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CIK 0001658551 · Non-accelerated filer<br>Smaller reporting company

Amylyx Pharmaceuticals, Inc.

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Ticker
AMLX
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
464600503
Phone
617-682-0917
Business address
55 CAMBRIDGE PARKWAY, SUITE 6W, CAMBRIDGE, MA, 02142
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$10,951,125
in 9 filings, $8.0M under 10b5-1 plans

Net −$10,951,125. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Cohen Joshua B −$4.0M Co-Chief Executive Officer sold 4% of stake
  2. Klee Justin B. −$4.0M Co-Chief Executive Officer sold 4% of stake
  3. FRATES JAMES M −$1.6M Chief Financial Officer sold 18% of stake
  4. MILNE GEORGE M JR −$831K Director sold 4% of stake
  5. Bedrosian Camille L −$325K Chief Medical Officer sold 3% of stake
Date Insider Transaction Shares Price Value Owned after
2022-07-06 ALS Invest 1 B.V. 10% owner Sale −2,307 $22.42 $52K 5,895,280
2022-06-09 FONTEYNE PAUL R. Director Grant or award · Stock Option (Right to Buy) +19,000 19,000
2022-06-09 MILNE GEORGE M JR Director Grant or award · Stock Option (Right to Buy) +19,000 19,000
2022-06-09 Cheng Isaac Director Grant or award · Stock Option (Right to Buy) +19,000 19,000
2022-06-09 Quimi Daphne Director Grant or award · Stock Option (Right to Buy) +19,000 19,000
2022-05-05 Klee Justin B. Co-Chief Executive Officer Option exercise +334,520 $0.37 $124K 2,898,585
2022-05-05 Klee Justin B. Co-Chief Executive Officer Option exercise · Stock Option (right to buy) −334,520 0
2022-05-05 Cohen Joshua B Co-Chief Executive Officer Option exercise +334,520 $0.37 $124K 2,898,585
2022-05-05 Cohen Joshua B Co-Chief Executive Officer Option exercise · Stock Option (right to buy) −334,520 0
2022-02-22 Mazzariello Gina Chief Legal Officer Grant or award +41,000 41,000
2022-02-22 Mazzariello Gina Chief Legal Officer Grant or award · Stock Option (right to buy) +182,000 182,000
2022-02-11 FRATES JAMES M Chief Financial Officer Grant or award · Stock Option (right to buy) +25,000 25,000
2022-01-11 ALS Invest 1 B.V. 10% owner Conversion +1,129,386 1,129,386
2022-01-11 ALS Invest 1 B.V. 10% owner Conversion +4,826,503 5,955,889
2022-01-11 ALS Invest 1 B.V. 10% owner Conversion · Series A Preferred Stock −1,129,386 0
2022-01-11 ALS Invest 1 B.V. 10% owner Conversion · Series B Preferred Stock −4,826,503 0
2022-01-11 Morningside Venture Investments Ltd 10% owner Conversion +10,415,650 10,415,650
2022-01-11 Morningside Venture Investments Ltd 10% owner Purchase +263,158 $19.00 $5.0M 10,678,808
2022-01-11 Morningside Venture Investments Ltd 10% owner Conversion · Series A Preferred Stock −1,409,035 0
2022-01-11 Morningside Venture Investments Ltd 10% owner Conversion · Series B Preferred Stock −6,410,964 0

Page 16 of 19 · 362 trades