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Stem
STEM

81 hedge funds and large institutions have $10.1M invested in Stem in 2025 Q2 according to their latest regulatory filings, with 16 funds opening new positions, 14 increasing their positions, 42 reducing their positions, and 88 closing their positions.

New
Increased
Maintained
Reduced
Closed

100% more call options, than puts

Call options by funds: $6.11M | Put options by funds: $3.06M

0.76% less ownership

Funds ownership: 1.41% → 0.65% (-0.76%)

38% less capital invested

Capital invested by funds: $16.2M → $10.1M (-$6.12M)

47% less funds holding

Funds holding: 154 → 81 (-73)

67% less repeat investments, than reductions

Existing positions increased: 14 | Existing positions reduced: 42

82% less first-time investments, than exits

New positions opened: 16 | Existing positions closed: 88

Holders
81
Holders Change
-73
Holders Change %
-47.4%
% of All Funds
1.07%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
16
Increased
14
Reduced
42
Closed
88
Calls
$6.11M
Puts
$3.06M
Net Calls
+$3.06M
Net Calls Change
+$2.82M

Top Buyers

Rank Fund Capital Flow
1
Bank of America
Bank of America
North Carolina
+$905K
2
Millennium Management
Millennium Management
New York
+$701K
3
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$513K
4
Marshall Wace
Marshall Wace
United Kingdom
+$270K
5
Jane Street
Jane Street
New York
+$258K

Top Sellers

Rank Fund Capital Flow
1
BlackRock
BlackRock
New York
-$3.38M
2
State Street
State Street
Massachusetts
-$1.07M
3
Geode Capital Management
Geode Capital Management
Massachusetts
-$901K
4
Vanguard Group
Vanguard Group
Pennsylvania
-$395K
5
Northern Trust
Northern Trust
Illinois
-$380K
Name Holding Trade Value Shares
Change 		Change in
Stake
LPL Financial
126
LPL Financial
California
– -$9.53K -1,360 Closed
Commonwealth Equity Services
127
Commonwealth Equity Services
Massachusetts
– -$9K -1,218 Closed
Cambridge Investment Research Advisors
128
Cambridge Investment Research Advisors
Iowa
– -$8K -1,202 Closed
KFGK
129
Keystone Financial Group (Kentucky)
Kentucky
– -$7.92K -1,130 Closed
BBA
130
Baader Bank Aktiengesellschaft
Germany
– -$5.78K -1,044 Closed
Corient Private Wealth
131
Corient Private Wealth
Florida
– -$7.01K -1,000 Closed
TSS
132
Two Sigma Securities
New York
– -$6.71K -958 Closed
MFG
133
Merit Financial Group
Georgia
– -$6.65K -950 Closed
HSA
134
HBK Sorce Advisory
Pennsylvania
– -$5.93K -847 Closed
FCP
135
Fidelis Capital Partners
Florida
– -$6.24K -751 Closed
MIM
136
MTM Investment Management
South Carolina
– -$5.07K -750 Closed
Focus Partners Wealth
137
Focus Partners Wealth
Massachusetts
– -$5.22K -746 Closed
WANY
138
Wealthspire Advisors (New York)
New York
– -$5.04K -719 Closed
AIP
139
Ameritas Investment Partners
Nebraska
– -$4.96K -708 Closed
NFTC
140
North Forty Two & Co
Oregon
– -$4.61K -658 Closed
PCP
141
Proficio Capital Partners
Massachusetts
– -$4.61K -658 Closed
LCM
142
Lazari Capital Management
California
– -$4.41K -629 Closed
DCM
143
Deuterium Capital Management
Florida
– -$4.2K -600 Closed
William Blair & Company
144
William Blair & Company
Illinois
– -$4.16K -593 Closed
MWM
145
Maridea Wealth Management
New York
– -$3.92K -559 Closed
CA
146
Claro Advisors
Massachusetts
– -$3.9K -557 Closed
Prudential Financial
147
Prudential Financial
New Jersey
– -$3.89K -556 Closed
IWM
148
IHT Wealth Management
Illinois
– -$3.87K -553 Closed
Principal Financial Group
149
Principal Financial Group
Iowa
– -$3.86K -551 Closed
California State Teachers Retirement System (CalSTRS)
150
California State Teachers Retirement System (CalSTRS)
California
– -$3.85K -550 Closed
3 4 5
6
7

STEM Hedge Fund Activity: Q2 2025 in Review

81 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Stem (STEM) for Q2 2025, worth a combined $10.1M — down 38% from $16.2M a quarter earlier.

Sellers outnumbered buyers: 88 funds closed out of STEM and 16 opened new positions — a net loss of 72 holders — while 42 trimmed existing stakes and 14 added.

The largest buyer was Bank of America, adding an estimated $905K. The largest seller was BlackRock, cutting an estimated $3.38M.

  • 81 institutional investors held Stem (STEM) as of Q2 2025, down from 154 in Q1 2025.
  • Funds reported $10.1M of Stem stock for Q2 2025, down 38% quarter-over-quarter.
  • 16 funds opened new Stem positions in Q2 2025 and 88 closed out, a net change of -72 holders.
  • The largest Stem buyer in Q2 2025 was Bank of America, an estimated $905K added.
  • The largest Stem seller in Q2 2025 was BlackRock, an estimated $3.38M sold.

Based on aggregated 13F filings for Q2 2025.