Stocks · Health care · Pharmaceutical Preparations

Amylyx Pharmaceuticals, Inc.

AMLX Clue Score40

United States Fiscal year ends December CIK 0001658551 Results filed 5 Nov 2026

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What the insiders did Net selling

By person

16 insiders · 162 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Morningside Venture Investments Ltd entity

10% owner

$5.00M (1)

$22.54M (17)

−$17.54M

4,997,302

4.48%

$138.41M

—

Justin B. Klee

Co-Chief Executive Officer

—

$7.82M (20)

−$7.82M

3,613,056

3.24%

$100.07M

+46.1%

Joshua B Cohen

Co-Chief Executive Officer

—

$7.82M (20)

−$7.82M

3,613,123

3.24%

$100.07M

+46.1%

Patrick D Yeramian

Chief Medical Officer

—

$3.72M (8) scheduled

−$3.72M

205,605

0.1845%

$5.69M

−8.0%

James M Frates

Chief Financial Officer

$101.37K (1)

$2.83M (15)

−$2.73M

284,697

0.2555%

$7.89M

—

Viking Global Investors LP entity

10% owner

$43.70M (1)

$41.72M (16)

+$1.98M

1,850,940

1.66%

$51.27M

—

Gina Mazzariello

Chief Legal Officer

—

$1.87M (20) scheduled

−$1.87M

190,838

0.1713%

$5.29M

—

Invest 1 B.V. ALS

10% owner

—

$1.25M (4)

−$1.25M

5,895,280

5.29%

$163.28M

—

George M Milne Jr

Director

$719.79K (2)

$1.95M (3)

−$1.23M

782,881

0.7026%

$21.68M

−10.1%

Camille L Bedrosian

Chief Medical Officer

—

$798.66K (8)

−$798.66K

278,064

0.2496%

$7.70M

—

Karen Firestone

Director

$350.64K (5)

—

+$350.64K

116,900

0.1049%

$3.24M

—

Isaac Cheng

Director

$124.98K (1)

—

+$124.98K

10,422,228

9.35%

$288.66M

—

Paul R. Fonteyne

Director

$74.99K (1)

—

+$74.99K

3,947

0.0035%

$109.32K

—

Margaret Olinger

Chief Commercial Officer

$130.00K (1)

$87.23K (2)

+$42.77K

276,108

0.2478%

$7.65M

+56.2%

Bernhardt G Zeiher

Director

$37.01K (1)

—

+$37.01K

10,000

0.0090%

$276.97K

—

Daphne Quimi

Director

$9.44K (2)

—

+$9.44K

5,000

0.0045%

$138.48K

—