According to recent filings covering the 90 days ending December 24, 2025, the three most significant insider holders at Astrana Health are Director Thomas S. Lam (1.57Mn shares), Executive Chairman Kenneth T. Sim (1.19Mn shares), COO And Cfo Chandan Basho (174.97K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Albert Waichow Young | Chief Administrative Officer | 11,376,409 | 06 Dec, 2022 |
| Physicians Of California, A Professional Medical Corp Allied | 6,132,802 | 18 Feb, 2025 | |
| Thomas S. Lam | 1,566,962 | 10 Dec, 2025 | |
| Kenneth T. Sim | Executive Chairman | 1,185,756 | 13 Nov, 2025 |
| Brandon Sim | CEO And President | 1,023,219 | 07 Mar, 2025 |
| Adrian Vazquez | Chief Medical Officer | 371,004 | 28 Apr, 2021 |
| Dinesh M. Kumar | Chief Medical Officer | 217,893 | 09 Sep, 2025 |
| Chandan Basho | COO And Cfo | 174,967 | 06 Oct, 2025 |
| Linda Marsh | 92,608 | 05 Nov, 2025 | |
| Matthew Mazdyasni | 34,763 | 12 Nov, 2025 | |
| John Chiang | 30,848 | 14 Aug, 2025 | |
| Mitchell W Kitayama | 27,846 | 12 Nov, 2025 | |
| Eric Chin | Chief Financial Officer | 20,844 | 04 Apr, 2022 |
| John Vong | Chief Accounting Officer | 17,520 | 03 Dec, 2024 |
| David Schmidt | 15,763 | 03 Sep, 2025 | |
| Glenn Sobotka | Chief Accounting Officer | 14,701 | 28 Mar, 2025 |
| Weili Dai, | 13,663 | 13 Jun, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 08 Dec, 2025 | Thomas S. Lam | Common Stock | A | 29,502 | $17.78 | 459,122 | D | M |
| 08 Dec, 2025 | Thomas S. Lam | Common Stock | D | 25,866 | $22.00 | 433,256 | D | F |
| 10 Nov, 2025 | Kenneth T. Sim | Common Stock | A | 29,502 | $17.78 | 639,407 | D | M |
| 10 Nov, 2025 | Matthew Mazdyasni | Common Stock | A | 20,000 | $18.20 | 34,763 | D | M |
| 07 Nov, 2025 | Mitchell W Kitayama | Common Stock | A | 12,000 | $18.20 | 27,846 | D | M |
| 03 Nov, 2025 | Linda Marsh | Common Stock | A | 20,000 | $18.20 | 103,641 | D | M |
| 03 Nov, 2025 | Linda Marsh | Common Stock | D | 11,033 | $32.99 | 92,608 | D | F |
| 02 Oct, 2025 | Chandan Basho | Common Stock | D | 1,979 | $27.77 | 174,967 | D | F |
| 15 Sep, 2025 | Mitchell W Kitayama | Common Stock | A | 8,000 | $18.20 | 29,060 | D | M |
| 15 Sep, 2025 | Mitchell W Kitayama | Common Stock | D | 8,000 | $30.23 | 21,060 | D | D |
| 15 Sep, 2025 | Mitchell W Kitayama | Common Stock | D | 5,214 | $30.23 | 15,846 | D | D |
| 05 Sep, 2025 | Chandan Basho | Common Stock | D | 1,694 | $29.70 | 176,946 | D | F |
| 05 Sep, 2025 | Dinesh M. Kumar | Common Stock | D | 1,694 | $29.70 | 217,893 | D | F |
| 05 Sep, 2025 | Dinesh M. Kumar | - | - | 217,893 | D | |||
| 02 Sep, 2025 | David Schmidt | Common Stock | A | 20,000 | $18.20 | 35,763 | D | M |
| 02 Sep, 2025 | David Schmidt | - | - | 35,763 | D | |||
| 02 Sep, 2025 | David Schmidt | Common Stock | D | 20,000 | $27.76 | 15,763 | D | D |
| 02 Sep, 2025 | David Schmidt | - | - | 15,763 | D | |||
| 13 Aug, 2025 | John Chiang | Common Stock | A | 20,000 | $18.20 | 43,132 | D | M |
| 13 Aug, 2025 | John Chiang | - | - | 43,132 | D |