AMLX Form 144: Insider lists 57,529 shares to sell

AMLX lists insider resale activity by Joshua B. Cohen: a planned disposition of 57,529 common shares tied to vesting restricted stock units on 03/02/2026 and multiple sales in the prior three months.

Accepted by SEC EDGAR 03/02/2026 - 04:30 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

AMLX lists insider resale activity by Joshua B. Cohen: a planned disposition of 57,529 common shares tied to vesting restricted stock units on 03/02/2026 and multiple sales in the prior three months. The excerpt shows sales of 7,715 (01/06/2026), 136,193 (01/15/2026), 1,974 (01/16/2026), and 15,500 (02/02/2026).

FAQ

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

What does AMLX's Form 144 filing disclose about insider Joshua B. Cohen?

It discloses planned and recent sales of AMLX common shares by Joshua B. Cohen, including 57,529 tied to vesting RSUs. The filing lists prior open-market sales of 7,715; 136,193; 1,974; and 15,500 shares on specified January–February 2026 dates.

How many shares are listed as to be sold on the AMLX Form 144 dated 03/02/2026?

The filing lists 57,529 common shares to be sold on 03/02/2026 in connection with vesting restricted stock units. The entry is labeled as an issuer-related vesting disposition.

Which dates show prior AMLX insider sales by Joshua B. Cohen in the last three months?

The excerpt records prior sales on 01/06/2026, 01/15/2026, 01/16/2026, and 02/02/2026. Each row lists the number of common shares sold on those dates.

Are the past three months' sale quantities by Joshua B. Cohen provided in the AMLX excerpt?

Yes. The filing shows specific sale quantities: 7,715, 136,193, 1,974, and 15,500 shares tied to the dates in January–February 2026. No aggregate total is given in the excerpt.

Does the Form 144 excerpt indicate the method or recipient of the 57,529-share disposition?

The entry is described as linked to the vesting of restricted stock units, with the issuer listed; the filing does not specify sales methods or purchasers in the provided excerpt.

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	0001898644
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	Amylyx Pharmaceuticals, Inc.
SEC File Number	001-41199
Address of Issuer	55 Cambridge Parkway Suite 6W Cambridge MASSACHUSETTS 02142
Phone	617-682-0917
Name of Person for Whose Account the Securities are To Be Sold	Cohen Joshua B
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
Relationship to Issuer	Director

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	Morgan Stanley Smith Barney LLC 1 New York Plaza 8th Floor New York NY 10004	29282	424120	3334683	03/02/2026	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	03/02/2026	Vesting of Restricted Stock Units	Issuer			57529	03/02/2026	N/A

* 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
Cohen Joshua B 55 Cambridge Parkway Suite 6W Cambridge MA 02142	Common	01/16/2026	1974	27299
Cohen Joshua B 55 Cambridge Parkway Suite 6W Cambridge MA 02142	Common	01/15/2026	136193	1850795
Cohen Joshua B 55 Cambridge Parkway Suite 6W Cambridge MA 02142	Common	01/06/2026	7715	85596
Cohen Joshua B 55 Cambridge Parkway Suite 6W Cambridge MA 02142	Common	02/02/2026	15500	227593

144: Remarks and Signature

Remarks	This sale represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person.
Date of Notice	03/02/2026
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/ Joshua B. Cohen
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)