Ian Mortimer, President & CEO at Xenon Pharmaceuticals, bought XENE on Sep 30, 2026

Data as of Oct 16

▲ BUY$1.1M30,000 shares at $37.38Ian Mortimer President & CEOXENE Xenon Pharmaceuticals Inc.

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Traded: Sep 30, 2026
Disclosed: Oct 1, 2026
Filed: 1 day after the trade

Form 4s are due within two business days.

Official filing (SEC Form 4) ↗

The price around the disclosure

XENESimilar stocks (XLV — its sector index fund), rebased to XENE's price on the disclosure day

XENE since disclosure

−14.0%

Similar stocks (XLV) since disclosure

+6.3%

XLV — its sector index fund

Change in closing price from Oct 1, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.

Our take

⚪ CFO buys $25K+ of own stock — fired on this disclosure day
Not enough evidence · In past tests: 3.6 percentage points better than similar stocks over 3 months · 2,178 tries
⚪ CFO buys $25K+ of own liquid stock — fired on this disclosure day
Not enough evidence · In past tests: 2.0 percentage points better than similar stocks over 3 months · 1,426 tries

What this rule is doing with XENE right now

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