Institutional Ownership
Madison Square Grdn Sprt Cor
CUSIP 55825T103CL AMSGSQ1 2026
13D / 13G Filings
30
Schedule 13D/13G on record
Beneficial Filers
11
Distinct reporting persons
Largest Stake
13.2%
Max % of class reported
Institutional Holders
402
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
30 filings · latest Mar 9, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Mar 9, 2026 | Dolan James Lawrence | 13D/A | 13.2% | — | SEC |
| 2 | Feb 27, 2026 | James L. Dolan | 13D/A | 13.2% | — | SEC |
| 3 | Feb 24, 2026 | James L. Dolan | 13D/A | 13.2% | — | SEC |
| 4 | Jan 8, 2026 | Blackrock, Inc. | 13G/A | 10.0% | 1.96M | SEC |
| 5 | Jul 18, 2025 | Blackrock, Inc. | 13G/A | 9.4% | 1.82M | SEC |
| 6 | Apr 30, 2025 | The Vanguard Group | 13G/A | 8.9% | 1.73M | SEC |
| 7 | Feb 4, 2025 | James L. Dolan | 13D/A | 12.6% | — | SEC |
| 8 | Dec 31, 2024 | Charles F. Dolan | 13D/A | 12.6% | — | SEC |
| 9 | Mar 11, 2024 | Vanguard Group Inc | 13G/A | 10.0% | 1.94M | SEC |
| 10 | Feb 14, 2024 | Ariel Investments, LLC | 13G/A | 4.9% | 947.0K | SEC |
20 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Madison Square Grdn Sprt Cor.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 2.01M | $646.63M |
| 2 | Silver Lake Group, L.L.C. | 1.90M | $610.65M |
| 3 | Ariel Investments, LLC | 717.3K | $230.55M |
| 4 | Gates Foundation Trust | 592.4K | $190.40M |
| 5 | Gamco Investors, Inc. Et Al | 587.7K | $188.87M |
| 6 | State Street Corp | 564.9K | $181.56M |
| 7 | Clearbridge Investments, LLC | 453.6K | $145.78M |
| 8 | Gabelli Funds LLC | 390.9K | $125.62M |
| 9 | Toms Capital Investment Management LP | 347.0K | $111.53M |
| 10 | Geode Capital Management, LLC | 310.3K | $99.74M |