INSM Form 144 Discloses 10,000-Share Insider Sale by Melvin Sharoky

Rhea-AI Filing Summary

Insmed, Inc. (INSM) Form 144 filing reports a proposed sale of common stock by an insider. The notice shows 10,000 shares to be sold through Merrill Lynch (Orlando address) with an aggregate market value of $1,294,600.00 and company common shares outstanding listed as 211,374,786. The securities were acquired via stock options on 05/13/2021 (5,865 shares) and 05/22/2024 (13,192 shares). A sale of 10,000 shares by Melvin Sharoky on 08/12/2025 is also reported with gross proceeds of $1,215,350.00. The filer certifies no undisclosed material adverse information. Specific filing date is not provided in the content.

Insights

Securities Analyst

TL;DR: Routine insider Rule 144 notice showing a small, non‑control sale; no new financial data.

The filing documents a proposed sale of 10,000 common shares by insider Melvin Sharoky under Rule 144, with the shares acquired via stock options in 2021 and 2024. The reported aggregate market value ($1.29M) and the prior sale on 08/12/2025 ($1.215M gross proceeds) are disclosed. Relative to outstanding shares (~211.4M), the amount is immaterial to capitalization and provides no operational or earnings information. This is a compliance disclosure rather than a material corporate development.

Corporate Governance Expert

TL;DR: Disclosure meets Rule 144 mechanics; no indication of undisclosed material information.

The notice includes standard attestations about absence of undisclosed material adverse information and references potential Rule 10b5‑1 plans without specifying any plan adoption date. The filing identifies the insider, acquisition method (stock options), broker, and transaction amounts, fulfilling routine governance transparency requirements. No unusual transactions, departures, or governance actions are reported.

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	Merrill Lynch 4705 S Apopka Vineland Rd Ste 203 Orlando FL 32819	10000	1294600.00	211374786	08/20/2025	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	05/13/2021	Stock Option	Melvin Sharoky			5865	05/13/2021	stock Option
Common	05/22/2024	Stock Option	Melvin Sharoky			13192	05/22/2024	Stock Option

* 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
Melvin Sharoky 200 121st Ave Apt 501 Treasure Island FL 33706	Common	08/12/2025	10000	1215350.00

144: Remarks and Signature

Remarks

Date of Notice

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)