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Filing Details

Accession Number:: 0001415889-24-026654
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2024-11-12 20:30:16
Reporting Period:: 2024-11-07

Accepted Time:: 2024-11-12 20:30:16
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1786205	Arcellx Inc.	ACLX	()	4

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1670683	Kavita Patel	C/O Arcellx, Inc. 800 Bridge Parkway Redwood City CA 94065		No	No	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2024-11-07	8,478	$6.66	8,478	No	4	M	Direct
Common Stock	Disposition	2024-11-07	8,478	$99.30	0	No	4	S	Direct
Common Stock	Acquisiton	2024-11-08	7,976	$6.66	7,976	No	4	M	Direct
Common Stock	Acquisiton	2024-11-08	25,787	$15.00	33,763	No	4	M	Direct
Common Stock	Disposition	2024-11-08	5,900	$99.60	27,863	No	4	S	Direct
Common Stock	Disposition	2024-11-08	2,076	$100.57	25,787	No	4	S	Direct
Common Stock	Disposition	2024-11-08	25,787	$105.46	0	No	4	S	Direct
Common Stock	Acquisiton	2024-11-11	15,238	$15.00	15,238	No	4	M	Direct
Common Stock	Disposition	2024-11-11	12,233	$105.68	3,005	No	4	S	Direct
Common Stock	Disposition	2024-11-11	3,005	$106.91	0	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
No	4	M	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (right to buy)	Disposition	2024-11-07	8,478	$0.00	8,478	$6.66
Common Stock	Stock Option (right to buy)	Disposition	2024-11-08	7,976	$0.00	7,976	$6.66
Common Stock	Stock Option (right to buy)	Disposition	2024-11-08	25,787	$0.00	25,787	$15.00
Common Stock	Stock Option (right to buy)	Disposition	2024-11-11	15,238	$0.00	15,238	$15.00

Remaning Holdings	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
51,553	2031-12-07	No	4	M	Direct
43,577	2031-12-07	No	4	M	Direct
35,751	2032-02-03	No	4	M	Direct
20,513	2032-02-03	No	4	M	Direct

Footnotes

The sale of shares reported on this Form 4 was effected pursuant to a Rule 10b5-1 trading plan entered into by the Reporting Person on March 28, 2024.
Represents the weighted average share price of an aggregate total of 8,478 shares sold in the price range of $99.24 to $99.48 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.
Represents the weighted average share price of an aggregate total of 5,900 shares sold in the price range of $99.24 to $100.12 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.
Represents the weighted average share price of an aggregate total of 2,076 shares sold in the price range of $100.57 to $100.58 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.
Represents the weighted average share price of an aggregate total of 25,787 shares sold in the price range of $105.24 to $105.96 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.
Represents the weighted average share price of an aggregate total of 12,233 shares sold in the price range of $105.34 to $106.27 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.
Represents the weighted average share price of an aggregate total of 3,005 shares sold in the price range of $106.34 to $107.25 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.
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 in the 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 December 1, 2021.
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 shares subject to the option will vest each year following Equity Grant Date on the same day of the month as the Equity Grant Date (or, if there is no corresponding day in a particular month, then the last day of the month) over three (3) years. "Equity Grant Date" shall mean February 3, 2022.