NASDAQ:MASS | Insider Transactions | 908 Devices Inc.

MASS Insider Transactions

245 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–100; provenance stays internal.

MASS insiders transaction timeline

PurchaseSale
2020-12-22: 12 purchases — HRUSOVSKY E KEVIN, Turner Michael S., Kedar Sharon and 9 more2021-06-16: 2 sales — Griffith Joseph H. IV, Kenneweg John2021-06-23: 6 sales — Basarsky Trent A., BARTHELEMY NICOLAS2021-06-24: 3 sales — Basarsky Trent A., BARTHELEMY NICOLAS2021-06-25: 2 sales — Basarsky Trent A.2021-07-07: 3 sales — Brown Christopher D.2021-07-16: 3 sales — Kenneweg John2021-07-23: 2 sales — Basarsky Trent A.2021-08-04: 3 sales — Brown Christopher D.2021-08-16: 5 sales — Knopp Kevin J., Kenneweg John2021-08-17: 1 sale — Knopp Kevin J.2021-08-18: 1 sale — Knopp Kevin J.2021-08-23: 3 sales — Basarsky Trent A.2021-08-24: 1 sale — Basarsky Trent A.2021-08-25: 1 sale — Basarsky Trent A.2021-08-27: 1 sale — Basarsky Trent A.2021-09-01: 5 sales — Knopp Kevin J., Brown Christopher D.2021-09-08: 4 sales — Griffith Joseph H. IV2021-09-09: 2 sales — Turner Michael S.2021-09-16: 1 sale — Kenneweg John2021-09-23: 4 sales — Basarsky Trent A.2021-10-01: 3 sales — Knopp Kevin J.2021-10-06: 2 sales — Brown Christopher D.2021-10-18: 1 sale — Kenneweg John2021-11-01: 3 sales — Knopp Kevin J.2021-11-03: 2 sales — Brown Christopher D.2021-11-05: 1 sale — Griffith Joseph H. IV2021-11-16: 2 sales — Kenneweg John2021-12-01: 2 sales — Brown Christopher D.2022-01-05: 2 sales — Brown Christopher D.2022-01-10: 1 sale — Kenneweg John2022-01-11: 1 sale — Kenneweg John2022-01-12: 2 sales — Basarsky Trent A.2022-02-14: 1 sale — Basarsky Trent A.2022-02-15: 1 sale — Basarsky Trent A.2022-03-11: 2 sales — Brown Christopher D., Kenneweg John2022-03-14: 2 sales — Basarsky Trent A.2022-03-18: 2 sales — Kenneweg John, Brown Christopher D.2022-04-12: 4 sales — Kenneweg John, Brown Christopher D., Basarsky Trent A.2022-06-13: 1 sale — Griffith Joseph H. IV2022-06-15: 3 sales — Griffith Joseph H. IV, Knopp Kevin J.2022-06-17: 1 sale — Griffith Joseph H. IV2022-06-21: 2 sales — Griffith Joseph H. IV, Knopp Kevin J.2022-06-23: 1 sale — Turner Michael S.2022-06-24: 1 sale — Griffith Joseph H. IV2022-06-27: 1 sale — Griffith Joseph H. IV2022-06-29: 2 sales — Turner Michael S., Brown Christopher D.2022-06-30: 1 sale — Brown Christopher D.2022-07-06: 3 sales — Brown Christopher D., Knopp Kevin J.2022-07-08: 1 sale — Knopp Kevin J.2022-07-15: 2 sales — Knopp Kevin J.2022-07-21: 1 sale — Knopp Kevin J.2022-07-28: 1 sale — Knopp Kevin J.2022-07-29: 1 sale — Knopp Kevin J.2022-08-01: 1 sale — Knopp Kevin J.2022-08-02: 1 sale — Turner Michael S.2022-08-03: 1 sale — Griffith Joseph H. IV2022-08-04: 1 sale — Griffith Joseph H. IV2022-08-05: 1 sale — Knopp Kevin J.2022-08-08: 1 sale — Knopp Kevin J.2022-08-15: 2 sales — Knopp Kevin J.2022-08-17: 1 sale — Turner Michael S.2022-09-12: 1 sale — Brown Christopher D.2022-09-15: 1 sale — Knopp Kevin J.2022-10-17: 1 sale — Knopp Kevin J.2022-10-18: 1 sale — Knopp Kevin J.2022-11-15: 3 sales — Knopp Kevin J.2022-11-22: 1 purchase — Spoto Mark2023-02-01: 5 sales — Turner Michael S., Knopp Kevin J., Griffith Joseph H. IV and 2 more2023-02-02: 4 sales — Turner Michael S., Knopp Kevin J., Griffith Joseph H. IV and 1 more2023-02-15: 1 sale — Knopp Kevin J.2023-02-16: 1 sale — Knopp Kevin J.2023-05-23: 2 sales — Brown Christopher D., Knopp Kevin J.2023-06-07: 1 sale — Brown Christopher D.2023-12-19: 3 sales — Griffith Joseph H. IV, Brown Christopher D.2023-12-20: 1 sale — Brown Christopher D.2023-12-21: 1 sale — Brown Christopher D.2023-12-28: 1 sale — Griffith Joseph H. IV2024-02-01: 8 sales — Griffith Joseph H. IV, Turner Michael S., Knopp Kevin J. and 1 more2024-02-02: 1 sale — Griffith Joseph H. IV2024-05-07: 1 purchase — Knopp Kevin J.2024-05-08: 1 purchase — Knopp Kevin J.2024-05-09: 1 purchase — Knopp Kevin J.2024-05-10: 1 purchase — Knopp Kevin J.2024-05-13: 1 purchase — Knopp Kevin J.2025-02-03: 12 sales — Griffith Joseph H. IV, Turner Michael S., Knopp Kevin J. and 1 more2025-05-14: 3 purchases — Spoto Mark, Knopp Kevin J.2025-05-15: 1 purchase — Knopp Kevin J.2025-06-04: 1 sale — Griffith Joseph H. IV2025-06-16: 1 sale — Turner Michael S.2025-06-17: 1 sale — Turner Michael S.2025-06-18: 1 sale — Turner Michael S.2025-09-19: 1 sale — Griffith Joseph H. IV2025-10-02: 1 sale — Griffith Joseph H. IV2025-10-03: 1 sale — Griffith Joseph H. IV2026-02-02: 2 sales — Knopp Kevin J., Griffith Joseph H. IV2026-03-02: 2 sales — McCallion Kevin J.2026-04-08: 2 sales — McCallion Kevin J., Brown Christopher D.2026-04-09: 2 sales — McCallion Kevin J., Brown Christopher D.2026-04-10: 2 sales — McCallion Kevin J., Brown Christopher D.2026-05-01: 1 sale — Kenneweg John2026-05-06: 3 sales — AWM Investment Company, Inc., Brown Christopher D.2026-05-07: 1 sale — AWM Investment Company, Inc.2026-05-08: 2 sales — Kenneweg John, AWM Investment Company, Inc.2026-05-11: 1 sale — AWM Investment Company, Inc.2026-05-27: 2 sales — AWM Investment Company, Inc.2026-05-28: 3 sales — Brown Christopher D., AWM Investment Company, Inc., Griffith Joseph H. IV2026-06-02: 1 sale — AWM Investment Company, Inc.2026-06-03: 1 sale — Brown Christopher D.2026-06-04: 2 sales — Brown Christopher D., AWM Investment Company, Inc.2026-06-22: 1 sale — AWM Investment Company, Inc.2026-06-23: 3 sales — Brown Christopher D., Knopp Kevin J., AWM Investment Company, Inc.2026-06-24: 1 sale — Knopp Kevin J.2026-06-25: 1 sale — Knopp Kevin J.2026-06-26: 1 sale — Knopp Kevin J.2026-06-30: 1 sale — Brown Christopher D.2026-07-02: 2 sales — Brown Christopher D., Knopp Kevin J.2026-08-04: 1 sale — AWM Investment Company, Inc.2026-08-05: 1 sale — Brown Christopher D.2026-08-10: 2 sales — Brown Christopher D., Knopp Kevin J.2026-08-11: 3 sales — Brown Christopher D., Knopp Kevin J.2026-08-12: 1 sale — Knopp Kevin J.2026-08-13: 1 sale — Knopp Kevin J.2026-08-17: 1 sale — Knopp Kevin J.2026-08-20: 1 sale — AWM Investment Company, Inc.2026-08-21: 1 sale — AWM Investment Company, Inc.2026-08-25: 1 sale — Griffith Joseph H. IV2020-12-222026-08-25
Insider profileRoleDateTransactionSharesPrice
Griffith Joseph H. IVChief Financial Officer2026-08-25Sale11,459$10.95
AWM Investment Company, Inc.Ten Percent Owner2026-08-21Sale41,578$10.6104
AWM Investment Company, Inc.Ten Percent Owner2026-08-20Sale8,422$10.5246
Knopp Kevin J.President and CEO2026-08-17Sale20,000$10.35
Knopp Kevin J.President and CEO2026-08-13Sale7,622$10.06
Knopp Kevin J.President and CEO2026-08-12Sale2,747$10.07
Brown Christopher D.Director2026-08-11Sale8,358$9.23
Knopp Kevin J.President and CEO2026-08-11Sale30,170$10.16
Knopp Kevin J.President and CEO2026-08-11Sale115,748$9.83
Brown Christopher D.Director2026-08-10Sale9,442$9.03
Knopp Kevin J.President and CEO2026-08-10Sale348$9.06
Brown Christopher D.Director2026-08-05Sale20,000$8.49
AWM Investment Company, Inc.Ten Percent Owner2026-08-04Sale50,000$8.3553
Brown Christopher D.Director2026-07-02Sale2,200$9.02
Knopp Kevin J.President and CEO2026-07-02Sale222$9.07
Brown Christopher D.Director2026-06-30Sale20,000$8.84
Knopp Kevin J.President and CEO2026-06-26Sale2,798.0$9.09
Knopp Kevin J.President and CEO2026-06-25Sale16,388.0$9.1
Knopp Kevin J.President and CEO2026-06-24Sale40,535.0$9.14
Brown Christopher D.Director2026-06-23Sale9,900.0$9.04
Knopp Kevin J.President and CEO2026-06-23Sale3,422.0$9.06
AWM Investment Company, Inc.TenPercentOwner2026-06-23Sale3,050.0$9.0
AWM Investment Company, Inc.TenPercentOwner2026-06-22Sale4,668.0$8.99
Brown Christopher D.Director2026-06-04Sale100.0$9.0
AWM Investment Company, Inc.TenPercentOwner2026-06-04Sale39,782.0$8.97
Brown Christopher D.Director2026-06-03Sale20,000.0$8.73
AWM Investment Company, Inc.TenPercentOwner2026-06-02Sale2,500.0$8.95
Brown Christopher D.Director2026-05-28Sale30,000.0$9.0
AWM Investment Company, Inc.TenPercentOwner2026-05-28Sale170,442.0$8.66
Griffith Joseph H. IVChief Financial Officer2026-05-28Sale6,940.0$9.03
AWM Investment Company, Inc.TenPercentOwner2026-05-27Sale15,000.0$8.25
AWM Investment Company, Inc.TenPercentOwner2026-05-27Sale1,500.0$8.25
AWM Investment Company, Inc.TenPercentOwner2026-05-11Sale5,000.0$8.25
Kenneweg JohnSVP, Sales & Product Marketing2026-05-08Sale18,255.0$8.11
AWM Investment Company, Inc.TenPercentOwner2026-05-08Sale3,025.0$8.2
AWM Investment Company, Inc.TenPercentOwner2026-05-07Sale12,819.0$8.2
AWM Investment Company, Inc.TenPercentOwner2026-05-06Sale57,365.0$8.06
AWM Investment Company, Inc.TenPercentOwner2026-05-06Sale5,000.0$8.0
Brown Christopher D.Director2026-05-06Sale20,000.0$7.23
Kenneweg JohnSVP, Sales & Product Marketing2026-05-01Sale7,787.0$6.83
McCallion Kevin J.SVP, Products and Production2026-04-10Sale2,693.0$7.01
Brown Christopher D.Director2026-04-10Sale17,578.0$7.07
McCallion Kevin J.SVP, Products and Production2026-04-09Sale5,420.0$7.03
Brown Christopher D.Director2026-04-09Sale7,392.0$7.04
McCallion Kevin J.SVP, Products and Production2026-04-08Sale18,580.0$7.05
Brown Christopher D.Director2026-04-08Sale15,030.0$7.05
McCallion Kevin J.SVP, Products and Production2026-03-02Sale7.0$7.0
McCallion Kevin J.SVP, Products and Production2026-03-02Sale7.0$7.0
Knopp Kevin J.President and CEO2026-02-02Sale34,764.0$6.18
Griffith Joseph H. IVChief Financial Officer2026-02-02Sale23,175.0$6.18
Griffith Joseph H. IVChief Financial Officer2025-10-03Sale4,292.0$9.05
Griffith Joseph H. IVChief Financial Officer2025-10-02Sale708.0$9.04
Griffith Joseph H. IVChief Financial Officer2025-09-19Sale5,000.0$7.07
Turner Michael S.Chief Legal & Admin Officer2025-06-18Sale1,373.0$7.5
Turner Michael S.Chief Legal & Admin Officer2025-06-17Sale7,148.0$7.51
Turner Michael S.Chief Legal & Admin Officer2025-06-16Sale16,082.0$7.51
Griffith Joseph H. IVChief Financial Officer2025-06-04Sale6,940.0$7.08
Knopp Kevin J.President and CEO2025-05-15Purchase15,000.0$4.44
Spoto MarkDirector2025-05-14Purchase3,000.0$4.25
Spoto MarkDirector2025-05-14Purchase7,000.0$4.3
Knopp Kevin J.President and CEO2025-05-14Purchase15,000.0$4.32
Griffith Joseph H. IVChief Financial Officer2025-02-03Sale4,321.0$2.35
Griffith Joseph H. IVChief Financial Officer2025-02-03Sale3,955.0$2.34
Griffith Joseph H. IVChief Financial Officer2025-02-03Sale1,960.0$2.34
Turner Michael S.Chief Legal & Admin Officer2025-02-03Sale4,162.0$2.32
Turner Michael S.Chief Legal & Admin Officer2025-02-03Sale3,807.0$2.32
Turner Michael S.Chief Legal & Admin Officer2025-02-03Sale1,703.0$2.36
Knopp Kevin J.President and CEO2025-02-03Sale6,524.0$2.32
Knopp Kevin J.President and CEO2025-02-03Sale5,159.0$2.31
Knopp Kevin J.President and CEO2025-02-03Sale4,318.0$2.33
Brown Christopher D.Chief Product Officer2025-02-03Sale3,641.0$2.33
Brown Christopher D.Chief Product Officer2025-02-03Sale2,459.0$2.34
Brown Christopher D.Chief Product Officer2025-02-03Sale1,667.0$2.36
Knopp Kevin J.President and CEO2024-05-13Purchase10,000.0$6.42
Knopp Kevin J.President and CEO2024-05-10Purchase10,000.0$5.77
Knopp Kevin J.President and CEO2024-05-09Purchase10,000.0$5.83
Knopp Kevin J.President and CEO2024-05-08Purchase10,000.0$5.72
Knopp Kevin J.President and CEO2024-05-07Purchase10,000.0$5.6
Griffith Joseph H. IVChief Financial Officer2024-02-02Sale9,711.0$7.09
Griffith Joseph H. IVChief Financial Officer2024-02-01Sale3,810.0$7.0
Griffith Joseph H. IVChief Financial Officer2024-02-01Sale1,888.0$7.0
Turner Michael S.Chief Legal & Admin Officer2024-02-01Sale3,616.0$6.97
Turner Michael S.Chief Legal & Admin Officer2024-02-01Sale1,616.0$7.03
Knopp Kevin J.President and CEO2024-02-01Sale4,972.0$7.02
Knopp Kevin J.President and CEO2024-02-01Sale4,099.0$6.97
Brown Christopher D.Chief Product Officer2024-02-01Sale2,358.0$7.02
Brown Christopher D.Chief Product Officer2024-02-01Sale1,599.0$6.99
Griffith Joseph H. IVChief Financial Officer2023-12-28Sale6,000.0$12.08
Brown Christopher D.Chief Product Officer2023-12-21Sale7,370.0$9.12
Brown Christopher D.Chief Product Officer2023-12-20Sale5,235.0$9.1
Griffith Joseph H. IVChief Financial Officer2023-12-19Sale5,580.0$9.08
Brown Christopher D.Chief Product Officer2023-12-19Sale1,305.0$9.08
Brown Christopher D.Chief Product Officer2023-12-19Sale6,090.0$9.08
Brown Christopher D.Chief Product Officer2023-06-07Sale4,470.0$10.03
Brown Christopher D.Chief Technology Officer2023-05-23Sale10,000.0$10.02
Knopp Kevin J.President and CEO2023-05-23Sale60,000.0$10.12
Knopp Kevin J.President and CEO2023-02-16Sale4,842.0$10.12
Knopp Kevin J.President and CEO2023-02-15Sale15,158.0$10.29
Turner Michael S.VP, General Counsel2023-02-02Sale2,848.0$10.02
Knopp Kevin J.President and CEO2023-02-02Sale40,000.0$10.51