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Home/Companies/908 Devices Inc.

908 Devices Inc.

135 insider trades tracked

MASS
Insider trades
135
Bought (open market)
$0
Sold (open market)
$10.1M
Unique insiders
15

12-month activity

Monthly insider buy vs sell totals for 908 Devices Inc..

BuysSellsFilings with no price (gifts, grants)
Show data table
MonthBuysSellsFilings
November 2025$0$00
December 2025$0$01
January 2026$0$00
February 2026$0$358K17
March 2026$0$491
April 2026$0$470K12
May 2026$0$3M14
June 2026$0$1.5M33
July 2026$0$22K2
August 2026$0$3.2M14
September 2026$0$1.1M10
October 2026$0$422K3

Recent insider trades

Most recent Form 4 filings for 908 Devices Inc..

  • Brown Christopher D.exercised60,000 shares ofMASSat $1.75$105KOct 7 · filed Oct 9Details
  • Brown Christopher D.sold30,000 shares ofMASSat $11.89$357KOct 7 · filed Oct 9Details
  • Griffith Joseph H. IVsold5,000 shares ofMASSat $13.03$65KOct 6

Insiders at this company

Executives and directors who have filed Form 4s.

  • Knopp Kevin J.26 trades
  • Brown Christopher D.25 trades
  • AWM Investment Company, Inc.18 trades
  • Griffith Joseph H. IV13 trades
  • Kenneweg John10 trades
  • Turner Michael S.8 trades
  • McCallion Kevin J.7 trades
  • Vann Brandi C5 trades

Explore insider screeners

Latest CEO & CFO PurchasesLatest CEO & CFO SalesDirector PurchasesOfficer PurchasesTop Purchases This WeekTop Sales This WeekTop Officer Buys (Month)10% Owner Filings10b5-1 Planned TradesDiscretionary TradesBuy/Sell RatiosPolitician-Insider Overlap
· filed Oct 8
Details
  • AWM Investment Company, Inc.sold18,000 shares ofMASSat $11.518$207KSep 29 · filed Oct 1Details
  • AWM Investment Company, Inc.sold24,000 shares ofMASSat $11.359$273KSep 24 · filed Sep 25Details
  • AWM Investment Company, Inc.sold1,000 shares ofMASSat $11.25$11KSep 23 · filed Sep 25Details
  • Kenneweg Johnsold5,257 shares ofMASSat $10.22$54KSep 17Details
  • Kenneweg Johnexercised5,257 shares ofMASSat $0.96$5KSep 17Details
  • Kenneweg Johnsold21,399 shares ofMASSat $10.11$216KSep 16 · filed Sep 17Details
  • Kenneweg Johnexercised21,399 shares ofMASSat $0.96$21KSep 16 · filed Sep 17Details
  • Kenneweg Johnsold1,000 shares ofMASSat $10$10KSep 15 · filed Sep 17Details
  • Kenneweg Johnexercised1,000 shares ofMASSat $0.96$960Sep 15 · filed Sep 17Details
  • Brown Christopher D.sold30,000 shares ofMASSat $10.58$317KSep 2 · filed Sep 4Details
  • Griffith Joseph H. IVsold11,459 shares ofMASSat $10.95$125KAug 25 · filed Aug 27Details
  • AWM Investment Company, Inc.sold41,578 shares ofMASSat $10.61$441KAug 21 · filed Aug 24Details
  • AWM Investment Company, Inc.sold8,422 shares ofMASSat $10.525$89KAug 20 · filed Aug 24Details
  • Knopp Kevin J.sold20,000 shares ofMASSat $10.35$207KAug 17Details
  • Knopp Kevin J.sold7,622 shares ofMASSat $10.06$77KAug 13 · filed Aug 17Details
  • Knopp Kevin J.sold2,747 shares ofMASSat $10.07$28KAug 12Details
  • Knopp Kevin J.sold30,170 shares ofMASSat $10.16$307KAug 11 · filed Aug 12Details
  • Knopp Kevin J.sold115,748 shares ofMASSat $9.83$1.1MAug 11 · filed Aug 12Details
  • Brown Christopher D.sold8,358 shares ofMASSat $9.23$77KAug 11 · filed Aug 12Details
  • Knopp Kevin J.sold348 shares ofMASSat $9.06$3KAug 10 · filed Aug 12Details
  • Brown Christopher D.sold9,442 shares ofMASSat $9.03$85KAug 10 · filed Aug 12Details
  • Brown Christopher D.sold20,000 shares ofMASSat $8.49$170KAug 5 · filed Aug 7Details
  • AWM Investment Company, Inc.sold50,000 shares ofMASSat $8.355$418KAug 4 · filed Aug 6Details
  • Vann Brandi Cexercised5,192 shares ofMASSAug 1 · filed Aug 3Details
  • Brown Christopher D.sold2,200 shares ofMASSat $9.02$20KJul 2 · filed Jul 7Details
  • Knopp Kevin J.sold222 shares ofMASSat $9.07$2KJul 2 · filed Jul 7Details
  • Brown Christopher D.sold20,000 shares ofMASSat $8.84$177KJun 30 · filed Jul 2Details
  • View all trades for MASS →
    Spoto Mark
    5 trades
  • Leonhart Michele M.4 trades
  • CRANDELL KEITH3 trades
  • ELOI FENEL M3 trades
  • HRUSOVSKY E KEVIN3 trades
  • Hunt Anthony3 trades
  • Otitoju Kolawole A.2 trades