Christopher Heery - Dec 18, 2023 Form 4 Insider Report for Arcellx, Inc. (ACLX)

Role
Chief Medical Officer
Signature
/s/ Rami Elghandour, as Attorney-in-Fact
Stock symbol
ACLX
Transactions as of
Dec 18, 2023
Transactions value $
-$5,266,681
Form type
4
Date filed
12/19/2023, 04:43 PM
Previous filing
Aug 7, 2023
Next filing
Jan 4, 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ACLX Common Stock Options Exercise $754K +120K +1539.45% $6.28* 128K Dec 18, 2023 Direct
transaction ACLX Common Stock Sale -$5.35M -107K -83.66% $50.06 20.9K Dec 18, 2023 Direct F1
transaction ACLX Common Stock Sale -$625K -12.2K -58.63% $51.03 8.64K Dec 18, 2023 Direct F2
transaction ACLX Common Stock Sale -$43.8K -845 -9.78% $51.86 7.8K Dec 18, 2023 Direct F3

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) Options Exercise $0 -120K -49.87% $0.00 121K Dec 18, 2023 Common Stock 120K $6.28 Direct F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents the weighted average share price of an aggregate total of 106,912 shares sold in the price range of $49.69 to $50.685 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.
F2 Represents the weighted average share price of an aggregate total of 12,243 shares sold in the price range of $50.69 to $51.66 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.
F3 Represents the weighted average share price of an aggregate total of 845 shares sold in the price range of $51.69 to $52.02 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 Shares issued pursuant to the Issuer's 2017 Equity Incentive Plan (the "2017 Plan"). Subject to the Reporting Person continuing to be a Service Provider (as defined 2017 Plan) through each applicable date, twenty-five percent (25%) of the shares subject to the option shall vest on the one (1) year anniversary of the Vesting Commencement Date, and one forty-eighth (1/48th) of the shares subject to the option shall vest each month thereafter on the same day of the month as the Vesting Commencement Date (and if there is no corresponding day, on the last day of the month). "Vesting Commencement Date" shall mean April 26, 2021.