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Share-based Compensation | 12 Months Ended
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Dec. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Share-based Compensation | 15. SHARE-BASED COMPENSATION Share-Based Compensation Expense The following table presents share-based compensation expense from continuing and discontinued operations included in the Company’s consolidated statements of operations and comprehensive income (loss):
|  | Year Ended December 31, |
(In thousands) |  | 2023 |  |  | 2022 |  |  | 2021 |
Cost of goods manufactured and sold |  | $ | 11,353 |  |  | $ | 10,284 |  |  | $ | 9,175 |
Research and development |  |  | 25,753 |  |  |  | 23,289 |  |  |  | 21,396 |
Selling, general and administrative |  |  | 55,611 |  |  |  | 54,104 |  |  |  | 51,861 |
Share-based compensation expense from continuing operations |  |  | 92,717 |  |  |  | 87,677 |  |  |  | 82,432 |
Cost of goods manufactured and sold |  |  | — |  |  |  | — |  |  |  | — |
Research and development |  |  | 3,255 |  |  |  | 4,652 |  |  |  | 3,481 |
Selling, general and administrative |  |  | 4,933 |  |  |  | 1,925 |  |  |  | 1,709 |
Share-based compensation expense from discontinued operations |  |  | 8,188 |  |  |  | 6,577 |  |  |  | 5,190 |
Total share-based compensation expense |  | $ | 100,905 |  |  | $ | 94,254 |  |  | $ | 87,622 |
During the years ended December 31, 2023, 2022 and 2021, $3.2 million, $3.3 million and $2.3 million, respectively, of share-based compensation expense was capitalized and recorded as “Inventory” in the accompanying consolidated balance sheets. Share-Based Compensation Plans The Company has one share-based compensation plan pursuant to which awards are currently being made: the 2018 Stock Option and Incentive Plan, as amended (the “2018 Plan”). The Company has two share-based compensation plans pursuant to which outstanding awards have been made, but from which no further awards can or will be made: the Alkermes plc Amended and Restated 2008 Stock Option and Incentive Plan, as amended, (the “2008 Plan”) and the Alkermes plc 2011 Stock Option and Incentive Plan, as amended (the “2011 Plan,” and together with the 2018 Plan and the 2008 Plan, the “the Alkermes Stock Option and Incentive Plans”). Effective May 20, 2020, the 2018 Plan was amended such that any shares underlying any outstanding awards granted under the 2011 Plan or the 2008 Plan that are forfeited, canceled, repurchased or otherwise terminated (other than by exercise) from and after such date will become available for issuance pursuant to the 2018 Plan, notwithstanding anything to the contrary in the terms of the 2011 Plan or the 2008 Plan. The 2018 Plan allows for the issuance of non-qualified and incentive stock options, restricted stock, restricted stock unit awards, cash-based awards and performance shares to employees, officers and directors of, and consultants to, the Company in such amounts and with such terms and conditions as may be determined by the compensation committee of the Company’s board of directors, subject to the provisions of the 2018 Plan, as applicable. On June 29, 2023, the Company’s shareholders approved an amended version of the Alkermes plc 2018 Stock Option and Incentive Plan that served to, among other things, increase the number of ordinary shares authorized for issuance thereunder by 6.5 million. At December 31, 2023, there were 15.1 million ordinary shares available for issuance in the aggregate under the 2018 Plan. The 2018 Plan provides that awards other than stock options will be counted against the total number of shares available under the plan in a 1.8-to-1 ratio. In connection with the Separation and in accordance with the provisions of the Alkermes Stock Option and Incentive Plans, the Company adjusted outstanding equity awards as described in Note 2, Significant Accounting Policies within these “Notes to consolidated financial statements” in this Annual Report, and specifically the section entitled “Conversion and Modification of Equity Awards Outstanding at Separation Date”. The incremental number of ordinary shares underlying each award that was outstanding immediately prior to the Separation is included as “Conversion Reissuance” in each of the associated tables below. Stock Options A summary of stock option activity is presented in the following table:
|  | Number of |  |  | Weighted Average |
|  | Shares |  |  | Exercise Price |
Outstanding, January 1, 2023 |  |  | 17,596,961 |  |  | $ | 33.32 |
Granted |  |  | 3,479,898 |  |  | $ | 27.88 |
Conversion Reissuance |  |  | 357,146 |  |  | $ | 32.26 |
Exercised |  |  | (772,207 | ) |  | $ | 21.70 |
Expired |  |  | (1,334,719 | ) |  | $ | 37.02 |
Forfeited |  |  | (1,187,176 | ) |  | $ | 26.56 |
Outstanding, December 31, 2023 |  |  | 18,139,903 |  |  | $ | 32.28 |
Exercisable, December 31, 2023 |  |  | 11,054,082 |  |  | $ | 37.24 |
The weighted average grant date fair value of stock options granted during the years ended December 31, 2023, 2022 and 2021 was $13.74, $12.62 and $10.09, respectively. The aggregate intrinsic value of stock options exercised during the years ended December 31, 2023, 2022 and 2021 was $6.0 million, $11.6 million and $8.3 million, respectively. At December 31, 2023, there were 6.9 million stock options expected to vest, with a weighted average exercise price of $24.46 per share, a weighted average contractual remaining life of 8.0 years and an aggregate intrinsic value of $24.6 million. At December 31, 2023, the aggregate intrinsic value of stock options exercisable was $29.4 million with a weighted average remaining contractual term of 4.5 years. The number of stock options expected to vest was determined by applying the pre-vesting forfeiture rate to the total number of outstanding options. The intrinsic value of a stock option is the amount by which the market value of the underlying shares exceeds the exercise price of the stock option. At December 31, 2023, there was $33.0 million of unrecognized share-based compensation expense related to unvested stock options, which is expected to be recognized over a weighted average period of 1.9 years. Time-Based Restricted Stock Unit Awards A summary of time-based RSU activity is presented in the following table:
|  |  |  |  | Weighted Average |
|  | Number of Shares |  |  | Grant Date Fair Value |
Unvested, January 1, 2023 |  |  | 6,625,422 |  |  | $ | 23.34 |
Granted |  |  | 2,884,122 |  |  | $ | 27.65 |
Conversion reissuance |  |  | 110,015 |  |  | $ | 24.19 |
Forfeited |  |  | (1,368,705 | ) |  | $ | 25.17 |
Vested |  |  | (2,593,276 | ) |  | $ | 24.31 |
Unvested, December 31, 2023 |  |  | 5,657,578 |  |  | $ | 24.18 |
The weighted average grant date fair values of time-vesting RSUs granted during the years ended December 31, 2023, 2022 and 2021 were $27.65, $25.27 and $20.83, respectively. The total fair value of time-vesting RSUs that vested during the years ended December 31, 2023, 2022 and 2021, was $63.0 million, $54.3 million and $56.3 million, respectively. At December 31, 2023, there was $55.4 million of total unrecognized share-based compensation expense related to unvested time-vesting RSUs, which will be recognized over a weighted average remaining contractual term of 1.9 years. Performance-Based Restricted Stock Unit Awards In February 2023, 2022 and 2021, the compensation committee of the Company’s board of directors approved awards of performance-based RSUs to employees of the Company at the Senior Vice President level and above, in each case subject to vesting based on the achievement of certain financial, commercial and/or R&D performance criteria to be assessed over a performance period of three years from the date of the grant, and subject, at the end of such three-year performance period, to upward or downward adjustment based on a market condition tied to relative share price performance over the three-year performance period. A summary of performance-based RSU activity is presented in the following table:
|  |  |  |  | Weighted Average |
|  | Number of Shares |  |  | Grant Date Fair Value |
Unvested, January 1, 2023 |  |  | 1,349,634 |  |  | $ | 26.05 |
Granted |  |  | 667,565 |  |  | $ | 29.91 |
Conversion reissuance |  |  | 30,244 |  |  | $ | 27.15 |
Forfeited |  |  | (248,711 | ) |  | $ | 24.06 |
Vested |  |  | (252,375 | ) |  | $ | 23.43 |
Unvested, December 31, 2023 |  |  | 1,546,357 |  |  | $ | 27.95 |
The weighted average grant date fair values of performance-based RSUs granted during the years ended December 31, 2023, 2022 and 2021 were $29.91, $30.73 and $23.09, respectively. The total fair value of performance-based RSUs that vested during the years ended December 31, 2023, 2022 and 2021 were $5.9 million, none and $4.2 million, respectively. At December 31, 2023, there was $2.5 million of unrecognized share-based compensation expense related to performance-based RSUs granted in February 2022 and 2023, which would be recognized in accordance with the terms of the awards when the Company deems it probable that the performance criteria will be met. The Company has additional unrecognized share-based compensation expense related to performance-based RSUs that were granted in February 2021. As of December 31, 2023, the financial performance criteria for these awards were deemed not probable of being achieved. On February 8, 2024, the compensation committee of the Company’s board of directors determined that the Company partially achieved the financial performance criteria. This was considered a modification in accordance with FASB ASC 718, Compensation—Stock Compensation and resulted in a modification charge of approximately $6.8 million. On February 8, 2024, the compensation committee of the Company’s board of directors also determined that the Company achieved the pipeline performance criteria for these awards, resulting in a $2.6 million incremental share-based compensation expense, as it was deemed such pipeline performance criteria had been met. The share-based compensation expense related to these achievements will be recognized in 2024.

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