MADISON SQUARE GRDN SPRT COR (MSGS): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in MSGS · Communication Services. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
28
13F filers
Aggregate Value
$1.5B
Across holders
Last Price
$400.00
2026-10-19
Sector
Communication Services
GICS
Quarterly fund activity17 increased9 reduced3 exited
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| ARIEL INVESTMENTS, LLC CIK 0000936753 | Institutional Manager | 659K | $264.6M | 17.9% | 2.6% | Reduced | $-563.7M | Q2 2026 |
| BILL & MELINDA GATES FOUNDATION TRUST CIK 0001166559 | Endowment | 592K | $238.1M | 16.1% | 0.7% | Unchanged | +$0 | Q2 2026 |
| GAMCO INVESTORS, INC. ET AL CIK 0000807249 | Institutional Manager | 589K | $236.7M | 16.0% | 2.1% | Added | +$593K | Q2 2026 |
| Clearbridge Investments, LLC CIK 0001348883 | Hedge Fund | 373K | $149.9M | 10.1% | 0.1% | Reduced | $-32.4M | Q2 2026 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 306K | $123.0M | 8.3% | 0.2% | Added | +$85.3M | Q2 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 211K | $84.7M | 5.7% | 0.1% | Added | +$15.6M | Q2 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 208K | $83.6M | 5.7% | 0.0% | Added | +$64.5M | Q2 2026 |
| Gotham Asset Management, LLC CIK 0001510387 | Hedge Fund | 132K | $53.2M | 3.6% | 0.1% | Added | +$2.3M | Q2 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 131K | $52.4M | 3.6% | 0.0% | Added | +$48.0M | Q2 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 93K | $37.5M | 2.5% | 0.0% | Added | — | Q2 2026 |
Reduced
Institutional Manager
$264.6M· 17.9% of total· 2.6% port· 659K sh· $-563.7M QoQ· Q2 2026
Unchanged
Endowment
$238.1M· 16.1% of total· 0.7% port· 592K sh· +$0 QoQ· Q2 2026
Added
Institutional Manager
$236.7M· 16.0% of total· 2.1% port· 589K sh· +$593K QoQ· Q2 2026
Reduced
Hedge Fund
$149.9M· 10.1% of total· 0.1% port· 373K sh· $-32.4M QoQ· Q2 2026
Added
Hedge Fund
$123.0M· 8.3% of total· 0.2% port· 306K sh· +$85.3M QoQ· Q2 2026
Added
Hedge Fund
$84.7M· 5.7% of total· 0.1% port· 211K sh· +$15.6M QoQ· Q2 2026
Added
Hedge Fund
$83.6M· 5.7% of total· 0.0% port· 208K sh· +$64.5M QoQ· Q2 2026
Added
Hedge Fund
$53.2M· 3.6% of total· 0.1% port· 132K sh· +$2.3M QoQ· Q2 2026
Added
Hedge Fund
$52.4M· 3.6% of total· 0.0% port· 131K sh· +$48.0M QoQ· Q2 2026
Added
Hedge Fund
$37.5M· 2.5% of total· 0.0% port· 93K sh· — QoQ· Q2 2026
Added
Hedge Fund
$27.8M· 1.9% of total· 0.9% port· 69K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$21.5M· 1.5% of total· 0.0% port· 54K sh· +$21.5M QoQ· Q2 2026
Added
Hedge Fund
$17.9M· 1.2% of total· 0.0% port· 45K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$17.3M· 1.2% of total· 0.0% port· 43K sh· +$5.2M QoQ· Q2 2026
Reduced
Hedge Fund
$16.6M· 1.1% of total· 0.0% port· 41K sh· $-33.3M QoQ· Q2 2026
Added
Hedge Fund
$10.4M· 0.7% of total· 0.0% port· 26K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$10.1M· 0.7% of total· 0.0% port· 25K sh· +$9.8M QoQ· Q2 2026
Added
Hedge Fund
$8.4M· 0.6% of total· 0.0% port· 21K sh· +$5.0M QoQ· Q2 2026
Added
Hedge Fund
$7.5M· 0.5% of total· 0.0% port· 19K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$4.8M· 0.3% of total· 0.0% port· 12K sh· $-6.9M QoQ· Q2 2026
Added
Hedge Fund
$3.4M· 0.2% of total· 0.0% port· 8K sh· +$354K QoQ· Q2 2026
Reduced
Hedge Fund
$2.5M· 0.2% of total· 0.0% port· 6K sh· +$735K QoQ· Q2 2026
Added
Hedge Fund
$1.5M· 0.1% of total· 0.0% port· 4K sh· — QoQ· Q2 2026
Unchanged
Hedge Fund
$1.3M· 0.1% of total· 0.1% port· 3K sh· +$0 QoQ· Q2 2026
Added
Hedge Fund
$1.1M· 0.1% of total· 0.0% port· 3K sh· +$788K QoQ· Q2 2026
Added
Hedge Fund
$484K· 0.0% of total· 0.0% port· 1K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$249K· 0.0% of total· 0.0% port· 620 sh· +$72K QoQ· Q2 2026
Added
Hedge Fund
$241K· 0.0% of total· 0.0% port· 600 sh· — QoQ· Q2 2026
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Recent insider activity
Form 4 purchases and sales · 24 Jul 2026 – 21 Oct 20260 buyers · $01 sellers · $247K1 transactions
| Insider ⇅ | Trades ⇅ | Bought ⇅ | Sold ⇅ | Largest ⇅ | Latest ▼ | |
|---|---|---|---|---|---|---|
| Warner Bryan SVP, Head of Legal | 1 0 buy · 1 sell | — | $247K | $247K | 16 Sept 2026SEC ↗ |
Distinct buyers and sellers may overlap. “Largest” is the largest reported transaction value in this window. Expand a row to see up to five recent filings.