Filings under MASS by MassRoots, Inc. (CIK 0001589149) from Oct 28, 2014 to Mar 11, 2015 belong to a different issuer and are not shown.
The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 2, 2026 | Brown Christopher D. | Director | Sell(S) | 30K | $10.58 | $317K |
| Aug 25, 2026 | Griffith Joseph H. IV | Chief Financial Officer | Sell(S) | 11K | $10.95 | $125K |
| Aug 21, 2026 | AWM Investment Company, Inc. | 10% Owner | Sell(S) | 42K | $10.61 | $441K |
| Aug 20, 2026 | AWM Investment Company, Inc. | 10% Owner | Sell(S) | 8K | $10.52 | $89K |
| Aug 17, 2026 | Knopp Kevin J. | President and CEO, Director | Sell(S) | 20K | $10.35 | $207K |
| Aug 13, 2026 | Knopp Kevin J. | President and CEO, Director | Sell(S) | 8K | $10.06 | $77K |
| Aug 12, 2026 | Knopp Kevin J. | President and CEO, Director | Sell(S) | 3K | $10.07 | $28K |
| Aug 11, 2026 | Knopp Kevin J. | President and CEO, Director | Sell(S) | 30K | $10.16 | $307K |
| Aug 11, 2026 | Knopp Kevin J. | President and CEO, Director | Sell(S) | 116K | $9.83 | $1.1M |
| Aug 11, 2026 | Brown Christopher D. | Director | Sell(S) | 8K | $9.23 | $77K |
| Aug 10, 2026 | Knopp Kevin J. | President and CEO, Director | Sell(S) | 348 | $9.06 | $3K |
| Aug 10, 2026 | Brown Christopher D. | Director | Sell(S) | 9K | $9.03 | $85K |
| Aug 5, 2026 | Brown Christopher D. | Director | Sell(S) | 20K | $8.49 | $170K |
| Aug 4, 2026 | AWM Investment Company, Inc. | 10% Owner | Sell(S) | 50K | $8.36 | $418K |
| Aug 1, 2026 | Vann Brandi C | Director | Option exercise(M) | 5K | — | $0 |
| Aug 1, 2026 | Vann Brandi C | Director | Option exercise(M) | 5K | — | — |
| Jul 2, 2026 | Knopp Kevin J. | President and CEO, Director | Sell(S) | 222 | $9.07 | $2K |
| Jul 2, 2026 | Brown Christopher D. | Director | Sell(S) | 2K | $9.02 | $20K |
| Jun 30, 2026 | Brown Christopher D. | Director | Sell(S) | 20K | $8.84 | $177K |
| Jun 26, 2026 | Knopp Kevin J. | President and CEO, Director | Sell(S) | 3K | $9.09 | $25K |
| Jun 25, 2026 | Knopp Kevin J. | President and CEO, Director | Sell(S) | 16K | $9.10 | $149K |
| Jun 25, 2026 | Leonhart Michele M. | Director | Option exercise(M) | 6K | — | — |
| Jun 25, 2026 | Leonhart Michele M. | Director | Option exercise(M) | 6K | — | $0 |
| Jun 24, 2026 | Knopp Kevin J. | President and CEO, Director | Sell(S) | 41K | $9.14 | $370K |
| Jun 23, 2026 | Knopp Kevin J. | President and CEO, Director | Sell(S) | 3K | $9.06 | $31K |
| Jun 23, 2026 | AWM Investment Company, Inc. | 10% Owner | Sell(S) | 3K | $9.00 | $27K |
| Jun 23, 2026 | Brown Christopher D. | Director | Sell(S) | 10K | $9.04 | $89K |
| Jun 22, 2026 | AWM Investment Company, Inc. | 10% Owner | Sell(S) | 5K | $8.99 | $42K |
| Jun 11, 2026 | Hunt Anthony | Director | Grant(A) | 14K | — | $0 |
| Jun 11, 2026 | Hunt Anthony | Director | Grant(A) | 6K | — | $0 |
| Jun 11, 2026 | Crandell Keith | Director | Grant(A) | 14K | — | $0 |
| Jun 11, 2026 | Crandell Keith | Director | Grant(A) | 6K | — | $0 |
| Jun 11, 2026 | Eloi Fenel M | Director | Grant(A) | 14K | — | $0 |
| Jun 11, 2026 | Eloi Fenel M | Director | Grant(A) | 6K | — | $0 |
| Jun 11, 2026 | Spoto Mark | Director | Grant(A) | 14K | — | $0 |
| Jun 11, 2026 | Spoto Mark | Director | Grant(A) | 6K | — | $0 |
| Jun 11, 2026 | Vann Brandi C | Director | Grant(A) | 14K | — | $0 |
| Jun 11, 2026 | Vann Brandi C | Director | Grant(A) | 6K | — | $0 |
| Jun 11, 2026 | Hrusovsky E Kevin | Director | Grant(A) | 14K | — | $0 |
| Jun 11, 2026 | Hrusovsky E Kevin | Director | Grant(A) | 6K | — | $0 |
| Jun 11, 2026 | Leonhart Michele M. | Director | Grant(A) | 14K | — | $0 |
| Jun 11, 2026 | Leonhart Michele M. | Director | Grant(A) | 6K | — | $0 |
| Jun 10, 2026 | Hunt Anthony | Director | Option exercise(M) | 14K | — | — |
| Jun 10, 2026 | Hunt Anthony | Director | Option exercise(M) | 14K | — | $0 |
| Jun 10, 2026 | Crandell Keith | Director | Option exercise(M) | 14K | — | — |
| Jun 10, 2026 | Crandell Keith | Director | Option exercise(M) | 14K | — | $0 |
| Jun 10, 2026 | Eloi Fenel M | Director | Option exercise(M) | 14K | — | — |
| Jun 10, 2026 | Eloi Fenel M | Director | Option exercise(M) | 14K | — | $0 |
| Jun 10, 2026 | Spoto Mark | Director | Option exercise(M) | 14K | — | — |
| Jun 10, 2026 | Spoto Mark | Director | Option exercise(M) | 14K | — | $0 |
| Jun 10, 2026 | Hrusovsky E Kevin | Director | Option exercise(M) | 14K | — | — |
| Jun 10, 2026 | Hrusovsky E Kevin | Director | Option exercise(M) | 14K | — | $0 |
| Jun 10, 2026 | Leonhart Michele M. | Director | Option exercise(M) | 14K | — | — |
| Jun 10, 2026 | Leonhart Michele M. | Director | Option exercise(M) | 14K | — | $0 |
| Jun 4, 2026 | AWM Investment Company, Inc. | 10% Owner | Sell(S) | 40K | $8.97 | $357K |
| Jun 4, 2026 | Brown Christopher D. | Director | Sell(S) | 100 | $9.00 | $900 |
| Jun 3, 2026 | Brown Christopher D. | Director | Sell(S) | 20K | $8.73 | $175K |
| Jun 2, 2026 | AWM Investment Company, Inc. | 10% Owner | Sell(S) | 3K | $8.95 | $22K |
| May 28, 2026 | Brown Christopher D. | Director | Sell(S) | 30K | $9.00 | $270K |
| May 28, 2026 | AWM Investment Company, Inc. | 10% Owner | Sell(S) | 170K | $8.66 | $1.5M |
| May 28, 2026 | Griffith Joseph H. IV | Chief Financial Officer | Sell(S) | 7K | $9.03 | $63K |
| May 27, 2026 | AWM Investment Company, Inc. | 10% Owner | Sell(S) | 15K | $8.25 | $124K |
| May 27, 2026 | AWM Investment Company, Inc. | 10% Owner | Sell(S) | 2K | $8.25 | $12K |
| May 11, 2026 | AWM Investment Company, Inc. | 10% Owner | Sell(S) | 5K | $8.25 | $41K |
| May 8, 2026 | Kenneweg John | SVP, Sales & Product Marketing | Sell(S) | 18K | $8.11 | $148K |
| May 8, 2026 | AWM Investment Company, Inc. | 10% Owner | Sell(S) | 3K | $8.20 | $25K |
| May 7, 2026 | AWM Investment Company, Inc. | 10% Owner | Sell(S) | 13K | $8.20 | $105K |
| May 6, 2026 | Brown Christopher D. | Director | Sell(S) | 20K | $7.23 | $145K |
| May 6, 2026 | AWM Investment Company, Inc. | 10% Owner | Sell(S) | 5K | $8.00 | $40K |
| May 6, 2026 | AWM Investment Company, Inc. | 10% Owner | Sell(S) | 57K | $8.06 | $462K |
| May 1, 2026 | Kenneweg John | SVP, Sales & Product Marketing | Option exercise(M) | 26K | — | — |
| May 1, 2026 | Kenneweg John | SVP, Sales & Product Marketing | Sell(S) | 8K | $6.83 | $53K |
| May 1, 2026 | Kenneweg John | SVP, Sales & Product Marketing | Option exercise(M) | 26K | — | $0 |
| Apr 28, 2026 | Kenneweg John | SVP, Sales & Product Marketing | Grant(A) | 26K | — | $0 |
| Apr 21, 2026 | Otitoju Kolawole A. | Chief Bus. & Strategy Officer | Grant(A) | 147K | — | $0 |
| Apr 21, 2026 | Otitoju Kolawole A. | Chief Bus. & Strategy Officer | Grant(A) | 110K | — | $0 |
| Apr 10, 2026 | Brown Christopher D. | Director | Sell(S) | 18K | $7.07 | $124K |
| Apr 10, 2026 | McCallion Kevin J. | SVP, Products and Production | Option exercise(M) | 3K | $1.05 | $3K |
| Apr 10, 2026 | McCallion Kevin J. | SVP, Products and Production | Sell(S) | 3K | $7.01 | $19K |
| Apr 10, 2026 | McCallion Kevin J. | SVP, Products and Production | Option exercise(M) | 3K | — | $0 |
| Apr 9, 2026 | Brown Christopher D. | Director | Sell(S) | 7K | $7.04 | $52K |
| Apr 9, 2026 | McCallion Kevin J. | SVP, Products and Production | Option exercise(M) | 5K | $1.05 | $6K |
| Apr 9, 2026 | McCallion Kevin J. | SVP, Products and Production | Sell(S) | 5K | $7.03 | $38K |
| Apr 9, 2026 | McCallion Kevin J. | SVP, Products and Production | Option exercise(M) | 5K | — | $0 |
| Apr 8, 2026 | Brown Christopher D. | Director | Sell(S) | 15K | $7.05 | $106K |
| Apr 8, 2026 | McCallion Kevin J. | SVP, Products and Production | Option exercise(M) | 19K | $1.05 | $20K |
| Apr 8, 2026 | McCallion Kevin J. | SVP, Products and Production | Sell(S) | 19K | $7.05 | $131K |
| Apr 8, 2026 | McCallion Kevin J. | SVP, Products and Production | Option exercise(M) | 19K | — | $0 |
| Mar 2, 2026 | McCallion Kevin J. | SVP, Products and Production | Option exercise(M) | 7 | $1.05 | $7 |
| Mar 2, 2026 | McCallion Kevin J. | SVP, Products and Production | Sell(S) | 7 | $7.00 | $49 |
| Mar 2, 2026 | McCallion Kevin J. | SVP, Products and Production | Option exercise(M) | 7 | — | $0 |
| Feb 2, 2026 | Griffith Joseph H. IV | Chief Financial Officer | Sell(S) | 23K | $6.18 | $143K |
| Feb 2, 2026 | Griffith Joseph H. IV | Chief Financial Officer | Grant(A) | 121K | — | $0 |
| Feb 2, 2026 | Griffith Joseph H. IV | Chief Financial Officer | Grant(A) | 53K | — | $0 |
| Feb 2, 2026 | Knopp Kevin J. | President and CEO, Director | Sell(S) | 35K | $6.18 | $215K |
| Feb 2, 2026 | Knopp Kevin J. | President and CEO, Director | Grant(A) | 90K | — | $0 |
| Feb 2, 2026 | Knopp Kevin J. | President and CEO, Director | Grant(A) | 206K | — | $0 |
| Feb 1, 2026 | Griffith Joseph H. IV | Chief Financial Officer | Option exercise(M) | 5K | — | — |
| Feb 1, 2026 | Griffith Joseph H. IV | Chief Financial Officer | Option exercise(M) | 10K | — | — |
| Feb 1, 2026 | Griffith Joseph H. IV | Chief Financial Officer | Option exercise(M) | 11K | — | — |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Issuer: 908 Devices Inc., SEC CIK 0001555279. The symbol on a Form 4 is typed by the filer, so this page follows the issuer with the newest filing under MASS and shows every filing by that issuer. Earlier filings under the same symbol by another issuer are left out.
Coverage: Form 4 filings indexed 2006-01-02 → 2026-09-05. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
Connected pages for MASS