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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)

x

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

For the quarterly period ended SeptemberJune 30,, 2022

2023

or

o

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: 001-36182

Xencor, Inc.

(Exact name of registrant as specified in its charter)

Delaware

20-1622502

20-1622502

(State or other jurisdiction of incorporation

or organization)

(I.R.S. Employer Identification No.)

111 West Lemon Avenue, Monrovia, 465 North Halstead Street, Suite 200, Pasadena, CA

91107

91016

(Address of principal executive offices)

(Zip Code)

(626)

(626) 305-5900

(Registrant’s telephone number, including area code)

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

Title of each class:

class

Trading Symbol(s)

Name of each exchange on which registered:

registered

Common Stock, par value $0.01 per share

XNCR

The Nasdaq Global Market

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 x No o

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-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 x No o

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

Large accelerated filer x Accelerated filer o Non-accelerated filer o Smaller reporting company o Emerging growth company o

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)13(a) of the Exchange Act. o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Securities Exchange Act of 1934)Act). Yes o No x

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date:

Class

Outstanding at November 3, 2022

July 28, 2023

Common stock, par value $0.01 per share

59,924,016

60,613,236



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Xencor, Inc.

Quarterly Report on Form 10-Q for the Quarter Ended SeptemberJune 30, 2022

2023

Table of Contents

Contents

Page

2623

3834

3934

4035

4035

4035

4135

36

Signatures

In this report, unless otherwise stated or the context otherwise indicates, references to “Xencor,” “the Company,” “we,” “us,” “our” and similar references refer to Xencor, Inc. The Xencor logo is a registered trademark of Xencor, Inc. This report also contains registered marks, trademarks, and trade names of other companies. All other trademarks, registered marks and trade names appearing in this report are the property of their respective holders.

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SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the Securities Act), and Section 21E of the Securities Exchange Act of 1934, as amended (the Exchange Act). You should not place undue reliance on these statements. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends affecting the financial condition of our business. Forward-looking statements should not be read as a guarantee of future performance or results and will not necessarily be accurate indications of the times at, or by, which such performance or results will be achieved. Forward-looking statements are based on information available at the time those statements are made and/or management’s good faith belief as of that time with respect to future events, and are subject to risks and uncertainties that could cause actual performance or results to differ materially from those expressed in or suggested by the forward-looking statements. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of various factors, including those set forth below under Part II, Item 1A, “Risk Factors” in this Quarterly Report. These statements, which represent our current expectations or beliefs concerning various future events, may contain words such as “may,” “will,” “expect,” “anticipate,” “intend,” “plan,” “believe,” “estimate,” the negative of such terms or other words indicating future results.

These forward-looking statements should, therefore, be considered in light of various important factors, including but not limited to, the following:

the lingering effects of the ongoing COVID-19 pandemic in the United States and abroad on our financial condition, results of operations, cash flows and performance;
our ability to execute on our plans to research, develop and commercialize our product candidates;
the success, cost, and timing of our ongoing and planned clinical trials;
the timing of and our ability to obtain and maintain regulatory approvals for our product candidates;
our ability to accurately estimate expenses, future revenue, capital requirements and needs for additional financing;
our ability to identify additional products or product candidates with significant commercial potential that are consistent with our business objectives;
our ability to receive research funding and achieve anticipated milestones under our collaborations;
our ability to attract collaborators with development, regulatory, and commercial expertise;
the ability of our publicly announced preliminary clinical trial data to support continued clinical development and regulatory approval for specific treatments;
our ability to protect our intellectual property position;
the rate and degree of market acceptance and clinical utility of our products;
costs of compliance and our failure to comply with new and existing governmental regulations;
the capabilities and strategy of our suppliers and vendors including key manufacturers of our clinical drug supplies;
significant competition in our industry;
costs of litigation and the failure to successfully defend lawsuits and other claims against us;

our ability to execute on our plans to research, develop and commercialize our product candidates;

the success, cost, and timing of our ongoing and planned clinical trials;

the timing of and our ability to obtain and maintain regulatory approvals for our product candidates;

our ability to accurately estimate expenses, future revenue, capital requirements and needs for additional financing;

our ability to identify additional products or product candidates with significant commercial potential that are consistent with our business objectives;

our ability to receive research funding and achieve anticipated milestones under our collaborations;

our ability to attract collaborators with development, regulatory, and commercial expertise;

the ability of our publicly announced preliminary clinical trial data to support continued clinical development and regulatory approval for specific treatments;

our ability to protect our intellectual property position;

the rate and degree of market acceptance and clinical utility of our products;

costs of compliance and our failure to comply with new and existing governmental regulations;

the capabilities and strategy of our suppliers and vendors including key manufacturers of our clinical drug supplies;

significant competition in our industry;

costs of litigation and the failure to successfully defend lawsuits and other claims against us;

the potential loss or retirement of key members of management;

our failure to successfully execute our growth strategy, including any delays in our planned future growth; and

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our failure to maintain effective internal controls.

our failure to successfully execute our growth strategy, including any delays in our planned future growth; and

our failure to maintain effective internal controls.
The factors, risks and uncertainties referred to above and others are more fully described under the heading “Risk Factors” in our Annual Report on Form 10-K for the fiscal year ended December 31, 20212022 and this Quarterly Report on Form 10-Q. Forward-looking statements should be regarded solely as our current plans, estimates and beliefs. We cannot guarantee future results, events, levels of activity, performance, or achievements. We do not undertake and specifically decline any obligation to update, republish or revise forward-looking statements to reflect future events or circumstances or to reflect the occurrences of unanticipated events.

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PART I — FINANCIAL INFORMATION

ITEM

Item 1. Financial Statements

Xencor, Inc.

Balance Sheets

Sheets

(in thousands, except share and per share data)

    

September 30, 

    

December 31, 

2022

2021

(unaudited)

Assets

Current assets

Cash and cash equivalents

$

52,654

$

143,480

Marketable debt securities

515,398

153,767

Marketable equity securities

32,184

36,860

Accounts receivable

44,876

 

66,384

Prepaid expenses

22,886

 

23,877

Total current assets

667,998

 

424,368

Property and equipment, net

 

51,040

 

28,240

Patents, licenses, and other intangible assets, net

18,094

 

16,493

Marketable debt securities - long term

41,720

300,465

Marketable equity securities - long term

31,124

31,262

Notes receivable - long term

5,000

5,000

Right of use (ROU) asset

19,680

31,730

Other assets

 

613

 

653

Total assets

$

835,269

$

838,211

Liabilities and stockholders’ equity

Current liabilities

Accounts payable

$

14,618

$

14,001

Accrued expenses

19,289

 

19,443

Lease liabilities

20,551

Deferred revenue

35,186

 

37,294

Income tax payable

 

388

 

Total current liabilities

90,032

 

70,738

Lease liabilities, net of current portion

22,539

33,969

Total liabilities

112,571

 

104,707

Commitments and contingencies

Stockholders’ equity

Preferred stock, $0.01 par value: 10,000,000 authorized shares; -0- issued and outstanding shares at September 30, 2022 and December 31, 2021

Common stock, $0.01 par value: 200,000,000 authorized shares at September 30, 2022 and December 31, 2021; 59,773,337 issued and outstanding at September 30, 2022 and 59,355,558 issued and outstanding at December 31, 2021

598

 

595

Additional paid-in capital

1,058,219

 

1,017,523

Accumulated other comprehensive loss

(9,875)

 

(1,510)

Accumulated deficit

 

(326,244)

 

(283,104)

Total stockholders’ equity

 

722,698

 

733,504

Total liabilities and stockholders’ equity

$

835,269

$

838,211

June 30,
2023
December 31,
2022
(unaudited)
Assets
Current assets
Cash and cash equivalents$34,710 $53,942 
Marketable debt securities476,667 526,689 
Marketable equity securities39,995 42,431 
Accounts receivable20,019 28,997 
Prepaid expenses and other current assets22,171 23,283 
Total current assets593,562 675,342 
Property and equipment, net67,997 59,183 
Patents, licenses, and other intangible assets, net18,708 18,500 
Marketable debt securities - long term— 3,826 
Marketable equity securities - long term64,210 54,383 
Right of use (ROU) asset33,046 34,419 
Other assets598 613 
Total assets$778,121 $846,266 
Liabilities and stockholders’ equity
Current liabilities
Accounts payable$14,097 $10,088 
Accrued expenses18,440 18,728 
Lease liabilities4,228 4,708 
Deferred revenue7,865 30,320 
Total current liabilities44,630 63,844 
Lease liabilities, net of current portion54,615 54,926 
Total liabilities99,245 118,770 
Commitments and contingencies
Stockholders’ equity
Preferred stock, $0.01 par value: 10,000,000 authorized shares; -0- issued and outstanding shares at June 30, 2023 and December 31, 2022— — 
Common stock, $0.01 par value: 200,000,000 authorized shares at June 30, 2023 and December 31, 2022; 60,600,060 issued and outstanding at June 30, 2023 and 59,997,713 issued and outstanding at December 31, 2022607 601 
Additional paid-in capital1,101,131 1,072,132 
Accumulated other comprehensive loss(1,860)(6,952)
Accumulated deficit(421,002)(338,285)
Total stockholders’ equity678,876 727,496 
Total liabilities and stockholders’ equity$778,121 $846,266 

See accompanying notes.

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Table of Contents

Xencor, Inc.

Statements of Comprehensive Income (Loss)

Loss

(unaudited)

(in thousands, except share and per share data)

Three Months Ended
June 30,
Six Months Ended
June 30,
2023202220232022
Revenue
Collaborations, milestones, and royalties$45,523 $30,175 $64,485 $115,670 
Operating expenses
Research and development60,060 47,084 124,439 94,839 
General and administrative11,460 11,091 25,408 22,364 
Total operating expenses71,520 58,175 149,847 117,203 
Loss from operations(25,997)(28,000)(85,362)(1,533)
Other income (expenses)
Interest income, net3,764 717 6,656 1,371 
Other expense, net(9)(147)(1,401)(244)
Gain (loss) on equity securities, net288 (6,545)(2,610)(9,974)
Total other income (expense), net4,043 (5,975)2,645 (8,847)
Net loss(21,954)(33,975)(82,717)(10,380)
Other comprehensive income (loss)
Net unrealized gain (loss) on marketable debt securities1,765 (1,823)5,093 (7,435)
Comprehensive loss$(20,189)$(35,798)$(77,624)$(17,815)
Basic and diluted net loss per common share$(0.37)$(0.57)$(1.38)$(0.17)
Basic and diluted weighted average common shares outstanding59,807,55859,567,13959,922,78459,487,924

Three Months Ended

 

Nine Months Ended

September 30, 

 

September 30, 

    

2022

    

2021

 

2022

    

2021

Revenue

Collaborations, milestones, and royalties

$

27,299

$

19,683

$

142,969

$

121,096

Operating expenses

Research and development

 

53,273

 

50,610

 

148,111

 

141,519

General and administrative

 

12,374

 

10,373

 

34,738

 

27,462

Total operating expenses

 

65,647

 

60,983

 

182,849

 

168,981

Loss from operations

 

(38,348)

 

(41,300)

 

(39,880)

 

(47,885)

Other income (expenses)

Interest income, net

 

1,379

 

196

 

2,749

 

558

Other expense, net

(1)

(593)

(244)

(610)

Gain (loss) on equity securities, net

5,299

1,506

(4,676)

57,507

Total other income (expense), net

 

6,677

 

1,109

 

(2,171)

 

57,455

Income (loss) before income tax expense

(31,671)

(40,191)

(42,051)

9,570

Income tax expense

1,088

1,088

Net income (loss)

(32,759)

(40,191)

(43,139)

9,570

Other comprehensive loss

Net unrealized loss on marketable debt securities

(931)

(59)

(8,366)

(149)

Comprehensive income (loss)

$

(33,690)

$

(40,250)

$

(51,505)

$

9,421

Basic net income (loss) per common share

$

(0.55)

$

(0.69)

$

(0.72)

$

0.16

Diluted net income (loss) per common share

$

(0.55)

$

(0.69)

$

(0.72)

$

0.16

Basic weighted average common shares outstanding

59,716,594

58,350,647

59,564,985

58,199,928

Diluted weighted average common shares outstanding

59,716,594

58,350,647

59,564,985

60,346,480

See accompanying notes.

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Xencor, Inc.

Statements of Stockholders’ Equity

(unaudited)

(in thousands, except share data)

Accumulated

Additional

Other

Total

Common Stock

Paid-in

Comprehensive

Accumulated

Stockholders’

Stockholders’ Equity

Shares

Amount

Capital

Income (Loss)

Deficit

Equity

Balance, December 31, 2021

59,355,558

$

595

$

1,017,523

$

(1,510)

$

(283,104)

$

733,504

Issuance of common stock upon exercise of stock awards

36,500

731

731

Issuance of restricted stock units

137,134

1

(1)

Comprehensive income (loss)

(5,611)

23,594

17,983

Stock-based compensation

10,805

10,805

Balance, March 31, 2022 (unaudited)

59,529,192

$

596

$

1,029,058

$

(7,121)

$

(259,510)

$

763,023

Issuance of common stock upon exercise of stock awards

70,874

1

1,315

1,316

Issuance of restricted stock units

15,774

Issuance of common stock under the Employee Stock Purchase Plan

68,580

1

1,196

1,197

Comprehensive loss

(1,823)

(33,975)

(35,798)

Stock-based compensation

12,603

12,603

Balance, June 30, 2022

59,684,420

598

1,044,172

(8,944)

(293,485)

742,341

Issuance of common stock upon exercise of stock awards

71,530

1,287

1,287

Issuance of restricted stock units

17,387

Comprehensive loss

(931)

(32,759)

(33,690)

Stock-based compensation

12,760

12,760

Balance, September 30, 2022 (unaudited)

59,773,337

$

598

$

1,058,219

$

(9,875)

$

(326,244)

$

722,698

Accumulated

Additional

Other

Total

Common Stock

Paid-in

Comprehensive

Accumulated

Stockholders’

Stockholders’ Equity

Shares

Amount

Capital

Income (Loss)

Deficit

Equity

Balance, December 31, 2020

57,873,444

$

580

$

937,525

$

74

$

(365,735)

$

572,444

Issuance of common stock upon exercise of stock awards

230,701

2

5,337

5,339

Issuance of restricted stock units

117,808

1

(1)

Comprehensive income (loss)

23

(2,487)

(2,464)

Stock-based compensation

8,293

8,293

Balance, March 31, 2021 (unaudited)

58,221,953

$

583

$

951,154

$

97

$

(368,222)

$

583,612

Issuance of common stock upon exercise of stock awards

52,790

1

902

903

Issuance of restricted stock units

10,190

Issuance of common stock under the Employee Stock Purchase Plan

30,552

937

937

Comprehensive income (loss)

(112)

52,248

52,136

Stock-based compensation

9,350

9,350

Balance, June 30, 2021

58,315,485

584

962,343

(15)

(315,974)

646,938

Issuance of common stock upon exercise of stock awards

132,709

1

3,228

3,229

Issuance of restricted stock units

6,617

Comprehensive loss

(59)

(40,191)

(40,250)

Stock-based compensation

8,943

8,943

Balance, September 30, 2021 (unaudited)

58,454,811

$

585

$

974,514

$

(74)

$

(356,165)

$

618,860

Common StockAdditional
Paid-in
Capital
Accumulated
Other
Comprehensive
Income (Loss)
Accumulated
Deficit
Total
Stockholders’
Equity
Stockholders’ EquitySharesAmount
Balance, December 31, 202259,997,713$601 $1,072,132 $(6,952)$(338,285)$727,496 
Issuance of common stock upon exercise of stock awards34,388— 924 — — 924 
Issuance of restricted stock units349,499(4)— — — 
Comprehensive income (loss)— — 3,327 (60,763)(57,436)
Stock-based compensation— 12,599 — — 12,599 
Balance, March 31, 2023 (unaudited)60,381,600$605 $1,085,651 $(3,625)$(399,048)$683,583 
Issuance of common stock upon exercise of stock awards145,003676 — — 677 
Issuance of restricted stock units18,148— — — — — 
Issuance of common stock under the Employee Stock Purchase Plan55,3091,241 — — 1,242 
Comprehensive income (loss)— — 1,765 (21,954)(20,189)
Stock-based compensation— 13,563 — — 13,563 
Balance, June 30, 2023 (unaudited)60,600,060$607 $1,101,131 $(1,860)$(421,002)$678,876 
Common StockAdditional
Paid-in
Capital
Accumulated
Other
Comprehensive
Income (Loss)
Accumulated
Deficit
Total
Stockholders’
Equity
Stockholders’ EquitySharesAmount
Balance, December 31, 202159,355,558$595 $1,017,523 $(1,510)$(283,104)$733,504 
Issuance of common stock upon exercise of stock awards36,500— 731 — — 731 
Issuance of restricted stock units137,134(1)— — — 
Comprehensive income (loss)— — (5,611)23,594 17,983 
Stock-based compensation— 10,805 — — 10,805 
Balance, March 31, 2022 (unaudited)59,529,192$596 $1,029,058 $(7,121)$(259,510)$763,023 
Issuance of common stock upon exercise of stock awards70,8741,315 — — 1,316 
Issuance of restricted stock units15,774— — — — — 
Issuance of common stock under the Employee Stock Purchase Plan68,5801,196 — — 1,197 
Comprehensive loss— — (1,823)(33,975)(35,798)
Stock-based compensation— 12,603 — — 12,603 
Balance, June 30, 2022 (unaudited)59,684,420$598 $1,044,172 $(8,944)$(293,485)$742,341 

See accompanying notes.

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Xencor, Inc.

Statements of Cash Flows

Flows

(unaudited)

(in thousands)

Six Months Ended
June 30,
20232022
Cash flows from operating activities
Net loss$(82,717)$(10,380)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization5,130 4,402 
(Accretion of discount) amortization of premium on marketable debt securities(4,345)968 
Stock-based compensation26,162 23,408 
Abandonment of capitalized intangible assets594 1,047 
Equity received in connection with license agreements(10,000)— 
Change in fair value of equity securities2,610 9,974 
Impairment on equity securities— 138 
Loss on disposal of assets1,379 125 
Changes in operating assets and liabilities:
Accounts receivable and contract asset8,978 12,100 
Interest receivable from marketable debt securities420 (448)
Prepaid expenses and other assets1,127 4,183 
Accounts payable4,009 1,746 
Accrued expenses(288)(3,095)
Lease liabilities and ROU assets582 7,911 
Deferred revenue(22,455)(1,995)
Net cash (used in) provided by operating activities(68,814)50,084 
Cash flows from investing activities
Purchase of marketable securities(276,715)(206,148)
Purchase of intangible assets(1,490)(3,197)
Purchase of property and equipment(14,636)(14,443)
Proceeds from maturities and sale of marketable securities339,580 76,390 
Net cash provided by (used in) investing activities46,739 (147,398)
Cash flows from financing activities
Proceeds from issuance of common stock upon exercise of stock awards1,601 2,047 
Proceeds from issuance of common stock under the Employee Stock Purchase Plan1,242 1,197 
Net cash provided by financing activities2,843 3,244 
Net decrease in cash and cash equivalents(19,232)(94,070)
Cash and cash equivalents, beginning of period
53,942 143,480 
Cash and cash equivalents, end of period
$34,710 $49,410 
Supplemental disclosure of cash flow information
Cash paid during the period for:
Interest$14 $
Supplemental disclosures of non-cash investing activities
Unrealized gain (loss) on marketable securities$5,093 $(7,435)

Nine Months Ended

September 30, 

    

2022

    

2021

Cash flows from operating activities

Net (loss) income

$

(43,139)

$

9,570

Adjustments to reconcile net (loss) income to net cash used in operating activities:

Depreciation and amortization

 

6,640

 

5,384

Amortization of premium on marketable securities

 

909

 

2,632

Stock-based compensation

 

36,168

 

26,586

Abandonment of capitalized intangible assets

 

1,331

 

727

Equity received in connection with sale of financial assets

(3,300)

Change in fair value of equity securities

4,676

(39,206)

Impairment on equity securities

138

563

Loss on disposal of assets

132

17

Changes in operating assets and liabilities:

Accounts receivable and contract asset

 

21,508

 

3,398

Interest receivable from marketable debt securities

(392)

182

Prepaid expenses and other assets

 

1,031

 

(10,599)

Accounts payable

 

617

 

177

Accrued expenses

 

(154)

 

4,505

Income taxes

388

Lease liabilities and ROU assets

21,171

386

Deferred revenue

 

(2,108)

 

(79,665)

Net cash provided by (used in) operating activities

 

48,916

 

(78,643)

Cash flows from investing activities

Purchase of marketable debt securities

 

(317,058)

 

(387,826)

Purchase of equity securities

(842)

Proceeds from sale of property and equipment

4

Purchase of intangible assets

 

(3,977)

 

(2,348)

Purchase of property and equipment

 

(28,528)

 

(6,979)

Proceeds from maturities of marketable debt securities

205,290

343,882

Net cash used in investing activities

 

(144,273)

 

(54,109)

Cash flows from financing activities

Proceeds from issuance of common stock upon exercise of stock awards

 

3,334

 

9,471

Proceeds from issuance of common stock under the Employee Stock Purchase Plan

1,197

937

Net cash provided by financing activities

 

4,531

 

10,408

Net decrease in cash and cash equivalents

 

(90,826)

 

(122,344)

Cash and cash equivalents, beginning of period

 

143,480

 

163,544

Cash and cash equivalents, end of period

$

52,654

$

41,200

Supplemental disclosure of cash flow information

Cash paid during the period for:

Interest

$

13

$

13

Income taxes

$

72

$

Supplemental disclosures of non-cash investing activities

Unrealized loss on marketable debt securities

$

(8,366)

$

(149)

See accompanying notes.

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Table of Contents

Xencor, Inc.

Notes to Financial Statements

(unaudited)

September

June 30, 2022

2023

1. Summary of Significant Accounting Policies

Basis of Presentation

The accompanying unaudited interim financial statements for Xencor, Inc. (the Company, Xencor, we or us) have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) for interim financial information. The financial statements include all adjustments (consisting only of normal recurring adjustments) that the management of the Company believes are necessary for a fair presentation of the periods presented. The preparation of interim financial statements requires the use of management’s estimates and assumptions that affect reported amounts of assets and liabilities at the date of the interim financial statements and the reported revenues and expenditures during the reported periods. These interim financial results are not necessarily indicative of the results expected for the full fiscal year or for any subsequent interim period.

The accompanying unaudited interim financial statements and related notes should be read in conjunction with the audited financial statements and notes thereto included in the Company’s 20212022 Annual Report on Form 10-K filed with the Securities and Exchange Commission (SEC) on February 24, 2022.

2023.

Use of Estimates

The preparation of interim financial statements in conformity with GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses, other comprehensive gain (loss) and the related disclosures. On an ongoing basis, management evaluates its estimates, including estimates related to its accrued clinical trial and manufacturing development expenses, stock-based compensation expense, evaluation of intangible assets, investments, leases and other assets for evidence of impairment, fair value measurements, and contingencies. Significant estimates in these interim financial statements include estimates made for royalty revenue, accrued research and development expenses, stock-based compensation expenses, intangible assets, incremental borrowing rate for right-of-use asset and lease liability, estimated standalone selling price of performance obligations, estimated time for completing delivery of performance obligations under certain arrangements, the likelihood of recognizing variable consideration, the carrying value of equity instruments without a readily determinable fair value, and recoverability of deferred tax assets.

Intangible Assets

The Company maintains definite-lived intangible assets related to certain capitalized costs of acquired licenses and third-party costs incurred in establishing and maintaining its intellectual property rights to its platform technologies and development candidates. These assets are amortized over their useful lives, which are estimated to be the remaining patent life or the contractual term of the license. The straight-line method is used to record amortization expense. The Company assesses its intangible assets for impairment if indicators are present or changes in circumstances suggest that impairment may exist. There was no impairment charge recorded for the three and ninesix months ended SeptemberJune 30, 2022. During the three2023 and nine months ended September 30, 2021, the Company recorded an impairment charge of $0.4 million related to an acquired license.

2022.

The Company capitalizes certain in-process intangible assets that are then abandoned when they are no longer pursued or used in current research activities. We abandoned $0.3 million and $1.3$0.6 million of in-process intangible assets for the three and six months ended June 30, 2023, respectively. We abandoned $0.7 million and $1.0 million of in-process intangible assets during the three and ninesix months ended SeptemberJune 30, 2022, respectively. There was no material abandonment of in-process intangible assets during the three months ended September 30, 2021. We abandoned $0.3 million of in-process intangible assets during the nine months ended September 30, 2021.

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Marketable Debt and Equity Securities

The Company has an investment policy that includes guidelines on acceptable investment securities, minimum credit quality, maturity parameters, and concentration and diversification. The investment policy limits the maturity of any individual security to a maximum of 36 months. The average maturity of securities in the portfolio as of June 30, 2023 is
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less than 12 months. The Company invests its excess cash primarily in marketable debt securities issued by investment grade institutions.

The Company considers its marketable debt securities to be available-for-sale because it is not more likely than not that the Company will be required to sell the securities before recovery of the amortized cost. These assets are carried at fair value and any impairment losses and recoveries related to the underlying issuer’s credit standing are recognized within other income (expense), while non-credit related impairment losses and recoveries are recognized within accumulated other comprehensive income (loss). There were no impairment losses or recoveries recorded for the three and ninesix months ended SeptemberJune 30, 20222023 and 2021.2022. Accrued interest on marketable debt securities is included in the marketable securities’ carrying value. Each reporting period, the Company reviews its portfolio of marketable debt securities, using both quantitative and qualitative factors, to determine if each security’s fair value has declined below its amortized cost basis. During the three and ninesix months ended SeptemberJune 30, 2023, the Company recorded an unrealized gain of $1.8 million and $5.1 million, respectively, in its portfolio of marketable debt securities. During the three and six months ended June 30, 2022, the Company recorded an unrealized loss of $0.9$1.8 million and $8.4$7.4 million, respectively, in its portfolio of marketable debt securities.respectively. The unrealized losses are due to the changing interest rate environment and are not due to changes in the credit quality of the underlying securities. The unrealized losses aregain (loss) is recorded in other comprehensive income (loss) for the three and ninesix months ended SeptemberJune 30, 2023 and 2022.

The Company receives equity securities in connection with certain licensing transactions with its partners. These investments in equity securities are carried at fair value with changes in fair value recognized each period and reported within other income (expense). For equity securities with a readily determinable fair value, the Company remeasures these equity investments at each reporting period until such time that the investment is sold or disposed. If the Company sells an investment, any realized gain or loss on the sale of the securities will be recognized within other income (expense) in the Statements of Comprehensive Income (Loss) in the period of sale.

The Company also has investments in equity securities without a readily determinable fair value, where the Company elects the measurement alternative to record the investment at its initial cost minus impairment, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. During the second quarter ended June 30, 2023, the Company received additional equity in a security in connection with a milestone payment. The securities have a fair value of $10.0 million as of the date of issuance and have been recorded at the initial cost. There was no impairment charge recorded for the three and six months ended SeptemberJune 30, 2022. During the nine months ended September 30, 2022, the Company recorded an impairment charge of $0.1 million2023 in connection with equity securities without a readily determinable fair value. During the three and ninesix months ended SeptemberJune 30, 2021,2022, the Company recorded an impairment charge of $0.6$0.1 million.

Recent Accounting Pronouncements

Pronouncements Not Yet Effective

In June

There have been no material changes in recently issued or adopted accounting standards from those disclosed in the Company's 2022 the Financial Accounting Standards Board (FASB) issued ASU No. 2022-03, Fair Value Measurement (Topic 820): Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions, which is effective for fiscal years beginningAnnual Report on and after December 15, 2023, and interim periods within those fiscal years. The standard clarifies that a contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security and is not considered in measuring fair value.Form 10-K. The Company has reviewed all recently issued accounting pronouncements and does not anticipate that the standardbelieve they will have a significantmaterial impact on itsour results of operations, financial statements.

condition or cash flows.

There have been no other material changes to the significant accounting policies previously disclosed in the Company’s 20212022 Annual Report on Form 10-K.

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2. Fair Value of Financial Instruments

Financial instruments included in the financial statements include cash and cash equivalents, marketable debt and equity securities, accounts receivable, accounts payable, and accrued expenses. Marketable debt securities, equity securities, and cash equivalents are carried at fair value. The fair value of the other financial instruments closely approximates their fair value due to their short-term maturities.

The Company accounts for recurring and non-recurring fair value measurements in accordance with FASB Accounting Standards Codification 820, Fair Value Measurements and Disclosures (ASC 820). ASC 820 defines fair value, establishes a fair value hierarchy for assets and liabilities measured at fair value, and requires expanded disclosure about fair value measurements. The ASC 820 hierarchy ranks the quality of reliable inputs, or assumptions, used in the
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determination of fair value and requires assets and liabilities carried at fair value to be classified and disclosed in one of the following three categories:

Level 1—Fair value is determined by using unadjusted quoted prices that are available in active markets for identical assets or liabilities.

Level 2—Fair value is determined by using inputs other than Level 1 quoted prices that are directly or indirectly observable. Inputs can include quoted prices for similar assets or liabilities in active markets or quoted prices for identical assets or liabilities in markets that are not active. Related inputs can also include those used in valuation or other pricing models, such as interest rates and yield curves that can be corroborated by observable market data.

Level 3—Fair value is determined by inputs that are unobservable and not corroborated by market data. Use of these inputs involves significant and subjective judgments to be made by the reporting entity – e.g., determining an appropriate discount factor for illiquidity associated with a given security.

The Company measures the fair value of financial assets using the highest level of inputs that are reasonably available as of the measurement date. The assets recorded at fair value are classified within the hierarchy as follows for the periods reported (in thousands):

September 30, 2022

(unaudited)

December 31, 2021

    

Total

    

    

    

Total

    

    

Fair Value

Level 1

Level 2

Fair Value

Level 1

Level 2

Money Market Funds

$

24,506

$

24,506

$

$

123,892

$

123,892

$

Corporate Securities

186,597

186,597

144,418

144,418

Government Securities

370,521

370,521

309,814

309,814

$

581,624

$

24,506

$

557,118

$

578,124

$

123,892

$

454,232

June 30, 2023
(unaudited)
December 31, 2022
Total
Fair Value
Level 1Level 2Total
Fair Value
Level 1Level 2
Money Market Funds$21,422 $21,422 $— $40,967 $40,967 $— 
Corporate Securities139,611 — 139,611 200,626 — 200,626 
Government Securities337,056 — 337,056 329,889 — 329,889 
$498,089 $21,422 $476,667 $571,482 $40,967 $530,515 
Our policy is to record transfers of assets between Level 1 and Level 2 at their fair values as of the end of each reporting period, consistent with the date of the determination of fair value. During the three and ninesix months ended SeptemberJune 30, 20222023 and 2021,2022, there were no transfers between Level 1 and Level 2.

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3. Net Income (Loss)Loss Per Common Share

Basic net income (loss) per common share is computed by dividing the net income (loss) attributable to common stockholders by the weighted-average number of common shares outstanding during the period without consideration of common stock equivalents. Diluted net income (loss) per common share is computed by dividing the net income (loss) attributable to common stockholders by the weighted-average number of common stock equivalents outstanding for the period. Potentially dilutive securities consisting of stock issuable pursuant to outstanding options and restricted stock units (RSUs), and stock issuable pursuant to the 2013 Employee Stock Purchase Plan (ESPP) are not included in the per common share calculation in periods when the inclusion of such shares would have an anti-dilutive effect.

Basic and diluted net income (loss)loss per common share is computed as follows:


Three Months Ended

 

Nine Months Ended

September 30, 

September 30, 

    

2022

    

2021

    

2022

    

2021

(in thousands, except share and per share data)

(in thousands, except share and per share data)

Numerator:

Net income (loss) attributable to common stockholders

$

(32,759)

$

(40,191)

$

(43,139)

$

9,570

Denominator:

Weighted-average common shares outstanding used in computing basic net income (loss)

 

59,716,594

 

58,350,647

59,564,985

58,199,928

Effect of dilutive securities

2,146,552

Weighted-average common shares outstanding used in computing diluted net income (loss)

59,716,594

58,350,647

59,564,985

60,346,480

Basic net income (loss) per common share

$

(0.55)

$

(0.69)

$

(0.72)

$

0.16

Diluted net income (loss) per common share

$

(0.55)

$

(0.69)

$

(0.72)

$

0.16

Three Months Ended
June 30,
Six Months Ended
June 30,
2023202220232022
(in thousands, except share and per share data)(in thousands, except share and per share data)
Numerator:
Net loss attributable to common stockholders$(21,954)$(33,975)$(82,717)$(10,380)
Denominator:
Weighted-average common shares outstanding used in computing basic and diluted net loss59,807,55859,567,13959,922,78459,487,924
Basic and diluted net loss per common share$(0.37)$(0.57)$(1.38)$(0.17)
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For the three and ninesix months ended SeptemberJune 30, 2023 and 2022, and three months ended September 30, 2021, weall outstanding potentially dilutive securities have been excluded all shares of stock issuable pursuant to outstanding options and RSUs from the calculation becauseof diluted net loss per common share as the inclusioneffect of including such sharessecurities would have had an anti-dilutive effect. For the nine months ended September 30, 2021, we excluded 1,139,403 shares of stock issuable pursuant to outstanding options and RSUs from the calculation, because the inclusion of such shares would have had an anti-dilutive effect.

been anti-dilutive.

4.

4. Comprehensive Income (Loss)

Comprehensive income (loss) is comprised of net income (loss) and other comprehensive income (loss). For each of the three-three and nine-monthsix-month periods ended SeptemberJune 30, 20222023 and 2021,2022, the only component of other comprehensive lossincome (loss) is net unrealized lossgain (loss) on marketable debt securities. There were no material reclassifications out of accumulated other comprehensive lossincome (loss) during each of the three-three and nine-monthsix-month periods ended SeptemberJune 30, 20222023 and 2021.

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2022.

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5. Marketable Debt and Equity Securities

The Company’s marketable debt securities held as of SeptemberJune 30, 20222023 and December 31, 20212022 are summarized below:

June 30, 2023Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
(in thousands)
Money Market Funds$21,422 $— $— $21,422 
Corporate Securities139,812 (204)139,611 
Government Securities338,704 19 (1,667)337,056 
$499,938 $22 $(1,871)$498,089 
Reported as
Cash and cash equivalents$21,422 
Marketable securities476,667 
Total investments$498,089 
December 31, 2022Amortized
Cost
Gross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
(in thousands)
Money Market Funds$40,967 $— $— $40,967 
Corporate Securities201,752 — (1,126)200,626 
Government Securities335,705 (5,819)329,889 
$578,424 $$(6,945)$571,482 
Reported as
Cash and cash equivalents$40,967 
Marketable securities530,515 
Total investments$571,482 
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Gross

Gross

    

Amortized

    

Unrealized

Unrealized

    

September 30, 2022

Cost

Gains

Losses

Fair Value

(in thousands)

Money Market Funds

$

24,506

$

$

$

24,506

Corporate Securities

188,360

(1,763)

186,597

Government Securities

378,623

(8,102)

370,521

$

591,489

$

$

(9,865)

$

581,624

Reported as

Cash and cash equivalents

$

24,506

Marketable securities

557,118

Total investments

$

581,624

Gross

Gross

    

Amortized

    

Unrealized

Unrealized

    

December 31, 2021

Cost

Gains

Losses

Fair Value

(in thousands)

Money Market Funds

$

123,892

$

$

$

123,892

Corporate Securities

144,584

(166)

144,418

Government Securities

311,148

1

(1,335)

309,814

$

579,624

$

1

$

(1,501)

$

578,124

Reported as

Cash and cash equivalents

$

123,892

Marketable securities

454,232

Total investments

$

578,124

The maturities of the Company’s marketable debt securities as of SeptemberJune 30, 20222023 are as follows:

Amortized

    

Estimated

September 30, 2022

Cost

Fair Value

(in thousands)

Mature in one year or less

$

523,629

$

515,398

Mature within two years

43,354

41,720

$

566,983

$

557,118

13

June 30, 2023Amortized
Cost
Estimated Cost
Fair Value
(in thousands)
Mature in one year or less$478,516 $476,667 

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The unrealized losses on available-for-sale investments and their related fair values as of SeptemberJune 30, 20222023 and December 31, 20212022 are as follows:

Less than 12 months

12 months or greater

Unrealized

Unrealized

September 30, 2022

Fair value

losses

Fair value

losses

(in thousands)

Corporate Securities

$

143,625

$

(1,649)

$

2,880

$

(114)

Government Securities

331,407

(6,582)

38,840

(1,520)

$

475,032

$

(8,231)

$

41,720

$

(1,634)

Less than 12 months

12 months or greater

Unrealized

Unrealized

December 31, 2021

Fair value

losses

Fair value

losses

(in thousands)

Corporate Securities

$

50,337

$

(51)

$

45,872

$

(115)

Government Securities

39,909

(54)

254,593

(1,281)

$

90,246

$

(105)

$

300,465

$

(1,396)

Less than 12 months12 months or greater
June 30, 2023Fair valueUnrealized
losses
Fair valueUnrealized
losses
(in thousands)
Corporate Securities$67,843 $(204)$— $— 
Government Securities275,316 (1,667)— — 
$343,159 $(1,871)$— $— 
Less than 12 months12 months or greater
December 31, 2022Fair valueUnrealized
losses
Fair valueUnrealized
losses
(in thousands)
Corporate Securities$132,658 $(1,121)$3,826 $(5)
Government Securities324,933 (5,819)— — 
$457,591 $(6,940)$3,826 $(5)
The unrealized losses from the available-for-sale securities are primarily due to changes in the interest rate environment and not changes in the credit quality of the underlying securities in the portfolio.

The Company’s equity securities include securities with a readily determinable fair value. These investments are carried at fair value with changes in fair value recognized each period and reported within other income (expense). For the three and ninesix months ended SeptemberJune 30, 2022,2023, a gain of $5.3$0.3 million and a loss of $4.7$2.6 million, respectively, were recorded under other income (expense) related to these securities. For the three and six months ended June 30, 2022, losses of $6.5 million and $10.0 million, respectively, were recorded under other income (expense). Equity securities with a readily determinable fair value, which are categorized as Level 1 in the fair value hierarchy under ASC 820, and their fair values (in thousands) as of SeptemberJune 30, 20222023 and December 31, 20212022 are as follows:

Fair Value

    

Fair Value

September 30, 2022

December 31, 2021

Astria Common Stock

$

5,785

$

3,449

INmune Common Stock

11,690

19,233

Viridian Common Stock

14,709

14,178

$

32,184

$

36,860

Fair ValueFair Value
June 30, 2023December 31, 2022
Astria Common Stock$5,813 $9,529 
INmune Common Stock17,121 11,954 
Viridian Common Stock17,061 20,948 
$39,995 $42,431 
The Company also has investments in equity securities without a readily determinable fair value. The Company elects the measurement alternative to record these investments at their initial cost and evaluate such investments at each reporting period for evidence of impairment, or observable price changes in orderly transactions for the identical or a
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similar investment of the same issuer. Equity securities without a readily determinable fair value and their carrying values (in thousands) as of SeptemberJune 30, 20222023 and December 31, 20212022 are as follows:

Carrying Value

    

Carrying Value

September 30, 2022

December 31, 2021

Astria Preferred Stock

$

174

$

312

Zenas Preferred Stock

30,950

30,950

$

31,124

$

31,262

14

Carrying ValueCarrying Value
June 30, 2023December 31, 2022
Astria Preferred Stock$— $174 
Zenas Preferred Stock64,209 54,209 
$64,209 $54,383 

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In 2018, the Company received equity shares in Quellis Biosciences, Inc. (Quellis) in connection with a licensing transaction. In 2021, Quellis merged into Astria Therapeutics, Inc. (Astria) (formerly Catabasis Pharmaceuticals, Inc.), and theThe Company received common and preferred stock in Astria in exchange for its Quellis equity.connection with a licensing transaction. The shares of Astria common stock have a readily determinable fair value. Thevalue, and the adjustment in the fair value of the Astria common stock has been recorded as a gain inan unrealized loss on equity securities for the three and ninesix months ended SeptemberJune 30, 2022.

2023.

The Company recordsoriginally recorded its investment in the shares of Astria preferred stock as an equity interest without a readily determinable fair value. In January 2023, the Company exchanged its preferred shares for common stock in Astria. The Company elected to recordcommon stock has a readily determinable fair value, and difference in the sharesfair value of preferredthe common stock at their initial cost and to review the carrying value of the preferred stock has been recorded as a gain in equity securities for impairment or other changes in carrying value at each reporting period. During the ninesix months ended SeptemberJune 30, 2022, the2023. The Company recorded an impairment charge of $0.1 milliona loss in equity securities related to its investment in Astria’s preferred stock.

the Astria common stock for the three and six months ended June 30, 2023.

The Company currently holds 1,885,533 shares of common stock of INmune Bio, Inc. (INmune). The 1,885,533 shares of INmune common stock are classified as equity securities with a readily determinable fair value, and the adjustment in the fair value of the shares of INmune common stock has been recorded as a lossgain in equity securities for the three and ninesix months ended SeptemberJune 30, 2022.

2023.

The Company currently holds 717,144 shares of common stock of Viridian Therapeutics, Inc. (Viridian). The shares of Viridian common stock are classified as equity securities with a readily determinable fair value, and the adjustment in the fair value of the shares of Viridian common stock was recorded as a gainloss in equity securities for the three and ninesix months ended SeptemberJune 30, 2022.

2023.

The Company currently holds an equity interest in Zenas BioPharma Limited (Zenas), a private biotechnology company. The Company’s equity interests include preferred stock in Zenas which were received as upfront payments for licensing certain clinical and a warrant to acquire additional equity in Zenas in a subsequent financing. The Company also holds a convertible promissory notepreclinical assets from Zenas.the Company. The Company elected the measurement alternative to carry the Zenas equity and the warrant at cost minus impairment, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. During the three and nine months ended SeptemberJune 30, 2022,2023, the Company received additional preferred shares in Zenas as payment for a milestone. The preferred shares have a fair value of $10.0 million as of the date of issuance. During the three and six months ended June 30, 2023, there has not been any impairment or observable price changes related to this investment.

Unrealized gain (loss) gain recognized on equity securities during each of the three- and nine-monthsix-month periods ended SeptemberJune 30, 20222023 and 2021,2022, consist of the following:

Three Months Ended

 

Nine Months Ended

September 30, 

 

September 30, 

    

2022

    

2021

 

2022

    

2021

Net gain (loss) recognized on equity securities

$

5,299

$

1,506

$

(4,676)

$

57,507

Less: net gain recognized on sale of equity securities

 

 

 

 

(18,301)

Unrealized gain (loss) recognized on equity securities

$

5,299

$

1,506

$

(4,676)

$

39,206

Three Months Ended
June 30,
Six Months Ended
June 30,
2023202220232022
Net and unrealized gain (loss) recognized on equity securities$288 $(6,545)$(2,610)$(9,974)
6. Stock Based Compensation

Our Board of Directors (the Board) and the requisite stockholders previously approved the 2010 Equity Incentive Plan (the 2010 Plan). In October 2013, the Board approved the 2013 Equity Incentive Plan (the 2013 Plan), and in
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November 2013, our stockholders approved the 2013 Plan, which became effective as of December 3, 2013. As of December 2, 2013, we suspended the 2010 Plan, and no additional awards may be granted under the 2010 Plan. Any shares of common stock covered by awards granted under the 2010 Plan that terminate after December 2, 2013 by expiration, forfeiture, cancellation, or other means without the issuance of such shares will be added to the 2013 Plan reserve.

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As of September 30, 2022, the total number of shares of common stock available for issuance under the 2013 Plan is 14,974,396. Unless otherwise determined by the Board, beginning January 1, 2014, and continuing until the expiration of the 2013 Plan, the total number of shares of common stock available for issuance under the 2013 Plan will automatically increase annually on January 1 of each year by 4% of the total number of issued and outstanding shares of common stock as of December 31 of the immediately preceding year. Pursuant to approval by the Board, the total number of shares of common stock available for issuance under the 2013 Plan was increased by 2,374,2222,399,908 shares on January 1, 2022. 2023.

In June 2023, the Board and shareholders approved the 2023 Equity Incentive Plan (the 2023 Plan), which became effective as of June 14, 2023. We suspended the 2013 Plan, and no additional award may be granted under the 2013 Plan. The 2023 Plan reserve consists of 3,000,000 shares and the remaining available shares from the 2013 Plan as of the effective date of the 2023 Plan. In addition, any shares of common stock covered by awards granted under the 2013 Plan that terminate on or after June 14, 2023 by expiration, forfeiture, cancellation, or other means without the issuance of such shares will be added to the 2023 Plan reserve.
As of SeptemberJune 30, 2022,2023, the total number of shares of common stock available for issuance under the 2023 Plan is 19,790,382, which includes 16,932,548 shares of common stock that were available for issuance under the Prior Plans as of the effective date of the 2023 Plan. As of June 30, 2023, a total of 14,407,90616,476,718 options have been granted under the 2013 Plan and 2023 Plan.

In November 2013, the Board and our stockholders approved the ESPP, which became effective as of December 5, 2013. As of SeptemberJune 30, 2022,2023, the total number of shares of common stock available for issuance under the ESPP is 576,409.1,084,060. Unless otherwise determined by the Board, beginning on January 1, 2014, and continuing until the expiration of the ESPP, the total number of shares of common stock available for issuance under the ESPP will automatically increase annually on January 1 by the lesser of (i) 1% of the total number of issued and outstanding shares of common stock as of December 31 of the immediately preceding year, or (ii) 621,814 shares of common stock. Pursuant to approval by the Board, the total number of shares of common stock available for issuance under the ESPP was increased by 593,555599,977 shares on January 1, 2022.2023. As of SeptemberJune 30, 2022,2023, we have issued a total of 598,432690,758 shares of common stock under the ESPP.

During the ninesix months ended SeptemberJune 30, 2022,2023, the Company awarded 809,630944,726 RSUs to certain employees. The standard vesting of these awards is generally in three equal annual installments and is contingent on an employee’s continued service to the Company. The fair value of these awards is determined based on the intrinsic value of the stock on the date of grant and will be recognized as stock-based compensation expense over the requisite service period. As of SeptemberJune 30, 2022,2023, a total of 1,934,1172,944,543 RSUs have been granted under the 2013 Plan and 2023 Plan.

Total employee, director and non-employee stock-based compensation expense recognized for the three and six months ended SeptemberJune 30, 20222023 and 20212022 are as follows (in thousands):

��

Three Months Ended

 

Nine Months Ended

September 30, 

 

September 30, 

    

2022

    

2021

 

2022

    

2021

General and administrative

$

4,736

$

3,370

$

12,760

$

9,300

Research and development

 

8,024

 

5,573

 

23,408

 

17,286

$

12,760

$

8,943

$

36,168

$

26,586

Three Months Ended

Nine Months Ended

September 30, 

September 30, 

2022

    

2021

2022

    

2021

Stock options

$

7,833

$

6,959

$

22,178

$

20,844

ESPP

282

265

873

766

RSUs

4,645

1,719

13,117

4,976

$

12,760

$

8,943

$

36,168

$

26,586

16

Three Months Ended
June 30,
Six Months Ended
June 30,
2023202220232022
General and administrative$4,471 $4,350 $8,747 $8,024 
Research and development9,092 8,253 17,415 15,384 
$13,563 $12,603 $26,162 $23,408 
Three Months Ended
June 30,
Six Months Ended
June 30,
2023202220232022
Stock options$6,842 $7,512 $13,825 $14,345 
ESPP341 290 663 591 
RSUs6,380 4,801 11,674 8,472 
$13,563 $12,603 $26,162 $23,408 

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The following table summarizes option activity under our stock plans and related information:

    

    

    

Weighted

 

Weighted

Average

 

Average

Number of

Exercise

 

Remaining

Aggregate

Shares Subject

Price

 

Contractual

Intrinsic

to Outstanding

(Per

 

Term

Value

Options

Share)

 

(in years)

(in thousands)

Balance at December 31, 2021

 

8,676,329

$

29.11

6.65

$

100,057

Options granted

 

2,007,833

$

29.58

Options forfeited

 

(440,882)

$

33.77

Options exercised

 

(178,904)

$

18.64

Balance at September 30, 2022

 

10,064,376

$

29.18

6.51

$

27,085

Exercisable

6,401,896

$

26.57

5.21

$

26,936

Number of
Shares Subject
to Outstanding
Options
Weighted
Average
Exercise
Price
(Per
Share)
Weighted
Average
Remaining
Contractual
Term
(in years)
Aggregate
Intrinsic
Value
(in thousands)
Balance at December 31, 202210,082,642$29.12 6.30$27,141 
Options granted1,941,412$30.65 
Options forfeited(269,747)$33.95 
Options exercised(179,391)$8.92 
Balance at June 30, 202311,574,916$29.58 6.41$20,561 
Exercisable7,492,446$28.17 5.04$20,504 
We calculate the intrinsic value as the difference between the exercise price of the options and the closing price of common stock of $25.98$24.97 per share as of SeptemberJune 30, 2022.

2023.

The weighted-average fair value of options granted during the nine-monthsix-month periods ended SeptemberJune 30, 2023 and June 30, 2022 were $16.31 and 2021 were $15.50 and $21.96$15.64 per share, respectively. There were 1,662,5741,883,951 options granted during the nine-monthsix-month period ended SeptemberJune 30, 2021.2022. We estimated the fair value of each stock option using the Black-Scholes option-pricing model based on the date of grant of such stock option with the following weighted average assumptions for the three and ninesix months ended SeptemberJune 30, 20222023 and 2021:

Options

Options

 

Three Months Ended

Nine Months Ended

September 30, 

September 30, 

 

    

2022

    

2021

    

2022

    

2021

 

Expected term (years)

6.1

 

6.0

6.3

 

6.2

Expected volatility

51.9

%

55.6

%

53.0

%  

55.6

%

Risk-free interest rate

3.38

%

0.88

%

2.02

%  

1.00

%

Expected dividend yield

%  

%  

%  

%  

ESPP

ESPP

 

Three Months Ended

Nine Months Ended

 

September 30, 

September 30, 

 

    

2022

    

2021

    

2022

    

2021

 

Expected term (years)

 

0.5 - 2.0

 

0.5 - 2.0

0.5 - 2.0

 

0.5 - 2.0

Expected volatility

43.2 - 55.7

%

46.1 - 66.4

%

43.2 - 55.7

%

46.1 - 66.4

%

Risk-free interest rate

 

0.13 - 2.82

%

0.04 - 1.65

%

0.13 - 2.82

%

0.04 - 1.65

%

Expected dividend yield

%

%

%

%

2022:

OptionsOptions
Three Months Ended
June 30,
Six Months Ended
June 30,
2023202220232022
Expected term (years)6.56.36.16.4
Expected volatility51.2 %53.1 %50.5 %53.0 %
Risk-free interest rate3.69 %3.13 %4.17 %1.93 %
Expected dividend yield— %— %— %— %
ESPPESPP
Three Months Ended
June 30,
Six Months Ended
June 30,
2023202220232022
Expected term (years)0.5 - 2.00.5 - 2.00.5 - 2.00.5 -2.0
Expected volatility38.2% - 55.7%43.2% - 55.7%38.2% - 55.7%43.2% - 55.7%
Risk-free interest rate0.13% - 5.39%0.13% - 2.82%0.13% - 5.39%0.13% - 2.82%
Expected dividend yield— %— %— %— %
As of SeptemberJune 30, 2022,2023, the unamortized compensation expense related to unvested stock options was $59.1$66.3 million. The remaining unamortized compensation expense will be recognized over the next 2.52.7 years. As of SeptemberJune 30, 2022,2023, the unamortized compensation expense under our ESPP was $1.4$0.6 million. The remaining unamortized expense will be recognized over the next 1.20.4 years.

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The following table summarizes the RSU activity for the nine-monthsix-month period ended SeptemberJune 30, 2022:

Weighted

Restricted

Average Grant

Stock

Date Fair Value

Units

(Per unit)

Unvested RSUs at December 31, 2021

 

826,148

$

37.79

Granted

 

809,630

29.61

Vested

 

(170,295)

37.42

Forfeited

 

(108,076)

33.65

Unvested RSUs at September 30, 2022

 

1,357,407

$

33.28

2023:

Restricted
Stock
Units
Weighted
Average Grant
Date Fair Value
(Per unit)
Unvested RSUs at December 31, 20221,232,551$32.41 
Granted944,72630.82 
Vested(367,647)32.73 
Forfeited(75,672)31.93 
Unvested RSUs at June 30, 20231,733,958$31.50 
As of SeptemberJune 30, 2022,2023, the unamortized compensation expense related to unvested RSUs was $32.0$43.3 million. The remaining unamortized expense will be recognized over the next 2.02.2 years.

7. Leases

The Company leases office and laboratory space in Monrovia, California under a lease that expires in December 2025 with an option to renew for an additional five years at then market rates. The Company has assessed that it is unlikely to exercise the option to extend the lease term. In July 2017, under a separate agreement, the Company entered into a lease for additional space in the same building with a lease that continues through September 2022. The lease contained an option to renew for additional lease term and the option period has lapsed. In October 2022, the Company entered into an amendment to extend the lease under existing terms through January 31, 2023. For the three and ninesix months ended SeptemberJune 30, 2022,2023, there were no ROU assets obtained in exchange for new operating lease liabilities are $0.3 million.

liabilities.

In June 2021, the Company entered into an Agreement of Lease (Lease Agreement) for laboratory and office space in Pasadena, California, which will expire in July 2035. The Lease Agreement provides for two separate phases of lease and occupancy. The first phase commencescommenced on August 1, 2022 and provides the Company with an improvement allowance up to $17.0 million. The second phase of the lease agreement will commence no later than September 30, 2026 and includes an additional improvement allowance up to $3.3 million. In August 2022, the Company entered into an amendment, which the Company would receive an additional $5.0 million in tenant improvement allowance in exchange for an increase in the rental rate of the phase 1 space. The Company received delivery of the second phase premises on December 1, 2022. The Company placed the new facility into service in February 2023. For the three and ninesix months ended SeptemberJune 30, 2022,2023, there were no ROU assets obtained in exchange for new operating lease liabilities are $11.4 million.

liabilities.

The Company leases additional office space in San Diego, California through August 2022. In May 2022, the Company extended the term of the lease through December 2023. For the ninethree and six months ended SeptemberJune 30, 2022,2023, there were no ROU assets obtained in exchange for new operating lease liabilities are $1.5 million.

The Company also leases additional office space in Monrovia, California under a lease that extends through January 2023, with an option to extend for an additional two years. The Company has assessed that it is unlikely to exercise the option to extend the lease term.liabilities.

The Company’s lease agreements do not contain any residual value guarantees or restrictive covenants.

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The following table reconciles the undiscounted cash flows for the operating leases at SeptemberJune 30, 20222023 to the operating lease liabilities recorded on the balance sheet (in thousands):

Years ending December 31,

For the remainder of 2022

$

727

2023

 

7,251

2024

6,072

2025

6,176

2026

5,638

2027

5,791

Thereafter

49,407

Total undiscounted lease payments

81,062

Less: Tenant allowance

(3,489)

Less: Imputed interest

(34,483)

Present value of lease payments

$

43,090

Lease liabilities - short-term

$

20,551

Lease liabilities - long-term

22,539

Total lease liabilities

$

43,090

Years ending December 31,
For the remainder of 2023$3,021 
20246,072 
20257,392 
20268,589 
20278,829 
20289,076 
Thereafter66,435 
Total undiscounted lease payments109,414 
Less: Tenant allowance(5,459)
Less: Imputed interest(45,112)
Present value of lease payments$58,843 
Lease liabilities - short-term$4,228 
Lease liabilities - long-term54,615 
Total lease liabilities$58,843 
The following table summarizes lease costs and cash payments for the three and ninesix months ended SeptemberJune 30, 20222023 and 20212022 (in thousands):

Three Months Ended

Nine Months Ended

September 30, 

September 30, 

2022

    

2021

2022

    

2021

Operating lease cost

$

1,589

$

1,553

$

4,725

$

2,780

Variable lease cost

156

16

287

44

Total lease costs

$

1,745

$

1,569

$

5,012

$

2,824

Cash paid for amounts included in

the measurement of lease liabilities

$

564

$

1,034

$

1,913

$

2,081

Three Months Ended
June 30,
Six Months Ended
June 30,
2023202220232022
Operating lease cost$2,020 $1,574 $4,200 $3,136 
Variable lease cost219 33 453 132 
Total lease costs$2,239 $1,607 $4,653 $3,268 
Cash paid for amounts included in the measurement of lease liabilities$721 $665 $1,445 $1,349 
As of SeptemberJune 30, 2023, the weighted-average remaining lease term for operating leases is 11.7 years, and the weighted-average discount rate for operating leases is 8.9%. As of June 30, 2022, the weighted-average remaining lease term for operating leases is 11.912.0 years, and the weighted-average discount rate for operating leases is 9.1%6.0%. As of September 30, 2021, the weighted-average remaining lease term for operating leases is 12.3 years, and the weighted-average discount rate for operating leases is 5.7%.

8. Commitments and Contingencies

From time to time, the Company may be subject to various litigation and related matters arising in the ordinary course of business. The Company does not believe it is currently subject to any material matters where there is at least a reasonable possibility that a material loss may be incurred.

The Company is obligated to make future payments to third parties under in license agreements, including sublicense fees, royalties, and payments that become due and payable on the achievement of certain development and commercialization milestones. As the amount and timing of sublicense fees and the achievement and timing of these milestones are not probable and estimable, such commitments have not been included on the Company’s balance sheet. The Company has also entered into agreements with third-party vendors that will require us to make future payments upon the delivery of goods and services in future periods.

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9. Collaboration and Licensing Agreements

The following is a summary description of the material revenue arrangements, including arrangements that generated revenue in the three and ninesix months ended SeptemberJune 30, 20222023 and 2021.

2022.

Alexion Pharmaceuticals, Inc.

In January 2013, the Company entered into an Option and License Agreement (the Alexion Agreement) with Alexion Pharmaceuticals, Inc. (Alexion). Under the terms of the Alexion Agreement, the Company granted to Alexion an exclusive research license, with limited sublicensing rights, to make and use the Company’s Xtend technology to evaluate and advance compounds. Alexion exercised its rights to one target program, ALXN1210, which is now marketed as Ultomiris®.

The Company is eligible to receive a contractual milestone for the achievement of certain commercial achievementssales levels of Ultomiris and is also entitled to receive royalties based on a percentage of net sales of Ultomiris sold by Alexion, its affiliates or its sublicensees, which percentage is in the low single digits. Alexion’s royalty obligations continue on a product-by-product and country-by-country basis until the expiration of the last-to-expire valid claim in a licensed patent covering the applicable product in such country.

Under ASC 606, Revenue from Contracts with Customers, the Company recognizes revenue for sales-based royalties upon the subsequent sale of the product. The Company recognized $7.3$11.2 million and $5.8$6.7 million of royalty revenue under this arrangement for the three months ended SeptemberJune 30, 20222023 and 2021,2022, respectively. The Company recognized $20.2$21.6 million and $16.4$12.9 million of royalty revenue under this arrangement for the ninesix months ended SeptemberJune 30, 20222023 and 2021,2022, respectively. As of SeptemberJune 30, 2022,2023, there is a receivable of $12.5$10.7 million related to royalties due under the arrangement, and there is no deferred revenue related to this agreement.

Amgen Inc.

In September 2015, the Company entered into a research and license agreement (the Amgen Agreement) with Amgen Inc. (Amgen) to develop and commercialize bispecific antibody product candidates using the Company’s proprietary XmAb bispecific Fc technology. Under the Amgen Agreement, Amgen applied our bispecific Fc technology to create AMG 509, a STEAP1 x CD3 XmAb 2+1 bispecific antibody, which is currently being developed by Amgen in a Phase 1 study.

No revenue was recognized under the Amgen Agreement during the three and nine months ended September 30, 2022 or 2021, and there is no deferred revenue related to the arrangement.

Astellas Pharma Inc.

Effective March 29, 2019, the Company entered into a Research and License Agreement (the Astellas Agreement) with Astellas Pharma Inc. (Astellas).

Pursuant to the Astellas Agreement, the Company applied its bispecific Fc technology to research antibodies provided by Astellas to generate bispecific antibody candidates and returned the candidates to Astellas for further development and commercialization.

Under the Astellas Agreement, Astellas developed ASP2138, a CLDN18.2 x CD3 bispecific antibody, which is currently being developed by Astellas in a Phase 1 study.

At March 31, 2022, the Company recorded a contract asset of $5.0 million related to a future development milestone under the Astellas Agreement, and we received the milestone payment in July 2022.

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TheNo revenue was recognized under the arrangement for the three and six months ended June 30, 2023, or the three months ended June 30, 2022, and the Company recognized $5.0 million of revenue for the ninesix months ended SeptemberJune 30, 2022; no revenue was recognized related to the arrangement for the three months ended September 30, 2022, and 2021, or the nine months ended September 30, 2021.2022. As of SeptemberJune 30, 2022,2023, there is no deferred revenue related to the arrangement.

Astria Therapeutics, Inc.

In May 2018, the Company entered into an agreementconnection with Quellis, pursuant to which the Company provided Quellis a non-exclusive license to its Xtend Fc technology to apply to an identified antibody. Quellis is responsible for all development and commercialization activities. The Company received an equity interest in Quellis and is eligible to receive development, regulatory and sales milestones, and royalties in the mid-single digit percentage range on net sales of approved products.

In January 2021, Quellis merged into Astria (formerly Catabasis), andlicensing transaction, the Company received preferred and common stock andin Astria. In January 2023, the Company exchanged its preferred stock of Astriafor additional common stock in exchange for its equity in Quellis. The Company recognized an increase in the fair value of its equity interest for the exchange of shares, which was recorded as unrealized gain for the three months ended September 30, 2021. The Astria preferred stock is carried at its original cost and is reviewed for impairment or other changes at each reporting period.

Astria.

The Company recognized an unrealized gainloss of $3.9$3.5 million and $2.3$3.9 million related to its equity interest in Astria for the three and ninesix months ended SeptemberJune 30, 2022,2023, respectively. The Company recognized an unrealized loss of $2.4 million and an unrealized gain of $6.7$1.5 million related to its equity interest in Astria for the three and ninesix months ended SeptemberJune 30, 2021,2022, respectively. There is no deferred revenue as of SeptemberJune 30, 20222023 related to this agreement.

Genentech, Inc., and F. Hoffmann-La Roche Ltd

In February 2019, the Company entered into a collaboration and license agreement (the Genentech Agreement) with Genentech, Inc. and F. Hoffmann-La Roche Ltd (collectively, Genentech) for the development and commercialization of novel IL-15 collaboration products (Collaboration Products), including XmAb306 (also named RG6323), the Company’s IL-15/IL-15Ra candidate.

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Pursuant to the Genentech Agreement, XmAb306 is designated as a development program and all costs incurred for developing XmAb306 from March 8, 2019, the effective date of the Genentech Agreement, are being shared with Genentech under the initial cost-sharing percentage of 45%.

Pursuant to the Genentech Agreement, the Company and Genentech conducted joint research activities for a two-year period to identify and discover additional IL-15 candidates developed from the Company’s cytokine and bispecific technologies. The two-year research term expired in March 2021. The Company is eligible for clinical milestone payments for new Collaboration Products identified from the research efforts.

The Company did not recognize revenue related to the Genentech Agreement for the three and ninesix months ended SeptemberJune 30, 2022,2023, or the three months ended September 30, 2021. For the nine months ended September 30, 2021, the Company recognized $2.5 million of revenue.2022. As of SeptemberJune 30, 2022,2023, there is a $3.2$1.0 million payablereceivable related to cost-sharing development activities during the second quarter of 20222023 for development studies being conducted under the Genentech Agreement. There is no deferred revenue as of SeptemberJune 30, 2022,2023, as obligations to perform research activities have expired.

INmune Bio, Inc.

In October 2017, the Company entered into a License Agreement (the INmune Agreement) with INmune. Under the terms of the INmune Agreement, the Company provided INmune with an exclusive license to certain rights to a proprietary protein, XPro1595.

In connection with the agreement,a licensing transaction, the Company received shares of INmune common stock.

stock in INmune.

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During the three months ended September 30, 2021, the Company determined that it should no longer record its investment in INmune under the equity method and recorded its investment in INmune pursuant to ASC 321.

For the three and ninesix months ended SeptemberJune 30, 2023, the Company recorded an unrealized gain of $4.9 million and $5.2 million. For the three and six months ended June 30, 2022, the Company recorded an unrealized gain of $0.8 million and an unrealized loss of $5.0$2.6 million and $7.5 million, respectively, related to its investment in INmune. For the three months ended September 30, 2021, the Company recorded $4.5 million of unrealized gain. For the nine months ended September 30, 2021, the Company recognized an unrealized gain of $32.5 million and a realized gain of $18.3 million.

Janssen Biotech, Inc.

Janssen Agreement

In November 2020, the Company entered into a Collaboration and License Agreement (the Janssen Agreement) with Janssen Biotech, Inc. (Janssen) pursuant to which the Company and Janssen conducted research and development activities to discover novel CD28 bispecific antibodies for the treatment of prostate cancer with Janssen maintaining exclusive worldwide rights to develop and commercialize licensed products identified from the research activities.

Under the Janssen Agreement, the Company conducted research activities and applied its bispecific Fc technology to antibodies targeting prostate cancer provided by Janssen. Upon completion of the research activities Janssen had a candidate selection option to advance an identified candidate for development and commercialization. In November 2021, the Company completed its performance obligations under the research activities and delivered CD28 bispecific antibodies to Janssen, and Janssen exercised its candidate selection option to select a bispecific CD28 antibody for further development. Janssen will assume full responsibility for development and commercialization of the CD28 bispecific antibody candidate.

Second Janssen Agreement

On October 1, 2021, the Company entered into a second Collaboration and License Agreement (the Second Janssen Agreement) with Janssen pursuant to which the Company granted Janssen an exclusive worldwide license to develop, manufacture, and commercialize plamotamab, the Company’s CD20 x CD3 development candidate, and pursuant to which Xencor and Janssen will conduct research and development activities to discover novel CD28 bispecific antibodies. The parties will conduct joint research activities for up to a two-year period to discover XmAb bispecific antibodies against CD28 and undisclosed B cell tumor-targets with Janssen receiving exclusive worldwide rights, subject to certain Xencor opt-in rights, to develop, manufacture and commercialize pharmaceutical products that contain one or more of such discovered antibodies (CD28 Licensed Antibodies). The Second Janssen Agreement became effective on November 5, 2021.

Pursuant to the Second Janssen Agreement, the Company received an upfront payment of $100.0 million and is eligible to receive up to $1,187.5 million in milestones which include $289.4 million in development milestones, $378.1 million in regulatory milestones and $520.0 million in sales milestones. Under the terms of the Stock Purchase Agreement, Johnson & Johnson Innovation, JJDC, Inc. (JJDC), agreed to purchase $25.0 million of newly issued unregistered shares of the Company’s common stock, priced at a 30-day volume-weighted average price of $33.4197 per share as of October 1, 2021. The Company issued JJDC 748,062 shares of its common stock which had a fair market value of $28.9 million when the shares were transferred.

The Company will collaborate with Janssen on further clinical development of plamotamab with Janssen and share development costs with Janssen paying from 80% to 85% of certain development program costs and the Company paying from 15% to 20% of certain development costs.

The Company is generally responsible for conducting research activities under the Second Janssen Agreement, and Janssen is generally responsible for all development, manufacturing, and commercialization activities for CD28 Licensed Antibodies that are advanced.

Revenue from the research activities is being recognized over a period of time through the end of the research term that services are rendered as we determine that the input method is the appropriate approach to recognize income for such services.

22

In the first quarter of 2023, Janssen selected a B cell target for further development under the Second Janssen Agreement and the Company received a $5.0 million milestone.

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In the second quarter of 2023, the Company recognized $22.2 million of revenue related to research activities performed under the Second Janssen Agreement. The Company uses the input method under ASC 606 for recognizing revenue related to completing its performance obligations for research services.

There is a receivable of $3.7$2.2 million as of SeptemberJune 30, 2022,2023, related to cost-sharing activities for development of plamotamab under the Second Janssen Agreement. The Company recognized $0.1$22.2 million and $6.3$0.2 million of revenue related to the twoSecond Janssen agreementsAgreement for the three months ended SeptemberJune 30, 20222023 and 2021,2022, respectively. The Company recognized $2.1$27.5 million and $37.0$2.0 million of revenue related to the two Janssen agreements for the ninesix months ended SeptemberJune 30, 2023 and 2022, and 2021, respectively, and thererespectively. There is $35.2$7.9 million in deferred revenue as of SeptemberJune 30, 20222023 related to the Second Janssen Agreement.

MorphoSys AG

In June 2010, the Company entered into a Collaboration and License Agreement with MorphoSys AG (MorphoSys), which was subsequently amended. Under the agreement, we granted MorphoSys an exclusive worldwide license to the Company’s patents and know-how to research, develop and commercialize the XmAb5574 product candidate (subsequently renamed MOR208 and tafasitamab) with the right to sublicense under certain conditions. If certain developmental, regulatory and sales milestones are achieved, the Company is eligible to receive future milestone payments and royalties.

The Company recognized $2.1$2.0 million and $1.3$1.2 million of royalty revenue during the three months ended SeptemberJune 30, 20222023 and 2021,2022, respectively. The Company recognized $5.6$3.9 million and $16.4$3.5 million of royalty revenue during the ninesix months ended SeptemberJune 30, 20222023 and 2021,2022, respectively. As of SeptemberJune 30, 2022,2023, there is a receivable of $2.0 million related to estimated royalties due under the arrangement. As of SeptemberJune 30, 2022,2023, there is no deferred revenue related to this agreement.

Novartis Institute for Biomedical Research, Inc.

In June 2016, the Company entered into a Collaboration and License Agreement (the Novartis Agreement) with Novartis Institutes for BioMedical Research, Inc. (Novartis) to develop and commercialize bispecific and other Fc engineered antibody drug candidates using the Company’s proprietary XmAb technologies and drug candidates.

Pursuant to the Novartis Agreement, the Company and Novartis were co-developing vibecotamab worldwide and sharing development costs. In August 2021, Novartis notified the Company it was terminating its rights with respect to the vibecotamab program, which became effective in February 2022. Under the Novartis Agreement, Novartis is responsible for its share of vibecotamab development costs through February 2023.

In June 2021, Novartis selected an Fc candidate and received a non-exclusive license to the Company’s Fc technology. Novartis will assume full responsibility for development and commercialization of the licensed Fc product candidate. The Company is eligible to receive development, clinical, and sales milestones and royalties on net sales of approved products for the licensed Fc candidate.

No revenue was recognized during the three and ninesix months ended SeptemberJune 30, 2022,2023, or the three months ended September 30, 2021,2022, from the Novartis Agreement. The Company recognized $41.1 million of revenue during the nine months ended September 30, 2021. As of September 30, 2022, there is a receivable of $0.3 million related to cost-sharing of development activities for the third quarter of 2022 for the vibecotamab program, and thereThere is no deferred revenue as of SeptemberJune 30, 2022.

2023.

Vir Biotechnology, Inc.

In the thirdsecond quarter of 2019,2020, the Company entered into a Patent License Agreement (the Vir Agreement) with Vir Biotechnology, Inc. (Vir) pursuant to which the Company provided a non-exclusive license to its Xtend technology for up to two targets.

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In March 2020, the Company entered into a second Patent License Agreement (the Second Vir Agreement) with Vir pursuant to which the Company provided a non-exclusive license to its Xtend technology to extend the half-life of two novel antibodies that Vir is investigating as potential treatments foradvanced into development to treat patients with COVID-19. VIR incorporated our Xtend technology in developing Sotrovimab which was authorized to treat mild-to-moderate COVID 19 in certain patient populations. Under the terms of the Second Vir Agreement, Vir is responsible for all research, development, regulatory and commercial activities for the antibodies, and the Company is eligible to receive royalties on the net sales of approved products in the mid-single digit percentage range. In May 2021,We began earning royalties from the FDA granted emergency use authorization (EUA) to Vir’s COVID-19 antibody, sotrovimab (VIR-7831), for the treatment of mild-to-moderate COVID-19 in high-risk adults and patients.

In February 2021, the Company entered into the Vir Amendment No. 1 to the Vir Agreement and the Vir Amendment No. 1 to the Second Vir Agreement (collectively, the Vir Amendments), in each case, pursuant to which the Company provided a non-exclusive license to additional Fc technology for the targets previously identified in the Vir Agreement and the Second Vir Agreement, respectively. If Vir incorporates additional Fc technologies in the identified targets, the Company is eligible to receive additional royalties on net sales of approved productsSotrovimab in the second quarter of 2021. As the COVID 19 virus has mutated, our royalties from lowthe sale of Sotrovimab have diminished significantly and future revenues from this license are expected to mid-single digit range.

continue to decline.

The Company recognized $17.8$0.1 million and $110.1$22.1 million of royalty revenue for the three and nine months ended SeptemberJune 30, 2023 and 2022, respectively. The Company recognized $6.3$1.5 million and $7.7$92.3 million of royalty revenue for the three and ninesix months ended SeptemberJune 30, 2021,2023 and 2022, respectively. As of SeptemberJune 30, 2022,2023, there is a receivable of $17.8$0.1 million related to estimated royalty due under this agreement, and there is no deferred revenue related to this agreement.

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Viridian Therapeutics, Inc.

In December 2020 the Company entered into a Technology License Agreement (Viridian Agreement) with Viridian, pursuant to which the Company provided Viridian a non-exclusive license to its Xtend Fc technology and an exclusive license to apply its Xtend Fc technology to antibodies targeting IGF-1R. Viridian is responsible for all development and commercialization activities. The Company received an upfront payment and is eligible to receive development, regulatory and sales milestones, and royalties on net sales in the mid-single digit percentage range.

In December 2021, the Company entered into a second Technology License Agreement (Second Viridian Agreement)two separate license agreements with Viridian for a non-exclusive license to certain antibody libraries developed by the Company. Under the Second Viridian Agreement, Viridian received a one-year research license to review the antibodies and the right to select up to three antibodies for further development. Viridian is responsible for all further development of the selected antibodies. The Company received an upfront payment and is eligible to receive development, regulatory and sales milestones, in addition to royalties on net sales of approved products under the Second Viridian Agreement.

In connection with the Viridian Agreement and the Second Viridian Agreement, the Company received shares of Viridian common stock.

stock for each license.

In the three months ended June 30, 2023, Viridian notified the Company it was terminating the initial license agreement.
The Company reported unrealized gainlosses of $6.4$1.2 million and $0.5$5.0 million for the three and nine months ended SeptemberJune 30, 2023 and 2022 related to the shares of Viridian common stock. The Company reported unrealized losslosses of $0.6$3.9 million and $5.9 million for the threesix months ended SeptemberJune 30, 2021. For the nine months ended September 30, 2021, there was no unrealized gain or loss related to the shares of Viridian common stock.2023 and 2022. The Company did not recognize revenue for the three and ninesix months ended SeptemberJune 30, 20222023 or 2021.2022. There is no deferred revenue as of SeptemberJune 30, 20222023 related to this agreement.

Zenas BioPharma Limited

In November 2020, the Company entered into a License Agreement (the Zenas Agreement) with Zenas, pursuant to which the Company grantedreceived an equity interest in Zenas in exchange for the exclusive, worldwide rights to develop and commercialize three preclinical-stage Fc-engineered drug candidates: XmAb6755, XPro9523, and XmAb10171. Undercandidates from the Zenas Agreement, Zenas will be responsible for all further development and commercialization activities for the drug candidates. The Company received a 15% equity interest in Zenas with a fair value of $16.1 million and is eligible to receive royalties on net sales of approved products in the mid-single digit to mid-teen percentage range.

Company.

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The equity in Zenas is recorded at the fair value as of the date of the Zenas Agreement and is reviewed each reporting period for impairment or other evidence of change in value.

In November 2021, the Company entered into a second License Agreement (Second Zenas Agreement) with Zenas, pursuant to which the Company received additional equity in which we licensedZenas in exchange for the exclusive worldwide rights to develop and commercialize the Company’s obexelimab (XmAb5871) drug candidate. Under the Second Zenas Agreement, Zenas will be responsible for all further development and commercialization activities for obexelimab. Thelicense, the Company received a warrant to acquire additional equity in Zenas and is eligible to receive development, regulatory and sales milestones in connection with the development of obexelimab and royalties on net sales of approved productsproducts. The original equity received for the second license was a warrant to acquire additional shares of Zenas. The warrant was exchanged for additional preferred stock in the mid-single digit to mid-teen percentage range.

Zenas in November 2022.

The warrant in Zenas iswas recorded at its fair value as of the date of the Second Zenas Agreement and is reviewed each reporting period for impairment or other evidence of change in value.

The preferred shares received in exchange for the warrant were recorded at their fair value at the date of the exchange and is reviewed each reporting period for impairment or other evidence of change in value.

Zenas advanced obexelimab into Phase 3 clinical studies in the first quarter of 2023 and dosed their second patient in the second quarter of 2023. The Company received a development milestone in the form of additional preferred stock in Zenas with a fair value of $10.0 million.
The Company did not record an impairment or change in the value of the Zenas equity or the warrant in Zenas in the three and ninesix months ended SeptemberJune 30, 20222023 or 2021.2022. The Company recognized $10.0 million of revenue for the three and six months ended June 30, 2023. The Company did not recognize any revenue related to the Zenas Agreement for the three and ninesix months ended SeptemberJune 30, 2022, or 2021, and there is no deferred revenue related to this agreement.

Revenue earned

The revenues recorded for the three and ninesix months ended SeptemberJune 30, 20222023 and 20212022 were earned principally from the following licensees (in millions):

Three Months Ended

 

Nine Months Ended

September 30, 

 

September 30, 

2022

2021

 

2022

2021

Alexion

    

$

7.3

    

$

5.8

$

20.2

    

$

16.4

Astellas

5.0

Genentech

2.5

Janssen

0.1

6.3

2.1

37.0

MorphoSys

2.1

1.3

5.6

16.4

Novartis

 

 

41.1

Vir

17.8

 

6.3

110.1

 

7.7

Total

$

27.3

$

19.7

$

143.0

$

121.1



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Three Months Ended
June 30,
Six Months Ended
June 30,
2023202220232022
Alexion$11.2 $6.7 $21.6 $12.9 
Astellas$— $— $— $5.0 
Janssen$22.2 $0.2 $27.5 $2.0 
MorphoSys$2.0 $1.2 $3.9 $3.5 
Vir$0.1 $22.1 $1.5 $92.3 
Zenas$10.0 $— $10.0 $— 
Total$45.5 $30.2 $64.5 $115.7 
The table below summarizes the disaggregation of revenue recorded for the three and ninesix months ended SeptemberJune 30, 20222023 and 20212022 (in millions):

Three Months Ended

 

Nine Months Ended

September 30, 

 

September 30, 

2022

2021

 

2022

2021

Research collaboration

    

$

0.1

    

$

6.3

$

2.1

    

$

79.7

Milestone

 

5.0

 

14.0

Royalties

27.2

13.4

135.9

27.4

Total

$

27.3

$

19.7

$

143.0

$

121.1

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Three Months Ended
June 30,
Six Months Ended
June 30,
2023202220232022
Research collaboration$22.2 $0.2 $22.5 $2.0 
Milestone10.0 — 15.0 5.0 
Royalties13.3 30.0 27.0 108.7 
Total$45.5 $30.2 $64.5 $115.7 

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Remaining Performance Obligations and Deferred Revenue

The Company’s remaining performance obligation as of SeptemberJune 30, 20222023 is conducting research activities pursuant to research plans under the Second Janssen Agreement. The Company’s obligation to perform research services under the Genentech and the Novartis Agreements ended upon expiration of the respective research terms for each agreement in the second quarter of 2021. As of SeptemberJune 30, 20222023 and 2021,2022, the Company has deferred revenue of $35.2$7.9 million and $13.0$35.3 million, respectively. All deferred revenue as of SeptemberJune 30, 20222023 is classified as current liabilities as the Company’s obligations to perform services are due on demand when requested by Janssen under the Second Janssen Agreement.

10. Income taxes

The provision for income tax for the three and nine months ended September 30, 2022

There is $1.1 million. There was no provision for income tax for the three and ninesix months ended SeptemberJune 30, 2021. Beginning in 2022, the Tax Cuts and Jobs Act (TCJA) requires taxpayers to capitalize certain research and development costs and amortize them over five2023 or fifteen years pursuant to Internal Revenue Code Section 174. Previously, such costs could be deducted in the period they were incurred. This provision may increase our taxable income for the tax yearthree and six months ended December 31, 2022 and subsequent years, and result in additional cash payments for our federal income taxes.June 30, 2022. As of SeptemberJune 30, 2022,2023, the Company’s deferred income tax assets, consisting primarily of net operating loss and tax credit carryforwards, have been fully offset by a valuation allowance.


11. Subsequent Event

In November 2022, Zenas closed on a Series B financing, pursuant to which a warrant to purchase Zenas equity that was held by the Company was automatically exercised, and a convertible note issued to the Company by Zenas was automatically converted with both converting into shares of Zenas’ Series B preferred stock. After the financing transaction, we will continue to record our investment in Zenas at fair value adjusted at each reporting period for impairment or other evidence of change in value. The equity shares in Zenas received from exercise of the warrant and conversion of the notes have an estimated fair value of $34.5 million and $7.7 million, respectively. As a result of the Zenas financing transaction, the estimated fair value of our investment in equity securities would increase by $17.9 million.

ITEM

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion and analysis should be read in conjunction with our financial statements and accompanying notes included in this Quarterly Report on Form 10-Q and the financial statements and accompanying notes thereto for the fiscal year ended December 31, 20212022 and the related Management’s Discussion and Analysis of Financial Condition and Results of Operations, both of which are contained in our Annual Report on Form 10-K for the year ended December 31, 2021.2022. See also “Special Note Regarding Forward-Looking Statements” included in this Quarterly Report on Form 10-Q.

Company Overview

We are a clinical-stage biopharmaceutical company focused on discovering and developing engineered monoclonal antibody and cytokine therapeutics to treat patients with cancer and autoimmune diseases who have unmet medical needs. We and our partners are advancing a broad portfolio of clinical-stage XmAb® drug candidates from our proprietary protein engineering andFc technology platforms. We also use our protein engineering capabilities to increase our understanding of protein structure
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and interactions and to design new Fc technologies and XmAb development candidates with improved properties. In addition to engineering protein-target interactions, our approach to protein design includes engineering Fc domains, the part of an antibody that interacts with multiple segments of the immune system and controls

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antibody structure. The Fc domain is constant and interchangeable among antibodies, and our engineered XmAb Fc domains can be readily substituted for natural Fc domains.

Our protein engineering capabilities and Fc technologies enable us and our partners to develop XmAb antibodies and biotherapeutic drug candidates with improved properties and functionality,function, which can provide innovative approaches to treating disease and potential clinical advantage over other treatment options. For example, we have developed an antibody scaffold to rapidly create novel bispecific antibodies that bind two different targets simultaneously, creating entirely new biological mechanisms. Other applications of our protein engineeringFc technologies enhance antibody performance by increasing immune inhibitory activity, improving cytotoxicity, extending circulating half-life and stabilizing novel protein structures, such as engineered cytokines. Three marketed XmAb medicines have been developed with our protein engineeringFc technologies are marketed by our partners and are generating milestone payments and royaltiesroyalty revenues for us.

us, which partially offset our internal development costs.

Refer to Part I, Item 1, “XmAb"XmAb Bispecific Fc Domain and New Multi-Specific Antibody Formats”Formats" and “Other"Other XmAb Fc Domains”Domains" in the description of our business included in our Annual Report on Form 10-K for the year ended December 31, 20212022 for a discussion of our core Fc technology platforms.

COVID-19

We are closely monitoring the COVID-19 pandemic and continue to evaluate its impact on all aspects of our business including how it will affect our partners, collaborations, supply chains and research and development operations. While the pandemic did not significantly disrupt our business during the three and nine months ended September 30, 2022, the changing nature of the pandemic prevents us from reasonably predicting how the pandemic will affect our financial condition, results of operations and cash flows due to numerous uncertainties. These uncertainties include the scope, severity and duration of the pandemic, the actions taken to contain the pandemic or mitigate its impacts and the direct and indirect economic effects of the pandemic and containment measures, among others. Many states, including California, where we are headquartered and where our principal place of business is located, and cities therein have implemented restrictions, rules and guidelines that affect the continued operation of businesses. Other countries and states where we conduct manufacturing of our drug products, testing activities and clinical sites where patients are enrolled in our clinical trials have enacted similar restrictions that could affect our ability to conduct our drug development and clinical operations.

The potential impacts on our business, revenue, clinical studies and research and development activities of the COVID-19 pandemic include:

Business: Our broad protein engineering capabilities and technologies are uniquely suited to provide us with opportunities to identify and enhance compounds that may target the novel coronavirus and potentially treat patients with COVID-19. For example, sotrovimab (VIR-7831), an antibody that targets the SARS-CoV-2 virus, received an EUA from the FDA for the treatment of mild-to-moderate COVID-19 in high-risk adults and pediatric patients. Due to the high frequency of the Omicron BA.2 subvariant, sotrovimab is not currently authorized in any U.S. region. Sotrovimab currently has EUA temporary authorization or marketing approval (under the brand name Xevudy®) in more than 40 countries. Sotrovimab incorporates our Xtend Fc technology for longer duration of action.

Revenue: We receive upfront payments, milestone payments and royalties from licensing our XmAb technologies and drug candidates. The COVID-19 pandemic has not adversely affected the amount of revenue we generate from such partnerships and collaborations for the quarter ended September 30, 2022. During this quarter, for example, we received approximately $27.2 million in revenue from our partnerships and collaborations.

Our ability to earn revenue from these and other partnerships is dependent on the ability of our partners to generate sales from products, such as Ultomiris®, Monjuvi® and sotrovimab, the ability of our partners to advance our partnered programs through later stages of development and through regulatory approval, which would entitle us to potential milestone payments. A majority of our revenue received in the first nine months of 2022 is royalty revenue from the sales of sotrovimab under our partnership with Vir. In April

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2022, GSK, which is marketing sotrovimab with Vir, announced that a majority of the total 2022 projected sales of sotrovimab was recorded in the first quarter. We recorded royalty revenues of $70.3 million, $22.1 million, and $17.8 million in the first, second, and third quarter, respectively, related to sales of sotrovimab, and based on the guidance from GSK, we expect the amount of royalties that we expect to receive from the sale of sotrovimab to continue to decline in subsequent quarters. If the COVID-19 pandemic adversely affects the sales or clinical, development and regulatory progress of partnered programs, the amount of revenue we could earn would be adversely affected.

Clinical studies: We are currently enrolling patients into multiple clinical trials evaluating our drug candidates, and our partner Genentech is enrolling patients in multiple Phase 1 studies of XmAb306 (also known as RG6323), our co-development program with Genentech. Many partners are also enrolling patients in clinical trials with drug candidates that incorporate one or more XmAb technologies. Although the pandemic has not materially affected development of our clinical programs for the quarter ended September 30, 2022, some of our clinical programs have temporarily experienced slower patient enrollment, and the initiations of new studies for certain programs have been delayed. These delays have not broadly affected the status of our portfolio programs and have been limited to specific trials and specific sites. Many clinical sites have delayed starting new clinical trials and others have postponed enrollment to address the pandemic.

Research, development, and administrative activities: We have implemented environmental, health, and safety procedures for all employees and have also offered reimbursement of costs incurred and time off to employees to receive vaccinations that have been authorized. We believe we provide a safe and healthy environment for our onsite employees who have been able to continue research operations, following an initial period of reduced onsite activities while new policies and procedures were developed and implemented. As of September 30, 2022, these activities have continued without interruption from the COVID-19 pandemic.

Our development activities include initiating a Phase 1 study of XmAb808, our first tumor selective CD28 bispecific candidate that targets B7-H3, and XmAb662, our IL12-Fc cytokine candidate. Several other bispecific antibody and cytokine programs are in earlier stages of development. Certain manufacturing and supply companies have indicated supply chain issues and shortages of research and manufacturing supply materials. The development timelines for additional early-stage programs and ongoing clinical programs could be affected if the supply shortages and delays continue for an extended period.

Government credits: In the second quarter of 2022, we recorded a receivable of $3.2 million related to the U.S. Government Employee Retention Tax Credit (ERTC) Program. The ERTC was established to assist companies that were impacted by the pandemic during 2020 and 2021. The receivable relates to credits that were earned in connection with our operations in the first and second quarter of 2021.

Clinical-Stage XmAb Bispecific Antibody and Cytokine Drug Candidate Updates

Candidates

Our modular XmAb bispecific Fc domains and protein engineering capabilities enable us to rapidly advance multiple drug candidates into clinical development. We and our partners are currently enrolling Phase 1 or Phase 2 studies for sixseven wholly owned or co-development candidates to treat patients with many different types of cancer, and a candidate in development for patients with autoimmune disease.

Vudalimab (PD-1 x CTLA-4): Vudalimab is a bispecific antibody that targets PD-1 and CTLA-4, two immune checkpoint receptors, to selectively activate the tumor microenvironment, and it is being developed for patients with metastatic castration-resistant prostate cancer (mCRPC) and other solid tumor types. We are conducting a Phase 2 study of vudalimab in patients with mCRPC, as a monotherapy or in combination with chemotherapy or a PARP inhibitor depending on the tumor’s molecular subtype. We plan to present data from the first patients in the study at the Annual Meeting of the Society for Immunotherapy of Cancer (SITC) in November 2022.

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We are also conducting a second Phase 2 study in patients with advanced gynecologic malignancies, as well as clinically-defined high-risk mCRPC.

Plamotamab (CD20 x CD3): Plamotamab is a bispecific antibody that targets CD20, an antigen on B-cell tumors, and CD3, an activating receptor on T cells, and we are co-developing the program in collaboration with Janssen. Data from the dose-escalation portion of a Phase 1 study in B-cell malignancies, including from patients with relapsed or refractory non-Hodgkin’s lymphoma (NHL), indicate that plamotamab was generally well tolerated and demonstrated encouraging clinical activity as a monotherapy. Expansion cohorts are actively recruiting patients with diffuse large B-cell lymphoma (DLBCL) and follicular lymphoma (FL) and are dosing using the recommended Phase 2 regimen to further evaluate the safety and efficacy of plamotamab monotherapy. Subcutaneous administration of plamotamab is being incorporated into the study, and we plan to present data from expansion cohorts at the American Society of Hematology (ASH) Annual Meeting in December 2022.

We are also collaborating with MorphoSys AG and Incyte Corporation to investigate the chemotherapy-free triple combination of plamotamab, tafasitamab, and lenalidomide in patients with relapsed or refractory DLBCL, first-line DLBCL and relapsed or refractory FL. In May 2022, we are enrolling in the first of these studies, a potentially registration-enabling Phase 2 study, in patients with relapsed or refractory DLBCL, an aggressive type of NHL.

XmAb306/RG6323 (IL15/IL15Rα-Fc Cytokine): XmAb306 is an IL15/IL15Rα-Fc fusion protein that incorporates our Xtend extended half-life technology, and we are co-developing this program in collaboration with Genentech, a member of the Roche Group. Genentech is conducting a Phase 1 dose-escalation study of XmAb306 as a single agent and in combination with atezolizumab. In November 2021, we announced that XmAb306 promoted high levels of sustained NK cell expansion and evidence of peripheral T cell proliferation had been observed. Genentech has initiated a second study, evaluating XmAb306 in combination with daratumumab (anti-CD38 antibody) in patients with relapsed/refractory multiple myeloma. Additional studies of XmAb306 in combination with other agents are also being planned.

XmAb104 (PD-1 x ICOS): XmAb104 is a bispecific antibody that targets PD-1, an immune checkpoint receptor, and ICOS, an immune co-stimulatory receptor, to selectively activate the tumor microenvironment. We reported initialInitial dose-escalation data from thea Phase 1 study at the American Society of Clinical Oncology in June 2022.indicates that XmAb104 was well tolerated and exhibited a distinct safety profile compared to other clinical-stage ICOS programs. Anti-tumor activity was observed in patients, and biomarker activity was consistent with engagement with T cells. We are evaluating XmAb104 as a monotherapy and in combination with ipilimumab in the Part C expansion portion of a Phase 1 clinical study, for the treatment ofwhich is enrolling patients with advanced solid tumors.

microsatellite stable or proficient mismatch repair colorectal cancer.

XmAb564 (IL2-Fc Cytokine): XmAb564 is a wholly owned, monovalent potency-reduced interleukin-2 Fc (IL-2-Fc) fusion protein engineered to selectively activate and expand regulatory T cells (Tregs) for the potential treatment of patients with autoimmune diseases. XmAb564 is engineered with reduced binding affinity for IL-2’sIL-2's beta receptor and increased binding affinity for its alpha receptor. In preclinical studies, XmAb564 was well-tolerated, promoted the selective and sustained expansion of Tregs and exhibited a favorable pharmacokinetic profile.

In November 2022, we presented dataResults from a randomized, double-blind, placebo-controlled Phase 1a clinical study to evaluateof XmAb564, presented at the safety and tolerabilityEuropean Congress of Rheumatology (EULAR) in May 2023, indicate a single dose of XmAb564, administered subcutaneously in healthy volunteers. The study enrolled 48 subjects, with six dose-level cohorts each randomizing six subjects to XmAb564 and two subjects to placebo. The study demonstrated that a single dose of XmAb564 isvolunteers, was well tolerated and generates agenerated durable, dose-dependent and selective expansion of Tregs. In the highest dose cohort (0.065 mg/kg; Cohort 6),We are conducting a 117-fold mean peak expansion over baseline in CD25bright cells was observed, with an 8-fold expansion in the bulk Treg population. The ratio of Tregs to conventional T cells also increased significantly in a dose-dependent manner. At day 21, both CD25bright and total Treg counts remained markedly elevated, potentially supporting a multi-week dosing profile. All adverse events (AEs) were either Grade 1 or 2 and resolved without intervention. Injection site reaction was the most reported AE.

Xencor has dosed the first patient in a newly initiatedrandomized, double-blind, placebo-controlled Phase 1b multiple-ascending doseclinical study to evaluate the safety and tolerability of multiple ascending doses of XmAb564, administered subcutaneously in patients with atopic dermatitis andor psoriasis.

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XmAb819 (ENPP3 x CD3): XmAb819 is a bispecific antibody that targets ENPP3 and CD3, and it is our lead XmAb 2+1 bispecific antibody candidate.CD3. ENPP3 is a tumor-associated antigen in renal cell carcinoma (RCC) and exhibits low-level expression on. The XmAb 2+1 multivalent format used in XmAb819 enables greater selectivity for ENPP3 expressing tumor cells compared to normal tissues.cells, which also express ENPP3 at lower levels. We are currently enrolling a Phase 1 study to evaluate XmAb819 in patients with advanced clear cell RCC.

Tidutamab (SSTR2 x CD3) and XmAb841 (CTLA-4 x LAG-3): In May 2022, we announced that we do not intend further internal development of tidutamab and XmAb841. Neither program demonstrated a competitive clinical profile in recent studies, and we have decided to focus resources on new clinical programs. We will continue to support patients currently enrolled and being treated. We anticipate spending on these two programs to decline throughout 2022.

XmAb808 (B7-H3 x CD28): XmAb808 is a tumor-selective, co-stimulatory XmAb 2+1 bispecific antibody that targetsdesigned to bind to the broadly expressed tumor antigen B7-H3, and selectively to the CD28 T-cell co-receptor only when bound to tumor cells, which was demonstrated in in vitro studies. In vivo studies further demonstrated strong potentiation
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of checkpoint and CD3 cytotoxic activity. Xencor is our lead XmAb CD28 T cell engager. B7-H3 is a tumor-associated antigen overexpressed on a variety of solid tumors. We are conducting a Phase 1 study to evaluate XmAb808 in combination with pembrolizumab in patients with advanced solid tumors.
XmAb662 (IL12-Fc Cytokine): XmAb662 is a potency-reduced interleukin-12 Fc (IL12-Fc) fusion protein engineered to increase anti-tumor activity and immunogenicity in the tumor microenvironment by promoting high levels of interferon gamma secretion from T cells and NK cells. In preclinical testing, Xencor’s engineered IL12-Fc fusions demonstrated an improved pharmacokinetic profile and therapeutic window compared to a native IL12-Fc fusion, with superior exposure, a more gradual dose response and more sustained interferon gamma response. XmAb662 demonstrated significant anti-tumor activity, along with increases in NK cells, T cells, serum IP-10 and interferon gamma, which were further enhanced when combined with an anti-PD-1 antibody. We are enrolling a Phase 1 study to evaluate XmAb662 in patients with advanced solid tumors.

Candidates Co-Developed with Partners
Plamotamab (CD20 x CD3): Plamotamab is a bispecific antibody that targets CD20, an antigen on B-cell tumors, and CD3, an activating receptor on T cells, and we are co-developing the program in collaboration with Janssen. Results from the expansion portion of a Phase 1 study in patients with refractory non-Hodgkin lymphoma indicate that intravenous plamotamab monotherapy was well tolerated and demonstrated encouraging clinical activity in heavily pretreated patients at the recommended Phase 2 dose. We are currently enrolling patients into subcutaneous dose escalation cohorts of this study.
XmAb306/RG6323 (IL15/IL15Rα-Fc Cytokine): XmAb306 is a reduced-potency IL15/IL15Rα-Fc fusion protein that incorporates our Xtend extended half-life technology, and we are co-developing this program in collaboration with Genentech, a member of the Roche Group. Genentech is conducting a Phase 1 study of XmAb306 as a single agent and in combination with atezolizumab in patients with advanced solid tumors. Genentech has initiated two additional Phase 1 studies, evaluating XmAb306 in patients with relapsed/refractory multiple myeloma, either in combination with daratumumab (anti-CD38 antibody) or in combination with cevostamab (FcRH5 x CD3 bispecific antibody).
Advancements Expanding XmAb Bispecific and Cytokine Platforms

We conduct further research into the function and application of antibody components and cytokines in order to expand the scope of our XmAb technology platforms and identify additional XmAb drug candidates.

We use the modularity of our XmAb bispecific Fc technology to build bispecific antibodies and cytokines in a variety of formats, and we have introduced CD3 bispecific antibodies of a mixed valency format, the XmAb 2+1 bispecific antibody. XmAb 2+1 bispecific antibodies may preferentially kill tumor cells with high target expression, which may be especially beneficial in designing antibodies that target solid tumors. This selectivity potentially empowers CD3 bispecifics to address an expanded set of tumor antigens. Multiple clinical-stage programs incorporate our XmAb 2+1 format, including XmAb819 (ENPP3 x CD3) and Amgen’s AMG 509 (STEAP1 x CD3).

Additionally, we have engineered CD28 bispecific antibodies to provide conditional CD28 co-stimulation of T cells, activating them when bound to tumor cells. Targeted CD28 bispecific antibodies may provide conditional co-stimulation of T cells, for example, to T cells recognizing neoantigens or in concert with CD3 T-cell engaging bispecific antibodies. We are advancing wholly owned CD28 candidates including our lead candidate, XmAb808, a B7-H3 x CD28 bispecific antibody designed to be evaluated for the treatment of patients with a range of solid tumors.

Our CD28 platform is also the subject of two collaborations with Janssen. The first collaboration was announced in 2020 and involves our research efforts to create and characterize CD28 bispecific antibody candidates against a prostate tumor target specified by Janssen. The second Janssen collaboration was announced in October 2021 and includes conducting research activities with Janssen to create and characterize CD28 bispecific antibody candidates against B-cell targets during a two-year period, with Janssen having an exclusive worldwide license to develop selected molecules from the research activities in combination with plamotamab and other agents, such as other CD3 bispecific antibodies.

In April 2022,2023, we presented emerging preclinical data from two wholly owned cytokine programsresearch-stage engineered CD28 bispecific antibodies targeting the solid tumor antigens CEACAM5, ENPP3, mesothelin, STEAP1 and Trop-2 in a poster at the American Association for Cancer Research (AACR) Annual Meeting: XmAb143,Meeting. We anticipate submitting an investigational new drug (IND) application for a decoy-resistant and potency-reduced IL18-Fc fusion protein, and a LAG-3 targeted IL15/IL15Rα-Fc fusion protein,second wholly owned CD28 bispecific antibody in 2024.
We are currently completing IND-enabling activities for an additional XmAb 2+1 bispecific antibody candidate, XmAb541 (Claudin-6 x CD3), which is biased toward binding and activating LAG-3-positive immune cells thatwe are more likely to be tumor-reactive.

In November 2023, at the SITC Annual Meeting, we plan to present additional preclinical data from the IL18-Fc fusion protein and LAG-3 IL15/IL15Rα-Fc fusion protein programs, as well as preclinical data from our NK cell engager platform and costimulatory CD28 trispecific antibodies targeting PDL1 and PDL2.

In 2023, wedeveloping for patients with ovarian cancer. We plan to submit an IND application for XmAb662, a wholly owned, reduced-potency IL12-Fc cytokine and initiate a Phase 1 studyXmAb541 in patients with advanced solid tumors.

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Progress Across Partnerships

A key part of our business strategy is to leverage our protein engineering capabilities, XmAb Fc domains and drug candidates with partnerships, collaborations and licenses. Through these arrangements we generate revenues in the form of upfront payments, milestone payments and royalties. For partnerships for our drug candidates, we aim to retain a major economic interest in the form of keeping major geographic commercial rights; profit-sharing; co-development options; and the right to conduct studies with drug candidates developed in the collaboration. The types of arrangements that we have entered into with partners include product licenses, novel bispecific antibody collaborations, technology licensing agreements and strategic collaborations.

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Product Licenses

Product licenses are arrangements in which we have internally developed drug candidates and, based on a strategic review, licensed partial or full rights to third parties to continue development and potential commercialization. We seek partners that can provide infrastructure and resources to successfully develop our drug candidates, have a track record of successfully developing and commercializing medicines, or have a portfolio of development-stage candidates and commercialized medicines that could potentially be developed in rational combinations with our drug candidates.

The FDA approved Monjuvi® (tafasitamab-cxix) under accelerated approval in July 2020. Monjuvi is a CD19-directed cytolytic antibody indicated in combination with lenalidomide for the treatment of adult patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL) not otherwise specified, including DLBCL arising from low grade lymphoma, and who are not eligible for autologous stem cell transplant (ASCT). This indication is approved under accelerated approval based on overall response rate. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial(s). In August 2021, the European Commission granted conditional marketing authorization for Minjuvi® (tafasitamab) in combination with lenalidomide, followed by tafasitamab monotherapy, for the treatment of adult patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL) who are not eligible for autologous stem cell transplantation (ASCT). Tafasitamab was created and initially developed by us. Tafasitamab is co-marketed by Incyte and MorphoSys under the brand name Monjuvi in the U.S. and is marketed by Incyte under the brand name Minjuvi in the E.U. Incyte has exclusive commercialization rights to tafasitamab outside the U.S. Monjuvi® and Minjuvi® are registered trademarks of MorphoSys AG. We earned $2.1$3.9 million in estimated royalties from MorphoSys for the threesix months ended SeptemberJune 30, 2022.

Novel Bispecific Antibody Collaborations

Novel bispecific antibody collaborations are arrangements in which our partner seeks to create a bispecific antibody using one or more of our XmAb bispecific technologies. Our partners provide an antibody or a tumor-associated antigen, and we conduct limited research and development to create potential bispecific antibody candidates for further development and commercialization by our partners.

2023.

In September 2015,November 2021, we entered into an agreement with Amgen Inc.Zenas BioPharma (Cayman) Limited (Zenas), to which we licensed the exclusive worldwide rights to develop and commercialize bispecificobexelimab, a bifunctional antibody product candidates using our proprietary XmAb bispecific Fc technology. Amgen appliedthat targets CD19 with its variable domain and uses our XmAb bispecificImmune Inhibitor Fc technology to create AMG 509,Domain. In January 2023, Zenas initiated a STEAP1 x CD3 XmAb 2+1 bispecific antibody, which is being evaluatedPhase 3 study of obexelimab in an ongoing dose-escalation Phase 1 study for patients with prostate cancer. In February 2022, Amgen presented encouraging, preliminary pharmacodynamic activity by induction of percent maximum prostate-specific antigen (PSA) decline among 30 patientsautoimmune disease and dosed their second patient in the study, which provides an early signal of activity and validation of the potential of the XmAb 2+1 format.

In March 2019, we entered into an agreement with Astellas Pharma, Inc., under which we applied our XmAb bispecific Fc technology to an antigen pair provided by Astellas and generated bispecific antibody candidates for further certain characterization and testing. Astellas selected a bispecific antibody developed under the collaboration, ASP2138, a CLDN18.2 x CD3 bispecific antibody, for further development and is conducting a Phase 1 clinical studyApril 2023. We received additional preferred stock in patients with gastric, gastroesophageal, and pancreatic cancers. We recognized a $5.0 million milestone from Astellas forZenas as a development milestone in the firstsecond quarter of 2022.

31

Table2023. The additional preferred stock has a fair market value of Contents

In July 2022,$10.0 million and we entered into an agreement with Caris Life Sciences, under which Caris will apply its proprietary end-to-end discovery platform to identify novel targets for XmAb bispecific antibody drug candidates,recorded the milestone payment as revenue for the treatment of patients with cancer. Xencor will receive exclusive options to research, develop and commercialize products directed to up to three targets. Caris will receive an upfront payment and will be eligible to receive up to approximately $120.0 million in license fees, discovery, development, regulatory and sales-based milestones, in addition to royalty payments on net sales of each product commercialized by Xencor and future rights for molecular profiling and companion diagnostics for drug candidates developed under the collaboration.

months ended June 30, 2023.

Technology License Agreements

We enter into technology licensing agreements in which we license access to one or more of our XmAb Fc domains on a restricted basis, typically to an XmAb Cytotoxic Fc Domain and/or the Xtend Fc Domain. Our partners are responsible for all research, development, and commercialization activities of the drug candidates. The plug-and-play nature of XmAb technologies allows us to license access to our platforms with limited or no internal research and development activities.

Alexion’s Ultomiris® uses Xtend Fc technology for longer half-life. Ultomiris has received marketing authorizations from regulatory agencies in the U.S. and multiple global markets for the treatment of patients with paroxysmal nocturnal hemoglobinuria (PNH) and, for certain patients with atypical hemolytic uremic syndrome (aHUS). In April 2022, Ultomiris was approved by the FDA and for the treatment of adultcertain patients with generalized myasthenia gravis (gMG) who are anti-acetylcholine receptor (AChR) antibody positive.. Alexion is also evaluating Ultomiris in a broad late-stage development program across many indicationsadditional hematology and neurology indications. In May 2023, Ultomiris was approved in neurologythe EU and nephrology.Japan for the treatment of certain adult patients with neuromyelitis optica spectrum disorder (NMOSD). We earned $7.3$21.6 million in royalties from Alexion for the threesix months ended SeptemberJune 30, 2022.

2023.

In March 2020, we entered an agreement with Vir Biotechnology, Inc., under which Vir has non-exclusive access to multiple XmAbour Xtend Fc technologies, including Xtend™ Fc technology designed to extend the half-life of novel antibodies that Vir is investigatinginvestigated as potential treatments for patients with COVID-19. In May 2021, the FDA granted EUA to sotrovimab (VIR-7831) for the treatment of mild-to-moderate COVID-19 in high-risk adults and pediatric patients. A second drug candidate, VIR-7832, ispatients; in the first quarter of 2022, the FDA deauthorized sotrovimab in treating patients with COVID-19. In December 2021, the EU granted a Phase 1b/2a trialtemporary authorization for sotrovimab, and several other countries have also provided temporary or conditional authorizations for its use. As the COVID 19 virus has mutated, our royalty revenue from the sales of adults with mild-to-moderate COVID-19.sotrovimab has diminished significantly and future revenue from this license are expected to continue to decline. We earned $17.8$1.5 million in royalties from Vir for the threesix months ended SeptemberJune 30, 2022.

Vir2023.

In December 2020, we entered into an agreement with Viridian Therapeutics, Inc., (Viridian) in which we provided Viridian a non-exclusive license to our Xtend Fc technology and an exclusive license to apply our Xtend Fc
26

Table of Contents
technology to antibodies targeting IGF-1R. Xtend Fc technology was not applied to Viridian antibodies, and the agreement has advanced twobeen terminated.
In December 2021, we entered into a second agreement with Viridian for a non-exclusive license to certain antibody libraries developed by us, for which the term has ended. Under the agreement, Viridian received a one-year research license to review the antibodies and did not select antibodies for further development.
Strategic Collaborations
We enter into strategic collaborations where we can create synergies between our partners’ capabilities and assets and our own protein engineering capabilities, Fc technologies and XmAb drug candidates. Through these arrangements we seek to create new drug candidates, investigate novel combination therapies and potentially identify additional programs underindications for our August 2019 agreement. VIR-2482 is being evaluated in a Phase 2 study as a universal prophylactic for influenza A. In October 2022, Vir announced that developmentportfolio of VIR-2482 in a Phase 2 study, which dosed its first patient the same month. Additionally, VIR-3434 is being evaluated in a Phase 2 combination study as a potential treatment for patients with hepatitis B virus infection and hepatitis D virus infection.

XmAb drug candidates.

Refer to Part I, Item 1, Note 9, Collaboration and Licensing Agreements of the Notes to Financial Statements included in this Quarterly Report on Form 10-Q for a description of the key terms of our arrangements.

We have over 1,3001,400 issued and pending patents worldwide to protect our XmAb technology platform and XmAb drug candidates.

Since we commenced active operations in 1998, we have devoted substantially all our resources to staffing our Company, business planning, raising capital, developing our technology platforms, identifying potential product candidates, undertaking pre-clinicalpreclinical and IND-enabling studies, and conducting clinical trials. We have no internally developed products approved for commercial sale and have not generated any revenues from our own product sales, and we continue to incur significant research and development expenses and other expenses related to our ongoing operations. To date, we have funded our operations primarily through the sale of stock and from payments generated from our product development partnerships and licensing arrangements.

As of SeptemberJune 30, 2022,2023, we had an accumulated deficit of $326.2$421.0 million. Substantially all of the operating losses that we have incurred resulted from expenses incurred in connection with our product candidate development programs, our research activities and general and administrative costs associated with our operations.

32

Table of Contents

Results of Operations

Comparison of the Three Months Ended SeptemberJune 30, 20222023 and 2021

2022

The following table summarizes our results of operations for the three months ended SeptemberJune 30, 20222023 and 20212022 (in millions):

Three Months Ended
June 30,
20232022Change
Revenues:
Research collaboration$22.2 $0.2 $22.0 
  Milestone10.0 — 10.0 
Royalties13.3 30.0 (16.7)
Total revenues45.5 30.2 15.3 
Operating expenses:
 Research and development60.0 47.1 12.9 
 General and administrative11.5 11.1 0.4 
Total operating expenses71.5 58.2 13.3 
Other income (expense), net4.0 (6.0)10.0 
Net loss$(22.0)$(34.0)$12.0 
27

Table of Contents

Three Months Ended

 

September 30, 

 

    

2022

    

2021

    

Change

 

Revenues:

Research collaboration

 

$

0.1

$

6.3

$

(6.2)

Royalties

27.2

13.4

13.8

Total revenues

 

27.3

19.7

7.6

Operating expenses:

Research and development

53.3

 

50.6

2.7

General and administrative

12.4

 

10.4

2.0

Total operating expenses

65.7

 

61.0

4.7

Other income, net

 

6.7

 

1.1

5.6

Loss before income tax expense

(31.7)

(40.2)

8.5

Income tax expense

1.1

1.1

Net loss

$

(32.8)

$

(40.2)

$

7.4

Revenues

Revenues for the three months ended SeptemberJune 30, 20222023 are primarily from research revenue from our second collaboration with Janssen, royalty revenue from Alexion, and Vir.milestone revenue from Zenas. Revenues for the three months ended SeptemberJune 30, 20212022 are primarily from the collaboration with Janssen and royalty revenue from Alexion and Vir.

33

Table of Contents

Research and Development Expenses

The following tables summarize our research and development expenses for the three months ended SeptemberJune 30, 20222023 and 20212022 (in millions):

Three Months Ended
June 30,
20232022Change
Product programs:
Bispecific programs:
CD3 programs:
Plamotamab*$4.1 $1.7 $2.4 
XmAb819 (ENPP3 x CD3)4.8 2.1 2.7 
XmAb541 (CLDN6 X CD3)6.3 1.6 4.7 
Total CD3 programs15.2 5.4 9.8 
XmAb808 (B7-H3 x CD28)4.3 4.1 0.2 
Tumor micro environment (TME) activator programs:
Vudalimab9.6 5.6 4.0 
XmAb1045.8 6.3 (0.5)
Total TME activators programs15.4 11.9 3.5 
Subtotal bispecific programs34.9 21.4 13.5 
Cytokine programs:
XmAb306/RG6323 programs*(0.5)4.2 (4.7)
XmAb5645.9 3.8 2.1 
XmAb662 (IL-12-Fc)3.8 4.5 (0.7)
Total cytokine programs9.2 12.5 (3.3)
Other, research and early stage programs14.7 6.8 7.9 
Wind down costs of terminated programs (1)
1.2 6.4 (5.2)
Total research and development expenses$60.0 $47.1 $12.9 
*Includes net reimbursements to and from our partners pursuant to agreements that include cost-sharing arrangements.
(1)

Three Months Ended

September 30, 

    

2022

    

2021

    

Change

Product programs:

Bispecific programs:

CD3 programs:

Vibecotamab(1)(2)

$

0.9

$

1.5

$

(0.6)

Plamotamab(3)

6.4

9.3

(2.9)

Tidutamab(4)

2.9

3.3

(0.4)

XmAb819 (ENPP3 x CD3)

2.5

3.9

(1.4)

Total CD3 programs

12.7

18.0

(5.3)

XmAb808 (B7-H3 x CD28)

 

3.9

3.3

0.6

Tumor micro environment (TME) activator programs:

Vudalimab

5.5

6.7

(1.2)

XmAb104

5.2

2.6

2.6

XmAb841(5)

1.9

3.5

(1.6)

Total TME activators programs

12.6

12.8

(0.2)

Cytokine programs:

XmAb306/RG6323 programs(6)

4.1

5.7

(1.6)

XmAb564

4.5

3.7

0.8

XmAb662 (IL-12-Fc)

5.4

2.1

3.3

IL-18-Fc

2.3

2.3

Total cytokine programs

16.3

11.5

4.8

Subtotal bispecific programs

45.5

45.6

(0.1)

Other, research and early stage programs

7.8

5.0

 

2.8

Total research and development expenses

 

$

53.3

$

50.6

$

2.7

Research and development expenses include wind down costs of programs that terminated in prior periods including the vibecotamab, tidutamab, and XmAb841 programs.

(1)The costs are net of cost-sharing reimbursement from Novartis under the Novartis Agreement.
(2)Represents wind down costs of the program; Novartis and the Company stopped development of the vibecotamab program in 2021.
(3)The costs are net of cost-sharing reimbursement from Janssen under the Second Janssen Agreement.
(4)Represents wind down costs of the program; the Company stopped development of the tidutamab program in the second quarter of 2022.
(5)Represents wind down costs of the program; the Company stopped development of the XmAb841 program in the second quarter of 2022.
(6)Includes our share of costs paid to Genentech for cost-sharing under the Genentech Agreement.


Three Months Ended

September 30, 

    

2022

    

2021

    

Change

External research and development expenses

 

$

25.5

$

28.2

$

(2.7)

Internal research and development expenses

19.8

16.8

3.0

Stock based compensation

8.0

5.6

2.4

Total research and development expenses

 

$

53.3

$

50.6

$

2.7

28

Table of Contents

Three Months Ended
June 30,
20232022Change
External research and development expenses$25.0 $20.4 $4.6 
Internal research and development expenses25.9 18.4 7.5 
Stock based compensation9.1 8.3 0.8 
Total research and development expenses$60.0 $47.1 $12.9 
Research and development expenses increased by $2.7$12.9 million for the three months ended SeptemberJune 30, 20222023 over the same period in 20212022 primarily due to increased spending on our new developmentCD3 programs XmAb662,including plamotamab, XmAb819 and IL-18 programs, partially offset by reduced spending onXmAb541 and also our CD3vudalimab program and, other research and early stage programs.

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Table of Contents

General and Administrative Expenses

The following table summarizes our general and administrative expenses for the three months ended SeptemberJune 30, 20222023 and 20212022 (in millions):

Three Months Ended

 

September 30, 

 

    

2022

    

2021

    

Change

 

General and administrative

 

$

12.4

$

10.4

 

$

2.0

Three Months Ended
June 30,
20232022Change
General and administrative$11.5 $11.1 $0.4 
General and administrative expenses increased by $2.0$0.4 million for the three months ended SeptemberJune 30, 20222023 over the same period in 20212022 primarily due to increased general and administrative staffingfacility expenses and additional spending on professional fees.

Other Income (Expense), Net

Other income (expense), net was $6.7$4.0 million and $1.1$(6.0) million for the three months ended SeptemberJune 30, 20222023 and 2021,2022, respectively. Other income, net for the three months ended SeptemberJune 30, 20222023 consists of interest income earned on investments, while other expense, net for the same period in 2022 consist primarily of unrealized gainsloss recognized from the change in fair value of our equity investments and interest income earned on investments, while other income, net for the same period in 2021 consist primarilyinvestments.
29

Table of unrealized gain recognized from the change in fair value of our equity investments.

Contents

Comparison of the NineSix Months Ended SeptemberJune 30, 20222023 and 2021

2022

The following table summarizes our results of operations for the ninesix months ended SeptemberJune 30, 20222023 and 20212022 (in millions):

Nine Months Ended

 

September 30, 

 

    

2022

    

2021

    

Change

 

Revenues:

Research collaboration

 

$

2.1

$

79.7

$

(77.6)

Milestone

5.0

 

14.0

(9.0)

Royalties

135.9

27.4

108.5

Total revenues

 

143.0

121.1

21.9

Operating expenses:

Research and development

148.1

 

141.5

 

6.6

General and administrative

34.7

 

27.5

7.2

Total operating expenses

182.8

 

169.0

13.8

Other income (expense), net

 

(2.2)

 

57.5

(59.7)

Income (loss) before income tax expense

(42.0)

9.6

(51.6)

Income tax expense

1.1

1.1

Net income (loss)

$

(43.1)

$

9.6

$

(52.7)

Six Months Ended
June 30,
20232022Change
Revenues:
Research collaboration$22.5 $2.0 $20.5 
  Milestone15.0 5.0 10.0 
Royalties27.0 108.7 (81.7)
Total revenues64.5 115.7 (51.2)
Operating expenses:
 Research and development124.4 94.8 29.6 
 General and administrative25.4 22.4 3.0 
Total operating expenses149.8 117.2 32.6 
Other income (expense), net2.6 (8.9)11.5 
Net loss$(82.7)$(10.4)$(72.3)
Revenues

Revenues for the ninesix months ended SeptemberJune 30, 2023 are primarily from research revenue from our second collaboration with Janssen, royalty revenue from Alexion, and milestone revenue from Janssen and Zenas. Revenues for the six months ended June 30, 2022 are primarily from milestone revenue from Astellas and royalty revenue from Alexion, MorphoSys, and Vir. Revenues for the nine months ended September 30, 2021 are primarily from our collaboration with Janssen, milestone revenue recognized from MorphoSys and Novartis, research revenue recognized under the Genentech and Novartis collaborations, and the royalty revenue from Alexion, MorphoSys, and Vir. 

35

30

Table of Contents

Research and Development Expenses

The following tables summarize our research and development expenses for the six months ended June 30, 2023 and 2022 (in millions):
Six Months Ended
June 30,
20232022Change
Product programs:
Bispecific programs:
CD3 programs:
Plamotamab*$9.8 $7.1 $2.7 
XmAb819 (ENPP3 x CD3)9.2 5.6 3.6 
XmAb541 (CLDN6 X CD3)10.7 2.7 8.0 
Total CD3 programs29.7 15.4 14.3 
XmAb808 (B7-H3 x CD28)8.0 8.9 (0.9)
Tumor micro environment (TME) activator programs:
Vudalimab17.2 11.1 6.1 
XmAb10412.6 11.8 0.8 
Total TME activators programs29.8 22.9 6.9 
Subtotal bispecific programs67.5 47.2 20.3 
Cytokine programs:
XmAb306/RG6323 programs*4.5 7.5 (3.0)
XmAb56412.4 6.9 5.5 
XmAb662 (IL-12-Fc)6.9 7.1 (0.2)
Total cytokine programs23.8 21.5 2.3 
Other, research and early stage programs28.9 12.2 16.7 
Wind down costs of terminated programs (1)
4.2 13.9 (9.7)
Total research and development expenses$124.4 $94.8 $29.6 
*Includes net reimbursements to and from our partners pursuant to agreements that include cost-sharing arrangements.
(1)

Nine Months Ended

September 30, 

    

2022

    

2021

    

Change

Product programs:

Bispecific programs:

CD3 programs:

Vibecotamab(1)(2)

3.8

6.5

(2.7)

Plamotamab(3)

13.6

26.2

(12.6)

Tidutamab(4)

9.2

11.5

(2.3)

XmAb819 (ENPP3 x CD3)

8.1

11.2

(3.1)

Total CD3 programs

34.7

55.4

(20.7)

XmAb808 (B7-H3 x CD28)

 

12.9

4.0

8.9

Tumor micro environment (TME) activator programs:

Vudalimab

16.5

18.9

(2.4)

XmAb104

17.0

11.4

5.6

XmAb841(5)

6.5

8.9

(2.4)

Total TME activators programs

40.0

39.2

0.8

Cytokine programs:

XmAb306/RG6323 programs(6)

11.9

12.8

(0.9)

XmAb564

11.3

10.5

0.8

XmAb662 (IL-12-Fc)

12.6

2.8

9.8

IL-18-Fc

3.0

3.0

Total cytokine programs

38.8

26.1

12.7

Subtotal bispecific programs

126.4

124.7

1.7

Other, research and early stage programs

21.7

16.8

 

4.9

Total research and development expenses

 

$

148.1

$

141.5

$

6.6

Research and development expenses include wind down costs of programs that terminated in prior periods including the vibecotamab, tidutamab, and XmAb841 programs.

(1)The costs are net of cost-sharing reimbursement from Novartis under the Novartis Agreement.
(2)Represents wind down costs of the program; Novartis and the Company stopped development of the vibecotamab program in 2021.
(3)The costs are net of cost-sharing reimbursement from Janssen under the Second Janssen Agreement.
(4)The Company stopped development of the tidutamab program in the second quarter of 2022.
(5)The Company stopped development of the XmAb841 program in the second quarter of 2022.
(6)Includes our share of costs paid to Genentech for cost-sharing under the Genentech Agreement.


Nine Months Ended

September 30, 

    

2022

    

2021

    

Change

External research and development expenses

 

$

66.5

$

75.5

$

(9.0)

Internal research and development expenses

58.2

48.7

9.5

Stock based compensation

23.4

17.3

6.1

Total research and development expenses

 

$

148.1

$

141.5

$

6.6

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Table of Contents

Six Months Ended
June 30,
20232022Change
External research and development expenses$52.8 $41.1 $11.7 
Internal research and development expenses54.2 38.3 15.9 
Stock based compensation17.4 15.4 2.0 
Total research and development expenses$124.4 $94.8 $29.6 
Research and development expenses increased by $6.6$29.6 million for the ninesix months ended SeptemberJune 30, 20222023 over the same period in 20212022 primarily due to increased spending on our new development programs XmAb808, XmAb662,XmAb564, XmAb541 and, IL-18 programs, partially offset by reduced spending on our CD3Vudalimab and other research and early stage programs.

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Table of Contents

General and Administrative Expenses

The following table summarizes our general and administrative expenses for the ninesix months ended SeptemberJune 30, 20222023 and 20212022 (in millions):

Nine Months Ended

September 30, 

    

2022

    

2021

    

Change

General and administrative

 

$

34.7

$

27.5

 

$

7.2

Six Months Ended
June 30,
20232022Change
General and administrative$25.4 $22.4 $3.0 
General and administrative expenses increased by $7.2$3.0 million for the ninesix months ended SeptemberJune 30, 20222023 over the same period in 20212022 primarily due to increased facility expenses, general and administrative staffing, and additional spending on professional fees, and additional facility expenses.

fees.

Other Income (Expense), Net

Other income (expense), net was ($2.2)$2.6 million and $57.5$(8.9) million for the ninesix months ended SeptemberJune 30, 20222023 and 2021,2022, respectively. Other income, (expense) net for the ninesix months ended SeptemberJune 30, 2023 consists of interest income earned on investments, partially offset by unrealized loss recognized from the change in fair value of our equity investments, while other expense, net for the same period in 2022 consists primarily of unrealized loss recognized from the change in fair value of our equity investments, partially offset by the interest income recognized from our marketable debt securities. Other income (expense), net for the nine months ended September 30, 2021 consists primarily of realized gain from the sale of an equity instrument, as well as the unrealized gain recognized from the change in our accounting for an equity investment, and unrealized gain recognized with respect to the exchange of shares without a readily determinable fair value for shares in an entity with a readily determinable fair value.

investments.

Cash Flows

The following table sets forth the primary sources and uses of cash for each of the periods presented below (in thousands):

Nine Months Ended

September 30, 

    

2022

    

2021

    

Change

Net cash provided by (used in):

Operating activities

$

48,916

$

(78,643)

$

127,559

Investing activities

 

(144,273)

 

(54,109)

 

(90,164)

Financing activities

4,531

 

10,408

 

(5,877)

Net decrease in cash

$

(90,826)

$

(122,344)

$

31,518

Six Months Ended June 30,
20232022Change
Net cash provided by (used in):
Operating activities$(68,814)$50,084 $(118,898)
Investing activities$46,739 $(147,398)$194,137 
Financing activities$2,843 $3,244 $(401)
Net decrease in cash$(19,232)$(94,070)$74,838 
Operating Activities

Cash used in operating activities for the six months ended June 30, 2023 was $68.8 million, while cash provided by operating activities for the ninethree months ended SeptemberJune 30, 2022 was $48.9 million, while cash used in operating activities for the nine months ended September 30, 2021 was $78.6$50.1 million. The increase in cash provided byused in operating activities is primarily due to additionallower royalty revenue recognized and increased research and development expenses in the ninesix months ended SeptemberJune 30, 2022.

2023.

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Table of Contents

Investing Activities

Investing activities consist primarily of investments in marketable debt securities available-for-sale, purchases of intangible assets, capitalization of patent and licensing costs and purchases of property and equipment.

Financing Activities

Net cash provided by financing activities represents net proceeds from the exercise of stock options and purchase of ESPP purchase for the ninesix months ended SeptemberJune 30, 20222023 and SeptemberJune 30, 2021,2022, respectively. The proceeds received from option exercises decreased by $5.9 million over the same period in 2021.

37

$0.4 million.

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Liquidity and Capital Resources

We have financed our operations primarily through private placements of our equity securities, the issuance of convertible notes, public offerings of our common stock, and payments received under our product development partnerships and licensing arrangements.

As of SeptemberJune 30, 2022,2023, we had $654.6$531.4 million of cash, cash equivalents, receivables, and marketable debt securities compared to $664.1$613.5 million as of December 31, 2021.2022. The investments in marketable debt securities are further described above in Note 5, Marketable Debt and Equity Securities, of Notes to Financial Statements included in this Quarterly Report on Form 10-Q. We expect to continue to receive additional payments from our collaborators for research and development services rendered, additional milestone, opt-in and contingent payments, and royalties. Our ability to receive additional milestone payments and contingent payments from our partners is dependent upon either our ability or our partners’ abilities to achieve certain levels of research and development activities and is therefore uncertain at this time.

On February 27, 2023, we entered into a sales agreement (the Sales Agreement) with SVB Securities LLC, now doing business as Leerink Partners (Leerink), pursuant to which we may issue and sell from time to time, at our option, up to an aggregate of $200 million of shares of common stock, $0.01 par value per share, of the Company through Leerink as sales agent. The issuance and sale of these shares by Xencor will be pursuant to a sales agreement prospectus filed with the Securities and Exchange Commission (SEC) on February 27, 2023 pursuant to our shelf registration statement on Form S-3ASR (Registration no. 333-2700030) filed with the SEC on February 27, 2023.
Leerink may sell the common stock by any method permitted under law deemed to be an "at the market" offering as defined by Rule 415 of the Securities Act of 1933, as amended including without limitation sales made by means of ordinary brokers on the NASDAQ Global market or otherwise at market prices prevailing at the time of sale or as otherwise directed by the Company. Leerink will use commercially reasonable efforts to sell the common stock from time to time, based on instructions from Xencor.
We are not obligated to sell any shares of common stock under the Sales Agreement. To date, we have not sold any shares under the Sales Agreement.
Funding Requirements

We have not generated any revenue from the sale of products developed by us to date and do not expect to do so until we obtain regulatory approval of and commercialize one or more of our internal product development candidates. As we are currently in the clinical stage of development, it will be some time before we expect to achieve this, and it is uncertain that we ever will commercialize one or more of our internal product development candidates. We expect that we will continue to increase our operating expenses in connection with ongoing as well as additional clinical and preclinical development of product candidates in our pipeline and also development candidates that we are co-developing with our partners.

Although it is difficult to predict our funding requirements, based upon our current operating plan, we expect that our existing cash, cash equivalents, marketable securities, and certain potential milestone payments will fund our operating expenses and capital expenditure requirements through the end of 2025. We have based these estimates on assumptions that may prove to be wrong and the COVID-19 pandemic could materially alter these estimates, which would cause us to use our capital resources sooner than we currently expect.

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Off-Balance Sheet Arrangements

We did not have during the periods presented, and we do not currently have, any off-balance sheet arrangements.

Contractual Obligations and Commitments

There were no material changes outside of the ordinary course of business to our specific contractual obligations during the three months ended SeptemberJune 30, 2022.

2023.

Critical Accounting Policies

For a discussion of our material changes in critical accounting policies, see “Recent Accounting Pronouncements” in Note 1, Summary of Significant Accounting Policies, of the Notes to Financial Statements included in this Quarterly Report on Form 10-Q.

ITEM

Item 3. Quantitative and Qualitative Disclosures about Market Risk

There have been no material changes in the quantitative or qualitative aspects of our market risk profile. For additional information regarding the Company’s exposure to certain market risks, see “Item 7A. Quantitative and Qualitative Disclosures About Market Risk” included in the Form 10-K for the fiscal year ended December 31, 2021.

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2022.

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ITEM

Item 4. Controls and Procedures

Disclosure Controls and Procedures

As required by Rule 13a-15(b) and Rule 15d-15(b) of the Exchange Act, our management, with the supervision of our Chief Executive Officer and Chief Financial Officer (our principal executive officer and principal financial officer, respectively), evaluated the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Exchange Act Rule 13a-15(b) and 15d-15(e)) as of SeptemberJune 30, 2022.2023. Our disclosure controls and procedures are designed to provide reasonable assurance that the information required to be disclosed in this Quarterly Report on Form 10-Q has been appropriately recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms, and that such information is accumulated and communicated to our management, including our principal executive and principal financial officers, to allow timely decisions regarding required disclosure. Based on that evaluation, our principal executive and principal financial officers have concluded that our disclosure controls and procedures are effective at the reasonable assurance level as of SeptemberJune 30, 2022.

2023.

A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues, if any, within a company have been detected. Accordingly, our disclosure controls and procedures are designed to provide reasonable assurance, not absolute assurance, that the objectives of our disclosure control system are met and, as set forth above, our principal executive officer and principal financial officer have concluded, that based on their evaluation as of the end of the period covered by this Quarterly Report on Form 10-Q, our disclosure controls and procedures were effective to provide reasonable assurance that the objective of our disclosure control system were met.

Changes in Internal Control

There were no changes in our internal control over financial reporting that occurred during the three months ended SeptemberJune 30, 20222023 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. Beginning March 17, 2020, a majority of our business, accounting and financial reporting employees began working remotely due to the COVID-19 pandemic. Since that time, we have not experienced any material impact to our internal controls over financial reporting. We are continually monitoring and assessing the COVID-19 situation on our internal controls to minimize the impact to their design and operating effectivenesseffectiveness..

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PART II — OTHER INFORMATION

ITEM

Item 1. Legal Proceedings.

The disclosure in Note 8, Commitments and Contingencies, of the Notes to Financial Statements included in this Quarterly Report on Form 10-Q includes a discussion of our legal proceedings and is incorporated herein by reference.

ITEM

Item 1A. Risk Factors

You should carefully consider the factors discussed in Part I, “Item 1A. Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2021,2022, which could materially affect our business, financial position, or future results of operations. See also “Special Note Regarding Forward-Looking Statements” included in this Quarterly Report on Form 10-Q. In addition to the risks set forth in our Annual Report on Form 10-K for the year ended December 31, 2021,2022, additional risks and uncertainties not currently known to us or that we currently deem to be immaterial may also materially and adversely affect our business.

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Item 5(c). 10b5-1 Plans
On June 9, 2023, John Desjarlais, our Executive Vice President and Chief Scientific Officer, adopted an amended rule10b5-1 trading arrangement that is intended to satisfy the affirmative defense of Rule 10b5-1(c) for the sale of up to 130,000 shares of the Company's common stock until July 31, 2024.
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ITEM

Item 6. Exhibits

Exhibit


Number

Number

Description of Document

3.1

3.2

4.1

4.2

10.1

10.1

31.1

31.2

32.1

101.INS

Inline XBRL Instance Document – The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the inline XBRL document.

101.SCH

Inline XBRL Schema Document

101.CAL

Inline XBRL Calculation Linkbase Document

101.DEF

Inline XBRL Definition Linkbase Document

101.LAB

Inline XBRL Labels Linkbase Document

101.PRE

Inline XBRL Presentation Linkbase Document

104

104104 Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

XENCOR, INC.

BY:

/s/ BASSIL I. DAHIYAT

Bassil I. Dahiyat, Ph.D.

President and Chief Executive Officer

(Principal Executive Officer)

BY:

/s/ JOHN J. KUCH

John J. Kuch

Chief Financial Officer

(Principal Financial Officer)

Dated: November 7, 2022

August 3, 2023

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