Arcellx, Inc.
ACLXDelisted Apr 28, 2026- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001786205
Arcellx, Inc. was delisted on Apr 28, 2026; its insiders filed their last Form 4 on Apr 28, 2026; 240 institutions reported holding it in 13F filings for Q1 2026, worth $6.52B in total; Soros Fund Management was the only superinvestor holding it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Arcellx, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Arcellx, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Galligan Andrew H | Director | 0Indirect | Apr 28, 2026 | 1 |
| Lubner David Charles | Director | 0 | Apr 28, 2026 | 2 |
| Carroll Jill | Director | 0Indirect | Apr 28, 2026 | 1 |
| Elghandour Rami | SEE REMARKS | 0Indirect | Apr 28, 2026 | 6 |
| Behbahani Ali | Director | 0Indirect | Apr 28, 2026 | 1 |
| Ware Olivia C | Director | 0 | Apr 28, 2026 | 1 |
| Patel Kavita | Director | 0 | Apr 28, 2026 | 1 |
| Heery Christopher | CHIEF MEDICAL OFFICER | 0 | Apr 28, 2026 | 7 |
| Gilson Michelle | CHIEF FINANCIAL OFFICER | 0Indirect | Apr 28, 2026 | 9 |
| Myers Kristin | Director | – | Apr 28, 2026 | 1 |
| Yoon Derek | Director | – | Jun 6, 2024 | 0 |
| George Simeon | 10% Owner | 1,658,780Indirect | May 15, 2023 | 0 |
| SR One Capital Fund I Aggregator LP | 10% Owner | 1,658,780Indirect | May 15, 2023 | 0 |
| Sr One Capital Management, LLC | 10% Owner | 1,658,780Indirect | May 15, 2023 | 0 |
| Sr One Capital Partners I, LP | 10% Owner | 1,658,780Indirect | May 15, 2023 | 0 |
| SR One Co-Invest II, LLC | 10% Owner | 1,658,780Indirect | May 15, 2023 | 0 |
| SR One Co-Invest II Manager, LLC | 10% Owner | 1,658,780Indirect | May 15, 2023 | 0 |
| Sandell Scott D | 10% Owner | 0Indirect | Dec 27, 2022 | 0 |
| NEA Partners 15, L.P. | 10% Owner | 0 | Dec 22, 2022 | 0 |
| Nea 15 GP, LLC | 10% Owner | 0 | Dec 22, 2022 | 0 |
| Baskett Forest | 10% Owner | 0Indirect | Dec 22, 2022 | 0 |
| Sonsini Peter W. | 10% Owner | 12Indirect | Dec 22, 2022 | 0 |
| Florence Anthony A. Jr. | 10% Owner | 0Indirect | Dec 22, 2022 | 0 |
| New Enterprise Associates 15, L.P. | 10% Owner | 4,745,262 | Dec 22, 2022 | 0 |
| Makhzoumi Mohamad | 10% Owner | 0Indirect | Dec 22, 2022 | 0 |
| Novo Holdings A/S | 10% Owner | 4,016,878 | Feb 9, 2022 | 0 |
| Williams Lewis T | Director | 2,095,114Indirect | Feb 9, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Feb 9, 2022 (view filing) | Feb 8 | 1 day | Novo Holdings A/S10% Owner | PPurchase | +833.3K | $15.00 | +$12.5M | +26.2%4.02M after |