13F Insight
DOSSIER · 13F Holders · Q1 2026Technology · Services-Computer Programming, Data Processing, Etc.CyclicalNet sold
FDS

FACTSET RESH SYS INC

778 institutions still hold FACTSET RESH SYS INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 303075105·Services-Computer Programming, Data Processing, Etc.·778 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 5.7%
vs prior quarter
13F value held
$5.5B
58.0% inst. owned
of float
Holders
778
+28 QoQ
filers reporting
Activity
+10 / −13
+741 added · −708 reduced
this quarter
Concentration
14.90%
BAMCO INC /NY/ #1
top holder share
AI Holders Summary · Q1 2026

778 institutions reported FDS in Q1 2026. BAMCO INC /NY/ leads at 14.9% of the visible book. +28 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
BAMCO INC /NY/
CIK 0001017918
$815M3.8M2.46%Q1 202602
BlackRock, Inc.
CIK 0002012383
$613M2.8M0.01%Q1 202603
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119
$523M2.4M0.01%Q1 202604
STATE STREET CORP
CIK 0000093751
$412M1.9M0.01%Q1 202605
Vanguard Portfolio Management
CIK 0002100121
$392M1.8M0.02%Q1 202606
LOOMIS SAYLES & CO L P
CIK 0000312348
$321M1.5M0.43%Q1 202607
CITADEL ADVISORS LLC
CIK 0001423053
$285M983K0.04%Q4 202508
Ninety One UK Ltd
CIK 0001418329
$259M1.2M0.60%Q1 202609
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$248M1.1M0.02%Q1 202610
Invesco Ltd.
CIK 0000914208
$233M1.1M0.04%Q1 202611
MORGAN STANLEY
CIK 0000895421
$228M1.1M0.01%Q1 202612
BANK OF AMERICA CORP /DE/
CIK 0000070858
$183M843K0.01%Q1 202613
MARSHALL WACE, LLP
CIK 0001318757
$169M581K0.15%Q4 202514
WELLS FARGO & COMPANY/MN
CIK 0000072971
$150M693K0.03%Q1 202615
ProShare Advisors LLC
CIK 0001357955· Quasi-passive
$129M596K0.19%Q1 202616
BANK OF MONTREAL /CAN/
CIK 0000927971
$123M567K0.05%Q1 202617
GOLDMAN SACHS GROUP INC
CIK 0000886982
$118M543K0.01%Q1 202618
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$103M473K0.02%Q1 202619
PineStone Asset Management Inc.
CIK 0001904893
$84M388K0.59%Q1 202620
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$82M378K0.04%Q1 2026
Page 1 of 39
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