Insider Transactions Reported by 23 Insiders of Arcellx, Inc.

Symbol
ACLX on Nasdaq
Location
Redwood City, CA

Insiders trading volume in the past year

Arcellx, Inc. executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
GILEAD SCIENCES, INC. 10%+ Owner $371,444,668 28 Dec 2023
NEA Partners 15, L.P. 10%+ Owner $262,260,666 20 Dec 2022
New Enterprise Associates 15, L.P. 10%+ Owner $262,260,666 20 Dec 2022
Novo Holdings A/S 10%+ Owner $222,004,412 08 Feb 2022
Lewis T. "rusty" Williams Director $115,792,551 08 Feb 2022
SR ONE CAPITAL MANAGEMENT, LLC 10%+ Owner $91,677,287 11 May 2023
Rami Elghandour President, CEO and Chairman of the Board, Director $34,559,223 -$10,243,267 -23% 04 Mar 2026
Michelle Gilson Chief Financial Officer $13,363,005 -$4,419,000 -25% 25 Feb 2026
Christopher Heery Chief Medical Officer $1,627,129 -$4,314,293 -73% 14 Jan 2026
David Charles Lubner Director $1,624,425 -$450,000 -22% 20 Jan 2026
Andrew H. Galligan Director $358,200 29 May 2025
Ali Behbahani Director $303,561 12 Aug 2025
Mohamad Makhzoumi 10%+ Owner $15,641 20 Dec 2022
Peter W. Sonsini 10%+ Owner $663 20 Dec 2022
Kavita Patel Director $0 -$371,235 -100% 10 Jun 2025
Forest Baskett 10%+ Owner 20 Dec 2022
Olivia C. Ware Director 29 May 2025
Scott D. Sandell 10%+ Owner 23 Dec 2022
Jill Carroll Director 29 May 2025
Lance E. Thibault Interim Chief Financial Officer Exhibit 24 - Power of Attorney 03 Feb 2022
Kristin Myers Director 29 May 2025
Anthony A. Florence Jr. 10%+ Owner 20 Dec 2022
Derek Yoon Director 28 May 2024

Recent Insider Transactions by Companies or Individuals for Arcellx, Inc.

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Rami Elghandour ACLX Common Stock Gift -36.6% -101,164 174,887 04 Mar 2026 Direct
Rami Elghandour ACLX Common Stock Sale -24.6% $10,243,267 $113.92 -89,916 276,051 27 Feb 2026 Direct
Michelle Gilson ACLX Common Stock Sale -24.8% $1,276,954 $113.82 -11,219 33,938 25 Feb 2026 Direct
Michelle Gilson ACLX Common Stock Sale -15.7% $572,568 $68.29 -8,384 45,157 19 Feb 2026 Direct
Michelle Gilson ACLX Common Stock Sale -17.4% $784,783 $69.51 -11,291 53,541 17 Feb 2026 Direct
Rami Elghandour ACLX Common Stock Gift -35.1% -198,000 365,967 11 Feb 2026 Direct
Rami Elghandour ACLX Common Stock Gift -27.9% -218,500 563,967 11 Feb 2026 Direct
David Charles Lubner ACLX Common Stock Sale -21.7% $450,000 $75.00 -6,000 21,659 20 Jan 2026 Direct
David Charles Lubner ACLX Common Stock Options Exercise 27.7% 6,000 27,659 20 Jan 2026 Direct
David Charles Lubner ACLX Stock Option (right to buy) Options Exercise -9.17% -6,000 59,405 20 Jan 2026 Direct
Christopher Heery ACLX Common Stock Sale -19.8% $402,997 $68.51 -5,882 23,749 14 Jan 2026 Direct
Christopher Heery ACLX Common Stock Sale -20.1% $487,213 $65.51 -7,437 29,631 13 Jan 2026 Direct
Christopher Heery ACLX Common Stock Sale -14.2% $393,286 $64.15 -6,131 37,068 12 Jan 2026 Direct
Rami Elghandour ACLX Common Stock Options Exercise 7.71% 55,991 782,467 06 Jan 2026 Direct
Michelle Gilson ACLX Common Stock Options Exercise 46.3% 20,530 64,832 06 Jan 2026 Direct
Christopher Heery ACLX Common Stock Options Exercise 43.4% 13,064 43,199 06 Jan 2026 Direct
Christopher Heery ACLX Common Stock Options Exercise 43.4% 13,064 43,199 06 Jan 2026 Direct
Christopher Heery ACLX Restricted Stock Unit Options Exercise -25% -13,064 39,194 06 Jan 2026 Direct
Rami Elghandour ACLX Common Stock Options Exercise 7.71% 55,991 782,467 06 Jan 2026 Direct
Rami Elghandour ACLX Restricted Stock Unit Options Exercise -25% -55,991 167,973 06 Jan 2026 Direct
Michelle Gilson ACLX Common Stock Options Exercise 46.3% 20,530 64,832 06 Jan 2026 Direct
Michelle Gilson ACLX Restricted Stock Unit Options Exercise -25% -20,530 61,590 06 Jan 2026 Direct
Rami Elghandour ACLX Common Stock Options Exercise 7.89% 53,098 726,476 03 Jan 2026 Direct
Michelle Gilson ACLX Common Stock Options Exercise 53% 15,340 44,302 03 Jan 2026 Direct
Christopher Heery ACLX Common Stock Options Exercise 121.3% 16,520 30,135 03 Jan 2026 Direct
Christopher Heery ACLX Common Stock Options Exercise 121.3% 16,520 30,135 03 Jan 2026 Direct
Christopher Heery ACLX Restricted Stock Unit Options Exercise -100% -16,520 0 03 Jan 2026 Direct
Rami Elghandour ACLX Common Stock Options Exercise 7.89% 53,098 726,476 03 Jan 2026 Direct
Rami Elghandour ACLX Restricted Stock Unit Options Exercise -100% -53,098 0 03 Jan 2026 Direct
Michelle Gilson ACLX Common Stock Options Exercise 53% 15,340 44,302 03 Jan 2026 Direct
Michelle Gilson ACLX Restricted Stock Unit Options Exercise -100% -15,340 0 03 Jan 2026 Direct
Rami Elghandour ACLX Common Stock Options Exercise 8.98% 55,459 673,378 02 Jan 2026 Direct
Michelle Gilson ACLX Common Stock Options Exercise 242.1% 20,496 28,962 02 Jan 2026 Direct
Christopher Heery ACLX Common Stock Options Exercise 2192.1% 13,021 13,615 02 Jan 2026 Direct
Christopher Heery ACLX Common Stock Options Exercise 2192.1% 13,021 13,615 02 Jan 2026 Direct
Christopher Heery ACLX Restricted Stock Unit Options Exercise -50% -13,021 13,021 02 Jan 2026 Direct
Christopher Heery ACLX Restricted Stock Unit Award 67,708 67,708 02 Jan 2026 Direct
Rami Elghandour ACLX Common Stock Options Exercise 8.98% 55,459 673,378 02 Jan 2026 Direct
Rami Elghandour ACLX Restricted Stock Unit Options Exercise -50% -55,459 55,459 02 Jan 2026 Direct
Rami Elghandour ACLX Restricted Stock Unit Award 208,333 208,333 02 Jan 2026 Direct
Michelle Gilson ACLX Common Stock Options Exercise 242.1% 20,496 28,962 02 Jan 2026 Direct
Michelle Gilson ACLX Restricted Stock Unit Options Exercise -50% -20,496 20,496 02 Jan 2026 Direct
Michelle Gilson ACLX Restricted Stock Unit Award 88,542 88,542 02 Jan 2026 Direct
Christopher Heery ACLX Common Stock Sale -54.5% $30,600 $90.00 -340 284 17 Nov 2025 Direct
Michelle Gilson ACLX Common Stock Sale -38.8% $488,315 $91.04 -5,364 8,466 15 Oct 2025 Direct
Michelle Gilson ACLX Common Stock Sale -7.14% $91,733 $86.22 -1,064 13,830 06 Oct 2025 Direct
Michelle Gilson ACLX Common Stock Sale -24.7% $419,870 $86.00 -4,882 14,894 03 Oct 2025 Direct
Christopher Heery ACLX Common Stock Sale -97.1% $1,709,723 $81.28 -21,034 624 30 Sep 2025 Direct
Christopher Heery ACLX Common Stock Sale -0.34% $5,852 $80.16 -73 21,658 29 Sep 2025 Direct
Christopher Heery ACLX Common Stock Sale -36.3% $993,155 $80.12 -12,396 21,731 26 Sep 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.