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Justin B. Klee, Co-Chief Executive Officer at Amylyx Pharmaceuticals, sold AMLX on Sep 10, 2026

Data as of Oct 16

▼ SELL$933K29,025 shares at $32.13Justin B. Klee Co-Chief Executive OfficerAMLX Amylyx Pharmaceuticals, Inc.
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Traded
Sep 10, 2026
Disclosed
Sep 14, 2026
Filed
4 days after the trade

Form 4s are due within two business days.

Official filing (SEC Form 4) ↗

The price around the disclosure

Justin B. Klee, Co-Chief Executive Officer at Amylyx Pharmaceuticals, sold AMLX on Sep 10, 2026TRADEDDISCLOSED
AMLXSimilar stocks (XLV — its sector index fund), rebased to AMLX's price on the disclosure day
AMLX since disclosure
−21.7%
after the sale
Similar stocks (XLV) since disclosure
+5.3%
XLV — its sector index fund

Change in closing price from Sep 14, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.

Our take

None of our tested rules fired on this trade.

Other trades in the same filing

  1. ▼ SELLJustin B. Klee Co-Chief Executive OfficerAMLX Amylyx Pharmaceuticals, Inc.$47.7Kdisclosed Sep 14 · filed 4 days after the trade

See every trade on AMLX →