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Stock-based compensation | 6 Months Ended
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Jun. 30, 2026
Share-Based Payment Arrangement [Abstract] |
Stock-based compensation | Stock-based compensation On December 29, 2025, at the Company’s Annual Meeting, the 2025 HYMC Performance and Incentive Pay Plan (the “2025 PIPP Plan”) was approved. The 2025 PIPP Plan supersedes and replaces the 2020 HYMC Performance and Incentive Pay Plan (the “2020 PIPP Plan”), except with respect to awards granted under the 2020 PIPP Plan plus any shares of Common Stock which, as of the effective date of the 2025 PIPP Plan, were available for issuance under the 2020 PIPP Plan, or are subject to 2020 PIPP Plan awards which become available for future grants of awards as defined in the 2025 PIPP Plan. The 2020 PIPP Plan was approved on February 20, 2019, and amended on May 29, 2020, June 2, 2022, and May 23, 2024. All awards granted under the 2025 PIPP Plan and 2020 PIPP Plan were in the form of restricted stock units to employees and directors of the Company. As of June 30, 2026, there were 2,547,535 shares available for issuance under the 2025 PIPP Plan. The following tables summarize the Company’s unvested share awards outstanding as of June 30, 2026 and 2025:
|  | Number of Restricted Stock Units |  | Weighted Average Grant Date Fair Value Per Unit
Unvested at December 31, 2025 |  | 728,974 |  |  | $ | 3.56 |
Granted |  | 1,582,670 |  |  | 49.45 |
Canceled/forfeited |  | (14,457) |  |  | 9.13 |
Vested |  | (577,257) |  |  | 19.88 |
Unvested at June 30, 2026 |  | 1,719,930 |  | $ | 40.21 |
|  | Number of Restricted Stock Units |  | Weighted Average Grant Date Fair Value Per Unit
Unvested at December 31, 2024 |  | 678,071 |  |  | $ | 5.13 |
Granted |  | 491,949 |  |  | 3.13 |
Canceled/forfeited |  | (15,304) |  |  | 4.93 |
Vested |  | (415,464) |  |  | 5.37 |
Unvested at June 30, 2025 |  | 739,252 |  | $ | 3.67 |
During the three and six months ended June 30, 2026, the Company recorded compensation expense of $13.0 million and $32.2 million related to restricted stock awards. During the three and six months ended June 30, 2025, the Company recorded compensation expense of $0.6 million and $1.2 million related to restricted stock awards. As of June 30, 2026, there was $47.5 million of unrecognized compensation cost related to unvested restricted stock units, expected to be recognized over a weighted-average period of 1 year.

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