11. Stockholders’ Equity and Stock-Based Compensation

Common Stock

As of September 30, 2024, the issued shares of Class A common stock include 728,548 treasury shares that were reacquired in connection with the redemption of redeemable shares in March 2019.

Stock Incentive Plans

On November 28, 2018, the Board of Directors of the Company adopted, and on December 10, 2018 the Company’s stockholders approved, the Organogenesis 2018 Equity Incentive Plan (the 2018 Plan). At the adoption of the 2018 Plan, a total of 9,198,996 shares of Class A common stock was authorized to be issued (subject to adjustment in the case of any stock dividend, stock split, reverse stock split, or similar change in capitalization of the Company). In June 2022, the 2018 Plan was amended to increase the number of shares of Class A common stock reserved for issuance by 7,826,970 shares. In June 2024, the 2018 Plan was amended to increase the number of shares of Class A common stock reserved for issuance by 15,900,000 shares.

The Organogenesis 2003 Stock Incentive Plan (the 2003 Plan), provided for the Company to issue restricted stock awards, or to grant incentive stock options or non-statutory stock options. Effective December 10, 2018, no additional awards may be made under the 2003 Plan.

Stock-Based Compensation Expense

Stock options awarded under the stock incentive plans expire 10 years after the grant date and typically vest over four or five years. Restricted stock units awarded typically vest over four years.

Stock-based compensation expense was $2,712, $7,687, $2,417, and $6,630 for the three and nine months ended September 30, 2024 and 2023, respectively. The total amount of stock-based compensation expense was included within selling, general and administrative expenses on the condensed consolidated statements of operations and comprehensive income (loss).

Restricted Stock Units (RSUs)

The Company granted 1,914,335 and 3,192,372 time-based restricted stock units to its employees, executives and members of the Board of Directors in the nine months ended September 30, 2024 and 2023, respectively. Each restricted stock unit represents the contingent right to receive one share of the Company’s Class A common stock. A majority of the restricted stock units will vest in four equal annual installments. The fair value of the restricted stock units was based on the fair market value of the Company’s stock on the date of grant.

As of September 30, 2024, the total unrecognized compensation cost related to unvested restricted stock units expected to vest was $8,935 and the weighted average remaining recognition period for unvested awards was 2.47 years.

Stock Options

The stock options granted during the nine months ended September 30, 2024 and 2023 were 2,640,601 and 3,554,528, respectively.

The aggregate intrinsic value of stock options is calculated as the difference between the exercise price of the stock options and the fair value of the Company’s Class A common stock for those stock options that have exercise prices lower than the fair value of the Company’s Class A common stock.

The weighted-average grant-date fair value per share of stock options granted during the nine months ended September 30, 2024 and 2023 was $1.89 and $1.32, respectively. The total fair value of options vested during the nine months ended September 30, 2024 and 2023 was $4,136 and $3,117, respectively.

As of September 30, 2024, the total unrecognized stock compensation expense related to unvested stock options expected to vest was $7,464 and was expected to be recognized over a weighted-average period of 2.48 years.