8 institutions reported holding $681,255 of AMPRIUS TECHNOLOGIES INC COMMON STOCK (AMPX) in SEC 13F filings for 2026-06-30. Largest institutional holders: FNY Investment Advisers, LLC ($544,000), Central Pacific Bank - Trust Division ($97,006), EASTERN BANK ($27,720), GAMMA Investing LLC ($12,086), MassMutual Private Wealth & Trust, FSB ($388). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | FNY Investment Advisers, LLC | $544,000 | 39,302 | Added |
| 2 | Central Pacific Bank - Trust Division | $97,006 | 6,999 | Trimmed |
| 3 | EASTERN BANK | $27,720 | 2,000 | Hold |
| 4 | GAMMA Investing LLC | $12,086 | 872 | Trimmed |
| 5 | MassMutual Private Wealth & Trust, FSB | $388 | 28 | Trimmed |
| 6 | Miller Global Investments, LLC | $55 | 4 | New |
| 7 | CoreCap Advisors, LLC | $0 | 0 | Exited |
| 8 | Versant Capital Management, Inc | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30