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Who owns Amprius Technologies (AMPX) stock

247 funds reported Amprius Technologies (AMPX) shares in their latest 13F filings, worth $1.3B in all. The largest holder is BlackRock ($157M). Last quarter 158 funds added to their stakes and 99 cut them.

Largest holders of AMPX (13F)Largest holders of AMPX (13F)BlackRock$157MVanguard Capital Management LLC$77.1MMorgan Stanley$70.8MTwo Sigma Investments, LP$59.9MUBS Group AG$56.4MVanguard Group$56.2MGeode Capital Management, LLC$48.8MJane Street Group, LLC$47.1MState Street$44.9MGoldman Sachs Group$35.2M

Largest holders (13F)

FundSharesValueChangeQuarter
BlackRock11,335,092$157Mincrease2026-06-30
Vanguard Capital Management LLC5,562,985$77.1Mincrease2026-06-30
Morgan Stanley5,105,505$70.8Mincrease2026-06-30
Two Sigma Investments, LP4,318,630$59.9Mincrease2026-06-30
UBS Group AG4,072,269$56.4Mincrease2026-06-30
Vanguard Group7,128,657$56.2Mincrease2025-12-31
Geode Capital Management, LLC3,520,655$48.8Mincrease2026-06-30
Jane Street Group, LLC3,401,071$47.1Mdecrease2026-06-30
State Street3,240,285$44.9Mincrease2026-06-30
Goldman Sachs Group2,542,294$35.2Mincrease2026-06-30
Jupiter Asset Management2,133,397$29.6Mnew2026-06-30
Citadel Advisors LLC1,676,344$23.2Mincrease2026-06-30
Price T Rowe Associates1,635,883$22.7Mdecrease2026-06-30
Vanguard Portfolio Management LLC1,457,629$20.2Mincrease2026-06-30
Hood River Capital Management LLC1,412,516$19.6Mincrease2026-06-30

Amprius Technologies' latest quarter

Amprius Technologies, Q2 2026: revenue $34.0M (+126% year over year), operating margin -12.6%, net loss $3.2M, operating cash flow −$2.9M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most AMPX stock?

By the latest 13F filings: BlackRock ($157M); Vanguard Capital Management LLC ($77.1M); Morgan Stanley ($70.8M); Two Sigma Investments, LP ($59.9M); UBS Group AG ($56.4M).

What is the short interest in AMPX?

22,724,816 shares were sold short at the 2026-10-15 settlement, -0.4% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.