Disclosed positions

Estimated from their latest filings — positions may have changed since

$5.77M

combined est. value

Stock	Shares	Price	Value	Weight	As of
MASS908 Devices Inc.	732,825	$7.88	$5.77M	100%	2026-06-26

MASS

908 Devices Inc.

$5.77M

732,825 sh

All filings on record

Every Form 4 transaction we track for this filer

all 9buys 0sells 5

Stock	Transaction	Date	~6mo later
MASS908 Devices Inc.	Sell $25.4K · 2,798 sh	2026-06-26	—
MASS908 Devices Inc.	Sell $149.1K · 16,388 sh	2026-06-25	—
MASS908 Devices Inc.	Sell $370.5K · 40,535 sh	2026-06-24	—
MASS908 Devices Inc.	Sell $31.0K · 3,422 sh	2026-06-23	—
MASS908 Devices Inc.	Sell $214.8K · 34,764 sh	2026-02-02	—
MASS908 Devices Inc.	Exercise — · 66,288 sh	2026-02-01	—
MASS908 Devices Inc.	Exercise — · 17,007 sh	2026-02-01	—
MASS908 Devices Inc.	Exercise — · 13,449 sh	2026-02-01	—
MASS908 Devices Inc.	Exercise — · 11,255 sh	2026-02-01	—

MASSSell

2026-06-26 · 908 Devices Inc.

$25.4K

—

MASSSell

2026-06-25 · 908 Devices Inc.

$149.1K

—

MASSSell

2026-06-24 · 908 Devices Inc.

$370.5K

—

MASSSell

2026-06-23 · 908 Devices Inc.

$31.0K

—

MASSSell

2026-02-02 · 908 Devices Inc.

$214.8K

—

MASSExercise

2026-02-01 · 908 Devices Inc.

66,288

—

MASSExercise

2026-02-01 · 908 Devices Inc.

17,007

—

MASSExercise

2026-02-01 · 908 Devices Inc.

13,449

—

MASSExercise

2026-02-01 · 908 Devices Inc.

11,255

—

Outcomes measure each disclosed buy against the closing price ~6 months (120 trading days) later, with the S&P 500 over the same span for context. Pre-scheduled 10b5-1 plan trades are excluded from the record. Positions are estimated from the latest reported post-transaction holdings, split-adjusted, at the latest close. Built from SEC Form 4 filings and market prices — past outcomes, not predictions or advice.