🕵️ Sphere Entertainment Co. ($SPHR)
SEC insider & ownership activity, last 12 months · CIK 1795250 · every row links its SEC filing
Insiders were quiet over the last 12 months – no open-market buys or sells. Ariel Investments, LLC trimmed 11.1% → 8.6%; Morgan Stanley added 4.4% → 6.0%. No red-flag 8-Ks in the window.
🚨 1 signal active —
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Insider flow
0 buyers, $0 (0 lots) · 0 sellers, $0 (0 lots)
No open-market insider transactions in the last 12 months.
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Blackrock, Inc. | 13.5% | 13G | Apr 7, 2026 | filing ↗ | |
| MARY S. Dolan, AS (trustee) | 13.0% | 13D | Feb 25, 2026 | filing ↗ | |
| MARY S. Dolan, AS A (trustee) | 12.3% | Class A | 13D | Dec 28, 2024 | filing ↗ |
| Kathleen M. Dolan, Individually and AS (trustee) | 11.5% | 13D | Feb 25, 2026 | filing ↗ | |
| Corby Dolan Leinauer, AS (trustee) | 11.4% | 13D | Feb 25, 2026 | filing ↗ | |
| James L. Dolan | 11.4% | Class A | 13D | Dec 28, 2024 | filing ↗ |
| James L. Dolan | 11.2% | 13D | Feb 25, 2026 | filing ↗ | |
| Kathleen M. Dolan, Individually and AS (trustee) | 11.1% | Class A | 13D | Dec 28, 2024 | filing ↗ |
| Corby Dolan Leinauer, AS A (trustee) | 11.0% | Class A | 13D | Dec 28, 2024 | filing ↗ |
| Ariel Investments, LLC | 8.6% | 13G | May 14, 2026 | filing ↗ | |
| Morgan Stanley | 7.0% | 13G | May 12, 2026 | filing ↗ | |
| Morgan Stanley Capital Services LLC | 6.7% | 13G | May 12, 2026 | filing ↗ | |
| Morgan Stanley | 6.0% | 13G | Nov 7, 2025 | filing ↗ | |
| Barclays PLC | 5.8% | 13G | May 13, 2025 | filing ↗ | |
| Vanguard Portfolio Management | 5.4% | 13G | Apr 29, 2026 | filing ↗ | |
| PAUL J. Dolan, AS A (trustee) | 5.2% | 13D | Feb 25, 2026 | filing ↗ | |
| Dimensional Fund Advisors LP | 5.0% | 13G | Apr 15, 2025 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Charles F. Dolan 2009 Revocable Trust | $2.8M | Mar 26, 2026 | filing ↗ |
| Greenberg Andrea | $805K | Nov 25, 2025 | filing ↗ |
| Franco Laura | $371K | Nov 12, 2025 | filing ↗ |
| Greenberg Andrea | $638K | Nov 7, 2025 | filing ↗ |
| Greenberg Andrea | $1.4M | Nov 4, 2025 | filing ↗ |
| Greenberg Andrea | $531K | Sep 18, 2025 | filing ↗ |
| Greenberg Andrea | $1.0M | Sep 11, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Shareholder vote (5.07) | Jun 10, 2026 | filing ↗ |
| Earnings (2.02) | May 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 5, 2026 | filing ↗ |
| Earnings (2.02) | Feb 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 12, 2026 | filing ↗ |
| Material agreement (1.01) | Jan 29, 2026 | filing ↗ |
| New financial obligation (2.03) | Jan 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 29, 2026 | filing ↗ |
| Officer/director changes (5.02) | Nov 19, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 19, 2025 | filing ↗ |
| Earnings (2.02) | Nov 4, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 4, 2025 | filing ↗ |
| Officer/director changes (5.02) | Sep 22, 2025 | filing ↗ |
| Officer/director changes (5.02) | Sep 2, 2025 | filing ↗ |
| Earnings (2.02) | Aug 11, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 11, 2025 | filing ↗ |