STEM Stem, Inc.

NYSE
$5.70

Stem, Inc. (STEM) Institutional Ownership

What the institutions did with STEM last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers reporting
84
filed a 13F this quarter
Managers holding
73
-1 on the quarter
Buyers
26
10 opened new
Sellers
30
11 sold out entirely
Buyer share
46.4%
of managers who traded it
Breadth
-7.1
net buyers, as a share of those trading

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Largest holders

Manager Shares % of reported
MARSHALL WACE, LLP 405.6K 18.4%
VANGUARD CAPITAL MANAGEMENT LLC 361.2K 16.4%
BlackRock, Inc. 164.5K 7.5%
Trexquant Investment LP 110.6K 5.0%
TWO SIGMA INVESTMENTS, LP 103.2K 4.7%
GSA CAPITAL PARTNERS LLP 102.3K 4.6%
BNP PARIBAS FINANCIAL MARKETS 93.1K 4.2%
GEODE CAPITAL MANAGEMENT, LLC 93.0K 4.2%
ACADIAN ASSET MANAGEMENT LLC 74.6K 3.4%
RENAISSANCE TECHNOLOGIES LLC 66.5K 3.0%
BRIDGEWAY CAPITAL MANAGEMENT, LLC 59.6K 2.7%
VANGUARD FIDUCIARY TRUST CO 56.9K 2.6%
Longaeva Partners L.P. 48.2K 2.2%
STATE STREET CORP 38.3K 1.7%
MORGAN STANLEY 37.7K 1.7%
COHEN & STEERS, INC. 31.9K 1.4%
ROYAL BANK OF CANADA 29.6K 1.3%
XTX Topco Ltd 29.5K 1.3%
CITIGROUP INC 28.5K 1.3%
HSBC HOLDINGS PLC 28.4K 1.3%
PRICE T ROWE ASSOCIATES INC /MD/ 26.7K 1.2%
Keyframe Capital Partners, L.P. 25.9K 1.2%
UBS Group AG 25.1K 1.1%
CITADEL ADVISORS LLC 23.7K 1.1%
NOMURA HOLDINGS INC 23.7K 1.1%

Largest changes

Manager Action Previous Current Change
MARSHALL WACE, LLP Increased 291.3K 405.6K +114.3K
TWO SIGMA INVESTMENTS, LP Reduced 175.4K 103.2K -72.2K
ACADIAN ASSET MANAGEMENT LLC Increased 10.6K 74.6K +64.1K
Longaeva Partners L.P. New 0 48.2K +48.2K
BNP PARIBAS FINANCIAL MARKETS Increased 53.1K 93.1K +40.0K
BlackRock, Inc. Increased 134.7K 164.5K +29.8K
UBS Group AG Reduced 53.2K 25.1K -28.1K
CITADEL ADVISORS LLC New 0 23.7K +23.7K
CANADA PENSION PLAN INVESTMENT BOARD Sold Out 21.3K 0 -21.3K
XTX Topco Ltd Increased 10.2K 29.5K +19.3K
Trexquant Investment LP Increased 91.7K 110.6K +19.0K
Virtu Financial LLC Sold Out 18.8K 0 -18.8K
VANGUARD CAPITAL MANAGEMENT LLC Increased 343.8K 361.2K +17.4K
Centiva Capital, LP Sold Out 15.0K 0 -15.0K
PRICE T ROWE ASSOCIATES INC /MD/ Increased 13.9K 26.7K +12.7K
Engineers Gate Manager LP New 0 12.7K +12.7K
Susquehanna Portfolio Strategies, LLC Sold Out 12.0K 0 -12.0K
GOLDMAN SACHS GROUP INC New 0 11.3K +11.3K
MORGAN STANLEY Reduced 48.0K 37.7K -10.4K
BRIDGEWAY CAPITAL MANAGEMENT, LLC Reduced 69.6K 59.6K -10.0K
Balyasny Asset Management L.P. New 0 9.7K +9.7K
CITIGROUP INC Reduced 37.2K 28.5K -8.7K
RENAISSANCE TECHNOLOGIES LLC Increased 58.6K 66.5K +7.9K
VANGUARD FIDUCIARY TRUST CO Increased 49.7K 56.9K +7.2K
GSA CAPITAL PARTNERS LLP Reduced 108.5K 102.3K -6.2K

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.