[144] Mineralys Therapeutics, Inc. SEC Filing

Rhea-AI Filing Summary

Mineralys Therapeutics, Inc. reported a Form 144 notice for the proposed sale of 2,171 shares of common stock via a broker-assisted cashless exercise with an effective date of 05/11/2026. The filing lists multiple prior open-market dispositions by David Rodman in Feb–Apr 2026, including sales of 14,055 and 14,058 share blocks with corresponding dollar amounts shown in the record.

Insights

Securities Counsel

Form 144 records a proposed affiliate sale via cashless exercise.

The filing documents a broker-assisted cashless exercise of 2,171 shares dated 05/11/2026, which is a routine disclosure under the rules for restricted/affiliate sales. Filings like this provide the statutory notice required before public resale.

Cash proceeds, sale mechanics, and exact timing of market transactions are governed by the exercise and resale process; the record includes several prior sale entries by the same reporting person in Feb–Apr 2026 listed with share counts and dollar amounts.

Equity Markets Analyst

Small, periodic dispositions by an affiliate, logged across multiple dates.

The excerpt shows multiple sales by David Rodman throughout Feb–Apr 2026 (examples: 14,055 shares for $385,732.29 on 02/16/2026 and 14,058 shares for $369,225.07 on 03/13/2026), indicating a pattern of routine liquidity events.

These entries are transactional notices; economic impact depends on the volume relative to outstanding float, which is not provided in the excerpt.

Key Figures

Shares to be sold (05/11/2026): 2,171 shares Example prior sale: 14,055 shares Example prior sale amount: $385,732.29 +1 more

4 metrics

Shares to be sold (05/11/2026) 2,171 shares broker-assisted cashless exercise on <date>05/11/2026</date>

Example prior sale 14,055 shares <date>02/16/2026</date> reported with <money>$385,732.29</money>

Example prior sale amount <money>$385,732.29</money> Proceeds from <date>02/16/2026</date> sale of 14,055 shares

Another prior sale 14,058 shares <date>03/13/2026</date> reported with <money>$369,225.07</money>

Key Terms

Form 144, broker-assisted cashless exercise, Common stock

3 terms

Form 144 regulatory

"Filing line that begins with '144: Filer Information' and lists sales notices"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

broker-assisted cashless exercise financial

"Securities To Be Sold line: 'Broker assisted cashless exercise'"

Common stock financial

"Multiple lines labeled 'Common Stock' with sale dates and share counts"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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 stock	Merrill Lynch 225 Liberty St Floor 37 New York NY 10281	2171	64500.41	82498101	05/11/2026	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 stock	05/11/2026	Exercise of employee stock options	Mineralys Therapeutics, Inc.			2171	05/11/2026	Broker assisted cashless exercise

* 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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
David Rodman 150 N. RADNOR CHESTER ROAD SUITE F200 RADNOR PA 19087	Common Stock	02/09/2026	2171	65585.91
David Rodman 150 N. RADNOR CHESTER ROAD SUITE F200 RADNOR PA 19087	Common Stock	02/12/2026	6349	184076.52
David Rodman 150 N. RADNOR CHESTER ROAD SUITE F200 RADNOR PA 19087	Common Stock	02/16/2026	14055	385732.29
David Rodman 150 N. RADNOR CHESTER ROAD SUITE F200 RADNOR PA 19087	Common Stock	02/17/2026	417	11505.03
David Rodman 150 N. RADNOR CHESTER ROAD SUITE F200 RADNOR PA 19087	Common Stock	03/09/2026	2171	58269.64
David Rodman 150 N. RADNOR CHESTER ROAD SUITE F200 RADNOR PA 19087	Common Stock	03/12/2026	6348	173748.15
David Rodman 150 N. RADNOR CHESTER ROAD SUITE F200 RADNOR PA 19087	Common Stock	03/13/2026	14058	369225.07
David Rodman 150 N. RADNOR CHESTER ROAD SUITE F200 RADNOR PA 19087	Common Stock	03/17/2026	417	10696.05
David Rodman 150 N. RADNOR CHESTER ROAD SUITE F200 RADNOR PA 19087	Common Stock	04/09/2026	2170	59414.60
David Rodman 150 N. RADNOR CHESTER ROAD SUITE F200 RADNOR PA 19087	Common Stock	04/13/2026	14058	373086.81
David Rodman 150 N. RADNOR CHESTER ROAD SUITE F200 RADNOR PA 19087	Common Stock	04/15/2026	6348	175585.68
David Rodman 150 N. RADNOR CHESTER ROAD SUITE F200 RADNOR PA 19087	Common Stock	04/17/2026	416	13033.28

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does this Form 144 filing mean for MLYS?

It notifies the market that an affiliate intends to sell restricted shares; this is a required regulatory notice. The filing lists a broker-assisted cashless exercise of 2,171 shares dated 05/11/2026 and prior sales by David Rodman in Feb–Apr 2026.

Who is listed as the selling party in the Form 144 for MLYS?

The record shows transactions by David Rodman, including multiple sales in Feb–Apr 2026. The 05/11/2026 entry describes a cashless exercise attributed to the issuer, Mineralys Therapeutics, Inc., with broker assistance noted.

How many shares are proposed for sale on 05/11/2026 in the filing?

The filing line for the 05/11/2026 broker-assisted cashless exercise records 2,171 shares of common stock to be sold. The excerpt also includes numerous prior sale entries with specific share counts and dollar amounts.

Do the prior transactions listed affect outstanding shares or float?

The excerpt lists multiple prior dispositions by the reporting person with share counts and proceeds, but it does not state total shares outstanding or float. Therefore, the filing does not provide a basis here to quantify proportional impact on outstanding shares.