InsiderTrades

McCallion Kevin J.

SEC CIK 2115341 · EDGAR

Buying vs selling by month open-market trades, last 24 months, MASS
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
MASS908 Devices Inc.SVP, Products, Production 47.6K — $188.1K 72026-03-022026-04-10

Most active insiders at MASS, 12 months

#InsiderTitleBoughtSold
1 AWM Investment Company, Inc.10% —$3.68M
2 Knopp Kevin J.Pres, CEO, Dir —$2.55M
3 Brown Christopher D.Dir —$1.81M
4 Kenneweg JohnSVP, Sales, Product Marketing —$481.3K
5 Griffith Joseph H. IVCFO —$376.6K
6 McCallion Kevin J.SVP, Products, Production —$188.1K
7 Vann Brandi CDir ——
8 Leonhart Michele M.Dir ——
9 Spoto MarkDir ——
10 Hunt AnthonyDir ——

Transactions 7

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
DT 2026-04-14 16:00 2026-04-10 MASS 908 Devices Inc. McCallion Kevin J. SVP, Products, Production M - OptEx $1.05 +2,693 47.6K +6% +$2,828
DT 2026-04-14 16:00 2026-04-10 MASS 908 Devices Inc. McCallion Kevin J. SVP, Products, Production S - Sale+OE $7.01 -2,693 44.9K -6% -$18.9K
DMT 2026-04-10 19:31 2026-04-08+ MASS 908 Devices Inc. McCallion Kevin J. SVP, Products, Production M - OptEx $1.05 +24.0K 50.3K +91% +$25.2K
DMT 2026-04-10 19:31 2026-04-08+ MASS 908 Devices Inc. McCallion Kevin J. SVP, Products, Production S - Sale+OE $7.05 -24.0K 44.9K -35% -$169.1K
DA 2026-03-05 2026-03-02 MASS 908 Devices Inc. McCallion Kevin J. SVP, Products, Production M - OptEx $1.05 +7 44.9K +0.0% +$7.35
DA 2026-03-05 2026-03-02 MASS 908 Devices Inc. McCallion Kevin J. SVP, Products, Production S - Sale+OE $7.00 -7 44.9K -0.0% -$49
2026-03-04 2026-03-02 MASS 908 Devices Inc. McCallion Kevin J. SVP, Products, Production S - Sale $7.00 -7 44.9K -0.0% -$49

Purchase Sale Sale after option exercise All abbreviations