Heery Christopher 4
4 · Arcellx, Inc. · Filed Jan 6, 2026
Insider Transaction Report
Form 4
Arcellx, Inc.ACLX
Heery Christopher
CHIEF MEDICAL OFFICER
Transactions
- Exercise/Conversion
Common Stock
2026-01-02+13,021→ 13,615 total - Exercise/Conversion
Common Stock
2026-01-03+16,520→ 30,135 total - Exercise/Conversion
Common Stock
2026-01-06+13,064→ 43,199 total - Award
Restricted Stock Unit
2026-01-02+67,708→ 67,708 total→ Common Stock (67,708 underlying) - Exercise/Conversion
Restricted Stock Unit
2026-01-02−13,021→ 13,021 total→ Common Stock (13,021 underlying) - Exercise/Conversion
Restricted Stock Unit
2026-01-03−16,520→ 0 total→ Common Stock (16,520 underlying) - Exercise/Conversion
Restricted Stock Unit
2026-01-06−13,064→ 39,194 total→ Common Stock (13,064 underlying)
Footnotes (6)
- [F1]Includes 284 shares acquired under the Issuer's 2022 Employee Stock Purchase Plan on May 14, 2025, and 310 shares acquired under the Issuer's 2022 Employee Stock Purchase Plan on November 14, 2024.
- [F2]Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.
- [F3]Subject to the Reporting Person continuing to be a Service Provider (as defined in the Issuer's 2022 Equity Incentive Plan) through each applicable vesting date, one-fourth (1/4th) of the RSUs subject to the award will vest each year following the RSU Grant Date on the same day of the month as the RSU Grant Date (or, if there is no corresponding day in a particular month, then the last day of the month) over four (4) years. "RSU Grant Date" shall mean January 2, 2026.
- [F4]Subject to the Reporting Person continuing to be a Service Provider (as defined in the Issuer's 2022 Equity Incentive Plan) through each applicable vesting date, one-third (1/3rd) of the RSUs subject to the award will vest each year following the RSU Grant Date on the same day of the month as the RSU Grant Date (or, if there is no corresponding day in a particular month, then the last day of the month) over three (3) years. "RSU Grant Date" shall mean January 2, 2024.
- [F5]Subject to the Reporting Person continuing to be a Service Provider (as defined in the Issuer's 2022 Equity Incentive Plan) through each applicable vesting date, one-third (1/3rd) of the RSUs subject to the award will vest each year following the RSU Grant Date on the same day of the month as the RSU Grant Date (or, if there is no corresponding day in a particular month, then the last day of the month) over three (3) years. "RSU Grant Date" shall mean January 3, 2023.
- [F6]Subject to the Reporting Person continuing to be a Service Provider (as defined in the Issuer's 2022 Equity Incentive Plan) through each applicable vesting date, one-fourth (1/4th) of the RSUs subject to the award will vest each year following the RSU Grant Date on the same day of the month as the RSU Grant Date (or, if there is no corresponding day in a particular month, then the last day of the month) over four (4) years. "RSU Grant Date" shall mean January 6, 2025.