificate of Amendment (Reverse Stock Split) to the Restated Certificate of Incorporation of the Company.8-K

(Exhibit 3.1)

3/13/2019001-38295
    3.3Certificate of Amendment (Name Change) to the Restated Certificate of Incorporation of the Company.8-K

(Exhibit 3.2)

3/13/2019001-38295
    4.1Form of Common Stock Certificate.8-K

(Exhibit 4.1)

3/13/2019001-38295
    4.2Form of Warrant to Purchase Series A Preferred Stock of X4  Therapeutics, Inc. (formerly X4 Pharmaceuticals, Inc.) issued to Silicon Valley Bank and Life Science Loans, LLC.8-K

(Exhibit 4.2)

3/13/2019001-38295
    4.3Form of Warrant to Purchase Series A Preferred Stock of X4  Therapeutics, Inc. (formerly X4 Pharmaceuticals, Inc.) issued to Maxim Partners LLC.8-K

(Exhibit 4.3)

3/13/2019001-38295
    4.4Form of Warrant to Purchase Series B Preferred Stock of X4 Therapeutics, Inc. (formerly X4 Pharmaceuticals, Inc.).8-K

(Exhibit 4.4)

3/13/2019001-38295
    4.5Amended and Restated Warrant Agreement, dated as of March 29, 2019, by and between the Company and Hercules Capital, Inc.X
    4.6Warrant Agreement, dated as of March 18, 2019, by and between the Company and Hercules Capital, Inc.X
  10.1.1*2015 Employee, Director and Consultant Equity Incentive Plan, as amended.8-K

(Exhibit 10.1.1)

3/13/2019001-38295
  10.1.2*Form of Stock Option Agreement under the 2015 Employee, Director and Consultant Equity Incentive Plan, as amended.8-K/A

(Exhibit 10.1.2)

4/3/2019001-38295
  10.2*Director Compensation Policy.8-K

(Exhibit 10.2)

3/13/2019001-38295
  10.3*Amended and Restated Executive Employment Agreement, dated as of March 13, 2019, by and between the Company and Paula Ragan, Ph.D.8-K

(Exhibit 10.3)

3/13/2019001-38295
  10.4*Amended and Restated Executive Employment Agreement, dated as of March 13, 2019, by and between the Company and Adam S. Mostafa.8-K

(Exhibit 10.4)

3/13/2019001-38295
  10.5±License Agreement, dated as of July  10, 2014, by and between X4 Therapeutics, Inc. (formerly X4 Pharmaceuticals, LLC) and Genzyme Corp., a Sanofi company.8-K/A

(Exhibit 10.5)

5/13/2019001-38295
  10.6±Amendment No. 1 to License Agreement, dated as of October 23, 2014, by and between X4 Therapeutics, Inc. (formerly X4  Pharmaceuticals, Inc.) and Genzyme Corporation, a Sanofi company.8-K/A

(Exhibit 10.6)

5/13/2019001-38295

X4 PHARMACEUTICALS, INC.

Exhibit

    No.    

Exhibit Description

Filed
  Herewith  
Incorporated by
Reference herein
from Form or
Schedule
Filing DateSEC
File/Reg.
Number
  10.7±License Agreement, dated as of December  13, 2016, by and between X4 Therapeutics, Inc. (formerly X4 Pharmaceuticals, Inc.) and Georgetown University.8-K/A

(Exhibit 10.7)

5/13/2019001-38295
  10.8±Exclusive License Agreement, dated as of December 23, 2016, by and between X4  Therapeutics, Inc. (formerly X4 Pharmaceuticals, Inc.) and Beth Israel Deaconess Medical Center.8-K/A

(Exhibit 10.8)

5/13/2019001-38295
  10.9Loan and Security Agreement, dated as of October 19, 2018, by and between X4  Therapeutics, Inc. (formerly X4 Pharmaceuticals, Inc.) and Hercules Capital, Inc.8-K

(Exhibit 10.9)

3/13/2019001-38295
  10.10Amendment No. 1 to Loan and Security Agreement, dated as of December  11, 2018, by and between X4 Therapeutics, Inc. (formerly X4 Pharmaceuticals, Inc.) and Hercules Capital, Inc.8-K

(Exhibit 10.10)

3/13/2019001-38295
  10.11Lease, dated as of January  20, 2017, by and between X4 Therapeutics, Inc. (formerly X4 Pharmaceuticals, Inc.) and Brickman 955 Massachusetts LLC.8-K

(Exhibit 10.11)

3/13/2019001-38295
  10.12Settlement Agreement, dated as of March  8, 2019, by and among X4 Pharmaceuticals, Inc. (formerly Arsanis, Inc.), Artemis AC Corp., X4 Therapeutics, Inc. (formerly X4 Pharmaceuticals, Inc.), Arsanis Biosciences GmbH and Österreichische Forschungsförderungsgesellschaft GmbH.8-K

(Exhibit 10.1)

4/11/2019001-38295
10.13Lease Termination Agreement, dated February 26, 2019, by and between Arsanis Biosciences GmbH and Wüstenrot Marxbox GmbH  & Co. OG (assuccessor-in-interest to Marxbox Bauprojekt GmbH & Co. OG), as amended (English translation).8-K

(Exhibit 10.1)

3/1/2019001-38295
  10.14*Form of Restricted Stock Agreement under the 2017 Equity Incentive Plan.X
  10.15*Form of Nonstatutory Stock Option Agreement (Director Grants) under the 2017 Equity Incentive Plan.X
  10.16*Form of Nonstatutory Stock Option Agreement under the 2017 Equity Incentive Plan.X
  10.17*Form of Incentive Stock Option Agreement under the 2017 Equity Incentive Plan.X
  31.1Certification of the Registrant’s Principal Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.X
  31.2Certification of the Registrant’s Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.X
  32.1Certification of Principal Executive Officer and Principal Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.X
101The following materials from the Registrant’s Quarterly Report onForm 10-Q for the quarter ended March 31, 2019, formatted in XBRL (eXtensible Business Reporting Language): (i) Condensed Consolidated Balance Sheets (unaudited) as of March 31, 2019 and December 31, 2018, (ii) Condensed Consolidated Statements of Operations (unaudited) for the Three Months Ended March 31, 2019 and 2018, (iii) Condensed Consolidated Statements of Comprehensive Loss (unaudited) for the Three Months Ended March 31, 2019 and 2018, (iv) Condensed Consolidated Statements of Convertible Preferred Stock, Redeemable Common Stock and Stockholders’ Equity (Deficit) (unaudited) for the Three Months Ended March 31, 2019 and 2018, and (v) Condensed Consolidated Statements of Cash Flows (unaudited) for the Three Months Ended March 31, 2019 and 2018.X

*

Management contract or compensatory plans or arrangements.

±

Certain confidential portions of this Exhibit were omitted by means of marking such portions with brackets (��[***]”) because the identified confidential portions (i) are not material and (ii) would be competitively harmful if publicly disclosed.

X4 PHARMACEUTICALS, INC.


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrantregistrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

X4 PHARMACEUTICALS, INC.
Date: May 15, 20197, 2020By:By:

/s/ Paula Ragan, Ph.D.

Paula Ragan, Ph.D.


President, Chief Executive Officer and Secretary


Date: May 15, 20197, 2020By:By:

/s/ Adam S. Mostafa

Adam S. Mostafa


Chief Financial Officer and Treasurer

57


75