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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
2023-03-02 Morningside Venture Investments Ltd 10% owner Sale −50,000 $33.75 $1.7M 7,480,598
2023-02-24 Mazzariello Gina Chief Legal Officer Sale −3,586 $34.49 $124K 37,414
2023-02-23 Morningside Venture Investments Ltd 10% owner Sale −48,889 $35.55 $1.7M 7,581,709
2023-02-23 Morningside Venture Investments Ltd 10% owner Sale −1,111 $36.24 $40K 7,580,598
2023-02-22 Morningside Venture Investments Ltd 10% owner Sale −47,888 $34.70 $1.7M 7,532,710
2023-02-22 Morningside Venture Investments Ltd 10% owner Sale −2,112 $35.34 $75K 7,530,598
2023-02-22 Morningside Venture Investments Ltd 10% owner Sale −39,916 $35.91 $1.4M 7,640,682
2023-02-22 Morningside Venture Investments Ltd 10% owner Sale −10,084 $36.34 $366K 7,630,598
2023-01-06 Yeramian Patrick D Chief Medical Officer Sale +1,405 $36.08 $51K 204,928
2023-01-06 Yeramian Patrick D Chief Medical Officer Sale +629 $36.79 $23K 204,299
2023-01-06 Cohen Joshua B Co-Chief Executive Officer Sale +4,122 $36.08 $149K 2,894,463
2023-01-06 Cohen Joshua B Co-Chief Executive Officer Sale +1,846 $36.79 $68K 2,892,617
2023-01-06 FRATES JAMES M Chief Financial Officer Sale +1,836 $36.08 $66K 34,831
2023-01-06 FRATES JAMES M Chief Financial Officer Sale +822 $36.79 $30K 34,009
2023-01-06 Olinger Margaret Chief Commercial Officer Sale +1,660 $36.08 $60K 215,098
2023-01-06 Olinger Margaret Chief Commercial Officer Sale +743 $36.79 $27K 214,355
2023-01-06 Klee Justin B. Co-Chief Executive Officer Sale +4,122 $36.08 $149K 2,894,463
2023-01-06 Klee Justin B. Co-Chief Executive Officer Sale +1,846 $36.79 $68K 2,892,617
2022-12-30 FRATES JAMES M Chief Financial Officer Option exercise +5,000 $6.88 $34K 36,667
2022-12-30 FRATES JAMES M Chief Financial Officer Option exercise · Stock Option (Right to Buy) −5,000 447,000

Page 14 of 19 · 362 trades