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Amylyx Pharmaceuticals, Inc.

AMLX Net selling

CIK 0001658551 #1444 in the set updated 17 Sep 2026

Bought (12 mo)

$152.18K

out of their own pocket, the only kind of buying there is

Sold (12 mo)

$10.62M

$538.87K on a plan · $3.76M straight out of an exercise

Sold at will

$6.33M

31 of 37 sales

Net

−$10.47M

−$6.18M against sales at will

By person

8 insiders · 41 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Klee Justin B.

Co-Chief Executive Officer

—

$4.03M (9)

−$4.03M

3,613,056

3.24%

$119.77M

+15.1%

Cohen Joshua B

Co-Chief Executive Officer

—

$4.03M (9)

−$4.03M

3,613,123

3.24%

$119.77M

+11.6%

Mazzariello Gina

Chief Legal Officer

—

$1.18M (8)

−$1.18M

190,838

0.1713%

$6.33M

+26.0%

FRATES JAMES M

Chief Financial Officer

—

$708.37K (6)

−$708.37K

273,625

0.2456%

$9.07M

+105.0%

Bedrosian Camille L

Chief Medical Officer

—

$689.01K (5)

−$689.01K

278,064

0.2496%

$9.22M

+79.1%

Firestone Karen

Director

$152.18K (2)

—

+$152.18K

116,900

0.1049%

$3.88M

+112.5%

MILNE GEORGE M JR

Director

—

812,881

0.7295%

$26.95M

−5.3%

Zeiher Bernhardt G

Director

—

10,000

0.0090%

$331.49K

—

Individual transactions

Insider

Date

Role

Action

Price

Amount

Firestone Karen

31 Aug 2026

Director

Exercised, kept

25,000

$5.05

$126.25K

Firestone Karen

31 Aug 2026

Director

Exercised, kept

25,000

$1.76

$44.00K

Show all 41 transactions →

What was left out

Form 4 filings counted 46

Amendments (4/A) skipped 0

Filings about a different issuer 0

Unreadable filings 0

Joint filings 0

Sales on a Rule 10b5-1 plan 2

Sales straight out of an exercise 4

Sales at will 31

Transactions with no price 0

Shares from compensation/vesting 1,419,126

History held since 10 Jan 2022