Sphere Entertainment Co. (SPHR) ownership: Top institutional holder: BlackRock, Inc. ($458.79M). Insider activity: Net Seller (4 buys, 16 sells). 2 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 3907941.00 | $458.79M | 2026-03-31 |
| Jericho Capital Asset Management L.P. | 2605615.00 | $305.90M | 2026-03-31 |
| ARIEL INVESTMENTS, LLC | 2462309.00 | $289.08M | 2026-03-31 |
| VANGUARD GROUP INC | 2653282.00 | $252.27M | 2025-12-31 |
| MORGAN STANLEY | 2046988.00 | $240.32M | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1541767.00 | $181.00M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 1200760.00 | $140.97M | 2026-03-31 |
| STATE STREET CORP | 1023654.00 | $120.18M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-03-30 | |
| Sell | null | 2026-03-13 | |
| Buy | null | 2026-03-13 | |
| Sell | null | 2026-03-13 | |
| Sell | null | 2026-03-13 | |
| Sell | null | 2026-03-13 | |
| Buy | null | 2026-03-13 | |
| Sell | null | 2026-03-13 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.