SEC filingsOct 12, 2026 to Oct 19, 2026: insiders reported 840 purchases and sales across 212 companies.840 insider purchases and sales in 7 daysSee the filings →
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Company profile

AMLX

Amylyx Pharmaceuticals, Inc. Common Stock
NASDAQHealth Care

Latest close: 26.34 USD · Oct 16, 2026 · 1 year · split-adjusted

On the price, the facts of the public record■Insider buy□Insider sell●Results filed
With an account, also○dividends▲splits◌next earningswith an account

End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.

Latest on record

The most recent facts, as filed.

Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.

  1. Oct 5, 2026Reported sale · Form 4GEORGE M MILNE JR · $830.9KOpen the filing ↗
  2. Oct 5, 2026Notice of sale · Form 144GEORGE MILNE · Director · $2.8MOpen the filing ↗
  3. Sep 11, 2026Notice of sale · Form 144Klee Justin B. · Officer, Director · $980.3KOpen the filing ↗

In numbers

What this profile holds, counted.

Closes · 1 year250
SEC filings on record40319 flagged findings
Reported transactions (Form 4)80since Apr 16, 2024 · and 1 other holding
Corporate events (8-K)11since Nov 2, 2022

What the record says

Description, identity and filings, each with its source.

Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.

SEC topics

Regulatory history

Topics detected in its SEC reports, with the original excerpt.

Each topic is assigned by a classifier over the full filing; the excerpts show where it was detected and are not always enough to verify it. Open the filing to read it in full.

  • 2026-05-07share offering or dilution eventrecentOpen filing ↗
    “…activities, including recruiting management and technical staff, raising capital, producing materials for preclinical…”
  • 2026-05-07listing compliance noticerecentOpen filing ↗
    “…our common stock when you wish to do so. In the event of a delisting, we can provide no assurance that any action taken by us to…”
    +1 more passage from the same document
    • “…purchase our common stock when you wish to do so. In the event of a delisting, we can provide no assurance that any action taken by…”
  • 2026-05-07regulatory investigationrecentOpen filing ↗
    “…sanctions or enforcement actions. We cannot ensure that our compliance controls, policies, and procedures will be sufficient to…”
    +1 more passage from the same document
    • “…in connection with our arrangements with FSS or Tricare Retail Pharmacy, we are required to refund the difference to the…”
  • 2026-05-07Department of Justice inquiryrecentOpen filing ↗
    “…approval, including the requirement in the U.S. to implement a Risk Evaluation and Mitigation Strategy, or REMS. The FDA and other…”

Original excerpts from SEC filings, untranslated. Not advice and not a prediction.

SEC record

SEC dossier

What this company has filed with the SEC, in plain language.

The 25 most recent filings (of 403)

Everything filed

Every SEC filing, newest first, with what it is. Below, each type with its own explanation.

  • Oct 7, 26Form 4 ↗Insider transaction
  • Oct 5, 26Form 144 ↗Notice of proposed sale
  • Insider transaction · 5 Form 4 filingsshow all 5hide
  • Notice of proposed sale · 5 Form 144 filingsshow all 5hide
  • Sep 8, 268-K ↗Current report · Entered a material agreement
  • Insider transaction · 6 Form 4 filingsshow all 6hide
  • Aug 20, 268-K ↗Current report · Entered a material agreement
  • Aug 20, 26424B5 ↗Securities offering
  • Aug 18, 26424B5 ↗Securities offering
  • Aug 18, 268-K ↗Current report · Other events
  • Aug 18, 268-K ↗Current report · Communication to the market · Other events
  • Aug 6, 2610-Q ↗Quarterly report

403 filings on record, the oldest from May 28, 21.

Listing the 25 most recent filings of the 403 on record.

8-Ks, explained

Stress1Structure7Governance3
  • Structure4 material agreements entered2025 – 2026show all 4hide
    • Sep 8, 26StructureEntered a material agreement8-K 1.01 ↗
    • Aug 20, 26StructureEntered a material agreement+1 more in the same filing8-K 1.01 ↗
    • Sep 10, 25StructureEntered a material agreement+1 more in the same filing8-K 1.01 ↗
    • Jan 10, 25StructureEntered a material agreement+1 more in the same filing8-K 1.01 ↗
  • Jul 10, 24StructureCompleted an acquisition or disposal8-K 2.01 ↗
  • Jun 21, 24StructureEntered a material agreement+1 more in the same filing8-K 1.01 ↗
  • Apr 4, 24StressRestructuring plan with committed costs+3 more in the same filing8-K 2.05 ↗
  • Mar 14, 24GovernanceA senior executive left or was appointed8-K 5.02 ↗
  • Mar 21, 23GovernanceA senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
  • Dec 6, 22StructureEntered a material agreement+1 more in the same filing8-K 1.01 ↗
  • Nov 2, 22GovernanceA senior executive left or was appointed8-K 5.02 ↗

Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.

Ownership and control

Schedule 13G: short-form filing

The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.

  • FMR LLC15.0%Dec 31, 25SCHEDULE 13G/A ↗2 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing
  • Perceptive Advisors LLC7.5%Mar 31, 26SCHEDULE 13G/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing
  • BlackRock, Inc.7.1%Dec 31, 25SCHEDULE 13G/A ↗1 earlier filing
  • TCG Crossover GP II, LLC5.7%Dec 31, 25SCHEDULE 13G/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum.
  • The Vanguard Group5.3%Dec 31, 25SCHEDULE 13G ↗2 earlier filings
show 3 more holdershide
  • Commodore Capital LP5.1%Nov 10, 25SCHEDULE 13G ↗4 co-filers on this document — the figure is the largest single stake, not their sum.
  • Point72 Asset Management, L.P.2.6%Sep 30, 25SCHEDULE 13G/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum.
  • Adage Capital Management, L.P.2.5%Dec 31, 25SCHEDULE 13G/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing

Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.

Sale intention announced

On Oct 5, GEORGE MILNE filed notice of intent to sell up to $2.8M. That is about 0.09% of shares outstanding. It is filed under a scheduled plan (10b5-1), arranged in advance.

A notice is not a sale: it may not go ahead, may happen in part, or at a different price.

After the notice, they sold $831K on Oct 5, per their Form 4. That is 30% of the shares announced so far, and the window is still open.

View notice (Form 144) ↗+6 more recent notices · 1 with a later sale

SEC record

Insider transactions

Buys and sells reported by officers, directors and major shareholders on SEC Form 4.

Buys and sells

  • Oct 5, 26Sell$831KGEORGE M MILNE JR↗
  • Sep 10, 26Sell$933KJustin B. KleeCo-Chief Executive Officer↗
  • Sep 10, 26Sell$48KJustin B. KleeCo-Chief Executive Officer↗
  • Sep 10, 26Sell$950KJoshua B CohenCo-Chief Executive Officer↗
  • Sep 10, 26Sell$30KJoshua B CohenCo-Chief Executive Officer↗
  • Sep 10, 26Sell$309KGina MazzarielloChief Legal Officer↗
  • Sep 10, 26Sell$367Gina MazzarielloChief Legal Officer↗
  • Sep 10, 26Sell$315KJAMES M FRATESChief Financial Officer↗
  • Sep 10, 26Sell$35KJAMES M FRATESChief Financial Officer↗
  • Sep 10, 26Sell$256KCamille L BedrosianChief Medical Officer↗
  • Sep 10, 26Sell$69KCamille L BedrosianChief Medical Officer↗
  • Jul 10, 26Sell$264KGina MazzarielloChief Legal Officer↗

There are 14 more transactions in this stretch.

Stock compensation, tax and giftsshow the 14 other transactionshide

Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.

  • Aug 31, 26Compensation$44KKaren Firestone↗
  • Aug 31, 26Compensation$126KKaren Firestone↗
  • Aug 18, 26Compensationamount n/aJoshua B CohenCo-Chief Executive Officer↗
  • Aug 18, 26Compensationamount n/aCamille L BedrosianChief Medical Officer↗
  • Aug 18, 26Compensationamount n/aGina MazzarielloChief Legal Officer↗
  • Aug 18, 26Compensationamount n/aJustin B. KleeCo-Chief Executive Officer↗
  • Aug 18, 26Compensationamount n/aJAMES M FRATESChief Financial Officer↗
  • Mar 5, 26Compensationamount n/aCamille L BedrosianChief Medical Officer↗
  • Mar 5, 26Compensationamount n/aJustin B. KleeCo-Chief Executive Officer↗
  • Mar 5, 26Compensationamount n/aJAMES M FRATESChief Financial Officer↗
  • Mar 5, 26Compensationamount n/aGina MazzarielloChief Legal Officer↗
  • Mar 5, 26Compensationamount n/aJoshua B CohenCo-Chief Executive Officer↗
  • Jan 16, 26Compensation$22KJustin B. KleeCo-Chief Executive Officer↗
  • Jan 16, 26Compensation$21KJoshua B CohenCo-Chief Executive Officer↗

The full record holds 194 transactions and goes back to Jan 6, 22.

Its sector and its market

Amylyx Pharmaceuticals, Inc. Common Stock among Health Care companies

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Coverage

What sits behind this page.

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Prices
End-of-day closes provided by Twelve Data. One close per session; not real time. Closes adjusted for splits.
Series quality
Series with incidents in the period; the chart shows what could be kept.
SEC records
403 documents on file, from May 28, 2021 to Oct 7, 2026.
Company description
No description available.
This page
Generated on Oct 19, 2026; refreshed through the day.

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Which SEC documents appear here?

Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.

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It depends on the company: some European issuers file a 20-F or 6-K with the SEC and others don't. The profile shows whatever is on record; when there is nothing, it says so rather than guessing why. Europe does not yet have a common filing archive like EDGAR in the United States. The EU will open its own, ESAP, in July 2027 (managers' transactions arrive in January 2028), and we plan to add it once it is available.

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Amylyx Pharmaceuticals, Inc. Common Stock (AMLX): stock price history, insider trades and SEC filings — HornScout