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AMLX - Amylyx Pharmaceuticals, Inc.

Insider Sale by Klee Justin B. (Co-CEO)

1 Month
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Trade Summary

3 days ago, Klee Justin B., serving as Co-CEO at Amylyx Pharmaceuticals, Inc. (AMLX), sold 29,282 shares at $14.47 per share, for a total transaction value of $423,760.00. Following this transaction, Klee Justin B. now holds 3,334,616 shares of AMLX.

This sale represents a 1.00% decrease in Klee Justin B.'s stake in the company. This is considered a medium-conviction trade.

The trade was executed on Monday, March 2, 2026 and publicly disclosed via SEC Form 4 filing on Wednesday, March 4, 2026, 2 days after the trade was made.

Amylyx Pharmaceuticals, Inc. operates in the HEALTHCARE sector, specifically within the BIOTECHNOLOGY industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.

Klee Justin B.

Co-CEO

Justin Klee is the Co-Founder and Co-Chief Executive Officer of Amylyx Pharmaceuticals, Inc. (NASDAQ: AMLX), a clinical-stage biopharmaceutical company focused on developing therapies for neurodegenerative diseases such as ALS.[[1]](https://fintool.com/app/research/companies/AMLX/people/justin-klee)[[2]](https://www.amylyx.com/our-company/leadership-team)[[5]](https://www.amylyx.com/our-company) He co-founded the company in 2013 with Josh Cohen while at Brown University and has served as Co-CEO since January 2014, also acting as a director.[[1]](https://fintool.com/app/research/companies/AMLX/people/justin-klee)[[2]](https://www.amylyx.com/our-company/leadership-team)[[3]](https://xtalks.com/the-road-ahead-for-former-als-hopeful-relyvrio-ft-amylyxs-joshua-cohen-and-justin-klee/) Under his leadership, Amylyx advanced from inception to IPO, secured FDA and Health Canada approvals for AMX0035 (Relyvrio/Albrioza), and launched the product, though it faced setbacks with the failed PHOENIX trial leading to paused promotion.[[1]](https://fintool.com/app/research/companies/AMLX/people/justin-klee)[[3]](https://xtalks.com/the-road-ahead-for-former-als-hopeful-relyvrio-ft-amylyxs-joshua-cohen-and-justin-klee/)[[4]](https://www.biopharmadive.com/news/amylyx-ceo-relyvrio-phoenix-data-als-market/709861/) Klee holds a B.S. in Neuroscience from Brown University and conducted prior research in neurophysiology and Alzheimer’s disease at Harvard Medical School under Dr. Rudolph Tanzi.[[1]](https://fintool.com/app/research/companies/AMLX/people/justin-klee)[[3]](https://xtalks.com/the-road-ahead-for-former-als-hopeful-relyvrio-ft-amylyxs-joshua-cohen-and-justin-klee/) His contributions include co-inventing PB-TURSO for neurodegenerative diseases, and he has been recognized on Business Insider’s 30 Under 40 in Healthcare and PM360’s ELITE list.[[3]](https://xtalks.com/the-road-ahead-for-former-als-hopeful-relyvrio-ft-amylyxs-joshua-cohen-and-justin-klee/) As of April 2025, he was 34 years old, and he remains actively involved in the company’s strategic direction amid recent challenges.[[1]](https://fintool.com/app/research/companies/AMLX/people/justin-klee)[[4]](https://www.biopharmadive.com/news/amylyx-ceo-relyvrio-phoenix-data-als-market/709861/)

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Trade Price

$14.47

Quantity

29,282

Total Value

$423,760.00

Shares Owned

3,334,616

Trade Date

Monday, March 2, 2026

3 days ago

SEC Filing Date

Wednesday, March 4, 2026

Filed 2 days after trade

HEALTHCAREBIOTECHNOLOGY

About Amylyx Pharmaceuticals, Inc.

Company Overview

No company information available
View news mentioning AMLX

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