AMPRIUS TECHNOLOGIES INC (AMPX) Institutional Ownership and Insiders Activity

AMPRIUS TECHNOLOGIES INC (AMPX) is widely held by institutional investors, with 2 tracked firms reporting positions valued at approximately $13.18M based on SEC Form 13F filings for the quarter ended March 31, 2026.

Polen Capital Management is the largest disclosed holder, reporting approximately $7.12M in AMPX holdings in its latest filing.

Institutional ownership among tracked investors remains highly concentrated, with Polen Capital Management representing the majority of disclosed value.