Amprius Technologies Inc. (AMPX)
Industrials
Electrical Equipment & Parts
9.60 $
+1.4%
vs. previous close
Closing price · As of: 31. Jul 2026
Who owns Amprius Technologies Inc. (AMPX)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 93.1% of the shares are freely tradable; institutional investors hold 65.2%.
Ownership Structure
Institutional ownership
Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings.
65.2%
Insiders
Share of the stock held by the executives, founders and major shareholders of the company itself.
4.5%
Float
Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders.
93.1%
Short % of float
Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices.
16.4%
Shares Outstanding
Total number of shares issued. Price times share count gives market cap.
142Mio.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 6.51 | 9,225,611 | +4.6 | 03/31/2026 |
| Vanguard Group Inc | 5.03 | 7,128,657 | +9.5 | 12/31/2025 |
| Vanguard Capital Management, LLC | 3.47 | 4,908,875 | +0.0 | 03/31/2026 |
| Jane Street Group LLC | 2.94 | 4,160,656 | +1,849.5 | 03/31/2026 |
| Driehaus Capital Management LLC | 2.68 | 3,794,178 | +58.5 | 03/31/2026 |
| Two Sigma Investments LLC | 2.48 | 3,506,075 | +144.0 | 03/31/2026 |
| Morgan Stanley - Brokerage Accounts | 2.23 | 3,162,167 | +12.5 | 03/31/2026 |
| Geode Capital Management, LLC | 1.99 | 2,814,530 | +5.1 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Total Stock Mkt Idx Inv | 2.36 | 3,347,863 | +0.3 | 04/30/2026 |
| iShares Russell 2000 ETF | 1.95 | 2,762,330 | +0.9 | 05/29/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.