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Joseph H. Griffith IV, Chief Financial Officer at 908 Devices, sold MASS on Oct 6, 2026

Data as of Oct 16

▼ SELL$65.2K5,000 shares at $13.03Joseph H. Griffith IV Chief Financial OfficerMASS 908 Devices Inc.
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Traded
Oct 6, 2026
Disclosed
Oct 8, 2026
Filed
2 days after the trade

Form 4s are due within two business days.

Official filing (SEC Form 4) ↗

The price around the disclosure

Joseph H. Griffith IV, Chief Financial Officer at 908 Devices, sold MASS on Oct 6, 2026TRADEDDISCLOSED
MASSSimilar stocks (XLV — its sector index fund), rebased to MASS's price on the disclosure day
MASS since disclosure
−2.5%
after the sale
Similar stocks (XLV) since disclosure
+5.1%
XLV — its sector index fund

Change in closing price from Oct 8, 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.

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