Welcome to our dedicated page for Amylyx Pharmaceuticals SEC filings (Ticker: AMLX), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Tracking clinical-stage biotech disclosures can feel like decoding lab notes. Amylyx Pharmaceuticals’ SEC documents are packed with trial endpoints, FDA correspondence, and detailed R&D spend—vital but time-consuming data to locate. If you have ever searched “Amylyx Pharmaceuticals SEC filings explained simply” or wondered whether fresh Form 4 insider transactions hint at confidence before pivotal ALS results, you know the challenge.
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Gina Mazzariello, Chief Legal Officer of Amylyx Pharmaceuticals (AMLX), reported two Rule 10b5-1 sales totaling 30,000 common shares on August 12, 2025 and August 13, 2025. The August 12 sales comprised 15,000 shares at a weighted average price of $8.0735 (trades ranged $7.82–$8.27) and the August 13 sales comprised 15,000 shares at a weighted average price of $8.3364 (trades ranged $8.13–$8.47). After these transactions the reporting person beneficially owned 156,969 shares. The sales were executed under a 10b5-1 trading plan adopted on May 13, 2025. The Form 4 was filed and signed by an attorney in fact on August 14, 2025.
Amylyx Pharmaceuticals (AMLX) filed a Form 144 reporting a proposed sale of 30,000 common shares through Morgan Stanley Smith Barney LLC Executive Financial Services. The filing lists an aggregate market value of $234,600, an approximate sale date of 08/12/2025, and that the shares trade on NASDAQ. The filing reports 89,167,432 shares outstanding, meaning the 30,000-share notice represents approximately 0.034% of outstanding shares.
The securities were acquired as Restricted Stock Units from the issuer on 09/30/2024 and paid on that date. The filing reports "Nothing to Report" for securities sold in the past three months. Some standard Form 144 attestation language about material nonpublic information and Rule 10b5-1 is present, while several filer and issuer identification fields in the form appear blank or not provided.
Adage Capital Management, L.P., together with Robert Atchinson and Phillip Gross, reports shared beneficial ownership of 8,800,000 shares of Amylyx Pharmaceuticals, Inc. ("AMLX"). Those shares represent 9.87% of the company's common stock, based on an aggregate of 89,141,087 shares outstanding as of April 28, 2025. The holding is reported as shared voting and shared dispositive power of 8,800,000 shares, with 0 shares of sole voting or sole dispositive power.
The filing is submitted on Schedule 13G/A and includes a certification that the securities were acquired and are held in the ordinary course of business and not to influence control of the issuer.
Key disclosure: On 24 June 2025 Point72 Asset Management, Point72 Capital Advisors and founder Steven A. Cohen jointly filed a Schedule 13G regarding Amylyx Pharmaceuticals, Inc. (AMLX).
The filing shows 4,717,709 AMLX common shares held through Point72 Associates, equivalent to 5.3 % of the company’s outstanding stock. All voting and dispositive authority is listed as “shared,” with zero sole power reported. The report is passive, made under Rule 13d-1(b), and classifies the reporting persons as: Point72 Asset Management – “PN” (Partnership), Point72 Capital Advisors – “CO” (Corporation), and Mr. Cohen – “IN” (Individual).
Ownership is indirect: Point72 Asset Management manages the securities, Point72 Capital Advisors is its general partner, and Mr. Cohen controls both entities. The principal business address for all parties is 72 Cummings Point Road, Stamford, CT 06902. A joint-filing agreement (Exhibit 99.1) formalises combined reporting.
This disclosure elevates Point72 to the roster of ≥5 % institutional holders of Amylyx, giving the hedge fund material visibility in the share register; however, the filing contains no purchase prices, transaction timetables, or stated strategic intentions beyond passive investment.
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