MCCALLION KEVIN J.

PrivateCIK: 2115341
Location

BURLINGTON, MA

MCCALLION KEVIN J. (SVP, Products and Production) sold 34.8% of their position (24K shares) of 908 DEVICES INC. on the open market

Open‑market sale worth $169.1K — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales
InsiderMCCALLION KEVIN J.CIK 2115341
Issuer908 DEVICES INC.CIK 1555279
Officer· SVP, Products and Production
Since Feb 2026
-24K
Net shares
Net seller
$169.1K
Total sold
2
Open market trades
0B · 2S
6
Total transactions
24K acquired · 48K disposed
Non-Derivative Transactions4

Common Stock

Direct
M · Option Exercise

Shares

+18.58K

Price / share

$1.05

Trade value

$19.51K

% of position

41.4%
4/8/2026
44.92K63.51K

Common Stock

Direct
S · Sale

Shares

18.58K

Price / share

$7.05

Trade value

$130.99K

% of position

29.3%
4/8/2026
63.51K44.92K

Common Stock

Direct
M · Option Exercise

Shares

+5.42K

Price / share

$1.05

Trade value

$5.69K

% of position

12.1%
4/9/2026
44.92K50.34K

Common Stock

Direct
S · Sale

Shares

5.42K

Price / share

$7.03

Trade value

$38.10K

% of position

10.8%
4/9/2026
50.34K44.92K
Total

Net shares

+0.00

Net value

-$143.89K

Derivative Transactions2

Stock Option (right to buy)

Direct
M · Option Exercise
Converts to

Common Stock

18.58K shares

Shares

18.58K

Strike price

1.05

Held after

8.11K

Exercisable

4/8/2026

Stock Option (right to buy)

Direct
M · Option Exercise
Converts to

Common Stock

5.42K shares

Shares

5.42K

Strike price

1.05

Held after

2.69K

Exercisable

4/9/2026
MCCALLION KEVIN J. — Insider Transaction (Form 4) Filed Apr 10, 2026 | Finecho