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 June 30, 2019
	Total		Level 1		Level 2		Level 3
	(in thousands)
Assets
Money market funds	$	181,040	$	181,040	$	—	$	—
Commercial paper		87,370		—		87,370		—
Government and government agency bonds		677,242		677,242		—		—
Corporate bonds		19,982		19,982		—		—
Strategic equity investments		32,154		2,154		—		30,000
Certificates of deposit		1,001		1,001		—		—
Total assets	$	998,789	$	881,419	$	87,370	$	30,000

Liabilities
Contingent consideration	$	5,200	$	—	$	—	$	5,200
Total liabilities	$	5,200	$	—	$	—	$	5,200

	Fair Value Measurement as of December 31, 2018
	Total		Level 1		Level 2		Level 3
	(in thousands)
Assets
Money market funds	$	42,920	$	42,920	$	—	$	—
Commercial paper		125,907		—		125,907		—
Government and government agency bonds		760,235		760,235		—		—
Corporate bonds		43,468		43,468		—		—
Strategic equity investments		31,739		1,739		—		30,000
Certificates of deposit		1,001		1,001		—		—
Total	$	1,005,270	$	849,363	$	125,907	$	30,000

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, corporate bonds, the Company’s strategic investment in Lysogene S.A. and certificates of deposit. Certain of the government and government agency bonds are traded fixed income securities and are presented as cash equivalents on the unaudited condensed consolidated balance sheets as of June 30, 2019.

The Company’s assets with fair value categorized as Level 2 within the fair value hierarchy consist of commercial paper. These assets have been initially valued at the transaction price and subsequently valued, at the end of each reporting period, through income-based approaches utilizing market observable data.

The Company’s asset with fair value categorized as Level 3 within the fair value hierarchy consists of a strategic investment in Series A preferred stock of Lacerta Therapeutics, Inc. (“Lacerta”) as more fully described in Note 3, License and Collaboration Agreements of the Annual Report on the Form 10-K for the year ended December 31, 2018. The fair value of the asset was initially based on a cost approach corroborated by the Black-Scholes option pricing model. At the end of each reporting period, the fair value will be adjusted if Lacerta issues similar or identical equity securities or when there is a triggering event for impairment.

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 selling shareholders as well as to an academic institution under a separate license agreement that meet the definition on a derivative. For more information related to Myonexus, please read Note 3, License and Collaboration Agreements. This amount was estimated through 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. At the end of each reporting period, the fair value will be adjusted to reflect the most current assumptions through earnings. As of June 30, 2019, 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, accounts payable, and revolving line of credit approximated fair value because of the immediate or short-term maturity of these financial instruments. The carrying amounts for the term loan approximated fair value based on market activity for other debt instruments with similar characteristics and comparable risk.