Momentus INC Schedule 13G passive stakes

Several Davidson Kempner entities have updated their beneficial ownership filings for Momentus Inc., reporting a combined stake of 4.51% as of June 18, 2026.

Davidson Kempner Capital Management and affiliates have reported an 8.9% beneficial ownership stake in Momentus Inc. following a recent private placement.

Davidson Kempner Capital Management and its affiliates have reported a 0% beneficial ownership stake in Momentus Inc. as of May 8, 2026.

Citadel entities and Kenneth Griffin have filed a Schedule 13G reporting a combined 9.99% beneficial ownership stake in Momentus Inc. Class A common stock.

Armistice Capital, LLC and Steven Boyd have filed an amended Schedule 13G, reporting a 4.99% beneficial ownership in Momentus Inc.'s Class A common stock.

Armistice Capital, LLC and Steven Boyd have filed an amended Schedule 13G, revealing a shared beneficial ownership of 9.99% of Momentus Inc.'s Class A common stock as of March 31, 2025.

Armistice Capital, LLC and its managing member Steven Boyd have filed an amended Schedule 13G, reporting a beneficial ownership of 9.99% of Momentus Inc.'s Class A common stock as of December 31, 2024.