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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 35 closing their positions.

New
Increased
Maintained
Reduced
Closed

166% more capital invested

Capital invested by funds: $534M → $1.42B (+$889M)

129% more first-time investments, than exits

New positions opened: 80 | Existing positions closed: 35

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: 204 → 245 (+41)

9.89% more ownership

Funds ownership: 51.88% → 61.76% (+9.9%)

Holders
245
Holders Change
+41
Holders Change %
+20.1%
% of All Funds
3.02%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.02%
New
80
Increased
93
Reduced
57
Closed
35
Calls
$220M
Puts
$123M
Net Calls
+$97.2M
Net Calls Change
+$60.8M

Top Buyers

1
Jane Street
Jane Street
New York
+$51.5M
2
Two Sigma Investments
Two Sigma Investments
New York
+$27M
3
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
+$26.4M
4
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$23.7M
5
DCM
Driehaus Capital Management
Illinois
+$18.3M

Top Sellers

1
Susquehanna International Group
Susquehanna International Group
Pennsylvania
-$20.9M
2
Deutsche Bank
Deutsche Bank
Germany
-$14.1M
3
Voloridge Investment Management
Voloridge Investment Management
Florida
-$13.9M
4
Invesco
Invesco
Georgia
-$10.6M
5
Hudson Bay Capital Management
Hudson Bay Capital Management
Connecticut
-$8.68M
Name Holding Trade Value Shares
Change 		Change in
Stake
Walleye Capital
251
Walleye Capital
New York
– -$2.13M -269,406 Closed
MP
252
Mangrove Partners
Connecticut
– -$920K -116,624 Closed
Capital Fund Management (CFM)
253
Capital Fund Management (CFM)
France
– -$1.42M -109,020 Closed
FA
254
Faithward Advisors
Pennsylvania
– -$798K -101,175 Closed
N
255
Numerai
California
– -$759K -96,209 Closed
PAMP
256
Polar Asset Management Partners
Ontario, Canada
– -$620K -78,600 Closed
FRM
257
Fox Run Management
Connecticut
– -$590K -74,774 Closed
CM
258
CoreCommodity Management
Connecticut
– -$584K -74,022 Closed
DFCM
259
Dark Forest Capital Management
Puerto Rico
– -$567K -71,885 Closed
GIM
260
Granahan Investment Management
Massachusetts
– -$508K -64,382 Closed
Canada Pension Plan Investment Board
261
Canada Pension Plan Investment Board
Ontario, Canada
– -$435K -55,100 Closed
PA
262
PharVision Advisers
Florida
– -$339K -42,991 Closed
ECM
263
ExodusPoint Capital Management
New York
– -$210K -26,560 Closed
LOAMU
264
Lombard Odier Asset Management (USA)
New York
– -$189K -23,942 Closed
DS
265
DRW Securities
Illinois
– -$184K -23,321 Closed
AWP
266
Abacus Wealth Partners
California
– -$158K -20,000 Closed
DG
267
DMC Group
Alabama
– -$104K -13,204 Closed
Universal-Beteiligungs- und Servicegesellschaft
268
Universal-Beteiligungs- und Servicegesellschaft
Germany
– -$88.9K -11,269 Closed
BCI
269
Brinker Capital Investments
Pennsylvania
– -$86.2K -10,919 Closed
WVP
270
Worth Venture Partners
New Jersey
– -$85.8K -10,875 Closed
JF
271
Jump Financial
Illinois
– -$81.9K -10,381 Closed
SSG
272
Summit Securities Group
New York
– -$54K -6,850 Closed
AB
273
Amalgamated Bank
New York
– -$27K -3,468 Closed
FDCDDQ
274
Federation des caisses Desjardins du Quebec
Quebec, Canada
– -$2.37K -300 Closed
DAM
275
Delta Asset Management
Tennessee
– -$1.62K -205 Closed
8 9 10
11
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AMPX Hedge Fund Activity: Q1 2026 in Review

245 of the 8,125 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 35 closed out — a net gain of 45 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 204 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 35 closed out, a net change of +45 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.