# 908 Devices Inc. (MASS) insider trading, Q3 2026

Canonical: https://sec-api.dev/insider-trading/mass

> 26 non-derivative transactions: 0 purchases, 22 sales ($4.2M). CIK 1555279.

| Date | Insider | Relationship | Code | Shares | Price | Owned after | Filing |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 2026-09-24 | AWM Investment Company, Inc. | TenPercentOwner | S | 24000.0 | 11.36 | 4754773.0 | https://www.sec.gov/Archives/edgar/data/1555279/000153526426000053/0001535264-26-000053-index.htm |
| 2026-09-23 | AWM Investment Company, Inc. | TenPercentOwner | S | 1000.0 | 11.25 | 4755773.0 | https://www.sec.gov/Archives/edgar/data/1555279/000153526426000053/0001535264-26-000053-index.htm |
| 2026-09-17 | Kenneweg John | Officer | M | 5257.0 | 0.96 | 63041.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183687626000011/0001836876-26-000011-index.htm |
| 2026-09-17 | Kenneweg John | Officer | S | 5257.0 | 10.22 | 57784.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183687626000011/0001836876-26-000011-index.htm |
| 2026-09-16 | Kenneweg John | Officer | M | 21399.0 | 0.96 | 79183.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183687626000011/0001836876-26-000011-index.htm |
| 2026-09-16 | Kenneweg John | Officer | S | 21399.0 | 10.11 | 57784.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183687626000011/0001836876-26-000011-index.htm |
| 2026-09-15 | Kenneweg John | Officer | M | 1000.0 | 0.96 | 58784.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183687626000011/0001836876-26-000011-index.htm |
| 2026-09-15 | Kenneweg John | Officer | S | 1000.0 | 10.0 | 57784.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183687626000011/0001836876-26-000011-index.htm |
| 2026-09-02 | Brown Christopher D. | Director | S | 30000.0 | 10.58 | 775559.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183698826000025/0001836988-26-000025-index.htm |
| 2026-08-25 | Griffith Joseph H. IV | Officer | S | 11459.0 | 10.95 | 121497.0 | https://www.sec.gov/Archives/edgar/data/1555279/000143153126000007/0001431531-26-000007-index.htm |
| 2026-08-21 | AWM Investment Company, Inc. | TenPercentOwner | S | 41578.0 | 10.61 | 4779773.0 | https://www.sec.gov/Archives/edgar/data/1555279/000153526426000052/0001535264-26-000052-index.htm |
| 2026-08-20 | AWM Investment Company, Inc. | TenPercentOwner | S | 8422.0 | 10.52 | 4821351.0 | https://www.sec.gov/Archives/edgar/data/1555279/000153526426000052/0001535264-26-000052-index.htm |
| 2026-08-17 | Knopp Kevin J. | Director, Officer | S | 20000.0 | 10.35 | 555968.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183652326000013/0001836523-26-000013-index.htm |
| 2026-08-13 | Knopp Kevin J. | Director, Officer | S | 7622.0 | 10.06 | 575968.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183652326000013/0001836523-26-000013-index.htm |
| 2026-08-12 | Knopp Kevin J. | Director, Officer | S | 2747.0 | 10.07 | 583590.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183652326000011/0001836523-26-000011-index.htm |
| 2026-08-11 | Knopp Kevin J. | Director, Officer | S | 30170.0 | 10.16 | 586337.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183652326000011/0001836523-26-000011-index.htm |
| 2026-08-11 | Knopp Kevin J. | Director, Officer | S | 115748.0 | 9.83 | 616507.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183652326000011/0001836523-26-000011-index.htm |
| 2026-08-11 | Brown Christopher D. | Director | S | 8358.0 | 9.23 | 805559.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183698826000023/0001836988-26-000023-index.htm |
| 2026-08-10 | Knopp Kevin J. | Director, Officer | S | 348.0 | 9.06 | 732255.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183652326000011/0001836523-26-000011-index.htm |
| 2026-08-10 | Brown Christopher D. | Director | S | 9442.0 | 9.03 | 813917.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183698826000023/0001836988-26-000023-index.htm |
| 2026-08-05 | Brown Christopher D. | Director | S | 20000.0 | 8.49 | 823359.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183698826000021/0001836988-26-000021-index.htm |
| 2026-08-04 | AWM Investment Company, Inc. | TenPercentOwner | S | 50000.0 | 8.36 | 4829773.0 | https://www.sec.gov/Archives/edgar/data/1555279/000153526426000041/0001535264-26-000041-index.htm |
| 2026-08-01 | Vann Brandi C | Director | M | 5192.0 |  | 5192.0 | https://www.sec.gov/Archives/edgar/data/1555279/000208194526000005/0002081945-26-000005-index.htm |
| 2026-07-02 | Knopp Kevin J. | Director, Officer | S | 222.0 | 9.07 | 732603.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183652326000009/0001836523-26-000009-index.htm |
| 2026-07-02 | Brown Christopher D. | Director | S | 2200.0 | 9.02 | 843359.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183698826000019/0001836988-26-000019-index.htm |
| 2026-06-30 | Brown Christopher D. | Director | S | 20000.0 | 8.84 | 845559.0 | https://www.sec.gov/Archives/edgar/data/1555279/000183698826000017/0001836988-26-000017-index.htm |

Source: https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets

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