LifeStance COO Lisa K. Miller sells 14,663 shares

Available on EDGAR 11/12/2026 - 05:00 PM EST Accepted by SEC EDGAR 11/12/2026 - 05:00 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

LifeStance Health Group, Inc. Chief Operating Officer Lisa K. Miller sold 14,663 shares of common stock on November 11, 2026, at $14.68 per share under a plan intended to satisfy Rule 10b5-1(c), adopted May 7, 2026. On November 10, the issuer withheld 14,722 shares to satisfy tax obligations in connection with net settlement of RSUs that vested that day. The withheld shares were not an open-market sale.

Insider Trade Summary 10b5-1

Net Seller: 14,663 shares

Net Sell 2 txns

Insider Miller Lisa K

Role Chief Operating Officer

Sold 14,663 shs ($215K)

Type	Security	Shares	Price	Value
Sale	Common Stock F2	14,663	$14.68	$215K
Tax Withholding	Common Stock F1	14,722	$14.56	$214K

Holdings After Transaction: Common Stock — 251,904 shares (Direct)

Footnotes (2)

1. F1. Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of restricted stock units ("RSUs") that vested on November 10, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale.
2. F2. Represents shares sold pursuant to a plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) that was adopted on May 7, 2026.

Key Figures

Shares sold: 14,663 shares Sale price per share: $14.68 per share Shares withheld for tax obligations: 14,722 shares +1 more

4 metrics

Shares sold 14,663 shares Lisa K. Miller's sale on November 11, 2026

Sale price per share $14.68 per share Lisa K. Miller's sale on November 11, 2026

Shares withheld for tax obligations 14,722 shares RSU net settlement on November 10, 2026

Price per share associated with withheld shares $14.56 per share Shares withheld on November 10, 2026

Key Terms

Rule 10b5-1(c), restricted stock units, net settlement

3 terms

Rule 10b5-1(c) regulatory

"plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c)"

Rule 10b5-1(c) is an SEC guideline that lets company insiders set up a written, pre-planned schedule to buy or sell their company stock when they are not in possession of material, nonpublic information. For investors, it matters because such plans can reduce the appearance of insider trading by separating decisions from inside knowledge—like putting your trades on autopilot—while also requiring scrutiny since pre-planned trades can still affect market confidence and share value.

restricted stock units financial

"net settlement of restricted stock units ("RSUs")"

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.

net settlement financial

"in connection with the net settlement of restricted stock units"

FAQ

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

How many LFST shares did Chief Operating Officer Lisa K. Miller sell, and at what price?

Lisa K. Miller sold 14,663 shares at $14.68 per share on November 11, 2026. The sale was under a plan intended to satisfy Rule 10b5-1(c), adopted May 7, 2026.

Why were LFST shares withheld from Lisa K. Miller?

The issuer withheld 14,722 shares on November 10, 2026, to satisfy tax withholding obligations in connection with net settlement of RSUs that vested that day. The withholding reduced shares issued to Miller upon settlement and did not constitute an open-market sale.

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

Form 4 Insider Transactions: What Each Field Means →

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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).

X

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^*

Miller Lisa K

(Last) (First) (Middle)

C/O LIFESTANCE HEALTH GROUP, INC.

4800 N. SCOTTSDALE ROAD, SUITE 2500

(Street)

SCOTTSDALE ARIZONA 85251

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
LifeStance Health Group, Inc. [ LFST ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Operating Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
11/10/2026

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	11/10/2026		F(1)		14,722	D	$14.56	266,567	D
Common Stock	11/11/2026		S(2)		14,663	D	$14.68	251,904	D

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. Represents the number of shares withheld by the Issuer to satisfy tax withholding obligations in connection with the net settlement of restricted stock units ("RSUs") that vested on November 10, 2026. The shares withheld represent a reduction of shares issued to the Reporting Person upon settlement of vested RSUs and do not constitute any open-market sale.

2. Represents shares sold pursuant to a plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) that was adopted on May 7, 2026.

	By: /s/ Ryan Pardo, Attorney-in-Fact	11/12/2026
	** 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)