LifeStance officer proposes $215K share sale

Available on EDGAR 11/12/2026 - 07:19 AM EST Accepted by SEC EDGAR 11/12/2026 - 07:18 AM EST Learn about SEC filing dates

Rhea-AI Filing Summary

LifeStance Health Group, Inc. officer Lisa Miller reported a proposed sale of 14,663 common shares, with an approximate sale date of November 11, 2026, and an aggregate market value of $215,252.84. The shares came from restricted stock vesting on November 10, 2026, recorded as compensation.

Key Figures

Proposed sale: 14,663 shares Aggregate market value: $215,252.84 Common shares outstanding: 380,190,724 shares

3 metrics

Proposed sale 14,663 shares Common shares; approximate sale date November 11, 2026

Aggregate market value $215,252.84 For the proposed sale

Common shares outstanding 380,190,724 shares Outstanding share count stated in the notice

Key Terms

Restricted Stock Vesting, Rule 10b5-1, Aggregate Market Value, attorney-in-fact

4 terms

Restricted Stock Vesting financial

"Nature of Acquisition Transaction: Restricted Stock Vesting"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Rule 10b5-1 regulatory

"If Relying on Rule 10b5-1"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

Aggregate Market Value financial

"Aggregate Market Value"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

attorney-in-fact regulatory

"as attorney-in-fact for Lisa Miller"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

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

How many LFST shares did Lisa Miller propose to sell?

Lisa Miller reported a proposed sale of 14,663 LFST common shares, with an approximate sale date of November 11, 2026 and an aggregate market value of $215,252.84.

How did Lisa Miller acquire the LFST shares listed for sale?

The 14,663 shares came from restricted stock vesting on November 10, 2026, recorded as compensation.

What Rule 10b5-1 date is listed for Lisa Miller's LFST sale?

The reported date is May 7, 2026, identified as the date of plan adoption or giving of instruction for reliance on Rule 10b5-1.

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

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0002036749
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	LifeStance Health Group, Inc.
SEC File Number	001-40478
Address of Issuer	4800 N. SCOTTSDALE ROAD SUITE 2500 SCOTTSDALE ARIZONA 85251
Phone	602-767-2100
Name of Person for Whose Account the Securities are To Be Sold	Miller Lisa K
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	14663	215252.84	380190724	11/11/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	11/10/2026	Restricted Stock Vesting	Issuer			14663	11/10/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	11/12/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/07/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Lisa Miller
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)