SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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

Title of Each Class

Trading Symbol

Name of Each Exchange on Which Registered

Common Stock, $0.001 par value per share

PIRS

The Nasdaq Capital 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 ý☒ No ☐

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 ý ☒No ☐

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 the 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

☐

Accelerated filer

☒

~~Large accelerated filer~~

☐

~~Accelerated filer~~

Non-accelerated filer

☐

Smaller reporting company

ý☒

Emerging growth company

☐

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

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ý☒

As of August ~~5, 2019,~~3, 2020, the registrant had ~~49,392,706~~52,398,600 shares of common stock outstanding.

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, ~~or the Securities Act,~~ and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act, that involve risks and uncertainties, principally in the section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations.” All statements other than statements of historical fact contained in this Quarterly Report on Form 10-Q, including statements regarding future events, our future financial performance, expectations for growth and revenues, anticipated timing and amounts of milestone and other payments under collaboration agreements, business strategy and plans, objectives of management for future operations, timing and outcome of legal and other proceedings, and our ability to finance our operations are forward-looking statements. We have attempted to identify forward-looking statements by terminology including “anticipates,” “believes,” “can,” “continue,” “look forward,” “ongoing,” “could,” “estimates,” “expects,” “intends,” “may,” “appears,” “suggests,” “future,” “likely,” “plans,” “potential,” “possibly,” “projects,” “predicts,” “seek,” “should,” “target,” “would” or “will” or the negative of these terms or other comparable terminology. Although we do not make forward-looking statements unless we believe we have a reasonable basis for doing so, we cannot guarantee their accuracy. These statements are only predictions and involve known and unknown risks, uncertainties and other factors, including the risks outlined under “Risk Factors” or elsewhere in our most recent Annual Report on Form 10-K, which may cause our or our industry’s actual results, levels of activity, performance or achievements expressed or implied by these forward-looking statements to differ materially.

Moreover, we operate in a very competitive and rapidly changing environment. New risks emerge from time to time and it is not possible for us to predict all risk factors, nor can we address the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause our actual results to differ materially from those contained in any forward-looking statements. Actual results could differ materially from our forward-looking statements due to a number of factors, including, without limitation, risks related to: the results of our research and development activities, including uncertainties relating to the discovery of potential drug candidates and the preclinical and ongoing or planned clinical testing of our drug candidates; the early stage of our drug candidates presently under development; our ability to obtain and, if obtained, maintain regulatory approval of our current drug candidates and any of our other future drug candidates; our need for substantial additional funds in order to continue our operations and the uncertainty of whether we will be able to obtain the funding we need; our future financial performance; our ability to retain or hire key scientific or management personnel; our ability to protect our intellectual property rights that are valuable to our business, including patent and other intellectual property rights; our dependence on third-party manufacturers, suppliers, research organizations, testing laboratories and other potential collaborators; the success of our collaborations with third parties; our ability to meet milestones; our ability to successfully market and sell our drug candidates in the future as needed; the size and growth of the potential markets for any of our approved drug candidates, and the rate and degree of market acceptance of any of our approved drug candidates; competition in our industry; regulatory developments in the United States and foreign ~~countries;~~countries, including the timing for, and outcome of, the additional in-use and compatibility study for PRS-343 as requested by the FDA in July 2020, and the resolution of the partial clinical hold relating to that drug candidate; the expected impact of new accounting ~~standards.~~standards; and the length and severity of the pandemic relating to SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2), or coronavirus, which causes coronavirus disease 2019, or COVID-19, which could have an impact on our research, development, supply chain, and clinical trials.

You should not place undue reliance on any forward-looking statement(s), each of which applies only as of the date of this Quarterly Report on Form 10-Q. Before you invest in our securities, you should be aware that the occurrence of the events described in Part I, Item 1A (Risk Factors) of our Annual Report on Form 10-K for the fiscal year ended December 31, ~~2018~~2019 filed with the Securities and Exchange Commission, or SEC, on March ~~18, 2019,~~13, 2020, as well as those in Part II, Item 1A (Risk Factors) of our Quarterly Report on Form 10-Q, for the fiscal quarter ended March 31, 2020, filed with the SEC on May 11, 2020, could negatively affect our business, operating results, financial condition and stock price. All forward-looking statements included in this document are based on information available to us on the date hereof, and except as required by law, we undertake no obligation to update or revise publicly any of the forward-looking statements after the date of this Quarterly Report on Form 10-Q to conform our statements to actual results or changed expectations.

Currency Presentation and Currency Translation

Unless otherwise indicated, all references to “dollars,” “$,” “U.S. $” or “U.S. dollars” are to the lawful currency of the United States. All references in this Quarterly Report on Form 10-Q to “euro” or “€” are to the currency introduced at the start of the third stage of the European Economic and Monetary Union pursuant to the Treaty establishing the European Community, as amended. We prepare our financial statements in U.S. dollars.

The functional currency for our operations is primarily the euro. With respect to our financial statements, the translation from the euro to U.S. dollars is performed for balance sheet accounts using exchange rates in effect at the balance sheet date and for

revenue and expense accounts using a weighted average exchange rate during the period. The resulting translation adjustments are recorded as a component of accumulated other comprehensive income/loss.

Where in this Quarterly Report on Form 10-Q we refer to amounts in euros, we have for your convenience also, in certain cases, provided a conversion of those amounts to U.S. dollars in parentheses. Where the numbers refer to a specific balance sheet account date or financial statement account period, we have used the exchange rate that was used to perform the conversions in connection with the applicable financial statement. In all other instances, unless otherwise indicated, the conversions have been made using the noon buying rate of €1.00 to U.S. ~~$1.1368~~$1.1202 based on information provided by Thomson Reuters as of June 30, ~~2019.~~2020.

PART I - FINANCIAL INFORMATION

Item 1. Financial Statements.

PIERIS PHARMACEUTICALS, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

~~(unaudited)~~(unaudited, in thousands)

~~(in thousands, except share and per share data)~~


	June 30			December 31,				June 30,		December 31,
	2019			2018				2020		2019
Assets							Assets
Current assets:							Current assets:
Cash and cash equivalents	$	54,901		$	74,867		Cash and cash equivalents	$	44,302	$	62,260
Short term investments	44,782			53,240			Short term investments	32,912		41,894
Accounts receivable	7,174			2,701			Accounts receivable	10,712		6,787
Prepaid expenses and other current assets	4,605			4,574			Prepaid expenses and other current assets	4,102		4,072
Total current assets	111,462			135,382			Total current assets	92,028		115,013
Property and equipment, net	7,888			5,049			Property and equipment, net	20,506		19,502
Operating lease right-of-use assets							Operating lease right-of-use assets	3,274		3,436
Other non-current assets	11,490			910			Other non-current assets	1,975		3,146
Total assets	$	130,840		$	141,341		Total assets	$	117,783	$	141,097
Liabilities and stockholders’ equity							Liabilities and stockholders’ equity
Current liabilities:							Current liabilities:
Accounts payable	$	4,031		$	3,350		Accounts payable	$	4,406	$	5,803
Accrued expenses and other current liabilities	8,491			9,114			Accrued expenses and other current liabilities	5,942		9,944
Deferred revenues, current portion	28,406			35,612			Deferred revenues, current portion	7,912		11,256
Total current liabilities	40,928			48,076			Total current liabilities	18,260		27,003
Deferred revenue, net of current portion	58,110			53,303			Deferred revenue, net of current portion	37,845		47,258
Other long-term liabilities	12,317			27
Operating lease liabilities							Operating lease liabilities	15,006		15,484

Total liabilities	111,355			101,406			Total liabilities	71,111		89,745
Stockholders’ equity:							Stockholders’ equity:
Preferred stock, $0.001 par value per share, 10,000,000 shares authorized at June 30, 2019 and December 31, 2018, respectively
Series A Convertible, 2,907 shares issued and outstanding at June 30, 2019 and December 31, 2018, respectively	—			—
Series B Convertible, 5,000 shares issued and outstanding at June 30, 2019. No shares issued and outstanding at December 31, 2018.	—			—
Common stock, $0.001 par value per share, 300,000,000 shares authorized and 49,261,517 and 54,151,219 shares issued and outstanding at June 30, 2019 and December 31, 2018, respectively	49			54
Preferred stock							Preferred stock	—		—

Common stock							Common stock	52		55
Additional paid-in capital	192,956			189,929			Additional paid-in capital	230,407		227,468
Accumulated other comprehensive loss	(2,707		)	(2,982		)	Accumulated other comprehensive loss	(1,064)		(1,995)
Accumulated deficit	(170,813		)	(147,066		)	Accumulated deficit	(182,723)		(174,176)
Total stockholders’ equity	19,485			39,935			Total stockholders’ equity	46,672		51,352
Total liabilities and stockholders’ equity	$	130,840		$	141,341		Total liabilities and stockholders’ equity	$	117,783	$	141,097

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

PIERIS PHARMACEUTICALS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS

(unaudited)

(in thousands, except per share data)


	Three Months Ended June 30						Six Months Ended June 30							Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018				2020		2019		2020		2019
Revenue	$	5,332		$	11,691		$	13,877		$	15,843		Revenue
Customer revenue													Customer revenue	$	10,930	$	4,723	$	19,815	$	11,949
Collaboration revenue													Collaboration revenue	316		609		4,692		1,928
Total revenue													Total revenue	11,246		5,332		24,507		13,877
Operating expenses													Operating expenses
Research and development	13,373			9,155			27,669			17,091			Research and development	11,333		13,373		24,091		27,669
General and administrative	4,189			4,779			9,121			9,131			General and administrative	4,568		4,189		8,927		9,121
Total operating expenses	17,562			13,934			36,790			26,222			Total operating expenses	15,901		17,562		33,018		36,790
Loss from operations	(12,230		)	(2,243		)	(22,913		)	(10,379		)	Loss from operations	(4,655)		(12,230)		(8,511)		(22,913)
Other (expense) income													Other (expense) income
Interest income	449			662			955			987			Interest income	129		449		448		955
Other income (expense), net	23			1,230			(148		)	327
Loss before income taxes	(11,758		)	(351		)	(22,106		)	(9,065		)
Income tax benefit	—			(148		)	—			(148		)
Other (expense) income, net													Other (expense) income, net	(424)		23		(484)		(148)

Net loss	$	(11,758	)	$	(203	)	$	(22,106	)	$	(8,917	)	Net loss	$	(4,950)	$	(11,758)	$	(8,547)	$	(22,106)

Other comprehensive income (loss):
Other comprehensive income:													Other comprehensive income:
Foreign currency translation	(414		)	1,266			272			519			Foreign currency translation	178		(414)		830		272
Unrealized (loss) gain on available-for-sale securities	(237		)	2,133			3			1,602
Comprehensive (loss) income	$	(12,409	)	$	3,196		$	(21,831	)	$	(6,796	)
Unrealized gain (loss) on available-for-sale securities													Unrealized gain (loss) on available-for-sale securities	(15)		(237)		101		3
Comprehensive loss													Comprehensive loss	$	(4,787)	$	(12,409)	$	(7,616)	$	(21,831)
Net loss per share													Net loss per share
Basic and diluted	$	(0.24	)	$	—		$	(0.44	)	$	(0.17	)	Basic and diluted	$	(0.09)	$	(0.24)	$	(0.16)	$	(0.44)
Weighted average number of common shares outstanding													Weighted average number of common shares outstanding
Basic and diluted	49,204			53,983			50,034			52,025			Basic and diluted	52,371		49,204		53,792		50,034

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

PIERIS PHARMACEUTICALS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY

~~(unaudited)~~

(unaudited, in ~~thousands, except per share data)~~thousands)

For the Three Months Ended June 30, 2019 and 2020

Series A convertible
preferred shares

Series B convertible
preferred shares
Common Shares
Additional
paid-in
capital

Accumulated
other
comprehensive
loss

Accumulated
deficit
Total Stockholders' equity

No. of
shares

Share
capital

No. of
shares

Share
capital

No. of
shares

Share
capital

Balance as of March 31, 2018 2,907
$ —
—
—
53,974
$ 54
$ 185,638
$ (5,974 ) $ (129,026 ) $ 50,692
Net loss —
—
—
—
—
—
—
—
(203 ) (203 )
Foreign currency translation adjustment —
—
—
—
—
—
—
1,266
—
1,266
Unrealized gains/(losses) on investments —
—
—
—
—
—
—
2,134
—
2,134
Stock based compensation expense —
—
—
—
—
—
1,360
—
—
1,360
Issuance of common stock resulting from exercise of stock options —
—
—
—
6
—
13
—
—
13
Issuance of common stock resulting from exercise of warrants —
—
—
—
28
—
55
—
—
55
Balance as of June 30, 2018 2,907
$ —
—
$ —
54,008
$ 54
$ 187,066
$ (2,574 ) $ (129,229 ) $ 55,317

Balance as of March 31, 2019 2,907
$ —
5,000
—
49,151
$ 49
$ 191,224
$ (2,056 ) �� $ (159,055 ) $ 30,162
Net loss —
—
—
—
—
—
—
—
(11,758 ) (11,758 )
Foreign currency translation adjustment —
—
—
—
—
—
—
(414 ) —
(414 )
Unrealized gains/(losses) on investments —
—
—
—
—
—
—
(237 ) —
(237 )
Stock based compensation expense —
—
—
—
—
—
1,452
—
—
1,452
Issuance of common stock resulting from exercise of stock options —
—
—
—
50
—
97
—
—
97
Issuance of common stock from employee stock purchase plan —
—
—
—
58
—
178
—
—
178
Issuance of common stock resulting from exercise of warrants —
—
—
—
3
—
5
—
—
5
Balance as of June 30, 2019 2,907
$ —
5,000
$ —
49,262
$ 49
$ 192,956
$ (2,707 ) $ (170,813 ) $ 19,485

~~PIERIS PHARMACEUTICALS, INC.~~

~~CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY~~

~~(unaudited)~~

~~(in thousands, except per share data)~~

~~For the Six Months Ended June 30~~


																										Preferred shares				Common shares						Additional paid-in capital		Accumulated other comprehensive loss		Accumulated deficit	Total Stockholders' equity
	Series A convertible preferred shares				Series B convertible preferred shares			Common Shares					Additional paid-in capital			Accumulated other comprehensive loss			Accumulated deficit			Total stockholders' equity				No. of shares	Share capital		No. of shares	Share capital
	No. of shares		Share capital		No. of shares	Share capital		No. of shares		Share capital
Balance as of December 31, 2017	4,963		$	—	—	—		45,017		$	45		$	136,484		$	(4,695	)	$	(120,312	)	$	11,522
Balance as of March 31, 2019																									Balance as of March 31, 2019	8	$	—	49,151	$	49	$	191,224	$	(2,056)	$	(159,055)	$	30,162
Change in Retained Earnings from adoption of ASC 606																									Change in Retained Earnings from adoption of ASC 606	—	—		—	—		—		—		—		—
Net loss	—		—		—	—		—		—			—			—			(8,917		)	(8,917		)	Net loss	—	—		—	—		—		—		(11,758)		(11,758)
Foreign currency translation adjustment	—		—		—	—		—		—			—			519			—			519			Foreign currency translation adjustment	—	—		—	—		—		(414)		—		(414)
Unrealized gains/(losses) on investments	—		—		—	—		—		—			—			1,602			—			1,602			Unrealized gains/(losses) on investments	—	—		—	—		—		(237)		—		(237)
Stock based compensation expense	—		—		—	—		—		—			2,364			—			—			2,364			Stock based compensation expense	—	—		—	—		1,452		—		—		1,452
Issuance of common stock resulting from exercise of stock options	—		—		—	—		519		1			838			—			—			839			Issuance of common stock resulting from exercise of stock options	—	—		50	—		97		—		—		97
Issuance of common stock resulting from purchase of employee stock purchase plan shares																									Issuance of common stock resulting from purchase of employee stock purchase plan shares	—	—		58	—		178		—		—		178
Issuance of common stock resulting from exercise of warrants	—		—		—	—		91		—			181			—			—			181			Issuance of common stock resulting from exercise of warrants	—	—		3	—		5		—		—		5
Issuance of common stock net $3,374 in offering costs	—		—		—	—		6,325		6			47,201			—			—			47,207
Preferred stock conversion	(2,056	)	—		—	—		2,056		2			(2		)	—			—			—
Balance as of June 30, 2018	2,907		$	—	—	$	—	54,008		$	54		$	187,066		$	(2,574	)	$	(129,229	)	$	55,317

Balance as of December 31, 2018	2,907		$	—	—	—		54,151		$	54		$	189,929		$	(2,982	)	$	(147,066	)	$	39,935
Change in Retained Earnings from adoption of ASC 606	—		—		—	—		—		—			—			—			(1,641		)	(1,641		)
Balance as of June 30, 2019																									Balance as of June 30, 2019	8	$	—	49,262	$	49	$	192,956	$	(2,707)	$	(170,813)	$	19,485

Balance as of March 31, 2020																									Balance as of March 31, 2020	11	$	—	55,212	$	55	$	228,751	$	(1,227)	$	(177,773)	$	49,806
Net loss	—		—		—	—		—		—			—			—			(22,106		)	(22,106		)	Net loss	—	—		—	—		—		—		(4,950)		(4,950)
Foreign currency translation adjustment	—		—		—	—		—		—			—			272			—			272			Foreign currency translation adjustment	—	—		—	—		—		178		—		178
Unrealized gains/(losses) on investments, net of $0.1 million of tax	—		—		—	—		—		—			—			3			—			3
Unrealized gains/(losses) on investments																									Unrealized gains/(losses) on investments	—	—		—	—		—		(15)		—		(15)
Stock based compensation expense	—		—		—	—		—		—			2,742			—			—			2,742			Stock based compensation expense	—	—		—	—		1,237		—		—		1,237
Issuance of common stock resulting from exercise of stock options	—		—		—	—		50		—			97			—			—			97			Issuance of common stock resulting from exercise of stock options	—	—		139	—		271		—		—		271
Issuance of common stock from employee stock purchase plan	—		—		—	—		58		—			178			—			—			178
Issuance of common stock resulting from exercise of warrants	—		—		—	—		3		—			5			—			—			5
Preferred stock conversion	—		—		5,000	—		(5,000	)	(5		)	5			—			—			—
Balance as of June 30, 2019	2,907		$	—	5,000	$	—	49,262		$	49		$	192,956		$	(2,707	)	$	(170,813	)	$	19,485
Issuance of common stock resulting from purchase of employee stock purchase plan shares																									Issuance of common stock resulting from purchase of employee stock purchase plan shares	—	—		47	—		145		—		—		145

Preferred stock conversion (Series D)																									Preferred stock conversion (Series D)	3	—		(3,000)	(3)		3		—		—		—
Balance as of June 30, 2020																									Balance as of June 30, 2020	14	$	—	52,399	$	52	$	230,407	$	(1,064)	$	(182,723)	$	46,672

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

PIERIS PHARMACEUTICALS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY

(unaudited, in thousands)

For the Six Months Ended June 30, 2019 and 2020


	Preferred shares				Common shares						Additional paid-in capital		Accumulated other comprehensive loss		Accumulated deficit	Total Stockholders' equity
	No. of shares	Share capital		No. of shares	Share capital
Balance as of December 31, 2018	3	$	—	54,151	$	54	$	189,929	$	(2,982)	$	(147,066)	$	39,935
Change in Retained Earnings from adoption of ASC 606	—	—		—	—		—		—		(1,641)		(1,641)
Net loss	—	—		—	—		—		—		(22,106)		(22,106)
Foreign currency translation adjustment	—	—		—	—		—		272		—		272
Unrealized loss on investments	—	—		—	—		—		3		—		3
Stock based compensation expense	—	—		—	—		2,742		—		—		2,742
Issuance of common stock resulting from exercise of stock options	—	—		50	—		97		—		—		97
Issuance of common stock resulting from purchase of employee stock purchase plan shares	—	—		58	—		178		—		—		178
Issuance of common stock resulting from exercise of warrants	—	—		3	—		5		—		—		5
Preferred stock conversion	5	—		(5,000)	(5)		5		—		—		—
Balance as of June 30, 2019	8	$	—	49,262	$	49	$	192,956	$	(2,707)	$	(170,813)	$	19,485

Balance as of December 31, 2019	11	$	—	55,212	$	55	$	227,468	$	(1,995)	$	(174,176)	$	51,352
Net loss	—	—		—	—		—		—		(8,547)		(8,547)
Foreign currency translation adjustment	—	—		—	—		—		830		—		830
Unrealized gain on investments	—	—		—	—		—		101		—		101
Stock based compensation expense	—	—		—	—		2,520		—		—		2,520
Issuance of common stock resulting from exercise of stock options	—	—		139	—		271		—		—		271
Issuance of common stock resulting from purchase of employee stock purchase plan shares	—	—		47	—		145		—		—		145


Preferred stock conversion (Series D)	3	—		(3,000)	(3)		3		—		—		—
Balance as of June 30, 2020	14	$	—	52,399	$	52	$	230,407	$	(1,064)	$	(182,723)	$	46,672

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

PIERIS PHARMACEUTICALS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited, in thousands)


	Six Months Ended June 30,
	2020		2019 ⁽¹⁾
Operating activities:
Net loss	$	(8,547)	$	(22,106)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation	869		208
Right-of-use asset amortization	156		215
Stock-based compensation	2,520		2,742

Other non-cash transactions	343		(151)
Changes in operating assets and liabilities	(20,250)		(6,749)
Net cash used in operating activities	(24,909)		(25,841)
Investing activities:
Purchases of property and equipment	(2,988)		(1,054)
Proceeds from maturity of investments	47,523		35,647
Purchases of investments	(38,525)		(26,997)
Net cash provided by investing activities	6,010		7,596
Financing activities:
Proceeds from exercise of stock options	271		97
Proceeds from exercise of warrants	—		5
Proceeds from employee stock purchase plan	145		178


Net cash provided by financing activities	416		280
Effect of exchange rate change on cash and cash equivalents	525		(2,001)
Net decrease in cash and cash equivalents	(17,958)		(19,966)
Cash and cash equivalents at beginning of period	62,260		74,867
Cash and cash equivalents at end of period	$	44,302	$	54,901
Supplemental cash flow disclosures:

Net unrealized gain on investments	$	31	$	93
Property and equipment included in accounts payable	$	329	$	31

Six Months Ended June 30
2019 2018
Operating activities:

Net loss $ (22,106 ) $ (8,917 )
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation 208
275
Stock-based compensation 2,742
2,355
Deferred rent expense 588
—
Other (151 ) 54
Changes in operating assets and liabilities (7,122 ) 28,584
Net cash (used in) provided by operating activities (25,841 ) 22,351
Investing activities:
Purchases of property and equipment (1,054 ) (808 )
Proceeds from maturity of investments 35,647
10,974
Purchases of investments (26,997 ) (67,222 )
Net cash provided by (used in) investing activities 7,596
(57,056 )
Financing activities:
Proceeds from exercise of stock options 97
839
Proceeds from exercise of warrants 5
182
Proceeds from employee stock purchase plan 178
—
Issuance of common stock, net of issuance costs —
47,207
Net cash provided by financing activities 280
48,228
Effect of exchange rate change on cash and cash equivalents (2,001 ) (825 )
Net (decrease) increase in cash and cash equivalents (19,966 ) 12,698
Cash and cash equivalents at beginning of period 74,867
37,878
Cash and cash equivalents at end of period $ 54,901
$ 50,576
Supplemental cash flow disclosures:
Net unrealized gain on investments $ 93
$ 1,667
Property and equipment included in accounts payable $ 31
$ 202
⁽¹⁾ Restated to conform to ASC 842. See accompanying Note 2.

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

PIERIS PHARMACEUTICALS, INC.

NOTES TO THE CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

1. Corporate Information

Pieris Pharmaceuticals, Inc. was founded in May 2013, and acquired 100% interest in Pieris Pharmaceuticals GmbH (formerly Pieris AG, a German company ~~which~~that was founded in 2001) in December 2014. Pieris Pharmaceuticals, Inc. and its wholly-owned subsidiaries, hereinafter collectively Pieris, or the Company, is a clinical-stage biopharmaceutical company that discovers and develops ~~Anticalin®-based~~Anticalin-based drugs to target validated disease pathways in unique and transformative ways. ~~Pieris'~~Pieris’ corporate headquarters is located in Boston, Massachusetts and its research facility is located in ~~Freising-Weihenstephan,~~Hallbergmoos, Germany.

~~Pieris's~~Pieris’ clinical pipeline includes an inhaled IL-4Rα antagonist Anticalin protein to treat uncontrolled asthma and an immuno-oncology, or IO, bispecific targeting HER2 and ~~4-1BB, and a half-life-optimized hepcidin-antagonizing Anticalin protein to treat anemia.~~4-1BB.

The Company’s core Anticalin technology and platform was developed in Germany, and the Company has partnership arrangements with several major multi-national pharmaceutical companies.

As of June 30, ~~2019,~~2020, the Company had cash, cash equivalents and investments of ~~$99.7~~$77.2 million.The Company expects that its existing cash, cash equivalents and investments are sufficient to support operating expense and capital expenditure requirements for at least 12 months from the date of this filing.

2. Summary of Significant Accounting Policies

The Company´s significant accounting policies are described in Note 2 - Summary of Significant Accounting Policies, within the Company´s Annual Report on Form 10-K for the fiscal year ended December 31, ~~2018~~.2019. There has been no material change to the significant accounting policies during the six months ended June 30, ~~2019~~2020, other than the ~~adoption~~Adoption of Financial

Accounting Standards Board, or FASB, Accounting Standards ~~Codification,~~Update, or ~~ASC,~~ASU, No. 2018-18, Collaborative Arrangements (Topic 808): Clarifying the Interaction between Topic 808 and Topic 606~~Revenue from Contracts with Customers~~, or ~~ASC 606,~~ASU 2018-18, described in more detail below.

Unaudited Interim Financial Information

The accompanying unaudited condensed consolidated financial statements included herein have been prepared by the Company in accordance with accounting principles generally accepted in the United States, or U.S. GAAP, for interim financial information and pursuant to the rules and regulations of the SEC. Accordingly, certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. In the opinion of management, all adjustments, consisting of normal recurring ~~adjustment,~~adjustments, and disclosures considered necessary for a fair presentation of interim period results have been included. Interim results for the three and six months ended June 30, ~~2019~~2020 are not necessarily indicative of results that may be expected for the year ending December 31, ~~2019.~~2020. For further information, refer to the financial statements and footnotes thereto included in the ~~Company´s~~Company’s Annual Report on Form 10-K for the fiscal year ended December 31, ~~2018,~~2019, which was filed with the SEC on March ~~18, 2019.~~13, 2020.

Basis of Presentation and Use of Estimates

The accompanying condensed consolidated financial statements of Pieris Pharmaceuticals, Inc. and its wholly-owned subsidiaries were prepared in accordance with U.S. GAAP. The condensed consolidated financial statements include the accounts of all subsidiaries. All intercompany balances and transactions have been eliminated.

The preparation of the financial statements in accordance with U.S. GAAP requires management to make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, revenues, expenses and the related disclosures at the date of the financial statements and during the reporting period. Significant estimates are used for, but are not limited to, revenue recognition; deferred tax assets, deferred tax liabilities and valuation allowances; determination of the incremental borrowing rate to calculate right-of-use assets and lease liabilities; beneficial conversion features; fair value of stock options, preferred stock, and warrants; and various accruals. Management evaluates its estimates on an ongoing basis. Actual results and outcomes could differ materially from management’s estimates, judgments and assumptions.

Cash, Cash Equivalents and Investments

The Company determines the appropriate classification of its investments at the time of purchase. All liquid investments with original maturities of 90 days or less from the purchase date and for which there is an active market are considered to be cash equivalents. The Company’s investments are comprised of money market, asset backed securities, government treasuries and corporate bonds that are classified as available-for-sale in accordance with FASB Accounting Standards Codification, or ASC, 320, Investments—Debt and Equity Securities. The Company classifies investments available to fund current operations as current assets on its balance sheets. Investments are classified as non-current assets on the balance sheets if (i) the Company has the intent and ability to hold the investments for a period of at least one year and (ii) the contractual maturity date of the investments is greater than one year.

Available-for-sale investments are recorded at fair value, with unrealized gains or losses included in accumulated other comprehensive loss on the Company’s balance sheets. Realized gains and losses are determined using the specific identification method and are included as a component of other income. Realized gains of $0.1 million were recognized for the three and six months ended June 30, 2019. Realized gains of approximately $0.1 million and realized losses $0.1 million were recognized for the three and six months ended June 30, 2018.

The Company reviews investments for other-than-temporary impairment whenever the fair value of an investment is less than the amortized cost and evidence indicates that an investment’s carrying amount is not recoverable within a reasonable period of time. To determine whether an impairment is other-than temporary, the Company considers its intent to sell or whether it is more likely than not that the Company will be required to sell the investment before recovery of the investment’s amortized cost basis. Evidence considered in this assessment includes reasons for the impairment, the severity and the duration of the impairment and changes in value subsequent to period end. As of June 30, 2019, there were no investments with a fair value that was significantly lower than the amortized cost basis or any investments that had been in an unrealized loss position for a significant period.

Concentration of Credit Risk and Off-Balance Sheet Risk

The Company has no financial instruments with ~~off‑balance~~off-balance sheet risk such as foreign exchange contracts, option contracts or other foreign hedging arrangements. Financial instruments that subject Pieris to concentrations of credit risk include cash and cash equivalents, investments, and accounts receivable. The Company’s cash, cash equivalents, and investments are held in accounts with financial institutions that management believes are creditworthy. The Company’s investment policy includes guidelines on the quality of the institutions and financial instruments and defines allowable investments that the Company

believes minimizes the exposure to concentration of credit risk. ~~These amounts, at times, may exceed federally insured limits.~~ The Company has not experienced any credit losses in such accounts and does not believe it is exposed to any significant credit risk on these funds. Accounts receivable primarily consist of amounts due under strategic partnership and other license agreements with major multi-national pharmaceutical companies for which the Company does not obtain collateral.

Fair Value Measurement

The Company is required to disclose information on all assets and liabilities reported at fair value that enables an assessment of the inputs used in determining the reported fair values. FASB ASC Topic 820, Fair Value Measurement and Disclosures, or ASC 820, established a hierarchy of inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the financial instrument based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company’s assumptions about the inputs that market participants would use in pricing the financial instrument and are developed based on the best information available in the circumstances. The fair value hierarchy applies only to the valuation inputs used in determining the reported or disclosed fair value of the financial instruments and is not a measure of the investment credit quality. Fair value measurements are classified and disclosed in one of the following three categories:

•Level 1 inputs are quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date.

•Level 2 utilizes quoted market prices in markets that are not active, broker or dealer quotations or alternative pricing sources with reasonable levels of price transparency.

•Level 3 inputs are unobservable inputs for the asset or liability in which there is little, if any, market activity for the asset or liability at the measurement date.

To the extent that valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires more judgment. Accordingly, the degree of judgment exercised by the Company in determining fair value is greatest for instruments categorized in Level 3. A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement.

Financial instruments measured at fair value on a recurring basis include cash equivalents and investments (Note 4).

An entity may elect to measure many financial instruments and certain other items at fair value at specified election dates. Subsequent unrealized gains and losses on items for which the fair value option has been elected will be reported in net loss. The Company did not elect to measure any additional financial instruments or other items at fair value.

Property and Equipment

Property and equipment are recorded at acquisition cost, less accumulated depreciation and impairment. Depreciation on property and equipment is calculated using the straight-line method over the remaining estimated useful lives of the assets. Maintenance and repairs to these assets are charged to expenses as occurred. For the six months ended June 30, 2020, the Company added material assets related to the February 2020 move to a new research and development facility in Hallbergmoos, Germany. Because of this, the Company expanded its presentation of property and equipment to be more descriptive and updated the useful life for one asset category on a prospective basis only. The disclosures for property and equipment, net as of December 31, 2019 have been reclassified to confirm with the current period presentation. The estimated useful life of the different groups of property and equipment is as follows:


Asset Classification						Estimated useful life (in years)
Leasehold improvements						shorter of useful life or remaining life of the lease
Laboratory furniture and equipment						8-14
Office furniture and equipment						5-13
Computer and equipment						3-7

Revenue Recognition

~~Pieris~~The Company has entered into several licensing agreements with collaboration partners for the development of Anticalin therapeutics against a variety of targets. The terms of these agreements provide for the transfer of multiple goods or services which may include: (i) licenses, or options to obtain licenses, to ~~Pieris’s~~the Company’s Anticalin technology and/or specific programs and (ii) research and development activities to be performed on behalf of or with a collaborative partner. Payments to Pieris under these agreements may include upfront fees (which include license and option fees), payments for research and development activities, payments based upon the achievement of certain milestones and royalties on product sales. There are no performance, cancellation, termination or refund provisions in any of the arrangements that could result in material financial consequences to Pieris.

Effective January 1, 2019, the Company adopted ASC 606. The standard requires a company to recognize revenue when it transfers goods or services to customers in an amount that reflects the consideration that the company expects to receive for those goods or services. The standard allows for two transition methods -- full retrospective, in which the standard is applied to each prior reporting period presented, or modified retrospective, in which the cumulative effect of initially applying the standard is recognized at the date of initial adoption. The Company elected the modified retrospective approach and applied it to contracts not completed at the date of adoption. Therefore, comparative prior periods have not been adjusted. The reported results for 2019 reflect the application of ASC 606 guidance while the reported results for 2018 were prepared under the guidance of FASB ASC Topic 605, ~~Revenue Recognition,~~ or ASC 605. Furthermore, the Company adopted the contract modification practical expedient set forth in ASC 606 and will reflect the aggregate effect of all modifications that occurred before January 1, 2019 when identifying the satisfied and unsatisfied performance obligations, determining the transaction price and allocating the transaction price to the satisfied and unsatisfied performance obligations. See Note 3 for additional details on these arrangements.

Collaborative Arrangements

The Company considers the nature and contractual terms of an arrangement and assess whether the arrangement involves a joint operating activity pursuant to which it is an active participant and exposed to significant risks and rewards with respect to the arrangement. If the Company is an active participant and exposed to the significant risks and rewards with respect to the arrangement, it accounts for these arrangements pursuant to ASC 808, Collaborative Arrangements, or ASC 808, and applies a systematic and rational approach to recognize revenue. The Company classifies payments received as revenue and payments made as a reduction of revenue in the period in which they are earned.

In November 2018, the FASB issued Accounting Standards Update, or ASU, 2018-18, which makes targeted improvements to generally accepted accounting principles for collaborative arrangements, including: clarification that certain transactions between collaborative arrangement participants should be accounted for as revenue under ASC 606, Revenue from Contracts with Customers, or ASC 606, when the collaborative arrangement participant is a customer in the context of a unit of account, adding unit-of-account guidance in ASC 808 to align with the guidance in ASC 606, and a requirement that in a transaction with a collaborative arrangement participant that is not directly related to sales to third parties, presenting the transaction together with revenue recognized under ASC 606 is precluded if the collaborative arrangement participant is not a customer. The guidance per ASU 2018-18 was adopted retrospectively to the date of initial application of ASC 606. The Company adopted ASU 2018-18 in the first quarter of 2020. The adoption of this standard did not have a material impact on the Company’s condensed consolidated financial statements; however, revenue recognized under a collaborative arrangement involving a participant that is not a customer (Collaboration Revenue) is now presented separately from Customer Revenue. This change has been reflected in the condensed consolidated statement of operations and the 2019 amounts were adjusted to conform to ASC 808 as follows:


	Three Months Ended June 30, 2019										Six Months Ended June 30, 2019
	As reported pre-adoption		ASC 808 Adoption Adjustment		As reported post-adoption		As reported pre-adoption		ASC 808 Adoption Adjustment		As reported post-adoption
Customer revenue	$	4,934	$	(211)	$	4,723	$	12,468	$	(519)	$	11,949
Collaboration revenue	398		211		609		1,409		519		1,928
Total Revenue	$	5,332	$	—	$	5,332	$	13,877	$	—	$	13,877

Revenue from Contracts with Customers

In accordance with ASC 606, revenue is recognized when a customer obtains control of promised goods or services. The amount of revenue recognized reflects the consideration to which the Company expects to be entitled in exchange for these goods and services. To achieve this core principle, the Company applies the following five steps: 1) identify the customer contract; 2) identify the contract’s performance obligations; 3) determine the transaction price; 4) allocate the transaction price to the performance obligations; and 5) recognize revenue when or as a performance obligation is satisfied.

The Company evaluates all promised goods and services within a customer contract and determines which of such goods and services are separate performance obligations. This evaluation includes an assessment of whether the good or service is capable of being distinct and whether the good or service is separable from other promises in the contract. In assessing whether promised goods or services are distinct, the Company considers factors such as the stage of development of the underlying intellectual property and the capabilities of the customer to develop the intellectual property on their own or whether the required expertise is readily available.

Licensing arrangements are analyzed to determine whether the promised goods or services, which often include licenses, research and development services and governance committee services, are distinct or whether they must be accounted for as part of a combined performance obligation. If the license is considered not to be distinct, the license would then be combined with other promised goods or services as a combined performance obligation. If the Company is involved in a governance committee, it assesses whether its involvement constitutes a separate performance obligation. When governance committee services are determined to be separate performance obligations, the Company determines the fair value to be allocated to this promised service.

Certain contracts contain optional and additional items, which are considered marketing offers and are accounted for as separate contracts with the customer if such option is elected by the customer, unless the option provides a material right which would not be provided without entering into the contract. An option that is considered a material right is accounted for as a separate performance obligation.

The transaction price is determined based on the consideration to which the Company will be entitled in exchange for transferring goods and services to the customer. A contract may contain variable consideration, including potential payments for both milestone and research and development services. For certain potential milestone payments, the Company estimates the amount of variable consideration by using the most likely amount method. In making this assessment, the Company evaluates factors such as the clinical, regulatory, commercial and other risks that must be overcome to achieve the milestone. Each reporting period the Company re-evaluates the probability of achievement of such variable consideration and any related constraints. Pieris will include variable consideration, without constraint, in the transaction price to the extent it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. For potential research and development service payments, the Company estimates the amount of variable consideration by using the expected value method, including any approved budget updates arising from additional research or development services.

If the contract contains a single performance obligation, the entire transaction price is allocated to the single performance obligation. Contracts that contain multiple performance obligations require an allocation of the transaction price among the performance obligations on a relative standalone selling price basis unless the transaction price is variable and meets the criteria to be allocated entirely to a performance obligation or to a distinct good or service that forms part of a single performance obligation.

The Company allocates the transaction price based on the estimated standalone selling price of the underlying performance obligations or in the case of certain variable consideration to one or more performance obligations. The Company must develop assumptions that require judgment to determine the stand-alone selling price for each performance obligation identified in the

contract. The Company utilizes key assumptions to determine the stand-alone selling price, which may include other comparable transactions, pricing considered in negotiating the transaction and the estimated costs to complete the respective performance obligation. Certain variable consideration is allocated specifically to one or more performance obligations in a

contract when the terms of the variable consideration relate to the satisfaction of the performance obligation and the resulting amounts allocated to each performance obligation are consistent with the amount the Company would expect to receive for each performance obligation.

When a performance obligation is satisfied, revenue is recognized for the amount of the transaction price, excluding estimates of variable consideration that are constrained, that is allocated to that performance obligation on a relative standalone selling price basis. Significant management judgment is required in determining the level of effort required under an arrangement and the period over which the Company is expected to complete its performance obligations under an arrangement.

For performance obligations consisting of licenses and other promises, the Company utilizes judgment to assess the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time and, if over time, the appropriate method of measuring progress for purposes of recognizing revenue from non- refundable, up-front fees. The Company evaluates the measure of progress each reporting period and, if necessary, adjusts the measure of performance and related revenue recognition. If the license to the Company’s intellectual property is determined to be distinct from the other performance obligations identified in the arrangement, the Company will recognize revenue from non-refundable, up-front fees allocated to the license when the license is transferred to the customer and the customer is able to use and benefit from the license.

Milestones and Royalties

The Company aggregates milestones into four categories: (i) research milestones, (ii) development milestones, (iii) commercial milestones, and (iv) sales milestones. Research milestones are typically achieved upon reaching certain success criteria as defined in each agreement related to developing an Anticalin protein against the specified target. Development milestones are typically reached when a compound reaches a defined phase of clinical research or passes such phase or upon gaining regulatory approvals. Commercial milestones are typically achieved when an approved pharmaceutical product reaches the status for commercial sale, including regulatory approval. Sales milestones are certain defined levels of net sales by the licensee, such as when a product first achieves global sales or annual sales of a specified amount.

There is uncertainty that the events to obtain the research and development milestones will be achieved given the nature of clinical development and the stage of the Company’s technology. The Company has thus determined that all research and development milestones will be constrained until it is deemed probable that a significant revenue reversal will not occur. For revenues from research and development milestones, payments will be recognized consistent with the recognition pattern of the performance obligation to which they relate.

For arrangements that include sales-based royalties, including milestone payments based on the level of sales, and for which the license is deemed to be the predominant item to which the royalties relate, the Company recognizes revenue at the later of (i) when the related sales occur, or (ii) when the performance obligation to which some or all of the royalty has been allocated has been satisfied (or partially satisfied). Commercial milestones and sales royalties are determined by sales or usage-based thresholds and will be accounted for under the royalty recognition constraint as constrained variable consideration.

Contract Balances

The Company recognizes a contract asset when the Company transfers goods or services to a customer before the customer pays consideration or before payment is due, excluding any amounts presented as a receivable (i.e., accounts receivable). A contract asset is an entity’s right to consideration in exchange for goods or services that the entity has transferred to a customer. The contract liabilities (i.e., deferred revenue) primarily relate to contracts where the Company has received payment but has not yet satisfied the related performance obligations.

In the event of an early termination of a collaboration agreement, any contract liabilities would be recognized in the period in which all Company obligations under the agreement have been fulfilled.

Costs to Obtain and Fulfill a Contract with a Customer

Certain costs to obtain customer contracts, including success-based fees paid to third-party service providers, and costs to fulfill customer contracts are capitalized in accordance with FASB ASC 340, Other Assets and Deferred Costs, or ASC 340. These costs are amortized to expense on a systemic basis that is consistent with the transfer to the customer of the goods or services to which the asset relates. The Company will expense the amortization of costs to obtain customer contracts to general and administrative expense and costs to fulfill customer contracts to research and development expense.

Leases

~~Impact~~Effective on December 31, 2019, the Company lost its emerging growth company, or EGC, status which accelerated the requirement of ~~Adopting~~the adoption of FASB issued ASU No. 2016-02ASC, Leases (Topic 842), or ASC ~~606 on the Financial Statements~~

842. As a result, ~~of applying~~ the ~~modified retrospective method~~Company adjusted its previously reported consolidated financial statements effective January 1, 2019 in the Company's 2019 Form 10-K, and amendments to ~~adopt~~previously filed Forms 10-Q were not required. Accordingly, the Company's prior period condensed consolidated financial statements and information, as presented herein, have been restated to conform to the new ~~revenue guidance, the following adjustments were made to the consolidated balance sheet as of January 1, 2019:~~standard.

As Reported, December 31, 2018 ASC 606 Adjustment Adjusted, January 1, 2019
Consolidated Balance Sheet Data (in thousands):
Prepaid expenses and other current assets $ 4,574
$ 716
$ 5,290
Other non-current assets 910
1,120
2,030
Total Assets $ 141,341
$ 1,836
$ 143,177
Deferred revenue, net of current portion $ 53,303
$ 3,477
$ 56,780
Total Liabilities 101,406
3,477
104,883
Accumulated deficit (147,066 ) (1,641 ) (148,707 )
Total stockholders' equity 39,935
(1,641 ) 38,294
Total liabilities and stockholders' equity $ 141,341
$ 1,836
$ 143,177

~~These changes were primarily caused by the differences in determining and allocating transaction price under ASC 606 and costs to obtain certain contracts.~~

The adoption of ASC 606 did not impact income taxes, as the Company fully reserves its net deferred tax assets. Therefore, the change to the Company's net deferred tax asset position due to adoption was offset by a corresponding change to the valuation allowance.

The following ~~table compares~~tables summarize the ~~reported~~effects of adopting ASC 842 on our condensed consolidated ~~balance sheet and statement of operations, as of June 30, 2019 and for the three and six months ended June 30, 2019, to the pro-forma amounts had the previous guidance been in effect:~~

June 30, 2019
As Reported, ASC 606 Adjustments Adjusted Balance, ASC 605
Condensed Consolidated Balance Sheet Data (in thousands):
Prepaids and other current assets $ 4,605
$ (604 ) $ 4,001
Other non-current assets 11,490
(1,120 ) 10,370
Total Assets $ 130,840
$ (1,724 ) $ 129,116
Deferred revenues, current portion 28,406
8,689
37,095
Deferred revenue, net of current portion 58,110
(11,644 ) 46,466
Total Liabilities 111,355
(2,955 ) 108,400
Accumulated Deficit (170,813 ) 1,231
(169,582 )
Total stockholders' equity 19,485
1,231
20,716
Total liabilities and stockholders' equity $ 130,840
$ (1,724 ) $ 129,116

Three Months Ended June 30, 2019 Six Months Ended June 30, 2019
As Reported, ASC 606 Adjustments Adjusted Balance, ASC 605 As Reported, ASC 606 Adjustments Adjusted Balance, ASC 605
Condensed Consolidated Statement of Operations Data (in thousands):
Revenue $ 5,332
$ (1,199 ) $ 4,133
$ 13,877
$ (522 ) $ 13,355
General and administrative expenses 4,189
(39 ) 4,150
9,121
(112 ) 9,009
Loss from operations (12,230 ) (1,238 ) (13,468 ) (22,913 ) (634 ) (23,547 )
Loss before income taxes (11,758 ) (1,238 ) (12,996 ) (22,106 ) (634 ) (22,740 )
Net loss $ (11,758 ) $ (1,238 ) $ (12,996 ) $ (22,106 ) $ (634 ) $ (22,740 )
Comprehensive loss $ (12,409 ) $ (1,238 ) $ (13,647 ) $ (21,831 ) $ (634 ) $ (22,465 )

~~The application of ASC 606 did not have an impact on the Company’s net cash used in operating activities~~financial statements for the six months ended June 30, 2019 but did result in offsetting adjustments to net loss, change in other current and non-current assets, and the change in deferred revenue presented within the condensed consolidated statements of cash flows for that period.2020 (in thousands):

~~Operating Leases~~


	Six Months Ended June 30, 2019
	Previously reported		ASC 842 Adjustment during the period		As adjusted
Operating activities:
Net loss	$	(22,106)	$	—	$	(22,106)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation	208		—		208
Right-of-use asset amortization	—		215		215
Stock-based compensation	2,742		—		2,742
Deferred rent expense	588		(588)		—
Other non-cash transactions	(151)		—		(151)
Changes in operating assets and liabilities	(7,122)		373		(6,749)
Net cash used in operating activities	$	(25,841)	$	—	$	(25,841)

The Company ~~leases its office~~determines if an arrangement is a lease at inception. The Company’s contracts are determined to contain a lease within the scope of ASC 842 when all of the following criteria based on the specific circumstances of the arrangement are met: (1) there is an identified asset for which there are no substantive substitution rights; (2) the Company has the right to obtain substantially all of the economic benefits from the identified asset; and ~~laboratory facilities~~(3) the Company has the right to direct the use of the identified asset.

At the commencement date, operating lease liabilities and ~~certain~~their corresponding right-of-use assets are recorded based on the present value of future lease payments over the expected lease term. The Company’s lease agreements ~~contain free~~do not provide an implicit rate. As a result, the Company utilizes an estimated incremental borrowing rate to discount lease payments, which is based on the rate of interest the Company would have to pay to borrow a similar amount on a collateralized basis over a similar term and based on observable market data points. Certain adjustments to the right-of-use asset may be required for items such as initial direct costs paid or ~~escalating rent payment provisions. The Company recognizes rent expense under such leases~~lease incentives received. Operating lease cost is recognized over the expected term on a straight-line ~~basis over~~basis.

The Company typically only includes an initial lease term in its assessment of a lease agreement. Options to renew a lease are not included in the Company’s assessment unless there is reasonable certainty that the Company will renew. The expected lease term ofincludes noncancelable lease periods and, when applicable, periods covered by an option to extend the lease if the Company is reasonably certain to exercise that option, as well as periods covered by an option to terminate the lease if the Company is reasonably certain not to exercise that option.

Assumptions made by the Company at the commencement date are re-evaluated upon occurrence of certain events, including a lease modification. A lease modification results in a separate contract when the modification grants the lessee an additional right of use not included in the original lease and when lease payments increase commensurate with the ~~difference between~~standalone price for the ~~expense and the payments recorded as deferred rent on the consolidated balance sheets. Lease renewal periods are considered on~~additional right of use. When a ~~lease-by-lease basis~~lease modification results in ~~determining the lease term. Funding of leasehold improvements by the Company’s landlord are~~a separate contract, it is accounted for in the same manner as a ~~tenant improvement allowance and are amortized as a reduction of rent expense over the term of the~~new lease. ~~Leasehold improvements are amortized on a straight-line basis over the shorter of the useful life or the remaining lease term.~~

Recent Accounting Pronouncements Not Yet Adopted

In ~~February~~June 2016, the FASB issued ~~Accounting Standards Update,~~ ASU No. 2016-13, Financial Instruments - Credit Losses(Topic 326): Measurement of Credit Losses on Financial Statements, or ASU 2016-13. ASU 2016-13 significantly changes the impairment model for most financial assets and certain other instruments. The new standard requires that expected credit losses relating to financial assets measured on an amortized cost basis and available-for-sale debt securities be recorded through an allowance for credit losses. It also limits the amount of credit losses to be recognized for available-for-sale debt securities to the amount by which carrying value exceeds fair value, and requires the reversal of previously recognized credit losses if fair value increases. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial asset(s) to present the net carrying value at the amount expected to be collected on the financial asset.

Subsequently, in November 2018 the FASB issued ASU No. ~~2016-2,~~ ~~Leases (Topic 842)~~2018-19, Codification Improvements to Topic 326, Financial Instruments-Credit Losses, or ASU ~~2016-2. Subsequently,~~2018-19, which clarifies codification and corrects unintended application of the guidance. In November 2019, the FASB issued ASU No. 2019-11, Codification Improvements to Topic 326, Financial Instruments-Credit

Losses, or ASU 2019-11 which clarifies or addresses specific issues about certain aspects of ASU 2016-13. In November 2019 the FASB also issued ASU ~~2019-01,~~ No. 2019-10, Financial Instruments-Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842): Effective Dates, orASU ~~2019-01:~~ ~~Codification Improvements~~,2019-10, which ~~updated codification language under~~delays the ~~standard. Under~~effective date of ASU 2016-13 by three years for certain smaller reporting companies such as the ~~amendments~~Company. The guidance in ASU 2016-2, lessees will be required to recognize (i) a lease liability, which is a lessee's obligation to make lease payments arising from a lease, measured on a discounted basis and (ii) a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term for all leases (with the exception of short-term leases) at the commencement date. This guidance2016-13 is effective for ~~public emerging growth companies, like~~ the Company for financial statements issued for fiscal years beginning after December 15, ~~2019 including~~2022 and interim periods within those fiscal ~~years. Early~~years, with early adoption is permitted. The Company anticipates an effective date of adoption for this standard in the fourth quarter of 2019, retroactive to January 1, 2019, when the Company anticipates losing emerging growth company status. The Company has begun to assess the current state of accounting for leases, to catalog all current leases effected and to review all vendor contracts for the potential existence of a lease in order to understand the gaps between the current state and required future state and to implement the new processes and controls required. The Company currently expects that adoption of this standard will have a material increase on both total assets and liabilities in its condensed consolidated financial statements based upon the Company's current leasing obligations.

~~In November 2018, the FASB issued ASU No. 2018-18,~~ ~~Collaborative Arrangements (Topic 808):Clarifying the Interaction between Topic 808 and Topic 606,~~ orASU 2018-18. ASU 2018-18 makes targeted improvements to generally accepted accounting principles for collaborative arrangements, including: (i) clarification that certain transactions between collaborative arrangement participants should be accounted for as revenue under ASC 606 when the collaborative arrangement participant is a customer in the context of a unit of account, (ii) adding unit-of-account guidance in Topic 808 to align with the guidance in ASC 606, and (iii) a requirement that in a transaction with a collaborative arrangement participant that is not directly related to sales to third parties, presenting the transaction together with revenue recognized under ASC 606 is precluded if the collaborative arrangement participant is not a customer. This guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within that fiscal year. The Company is currentlystill evaluating the impact of the adoption ~~if any, that~~of this ~~standard may have on its condensed consolidated financial statements.~~

standard.

The Company has considered other recent accounting pronouncements and concluded that they are either not applicable to the business or that the effect is not expected to be material to the unaudited condensed consolidated financial statements as a result of future adoption.

3. Revenue

General

The Company has not generated revenue from product sales. The Company has generated revenue from contracts with customers ~~(option, license~~ and revenue from collaboration ~~agreements),~~agreements, which include upfront payments for licenses or options to obtain licenses, payments for research and development services and milestone payments.

During the three and six months ended June 30, ~~2019~~2020 and ~~2018, respectively, the Company recognized revenues as follows (in thousands):~~

Three Months Ended June 30 Six Months Ended June 30
2019 2018 2019 2018
Revenue from contracts with customers $ 4,934
$ 11,224
$ 12,468
$ 14,668
Collaboration revenue (ASC 808) 398
467
1,409
1,084
Other revenues —
—
—
91
Total Revenue $ 5,332
$ 11,691
$ 13,877
$ 15,843

~~Included in the revenue from contracts with customers for the three and six months ended June 30,~~ 2019, ~~was $2.4 million and $6.5 million, respectively, that was included in the aggregated deferred liability balances at December 31, 2018.~~

~~During the three and six months ended June 30, 2019 and 2018,~~ respectively, the Company recognized revenue from the following strategic partnerships and other license agreements (in thousands):


	Three Months Ended June 30,						Six Months Ended June 30,
	2020		2019		2020		2019
Seattle Genetics	$	8,512	$	504	$	8,960	$	1,429
AstraZeneca	2,334		3,888		5,045		9,908
Servier	400		940		10,502		2,540
Total Revenue	$	11,246	$	5,332	$	24,507	$	13,877

Three Months Ended June 30 Six Months Ended June 30
2019 2018 2019 2018
Seattle Genetics $ 504
$ 2,425
$ 1,429
$ 2,731
AstraZeneca 3,888
6,390
9,908
8,937
Servier 940
1,419
2,540
2,627
Other —
1,457
—
1,548
Total Revenue $ 5,332
$ 11,691
$ 13,877
$ 15,843

Under the Company´s existing strategic partnerships and other license agreements, the Company could receive the following potential milestone payments (in millions):


	Research, Development, Regulatory & Commercial Milestones		Sales Milestones
AstraZeneca	$	1,111	$	960
Servier	682		605
Seattle Genetics	764		450
Total potential milestone payments	$	2,557	$	2,015

Research, Development & Commercial Milestones Sales Milestones
Seattle Genetics $ 769
$ 450
AstraZeneca 1,111
960
Servier 984
892
Total potential milestone payments $ 2,864
$ 2,302
Strategic Partnerships

Seattle Genetics

On February 8, 2018, the Company entered into a license and collaboration agreement, or the Seattle Genetics Collaboration Agreement, and a non-exclusive Anticalin platform technology license agreement, or the Seattle Genetics Platform License, and together with the Seattle Genetics Collaboration Agreement, the Seattle Genetics Agreements, with Seattle Genetics, Inc., or Seattle Genetics, pursuant to which the parties will develop multiple targeted bispecific IO treatments for solid tumors and blood cancers.

Under the terms of the Seattle Genetics Agreements, the companies will pursue multiple antibody-Anticalin fusion proteins during the research phase. The Seattle Genetics Agreements provide Seattle Genetics a base option to select up to ~~three~~3 programs for further development. Prior to the initiation of a pivotal trial, the Company may opt into global co-development and U.S.

commercialization of the second program and share in global costs and profits on an equal basis. Seattle Genetics will solely develop, fund and commercialize the other ~~two~~2 programs. Seattle Genetics may also decide to select additional

candidates from the initial research phase for further development in return for the payment to usthe Company of additional fees, milestone payments and royalties.

The Seattle Genetics Platform License grants Seattle Genetics a non-exclusive license to certain intellectual property related to the Anticalin platform technology.

Upon signing the Seattle Genetics Agreements, Seattle Genetics paid the Company a $30.0 million upfront fee and an additional $4.9 million was estimated to be paid for research and development services as reimbursement to the Company through the end of the research term. In addition, the Company may receive tiered royalties on net sales up to the low double-digits and up to $1.2 billion in total success-based research, development, commercial and sales milestones payments across the product candidates, depending on the successful development and commercialization of those candidates. If Seattle Genetics exercises its option to select additional candidates from the initial research phase for further development, payment to Pieris of additional fees, milestone payments and royalties would result.

The term of each of the Seattle Genetics Agreements ends upon the expiration of all of Seattle ~~Genetics’s~~Genetics’ payment obligations under each such agreement. The Seattle Genetics Collaboration Agreement may be terminated by Seattle Genetics on a product-by-product basis for convenience beginning 12 months after its effective date upon 90 days' notice or, for any program where a pivotal study has been initiated, upon 180 days' notice. Any program may be terminated at Seattle ~~Genetics's~~Genetics' option. If any program is terminated by Seattle Genetics after a pre-defined pre-clinical stage, the Company will have full rights to continue such program. If any program is terminated by Seattle Genetics prior to such pre-defined pre-clinical stage, the Company will have the right to continue to develop such program, but will be obligated to offer a co-development option to Seattle Genetics for such program. The Seattle Genetics Collaboration Agreement may also be terminated by Seattle Genetics or the Company for an uncured material breach by the other party upon 90 days' notice, subject to extension for an additional 90 days if the material breach relates to diligence obligations and subject, in all cases, to dispute resolution procedures. The Seattle Genetics Collaboration Agreement may also be terminated due to the other party’s insolvency and may in certain instances, including for reasons of safety, be terminated on a product-by-product basis. Each party may also terminate the Seattle Genetics Agreements if the other party challenges the validity of any patents licensed under the Seattle Genetics Agreements, subject to certain exceptions. The Seattle Genetics Platform License will terminate upon termination of the Seattle Genetics Collaboration Agreement, whether in its entirety or on a product-by-product basis.

The Company determined that the Seattle Genetics Agreements should be combined and evaluated as a single arrangement under ASC 606 as they were executed on the same date. The arrangement with Seattle Genetics provides for the transfer of the following goods or services: (i) ~~three~~3 candidate research licenses that each consist of a non-exclusive platform technology license, a co-exclusive candidate research license, and research and development services, (ii) research, development and manufacturing services associated with each candidate research license, (iii) participation on various governance committees, and (iv) ~~two~~2 antibody target swap options which were assessed as material rights.

Management evaluated all of the promised goods or services within the contract and determined which such goods and services were separate performance obligations. The Company determined that the licenses granted, at arrangement inception, should be combined with the research and development services to be provided for the related antibody target programs as they are not capable of being distinct. A third party would not be able to provide the research and development services due to the specific nature of the intellectual property and knowledge required to perform the services, and Seattle Genetics could not benefit from the licenses without the corresponding services. The Company determined that the participation on the various governance committees was distinct as the services could be performed by an outside party.

As a result, management concluded there ~~are six~~were 6 separate performance obligations at the inception of the Seattle Genetics Agreements: (i) ~~three~~3 combined performance obligations, each comprised of a non-exclusive platform technology license, a co-exclusive candidate research license, and research and development services for the first three approved Seattle Genetics antibody target programs, (ii) ~~two~~2 performance obligations each comprised of a material right for an antibody target swap option for the first and the second approved Seattle Genetics antibody target for no additional consideration, and (iii) ~~one~~1 performance obligation comprised of the participation on the various governance committees.

The Company allocated consideration to the performance obligations based on the relative proportion of their standalone selling prices. The Company developed standalone selling prices for licenses by applying a risk adjusted, net present value, estimate of future potential cash flows approach, which included the cost of obtaining research and development services at arm’s length from a third-party provider, as well as internal full-time equivalent costs to support these services. The Company developed the standalone

selling price for committee participation by using management’s estimate of the anticipated participation hours multiplied by a market rate for comparable participants.

The transaction price at inception is comprised of fixed consideration of $30.0 million in upfront fees and variable consideration of $4.9 million of estimated research and development services to be reimbursed as research and development occurs through the research term. The $30.0 million upfront fee, which represents the fixed consideration in the transaction price, was allocated to each of the performance obligations based on the relative proportion of their standalone selling prices. The $4.9 million in variable consideration related to the research and development services is allocated specifically to the ~~three~~3 target program performance obligations based upon the budgeted services for each program.

The amounts allocated to the performance obligations for the ~~three~~3 research programs will be recognized on a proportional performance basis through the completion of each respective estimated research term of the individual research programs. The amounts allocated to the material right for the antibody target swap option will be recognized either at the time the material right expires or, if exercised, on a proportional performance basis over the estimated research term for that program. The amounts allocated to the participation on each of the committees will be recognized straight-line over the anticipated research term for all research programs. As of June 30, ~~2019,~~2020, there was ~~$26.1~~$19.8 million of aggregate transaction price allocated to remaining performance obligations.

In June 2020, Seattle Genetics and the Company entered into amendments to the Seattle Genetics Agreements, or together, the Amendment. The Amendment extended the deadline for Seattle Genetics to nominate a second and third antibody target. As a result of the Amendment, which completed the obligations under the research term for the first antibody target, the Company recorded $4.2 million of previously deferred revenue for the three and six months ended June 30, 2020. The Company also recorded $5.0 million of milestone revenue due from Seattle Genetics during the quarter ended June 30, 2020, as it was no longer deemed probable that a significant reversal of revenue would occur, and the remaining performance obligations on first antibody target were completed.

Under the Seattle Genetics Agreements, the Company is eligible to receive other various research, development, commercial and sales milestones. There is uncertainty that the events to obtain the research and development milestones will be achieved given the nature of clinical development and the stage of the Company’s technology. ~~The~~With the exception of the previously discussed achieved milestone, the Company has ~~thus~~ determined that all other research and development milestones will be constrained until it is deemed probable that a significant revenue reversal will not occur.

As of June 30, ~~2019,~~2020, there ~~is $6.6~~were $1.4 million and ~~$15.3~~$15.2 million of current and non-current deferred revenue, respectively, related to the Seattle Genetics Agreements.

AstraZeneca

On May 2, 2017, the Company entered into a license and collaboration agreement, or the AstraZeneca Collaboration Agreement, and a non-exclusive Anticalin platform technology license agreement, or AstraZeneca Platform License, and together with the AstraZeneca Collaboration Agreement, the AstraZeneca Agreements, with AstraZeneca AB, or AstraZeneca, which became effective on June 10, 2017, following expiration of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976. Under the AstraZeneca Agreements the parties will advance several novel inhaled Anticalin proteins.

In addition to the Company’s lead inhaled drug candidate, ~~PRS-060,~~PRS-060/AZD1402, or the AstraZeneca Lead Product, the Company and AstraZeneca will also collaborate to progress ~~four~~4 additional novel Anticalin proteins against undisclosed targets for respiratory diseases, or the AstraZeneca Collaboration Products, and together with the AstraZeneca Lead Product, the AstraZeneca Products. The Company is responsible for advancing the AstraZeneca Lead Product through its phase 1 study, with the associated costs funded by AstraZeneca. The parties will collaborate thereafter to conduct a phase 2a study in asthma patients, with AstraZeneca continuing to fund development costs. After completion of ~~the~~a phase 2a study, Pieris has the option to co-develop the AstraZeneca Lead Product and also has ~~the~~a separate option to co-commercialize the AstraZeneca Lead Product in the United States. For the AstraZeneca Collaboration Products, the Company will be responsible for the initial discovery of the novel Anticalin proteins, after which AstraZeneca will take the lead on continued development of the AstraZeneca Collaboration Products. The Company has the option to co-develop ~~two~~2 of the ~~four~~4 AstraZeneca Collaboration Products beginning at a pre-defined preclinical stage and would also have the option to co-commercialize these ~~two~~2 programs in the United States, while AstraZeneca will be responsible for development and commercialization of the other programs worldwide.

The term of each of the AstraZeneca Agreements ends upon the expiration of all of AstraZeneca’s payment obligations under such agreement. The AstraZeneca Collaboration Agreement may be terminated by AstraZeneca in its entirety for convenience beginning 12 months after its effective date upon 90 days’ notice or, if the Company has obtained marketing approval for the marketing and sale of a product, upon 180 days’ notice. Each program may be terminated at AstraZeneca’s option; if any program is terminated by AstraZeneca, the Company will have full rights to such program. The AstraZeneca Collaboration

Agreement may also be terminated by AstraZeneca or the Company for material breach upon 180 days’ notice of a material breach (or 30 days with respect to payment breach), provided that the applicable party has not cured such breach by the permitted cure period (including an additional 180 days if the breach is not susceptible to cure during the initial 180-day period) and dispute resolution procedures specified in the agreement have been followed. The AstraZeneca Collaboration Agreement may also be terminated due to the other party’s insolvency and may in certain instances be terminated on a product-by-product and/or country-by-country basis. Each party may also terminate an AstraZeneca Agreement if the other party challenges the validity of patents related to certain intellectual property licensed under such AstraZeneca Agreement, subject to certain exceptions for infringement suits, acquisitions and ~~newly-~~

~~acquired~~newly-acquired licenses. The AstraZeneca Platform License will terminate upon termination of the AstraZeneca Collaboration Agreement, on a product-by-product and/or country-by-country basis.

At inception, AstraZeneca is granted the following licenses: (i) research and development license for the AstraZeneca Lead Product, (ii) commercial license for the AstraZeneca Lead Product, (iii) individual research licenses for each of the ~~four~~4 AstraZeneca Collaboration Products, (iv) individual commercial licenses for each of the ~~four~~4 AstraZeneca Collaboration Products, and (v) individual non-exclusive platform technology licenses for the AstraZeneca Lead Product and the ~~four~~4 AstraZeneca Collaboration Products. AstraZeneca will be granted individual development licenses for each of the ~~four~~4 AstraZeneca Collaboration Products upon completion of the initial discovery of Anticalin proteins.

The collaboration will be managed on an overall basis by a Joint Steering Committee, or JSC, formed by an equal number of representatives from the Company and AstraZeneca. In addition to the JSC, the AstraZeneca Collaboration Agreement also requires each party to designate an alliance manager to facilitate communication and coordination of the parties' activities under the agreement, and further requires participation of both parties on a joint development committee, or JDC, and a commercialization committee. The responsibilities of these committees vary, depending on the stage of development and commercialization of each product.

Under the AstraZeneca Agreements, the Company received an upfront, non-refundable payment of $45.0 million. In addition, the Company will receive payments to conduct a phase 1 clinical study for the AstraZeneca Lead Product. The Company is also eligible to receive research, development, commercial, sales milestone payments and royalty payments. The Company may receive tiered royalties on sales of potential products commercialized by AstraZeneca and for co-developed products, gross margin share on worldwide sales equal dependent on the Company’s level of committed investment.

Prior to the adoption of ASC 606, the budgeted research and development services for the AstraZeneca Lead Product increased and were approved by the JSC. The increases included additional phase 1 services as well as the addition of certain phase 2a services. The Company determined that these increases were contract modifications. Upon the adoption of ASC 606, the Company reflected the aggregate effects of these modifications as of the last modification date.

The Company determined that the AstraZeneca Agreements should be combined and evaluated as a single arrangement under ASC 606 as they were executed on the same date. The arrangement with AstraZeneca, including the impact of any modifications, provides for the transfer of the following goods and services: (i) ~~five~~5 non-exclusive platform technology licenses, (ii) research and development license for the AstraZeneca Lead Product, (iii) commercial license for the AstraZeneca Lead Product, (iv) development and manufacturing services for the AstraZeneca Lead Product (or the phase 1 services), (v) technology transfer services for the AstraZeneca Lead Product, (vi) research services related to the AstraZeneca Lead Product, (vii) participation on each of the committees, (viii) ~~four~~4 research licenses for the AstraZeneca Collaboration Products, (ix) ~~four~~4 commercial licenses for the AstraZeneca Collaboration Products, (x) research services for the AstraZeneca Collaboration Products and (xi) certain phase 2a services for the AstraZeneca Lead Product. Additionally, as the development licenses on the ~~four~~4 AstraZeneca Collaboration Products may be granted at a discount in the future, the Company determined such discounts should be assessed as material rights at inception.

Management evaluated all of the promised goods or services within the contract and determined which such goods and services

were separate performance obligations. The Company determined that the licenses granted for the AstraZeneca Lead Product at the inception of the arrangement should be combined with the research services related to the AstraZeneca Lead Product and the licenses granted for the AstraZeneca Collaboration Products should be combined with the research services for the AstraZeneca Collaboration Products, as the licenses are not capable of being distinct. A third party would not be able to provide the research and development services, due to the specific nature of the intellectual property and knowledge required to perform the services, and AstraZeneca could not benefit from the licenses without the corresponding services. The Company also determined that each of the phase 1 services and the phase 2a services for the AstraZeneca Lead Product were distinct and that the participation on the various committees was also distinct as all of the phase 1 services, phase 2a services and the committee services could be performed by an outside party. The Company determined that the commercial licenses for the AstraZeneca Collaboration Products granted at the inception of the arrangement should be combined with the development licenses for the AstraZeneca Collaboration Products as the company would not benefit from the commercial license without the ability to develop each product.

As a result, management concluded that there were 16 performance obligations: (i) combined performance obligation comprised of a non-exclusive platform technology license, research and development license, and commercial licenses for the AstraZeneca Lead Product and research services for the AstraZeneca Lead Product, (ii) combined performance obligation

comprised of development and manufacturing services, and technology transfer services for the AstraZeneca Lead Product, (iii) committee participation, (iv-vii) ~~four~~4 combined performance obligations each comprised of a non-exclusive platform technology license,

research licenses, and research services for each AstraZeneca Collaboration Product, (viii-xi) four performance obligations comprised of a material right to acquire the development licenses granted for the AstraZeneca Collaboration Products, (xii-xv) four performance obligations comprised of the commercial licenses granted for the AstraZeneca Collaboration Products and (xvi) phase 2a services.

The Company allocated consideration to the performance obligations based on the relative proportion of their standalone selling prices. The Company developed standalone selling prices for licenses and corresponding research services by applying a risk adjusted, net present value, estimate of future potential cash flow approach, which included the cost of obtaining research services at arm’s length from a third-party provider, as well as internal full-time equivalent costs to support these services. The Company developed its standalone selling price for development and manufacturing services and technology transfer services for the AstraZeneca Lead Product using estimated internal and external costs to be incurred.

The Company developed its standalone selling price for committee participation by using management’s estimate of the anticipated participation hours multiplied by a market rate for comparable participants.

The Company developed its standalone selling price for the commercial licenses and material rights granted on the development licenses by probability weighting multiple cash flow scenarios using the income approach.

The transaction price iswas comprised of fixed consideration of $45.0 million in upfront fees and variable consideration of (i) $14.2 million in estimated phase 1 services, (ii) $12.5 million in milestone payments achieved upon the initiation of a phase 1 study in December 2017, and (iii) $4.7 million in estimated phase 2a services. The $45.0 million upfront fee, which represents the fixed consideration in the transaction price, was allocated to each of the performance obligations based on the relative proportion of their standalone selling prices. Variable consideration of $14.2 million is related to the phase 1 services and will be allocated entirely to the performance obligation to which they relate. Variable consideration of $12.5 million related to the phase 1 trial milestone was allocated by relative selling price to the combined performance obligation comprised of a non-exclusive platform technology license, research and development license and commercial licenses for the AstraZeneca Lead Product and research services for the AstraZeneca Lead Product, and the combined performance obligation comprised of development and manufacturing services and technology transfer services for the AstraZeneca Lead Product performance obligations. Variable consideration of $4.7 million for phase 2a services was allocated specifically to the related performance obligation.

The amounts allocated to the license performance obligation for the AstraZeneca Lead Product and the ~~four~~4 performance obligations for the ~~four~~4 research licenses for AstraZeneca Collaboration Products will be recognized on a proportional performance basis as the activities are conducted over the life of the arrangement. The amounts allocated to the performance obligation for phase 1 services, technology transfer services for the AstraZeneca Lead Product will be recognized on a proportional performance basis over the estimated term of development through phase 2a study. The amounts allocated to the performance obligation for phase 2a services for the AstraZeneca Lead Product will be recognized on a proportionate performance basis over an estimated term of 12 months. The amounts allocated to the performance obligation for participation on each of the committees will be recognized on a straight-line basis over the expected term of development of the AstraZeneca Lead Product and the AstraZeneca Collaboration Products. The term of performance is approximately five years. The amounts allocated to the four performance obligations for the material rights to acquire a development license and the four performance obligations for commercial licenses for the AstraZeneca Collaboration Products will be recognized upon exercise of the specific material right and delivery of each of the development licenses. As of June 30, ~~2019,~~2020, there was ~~$36.2~~$23.2 million of aggregate transaction price allocated to remaining performance obligations.

Additionally, the Company evaluated payments required to be made between both parties as a result of the shared development costs of the AstraZeneca Lead Product and the ~~two~~2 AstraZeneca Collaboration Products for which the Company has a co-development option. The Company will classify payments made as a reduction of revenue and will classify payments received as revenue in the period they are earned.

Under the AstraZeneca Agreements, the Company is eligible to receive various research, development, commercial and sales milestones. There is uncertainty that the events to obtain the research and development milestones will be achieved given the nature of clinical development and the stage of the Company’s technology. The Company has thus determined that all research and development milestones, other than the phase 1 initiation milestone achieved in December 2017 and included in the impact of adoption of ASC 606, will be constrained until it is deemed probable that a significant revenue reversal will not occur.

As of June 30, ~~2019,~~2020, there ~~is $12.1~~were $1.1 million and ~~$18.2~~$17.2 million of current and non-current deferred revenue, respectively, related to the AstraZeneca Agreements.

The Company incurred $1.6 million of third-party success fees to obtain the contract with AstraZeneca. Upon adoption of ASC 606, the Company capitalized $1.1 million in accordance with ASC 340. As of June 30, ~~2019,~~2020, the remaining balance of the asset recognized from transaction costs to obtain the AstraZeneca contract ~~is $1.0~~was $0.6 million. Amortization during the three ~~months ended June 30, 2019 was immaterial~~ and ~~during the~~ six months ended June 30, ~~2019~~2020 was ~~$0.1 million.~~de minimis.

Servier

On January 4, 2017, the Company entered into a license and collaboration agreement, or Servier Collaboration Agreement, and a non-exclusive Anticalin platform license agreement, or Servier Platform License, and together with the Servier Collaboration Agreement, the Servier Agreements, with Les Laboratoires Servier and Institut de Recherches Internationales Servier, or Servier, pursuant to which the Company and Servier ~~will~~agreed to initially pursue ~~five~~5 bispecific therapeutic programs.

~~Five~~NaN committed programs ~~have been~~were initially defined, which may combine antibodies from the Servier portfolio with ~~one~~1 or more Anticalin proteins based on the Company’s proprietary platform to generate innovative IO bispecific drug candidates, or the Collaboration Products. The collaboration may be expanded by up to ~~three~~3 additional therapeutic programs. The Company ~~has~~had the option to co-develop and retain commercial rights in the United States for PRS-332, the initial lead program under the collaboration, or the Initial Lead, and has a similar option on up to three additional programs, ~~beyond PRS-332,~~ or the Co-Development Collaboration Products, while Servier will be responsible for development and commercialization of the other programs worldwide, or the Servier Worldwide Collaboration Products. Each party is responsible for an agreed upon percentage of shared costs, as set forth in the budget for the collaboration plan, and as further discussed below.

The Co-Development Collaboration Products may be jointly developed, according to a collaboration plan, through marketing approval from the U.S. Food and Drug Administration or the European Medicines Agency. Servier Worldwide Collaboration Products may be jointly developed, according to a collaboration plan, through specified preclinical activities, at which point Servier becomes responsible for further development of the Collaboration Product.

At inception, Servier was granted the following licenses: (i) development license for ~~PRS-332,~~the Initial Lead, (ii) commercial license for ~~PRS-332,~~the Initial Lead, (iii) individual research licenses for each of the ~~four~~4 Collaboration Products, and (iv) individual non-exclusive platform technology licenses for the Initial Lead and for each of ~~PRS-332 and four~~the 4 Collaboration Products. Upon achievement of certain development activities, specified by the collaboration for each Servier Agreement, Servier will be granted a development license and a commercial license. For ~~PRS-332~~the Initial Lead and the Co-Development Collaboration Products, the licenses granted are with respect to the entire world except for the United States. For Servier Worldwide Collaboration Products, the licenses granted are with respect to the entire world.

The Servier Agreements ~~will be~~are managed on an overall basis by a joint executive committee, or JEC, formed by an equal number of members from the Company and Servier. Decisions by the JEC will be made by ~~consensus,~~consensus; however, in the event of a disagreement, each party will have final-decision making authority as it relates to the applicable territory in which such party has commercialization rights for the applicable product. In addition to the JEC, the Servier Collaboration Agreement requires the participation of both parties on: (i) a JSC, (ii) a JDC, (iii) a joint intellectual property committee, or JIPC, and (iv) a joint research committee, or JRC. The responsibilities of these committees vary, depending on the stage of development and commercialization of ~~PRS-332 and each of~~ the Collaboration Products.

For ~~PRS-332~~the Initial Lead and Co-Development Collaboration Products, the Company and Servier are responsible for an agreed upon percent of the shared costs required to develop the products through commercialization. In the event that the Company fails to exercise ~~their~~its option to co-develop the Co-Development Collaboration Products, Servier has the right to continue with the development and will be responsible for all costs required to develop the products through commercialization.

Under the Servier Agreements, the Company received an upfront, non-refundable payment of €30.0 million (approximately $32.0 million). In addition, the Company is eligible to receive research, development, commercial and sales milestone payments as well as tiered royalties up to low double digits on the sales of commercialized products in the Servier territories. The Company achieved ~~two~~2 preclinical milestones under the program, ~~one~~1 in December 2018 for €0.5 million (approximately $0.6 million) and another in February 2019 for €1.5 million (approximately $1.7 million), both of which became billable on their respective achievement dates.

The initial research collaboration term, as it relates to ~~PRS-332~~the Initial Lead and Collaboration Products, shall continue for three years from the effective date of the Servier agreements and may be mutually extended for ~~two~~2 one-year terms consecutively applied.

The term of each Servier Agreement ends upon the expiration of all of Servier’s payment obligations under such Servier Agreement. The Servier Agreements may be terminated by Servier for convenience beginning 12 months after their effective date upon 180 days’ notice. The Servier Agreements may also be terminated by Servier or the Company for material breach upon 90

days’ or 120 days’ notice ~~of a material breach, with respect to~~under the Servier Collaboration Agreement and the Servier Platform License, respectively, provided that the applicable party has not cured such breach by the applicable 90-day or 120-day permitted cure period, and dispute resolution procedures specified in the applicable Servier Agreement have been followed. The Servier Agreements may also be terminated due to the other party’s insolvency or for a safety issue and may in certain instances be terminated on a product-by-product and/or country-by-country basis. The Servier Platform License will terminate upon termination of the Servier Collaboration Agreement, on a product-by-product and/or country-by-country basis.

As the Company and Servier are considered to be active participants in the Servier Agreements and are exposed to significant risks and rewards, certain units of account within the Servier Agreements are within the scope of ASC 808. The arrangement with Servier provides for the transfer of the following goods and services: (i) ~~five~~5 non-exclusive platform technology licenses, ~~(ii)~~a development license, ~~for PRS-332, (iii)~~a commercial license ~~for PRS-332, (iv)~~and research and development services for ~~PRS-332, (v)~~the Initial Lead, (ii) participation on each of the committees, ~~(vi) four~~(iii) 4 research licenses for Collaboration Products, and ~~(vii)~~(iv) research and development services for the Collaboration Products. Additionally, as the development and commercial licenses on the ~~four~~4 Collaboration Products may be granted at a discount in the future, the Company determined such discounts should be assessed as material rights at inception.

Management evaluated all of the promised goods or services within the contract and determined which ~~such~~ goods and services

were separate performance obligations. The Company determined that the licenses granted, at ~~arrangement~~the inception of the Servier collaboration, should be combined with the research and development services to be provided for ~~PRS-332~~the Initial Lead and Collaboration Products, over the term of the Servier Agreements, as ~~the~~such licenses are not capable of being distinct. A third party would not be able to provide the research and development services, due to the specific nature of the intellectual property and knowledge required to perform the services, and Servier could not benefit from the licenses without the corresponding services. The Company determined that the participation on the various committees was distinct as the services could be performed by an outside party.

As a result, management concluded that there ~~are 14~~were 10 performance obligations at the inception of the Servier Agreements. The following performance obligations are within the scope of ASC 808: (i) combined performance obligation comprised of a non-exclusive platform technology license, commercial license, development license and research and development services for ~~PRS-332,~~the Initial Lead, (ii) ~~four~~2 separate performance obligations each comprised of a combined non-exclusive platform technology license, research license and research and development services for each ~~Co-Developed~~Co-Development Collaboration Product, (iii) ~~one~~1 performance obligation comprised of participation in the various governance committees, and (iv) ~~four~~2 combined performance obligations comprised of the development and commercial licenses granted for the ~~Co-Developed~~Co-Development Collaboration Products (and corresponding discounts) upon the achievement of specified preclinical activities, resulting in material rights. Revenue recognized associated with these performance obligations are presented as Collaboration Revenue within the Statement of Operations. The following performance obligations are within the scope of ASC 606: (i) two separate performance obligations each comprised of a combined non-exclusive platform technology license, research license and research and development services for each Servier Worldwide Collaboration Product, and (ii) two combined performance obligations comprised of the development and commercial licenses granted for the Servier Worldwide Collaboration Products (and corresponding discounts) upon the achievement of specified preclinical activities, resulting in material rights. Revenue recognized associated with these performance obligations are presented as Customer Revenue within the Statement of Operations.

The Company allocated consideration to the performance obligations based on the relative proportion of their standalone selling prices. The Company developed its standalone selling prices for licenses by applying a risk adjusted, net present value, estimate of future potential cash flows approach, which included the cost of obtaining research and development services at arm’s length from a third-party provider, as well as internal full-time equivalent costs to support these services.

The Company developed its estimate of standalone selling price for committee participation by using management’s estimate of the anticipated participation hours multiplied by a market rate for comparable participants.

The Company developed its estimate of standalone selling price for the material rights granted on the development and commercial licenses granted for the Collaboration Products by probability weighting multiple cash flow scenarios using the income approach.

The transaction price at inception is comprised of the fixed upfront fee of €30.0 million (approximately $32.0 million) and was allocated to the performance obligations based on the relative proportion of their standalone selling prices.

The amounts allocated to the performance obligation for ~~PRS-332~~the Initial Lead and the ~~four~~4 performance obligations for the ~~four~~4 research and development licenses for Collaboration Products will be recognized on a proportional performance basis as the activities are conducted over the life of the arrangement. The term of the performance at inception of the Servier Agreements for ~~PRS-332~~the Initial Lead and each of the ~~Co-Developed~~Co-Development Collaboration Products may be through approval of certain regulatory bodies; a period which could be many years. The term of the performance for each of the other two Servier Worldwide Collaboration Products is through the initial research and collaboration term, plus potential extensions. The amounts allocated to the performance obligation for participation on each of the committees will be recognized on a straight-line basis over the anticipated performance period over the entirety of the arrangement with Servier. The amounts allocated to the four performance obligations for the material rights to acquire

development and commercial licenses for the ~~Co-Developed~~Co-Development Collaboration Products are granted in the future will be recognized over time upon delivery of each of the licenses through marketing approval. The amounts allocated to the four performance obligations for the material rights to acquire development and commercial licenses for the Servier Developed Collaboration Products are granted in the future will be recognized upon delivery of each of the licenses. As of June 30, ~~2019,~~2020, there was ~~$31.4~~$10.9 million of aggregate transaction price allocated to remaining performance obligations.

Additionally, the Company evaluated payments required to be made between both parties as a result of the shared development costs of ~~PRS-332~~the Initial Lead and Collaboration Products. The Company will classify payments made as a reduction of revenue and will classify payments received as revenue, in the period they are earned.

Under the Servier Agreements the Company is eligible to receive various research, development, commercial and sales milestones. There is uncertainty that the events to obtain the research and development milestones will be achieved given the nature of clinical development and the stage of the Company’s technology. The Company has thus determined that all research and development milestones will be constrained until it is deemed probable that a significant revenue reversal will not occur.

In September 2019, Servier notified the Company of its decision to discontinue co-development of PRS-332, a PD-1-LAG-3 bispecific that served as the initial development program under the Pieris-Servier alliance, for strategic reasons. The Company does not presently intend to continue development of PRS-332 but retains full rights to advance the development and commercialization of the product on a world-wide basis in the future.

In February 2020, the research term was extended for another 12 months. The Company has updated the transaction price for the extension for revenue recognition purposes and allocated it ratably over all unsatisfied performance obligations. In March 2020, Servier notified the Company of its decision to discontinue co-development of two earlier preclinical stage programs for strategic reasons based upon an extensive portfolio review. The notification required a 60-day period to complete remaining obligations on the programs, however the Company determined that the material rights to acquire development and commercial licenses for one Co-Development Collaboration Product and for one Servier Developed Collaboration Products lapsed in March 2020 and recognized as revenue $7.1 million of previously deferred revenue associated with these material rights during the three-month period ended March 31, 2020. The parties continue to advance the development of two preclinical programs: PRS-344, a 4-1BB/PD-L1 bispecific designed as a co-development program, and PRS-352, which addresses undisclosed targets and for which Servier has worldwide rights.

As of June 30, ~~2019,~~2020, there ~~is $6.8~~were $5.5 million and ~~$24.6~~$5.4 million of current and non-current deferred revenue, respectively, related to the Servier Agreements.

The Company incurred costs to obtain the contract with Servier. Upon adoption of ASC 606, the Company capitalized $0.5 million of third-party service fees in accordance with ASC 340. As of June 30, ~~2019,~~2020, the remaining balance of the asset recognized from costs to obtain the Servier contract ~~is $0.5~~was $0.1 million.

~~ASKA~~

~~On February 27, 2017~~ Amortization during the Company entered into an exclusive option agreement, or the ASKA Option Agreement, with ASKA Pharmaceutical Co., Ltd., or ASKA, pursuant to which Pieris granted ASKA an option to acquire (1) a non-exclusive license to certain intellectual property rights associated with the Company’s Anticalin platformthree and (2) an exclusive license to certain intellectual property rights specifically related to the Company’s PRS-080 Anticalin protein in order to develop, manufacture, import, sale, export and offer for sale and export any pharmaceutical formulation containing PRS-080, the Company’s PEGylated Anticalin protein targeting hepcidin, or the Licensed Product, in Japan and certain other Asian territories.

Pieris is obliged to use commercially reasonable efforts to complete the phase 2a study for PRS-080 and to submit to ASKA, in writing, the final results of the study when available. Upon receipt, ASKA will have 60 days to evaluate the results of the phase 2a study, or the Evaluation Period. ASKA agreed to notify the Company, in writing, of its decision to exercise its option to acquire rights to the Licensed Product. If the phase 2a study meets the applicable success criteria and ASKA fails to provide notification that it will exercise its option, ASKA shall pay the Company an additional fee within 30 days of the end of the Evaluation Period. If ASKA exercises the option, ASKA and the Company will enter into a separate definitive arrangement governing the future development and commercialization activities.

The Company determined that the completed phase 2a study represents the sole good or service to be transferred, and the only performance obligation under the ASKA Option Agreement for which an upfront payment of $2.75 million was received from ASKA. The $2.75 million fixed upfront payment represents the transaction price at inception. The additional fee due if the phase 2a study meets the applicable success criteria and ASKA fails to provide notification that it will exercise its option represents variable consideration and will be constrained until it is deemed probable that a significant revenue reversal will not occur.

While the completion of the phase 2a study requires the completion of a number of actions, the Company determined that the finalization of the data and evaluation of results of the phase 2a study is the point at which revenue would be recognized. Therefore, no revenue was recognized in connection with this arrangement for the yearssix months ended ~~December 31, 2018 and 2017, respectively. As of~~ June 30, ~~2019, there is $2.9~~2020 was de minimis and $0.1 million, ~~of current deferred revenue related to the ASKA Option Agreement.~~respectively.

In connection with obtaining the contract with ASKA, the Company additionally incurred $0.3 million in third-party service fees which were capitalized in accordance with ASC 340. As of June 30, 2019, the remaining balance of the asset recognized from costs to obtain the ASKA contract is $0.3 million.

Contract Balances

The Company receives payments from its collaboration partners based on payments established in each contract. Upfront payments and fees are recorded as deferred revenue upon receipt or when due until such time as the Company satisfies its performance

obligations under each arrangement. A contract asset is a conditional right to consideration in exchange for goods or services that the Company has transferred to a customer. Amounts are recorded as accounts receivable when the Company’s right is unconditional.

There were no0 additions to deferred revenue during the three ~~and~~months ended June 30, 2020. Additions to deferred revenue were $1.6 million during the six months ended June 30, ~~2019 and the reductions in~~2020. Reductions to deferred revenue ~~of $2.4~~were $3.7 million and ~~$6.5~~$13.8 million for the three and six months, respectively, ~~were a result of ongoing activities to complete performance obligations under the various agreements.~~ended June 30, 2020.

4. Cash, cash equivalents and investments

As of June 30, ~~2019~~2020 and December 31, ~~2018,~~2019, cash, cash equivalents and investments comprised of funds in depository, money market accounts, U.S. treasury securities, asset backed securities and corporate bonds.The following table presents the cash equivalents and investments carried at fair value in accordance with the hierarchy defined in Note 2 (in thousands):


										Total		Quoted prices in active markets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
June 30, 2020									June 30, 2020
Money market funds, included in cash equivalents									Money market funds, included in cash equivalents	$	25,502	$	25,502	$	—	$	—
	Total		Quoted prices in active markets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
June 30, 2019
Money market funds, included in cash equivalents	$	11,429	$	11,429	$	—	$	—
Corporate bonds, included in cash equivalents	2,598		—		2,598		—
Investments - U.S. treasuries	6,592		6,592		—		—		Investments - U.S. treasuries	11,993		11,993		—		—
Investments - Asset-backed securities	10,041		—		10,041		—		Investments - Asset-backed securities	1,569		—		1,569		—
Investments - Corporate bonds	28,149		—		28,149		—		Investments - Corporate bonds	19,350		—		19,350		—
Total	$	58,809	$	18,021	$	40,788	$	—	Total	$	58,414	$	37,495	$	20,919	$	—

December 31, 2018
December 31, 2019									December 31, 2019
Money market funds, included in cash equivalents	$	7,791	$	7,791	$	—	$	—	Money market funds, included in cash equivalents	$	47,384	$	47,384	$	—	$	—
Corporate bonds, included in cash equivalents	10,910		—		10,910		—

Investments - U.S. treasuries	7,518		7,518		—		—		Investments - U.S. treasuries	5,300		5,300		—		—
Investments - Asset-backed securities	5,758		—		5,758		—		Investments - Asset-backed securities	7,950		—		7,950		—
Investments - Corporate bonds	39,964		—		39,964		—		Investments - Corporate bonds	28,644		—		28,644		—
Total	$	71,941	$	15,309	$	56,632	$	—	Total	$	89,278	$	52,684	$	36,594	$	—

Cash equivalents and marketable securities have been initially valued at the transaction price and subsequently valued, at the end of each reporting period, utilizing third party pricing services or other market observable data. The pricing services utilize industry standard valuation models, including both income and market-based approaches and observable market inputs to determine value. The Company validates the prices provided by its third-party pricing services by reviewing their pricing methods and obtaining market values from other pricing sources, as needed. After completing its validation procedures, the Company did not adjust any fair value measurements provided by the pricing services as of June 30, ~~2019.~~2020.

Investments at June 30, ~~2019 consist~~2020 consisted of the following (in thousands):


	Contractual maturity (in days)	Amortized Cost		Unrealized gains		Unrealized losses		Fair Value
Investments
U.S. treasuries	44-170	$	11,944	$	49	$	—	$	11,993
Asset-backed securities	77	1,567		3		(1)		1,569
Corporate bonds	22-132	19,370		20		(40)		19,350
Total		$	32,881	$	72	$	(41)	$	32,912

Contractual maturity
(in days) Amortized Cost Unrealized gains Unrealized losses Fair Value
Investments
U.S. treasuries 62-259 $ 6,587
$ 5
$ —
$ 6,592
Asset-backed securities 15-233 10,050
5
(14 ) 10,041
Corporate bonds 23-242 28,191
8
(50 ) 28,149
Total $ 44,828
$ 18
$ (64 ) $ 44,782

The Company recorded de minimis and $0.2 million in realized gains from the maturity of available-for-sale securities during the three and six months, respectively, ended June 30, 2020. The Company recorded realized gains of $0.1 million from the maturity of available-for-sale securities ~~during~~for both the three and six months ended June 30, ~~2019, respectively. The Company recorded $0.1 million~~2019.

As of ~~realized gains and $0.1 million in realized losses during the three and six months ended~~ June 30, ~~2018, respectively.~~2020, there were no investments with a fair value that was significantly lower than the amortized cost basis or any investments that had been in an unrealized loss position for a significant period.

5. Property and equipment, net

Property and equipment are summarized as follows (in thousands):

Accrued expenses and other current liabilities consisted of the following (in thousands):

June 30 December 31,
2019 2018
Accrued license obligations $ 2,552
$ 2,523
Compensation expense 1,779
2,380
Professional fees 1,366
1,945
Research and development fees 1,409
943
Audit and tax fees 317
378
Other current liabilities 1,068
945
Total $ 8,491
$ 9,114

7. ~~Stockholders´ Equity~~

~~The Company had 49,261,517 shares of common stock and 7,907 shares of preferred stock outstanding as of June 30, 2019, both with a par value of $0.001 per share.~~

~~Series B Preferred Stock~~

On January 30, 2019, the Company and certain entities affiliated with Biotechnology Value Fund, L.P., or BVF, entered into an exchange agreement pursuant to which BVF agreed to exchange an aggregate of 5,000,000 shares of the Company’s common stock owned by BVF for an aggregate of 5,000 shares of Series B Preferred Stock. On January 31, 2019, the Company designated 5,000 shares of its authorized and unissued preferred stock as Series B Preferred Stock and filed a Certificate of Designation of Series B Convertible Preferred Stock of Pieris Pharmaceuticals, Inc., or the Series B Certificate of Designation, with the Nevada Secretary of State.

Each share of Series B Preferred Stock is convertible into 1,000 shares of the Company's common stock (subject to adjustment as provided in the Series B Certificate of Designation) at any time at the option of the holder, provided that the holder is prohibited from converting the Series B Preferred Stock into shares of the Company's common stock if, as a result of such conversion, the holder, together with its affiliates, would own more than 9.99% of the total number of shares of Common Stock then issued and outstanding, or the Beneficial Ownership Limitation. The holder may reset the Beneficial Ownership Limitation to a higher or lower number, not to exceed 19.99% of the total number of common shares issued and outstanding immediately after giving effect to a conversion, upon providing written notice to the Company. Any such notice providing for an increase to the Beneficial Ownership Limitation will be effective 61 days after delivery to the Company.

In the event of the Company’s liquidation, dissolution or winding up, subject to the rights of holders of Senior Securities (defined below), holders of Series B Preferred Stock are entitled to receive a payment equal to $0.001 per share of Series B Preferred Stock before any proceeds are distributed to the holders of common stock and Junior Securities (defined below) and pari passu with any distributions to the holders of the previously issued Series A convertible preferred stock, or the Series A Preferred Stock, plus an additional amount equal to any dividends declared but unpaid on such shares. However, if the assets of

the Company are insufficient to comply with the preceding sentence, then all remaining assets of the Company shall be distributed ratably to holders of the shares of the Series B Preferred Stock and Parity Securities (defined below).

Shares of Series B Preferred Stock generally have no voting rights, except as required by law and except that the consent of holders of a majority of the then outstanding Series B Preferred Stock is required to amend the terms of the Series B Certificate of Designation. Holders of Series B Preferred Stock are entitled to receive any dividends payable to holders of the Company's common stock and rank:

~~in each case, as to distributions of assets upon the Company’s liquidation, dissolution or winding up whether voluntarily or involuntarily and/or the right to receive dividends.~~

~~2019 Employee, Director and Consultant Equity Incentive Plan~~

At the Annual Shareholder Meeting, held on July 31, 2019, the shareholders approved the 2019 Employee, Director and Consultant Equity Incentive Plan, or the 2019 Plan. The 2019 Plan permits the Company to issue up to 2,750,000 shares of common stock pursuant to awards granted under the 2019 Plan. Upon approval of the 2019 Plan, the 2018 Employee, Director and Consultant Equity Incentive Plan, or the 2018 Plan, was terminated; all unissued options will be cancelled and no additional awards will be made thereunder. All outstanding awards under the 2018 Plan will remain in effect and any awards forfeited from the outstanding awards will be recycled into the 2019 Plan. There were approximately 931,896 shares remaining and available for grant under the 2018 Plan that terminated with the 2018 Plan.

~~Open Market Sale Agreement~~

~~On August 9, 2019, subsequent to quarter end, the Company entered into an Open Market Sale Agreement~~^SM (the “Sale Agreement”) with Jefferies LLC (“Jefferies”) pursuant to which the Company may offer and sell shares of its common stock, par value $0.001 per share (the “Common Stock”), having aggregate gross sales proceeds of $50.0 million (the “Shares”), from time to time, through an “at the market offering” program under which Jefferies will act as sales agent. To date, the Company has not sold any Shares under the Sales Agreement. See Part II, Item 5 “Other Information” for additional information regarding the sale of the Shares.

8. Net Loss per Share

Basic net loss per share is calculated by dividing net income ~~(loss)~~loss by the weighted average shares outstanding during the period, without consideration for common stock equivalents. Diluted net loss per share is calculated by adjusting weighted average shares outstanding for the dilutive effect of common stock equivalents outstanding for the period, determined using the treasury-stock and if-converted methods. For purposes of the diluted net loss per share calculation, preferred stock, stock options and warrants are considered to be common stock equivalents but have been excluded from the calculation of diluted net loss per share, as their effect would be anti-dilutive for all periods presented. Therefore, basic and diluted net loss per share were the same for all periods presented.

For the three months ended June 30, ~~2019~~2020 and ~~2018,~~2019, and as calculated using the treasury stock method, approximately ~~21.6~~37.3 million and ~~14.7~~21.6 million of weighted average shares, respectively, were excluded from the calculation of diluted weighted average shares outstanding as their effect was ~~anti-dilutive.~~antidilutive.

~~9. License and Transfer Agreement~~

~~License and Collaboration Agreement with the Technical University of Munich~~8. Stockholders´ Equity

The Company had 300,000,000 shares authorized and ~~the Technical University~~52,399,152 and 55,212,437 issued and outstanding as of ~~Munich, or TUM, initiated discussions in the second quarter~~June 30, 2020 and December 31, 2019, respectively, with a par value of 2018 to clarify, expand and restructure their 2013 research and licensing agreement with TUM, or the TUM License, including the parties’ obligations under the TUM License. The TUM License assigns or exclusively licenses to the Company certain intellectual property related to the Company's Anticalin platform technology. The parties' recent discussions relate to revised commercial terms and to re-initiating additional collaborations between faculty at TUM and the Company. While an amended and restated license agreement has not yet been completed, the Company intends to enter into such an amendment. $0.001 per share.

The Company ~~recorded the probable expected impact~~had 10,000,000 shares authorized and 14,429 shares of ~~the amendment in research~~preferred stock issued and ~~development expense~~outstanding as of June 30, 2020. The Company had 10,000,000 shares authorized and 11,429 shares of preferred stock issued and outstanding as of December 31, ~~2018,~~2019. Preferred stock has a par value of $0.001 per share, and consists of the following:

•Series A Convertible, 2,907 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively.

•Series B Convertible, 5,000 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively.

•Series C Convertible, 3,522 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively.

•Series D Convertible, 3,000 and 0 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively.

2020 Employee, Director and Consultant Equity Incentive Plan

At the Annual Shareholder Meeting, held on June 23, 2020, the shareholders approved the 2020 Employee, Director and Consultant Equity Incentive Plan, or the 2020 Plan. The 2020 Plan permits the Company to issue up to 3,500,000 shares of common stock pursuant to awards granted under the 2020 Plan. Upon approval of the 2020 Plan, the 2019 Employee, Director and Consultant Equity Incentive Plan, or the 2019 Plan, was terminated; all unissued options will be canceled and no additional awards will be made thereunder. All outstanding awards under the 2019 Plan will remain in effect and any awards forfeited from the outstanding awards will be allocated back into the 2020 Plan. There were approximately 1,579,678 shares remaining and available for grant under the 2019 Plan that terminated upon approval of the 2020 Plan.

Series B Preferred Stock Conversion

2019 Private Placement

In November 2019, the Company entered into a securities purchase agreement for a private placement, or the Purchase Agreement, with a select group of institutional investors, including lead investor BVF as well as existing and new investors, or Investors. At the time of entering into the Purchase Agreement, BVF was a more than 5% stockholder of the Company, holding shares of common stock, Series A Preferred Stock, Series B Preferred Stock and warrants to purchase shares of common stock.

The private placement consisted of 9,014,960 units, at a price of $3.55 per unit for gross proceeds of approximately $32.0 million, and net proceeds to the Company of approximately $31.0 million. Each unit consists of (i) 1 share of the Company’s common stock, or Common Shares, or 0.001 shares of non-voting Series C convertible preferred stock, or Series C Preferred Shares, and together with the Common Shares, or Shares, and (ii) 1 immediately-exercisable warrant to purchase 1 share of the Company’s common stock with an exercise price of $7.10, or Exercise Price.

If (i) the initial public disclosure of the Phase 2a Study of PRS-060/AZD1402 that includes the “p” value achieved for the primary endpoint of such study reveals top-line data on the primary efficacy endpoint in the Phase 2a Study with a “p” value below 0.05 (i.e., p < 0.05) in at least one dose level; and (ii) the 10-day volume weighted average stock price commencing on the trading day immediately after the initial public disclosure is at least three percent more than the Exercise Price, ((i) and (ii), collectively, the “Performance Condition”), then the warrants will be exercisable for a period of 60 days from the date of the initial data disclosure and may only be exercised for cash. Otherwise, the warrants will be exercisable for a period of five years from the date of issuance, or Exercise Date. If the Performance Condition has not been met and the last reported sale price of the Company’s common stock immediately prior to the Expiration Date was greater than the Exercise Price, then the warrants shall be automatically deemed exercised on a cashless basis on the Expiration Date.

Upon issuance, each Series C Preferred Share included an embedded beneficial conversion feature as the market price of the Company’s Common Stock on the date of issuance of the Series C convertible preferred stock was $3.43 per share. As a result, the Company recorded the intrinsic value of the beneficial conversion feature of $2.8 million as a discount on the Series C convertible preferred stock at issuance. As the Series C Preferred Shares are immediately convertible upon issuance and do not include a stated redemption date, the discount was immediately accreted as a deemed dividend.

The terms of the Series C Preferred Shares, specifically voting rights, rights of conversion, beneficial ownership limitations, entitlement to dividends and distributions upon liquidation or dissolution, are identical to the Series B Preferred Shares.

Series D Preferred Stock Conversion

On March 31, 2020, the Company and certain entities affiliated with Biotechnology Value Fund, L.P., or BVF entered into an exchange agreement pursuant to which, on April 1, 2020, BVF exchanged an aggregate of 3,000,000 shares of the Company’s common stock owned by BVF for an aggregate of 3,000 shares of Series D Preferred Stock. The Company designated 3,000 shares of its authorized and unissued preferred stock as Series D Preferred Stock and filed a Certificate of Designation of Series D Convertible Preferred Stock of Pieris Pharmaceuticals, Inc., or the Series D Certificate of Designation, with the Nevada Secretary of State.

Each share of Series D Preferred Stock is convertible into 1,000 shares of Common Stock (subject to adjustment as provided in the Series D Certificate of Designation) at any time at the option of the holder, provided that the holder is prohibited from converting the Series D Preferred Stock into shares of Common Stock if, as a result of such conversion, the holder, together with its affiliates, would own more than 9.99% of the total number of shares of Common Stock then issued and outstanding. The holder may reset the Beneficial Ownership Limitation to a higher or lower number (not to exceed 19.99% of the total number of Common Shares issued and outstanding immediately after giving effect to a conversion) upon providing written notice to the Company. Any such notice providing for an increase into the ~~Company's financial obligations associated~~Beneficial Ownership Limitation will be effective 61 days after delivery to the Company. In the event of the Company’s liquidation, dissolution, or winding up, subject to the rights of holders of Senior Securities (defined below), holders of Series D Preferred Stock are entitled to receive a payment equal to $0.001 per share of Series D Preferred Stock before any proceeds are distributed to the holders of Common Stock and Junior Securities (defined below) and pari passu with any distributions to the holders of the Series A Preferred Stock, Series B Preferred Stock and Series C Preferred Stock, plus an additional amount equal to any dividends declared but unpaid on such shares. However, if the assets of the Company are insufficient to comply with the ~~TUM License~~preceding sentence, then all remaining assets of ~~approximately $2.3 million, for amounts~~the Company shall be distributed ratably to holders of the shares of the Series D Preferred Stock and Parity Securities (defined below). Shares of Series D Preferred Stock generally have no voting rights, except as required by law and except that ~~would be due~~ the consent of holders of a majority of the then outstanding Series D Preferred Stock is required to amend the terms of the Series D Certificate of Designation. Holders of Series D Preferred Stock are entitled to receive any dividends payable to holders of Common Stock, and rank:

•senior to all of the Common Stock;

•senior to any class or series of capital stock of the Company created after the designation of the Series D Preferred Stock specifically ranking by its terms junior to the Series D Preferred Stock (the “Junior Securities”);

•on parity with all shares of Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock and any class or series of capital stock of the Company created after the designation of the Series D Preferred Stock specifically ranking by its terms on parity with the Series D Preferred Stock (the "Parity Securities”); and

•junior to any class or series of capital stock of the Company created after the designation of the Series D Preferred Stock specifically ranking by its terms senior to the Series D Preferred Stock (the “Senior Securities”),

in each case, as to distributions of assets upon the Company’s liquidation, dissolution or winding up whether voluntarily or involuntarily and/or the right to receive dividends.

Open Market Sale Agreement

In August 2019, ~~for 2018~~the Company entered into a sale agreement pursuant to which the Company may offer and ~~2017 sub-licensing activities. These discussions may also lead~~sell shares of its common stock, from time to time, up to an ~~increase~~aggregate gross sales proceeds of $50.0 million through an “at the market offering” program under a shelf registration statement on Form S-3. To date, the Company has not sold any shares under this agreement.

The Company currently leases office space in Boston, Massachusetts. In August 2015, the ~~Company's collaborative research activities with TUM.~~Company entered into a sublease to lease approximately 3,950 square feet. The sublease expires on February 27, 2022 or such earlier date pursuant to the termination provisions of the sublease.

The Company also leased approximately 19,000 square feet of office and laboratory space in Freising, Germany under 4 agreements, the Freising Leases, including 3 leases for space on three floors of the same building and a letter agreement for additional conference room space within the building. The Freising Leases expired on March 31, 2020.

In October 2018, Pieris GmbH entered into a new lease for office and laboratory space located in Hallbergmoos, ~~Germany.~~ Germany, or the Hallbergmoos Lease. Pieris GmbH moved its operations, formerly conducted in Freising, Germany, to the Hallbergmoos facility in February 2020.

Under the Hallbergmoos Lease, ~~Agreement,~~ Pieris GmbH will rent approximately 105,000 square feet, of which approximately ~~96,400~~98,400 square feet ~~is expected to be~~were delivered by the lessor in ~~the fourth quarter of 2019~~February 2020 and approximately ~~8,600~~5,100 square feet ~~is expected to be~~were delivered by the lessor by in

May 2020. An additional approximately 22,300 square feet is expected to be delivered by the lessor by October 2024. Pieris GmbH has a first right of refusal to lease an additional approximate 13,400 square feet. ~~Pieris GmbH intends to move its operations currently conducted in Freising, Germany to the new leased property.~~

The Hallbergmoos Lease ~~Agreement~~ provides for an initial rental term of ~~150 months, commencing on the date the lessor first delivers~~12.5 years which commenced in February 2020 when the leased property was delivered to Pieris ~~GmbH as agreed under the lease agreement.~~GmbH. Pieris GmbH also has an option to extend the ~~term of the~~Hallbergmoos Lease ~~Agreement~~ for ~~two~~2 additional 60-month periods. The Company is not reasonably certain to exercise the option to extend the lease expiration beyond its current expiration date. Pieris GmbH may sublease space within the leased property with lessor’s consent, which may not be unreasonably withheld.

Monthly base rent for the initial 105,000 square feet of the leased property, including parking spaces, will total approximately $0.2 million per month, which amount shall be adjusted starting on the second anniversary of the commencement date by an amount equal to the German consumer price index. In addition to the base rent, Pieris GmbH is also responsible for certain administrative and operational costs in accordance with the ~~terms of the Lease Agreement.~~Hallbergmoos Lease. Pieris GmbH provided a security deposit of $0.8 million as ~~of December 31, 2018.~~required by the Hallbergmoos Lease. The Company will serve as a guarantor for the Hallbergmoos Lease.

The Hallbergmoos Lease ~~Agreement.~~

~~The Halbergmoos lease~~ included ~~$11.7~~$11.5 million of tenant improvements allowance for normal tenant improvements, for which construction began in March 2019. The date of the construction coincided with the lease commencement date for accounting purposes under ~~FASB~~ ASC 840,~~Leases~~.which did not change with the adoption off ASC 842. The Company ~~recorded~~capitalized the leasehold incentives which are included in Property and equipment, net on the Condensed Consolidated Balance Sheet and are amortized on a straight-line ~~rent expense~~basis over the shorter of the useful life or the remaining lease term. The lease incentive allowance was also factored in as a reduction to the right-of-use asset upon the adoption of ASC 842.

The following table summarizes operating lease costs included in operating expenses (in thousands):

The following table summarizes the weighted-average remaining lease term and discount rate as of June 30, 2020:

Cash paid for amounts included in the measurement of the lease liabilities was $0.6 million ~~during~~and $0.9 million for the three and six months ended June 30, ~~2019 and a deferred rent liability of $12.3 million, inclusive of a tenant improvement allowance of $11.7 million which the Company is amortizing as a reduction of rent expense over the lease term.~~ 2020.

As of June 30, ~~2019,~~2020, the ~~entire deferred rent liability was classified~~maturities of the Company’s operating lease liabilities and future minimum lease payments were as ~~non-current deferred rent on the consolidated balance sheet.~~follows (in thousands):

10. Subsequent Event

On August 10, 2020, the Company entered into a Clinical Trial Collaboration and Supply Agreement, or the Lilly Agreement, with Eli Lilly and Company, or Lilly, pursuant to which the Company and Lilly will collaborate in a Phase 2 Clinical Study, or the Study, to determine the safety and efficacy of the Company's PRS-343 in combination with the standard of care regimen for advanced or metastatic gastric cancer in the second line, ramucirumab (Cyramza®) and paclitaxel, for the second-line treatment of HER2+ gastric cancer.

Under the terms of the non-exclusive Lilly Agreement, the Company will sponsor the Study and Lilly will supply the Company with ramucirumab as well as provide input on certain clinical and regulatory aspects of the Study in exchange for jointly owning clinical data and inventions relating to the combination regimen that may arise from the Study. Any material changes to the protocol for the Study, and any changes relating to ramucirumab, will require Lilly’s prior written consent, which shall not be unreasonably withheld, conditioned or delayed.

The Lilly Agreement will expire upon completion of the parties’ contractual obligations. The Lilly Agreement may also be terminated (a) by either party for an uncured material breach by the other party upon 60 days’ notice, subject to a reasonable extension if such material breach requires more than 60 days to cure; (b) by either party in the event that the Study unreasonably affects patient safety, provided that the terminating party promptly notifies the other party and the other party is given the opportunity to propose modifications to the Study to address the safety issues; (c) by either party, following 15 days’ written notice, if regulatory action is taken preventing the terminating party from providing its compound or if the terminating party decides to discontinue development of its compound; (d) by either party, immediately upon written notice to the other party for breach by the other party of its material obligations under certain sections of the Lilly Agreement, or breach of certain of the other party's representations and warranties; and (e) by Lilly in the event of certain safety concerns related to the use of ramucirumab in the Study.

The interim financial statements and this Management’s Discussion and Analysis of Financial Condition and Results of Operations should be read in conjunction with the financial statements and notes thereto for the year ended December 31, ~~2018,~~2019, 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 fiscal year ended December 31, ~~2018,~~2019, filed with the SEC on March ~~18, 2019.~~13, 2020. In addition to historical information, this discussion and analysis contains forward-looking statements that involve risks, uncertainties and assumptions. Our actual results may differ materially from those anticipated in these forward-looking statements as a result of certain factors, including but not limited to those set forth under the caption “Risk Factors” in the Annual Report on Form 10-K for the fiscal year ended December 31, ~~2018.~~2019 and the Quarterly Report on Form 10-Q for the quarter ended March 31, 2020.

As used in this Quarterly Report on Form 10-Q, unless the context indicates or otherwise requires, “our Company”, “the Company”, “Pieris”, “we”, “us” and “our” refer to Pieris Pharmaceuticals, Inc., a Nevada corporation, and its consolidated subsidiaries.

We have registered trademarks for Pieris, Anticalin and others. All other trademarks, trade names and service marks included in this Quarterly Report on Form 10-Q are the property of their respective owners. ~~Tecentriq® (atezolizumab) is a registered trademark of Genentech, a member of the Roche Group.~~ Use or display by us of other parties’ trademarks, trade dress or products is not intended to and does not imply a relationship with, or endorsements or sponsorship of, us by the trademark or trade dress owner.

We are a clinical-stage biotechnology company that discovers and develops Anticalin-based drugs to target validated disease pathways in unique and transformative ways. Our clinical pipeline includes an inhaled IL-4Rα antagonist Anticalin protein to treat uncontrolled asthma, and an immuno-oncology (IO) bispecific targeting HER2 and ~~4-1BB and a half-life optimized hepcidin-antagonizing Anticalin protein to treat anemia.~~4-1BB. Proprietary to us, Anticalin proteins are a novel class of therapeutics validated in the clinic and through partnerships with leading pharmaceutical companies. Our ~~development~~core Anticalin technology and platform were developed in Germany and we have collaborations with major multi-national pharmaceutical companies. In particular, we have an alliance with AstraZeneca to treat respiratory diseases and partnerships with Servier and Seattle Genetics, both in IO. Our programs include:

~~PRS-060~~,•PRS-060/AZD1402, our lead respiratory program partnered with AstraZeneca, is a drug candidate that antagonizes IL-4Rα, thereby inhibiting IL-4 and IL-13, two cytokines known to be key mediators in the inflammatory cascade that drive the pathogenesis of asthma and other inflammatory diseases.

•Additional respiratory drug candidates beyond ~~PRS-060,~~PRS-060/AZD1402, both within and outside of the AstraZeneca alliance. ~~The AstraZeneca~~In addition to PRS-060/AZD1402, the alliance includes four respiratory programs, ~~beyond PRS-060.~~the targets and disease areas of which are undisclosed. We retain co-development and co-commercialization rights to two out of ~~those~~the four ~~programs. We initiated an additional discovery-stage~~programs beyond PRS-060/AZD1402. Our portfolio also includes several respiratory ~~program in our alliance with~~programs outside of the AstraZeneca bringing the total number of active programs to four; AstraZeneca may initiate one additional program within the alliance. We also initiated an additional proprietary respiratory discovery-stage program and continue to advance the two proprietary discovery-stage programs initiated last yearcollaboration.

•PRS-343, our lead IO program, is a fusion protein comprising a HER2-targeting antibody genetically linked to 4-1BB-targeting Anticalin proteins. PRS-343 is designed to drive ~~tumor localized~~tumor-localized T-cell activation through tumor-targeted drug clustering mediated by HER2 expressed on tumor cells. This program was the first bispecific T-cell ~~costimulatory~~co-stimulatory agonist to enter clinical development.

~~We are also developing additional~~•Additional IO drug candidates beyond PRS-343 that are multispecific Anticalin-based fusion proteins designed to engage immunomodulatory targets, comprising a variety of multifunctional biotherapeutics, including PRS-344, a bispecific antibody-Anticalin fusion protein comprising an PD-L1-targeting antibody genetically fused to Anticalin proteins specific for 4-1BB. PRS-344 is being developed as part of our IO collaboration with Servier. Other IO drug candidates are being developed as part of our collaboration with Servier and Seattle Genetics.

~~PRS-080~~ is an Anticalin protein that binds to hepcidin, a natural regulator of iron in the blood. PRS-080 is designed to target hepcidin for the treatment of functional iron deficiency in anemic patients with chronic kidney disease, or CKD, particularly in end-stage renal disease patients requiring dialysis.

Our programs are in varying stages:

•Our additional respiratory programs within and Development of our Drug Candidates”), could cause actual results to differ materially from those described in such statements. These statements are based on management’s current information and expectations. Actual events or results, including the full presentation expected to occur at the European Respiratory Society International Congress and the results or timing of any future PRS-060 study, may differ materially from those contained in these statements. The Company cannot guarantee that it actually will achieve the results, plans, intentions, expectations or guidance disclosed in these statements. Such statements only speak asoutside of the ~~date of this Quarterly Report on Form 10-Q and the Company disclaims any obligation to update information contained in these statements.~~

~~We continue to enroll and treat patients~~•Based on the totality of the data in athe phase 1 dose-escalation monotherapy study of PRS-343, ~~and intend~~a 4-1BB/HER2 bispecific for HER2-positive solid tumors, we plan to ~~report comprehensive data from the study at~~initiate a medical meeting later this year, including safety, tolerability, PK data, PD data assessing tumor localized drug effects such as CD8+ expansion, and clinical response data.We also continue to enroll the dose-escalation phase 12 single-arm study of PRS-343 in combination with ~~atezolizumab~~ramucirumab and ~~intend~~paclitaxel in second-line gastric cancer in the second half of this year. At the active dose levels for which we presented interim data last year in cohorts 9 (2.5 mg/kg Q3W) through 11b (8 m/kg Q2W), a partial response was observed in three patients and stable disease was observed in 11 patients as best response out of 21 evaluable patients, translating to ~~report~~an ORR of 14% and a DCR of 67%. All three objective responses in these cohorts were observed in cohort 11b, in which disease stabilization was also observed in three patients out of seven evaluable patients, translating to an ORR of 43% and a DCR of 86%. Additional clinical benefit, including complete response, was also observed in the higher dose cohorts, which are still open for enrollment. Pieris plans to present detailed data from both the monotherapy study and atezolizumab combination study in an oral presentation session at the European Society for Medical Oncology (ESMO) Virtual Congress in September 2020.

In July 2020, we announced that our phase 1 studies of PRS-343 have been placed on partial clinical hold by the U.S. Food and Drug Administration (FDA) while we conduct an additional in-use and compatibility study requested by the Agency. The partial hold was initially communicated by FDA in a ~~medical~~teleconference and the Company has since received written correspondence from the Agency confirming the partial hold. Treatment of currently-enrolled patients may continue, although no new patients can be enrolled until resolution of the partial hold. Separately, the Company has received a written response from the Agency to a Type C meeting request in which they agreed with the proposal to waive further toxicology testing of PRS-343 and provided input related to the design of the planned phase 2 proof of concept study of PRS-343 in combination with ramucirumab and paclitaxel. Based on this response and pending successful completion of the requested in-use and compatibility study, we continue to believe it can initiate this clinical study later this year.

On August 10, 2020, we entered into a Clinical Trial Collaboration and Supply Agreement (the "Lilly Agreement") with Eli Lilly and Company ("Lilly"), pursuant to which we and Lilly will collaborate in a Phase 2 Clinical Study to determine the safety and efficacy of our PRS-343 in combination with the standard of care regimen for advanced or metastatic gastric cancer in the second line, ramucirumab (Cyramza®) and paclitaxel, for the second-line treatment of HER2+ gastric cancer. Under the terms of the non-exclusive Lilly Agreement, we will sponsor the Study and Lilly will supply us with ramucirumab as well as provide input on certain clinical and regulatory aspects of the Study in exchange for jointly owning clinical data and inventions relating to the combination regimen that may arise from the

Study. Any material changes to the protocol for the Study, and any changes relating to ramucirumab, will require Lilly’s prior written consent, which shall not be unreasonably withheld, conditioned or delayed.

•For our ~~other~~additional IO drug candidates, ~~and programs,~~ we are conducting activities relating to candidate identification, optimization and preclinical evaluation.

◦In March 2020, Servier notified us of its decision to discontinue co-development of two earlier preclinical stage programs for strategic reasons based upon an extensive portfolio review and focus exclusively on the two later-stage programs in the collaboration, PRS-344 and PRS-352.

◦We anticipates filing an IND application for PRS-344, a 4-1BB/PD-L1 bispecific, in 2021. We hold exclusive commercialization rights for PRS-344 in the United States and will receive royalties on ex-U.S. sales from Servier for this program.

◦We are also focused on completing the non-GLP preclinical work for PRS-352, a preclinical-stage program within the Servier alliance addressing undisclosed targets, and expects to hand it over this year to Servier.

◦We achieved ~~two~~a key preclinical ~~milestones in connection with~~milestone for one of the ~~PRS-344 program, one in December 2018 and another in February 2019, triggering two milestone payments from Servier, and intend to file an IND for the drug candidate~~programs in the ~~second half~~Seattle Genetics collaboration, a bispecific tumor-targeted costimulatory agonist, triggering a $5 million milestone. The program is one of ~~2019. We also executed our option~~up to ~~opt-into co-development and United States commercialization of PRS-344 during the first quarter of 2019.~~

Our core Anticalin technology and platform were developed in Germany and we have collaborations with major multi-national pharmaceutical companies. In particular, we have an alliance with AstraZeneca to treat respiratory diseases and partnerships with Servier and Seattle Genetics, both in IO.

Since inception, we have devoted nearly all of our efforts and resources to our research and development activities and have incurred significant net losses. For the three and six months ended June 30, 2020, we reported a net loss of $5.0 million and $8.5 million, respectively. For the three and six months ended June 30, 2019, we reported a net loss of $11.8 million and $22.1 million, respectively. ~~For the three and six months ended June 30, 2018, we reported a net loss of $0.2 million and $8.9 million, respectively.~~ As of June 30, ~~2019,~~2020, we had an accumulated deficit of ~~$170.8~~$182.7 million. We expect to continue incurring substantial losses for the next several years as we continue to develop our clinical and preclinical drug candidates and programs. Our operating expenses are comprised of research and development expenses and general and administrative expenses.

We have not generated any revenues from product sales to date and we do not expect to generate revenues from product sales for the foreseeable future. Our revenues for the three and six months ended June 30, ~~2019~~2020 and ~~2018~~2019 were from license and collaboration agreements with our partners.

A significant portion of our operations are conducted in countries other than the United States. Since we conduct our business in U.S. dollars, our main exposure, if any, results from changes in the exchange rates between the euro and the U.S. dollar. At each period end, we remeasure assets and liabilities to the functional currency of that entity (for example, U.S. dollar payables recorded by Pieris Pharmaceuticals GmbH). Remeasurement gains and losses are recorded in the statement of operations line item ~~"Other~~‘Other income (expense), ~~net".~~net.’ All assets and liabilities denominated in euros are translated into U.S. dollars at the exchange rate on the balance sheet date. Revenues and expenses are translated at the weighted average rate during the period. Equity transactions are translated using historical exchange rates. All adjustments resulting from translating foreign currency financial statements into U.S. dollars are included in accumulated other comprehensive loss.

Key Financial Terms and Metrics

The following discussion summarizes the key factors our management believes are necessary for an understanding of our consolidated financial statements.

We have not generated any revenues from product sales to date and we do not expect to generate revenues from product sales for the foreseeable future. Our revenues for the last two years have been primarily from the license and collaboration agreements with AstraZeneca, Servier and Seattle Genetics.

The revenues from AstraZeneca, Servier and Seattle Genetics have been comprised primarily of upfront payments, research and development services and milestone payments. For additional information about our revenue recognition policy, see “Note ~~2—Summary~~2-Summary of Significant Accounting Policies”.

Research and Development Expenses

The process of researching and developing drugs for human use is lengthy, unpredictable and subject to many risks. We expect to continue incurring substantial expenses for the next several years as we continue to develop our clinical and preclinical drug candidates and programs. We are unable, with any certainty, to estimate either the costs or the timelines in which those expenses will be incurred. Our current development plans focus on the following ~~activities: Our~~programs: our lead respiratory program, ~~PRS-060~~PRS-060/AZD1402 and our other respiratory programs, our IO programs, currently comprised of PRS-343 as well as multiple additional proprietary and partnered programs, including PRS-344. These programs consume a large proportion of our current, as well as projected, resources.

Our research and development costs include costs that are directly attributable to the creation of certain of our Anticalin drug candidates and are comprised of:

•internal recurring costs, such as personnel-related costs (salaries, employee benefits, equity compensation and other costs), materials and supplies, facilities and maintenance ~~costs;~~costs attributable to research and development functions; and

•fees paid to external parties who provide us with contract services, such as preclinical testing, manufacturing and related testing and clinical trial activities.

General and Administrative Expenses

General and administrative expenses consist primarily of salaries, employee benefits, equity compensation and other personnel-related costs associated with executive, administrative and other support staff. Other significant general and administrative

expenses include the costs associated with professional fees for accounting, auditing, insurance costs, consulting and legal ~~services.~~services along with facility and maintenance costs attributable to general and administrative functions.

Results of Operations

Comparison of the three and six months ended June 30, ~~2019~~2020 and ~~2018~~2019

The following table sets forth our revenues and operating expenses ~~for the three and six months ended June 30, 2019 and 2018~~ (in thousands):

The following table provides a comparison of revenues for the three months ended June 30, ~~2019~~2020 and ~~2018~~2019 (in thousands):

Three Months Ended June 30
2019 2018 Increase/(Decrease)
Revenue from contracts with customers $ 4,934
$ 11,224
$ (6,290 )
Collaboration revenue (ASC 808) 398
467
(69 )
Total Revenue $ 5,332
$ 11,691
$ (6,359 )


	Three Months Ended June 30,
	2020		2019		Increase/(Decrease)
Customer revenue	$	10,930	$	4,723	$	6,207
Collaboration revenue	316		609		(293)

Total Revenue	$	11,246	$	5,332	5,914

•The ~~$6.3~~$6.2 million ~~decrease~~increase in customer revenue ~~from contracts with customers~~ in the three months ended June 30, ~~2019~~2020 compared to the three months ended June 30, ~~2018 partially~~2019 relates to ~~Roche~~higher Seattle Genetics revenue recorded upon the execution of a contractual amendment (approximately $3.5 million) in the ~~prior~~current period as well as the achievement of ~~$1.5~~a $5.0 million ~~due to~~milestone

on the ~~recognition of the remaining portion of the upfront payment under this~~first collaboration ~~upon the agreement termination. In addition, level~~program. This increase was partially offset by lower levels of activities with respect to our collaboration agreements with ~~both Seattle Genetics and AstraZeneca have also decreased.~~AstraZeneca.

•The ~~$0.1~~$0.3 million decrease in collaboration ~~revenue~~revenues in the three months ended June 30, ~~2019~~2020 compared to the three months ended June 30, ~~2018~~2019 relates to ~~slightly~~ lower ~~research and development activities under~~amounts of cost-sharing revenue due to the timing of manufacturing costs incurred with respect to our collaboration agreement with Servier.

The following table provides a comparison of revenues for the six months ended June 30, ~~2019~~2020 and ~~2018~~2019 (in thousands):


	Six Months Ended June 30,
	2020		2019		Increase/(Decrease)
Customer revenue	$	19,815	$	11,949	$	7,866
Collaboration revenue	4,692		1,928		2,764

Total Revenue	$	24,507	$	13,877	10,630

Six Months Ended June 30
2019 2018 Increase/(Decrease)
Revenue from contract with customers $ 12,468
$ 14,668
$ (2,200 )
Collaboration revenue (ASC 808) 1,409
1,084
325
Other —
91
(91 )
Total Revenue $ 13,877
$ 15,843
$ (1,966 )

•The ~~$0.3~~$2.8 million increase in collaboration revenues in the six months ended June 30, ~~2019~~2020 compared to the six months ended June 30, ~~2018~~2019 relates to ~~increased research and development activities under our collaboration with Servier.~~higher amounts of revenue upon the termination of a preclinical program by Servier for strategic reasons.

Research and Development Expenses

The following table provides a comparison of the research and development expenses for the three months ended June 30, ~~2019~~2020 and ~~2018~~2019 (in thousands):

•Research and development in our respiratory programs remained flat period-over-period due to offsetting increases in clinical costs and decreases in manufacturing costs with respect to activities for PRS-060.

•The ~~$0.7~~$1.5 million ~~increase~~decrease in our immuno-oncology programs period-over-period is due primarily to lower manufacturing and preclinical costs for our PRS-344 program on a period-over-period basis as the manufacturing costs were initiated and ramped up in the first half of 2019.

•The $0.6 million decrease in other research and development activities expenses is mainly due to lower clinical costs on non-core programs (including Anemia), lower recruiting costs and lower overall travel costs related to COVID-19 restrictions. These decreases were partially offset by higher personnel costs and higher allocated IT and facility costs due to the move to a new R&D facility in Hallbergmoos, Germany in the first quarter of 2020.

The following table provides a comparison of the research and development expenses for the six months ended June 30, 2020 and 2019 (in thousands):


	Six Months Ended June 30,
	2020		2019		Increase/(Decrease)
Respiratory	$	5,425	$	5,927	$	(502)
Immuno-oncology	6,021		9,848		(3,827)

Other R&D activities	12,645		11,894		751
Total	$	24,091	$	27,669	(3,578)

•The $0.5 million decrease for our respiratory programs period-over-period is due primarily to ~~increases~~decreases in manufacturing costs with respect to ~~our ongoing CMC costs incurred for phase 2a readiness~~activities for PRS-060 ~~offset by~~as well as lower ~~clinical costs as the phase 1 SAD study was completed earlier in 2019. We also incurred higher pre-clinical and lab supply expenses as we initiated and we are working on more~~activities for other proprietary ~~and partnered~~ respiratory ~~programs in 2019 compared to 2018;~~programs.

•The ~~$1.5~~$3.8 million ~~increase~~decrease in our immuno-oncology ~~program spending~~programs period-over-period is due primarily to ~~an increase in clinical trials~~lower manufacturing and preclinical costs ~~incurred for PRS-343 and drug product manufacturing for both PRS-343 and PRS-344, all offset by lower spending on other IO programs on a period-over-period basis;~~

•The ~~$2.3~~$0.8 million increase in other research and development activities expenses is mainly due to higher personnel expenses, including bonus and stock compensation, ~~due to an overall increase in headcount, an increase in recruiting~~higher allocated IT and ~~professional services costs, and an increase in allocated~~ facility costs due to ~~higher non-cash rent charges for~~ the move to a new ~~Halbergmoos~~R&D facility ~~that is being prepared for occupancy.~~

~~The following table provides a comparison~~in Hallbergmoos, Germany in the first quarter of ~~the research and development expenses for the six months ended June 30, 2019 and 2018 (in thousands):~~

Six Months Ended June 30
2019 2018 Increase/(Decrease)
Respiratory $ 5,927
$ 3,301
$ 2,626
Immuno-oncology 9,848
4,564
5,284
Anemia 222
1,304
(1,082 )
Other R&D activities 11,672
7,922
3,750
Total $ 27,669
$ 17,091
$ 10,578

General and Administrative Expenses

General and administrative expenses were $4.6 million for the three months ended June 30, 2020 and $4.2 million for the three months ended June 30, ~~2019 as compared to $4.8 million for the three months ended June 30, 2018.~~2019. The ~~period-over-period decrease~~period over period increase is due to higher legal and audit, as well as allocated IT and facility costs due to the move to a new R&D facility, offset slightly by lower ~~audit and tax expense and~~personnel costs, lower professional services ~~expense.~~and lower overall travel costs related to COVID-19 restrictions.

General and administrative expenses were $8.9 million for the six months ended June 30, 2020 and $9.1 million for the six months ended June 30, ~~2019 ad six~~2019. The period over period fluctuation is due to lower personnel expenses, including bonus and stock compensation, lower professional services, and lower overall travel costs related to COVID-19 restrictions. These were slightly offset by higher legal costs, higher insurance premiums and higher investor relation costs.

Other Income (Expense)

Our other income (expense) was $(0.3) million for the three months ended June 30, ~~2018. There were no significant fluctuations in expense on a period over period basis.~~

~~Non-operating income (expense), net~~

~~Our non-operating income was~~2020 and $0.5 million for the three months ended June 30, ~~2019 as compared~~2019. This was due to ~~$1.9~~the impact of lower interest income (both lower invested amounts and lower interest rates in the current quarter) and a weakening U.S. dollar against the euro in the current quarter versus the prior year quarter.

Our other income (expense) was de minimis for the six months ended June 30, 2020 and $0.8 million for the three months ended June 30, ~~2018.~~2019. This ~~decrease is~~was due to the impact of lower interest income ~~as a result of~~(both lower invested amounts and lower interest rates in the current quarter) and a weakening ~~of the~~ U.S. dollar against the euro ~~including foreign currency remeasurement of monetary assets, primarily U.S. dollar cash and investment balances~~ in ~~Germany.~~

~~Our non-operating income was $0.8 million for~~ the ~~six months ended June 30, 2019 as compared to $1.3 million for~~current year versus the ~~six months ended June 30, 2018. This decrease is due to a weakening of the U.S. dollar against the euro, offset slightly by a higher yield on the lower amounts invested.~~prior year.

Liquidity and Capital Resources

Through June 30, ~~2019,~~2020, we have funded our operations primarily through private and public sales of equity, payments received under our license and collaboration agreements (including research and development services costs, upfront and milestone payments), government grants and loans.

As of June 30, ~~2019,~~2020, we had a total of ~~$99.7~~$77.2 million in cash, cash equivalents and investments. We have incurred losses in every period since inception including the three months ended June 30, ~~2019~~2020 and ~~2018,~~2019, respectively, and have a total accumulated deficit of ~~$170.8~~$182.7 million as of June 30, ~~2019.~~2020.

We have several research and development programs underway in varying stages of development and we expect they will continue to require increasing amounts of cash for development, conducting clinical trials and testing and manufacturing of product material. We expect cash necessary to fund operations will increase significantly over the next several years as we

continue to conduct these activities necessary to pursue governmental regulatory approval of clinical-stage programs and our other product candidates.

The following table provides a summary of operating, investing and financing cash flows (in thousands):


	Six Months Ended June 30,
	2020		2019
Net cash used in operating activities	$	(24,909)	$	(25,841)
Net cash provided by investing activities	6,010		7,596
Net cash provided by financing activities	416		280

Net cash used in operating activities for the six months ended June 30, 2020 and 2019 ~~and 2018 respectively (in thousands):~~

Six Months Ended June 30
2019 2018
Net cash (used in) provided by operating activities (25,841 ) 22,351
Net cash provided by (used in) investing activities 7,596
(57,056 )
Net cash provided by financing activities 280
48,228

~~There~~ was ~~a $48.2~~$24.9 million ~~change in net cash from operating activities, as the net cash used in operating activities was~~and $25.8 million, ~~for the six months ended June 30, 2019 compared to net cash provided by operating activities of $22.4 million for the six months ended June 30, 2018.~~respectively. The change is primarily driven by lower accounts ~~receivable~~payable, accrued expenses and ~~higher~~ deferred revenue asmainly driven by revenue recognized for the discontinued Servier programs and the satisfaction of a ~~result of upfront payments from~~performance obligation under the Seattle Genetics ~~and milestone payments from AstraZeneca, which totaled $37.1 million, offset slightly by other working capital changes~~agreements during the six months ended June 30, ~~2019. Additionally, there was an $13.2~~2020, offset by a $13.6 million ~~increase~~decrease in the net loss in ~~2019~~2020 compared to ~~2018.~~2019.

The change in net cash ~~due to~~provided by investing activities for the six months ended June 30, ~~2019~~2020 compared to the same period in ~~2018~~2019 is mainly attributable to ~~more~~lower overall investment ~~maturities than investment purchases~~balance in the current year compared to ~~2018.~~2019 and an increase in purchases of property and equipment related to our move to a new R&D facility.

Financing activities for the six months ended June 30, 2020 and 2019 were $0.4 million and $0.3 million, respectively, due to higher proceeds from exercises of options and warrants ~~and~~along with proceeds from ~~the~~our employee stock purchase plan. This is compared to $47.2 million in proceeds due to the issuance of common stock under our 2018 Offering along with $1.0 million of proceeds from the exercise of warrants and stock options for the six months ended June 30, 2018.

OnIn August 9, 2019, ~~subsequent to our quarter end,~~ we entered into ~~an Open Market Sale Agreement~~^SM ~~(the “Sale Agreement”) with Jefferies LLC (“Jefferies”)~~a sale agreement pursuant to which wethe Company may offer and sell shares of ~~our~~its common stock, ~~par value $0.001 per share (the “Common Stock”), having~~from time to time, up to an aggregate gross sales proceeds of $50.0 million ~~(the “Shares”), from time to time,~~ through an “at the market offering” program under ~~which Jefferies will act as sales agent.~~a shelf registration statement on Form S-3 (File No. 333-226725). To date, ~~we have~~the Company has not sold any ~~Shares~~shares under this agreement.

In November 2019, we entered into a securities purchase agreement for a private placement with a select group of institutional investors. The private placement, referred to as the ~~Sales Agreement. See Part II, Item 5 “Other Information”~~PIPE, consisted of 9,014,960 units, at a price of $3.55 per unit, for ~~additional information regarding~~gross proceeds of approximately $32.0 million, and net proceeds to the ~~sale~~Company of ~~the Shares.~~approximately $31.0 million, after deducting placement agent fees and estimated offering expenses payable by us. Each unit consists of (i) one share of our common stock or 0.001 shares of non-voting Series C convertible preferred stock, and (ii) one immediately-exercisable warrant to purchase one share of our common stock with an exercise price of $7.10.

We expect that our existing cash, cash equivalents and investments will enable us to fund our operational and capital expenditure requirements for at least twelve months from the issuance date of these financial statements. Any requirements for additional capital will depend on many factors, including the following:

•the scope, rate of progress, results and cost of our clinical studies, preclinical testing and other related activities;

•the cost of manufacturing clinical supplies, and establishing commercial supplies, of our drug candidates and any products that we may develop;

•the number and characteristics of drug candidates that we pursue;

•the cost, timing and outcomes of regulatory approvals;

•the cost and timing of establishing sales, marketing and distribution capabilities;

•the terms and timing of any collaborative, licensing and other arrangements that we may establish;

•the timing, receipt and amount of sales, profit sharing or royalties, if any, from our potential products;

•the cost of preparing, filing, prosecuting, defending and enforcing any patent claims and other intellectual property rights; ~~and~~

•the extent to which we acquire or invest in businesses, products or technologies, although we currently have no commitments or agreements relating to any of these types of ~~transactions.~~transactions; and

•the effects of the COVID-19 pandemic and the cost and timing of actions taken to contain it.

Due to the often-volatile nature of the financial markets, equity and debt financing(s) may be difficult to obtain. In addition, any unfavorable development or delay in the progress of our core clinical-stage programs including ~~PRS-060~~PRS-343 and ~~PRS-343~~PRS-060/AZD1402 could have a material adverse impact on our ability to raise additional capital.

We may seek to raise any necessary additional capital through a combination of private or public equity offerings, debt financings, collaborations, strategic alliances, licensing arrangements and other marketing and distribution arrangements. To the extent that we raise additional capital through marketing and distribution arrangements or other collaborations, strategic alliances or licensing arrangements with third parties, we may have to relinquish valuable rights to our drug candidates, future revenue streams, research programs or product candidates or to grant licenses on terms that may not be favorable to us. If we raise additional capital through private or public equity offerings, the ownership interest of our existing stockholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect our stockholders’ rights. If we raise additional capital through debt financing, we may be subject to covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends.

Off-Balance Sheet Arrangements

We do not have any off-balance sheet arrangements, as defined under applicable SEC rules.

Critical Accounting Policies and Estimates

Refer to Part II, Item 7, "Critical Accounting Policies and Estimates" of our Annual Report on Form 10-K for the fiscal year ended on December 31, ~~2018~~2019 for a discussion of our critical accounting policies and estimates. There ~~has~~have been ~~one~~two material ~~change~~changes to the critical accounting policies during the six months ended June 30, ~~2019. This change is related~~2020. These changes relate to revenue recognition and isproperty and equipment and are described in “Note 2—Summary of Significant Accounting Policies”. and "Note 5—Property and Equipment, net", respectively.

This discussion and analysis of our financial condition and results of operations is based on our financial statements, which we have prepared in accordance with U.S. generally accepted accounting principles. We believe that several accounting policies are important to understanding our historical and future performance. We refer to these policies as critical because these specific areas generally require us to make judgments and estimates about matters that are uncertain at the time we make the estimate, and different estimates—which also would have been reasonable—could have been used. On an ongoing basis, we evaluate our estimates and judgments, including those described in greater detail below. We base our estimates on historical experience and other market-specific or other relevant assumptions that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

We believe that our most critical accounting policies are those relating to revenue recognition, contingencies, research and development expense and income taxes, and there have been significant changes to our revenue recognition, multiple-element and milestone accounting policies discussed in the Annual Report on Form 10-K for the fiscal year ended on December 31, ~~2018.~~2019. Please refer to “Note 2—Summary of Significant Accounting Policies” for the updated revenue recognition policy that encompasses the changes to the historical revenue recognition, multiple-element and milestone accounting policies.

Recently Issued Accounting Pronouncements



			Page
PART I: FINANCIAL INFORMATION
Item 1. Financial Statements (unaudited)			1
Condensed Consolidated Balance Sheets as of June ~~30, 2019~~ 3 0 , 2020 and December 31, ~~2018~~2019			1
Condensed Consolidated Statements of Operations and Comprehensive Loss for the Three and Six Months ended June ~~30, 2019~~ 3 0 , 2020 and ~~2018~~2019			2
Condensed Consolidated Statements of Changes in Stockholders' Equity for the Three and Six Months ended June ~~30, 2019~~ 3 0 , 2020 and ~~2018~~2019			3
Condensed Consolidated Statements of Cash Flows for the Six Months ended June ~~30, 2019~~ 3 0 , 2020 and ~~2018~~2019			5
Notes to the Condensed Consolidated Financial Statements			6
Item 2. Management´s Discussion and Analysis of Financial Condition and Results of Operations			2527
Item 3. Quantitative and Qualitative Disclosures about Market Risk			3335
Item 4. Controls and Procedures			3335
PART II: OTHER INFORMATION
Item 1. Legal Proceedings			3537
Item 1A. Risk Factors			3537
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds			3538
Item 3. Defaults Upon Senior Securities			3538
Item 4. Mine Safety Disclosures			3538
Item 5. Other Information			3538
Item 6. Exhibits			3638
SIGNATURES			3841


								June 30,		December 31,
	June 30			December 31,				2020		2019
	2019			2018
Laboratory equipment	$	8,109		$	7,431
Office and computer equipment	692			661
Laboratory furniture and equipment							Laboratory furniture and equipment	$	9,485	$	11,635
Office furniture and equipment							Office furniture and equipment	1,939		479
Computer equipment							Computer equipment	354		245
Leasehold improvements	2,444			323			Leasehold improvements	12,889		10,710
Property and equipment at cost	11,245			8,415
Property and equipment, cost							Property and equipment, cost	24,667		23,069
Accumulated depreciation	(3,357		)	(3,366		)	Accumulated depreciation	(4,161)		(3,567)
Property and equipment, net	$	7,888		$	5,049		Property and equipment, net	$	20,506	$	19,502


	As of June 30, 2020
Weighted-average remaining lease term (years)	11.9
Weighted-average discount rate	10.5	%


	Total
2020	$	1,206
2021	2,415
2022	2,246
2023	2,211
2024	2,211
Thereafter	16,768
Total undiscounted lease payments	27,057
Less: present value adjustment	(11,172)
Present value of lease liabilities	$	15,885



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



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



	As Reported, December 31, 2018			ASC 606 Adjustment			Adjusted, January 1, 2019
Consolidated Balance Sheet Data (in thousands):
Prepaid expenses and other current assets	$	4,574		$	716		$	5,290
Other non-current assets	910			1,120			2,030
Total Assets	$	141,341		$	1,836		$	143,177
Deferred revenue, net of current portion	$	53,303		$	3,477		$	56,780
Total Liabilities	101,406			3,477			104,883
Accumulated deficit	(147,066		)	(1,641		)	(148,707		)
Total stockholders' equity	39,935			(1,641		)	38,294
Total liabilities and stockholders' equity	$	141,341		$	1,836		$	143,177



	June 30, 2019
	As Reported, ASC 606			Adjustments			Adjusted Balance, ASC 605
Condensed Consolidated Balance Sheet Data (in thousands):
Prepaids and other current assets	$	4,605		$	(604	)	$	4,001
Other non-current assets	11,490			(1,120		)	10,370
Total Assets	$	130,840		$	(1,724	)	$	129,116
Deferred revenues, current portion	28,406			8,689			37,095
Deferred revenue, net of current portion	58,110			(11,644		)	46,466
Total Liabilities	111,355			(2,955		)	108,400
Accumulated Deficit	(170,813		)	1,231			(169,582		)
Total stockholders' equity	19,485			1,231			20,716
Total liabilities and stockholders' equity	$	130,840		$	(1,724	)	$	129,116



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



~~Nevada~~