Mineralys Therapeutics (NASDAQ: MLYS) files Rule 144 disclosing 6,349‑share cashless exercise

Rhea-AI Filing Summary

Mineralys Therapeutics, Inc. submitted a Rule 144 notice disclosing the sale of 6,349 shares of Common Stock on 06/12/2026 via a broker‑assisted cashless exercise of employee stock options. The filing also lists multiple open‑market dispositions by David Rodman totaling repeated sales during March–June 2026 with individual lot sizes shown.

Insights

Corporate Actions Analyst

Rule 144 notice records a cashless exercise and routine open‑market sales.

The filing lists a 6,349‑share sale on 06/12/2026 described as a broker‑assisted cashless exercise of employee stock options. Broker‑assisted cashless exercises typically convert option holdings into net shares delivered after withholding.

Prior sales by David Rodman are itemized with dates and per‑lot share counts from 03/09/2026 through 06/10/2026. Cash‑flow treatment (who received proceeds) is not specified beyond per‑trade proceeds shown for each lot.

Securities Compliance Specialist

Filing is a standard Rule 144 notification; no new regulatory actions are shown.

The notice identifies the disposition method as "broker assisted cashless exercise" and lists multiple sales with dollar proceeds per lot. The filing documents compliance mechanics rather than corporate strategy or financing.

Timing and any holding‑period or volume‑limitation language that might affect resale eligibility are not included in the excerpt; subsequent filings may clarify compliance details if required.

Key Figures

Shares sold (single notice): 6,349 shares Rodman sale example: 14,058 shares Rodman sale example: 6,348 shares +1 more

4 metrics

Shares sold (single notice) 6,349 shares broker‑assisted cashless exercise on 06/12/2026

Rodman sale example 14,058 shares sale on 03/13/2026 for $369,225.07

Rodman sale example 6,348 shares sale on 03/12/2026 for $173,748.15

Rodman most recent listed lot 2,170 shares sale on 06/10/2026 for $54,250.00

Key Terms

Rule 144, broker‑assisted cashless exercise, open‑market dispositions

3 terms

Rule 144 regulatory

"submitted a Rule 144 notice disclosing the sale"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

broker‑assisted cashless exercise financial

"described as a broker‑assisted cashless exercise of employee stock options"

open‑market dispositions market

"lists multiple open‑market dispositions by David Rodman"

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 06/12/2026 - 04:17 PM Accepted by SEC EDGAR 06/12/2026 - 04:17 PM Learn about SEC filing dates

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	6349	151901.37	82498101	06/12/2026	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	06/12/2026	Exercise of employee stock options	Mineralys Therapeutics, Inc.			6349	06/12/2026	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	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
David Rodman 150 N. RADNOR CHESTER ROAD SUITE F200 RADNOR PA 19087	Common Stock	05/11/2026	2171	64500.41
David Rodman 150 N. RADNOR CHESTER ROAD SUITE F200 RADNOR PA 19087	Common Stock	05/12/2026	6348	186348.35
David Rodman 150 N. RADNOR CHESTER ROAD SUITE F200 RADNOR PA 19087	Common Stock	05/13/2026	14056	401789.92
David Rodman 150 N. RADNOR CHESTER ROAD SUITE F200 RADNOR PA 19087	Common Stock	05/18/2026	417	11488.35
David Rodman 150 N. RADNOR CHESTER ROAD SUITE F200 RADNOR PA 19087	Common Stock	06/10/2026	2170	54250.00

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 did Mineralys Therapeutics (MLYS) disclose in the Form 144?

The Form 144 discloses a sale of 6,349 shares on 06/12/2026 via a broker‑assisted cashless exercise of employee stock options. The notice also lists multiple open‑market sales by David Rodman between March and June 2026, with per‑trade proceeds shown.

Who executed the transactions listed in the MLYS Form 144?

The excerpt shows a broker‑assisted cashless exercise for Mineralys and multiple open‑market dispositions by David Rodman. Each Rodman lot is dated and accompanied by share counts and proceeds, such as 14,058 shares on 03/13/2026 for $369,225.07.

What is a "broker‑assisted cashless exercise" mentioned in the MLYS filing?

A broker‑assisted cashless exercise is a method where options are exercised and enough shares are sold immediately to cover exercise price and taxes; the net shares are delivered. The filing labels the 06/12/2026 transaction with that method for 6,349 shares.

How many shares did David Rodman sell in the three months shown on the Form 144?

The filing lists multiple Rodman sales across March–June 2026 with lot sizes including 2,171, 6,348, 14,058, and others; each lot shows the gross proceeds in dollars. The excerpt provides per‑lot quantities rather than a summed total.

Does the Form 144 state who received the proceeds from the listed sales?

The excerpt shows dollar proceeds per transaction but does not specify who received the proceeds. The entry for 06/12/2026 is described as a broker‑assisted cashless exercise; further cash‑flow attribution is not provided in the excerpt.