Amprius Technologies
AMPX
262 hedge funds and large institutions have $1.35B invested in Amprius Technologies in 2026 Q2 according to their latest regulatory filings, with 64 funds opening new positions, 111 increasing their positions, 64 reducing their positions, and 45 closing their positions.
73% more repeat investments, than reductions
Existing positions increased: 111 | Existing positions reduced: 64
42% more first-time investments, than exits
New positions opened: 64 | Existing positions closed: 45
7% more funds holding
Funds holding: 245 → 262 (+17)
6.88% more ownership
Funds ownership: 61.76% → 68.65% (+6.9%)
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
3% less call options, than puts
Call options by funds: $212M | Put options by funds: $219M
5% less capital invested
Capital invested by funds: $1.42B → $1.35B (-$69.4M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
JAM
Jupiter Asset Management
London,
United Kingdom
|
+$38.2M |
| 2 |
BlackRock
New York
|
+$37.8M |
| 3 |
Morgan Stanley
New York
|
+$34.8M |
| 4 |
UBS Group
Zurich,
Switzerland
|
+$31.5M |
| 5 |
LP
LMR Partners
London,
United Kingdom
|
+$31.4M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
DCM
Driehaus Capital Management
Chicago,
Illinois
|
-$43.9M |
| 2 |
Massachusetts Financial Services
Boston,
Massachusetts
|
-$27.2M |
| 3 |
William Blair Investment Management
Chicago,
Illinois
|
-$19.7M |
| 4 |
Marshall Wace
London,
United Kingdom
|
-$19.6M |
| 5 |
JP Morgan Chase
New York
|
-$19.6M |
AMPX Hedge Fund Activity: Q2 2026 in Review
262 of the 8,305 institutional investors tracked by Wall St. Rank reported a position in Amprius Technologies (AMPX) for Q2 2026, worth a combined $1.35B — down 4.9% from $1.42B a quarter earlier.
Buyers outnumbered sellers: 64 funds opened new AMPX positions and 45 closed out — a net gain of 19 holders — while 111 added to existing stakes and 64 trimmed.
The largest buyer was Jupiter Asset Management, opening a new position worth an estimated $38.2M. The largest seller was Driehaus Capital Management, cutting an estimated $43.9M.
- 262 institutional investors held Amprius Technologies (AMPX) as of Q2 2026, up from 245 in Q1 2026.
- Funds reported $1.35B of Amprius Technologies stock for Q2 2026, down 4.9% quarter-over-quarter.
- 64 funds opened new Amprius Technologies positions in Q2 2026 and 45 closed out, a net change of +19 holders.
- The largest Amprius Technologies buyer in Q2 2026 was Jupiter Asset Management, an estimated $38.2M added.
- The largest Amprius Technologies seller in Q2 2026 was Driehaus Capital Management, an estimated $43.9M sold.
Based on aggregated 13F filings for Q2 2026.