Insider · CIK 0002115341
Kevin J. McCallion
officer
Files at MASS (908 Devices Inc.). First filing Mar 4, 2026, latest Mar 4, 2026.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 1
$0 bought, $49 sold
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
MASS: 908 Devices Inc.
MASSOct 9, 2026 · close 12.05
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 0Weak | 908 Devices Inc. | $49 7 shares | -0% | +234% from low-28% from high |
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Mar 2, 2026 | MASS 908 Devices Inc. | SOpen-market sale Common Stock10b5-1 | -7 | $7.00 | $49 | 44,918 | Mar 4, 2026 |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.