Amprius Technologies, Inc.
AMPXFigures shown here come from public SEC filings. Dates beside each section show the available history.
How Amprius Technologies, Inc. Makes Money
Follow each dollar of revenue through to what shareholders keep.
From revenue to net income
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Financial Summary
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SEC filings supply these figures; updates after the dates shown are not included. This page includes 5 annual periods. The latest annual period ends Dec 31, 2025. The latest insider filing shown is dated Jun 16, 2026. The latest institutional report shown is dated Mar 31, 2026; other ownership filings may exist.
Ownership
Who holds the shares, as reported in SEC ownership filings.
Reported 13F positions
Each row shows what a filer reported for one date, not a current position. The link opens that filing.
| Filer | Report date | Shares | Value | Filing |
|---|---|---|---|---|
| MITCHELL & PAHL PRIVATE WEALTH, LLC | 2026-03-31 | 10,000 | $169K | SEC filing |
| Harbour Capital Advisors, LLC | 2026-03-31 | 31,480 | Not shown | SEC filing |
| Science & Technology Partners, L.P. | 2026-03-31 | 635,106 | $10.7M | SEC filing |
| Swiss National Bank | 2026-03-31 | 232,400 | $3.92M | SEC filing |
| TWO SIGMA INVESTMENTS, LP | 2026-03-31 | 3,506,075 | $59.1M | SEC filing |
| EASTERN BANK | 2026-03-31 | 2,000 | $33.7K | SEC filing |
| Parallax Volatility Advisers, L.P. | 2026-03-31 | 40,777 | Not shown | SEC filing |
| Y-Intercept (Hong Kong) Ltd | 2026-03-31 | 164,224 | $2.77M | SEC filing |
| HOLLENCREST CAPITAL MANAGEMENT | 2026-03-31 | 40 | $674 | SEC filing |
| Western Wealth Management, LLC | 2026-03-31 | 4 | $67 | SEC filing |
| Schonfeld Strategic Advisors LLC | 2026-03-31 | 135,774 | $2.29M | SEC filing |
| Cornerstone Financial Management LLC | 2026-03-31 | 205 | $3.46K | SEC filing |
| Sender Co & Partners, Inc. | 2026-03-31 | 179,243 | $3.02M | SEC filing |
| ALGERT GLOBAL LLC | 2026-03-31 | 215,315 | Not shown | SEC filing |
| AQR CAPITAL MANAGEMENT LLC | 2026-03-31 | 137,726 | $2.32M | SEC filing |
| US BANCORP \DE\ | 2026-03-31 | 489 | $8.25K | SEC filing |
| JANUS HENDERSON GROUP PLC | 2026-03-31 | 52,803 | $889K | SEC filing |
| DNB Asset Management AS | 2026-03-31 | 153,032 | $2.58M | SEC filing |
| Joel Isaacson & Co., LLC | 2026-03-31 | 10,000 | $169K | SEC filing |
| RENAISSANCE TECHNOLOGIES LLC | 2026-03-31 | 359,525 | $6.06M | SEC filing |
- Each value is checked against Amprius Technologies, Inc.'s share prices from within about three months of its report date (insiders' Form 4 trades and the latest close).
- Value not shown for 1 row: the filed value is about 1,000 times too small for the share count at Amprius Technologies, Inc.'s share price.
- Value not shown for 2 rows: the value per share could not be confirmed against the share prices on file from within three months of the report date.
120 filers have only one report here.
Unusually large insider trades
Each trade is compared with the other insider trades of the same kind in the same security among Amprius Technologies, Inc.'s recent filings on file. Size alone is context, not a prediction or evidence of improper trading.
- 2026-04-01 · Sun Kang: Larger than all 111 other insider sales of Common stock on file. SEC filing
- 2026-04-01 · Sun Kang: Larger than 105 of the 111 other insider sales of Common stock on file. SEC filing
- 2026-03-12 · HSIEH Wen Hsuan: Larger than 106 of the 111 other insider sales of Common stock on file. SEC filing
- 2026-01-22 · Stefan Constantin Ionel: Larger than 107 of the 111 other insider sales of Common stock on file. SEC filing
- 2026-01-16 · Sun Kang: Larger than 109 of the 111 other insider sales of Common stock on file. SEC filing
- 2026-01-12 · Sun Kang: Larger than 108 of the 111 other insider sales of Common stock on file. SEC filing
- 2025-12-11 · Stefan Constantin Ionel: Larger than 103 of the 111 other insider sales of Common stock on file. SEC filing
- 2025-11-17 · Sun Kang: Larger than 110 of the 111 other insider sales of Common stock on file. SEC filing
- 2024-09-04 · MIRRO JUSTIN E: Larger than 100 of the 111 other insider sales of Common stock on file. SEC filing
- 2024-06-14 · MIRRO JUSTIN E: Larger than 101 of the 111 other insider sales of Common stock on file. SEC filing
- 2024-06-13 · MIRRO JUSTIN E: Larger than 101 of the 111 other insider sales of Common stock on file. SEC filing
- 2024-06-12 · MIRRO JUSTIN E: Larger than 104 of the 111 other insider sales of Common stock on file. SEC filing
Purchases & sales (open market or private)
| Security | Code | Price | Filing | |||
|---|---|---|---|---|---|---|
| 2026-06-15 | DIXON DONALD R · Director | Common stock | S — Open market or private sale | −85,000 | 17.17 | SEC filing |
| 2026-06-09 | DIXON DONALD R · Director | Common stock | S — Open market or private sale | −40,000 | 19.13 | SEC filing |
| 2026-06-04 | Stepien Thomas M · Chief Executive Officer | Common stock | S — Open market or private sale | −2,000 | 20.97 | SEC filing |
| 2026-05-27 | Stefan Constantin Ionel · Chief Technology Officer | Common stock | S — Open market or private sale | −3,208 | 17.19 | SEC filing |
| 2026-05-27 | Stepien Thomas M · Chief Executive Officer | Common stock | S — Open market or private sale | −4,375 | 17.19 | SEC filing |
| 2026-05-27 | Sun Kang · Director | Common stock | S — Open market or private sale | −356 | 17.19 | SEC filing |
| 2026-05-26 | DIXON DONALD R · Director | Common stock | S — Open market or private sale | −17,895 | 17.90 | SEC filing |
| 2026-05-21 | Stefan Constantin Ionel · Chief Technology Officer | Common stock | S — Open market or private sale | −28,812 | 14.79 | SEC filing |
Showing 8 of 10 rows
Grants, exercises, tax & gifts
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2026-06-12 | DIXON DONALD R · Director | Common stock | A — Grant, award, or other acquisition | +10,423 | SEC filing |
| 2026-06-12 | Chu Steven · Director | Common stock | A — Grant, award, or other acquisition | +10,423 | SEC filing |
| 2026-06-12 | SATTERTHWAITE LIVINGSTON · Director | Common stock | A — Grant, award, or other acquisition | +10,423 | SEC filing |
| 2026-06-12 | BAYLESS KATHLEEN A · Director | Common stock | A — Grant, award, or other acquisition | +10,423 | SEC filing |
| 2026-06-04 | Stepien Thomas M · Chief Executive Officer | Common stock | G — Bona fide gift | −30,384 | SEC filing |
| 2026-06-04 | Stepien Thomas M · Chief Executive Officer | Common stock | G — Bona fide gift | −36,914 | SEC filing |
| 2026-06-04 | Stepien Thomas M · Chief Executive Officer | Common stock | G — Bona fide gift | +36,914 | SEC filing |
| 2026-05-05 | Sun Kang · Director | Common stock | A — Grant, award, or other acquisition | +6,250 | SEC filing |
Showing 8 of 23 rows
Other activity
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2024-10-23 | Amprius, Inc. · 10% owner | Common stock | J — Other acquisition or disposition | −57,195,926 | SEC filing |
| 2024-10-23 | Amprius, Inc. · 10% owner | Common stock | J — Other acquisition or disposition | −5,500,000 | SEC filing |
| 2024-07-23 | MIRRO JUSTIN E · Director | Warrants (right to buy) | D — Disposition to the issuer | −4,700,000 | SEC filing |
Showing 3 of 3 rows
These tables describe filed transactions, not current holdings. Prices are shown as filed; a currency is added only when the filing's data names one. Amended and possible duplicate rows are left out of size comparisons and transaction groups.