Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements

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Fair Value Measurements
3 Months Ended
Mar. 31, 2022
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
The following table presents information about the Company’s financial assets and liabilities that are measured at fair value on a recurring basis as of March 31, 2022 and December 31, 2021, respectively, and indicates the fair value hierarchy of the valuation techniques that the Company utilized to determine such fair value.

Fair Value Measurements as of March 31, 2022
Level 1 Level 2 Level 3
Assets (in thousands)
Money market $ 104,639  $ —  $ — 
Investments 9,313  —  — 
Total assets at fair value $ 113,952  $ —  $ — 
Liabilities:
Derivative warrant liabilities - Public warrants $ 10,713  $ —  $ — 
Derivative warrant liabilities - Private placement warrants —  —  9,475 
Total liabilities at fair value $ 10,713  $ —  $ 9,475 

Fair Value Measurements as of December 31, 2021
Level 1 Level 2 Level 3
Assets (in thousands)
Money market $ 154,630  $ —  $ — 
Investments 13,498  —  — 
Total assets at fair value $ 168,128  $ —  $ — 
Liabilities:
Derivative warrant liabilities - Public warrants $ 10,713  $ —  $ — 
Derivative warrant liabilities - Private placement warrants —  —  9,475 
Total liabilities at fair value $ 10,713  $ —  $ 9,475 

Level 1 assets include investments in money market funds that invest solely in U.S. government securities. The Company uses inputs such as actual trade data, quoted market prices from dealers or brokers, and other similar sources to determine the fair value of our investments.
The Company’s warrant liability as of March 31, 2022 includes public and private placement warrants that were originally issued by NextGen and assumed by the Company as part of the Closing of the Business Combination (the “Public Warrants” and “Private Warrants,” respectively, or together, the “Public and Private Warrants”). The Public and Private Warrants are recorded on the condensed consolidated balance sheet at fair value. The carrying amount is subject to remeasurement at each balance sheet date. With each remeasurement, the carrying amount will be adjusted to fair value, with the change in fair value recognized in the Company’s condensed consolidated statements of operations and comprehensive loss. The Public Warrants are publicly-traded under the symbol “VORBW”, and the fair value of the Public Warrants at a specific date is determined by the closing price of the Public Warrants as of that date. As such, the Public Warrants are classified within Level 1 of the fair value hierarchy.

For periods where no observable traded price is available, the fair value of the Private Placement Warrants has been estimated using a Monte-Carlo simulation model. For periods subsequent to the detachment of the Public Warrants from the Units, the fair value of the Public Warrants is based on the observable listed price for such warrants. The estimated fair value of the Public and Private Placement Warrants, prior to the Public Warrants being traded in an active market, was determined using Level 3 inputs. Inherent in a Monte-Carlo simulation model are assumptions related to the Unit price, expected volatility, risk-free interest rate, term to expiration, and dividend yield. The Unit price is based on the publicly traded price of the Units as of the measurement date. The Company estimated the volatility for the Public and Private Placement Warrants based on an iterative approach to recalculate the implied volatility using a Monte-Carlo simulation model from the historical traded prices of the warrants. The risk-free interest rate is based on interpolated U.S. Treasury rates, commensurate with a similar term to the Public and Private Placement Warrants. The term to expiration was calculated as the contractual term of the Public and Private Placement Warrants, commencing on the later of: (i) 30 days after the Closing or (ii) twelve months from the date of the closing of NextGen’s initial public offering. Finally, the Company does not anticipate paying a dividend. Any changes in these assumptions can change the valuation significantly.

The change in the fair value of the private warrant liabilities, measured using Level 3 inputs, for the period from December 31, 2021 through March 31, 2022 is summarized as follows:

Private Placement Warrants
(in thousands)
Warrant liabilities at December 31, 2021 $ 9,475 
Change in fair value of derivative warrant liabilities — 
Warrant liabilities at March 31, 2022
$ 9,475