Financial Instruments and Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2022

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Summary of Black-Scholes-Merton assumptions used in calculating the estimated fair value

Black-Scholes-Merton assumptions used in calculating the estimated value of stock options granted by Innoviva on the date of grant were as follows:

	Three Months Ended March 31,
	2022			2021
Risk-free interest rate		1.6	%	1.1 %
Expected term (in years)		6.11			6.11
Volatility		40.5	%		45.6	%
Dividend yield		0.0	%		0.0	%
Weighted-average estimated fair value of stock options granted	$	7.73		$	5.42

Schedule of Available-for-Sale Securities Measured at Fair Value on a Recurring Basis

Our equity and long-term investments are measured at fair value on a recurring basis and our debt is carried at amortized cost basis. Equity investments accounted for using the measurement alternative are valued using Level 3 inputs.

	Estimated Fair Value Measurements as of March 31, 2022 Using:
	Quoted Price in Active Markets for		Significant Other		Significant
	Identical		Observable		Unobservable
Types of Instruments	Assets		Inputs		Inputs
(In thousands)	Level 1		Level 2		Level 3		Total
Assets
Money market funds	$	103,181	$	—	$	—	$	103,181
Investments held by ISP Fund LP (1)		305,516		—		2,060		307,576
Equity investment - Armata Common Stock		122,625		—		—		122,625
Equity investment - Armata Warrants		—		64,894		—		64,894
Equity investment - InCarda Warrants		—		—		1,040		1,040
Convertible debt investment - InCarda Note						652		652
Convertible debt investment - Gate Note		—		—		14,900		14,900
Total assets measured at estimated fair value	$	531,322	$	64,894	$	18,652	$	614,868
Debt
2023 Notes	$	—	$	106,499	$	—	$	106,499
2025 Notes		—		253,497		—		253,497
2028 Notes		—		260,815		—		260,815
Total fair value of debt	$	—	$	620,811	$	—	$	620,811

(1)The investments held by ISP Fund LP, consisted of $172.1 million in equity investments, which included $2.1 million in a private placement position, $25.2 million in money market funds and $110.3 million in cash. Our total capital contribution of $300.0 million is subject to a 36-month lock-up period from the date of such capital contributions.

	Estimated Fair Value Measurements as of December 31, 2021 Using:
	Quoted Price
	in Active		Significant
	Markets for		Other		Significant
	Identical		Observable		Unobservable
Types of Instruments	Assets		Inputs		Inputs
(In thousands)	Level 1		Level 2		Level 3		Total
Assets
Money market funds	$	145,132	$	—	$	—	$	145,132
Investments held by ISP Fund LP (1)		193,677		—		2,068		195,745
Equity investment - Armata Common Stock		88,101		—		—		88,101
Equity investment - Armata Warrants		—		58,595		—		58,595
Equity investment - Entasis Common Stock		62,794		—		—		62,794
Equity investment - Entasis Warrants		—		40,914		—		40,914
Equity investment - InCarda Warrants		—		—		411		411
Convertible debt investment - Gate Note		—		—		15,100		15,100
Total assets measured at estimated fair value	$	489,704	$	99,509	$	17,579	$	606,792
Debt
2023 Notes	$	—	$	261,769	$	—	$	261,769
2025 Notes		—		234,498		—		234,498
Total fair value of debt	$	—	$	496,267	$	—	$	496,267

(1)The investments held by ISP Fund LP, consisted of $192.2 million equity investments and $3.5 million money market funds, are subject to a 36-month lock-up period from our initial contribution date, December 11, 2020.

Armata

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Schedule of Income Statement Information

The summarized financial information, including the portion we do not own, is presented for Armata on a one quarter lag regardless of the date of our investments as follows:

Income Statement Information

	For the Three Months Ended December 31,
(In thousands)	2021			2020
Revenue	$	989		$	504
Loss from operations	$	(6,048	)	$	(6,453	)
Net loss	$	(6,047	)	$	(6,624	)

InCarda

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Summary of Black-Scholes-Merton assumptions used in calculating the estimated fair value

Black-Scholes-Merton assumptions used in calculating the estimated fair value of the InCarda 2020 Warrant as of March 31, 2022 and December 31, 2021 were as follows:

	March 31,			December 31,
(In thousands)	2022			2021
Risk-free interest rate		1.63	%		0.06	%
Expected volatility		69.37	%		55.44	%
Expected dividend yield		—			—
Expected term (in years)		1.00			0.25