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AMPX AMPRIUS TECHNOLOGIES INC

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Stock (common), issuer CIK 1899287

201 managers (206 13F filers) reported a position in AMPX shares at 2025-12-31, 67,747,663 shares in all. 44 filers opened a position and 28 filers sold out during the quarter.

Managers
201
13F filers
206
New
44
Added
86
Reduced
53
Sold out
28
Shares held by filers
67,747,663

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.1$8<0.01%new13F-HRTimelineGroup