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Stem
STEM

75 hedge funds and large institutions have $17.4M invested in Stem in 2026 Q1 according to their latest regulatory filings, with 12 funds opening new positions, 16 increasing their positions, 21 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed

56% more call options, than puts

Call options by funds: $1.68M | Put options by funds: $1.07M

0.97% more ownership

Funds ownership: 22.09% → 23.06% (+0.97%)

0% more funds holding in top 10

Funds holding in top 10: 1 → 1 (0)

13% less funds holding

Funds holding: 86 → 75 (-11)

24% less repeat investments, than reductions

Existing positions increased: 16 | Existing positions reduced: 21

37% less first-time investments, than exits

New positions opened: 12 | Existing positions closed: 19

38% less capital invested

Capital invested by funds: $27.9M → $17.4M (-$10.5M)

Holders
75
Holders Change
-11
Holders Change %
-12.79%
% of All Funds
0.92%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
12
Increased
16
Reduced
21
Closed
19
Calls
$1.68M
Puts
$1.07M
Net Calls
+$603K
Net Calls Change
-$469K

Top Buyers

1
Marshall Wace
Marshall Wace
United Kingdom
+$1.67M
2
Two Sigma Investments
Two Sigma Investments
New York
+$1.21M
3
TI
Trexquant Investment
Connecticut
+$888K
4
Renaissance Technologies
Renaissance Technologies
New York
+$636K
5
BNP Paribas Financial Markets
BNP Paribas Financial Markets
France
+$453K

Top Sellers

1
Susquehanna International Group
Susquehanna International Group
Pennsylvania
-$1.12M
2
Goldman Sachs
Goldman Sachs
New York
-$538K
3
JF
Jump Financial
Illinois
-$534K
4
Millennium Management
Millennium Management
New York
-$496K
5
DnB Asset Management
DnB Asset Management
Norway
-$489K
Name Holding Trade Value Shares
Change 		Change in
Stake
Federated Hermes
51
Federated Hermes
Pennsylvania
$866 – – –
Jones Financial Companies
52
Jones Financial Companies
Missouri
$840 – – –
TWM
53
TopTier Wealth Management
Wisconsin
$804 +$1.22K +91 New
Optiver Holding
54
Optiver Holding
Netherlands
$769 – – –
US Bancorp
55
US Bancorp
Minnesota
$583 -$13 -1 -1%
CFM
56
Cornerstone Financial Management
Massachusetts
$583 – – –
UBS AM
57
UBS AM
Illinois
$548 +$832 +62 New
HI
58
Harbour Investments
Wisconsin
$504 +$765 +57 New
AF
59
Allworth Financial
California
$460 +$134 +10 +24%
Nisa Investment Advisors
60
Nisa Investment Advisors
Missouri
$442 – – –
ASN
61
Advisory Services Network
Georgia
$380 +$577 +43 New
MCM
62
MAI Capital Management
Ohio
$328 – – –
WSFS
63
Wilmington Savings Fund Society
Delaware
$309 – – –
SIS
64
Strategic Investment Solutions
Illinois
$221 -$161 -12 -32%
CA
65
CoreCap Advisors
Michigan
$221 – – –
HPC
66
HM Payson & Co
Maine
$221 – – –
QC
67
Quent Capital
New York
$221 – – –
SWP
68
Strategic Wealth Partners
Ohio
$168 – – –
DWM
69
Dogwood Wealth Management
Kansas
$97 – – –
MG
70
Mather Group
Illinois
$88 +$134 +10 New
Northwestern Mutual Wealth Management
71
Northwestern Mutual Wealth Management
Wisconsin
$88 +$134 +10 New
OWP
72
ORG Wealth Partners
Texas
$61 – – –
SIS
73
Sound Income Strategies
Florida
$44 – – –
SWIM
74
Smallwood Wealth Investment Management
New Jersey
$17 – – –
Russell Investments Group
75
Russell Investments Group
United Kingdom
$9 -$67 -5 -83%
1 2
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STEM Hedge Fund Activity: Q1 2026 in Review

75 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Stem (STEM) for Q1 2026, worth a combined $17.4M — down 38% from $27.9M a quarter earlier.

Sellers outnumbered buyers: 19 funds closed out of STEM and 12 opened new positions — a net loss of 7 holders — while 21 trimmed existing stakes and 16 added.

The largest buyer was Marshall Wace, adding an estimated $1.67M. The largest seller was Susquehanna International Group, exiting entirely with an estimated $1.12M sold.

  • 75 institutional investors held Stem (STEM) as of Q1 2026, down from 86 in Q4 2025.
  • Funds reported $17.4M of Stem stock for Q1 2026, down 38% quarter-over-quarter.
  • 12 funds opened new Stem positions in Q1 2026 and 19 closed out, a net change of -7 holders.
  • The largest Stem buyer in Q1 2026 was Marshall Wace, an estimated $1.67M added.
  • The largest Stem seller in Q1 2026 was Susquehanna International Group, an estimated $1.12M sold.

Based on aggregated 13F filings for Q1 2026.