Form: SCHEDULE 13D/A

General Statement of Acquisition of Beneficial Ownership

June 18, 2026






If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. Checkbox not checked

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).




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SCHEDULE 13D




Comment for Type of Reporting Person:
Footnote to Rows 7 and 9: (A) Consists of (i) 22,888 shares held by Warren B. Kanders, (ii) 1,305,650 shares held by Warren B. Kanders Roth IRA, (iii) 9,692,039 shares held by Kanders SAF, LLC ("Kanders SAF"); and (iv) options to purchase an aggregate of 348,901 shares of common stock which were previously granted under the Issuer's 2021 Stock Incentive Plan and that are presently exercisable or exercisable within 60 days of the date hereof; and (B) excludes, without duplication, (i) 258,266 shares underlying stock options to purchase shares of common stock which were previously granted under the Issuer's 2021 Stock Incentive Plan and that are not presently exercisable or exercisable within 60 days of the date hereof; (ii) 80,974 shares underlying restricted stock units which were previously granted under the Issuer's 2021 Stock Incentive Plan and that are not presently vested or vesting within 60 days of the date hereof; (iii) 261,000 shares underlying restricted stock units granted under the Issuer's 2021 Stock Incentive Plan that will vest only if, on or before June 16, 2033, the Issuer's common stock achieves a volume-weighted average trading price ("VWAP") of at least $60.00 per share over a 20 consecutive trading day measurement period; (iv) 373,000 shares underlying restricted stock units granted under the Issuer's 2021 Stock Incentive Plan that will vest only if, on or before June 16, 2033, the Issuer's common stock achieves a VWAP of at least $80.00 per share over a 20 consecutive trading day measurement period; (v) 496,500 shares underlying stock options granted under the Issuer's 2021 Stock Incentive Plan that will vest and become exercisable only if, on or before June 16, 2033, the Issuer's common stock achieves a VWAP of at least $60.00 per share over a 20 consecutive trading day measurement period; and (vi) 616,500 shares underlying stock options granted under the Issuer's 2021 Stock Incentive Plan that will vest and become exercisable only if, on or before June 16, 2033, the Issuer's common stock achieves a VWAP of at least $80.00 per share over a 20 consecutive trading day measurement period. Mr. Kanders is the sole member and manager of Kanders SAF, and accordingly all of the shares of the Issuer's common stock held by Kanders SAF may be deemed to be beneficially owned by Mr. Kanders. Footnote to Rows 8 and 10: Consists of 23,450 shares held by Allison Kanders Roth IRA. Allison Kanders is the wife of Mr. Kanders, and accordingly all of the shares of the Issuer's common stock held by Allison Kanders Roth IRA may be deemed to be beneficially owned by Mr. Kanders. Mr. Kanders disclaims beneficial ownership of the shares held by Allison Kanders Roth IRA, except to the extent of his pecuniary interest therein. Footnote to Row 11: The amount reported above as being beneficially owned by Mr. Kanders (A) includes, without duplication, the shares reported in Rows 7 and 9 plus the shares reported in Rows 8 and 10; and (B) excludes, without duplication, (i) 258,266 shares underlying stock options to purchase shares of the Issuer's common stock which were previously granted under the Issuer's 2021 Stock Incentive Plan and that are not presently exercisable or exercisable within 60 days of the date hereof; (ii) 80,974 shares underlying restricted stock units which were previously granted under the Issuer's 2021 Stock Incentive Plan and that are not presently vested or vesting within 60 days of the date hereof; (iii) 261,000 shares underlying restricted stock units granted under the Issuer's 2021 Stock Incentive Plan that will vest only if, on or before June 16, 2033, the Issuer's common stock achieves a VWAP of at least $60.00 per share over a 20 consecutive trading day measurement period; (iv) 373,000 shares underlying restricted stock units granted under the Issuer's 2021 Stock Incentive Plan that will vest only if, on or before June 16, 2033, the Issuer's common stock achieves a VWAP of at least $80.00 per share over a 20 consecutive trading day measurement period; (v) 496,500 shares underlying stock options granted under the Issuer's 2021 Stock Incentive Plan that will vest and become exercisable only if, on or before June 16, 2033, the Issuer's common stock achieves a VWAP of at least $60.00 per share over a 20 consecutive trading day measurement period; and (vi) 616,500 shares underlying stock options granted under the Issuer's 2021 Stock Incentive Plan that will vest and become exercisable only if, on or before June 16, 2033, the Issuer's common stock achieves a VWAP of at least $80.00 per share over a 20 consecutive trading day measurement period. Footnote to Row 13: The percentage of shares of common stock reported as being beneficially owned by Mr. Kanders is based upon 43,146,352 shares of common stock outstanding as of the date hereof, which includes: (i) 42,797,451 shares of common stock outstanding as of May 1, 2026, as set forth in the Issuer's Quarterly Report on Form 10-Q for the quarter ended March 31, 2026 filed with the Securities and Exchange Commission on May 11, 2026; and (ii) options to purchase an aggregate of 348,901 shares of common stock which were previously granted under the Issuer's 2021 Stock Incentive Plan and that are presently exercisable or exercisable within 60 days of the date hereof.


SCHEDULE 13D




Comment for Type of Reporting Person:
Footnote to Rows 7, 9 and 11: Mr. Kanders is the sole member and manager of Kanders SAF, and accordingly may be deemed to beneficially own all of the shares of the Company's common stock held by Kanders SAF. Footnote to Row 13: The percentage of shares of common stock reported as being beneficially owned by Kanders SAF is based upon 42,797,451 shares of common stock outstanding as of May 1, 2026, as set forth in the Issuer's Quarterly Report on Form 10-Q for the quarter ended March 31, 2026 filed with the Securities and Exchange Commission on May 11, 2026.


SCHEDULE 13D


 
Warren B. Kanders
 
Signature:/s/ Warren B. Kanders
Name/Title:Warren B. Kanders
Date:06/18/2026
 
Kanders SAF, LLC
 
Signature:/s/ Warren B. Kanders
Name/Title:Warren B. Kanders / Sole Manager
Date:06/18/2026