Disclosed positions

Estimated from their latest filings — positions may have changed since

$6.82M

combined est. value

Stock	Shares	Price	Value	Weight	As of
MASS908 Devices Inc.	865,559	$7.88	$6.82M	100%	2026-06-23

MASS

908 Devices Inc.

$6.82M

865,559 sh

All filings on record

Every Form 4 transaction we track for this filer

all 7buys 0sells 4

Stock	Transaction	Date	~6mo later
MASS908 Devices Inc.	Sell $89.5K · 9,900 sh	2026-06-23	—
MASS908 Devices Inc.	Sell $900.00 · 100 sh	2026-06-04	—
MASS908 Devices Inc.	Sell $174.6K · 20,000 sh	2026-06-03	—
MASS908 Devices Inc.	Sell $270.0K · 30,000 sh	2026-05-28	—
MASS908 Devices Inc.	Exercise — · 10,992 sh	2026-02-01	—
MASS908 Devices Inc.	Exercise — · 7,418 sh	2026-02-01	—
MASS908 Devices Inc.	Exercise — · 5,027 sh	2026-02-01	—

MASSSell

2026-06-23 · 908 Devices Inc.

$89.5K

—

MASSSell

2026-06-04 · 908 Devices Inc.

$900.00

—

MASSSell

2026-06-03 · 908 Devices Inc.

$174.6K

—

MASSSell

2026-05-28 · 908 Devices Inc.

$270.0K

—

MASSExercise

2026-02-01 · 908 Devices Inc.

10,992

—

MASSExercise

2026-02-01 · 908 Devices Inc.

7,418

—

MASSExercise

2026-02-01 · 908 Devices Inc.

5,027

—

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.