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Stem
STEM

86 hedge funds and large institutions have $27.9M invested in Stem in 2025 Q4 according to their latest regulatory filings, with 20 funds opening new positions, 18 increasing their positions, 25 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed

17% more call options, than puts

Call options by funds: $7.38M | Put options by funds: $6.31M

11% more first-time investments, than exits

New positions opened: 20 | Existing positions closed: 18

1% more funds holding

Funds holding: 85 → 86 (+1)

0% more funds holding in top 10

Funds holding in top 10: 1 → 1 (0)

1.32% less ownership

Funds ownership: 23.41% → 22.09% (-1.3%)

19% less capital invested

Capital invested by funds: $34.4M → $27.9M (-$6.49M)

28% less repeat investments, than reductions

Existing positions increased: 18 | Existing positions reduced: 25

Holders
86
Holders Change
+1
Holders Change %
+1.18%
% of All Funds
1.05%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
20
Increased
18
Reduced
25
Closed
18
Calls
$7.38M
Puts
$6.31M
Net Calls
+$1.07M
Net Calls Change
-$9.03M

Top Buyers

1
GCP
GSA Capital Partners
United Kingdom
+$1.29M
2
BCM
Bridgeway Capital Management
Texas
+$1.03M
3
JF
Jump Financial
Illinois
+$680K
4
DnB Asset Management
DnB Asset Management
Norway
+$622K
5
TI
Trexquant Investment
Connecticut
+$490K

Top Sellers

1
Bank of America
Bank of America
North Carolina
-$3.94M
2
Marshall Wace
Marshall Wace
United Kingdom
-$1.47M
3
Citadel Advisors
Citadel Advisors
Florida
-$850K
4
Point72 Asset Management
Point72 Asset Management
Connecticut
-$791K
5
UBS Group
UBS Group
Switzerland
-$529K
Name Holding Trade Value Shares
Change 		Change in
Stake
Northern Trust
26
Northern Trust
Illinois
$283K -$21.4K -1,115 -6%
MP
27
Mangrove Partners
Connecticut
$272K +$346K +18,061 New
Qube Research & Technologies (QRT)
28
Qube Research & Technologies (QRT)
United Kingdom
$272K +$346K +18,040 New
HighTower Advisors
29
HighTower Advisors
Illinois
$245K +$1.21K +63 +0.4%
Canada Pension Plan Investment Board
30
Canada Pension Plan Investment Board
Ontario, Canada
$242K +$308K +16,100 New
XT
31
XTX Topco
Cayman Islands
$219K -$156K -8,139 -36%
OAC
32
OMERS Administration Corp
Ontario, Canada
$190K +$241K +12,600 New
Bank of America
33
Bank of America
North Carolina
$187K -$3.94M -205,454 -94%
Nomura Holdings
34
Nomura Holdings
Japan
$186K -$55.8K -2,914 -19%
Balyasny Asset Management
35
Balyasny Asset Management
Illinois
$177K +$226K +11,778 New
Wells Fargo
36
Wells Fargo
California
$175K +$105K +5,492 +89%
Renaissance Technologies
37
Renaissance Technologies
New York
$169K +$215K +11,200 New
Point72 Asset Management
38
Point72 Asset Management
Connecticut
$167K -$791K -41,291 -79%
T. Rowe Price Associates
39
T. Rowe Price Associates
Maryland
$159K -$35K -1,825 -15%
ZDA
40
Zweig-DiMenna Associates
New York
$125K +$159K +8,302 New
Walleye Trading
41
Walleye Trading
New York
$75.4K +$96K +5,011 New
JP Morgan Chase
42
JP Morgan Chase
New York
$74K +$88.2K +4,602 +1,475%
Deutsche Bank
43
Deutsche Bank
Germany
$60.9K -$46.2K -2,410 -37%
Acadian Asset Management
44
Acadian Asset Management
Massachusetts
$54K +$69.1K +3,608 New
Group One Trading
45
Group One Trading
Illinois
$42.9K -$47.1K -2,460 -46%
Fidelity Investments
46
Fidelity Investments
Massachusetts
$33.5K +$24.6K +1,286 +136%
IAIM
47
International Assets Investment Management
Florida
$28.6K +$36.4K +1,900 New
National Bank of Canada
48
National Bank of Canada
Quebec, Canada
$26.2K -$6.04K -315 -15%
IA
49
IFP Advisors
Florida
$22.2K -$19 -1 -0.1%
TRCT
50
Tower Research Capital (TRC)
New York
$20.1K +$21.7K +1,133 +567%
1
2
3 4 5

STEM Hedge Fund Activity: Q4 2025 in Review

86 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in Stem (STEM) for Q4 2025, worth a combined $27.9M — down 19% from $34.4M a quarter earlier.

Buyers outnumbered sellers: 20 funds opened new STEM positions and 18 closed out — a net gain of 2 holders — while 18 added to existing stakes and 25 trimmed.

The largest buyer was GSA Capital Partners, adding an estimated $1.29M. The largest seller was Bank of America, cutting an estimated $3.94M.

  • 86 institutional investors held Stem (STEM) as of Q4 2025, up from 85 in Q3 2025.
  • Funds reported $27.9M of Stem stock for Q4 2025, down 19% quarter-over-quarter.
  • 20 funds opened new Stem positions in Q4 2025 and 18 closed out, a net change of +2 holders.
  • The largest Stem buyer in Q4 2025 was GSA Capital Partners, an estimated $1.29M added.
  • The largest Stem seller in Q4 2025 was Bank of America, an estimated $3.94M sold.

Based on aggregated 13F filings for Q4 2025.