908 Devices Inc.

MASS

Form 4/A • Statement of Changes in Beneficial Ownership

SEC Accession Number: 0002115341-26-000008
Filing date: Mar 5, 2026
Earliest execution date: Mar 2, 2026

Summary

Type

Sell

Net shares

-7

% of shares

-0.02%

Amount (USD)

$49

Insider confidence score

57.5 out of 100

Positive

  • Under Rule 10b5-1 trading plan
  • Very small scheduled sell (<0.05% of shares)
  • Minimal sell amount (<$10K)

Stock transactions

Transaction 1

Security

Common Stock

Action

Exercise

Date

2026-03-02

Code

M

Net shares

+7.0

Price per Share

$1.05

Amount (USD)

$7.35

Acquired/Disposed

Acquired

Shares Owned Before

44,925.0

Shares Owned After

44,932.0

Transaction 2

Security

Common Stock

Action

Sell

Date

2026-03-02

Code

S

Net shares

-7.0

Price per Share

$7.00

Amount (USD)

$49.00

Acquired/Disposed

Disposed

Shares Owned Before

44,932.0

Shares Owned After

44,925.0

Derivative Transactions

Transaction 1

Security

Stock Option (right to buy)

Action

Exercise

Date

2026-03-02

Code

M

Net shares

-7.0

Acquired/Disposed

Disposed

Shares Owned Before

26,693.0

Shares Owned After

26,686.0

Filing's footnotes

1. This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 9, 2025.

2. The shares underlying the option are fully vested and immediately exercisable.

⚠️ This is a correction filing

ℹ️ Filed under Rule 10b5-1 trading plan

This page is for informational purposes only. While we strive for accuracy, the summary may contain inaccuracies or omissions. Please refer to the official SEC filing for authoritative information. Open the SEC filing.