13F Insight
DOSSIER · 13F Holders · Q1 2026High-convictionMulti-bagger
STEP

Stepstone Group Inc

278 institutions still hold Stepstone Group Inc as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 85914m107·278 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 6.7%
vs prior quarter
13F value held
$2.9B
47.0% inst. owned
of float
Holders
278
+22 QoQ
filers reporting
Activity
+12 / −105
+777 added · −726 reduced
this quarter
Concentration
19.64%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

278 institutions reported STEP in Q1 2026. BlackRock, Inc. leads at 19.6% of the visible book. +22 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$564M11.8M0.01%Q1 202602
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$342M7.2M0.14%Q1 202603
Pitcairn Wealth Advisors LLC
CIK 0002089089
$259M4.0M23.86%Q1 202604
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$250M5.2M0.05%Q1 202605
Vanguard Portfolio Management
CIK 0002100121
$214M4.5M0.01%Q1 202606
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$168M3.5M0.00%Q1 202607
Capital World Investors
CIK 0001422849
$156M3.3M0.02%Q1 202608
STATE STREET CORP
CIK 0000093751
$137M2.9M0.00%Q1 202609
CITADEL ADVISORS LLC
CIK 0001423053
$103M1.6M0.02%Q4 202510
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$93M2.0M0.01%Q1 202611
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
CIK 0001644956
$91M1.9M0.30%Q1 202612
JPMORGAN CHASE & CO
CIK 0000019617
$69M1.5M0.00%Q1 202613
BALYASNY ASSET MANAGEMENT L.P.
CIK 0001218710
$68M1.4M0.09%Q1 202614
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
$63M1.3M0.10%Q1 202615
CIBC Private Wealth Group LLC
CIK 0001298088
$58M900K0.10%Q4 202516
WESTFIELD CAPITAL MANAGEMENT CO LP
CIK 0001177719
$56M1.2M0.24%Q1 202617
FMR LLC
CIK 0000315066
$47M995K0.00%Q1 202618
FRANKLIN RESOURCES INC
CIK 0000038777
$47M977K0.01%Q1 202619
WASATCH ADVISORS LP
CIK 0000814133
$44M922K0.29%Q1 202620
SAMLYN CAPITAL, LLC
CIK 0001421097
$43M895K0.73%Q1 2026
Page 1 of 14
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