Seaport Entertainment's top three insider shareholders as of May 14, 2026 are Square Capital Management, L.P. Pershing (Director, 5.02Mn shares), Anton D. Nikodemus (Chief Executive Officer, 200.81K shares), Matthew Morris Partridge (Chief Executive Officer, 115.61K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Square Capital Management, L.P. Pershing | - | 0 | 5,023,780 | 22 Oct, 2024 |
| Anton D. Nikodemus | Chief Executive Officer | 200,814 | 0 | 16 Sep, 2024 |
| Matthew Morris Partridge | Chief Executive Officer | 115,615 | 0 | 02 Apr, 2026 |
| Square Capital Management, L.P. Pershing | - | 0 | 90,875 | 23 Apr, 2026 |
| Lenah Elaiwat | Chief Financial Officer | 31,454 | 0 | 02 Mar, 2026 |
| Rebecca E. Sachs | Chief People Officer | 23,400 | 0 | 09 Mar, 2026 |
| Luciana Fato | General Counsel | 19,212 | 0 | 09 Mar, 2026 |
| Monica S Digilio | - | 7,218 | 0 | 17 Mar, 2026 |
| Michael Anthony Crawford | - | 7,218 | 0 | 17 Mar, 2026 |
| David Z. Hirsh | - | 7,218 | 0 | 17 Mar, 2026 |
| Anthony F Massaro | - | 33 | 0 | 22 Oct, 2024 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 21 Apr, 2026 | Square Capital Management, L.P. Pershing | Common Stock, par value $0.01 per share | D | 90,875 | $22.25 | 4,932,905 | I | J |
| 21 Apr, 2026 | Square Capital Management, L.P. Pershing | Common Stock, par value $0.01 per share | D | 90,875 | $22.25 | 4,932,905 | I | J |
| 21 Apr, 2026 | Square Capital Management, L.P. Pershing | Common Stock, par value $0.01 per share | D | 90,875 | $22.25 | 4,932,905 | I | J |
| 21 Apr, 2026 | Square Capital Management, L.P. Pershing | Common Stock, par value $0.01 per share | D | 90,875 | $22.25 | 4,932,905 | I | J |
| 21 Apr, 2026 | Square Capital Management, L.P. Pershing | Common Stock, par value $0.01 per share | D | 90,875 | $22.25 | 4,932,905 | I | J |
| 21 Apr, 2026 | Square Capital Management, L.P. Pershing | Common Stock, par value $0.01 per share | A | 90,875 | $22.25 | 90,875 | I | J |
| 21 Apr, 2026 | Square Capital Management, L.P. Pershing | Common Stock, par value $0.01 per share | A | 90,875 | $22.25 | 90,875 | I | J |
| 21 Apr, 2026 | Square Capital Management, L.P. Pershing | Common Stock, par value $0.01 per share | A | 90,875 | $22.25 | 90,875 | I | J |
| 21 Apr, 2026 | Square Capital Management, L.P. Pershing | Common Stock, par value $0.01 per share | A | 90,875 | $22.25 | 90,875 | I | J |
| 21 Apr, 2026 | Square Capital Management, L.P. Pershing | Common Stock, par value $0.01 per share | A | 90,875 | $22.25 | 90,875 | I | J |
| 01 Apr, 2026 | Matthew Morris Partridge | Common Stock | D | 4,918 | $21.46 | 115,615 | D | F |
| 16 Mar, 2026 | Michael Anthony Crawford | Common Stock | A | 1,175 | $0.00 | 7,218 | D | A |
| 16 Mar, 2026 | David Z. Hirsh | Common Stock | A | 1,175 | $0.00 | 7,218 | D | A |
| 16 Mar, 2026 | Monica S Digilio | Common Stock | A | 1,175 | $0.00 | 7,218 | D | A |
| 06 Mar, 2026 | Rebecca E. Sachs | Common Stock | D | 684 | $21.64 | 23,400 | D | F |
| 06 Mar, 2026 | Matthew Morris Partridge | Common Stock | D | 2,726 | $21.64 | 120,533 | D | F |
| 06 Mar, 2026 | Luciana Fato | Common Stock | D | 728 | $21.64 | 19,212 | D | F |
| 26 Feb, 2026 | Luciana Fato | Common Stock | A | 8,127 | $0.00 | 19,940 | D | A |
| 26 Feb, 2026 | Rebecca E. Sachs | Common Stock | A | 7,858 | $0.00 | 25,071 | D | A |
| 26 Feb, 2026 | Lenah Elaiwat | Common Stock | A | 9,766 | $0.00 | 32,368 | D | A |