Sei Investments's top three insider shareholders as of April 17, 2026 are Alfred P Jr West (TenPercentOwner, 9.35Mn shares), Alfred P Jr West (TenPercentOwner, 9.06Mn shares), Alfred P Jr West (Executive Chairman, 6.88Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Alfred P Jr West | - | 9,352,523 | 0 | 08 Dec, 2021 |
| Alfred P Jr West | - | 9,061,792 | 0 | 16 Sep, 2022 |
| Alfred P Jr West | Executive Chairman | 6,875,783 | 0 | 12 Mar, 2026 |
| Carmen Romeo | Executive Vice President | 1,579,827 | 0 | 16 Dec, 2024 |
| Carmen Romeo | - | 1,560,293 | 0 | 30 Dec, 2025 |
| William Doran | - | 623,802 | 0 | 23 Dec, 2025 |
| Dennis Mcgonigle | Executive President | 611,663 | 0 | 01 Aug, 2022 |
| Dennis Mcgonigle | Evp, Cfo | 594,163 | 0 | 01 Sep, 2023 |
| Dennis Mcgonigle | Executive Vice President | 594,163 | 0 | 04 Nov, 2021 |
| Dennis Mcgonigle | Executive President | 576,663 | 0 | 01 Aug, 2022 |
| Ryan Hicke | Chief Executive Officer | 192,815 | 0 | 01 Apr, 2026 |
| Stephen Meyer | Executive Vice President | 186,224 | 0 | 29 Nov, 2021 |
| Kevin Barr | Executive Vice President | 184,741 | 0 | 02 Dec, 2021 |
| Kevin Barr | Executive Vice President | 144,741 | 0 | 02 Dec, 2021 |
| Kathryn Mccarthy | - | 77,907 | 0 | 16 Dec, 2025 |
| Philip Mccabe | Evp Head Of Investment Mgmt | 70,978 | 0 | 16 Dec, 2025 |
| Sean Denham | Executive Vp, Cfo, Coo | 57,758 | 0 | 19 Mar, 2026 |
| Wayne Withrow | Executive Vice President | 55,399 | 0 | 09 Feb, 2024 |
| Wayne Withrow | Executive Vice President | 53,579 | 0 | 01 Nov, 2022 |
| Sean Denham | Executive Vice President | 45,000 | 0 | 18 Mar, 2024 |
| Michael Lane | Executive Vice President | 41,981 | 0 | 16 Dec, 2025 |
| Sanjay Sharma | Evp (*Remarks) | 39,829 | 0 | 16 Dec, 2025 |
| Wayne Withrow | Executive Vice President | 38,799 | 0 | 01 Nov, 2022 |
| Michael Peterson | Executive Vice President | 21,211 | 0 | 16 Dec, 2025 |
| Paul Klauder | Executive Vice President | 20,752 | 0 | 28 Mar, 2024 |
| Carl Guarino | - | 18,308 | 0 | 16 Dec, 2025 |
| Jonathan Brassington | - | 6,207 | 0 | 16 Dec, 2025 |
| Thomas C. Naratil | - | 4,342 | 0 | 16 Dec, 2025 |
| Karin A. Risi | - | 4,342 | 0 | 16 Dec, 2025 |
| Stephanie D. Miller | - | 3,941 | 0 | 16 Dec, 2024 |
| Kathy Heilig | Treasurer | 1,891 | 0 | 21 Nov, 2022 |
| Mark Andrew Warner | - | 921 | 0 | 26 Feb, 2026 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 31 Mar, 2026 | Ryan Hicke | Common Stock | D | 4,349 | $77.21 | 192,815 | D | F |
| 18 Mar, 2026 | Sean Denham | Common Stock | D | 7,673 | $78.77 | 57,758 | D | F |
| 10 Mar, 2026 | Alfred P Jr West | Common Stock | D | 178 | $78.88 | 6,938,052 | D | S |
| 10 Mar, 2026 | Alfred P Jr West | Common Stock | D | 25,391 | $79.97 | 6,912,661 | D | S |
| 10 Mar, 2026 | Alfred P Jr West | Common Stock | D | 29,431 | $80.47 | 6,883,230 | D | S |
| 11 Mar, 2026 | Alfred P Jr West | Common Stock | D | 6,076 | $79.11 | 6,877,154 | D | S |
| 11 Mar, 2026 | Alfred P Jr West | Common Stock | D | 1,371 | $79.94 | 6,875,783 | D | S |
| 25 Feb, 2026 | Mark Andrew Warner | Common Stock | A | 2,000 | $71.12 | 2,921 | D | A |
| 25 Feb, 2026 | Mark Andrew Warner | Common Stock | A | 2,000 | $71.12 | 4,921 | D | A |
| 25 Feb, 2026 | Mark Andrew Warner | Common Stock | D | 4,000 | $81.74 | 921 | D | S |
| 25 Feb, 2026 | Mark Andrew Warner | STOCK OPTION RIGHT TO PURCHASE | D | 2,000 | - | 0 | D | M |
| 25 Feb, 2026 | Mark Andrew Warner | STOCK OPTION RIGHT TO PURCHASE | D | 2,000 | - | 0 | D | M |
| 29 Jan, 2026 | Ryan Hicke | Common Stock | A | 12,500 | $71.12 | 209,664 | D | M |
| 29 Jan, 2026 | Ryan Hicke | Common Stock | A | 12,500 | $71.12 | 222,164 | D | M |
| 29 Jan, 2026 | Ryan Hicke | Common Stock | A | 17,500 | $48.47 | 239,664 | D | M |
| 29 Jan, 2026 | Ryan Hicke | Common Stock | A | 20,000 | $64.43 | 259,664 | D | M |
| 29 Jan, 2026 | Ryan Hicke | Common Stock | A | 17,500 | $56.54 | 277,164 | D | M |
| 29 Jan, 2026 | Ryan Hicke | Common Stock | D | 17,009 | $86.75 | 260,155 | D | S |
| 29 Jan, 2026 | Ryan Hicke | Common Stock | D | 49,937 | $87.39 | 210,218 | D | S |
| 29 Jan, 2026 | Ryan Hicke | Common Stock | D | 13,054 | $88.06 | 197,164 | D | S |