Have Amylyx Pharmaceuticals Insiders Been Selling Stock?

Amylyx Pharmaceuticals' co-founder Joshua Cohen sold $950k worth of stock at $32.16 per share, reducing his holding by 0.9%. This was the largest insider sale in the past year, occurring below the current price of $33.15. Insiders have sold more shares than bought over the past year, with total insider ownership at 6.2% of the company.

Original reporting
Published Sep 16, 2026, 10:38 AM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Sep 16, 2026, 11:10 PM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
Have Amylyx Pharmaceuticals Insiders Been Selling Stock? — source image
Decision brief

The 30-second read

Low
01

Why it matters

The disclosed Form 4 filing provides fresh data on insider holdings, but the modest transaction size limits material impact.

02

Market read

Small‑scale insider sale; limited trading relevance.

03

What to watch

Insider retains 99.1% ownership and remains invested, which may offset negative perception.

Relevance 4/10Novelty 4/10Timing: recent insider sale

Background

Amylyx Pharmaceuticals (NASDAQ: AMYX) is a biotech focused on rare neurological diseases. Insider activity is often monitored for signals.

Market effects

Minimal; biotech sector unlikely to react broadly to a single insider sale.

None; the event is company‑specific.

Negligible.

Counterpoint

The sale could be a strategic rebalancing rather than a lack of confidence, so price may stay stable.

Key entities

  • Joshua Cohen

    Co‑Founder and insider of Amylyx Pharmaceuticals.

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