Arcellx, INC Schedule 13G passive stakes

Vestal Point Capital and Ryan Wilder have filed an amendment to their Schedule 13G, reporting a 0% beneficial ownership stake in Arcellx, Inc.

The Vanguard Group has reported a 0% beneficial ownership in Arcellx Inc. common stock following an internal organizational realignment.

T. Rowe Price Investment Management, Inc. has reported a reduction in its beneficial ownership of Arcellx Inc. common stock to 4.5%.

FMR LLC and Abigail P. Johnson have filed an Amendment No. 7 to Schedule 13G, reporting a 0.5% beneficial ownership in ARCELLX INC's common stock as of February 27, 2026.

FMR LLC and Abigail P. Johnson have filed an amendment to disclose a 6.2% beneficial ownership stake in ARCELLX INC as of December 31, 2025.

T. Rowe Price Investment Management, Inc. has increased its beneficial ownership in Arcellx Inc. to 16.6% of common stock.

FMR LLC and Abigail P. Johnson disclose a 10.4% beneficial ownership stake in ARCELLX INC, holding over 5.7 million shares of common stock.

T. Rowe Price Investment Management, Inc. has reported a significant 11.3% beneficial ownership stake in ARCELLX INC, holding over 6.2 million shares.

Perceptive Advisors and its affiliates have reduced their beneficial ownership in Arcellx, Inc. to 4.5% of common stock outstanding.

Perceptive Advisors LLC, along with Joseph Edelman and Perceptive Life Sciences Master Fund, Ltd., has disclosed a passive beneficial ownership of 5.3% in Arcellx, Inc.'s common stock.

FMR LLC and Abigail P. Johnson have jointly reported a beneficial ownership of 11.5% of ARCELLX INC's common stock as of March 31, 2025.

The Vanguard Group has filed an amended Schedule 13G, revealing a beneficial ownership of 7.25% of Arcellx Inc's common stock as of March 31, 2025.

BlackRock, Inc. has filed an amended Schedule 13G, reporting a beneficial ownership of 6.4% of Arcellx, Inc.'s common stock as of March 31, 2025.

FMR LLC and Abigail P. Johnson have filed an amended Schedule 13G, reporting a combined beneficial ownership of 14.7% of ARCELLX INC's common stock as of December 31, 2024.

The Vanguard Group has reported a 6.15% beneficial ownership stake in Arcellx Inc's common stock as of December 31, 2024, through a Schedule 13G filing with the SEC.