Astrana Health CEO surrenders 9,889 shares for taxes

Astrana Health, Inc. CEO and President Brandon Sim reported surrendering 9,889 common shares at $37.00 per share on October 6, 2026, to offset tax withholding on restricted stock units that vested that day.

Rhea-AI Filing Summary

Astrana Health, Inc. CEO and President Brandon Sim reported surrendering 9,889 common shares at $37.00 per share on October 6, 2026, to offset tax withholding on restricted stock units that vested that day. His reported direct holdings afterward were 1,228,972 shares. The Sim Family Irrevocable Trust 2021 held 258,824 shares, and the Brandon Sim 2020 Irrevocable Trust held 392,816 shares; Sim disclaims beneficial ownership of those trust shares except to the extent of his pecuniary interest.

Insider Trade Summary

Tax Withholding: 9,889 shares

Tax Withholding 3 txns

Insider Sim Brandon

Role CEO and President

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F3, F4, F5	9,889	$37.00	$366K
holding	Common Stock F1	--	--	--
holding	Common Stock F2	--	--	--

Holdings After Transaction: Common Stock — 1,228,972 shares (Direct); Common Stock — 258,824 shares (Indirect, By Sim Family Irrevocable Trust 2021); Common Stock — 392,816 shares (Indirect, By Brandon Sim 2020 Irrevocable Trust)

Footnotes (5)

1. F1. These securities are held by the Sim Family Irrevocable Trust 2021. 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.
2. F2. These securities are held by the Brandon Sim 2020 Irrevocable Trust. 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.
3. F3. Represents the surrender of shares to offset against tax withholding obligations associated with certain restricted stock units that vested on October 6, 2026.
4. F4. Includes 17,105 shares of unvested restricted stock, which will vest on March 31, 2027, subject to continuous employment with the Issuer. Also includes the following restricted stock units, which will vest as follows (in each case subject to continuous employment with the Issuer): (i) 45,261 restricted stock units, which will vest in three equal semi-annual installments beginning on April 2, 2027; (ii) 91,027 restricted stock units, which will vest in five equal semi-annual installments beginning on March 5, 2027; and (iii) 175,924 restricted stock units, which will vest in seven equal semi-annual installments beginning on April 6, 2027.
5. F5. Includes 2,152 shares acquired under the Issuer's Employee Stock Purchase Plan.

Key Figures

Shares surrendered: 9,889 shares Reported per-share price: $37.00 per share Direct shares after transaction: 1,228,972 shares +2 more

5 metrics

Shares surrendered 9,889 shares For tax withholding on October 6, 2026

Reported per-share price $37.00 per share Shares surrendered on October 6, 2026

Direct shares after transaction 1,228,972 shares Brandon Sim's reported position after the October 6, 2026 transaction

Shares held by Sim Family Irrevocable Trust 2021 258,824 shares Indirect holding reported as of October 6, 2026

Shares held by Brandon Sim 2020 Irrevocable Trust 392,816 shares Indirect holding reported as of October 6, 2026

Key Terms

tax withholding obligations, restricted stock units, unvested restricted stock, pecuniary interest

4 terms

tax withholding obligations financial

"tax withholding obligations associated with certain restricted stock units"

restricted stock units financial

"restricted stock units that vested on October 6, 2026"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

unvested restricted stock financial

"17,105 shares of unvested restricted stock"

pecuniary interest financial

"except to the extent of his pecuniary interest therein"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many ASTH shares did Brandon Sim surrender for tax withholding?

Brandon Sim surrendered 9,889 common shares at $37.00 per share on October 6, 2026. The shares offset tax withholding obligations associated with restricted stock units that vested that day.

What future vesting awards are included in Brandon Sim's ASTH holdings?

His reported direct holdings included 17,105 unvested restricted stock shares scheduled to vest March 31, 2027, subject to continuous employment. They also included 45,261 restricted stock units vesting in three equal semi-annual installments beginning April 2, 2027; 91,027 in five equal semi-annual installments beginning March 5, 2027; and 175,924 in seven equal semi-annual installments beginning April 6, 2027. Each RSU schedule is subject to continuous employment.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/08/2026 - 08:11 PM Accepted by SEC EDGAR 10/08/2026 - 08:10 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Sim Brandon

(Last) (First) (Middle)

C/O ASTRANA HEALTH, INC.

1668 S. GARFIELD AVENUE, 2ND FLOOR

(Street)

ALHAMBRA CALIFORNIA 91801

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Astrana Health, Inc. [ ASTH ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CEO and President

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/06/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/06/2026		F		9,889(3)	D	$37	1,228,972(4)(5)	D
Common Stock								258,824	I	By Sim Family Irrevocable Trust 2021(1)
Common Stock								392,816	I	By Brandon Sim 2020 Irrevocable Trust(2)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. These securities are held by the Sim Family Irrevocable Trust 2021. 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.

2. These securities are held by the Brandon Sim 2020 Irrevocable Trust. 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.

3. Represents the surrender of shares to offset against tax withholding obligations associated with certain restricted stock units that vested on October 6, 2026.

4. Includes 17,105 shares of unvested restricted stock, which will vest on March 31, 2027, subject to continuous employment with the Issuer. Also includes the following restricted stock units, which will vest as follows (in each case subject to continuous employment with the Issuer): (i) 45,261 restricted stock units, which will vest in three equal semi-annual installments beginning on April 2, 2027; (ii) 91,027 restricted stock units, which will vest in five equal semi-annual installments beginning on March 5, 2027; and (iii) 175,924 restricted stock units, which will vest in seven equal semi-annual installments beginning on April 6, 2027.

5. Includes 2,152 shares acquired under the Issuer's Employee Stock Purchase Plan.

	/s/ Kathy Diep, as Attorney-in-Fact	10/08/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)