Astrana Health, Inc. (ASTH) Insider Ownership

Historic Insider Ownership Trends

Astrana Health's three largest insider shareholders as of May 04, 2026 are Albert Waichow Young (Chief Administrative Officer, 11.38Mn shares), Albert Waichow Young (Chief Administrative Officer, 11.38Mn shares), Albert Waichow Young (Chief Administrative Officer, 11.38Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Albert Waichow Young Chief Administrative Officer 1,184,749 10,191,660 06 Dec, 2022
Albert Waichow Young Chief Administrative Officer 1,184,749 10,191,660 06 Dec, 2022
Albert Waichow Young Chief Administrative Officer 1,184,749 10,191,660 06 Dec, 2022
Thomas S. Lam President And Co Ceo 0 10,191,660 06 Dec, 2022
Thomas S. Lam President And Co Ceo 0 10,191,660 06 Dec, 2022
Kenneth T. Sim Executive Chairman 0 10,191,660 06 Dec, 2022
Thomas S. Lam President And Co Ceo 0 10,191,660 06 Dec, 2022
Kenneth T. Sim Executive Chairman 0 6,679,151 18 Feb, 2025
Thomas S. Lam - 0 6,132,802 18 Feb, 2025
Physicians Of California, A Professional Medical Corp Allied - 6,132,802 0 18 Feb, 2025
Thomas S. Lam - 0 6,132,802 18 Feb, 2025
Thomas S. Lam - 0 6,132,802 18 Feb, 2025
Brandon Sim Ceo And President 1,246,385 0 08 Apr, 2026
Brandon Sim Ceo And President 1,246,385 0 08 Apr, 2026
Thomas S. Lam President And Co Ceo 0 1,133,706 18 Feb, 2025
Thomas S. Lam President And Co Ceo 0 1,133,706 18 Feb, 2025
Thomas S. Lam President And Co Ceo 0 1,133,706 18 Feb, 2025
Brandon Sim Ceo And President 1,045,329 0 03 Feb, 2026
Kenneth T. Sim Executive Chairman 739,407 0 07 Apr, 2026
Thomas S. Lam President And Co Ceo 465,657 0 07 Apr, 2026
Thomas S. Lam President And Co Ceo 465,657 0 07 Apr, 2026
Thomas S. Lam President And Co Ceo 423,990 0 09 Mar, 2026
Linda Marsh - 0 270,081 17 Jun, 2022
Linda Marsh - 0 270,081 17 Jun, 2022
Linda Marsh - 0 270,081 17 Jun, 2022
Dinesh M. Kumar Chief Medical Officer 177,655 0 03 Apr, 2026
Dinesh M. Kumar Chief Medical Officer 177,655 0 03 Apr, 2026
Dinesh M. Kumar Chief Medical Officer 177,655 0 03 Apr, 2026
Chandan Basho Coo And Cfo 167,765 0 15 Apr, 2026
Linda Marsh - 92,608 0 05 Nov, 2025
Linda Marsh - 92,608 0 05 Nov, 2025
Linda Marsh - 92,608 0 05 Nov, 2025
Matthew Mazdyasni - 34,763 0 12 Nov, 2025
Matthew Mazdyasni - 34,763 0 12 Nov, 2025
Matthew Mazdyasni - 34,763 0 12 Nov, 2025
David Schmidt - 31,494 0 15 Jan, 2026
David Schmidt - 31,494 0 15 Jan, 2026
David Schmidt - 31,494 0 15 Jan, 2026
John Chiang - 30,848 0 14 Aug, 2025
John Chiang - 30,848 0 14 Aug, 2025
John Chiang - 30,848 0 14 Aug, 2025
Mitchell W Kitayama - 27,846 0 12 Nov, 2025
Mitchell W Kitayama - 27,846 0 12 Nov, 2025
Mitchell W Kitayama - 27,846 0 12 Nov, 2025
Eric Chin Chief Financial Officer 20,844 0 04 Apr, 2022
Eric Chin Chief Financial Officer 20,844 0 04 Apr, 2022
Eric Chin Chief Financial Officer 20,844 0 04 Apr, 2022
John Vong Chief Accounting Officer 17,520 0 03 Dec, 2024
John Vong Chief Accounting Officer 17,520 0 03 Dec, 2024
John Vong Chief Accounting Officer 17,520 0 03 Dec, 2024
Weili Dai, - 13,663 0 13 Jun, 2025
Weili Dai, - 13,663 0 13 Jun, 2025
Weili Dai, - 13,663 0 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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
14 Apr, 2026 Chandan Basho Common Stock D 3,870 $29.07 167,765 D F
06 Apr, 2026 Brandon Sim Common Stock A 201,056 $0.00 1,246,385 D A
06 Apr, 2026 Brandon Sim Common Stock A 201,056 $0.00 1,246,385 D A
06 Apr, 2026 Thomas S. Lam Common Stock A 41,667 $0.00 465,657 D A
06 Apr, 2026 Kenneth T. Sim Common Stock A 100,000 $0.00 739,407 D A
06 Apr, 2026 Thomas S. Lam Common Stock A 41,667 $0.00 465,657 D A
01 Apr, 2026 Dinesh M. Kumar Common Stock A 35,300 $0.00 235,635 D A
02 Apr, 2026 Chandan Basho Common Stock D 2,092 $25.05 171,635 D F
01 Apr, 2026 Dinesh M. Kumar Common Stock A 35,300 $0.00 235,635 D A
01 Apr, 2026 Dinesh M. Kumar Common Stock A 35,300 $0.00 235,635 D A
01 Apr, 2026 Dinesh M. Kumar Common Stock D 57,980 $24.51 177,655 D F
01 Apr, 2026 Dinesh M. Kumar Common Stock D 57,980 $24.51 177,655 D F
01 Apr, 2026 Dinesh M. Kumar Common Stock D 57,980 $24.51 177,655 D F
05 Mar, 2026 Dinesh M. Kumar Common Stock D 1,697 $25.07 200,335 D F
05 Mar, 2026 Dinesh M. Kumar Common Stock D 1,697 $25.07 200,335 D F
05 Mar, 2026 Chandan Basho Common Stock D 1,240 $25.07 173,727 D F
05 Mar, 2026 Thomas S. Lam Common Stock D 9,266 $25.07 423,990 D F
05 Mar, 2026 Dinesh M. Kumar Common Stock D 1,697 $25.07 200,335 D F
05 Mar, 2026 Thomas S. Lam Common Stock D 9,266 $25.07 423,990 D F
05 Mar, 2026 Thomas S. Lam Common Stock D 9,266 $25.07 423,990 D F