Christopher Heery - Jan 2, 2024 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
Jan 2, 2024
Transactions value $
$0
Form type
4
Date filed
1/4/2024, 07:32 PM
Previous filing
Dec 19, 2023
Next filing
Jan 8, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ACLX Common Stock Options Exercise $0 +16.5K +184.82% $0.00 25.5K Jan 3, 2024 Direct F1, F2

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 Stock Option (right to buy) Award $0 +60.1K $0.00 60.1K Jan 2, 2024 Common Stock 60.1K $56.15 Direct F3
transaction ACLX Restricted Stock Unit Award $0 +39.1K $0.00 39.1K Jan 2, 2024 Common Stock 39.1K Direct F1, F4
transaction ACLX Restricted Stock Unit Options Exercise $0 -16.5K -33.33% $0.00 33K Jan 3, 2024 Common Stock 16.5K Direct F1, F5
* 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.
F2 Includes 753 shares acquired under the Issuer's 2022 Employee Stock Purchase Plan on May 12, 2023 and 390 shares acquired under the Issuer's 2022 Employee Stock Purchase Plan on November 14, 2023.
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 forty-eighth (1/48th) of the shares subject to the option will vest each month following the Vesting Commencement Date on the same day of the month as the Vesting Commencement Date (or, if there is no corresponding day in a particular month, then the last day of the month) over four (4) years. "Vesting Commencement Date" shall mean January 1, 2024.
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.