Christopher Heery - Feb 24, 2025 Form 4 Insider Report for Arcellx, Inc. (ACLX)

Role
CHIEF MEDICAL OFFICER
Signature
/s/ Michelle Gilson, as Attorney-in-Fact
Stock symbol
ACLX
Transactions as of
Feb 24, 2025
Transactions value $
-$647,773
Form type
4
Date filed
2/24/2025, 08:00 PM
Previous filing
Feb 11, 2025
SEC
View on sec.gov

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ACLX Common Stock Options Exercise $0 +22.6K +89.92% $0.00 47.6K Feb 7, 2025 Direct F1
transaction ACLX Common Stock Sale -$276K -4.37K -9.17% $63.14 43.3K Feb 24, 2025 Direct F2, F3
transaction ACLX Common Stock Sale -$358K -5.58K -12.89% $64.26 37.7K Feb 24, 2025 Direct F2, F4
transaction ACLX Common Stock Sale -$13.5K -208 -0.55% $64.88 37.5K Feb 24, 2025 Direct F2, F5

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction ACLX Restricted Stock Unit Options Exercise $0 -22.6K -100% $0.00 0 Feb 7, 2025 Common Stock 22.6K Direct F1, F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock. Vesting of these RSUs previously reported in the Form 4 filed February 11, 2025.
F2 Represents a broker-assisted sale to satisfy the Reporting Person's tax withholding obligations in connection with the vesting of restricted stock units.
F3 Represents the weighted average share price of an aggregate total of 4,370 shares sold in the price range of $62.79 to $63.775 by the Reporting Person. The Reporting Person undertakes to provide upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
F4 Represents the weighted average share price of an aggregate total of 5,577 shares sold in the price range of $63.825 to $64.805 by the Reporting Person. The Reporting Person undertakes to provide upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
F5 Represents the weighted average share price of an aggregate total of 208 shares sold in the price range of $64.845 to $64.89 by the Reporting Person. The Reporting Person undertakes to provide upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
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-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 February 7, 2022.