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Amprius Technologies Warrants
AMPX.WS

13 hedge funds and large institutions have $71M invested in Amprius Technologies Warrants in 2026 Q1 according to their latest regulatory filings, with 3 funds opening new positions, 5 increasing their positions, 3 reducing their positions, and 4 closing their positions.

New
Increased
Maintained
Reduced
Closed

175% more capital invested

Capital invested by funds: $25.8M → $71M (+$45.2M)

67% more repeat investments, than reductions

Existing positions increased: 5 | Existing positions reduced: 3

7% less funds holding

Funds holding: 14 → 13 (-1)

25% less first-time investments, than exits

New positions opened: 3 | Existing positions closed: 4

Holders
13
Holders Change
-1
Holders Change %
-7.14%
% of All Funds
0.16%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
3
Increased
5
Reduced
3
Closed
4
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
CL
CSS LLC
Illinois
+$3.95M
2
CM
Caption Management
Oklahoma
+$2.1M
3
DS
DRW Securities
Illinois
+$1.75M
4
AC
Aristeia Capital
Connecticut
+$1.64M
5
LP
LMR Partners
United Kingdom
+$790K

Top Sellers

1
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$1.24M
2
FBCM
Fort Baker Capital Management
California
-$1.06M
3
Toronto Dominion Bank
Toronto Dominion Bank
Ontario, Canada
-$969K
4
Janney Montgomery Scott
Janney Montgomery Scott
Pennsylvania
-$421K
5
Stifel Financial
Stifel Financial
Missouri
-$55.3K
Name Holding Trade Value Shares
Change 		Change in
Stake
LP
1
LMR Partners
United Kingdom
$30.8M +$790K +151,069 +3%
AC
2
Aristeia Capital
Connecticut
$8.35M +$1.64M +313,009 +35%
BFM
3
Boothbay Fund Management
New York
$7.92M – – –
CM
4
Caption Management
Oklahoma
$7.45M +$2.1M +401,557 +59%
CL
5
CSS LLC
Illinois
$5.19M +$3.95M +754,893 New
Hudson Bay Capital Management
6
Hudson Bay Capital Management
Connecticut
$5.1M +$342K +65,406 +10%
DS
7
DRW Securities
Illinois
$2.3M +$1.75M +335,173 New
WAM
8
Wolverine Asset Management
Illinois
$1.46M -$16.7K -3,187 -1%
Janney Montgomery Scott
9
Janney Montgomery Scott
Pennsylvania
$1.09M -$421K -80,598 -34%
ZA
10
Zazove Associates
Nevada
$690K +$403K +77,096 +125%
WAM
11
Warberg Asset Management
Illinois
$434K +$330K +63,200 New
D.E. Shaw & Co
12
D.E. Shaw & Co
New York
$203K -$1.24M -237,500 -89%
FFA
13
Farther Finance Advisors
California
$12 – – –
FBCM
14
Fort Baker Capital Management
California
– -$1.06M -414,139 Closed
Toronto Dominion Bank
15
Toronto Dominion Bank
Ontario, Canada
– -$969K -377,208 Closed
Stifel Financial
16
Stifel Financial
Missouri
– -$55.3K -21,500 Closed
Cetera Investment Advisers
17
Cetera Investment Advisers
Illinois
– -$25.7K -10,000 Closed

AMPX.WS Hedge Fund Activity: Q1 2026 in Review

13 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Amprius Technologies Warrants (AMPX.WS) for Q1 2026, worth a combined $71M — up 175% from $25.8M a quarter earlier.

Sellers outnumbered buyers: 4 funds closed out of AMPX.WS and 3 opened new positions — a net loss of 1 holder — while 3 trimmed existing stakes and 5 added.

The largest buyer was CSS LLC, opening a new position worth an estimated $3.95M. The largest seller was D.E. Shaw & Co, cutting an estimated $1.24M.

  • 13 institutional investors held Amprius Technologies Warrants (AMPX.WS) as of Q1 2026, down from 14 in Q4 2025.
  • Funds reported $71M of Amprius Technologies Warrants stock for Q1 2026, up 175% quarter-over-quarter.
  • 3 funds opened new Amprius Technologies Warrants positions in Q1 2026 and 4 closed out, a net change of -1 holder.
  • The largest Amprius Technologies Warrants buyer in Q1 2026 was CSS LLC, an estimated $3.95M added.
  • The largest Amprius Technologies Warrants seller in Q1 2026 was D.E. Shaw & Co, an estimated $1.24M sold.

Based on aggregated 13F filings for Q1 2026.