Amprius Technologies
AMPX
245 hedge funds and large institutions have $1.42B invested in Amprius Technologies in 2026 Q1 according to their latest regulatory filings, with 80 funds opening new positions, 93 increasing their positions, 57 reducing their positions, and 36 closing their positions.
166% more capital invested
Capital invested by funds: $534M → $1.42B (+$889M)
122% more first-time investments, than exits
New positions opened: 80 | Existing positions closed: 36
100% more funds holding in top 10
Funds holding in top 10: 1 → 2 (+1)
79% more call options, than puts
Call options by funds: $220M | Put options by funds: $123M
63% more repeat investments, than reductions
Existing positions increased: 93 | Existing positions reduced: 57
20% more funds holding
Funds holding: 205 → 245 (+40)
9.88% more ownership
Funds ownership: 51.89% → 61.76% (+9.9%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
+$51.5M |
| 2 |
Two Sigma Investments
New York
|
+$27M |
| 3 |
Massachusetts Financial Services
Boston,
Massachusetts
|
+$26.4M |
| 4 |
T. Rowe Price Associates
Baltimore,
Maryland
|
+$23.7M |
| 5 |
DCM
Driehaus Capital Management
Chicago,
Illinois
|
+$18.3M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$20.9M |
| 2 |
Deutsche Bank
Frankfurt Am Main Ge,
Germany
|
-$14.1M |
| 3 |
Voloridge Investment Management
Jupiter,
Florida
|
-$13.9M |
| 4 |
Invesco
Atlanta,
Georgia
|
-$10.6M |
| 5 |
Hudson Bay Capital Management
Stamford,
Connecticut
|
-$8.68M |
AMPX Hedge Fund Activity: Q1 2026 in Review
245 of the 8,187 institutional investors tracked by Wall St. Rank reported a position in Amprius Technologies (AMPX) for Q1 2026, worth a combined $1.42B — up 166% from $534M a quarter earlier.
Buyers outnumbered sellers: 80 funds opened new AMPX positions and 36 closed out — a net gain of 44 holders — while 93 added to existing stakes and 57 trimmed.
The largest buyer was Jane Street, adding an estimated $51.5M. The largest seller was Susquehanna International Group, cutting an estimated $20.9M.
- 245 institutional investors held Amprius Technologies (AMPX) as of Q1 2026, up from 205 in Q4 2025.
- Funds reported $1.42B of Amprius Technologies stock for Q1 2026, up 166% quarter-over-quarter.
- 80 funds opened new Amprius Technologies positions in Q1 2026 and 36 closed out, a net change of +44 holders.
- The largest Amprius Technologies buyer in Q1 2026 was Jane Street, an estimated $51.5M added.
- The largest Amprius Technologies seller in Q1 2026 was Susquehanna International Group, an estimated $20.9M sold.
Based on aggregated 13F filings for Q1 2026.