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Matthew Fraser Ahearn, Chief Operating Officer at Shoulder Innovations, sold SI on Aug 18, 2026

Data as of Oct 16

▼ SELL$263K12,586 shares at $20.94Matthew Fraser Ahearn Chief Operating OfficerSI Shoulder Innovations, Inc.
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Traded
Aug 18, 2026
Disclosed
Aug 18, 2026
Filed
The same day

Form 4s are due within two business days.

Official filing (SEC Form 4) ↗

The price around the disclosure

Matthew Fraser Ahearn, Chief Operating Officer at Shoulder Innovations, sold SI on Aug 18, 2026TRADEDDISCLOSED
SISimilar stocks (XLV — its sector index fund), rebased to SI's price on the disclosure day
SI since disclosure
−14.4%
after the sale
Similar stocks (XLV) since disclosure
+4.1%
XLV — its sector index fund

Change in closing price from Aug 18, 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. ▼ SELLMatthew Fraser Ahearn Chief Operating OfficerSI Shoulder Innovations, Inc.$34.2Kdisclosed Aug 18 · filed the same day
  2. ▼ SELLMatthew Fraser Ahearn Chief Operating OfficerSI Shoulder Innovations, Inc.$167Kdisclosed Aug 18 · filed 1 day after the trade

See every trade on SI →