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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
2023-05-15 Yeramian Patrick D Chief Medical Officer Option exercise 10b5-1 +9,764 $6.88 $67K 220,382
2023-05-15 Yeramian Patrick D Chief Medical Officer Sale 10b5-1 −11,965 $29.03 $347K 208,417
2023-05-15 Yeramian Patrick D Chief Medical Officer Option exercise · Stock Option (right to buy) 10b5-1 −2,201 15,404
2023-05-15 Yeramian Patrick D Chief Medical Officer Option exercise · Stock Option (right to buy) 10b5-1 −9,764 33,770
2023-04-17 Yeramian Patrick D Chief Medical Officer Option exercise 10b5-1 +44,861 $0.37 $17K 253,278
2023-04-17 Yeramian Patrick D Chief Medical Officer Option exercise 10b5-1 +4,718 $6.88 $32K 257,996
2023-04-17 Yeramian Patrick D Chief Medical Officer Sale 10b5-1 −49,279 $30.53 $1.5M 208,717
2023-04-17 Yeramian Patrick D Chief Medical Officer Sale 10b5-1 −300 $30.94 $9K 208,417
2023-04-17 Yeramian Patrick D Chief Medical Officer Option exercise · Stock Option (right to buy) 10b5-1 −44,861 17,605
2023-04-17 Yeramian Patrick D Chief Medical Officer Option exercise · Stock Option (right to buy) 10b5-1 −4,718 43,534
2023-03-29 Morningside Venture Investments Ltd 10% owner Sale −29,048 $30.45 $885K 6,997,302
2023-03-28 Morningside Venture Investments Ltd 10% owner Sale −100,000 $30.37 $3.0M 7,026,350
2023-03-27 Morningside Venture Investments Ltd 10% owner Sale −32,964 $30.25 $997K 7,154,350
2023-03-27 Morningside Venture Investments Ltd 10% owner Sale −28,000 $30.80 $862K 7,126,350
2023-03-21 Morningside Venture Investments Ltd 10% owner Sale −34,641 $31.69 $1.1M 7,216,121
2023-03-21 Morningside Venture Investments Ltd 10% owner Sale −28,807 $32.17 $927K 7,187,314
2023-03-16 FRATES JAMES M Chief Financial Officer Option exercise +32,500 $6.88 $224K 66,509
2023-03-16 FRATES JAMES M Chief Financial Officer Sale −30,796 $31.86 $981K 35,713
2023-03-16 FRATES JAMES M Chief Financial Officer Sale −1,704 $32.46 $55K 34,009
2023-03-16 FRATES JAMES M Chief Financial Officer Grant or award +21,667 55,676

Page 11 of 19 · 362 trades