Who owns Amprius Technologies, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of AMPX from SEC Form 13F filings across 261 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 261 institutions disclosed 97.2M shares of Amprius Technologies, Inc. worth $1.35B — about 67.8% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
261
13F holders
$1.35B
value, 2026 filers
67.8%
of shares outstanding (97.2M sh)
65
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of AMPX's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 11.3M | $157.1M | 0.0% | 7.9% | +22.9% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 5.6M | $77.1M | 0.0% | 3.9% | +13.3% |
| 3 | MORGAN STANLEY | 5.1M | $70.8M | 0.0% | 3.6% | +61.5% |
| 4 | TWO SIGMA INVESTMENTS, LP | 4.3M | $59.9M | 0.0% | 3% | +23.2% |
| 5 | UBS Group AG | 4.1M | $56.4M | 0.0% | 2.8% | +76.2% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 3.5M | $48.8M | 0.0% | 2.5% | +25.1% |
| 7 | JANE STREET GROUP, LLC | 3.4M | $47.1M | 0.0% | 2.4% | -18.3% |
| 8 | STATE STREET CORP | 3.2M | $44.9M | 0.0% | 2.3% | +19.5% |
| 9 | GOLDMAN SACHS GROUP INC | 2.5M | $35.2M | 0.0% | 1.8% | +14.2% |
| 10 | JUPITER ASSET MANAGEMENT LTDNEW | 2.1M | $29.6M | 0.1% | 1.5% | new |
| 11 | LMR Partners LLPNEW | 1.8M | $24.3M | 0.1% | 1.2% | new |
| 12 | CITADEL ADVISORS LLC | 1.7M | $23.2M | 0.0% | 1.2% | +16.5% |
| 13 | PRICE T ROWE ASSOCIATES INC /MD/ | 1.6M | $22.7M | 0.0% | 1.1% | -13.8% |
| 14 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.5M | $20.2M | 0.0% | 1% | +35.8% |
| 15 | Hood River Capital Management LLC | 1.4M | $19.6M | 0.1% | 1% | +48.8% |
| 16 | RENAISSANCE TECHNOLOGIES LLC | 1.4M | $19.5M | 0.0% | 1% | +291.9% |
| 17 | Driehaus Capital Management LLC | 1.3M | $18.6M | 0.1% | 0.9% | -64.5% |
| 18 | Baird Financial Group, Inc. | 1.3M | $18.4M | 0.0% | 0.9% | -16.4% |
| 19 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUNDNEW | 1.2M | $17.3M | 0.0% | 0.9% | new |
| 20 | NORTHERN TRUST CORP | 1.2M | $17.0M | 0.0% | 0.9% | +20.2% |
| 21 | MILLENNIUM MANAGEMENT LLC | 1.2M | $16.7M | 0.0% | 0.8% | +16.7% |
| 22 | DEUTSCHE BANK AG\ | 1.2M | $16.6M | 0.0% | 0.8% | +36.7% |
| 23 | BARCLAYS PLC | 1.2M | $16.4M | 0.0% | 0.8% | +11.9% |
| 24 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.2M | $16.3M | 0.0% | 0.8% | +13.2% |
| 25 | Point72 Asset Management, L.P. | 1.1M | $15.8M | 0.0% | 0.8% | +3982.3% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.