Thomas S. Lam - 08 Dec 2025 Form 4 Insider Report for Astrana Health, Inc. (ASTH)

Reporting relationship: Director
Issuer ticker: ASTH
Reported as of: 08 Dec 2025
Net transaction value: -$44,506
SEC form: 4
Accepted by SEC: 10 Dec 2025, 16:15:34 UTC
Prior SEC filing: 07 Mar 2025
Next SEC filing: 09 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Kathy Diep, as Attorney-in-Fact

Key filing fact

Thomas S. Lam filed Form 4 for Astrana Health, Inc. (ASTH) on 10 Dec 2025.

Key facts

This page summarizes Thomas S. Lam's Form 4 filing for Astrana Health, Inc. (ASTH).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 10 Dec 2025, 16:15.

Change

Previous filing in this sequence was filed on 07 Mar 2025.
Current net transaction value: -$44,506.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001664499 Primary reporting owner

Lam Thomas S.

Relationship: Director
Address: C/O ASTRANA HEALTH, INC., 1668 S. GARFIELD AVENUE, 2ND FLOOR, ALHAMBRA
Signature: /s/ Kathy Diep, as Attorney-in-Fact
Signature date: 10 Dec 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ASTH transaction

Common Stock

Options Exercise

Transaction value: $524,546
Shares: +29,502
Change %: +6.9%
Price: $17.78
Shares after: 459,122
Date: 08 Dec 2025
Ownership: Direct

ASTH transaction

Common Stock

Tax liability

Transaction value: $569,052
Shares: -25,866
Change %: -5.6%
Price: $22.00
Shares after: 433,256
Date: 08 Dec 2025
Ownership: Direct
Footnotes: F3

ASTH holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 6,132,802
Date: 08 Dec 2025
Ownership: By Allied Physicians of California, a Professional Medical Corporation
Footnotes: F1

ASTH holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,133,706
Date: 08 Dec 2025
Ownership: By the Thomas and Jeanette Lam 2002 Family Trust

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ASTH transaction Derivative

Stock Option (right to buy)

Options Exercise

Transaction value: $0
Shares: -29,502
Change %: -100%
Price: $0.000000
Shares after: 0
Date: 08 Dec 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 29,502
Exercise price: $17.78
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

These securities are beneficially owned by Allied Physicians of California, a Professional Medical Corporation, of which the Reporting Person is the Chief Executive Officer and Chief Financial Officer and a director and stockholder. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report is not an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.

Footnote F2

These stock options were fully vested and exercisable.

Footnote F3

Includes the following shares of restricted stock, which will vest as follows (in each case subject to continuous employment with the Issuer): (i) 77,500 shares, which will vest in three equal annual installments beginning on March 5, 2026; and (ii) 26,667 shares, which will vest upon achievement of certain pre-established performance goals.