13F Insight
DOSSIER · 13F Holders · Q1 2026Consumer Cyclical · Services-Miscellaneous Amusement & RecreationBellwetherCompounder
MSGS

MADISON SQUARE GRDN SPRT COR

435 institutions still hold MADISON SQUARE GRDN SPRT COR as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 55825T103·Services-Miscellaneous Amusement & Recreation·435 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 9.8%
vs prior quarter
13F value held
$3.6B
67.0% inst. owned
of float
Holders
435
-30 QoQ
filers reporting
Activity
+77 / −7
+882 added · −828 reduced
this quarter
Concentration
17.79%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

435 institutions reported MSGS in Q1 2026. BlackRock, Inc. leads at 17.8% of the visible book. -30 net institutions QoQ — distribution reading.

Top holders

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

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$647M2.0M0.01%Q1 202602
Silver Lake Group, L.L.C.
CIK 0001418226
$611M1.9M16.60%Q1 202603
Vanguard Portfolio Management
CIK 0002100121
$300M933K0.02%Q1 202604
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$255M792K0.01%Q1 202605
ARIEL INVESTMENTS, LLC
CIK 0000936753
$231M717K2.58%Q1 202606
GATES FOUNDATION TRUST
CIK 0001166559
$190M592K0.60%Q1 202607
GAMCO INVESTORS, INC. ET AL
CIK 0000807249
$189M588K1.86%Q1 202608
STATE STREET CORP
CIK 0000093751
$182M565K0.01%Q1 202609
Clearbridge Investments, LLC
CIK 0001348883
$146M454K0.13%Q1 202610
GABELLI FUNDS LLC
CIK 0001081407
$126M391K0.85%Q1 202611
TOMS Capital Investment Management LP
CIK 0001743937
$112M347K2.92%Q1 202612
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$100M310K0.01%Q1 202613
MORGAN STANLEY
CIK 0000895421
$99M307K0.01%Q1 202614
VICTORY CAPITAL MANAGEMENT INC
CIK 0001040188
$83M258K0.05%Q1 202615
REINHART PARTNERS, LLC.
CIK 0001080298
$72M225K2.08%Q1 202616
SAMLYN CAPITAL, LLC
CIK 0001421097
$70M218K1.19%Q1 202617
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$67M210K0.01%Q1 202618
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$55M172K0.09%Q1 202619
BAMCO INC /NY/
CIK 0001017918
$53M165K0.16%Q1 202620
Invesco Ltd.
CIK 0000914208
$50M155K0.01%Q1 2026
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