ACLX
Arcellx, Inc.
Insiders sold $13.3M net in the last 90 days ·3 sellers, 0 buyers· 1 of 5 sales under Rule 10b5-1 plans· latest Form 4 filed Feb 27, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$18.4M
reported sales (SEC code S)
Unique Insiders
4
in the rolling window
Latest filing
Apr 17, 2026
Elghandour Rami
Arcellx, Inc. (ACLX) has 22 SEC Form 4 filings (45 transaction rows) in the rolling window, disclosed by 4 distinct insiders. Most recent filing: Apr 17, 2026.
Inside the rolling window, 4 insiders at Arcellx, Inc. reported no open-market purchases and 15 open-market sales totaling $18.4M. The most active filer is CHIEF MEDICAL OFFICER Heery Christopher with 7 filings. Insiders have net sold $14.6M over the trailing 6 months. The most recent open-market filing is a sale of 89,916 shares by SEE REMARKS Elghandour Rami, dated Feb 27, 2026, worth $10.2M.
- Industry:Biotechnology
- CEO:Rami Elghandour
- Employees:163
- HQ:Redwood City, MD, US
- IPO:2022-02-04
| Source | |||||||
|---|---|---|---|---|---|---|---|
Elghandour RamiFirst filing | SEE REMARKS | Sale | 89,916 | $10.2M | Feb 27 | — | SEC ↗ |
| CHIEF FINANCIAL OFFICER | Sale | 11,219 | $1.3M | Feb 25 | — | SEC ↗ | |
| CHIEF FINANCIAL OFFICER | Sale | 8,384 | $573K | Feb 19 | — | SEC ↗ | |
Gilson MichelleFirst in 4 months | CHIEF FINANCIAL OFFICER | Sale | 11,291 | $785K | Feb 18 | — | SEC ↗ |
Lubner David CharlesFirst filing | Director | Sale | 6,000 | $450K | Jan 20 | — | SEC ↗ |
| CHIEF MEDICAL OFFICER | Sale | 5,882 | $403K | Jan 14 | — | SEC ↗ | |
| CHIEF MEDICAL OFFICER | Sale | 7,437 | $487K | Jan 13 | — | SEC ↗ | |
| CHIEF MEDICAL OFFICER | Sale | 6,131 | $393K | Jan 12 | — | SEC ↗ | |
| CHIEF MEDICAL OFFICER | Sale | 340 | $31K | Nov 17 | — | SEC ↗ | |
| CHIEF FINANCIAL OFFICER | Sale | 5,364 | $488K | Oct 15 | — | SEC ↗ | |
Gilson MichelleFirst filing | CHIEF FINANCIAL OFFICER | Sale | 4,882 | $420K | Oct 6 | — | SEC ↗ |
Gilson MichelleFirst filing | CHIEF FINANCIAL OFFICER | Sale | 1,064 | $92K | Oct 6 | — | SEC ↗ |
| CHIEF MEDICAL OFFICER | Sale | 21,034 | $1.7M | Sep 30 | — | SEC ↗ | |
| CHIEF MEDICAL OFFICER | Sale | 73 | $6K | Sep 29 | — | SEC ↗ | |
Heery ChristopherFirst filing | CHIEF MEDICAL OFFICER | Sale | 12,396 | $993K | Sep 26 | — | SEC ↗ |
Earnings: last 7 quarters
Frequently asked questions
How many SEC Form 4 insider filings does ACLX have?
Arcellx, Inc. (ACLX) has 22 SEC Form 4 filings (45 transaction rows) in the rolling 365-day window, disclosed by 4 distinct insiders. Most recent filing: Apr 17, 2026.
When was the most recent SEC Form 4 filing for ACLX?
The most recent Form 4 filing for ACLX on Tracefour is dated Apr 17, 2026.
Who is the most active insider at ACLX?
The most active SEC Form 4 filer at ACLX in the rolling window is CHIEF MEDICAL OFFICER Heery Christopher, with 7 filings.
What is the net insider flow at ACLX over the last 6 months?
Over the trailing 180 days, insiders at ACLX have net sold $14.6M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at ACLX in the current window?
Inside the rolling window, insiders at ACLX bought $0 and sold $18.4M based on SEC Form 4 filings.
Can I get alerts for ACLX insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Arcellx, Inc. (ACLX). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.