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

FACTSET RESH SYS INC

777 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.·777 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$5.5B
visible holders
Holders
777
filers reporting
Concentration
14.88%
BAMCO INC /NY/ #1
top holder share
AI Holders Summary · Q1 2026

777 institutions reported FDS in Q1 2026. BAMCO INC /NY/ leads at 14.9% of the visible book.

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 2026
02
BlackRock, Inc.
CIK 0002012383
$613M2.8M0.01%Q1 2026
03
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$523M2.4M0.01%Q1 2026
04
STATE STREET CORP
CIK 0000093751
$412M1.9M0.01%Q1 2026
05
Vanguard Portfolio Management
CIK 0002100121· Index
$392M1.8M0.02%Q1 2026
06
LOOMIS SAYLES & CO L P
CIK 0000312348
$321M1.5M0.43%Q1 2026
07
CITADEL ADVISORS LLC
CIK 0001423053
$285M983K0.04%Q4 2025
08
Ninety One UK Ltd
CIK 0001418329
$274M1.2M0.61%Q2 2026
09
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$248M1.1M0.02%Q1 2026
10
Invesco Ltd.
CIK 0000914208
$233M1.1M0.02%Q1 2026
11
MORGAN STANLEY
CIK 0000895421
$228M1.1M0.01%Q1 2026
12
BANK OF AMERICA CORP /DE/
CIK 0000070858
$183M843K0.01%Q1 2026
13
MARSHALL WACE, LLP
CIK 0001318757
$169M581K0.15%Q4 2025
14
WELLS FARGO & COMPANY/MN
CIK 0000072971
$150M693K0.03%Q1 2026
15
ProShare Advisors LLC
CIK 0001357955· Quasi-passive
$129M596K0.19%Q1 2026
16
BANK OF MONTREAL /CAN/
CIK 0000927971
$123M567K0.05%Q1 2026
17
GOLDMAN SACHS GROUP INC
CIK 0000886982
$118M543K0.01%Q1 2026
18
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$103M473K0.02%Q1 2026
19
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$82M378K0.04%Q1 2026
20
UBS Group AG
CIK 0001610520
$79M364K0.01%Q1 2026
Page 1 of 39
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Insiders at FACTSET RESH SYS INC
Warren JoshuaMcloughlin ChristopherSkoko GoranHarding CatrinaShan Helen L.Costigan JohnMoskoff Gregory TKarnovsky Kristina W