Public ownership evidence

Amylyx Pharmaceuticals, Inc. Common Stock (AMLX) Ownership Disclosures

Read AMLX insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Separate the three disclosure sources

Step 1 of 3

Recent Form 4 activity

Amylyx Pharmaceuticals, Inc. Common Stock: source evidence dated 2026-10-10T12:08:28.848Z.

Available
2026-10-07
Trade date
2026-10-05
Reporting owners
MILNE GEORGE M JR
Code
S
Shares
30,000
Reported value
Not reported
What you should see

The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.

Step 2 of 3

Is this an insider transaction, 13F holding, or Congressional event?

Each source has different dates and units. Raw ticker-matched receipts, including amendments, are not deduplicated current ownership totals.

SEC 0001193125-26-416950
What you should see

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Step 3 of 3

Read AMLX fundamentals

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Read AMLX fundamentals
What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Recent Form 4 activity

See the complete recent form 4 activity
2026-10-072026-10-05MILNE GEORGE M JRS30,000Not reported
2026-09-142026-09-10Bedrosian Camille LS2,081Not reported
2026-09-142026-09-10Bedrosian Camille LS7,947Not reported
2026-09-142026-09-10FRATES JAMES MS1,042Not reported
2026-09-142026-09-10FRATES JAMES MS9,768Not reported
2026-09-142026-09-10Mazzariello GinaS11Not reported
2026-09-142026-09-10Mazzariello GinaS9,525Not reported
2026-09-142026-09-10Klee Justin B.S1,439Not reported
2026-09-142026-09-10Klee Justin B.S29,025Not reported
2026-09-142026-09-10Cohen Joshua BS919Not reported
2026-09-142026-09-10Cohen Joshua BS29,545Not reported
2026-08-212026-08-18FRATES JAMES MA22,807Not reported
2026-08-212026-08-18Klee Justin B.A60,039Not reported
2026-08-212026-08-18Mazzariello GinaA21,284Not reported
2026-08-212026-08-18Bedrosian Camille LA22,807Not reported
2026-08-212026-08-18Cohen Joshua BA60,039Not reported
2026-07-142026-07-10Mazzariello GinaS15,000Not reported
2026-07-142026-07-09Mazzariello GinaS15,000Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

OPTIMIZE FINANCIAL INC.2026-06-302026-08-2831,890$572,744None
Advisors Asset Management, Inc.2022-12-312026-08-283,905$144,290None
Corient Private Wealth LP2026-06-302026-08-2859,322$1,065,424None
Advisors Asset Management, Inc.2024-03-312026-08-278,350$23,714None
Advisors Asset Management, Inc.2025-03-312026-08-272,573$9,108None
Advisors Asset Management, Inc.2023-06-302026-08-275,863$126,465None
Advisors Asset Management, Inc.2023-09-302026-08-278,643$158,253None
Advisors Asset Management, Inc.2023-03-312026-08-274,645$136,284None
Advisors Asset Management, Inc.2023-12-312026-08-278,623$126,931None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2579,872$1,434,501None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-251,434,501$79,872,000None
Advisors Asset Management, Inc.2024-09-302026-08-227,653$24,796None
Advisors Asset Management, Inc.2024-06-302026-08-228,339$15,844None
Advisors Asset Management, Inc.2024-12-312026-08-223,902$14,750None
Nantahala Capital Management, LLC2026-06-302026-08-20486,684$8,740,845None
Fulcrum Asset Management LLP2026-06-302026-08-194,400$82,280None
Strive Financial Group ,LLC2026-06-302026-08-18650$11,674None
Almitas Capital LLC2026-06-302026-08-18974,881$17,508,863None
Corient Private Wealth LP2026-06-302026-08-1859,322$1,065,424None
Seven Fleet Capital Management LP2026-06-302026-08-1814,540$261,138None
SummitTX Capital, L.P.2026-06-302026-08-15227,690$4,089,312None
Graham Capital Management, L.P.2026-06-302026-08-1512,364$222,057None
SEI INVESTMENTS CO2026-06-302026-08-1519,750$354,710None
Aster Capital Management (DIFC) Ltd2026-06-302026-08-15393$7,058None
First Light Asset Management, LLC2026-06-302026-08-153,023,256$54,297,678None
Rafferty Asset Management, LLC2026-06-302026-08-1514,758$265,054None
Quarry LP2026-06-302026-08-15139$2,496None
Saturn V Capital Management LP2026-06-302026-08-154,624,101$83,048,854None
ADAR1 Capital Management, LLC2026-06-302026-08-15494,378$8,879,029None
ADAR1 Capital Management, LLC2026-06-302026-08-1540,100$720,196Put
Nearwater Capital Markets, Ltd2026-06-302026-08-15425,000$7,633,000None
Commodore Capital LP2026-06-302026-08-155,650,000$101,474,000None
XTX Topco Ltd2026-06-302026-08-1525,864$464,517None
Aquatic Capital Management LLC2026-06-302026-08-1539,425$708,073None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15725,030$13,021,539None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15725,030$13,021,539None
Qube Research & Technologies Ltd2026-06-302026-08-15681,389$12,237,746None
Caption Management, LLC2026-06-302026-08-15800$14,368Put
Caption Management, LLC2026-06-302026-08-15100$1,796Call
Caption Management, LLC2026-06-302026-08-15174$3,125None
OSAIC HOLDINGS, INC.2026-06-302026-08-1526$467None
OSAIC HOLDINGS, INC.2026-06-302026-08-15457$8,207None
Schonfeld Strategic Advisors LLC2026-06-302026-08-1566,804$1,199,799None
Trexquant Investment LP2026-06-302026-08-15349,439$6,275,924None
Maven Securities LTD2026-06-302026-08-1525,000$449,000None
MetLife Investment Management, LLC2026-06-302026-08-1555,700$1,000,372None
JANE STREET GROUP, LLC2026-06-302026-08-1557,973$1,041,195None
JANE STREET GROUP, LLC2026-06-302026-08-15241,592$4,338,992None
JANE STREET GROUP, LLC2026-06-302026-08-1560,100$1,079,396Put
JANE STREET GROUP, LLC2026-06-302026-08-1517,500$314,300Call

90-day public filing window, up to 50 source positions.

OPTIMIZE FINANCIAL INC. ↗Advisors Asset Management, Inc. ↗Corient Private Wealth LP ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.

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