The Company has certain financial assets and liabilities that are recorded at fair value which have been classified as Level 1, 2 or 3 within the fair value hierarchy as described in the accounting standards for fair value measurements.

The tables below present information about the Company’s financial assets and liabilities that are measured and carried at fair value and indicate the level within the fair value hierarchy of valuation techniques it utilizes to determine such fair value:

	Fair Value Measurement as of March 31, 2021
	Total		Level 1		Level 2		Level 3
	(in thousands)
Assets
Money market funds	$	1,053,383	$	1,053,383	$	—	$	—
Government and government agency bonds		359,029		359,029		—		—
Strategic equity investments		40,640		3,740		—		36,900
Certificates of deposit		250		250		—		—
Total assets	$	1,453,302	$	1,416,402	$	—	$	36,900

Liabilities
Contingent consideration	$	50,800	$	—	$	—	$	50,800
Total liabilities	$	50,800	$	—	$	—	$	50,800

	Fair Value Measurement as of December 31, 2020
	Total		Level 1		Level 2		Level 3
	(in thousands)
Assets
Money market funds	$	629,440	$	629,440	$	—	$	—
Government and government agency bonds		1,037,981		1,037,981		—		—
Strategic equity investments		38,799		3,699		—		35,100
Certificates of deposit		250		250		—		—
Total assets	$	1,706,470	$	1,671,370	$	—	$	35,100

Liabilities
Contingent consideration	$	50,800	$	—	$	—	$	50,800
Total liabilities	$	50,800	$	—	$	—	$	50,800

The Company’s assets with fair value categorized as Level 1 within the fair value hierarchy include money market funds, government and government agency bonds, the Company’s strategic investment in Lysogene S.A. and certificates of deposit. Certain of the government and government agency bonds are publicly traded fixed income securities and are presented as cash equivalents on the unaudited condensed consolidated balance sheets as of March 31, 2021.

The Company’s assets with fair value categorized as Level 3 within the fair value hierarchy consist of a strategic investment in Series A preferred stock of Lacerta Therapeutics, Inc. (“Lacerta”) and strategic investments in Series A and Series B preferred stock of two other private companies. For more information related to Lacerta, please read Note 3, License and Collaboration Agreements of the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. The fair value of the Lacerta investment was initially based on a cost approach corroborated by the Black-Scholes option pricing model. The most significant assumptions in the option pricing model include historical volatility of similar public companies, estimated term through Lacerta’s potential exit and a risk-free rate based on certain U.S. Treasury rates. The investment in the other two private companies are recorded at fair value at the time of purchase as measured by their respective investment cost. At the end of each reporting period, the fair value of investments in equity securities will be adjusted if the issuers were to issue similar or identical equity securities or when there is a triggering event for impairment. There were no changes in the fair value of the strategic investments during the three months ended March 31, 2021, other than the additional investment of $1.8 million in Series B preferred stock of a private company.

The Company’s contingent consideration liability with fair value categorized as Level 3 within the fair value hierarchy relate to the regulatory-related contingent payments to Myonexus Therapeutics, Inc. (“Myonexus”) selling shareholders as well as to two academic institutions under separate license agreements that meet the definition of a derivative. For more information related to Myonexus, please read Note 3, License and Collaboration Agreements of the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. The contingent consideration liability was estimated using an income approach based on the probability-weighted expected cash flows that incorporated industry-based probability adjusted assumptions relating to the achievement of the milestone and thus the likelihood of making the payments. This fair value measurement was based upon significant inputs not observable in the market and therefore represented a Level 3 measurement. Significant changes which increase or decrease the probabilities of achieving the milestone or shorten or lengthen the time required to achieve the milestone would result in a corresponding increase or decrease in the fair value of the liability. At the end of each reporting period, the fair value is adjusted to reflect the most current assumptions through earnings.

There were no transfers between levels 1, 2 and 3 during the three months ended March 31, 2021. For the three months ended March 31, 2021, there have been no changes to the fair value of the contingent consideration liability. As of March 31, 2021, the contingent consideration was recorded as a non-current liability on the Company’s unaudited condensed consolidated balance sheets.

The carrying amounts reported in the unaudited condensed consolidated balance sheets for cash and cash equivalents, accounts receivable and accounts payable approximated fair value because of the short-term maturity of these financial instruments.