8 insiders reported 80 Form 4 transactions for Sphere Entertainment Co. (SPHR) over the past 18 months (most recent 2026-09-17). Recent activity: Granville-Smith David (Executive Vice President) Sell 14,874 shares, DOLAN JAMES LAWRENCE (Executive Chairman and CEO) Sell 41,191 shares, Granville-Smith David (Executive Vice President) Buy 46,742 shares, Koester Jennifer (President & COO, Sphere) Buy 11,988 shares, DOLAN JAMES LAWRENCE (Executive Chairman and CEO) Buy 26,897 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-17 | Granville-Smith David | Executive Vice President | Sell | 14,874 | $2.1M |
| 2026-09-17 | DOLAN JAMES LAWRENCE | Executive Chairman and CEO | Sell | 41,191 | $5.9M |
| 2026-09-17 | Granville-Smith David | Executive Vice President | Buy | 46,742 | $0 |
| 2026-09-17 | Koester Jennifer | President & COO, Sphere | Buy | 11,988 | $0 |
| 2026-09-17 | DOLAN JAMES LAWRENCE | Executive Chairman and CEO | Buy | 26,897 | $0 |
| 2026-09-17 | Dolan Kristin A | Director | Sell | 13,730 | $2.0M |
| 2026-09-17 | Dolan Ryan Thomas | Director | Buy | 275 | $0 |
| 2026-09-17 | Dolan Kristin A | Director | Buy | 26,897 | $0 |
| 2026-09-17 | Koester Jennifer | President & COO, Sphere | Buy | 6,829 | $0 |
| 2026-09-17 | DOLAN JAMES LAWRENCE | Executive Chairman and CEO | Sell | 13,730 | $2.0M |
| 2026-09-17 | Dolan Kristin A | Director | Buy | 80,689 | $0 |
| 2026-09-17 | Dolan Ryan Thomas | Director | Buy | 321 | $0 |
| 2026-09-17 | Granville-Smith David | Executive Vice President | Buy | 3,213 | $0 |
| 2026-09-17 | Koester Jennifer | President & COO, Sphere | Buy | 8,269 | $0 |
| 2026-09-17 | DOLAN JAMES LAWRENCE | Executive Chairman and CEO | Buy | 80,689 | $0 |
| 2026-09-17 | Dolan Kristin A | Director | Sell | 41,191 | $5.9M |
| 2026-09-17 | Dolan Ryan Thomas | Director | Sell | 309 | $44,533 |
| 2026-09-17 | Granville-Smith David | Executive Vice President | Sell | 32,582 | $4.7M |
| 2026-09-17 | Koester Jennifer | President & COO, Sphere | Sell | 13,826 | $2.0M |
| 2026-09-17 | Dolan Ryan Thomas | Director | Buy | 269 | $0 |
| 2026-09-17 | Dolan Ryan Thomas | Director | Buy | 807 | $0 |
| 2026-09-17 | Granville-Smith David | Executive Vice President | Buy | 26,897 | $0 |
| 2026-09-17 | Koester Jennifer | President & COO, Sphere | Buy | 20,487 | $0 |
| 2026-09-17 | Dolan Ryan Thomas | Director | Buy | 825 | $0 |
| 2026-09-17 | Granville-Smith David | Executive Vice President | Buy | 8,966 | $0 |
Source: SEC Form 4 filings · as of 2026-09-17