Real time Form 13D and 13G transaction reports:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares have beem 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>>
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2025-12-05 12:52 pm Purchase | 2025-11-30 | 13G | Arcellx, Inc. ACLX | T. Rowe Price Investment Management, Inc. | 9,604,634 16.600% | 3,328,727![]() (+53.04%) | Filing History |
| 2025-11-05 11:26 am Sale | 2025-09-30 | 13G | Arcellx, Inc. ACLX | FMR LLC | 5,761,317 10.400% | -542,362![]() (-8.60%) | Filing History |
| 2025-09-08 1:36 pm Purchase | 2025-08-31 | 13G | Arcellx, Inc. ACLX | T. Rowe Price Investment Management, Inc. | 6,275,907 11.300% | 6,275,907![]() (New Position) | Filing History |
| 2025-08-14 9:15 pm Sale | 2025-08-12 | 13D | Arcellx, Inc. ACLX | New Enterprise Associates 15 L.P. | 3,055,360 5.510% | -689,902![]() (-18.42%) | Filing History |
| 2025-08-14 4:20 pm Sale | 2025-06-30 | 13G | Arcellx, Inc. ACLX | Perceptive Advisors LLC | 2,478,000 4.500% | -448,478![]() (-15.32%) | Filing History |
| 2025-05-15 4:30 pm Sale | 2025-03-31 | 13G | Arcellx, Inc. ACLX | Perceptive Advisors LLC | 2,926,478 5.300% | -962,191![]() (-24.74%) | Filing History |
| 2025-05-12 4:15 pm Unchanged | 2025-05-08 | 13D | Arcellx, Inc. ACLX | New Enterprise Associates 15 L.P. | 3,745,262 6.800% | 0 (Unchanged) | Filing History |
| 2025-05-12 10:24 am Sale | 2025-03-31 | 13G | Arcellx, Inc. ACLX | FMR LLC | 6,303,679 11.500% | -1,652,954![]() (-20.77%) | Filing History |
| 2025-04-30 10:55 am Purchase | 2025-03-31 | 13G | Arcellx, Inc. ACLX | The Vanguard Group | 3,985,156 7.250% | 655,064![]() (+19.67%) | Filing History |
| 2025-04-17 09:35 am Sale | 2025-03-31 | 13G | Arcellx, Inc. ACLX | BlackRock Inc. BLK | 3,527,220 6.400% | -719,472![]() (-16.94%) | Filing History |
| 2025-02-27 4:23 pm Purchase | 2025-02-27 | 13D | Arcellx, Inc. ACLX | Elghandour Rami | 3,997,132 6.900% | 1,146,467![]() (+40.22%) | Filing History |
| 2025-02-12 09:16 am Purchase | 2024-12-31 | 13G | Arcellx, Inc. ACLX | FMR LLC | 7,956,633 14.700% | 1,477,360![]() (+22.80%) | Filing History |
| 2025-01-30 9:34 pm Purchase | 2024-12-31 | 13G | Arcellx, Inc. ACLX | The Vanguard Group | 3,330,092 6.150% | 3,330,092![]() (New Position) | Filing History |
| 2024-11-22 4:12 pm Purchase | 2024-11-15 | 13G | Arcellx, Inc. ACLX | RA Capital Management, L.P. | 2,787,327 5.200% | 2,787,327![]() (New Position) | Filing History |
| 2024-11-14 4:35 pm Purchase | 2024-09-30 | 13G | Arcellx, Inc. ACLX | Paradigm BioCapital Advisors LP | 4,800,000 8.900% | 1,141,376![]() (+31.20%) | Filing History |
| 2024-11-14 4:31 pm Sale | 2024-09-30 | 13G | Arcellx, Inc. ACLX | Perceptive Advisors LLC | 3,888,669 7.200% | -656,140![]() (-14.44%) | Filing History |
| 2024-11-12 09:50 am Purchase | 2024-11-08 | 13G | Arcellx, Inc. ACLX | FMR LLC | 6,479,273 12.053% | 1,084,778![]() (+20.11%) | Filing History |
| 2024-11-08 4:40 pm Purchase | 2024-11-03 | 13D | Arcellx, Inc. ACLX | Elghandour Rami | 2,850,665 5.000% | 2,850,665![]() (New Position) | Filing History |
| 2024-11-08 2:17 pm Unchanged | 2024-09-30 | 13G | Arcellx, Inc. ACLX | BlackRock Inc. BLK | 4,246,692 7.900% | 0 (Unchanged) | Filing History |
| 2024-10-22 3:24 pm Purchase | 2024-09-30 | 13G | Arcellx, Inc. ACLX | BlackRock Inc. BLK | 4,246,692 7.900% | 1,228,154![]() (+40.69%) | Filing History |

