# AMPRIUS TECHNOLOGIES INC COMMON STOCK

AMPRIUS TECHNOLOGIES INC COMMON STOCK is a security (CUSIP 03214Q108) tracked across SEC portfolio filings. 249 institutional managers reported $1.5B on Form 13F as of 2026-06-30; 20 registered fund positions totaling $81.8M via N-PORT as of 2026-05-31.

## Summary

- Issuer: AMPRIUS TECHNOLOGIES INC
- Class: COMMON STOCK
- CUSIP: 03214Q108
- Asset category: EC
- 13F holders: 249
- 13F value: $1.5B
- 13F period: 2026-06-30
- N-PORT fund positions: 20
- N-PORT value: $81.8M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 249 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| BlackRock, Inc. | New York, NY | $155.5M | 9,225,611 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $111.3M | 89,170 |
| JANE STREET GROUP, LLC | NEW YORK, NY | $110.8M | 4,160,656 |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $71.1M | 1,438,660 |
| Driehaus Capital Management LLC | Chicago, IL | $64.0M | 3,794,178 |
| [TWO SIGMA INVESTMENTS, LP](https://search.stillhousedata.com/firm/137137) | New York, NY | $59.1M | 3,506,075 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $56.2M | 7,128,657 |
| MORGAN STANLEY | NEW YORK, NY | $53.3M | 3,162,167 |
| UBS Group AG | Zurich, V8 | $49.1M | 2,311,554 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $47.5M | 2,814,530 |
| STATE STREET CORP | BOSTON, MA | $45.7M | 2,712,630 |
| GOLDMAN SACHS GROUP INC | NEW YORK, NY | $37.5M | 2,226,181 |
| Baird Financial Group, Inc. | MILWAUKEE, WI | $26.7M | 1,585,098 |
| [Point72 Asset Management, L.P.](https://search.stillhousedata.com/firm/283077) | Stamford, CT | $24.9M | 27,921 |
| [MARSHALL WACE, LLP](https://search.stillhousedata.com/firm/160885) | LONDON, X0 | $20.7M | 1,227,599 |

## Top fund holders (N-PORT)

_Showing 15 of 20 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $24.6M | 3.02% |
| [T. Rowe Price New Horizons Fund, Inc.](https://search.stillhousedata.com/fund/S000002106) | T. ROWE PRICE NEW HORIZONS FUND, INC. | $18.7M | 14.68% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $12.0M | 6.84% |
| [Oberweis Micro-Cap Fund](https://search.stillhousedata.com/fund/S000010231) | OBERWEIS FUNDS | $9.5M | 90.14% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $3.1M | 6.41% |
| [VANGUARD EXPLORER FUND](https://search.stillhousedata.com/fund/S000002578) | VANGUARD EXPLORER FUND | $3.0M | 1.39% |
| [VANGUARD U.S. MOMENTUM FACTOR ETF](https://search.stillhousedata.com/fund/S000061302) | VANGUARD WELLINGTON FUND | $2.5M | 13.63% |
| [1290 Essex Small Cap Growth Fund](https://search.stillhousedata.com/fund/S000076802) | 1290 Funds | $2.0M | 174.47% |
| [Virtus Zevenbergen Innovative Growth Stock Fund](https://search.stillhousedata.com/fund/S000057040) | Virtus Asset Trust | $1.7M | 49.08% |
| [Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000048296) | Goldman Sachs ETF Trust | $1.1M | 10.87% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $1.0M | 0.17% |
| [Voya MI Dynamic Small Cap Fund](https://search.stillhousedata.com/fund/S000066937) | Voya Equity Trust | $885K | 47.51% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $876K | 0.29% |
| [Russell Investments U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000089990) | Russell Investments Exchange Traded Funds | $676K | 136.83% |
| [TIFF MULTI-ASSET FUND](https://search.stillhousedata.com/fund/S000006387) | TIFF Investment Program | $350K | 2.52% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/03214Q108.md)
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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.