List of insiders holdings for Arcellx, Inc.:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | NEA Partners 15 L.P. NEA 15 GP LLC 10% Owner | 2022-12-22 18:20:19 | 60,000 6,745,262 | 6,805,262 | Form 4 |
| 2 | SANDELL SCOTT D 10% Owner | 2022-12-27 18:48:30 | 0 4,746,494 | 4,746,494 | Form 4 |
| 3 | SR ONE CAPITAL MANAGEMENT LLC SR One Capital Fund I Aggregator LP SR ONE CAPITAL PARTNERS I LP George Simeon SR One Co-Invest II LLC SR One Co-Invest II Manager LLC 10% Owner | 2024-03-25 18:41:27 | 2,346,630 0 | 2,346,630 | Form 13D |
| 4 | Williams Lewis T Director | 2022-02-09 17:54:16 | 0 2,095,114 | 2,095,114 | Form 4 |
| 5 | BASKETT FOREST 10% Owner | 2022-12-22 18:25:47 | 0 2,061,628 | 2,061,628 | Form 4 |
| 6 | Sonsini Peter W. 10% Owner | 2022-12-22 18:53:03 | 0 2,060,833 | 2,060,833 | Form 4 |
| 7 | Makhzoumi Mohamad 10% Owner | 2022-12-22 18:47:10 | 566 2,060,179 | 2,060,745 | Form 4 |
| 8 | Florence Anthony A. Jr. 10% Owner | 2022-12-22 18:37:32 | 0 2,060,179 | 2,060,179 | Form 4 |
| 9 | Novo Holdings A/S 10% Owner | 2022-12-12 16:26:59 | 1,750,000 0 | 1,750,000 | Form 13G |
| 10 | Elghandour Rami SEE REMARKS | 2026-04-28 16:23:52 | 571,021 0 | 571,021 | Form 4 |
| 11 | Gilson Michelle CHIEF FINANCIAL OFFICER | 2026-04-28 16:25:47 | 59,028 0 | 59,028 | Form 4 |
| 12 | Heery Christopher CHIEF MEDICAL OFFICER | 2026-04-28 16:24:51 | 45,138 0 | 45,138 | Form 4 |
| 13 | Yoon Derek Director | 2024-06-06 16:20:19 | 8,011 0 | 8,011 | Form 4 |
| 14 | GILEAD SCIENCES INC. 10% Owner | 2026-04-28 09:13:16 | 100 0 | 100 | Form 13D |
| 15 | THIBAULT LANCE E See Remarks | 2022-02-03 17:22:40 | 0 0 | 0 | Form 3 |
| 16 | New Enterprise Associates 15 L.P. 10% Owner | 2026-04-30 17:38:06 | 0 0 | 0 | Form 13D |
| 17 | Galligan Andrew H Director | 2026-04-28 16:26:51 | 0 0 | 0 | Form 4 |
| 18 | Lubner David Charles Director | 2026-04-28 16:28:18 | 0 0 | 0 | Form 4 |
| 19 | Myers Kristin Director | 2026-04-28 16:29:25 | 0 0 | 0 | Form 4 |
| 20 | Patel Kavita Director | 2026-04-28 16:30:15 | 0 0 | 0 | Form 4 |
| 21 | Ware Olivia C Director | 2026-04-28 16:31:18 | 0 0 | 0 | Form 4 |
| 22 | Behbahani Ali Director | 2026-04-28 16:34:28 | 0 0 | 0 | Form 4 |
| 23 | Carroll Jill Director | 2026-04-28 18:22:20 | 0 0 | 0 | Form 4 |