Michael S. Turner - 16 Jun 2025 Form 4 Insider Report for 908 Devices Inc. (MASS)

Reporting relationship: Chief Legal & Admin Officer
Issuer ticker: MASS
Reported as of: 16 Jun 2025
Net transaction value: -$184,789
SEC form: 4
Accepted by SEC: 18 Jun 2025, 16:35:24 UTC
Prior SEC filing: 05 Mar 2025
Next SEC filing: 06 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Michael S. Turner

Key filing fact

Michael S. Turner filed Form 4 for 908 Devices Inc. (MASS) on 18 Jun 2025.

Key facts

This page summarizes Michael S. Turner's Form 4 filing for 908 Devices Inc. (MASS).
3 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 18 Jun 2025, 16:35.

Change

Previous filing in this sequence was filed on 05 Mar 2025.
Current net transaction value: -$184,789.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001836524 Primary reporting owner

Turner Michael S.

Relationship: Chief Legal & Admin Officer
Address: C/O 908 DEVICES INC., 645 SUMMER STREET, BOSTON
Signature: /s/ Michael S. Turner
Signature date: 18 Jun 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MASS transaction

Common Stock

Sale

Transaction value: $120,839
Shares: -16,082
Change %: -65%
Price: $7.51
Shares after: 8,521
Date: 16 Jun 2025
Ownership: Direct
Footnotes: F1, F2

MASS transaction

Common Stock

Sale

Transaction value: $53,653
Shares: -7,148
Change %: -84%
Price: $7.51
Shares after: 1,373
Date: 17 Jun 2025
Ownership: Direct
Footnotes: F1, F3

MASS transaction

Common Stock

Sale

Transaction value: $10,298
Shares: -1,373
Change %: -100%
Price: $7.50
Shares after: 0
Date: 18 Jun 2025
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Represents sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

Footnote F2

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.50 to $7.60, inclusive. The reporting person undertakes to provide to 908 Devices Inc., any security holder of 908 Devices Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Footnote F3

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.50 to $7.54, inclusive. The reporting person undertakes to provide to 908 Devices Inc., any security holder of 908 Devices Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.