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908 Devices Inc.

MASS
Exchange
Nasdaq
Industry
Laboratory Analytical Instruments
SEC CIK
0001555279

In the last 90 days, 908 Devices Inc. insiders filed 0 open-market purchases and 14 sales; 111 institutions reported holding it in 13F filings for Q2 2026, worth $252.2M in total; ARK Invest is the only superinvestor holding it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by 908 Devices Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
14 filings
5 insiders, $4.27M in total
Insiders trading
5
Net value
−$4.27M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for 908 Devices Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for 908 Devices Inc.
NameTitleLast reported holdingLast filingFilings, past year
AWM Investment Company, Inc.10% Owner4,754,773IndirectSep 25, 20268
Kenneweg JohnSVP, Sales & Product Marketing57,784Sep 17, 20264
Brown Christopher D.Director775,559Sep 4, 202612
Griffith Joseph H. IVChief Financial Officer121,497Aug 27, 20264
Knopp Kevin J.President and CEO555,968Aug 17, 20266
Vann Brandi CDirector5,192Aug 3, 20262
Leonhart Michele M.Director27,054Jun 25, 20262
Crandell KeithDirector39,374Jun 12, 20261
Eloi Fenel MDirector40,897Jun 12, 20261
Hrusovsky E KevinDirector165,390Jun 12, 20261
Hunt AnthonyDirector44,168Jun 12, 20261
Spoto MarkDirector89,346Jun 12, 20262
Otitoju Kolawole A.Chief Bus. & Strategy Officer–Apr 22, 20261
McCallion Kevin J.SVP, Products and Production44,925Apr 14, 20263
Turner Michael S.Chief Legal & Admin Officer0Jun 18, 20250
George Jeffrey P.Director26,814Jun 13, 20250
Eisenberg MarciaDirector25,957Jun 13, 20250
Fitzpatrick MauraVP, Product Management & Mktg2,834Feb 3, 20230
Barthelemy NicolasDirector15,379Jun 17, 20220
Basarsky Trent A.VP, Corporate Development80,000Apr 28, 20220

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Sep 25, 2026 (view filing)4:19 PM ETSep 23-242 daysAWM Investment Company, Inc.10% OwnerSSale−25.0K$11.36−$283.9K−0.5%4.75M after2 lots
Sep 17, 2026 (view filing)5:27 PM ETSep 15-172 daysKenneweg JohnSVP, Sales & Product MarketingSSale−27.7K$10.13−$280.1K−32.4%57.8K after3 lots10b5-1
Sep 4, 2026 (view filing)4:15 PM ETSep 22 daysBrown Christopher D.DirectorSSale−30.0K$10.58−$317.4K−3.7%775.6K after10b5-1
Aug 27, 2026 (view filing)4:55 PM ETAug 252 daysGriffith Joseph H. IVChief Financial OfficerSSale−11.5K$10.95−$125.5K−8.6%121.5K after10b5-1
Aug 24, 2026 (view filing)4:50 PM ETAug 20-214 daysAWM Investment Company, Inc.10% OwnerSSale−50.0K$10.60−$529.8K−1.0%4.78M after2 lots
Aug 17, 2026 (view filing)5:30 PM ETAug 13-174 daysKnopp Kevin J.President and CEOSSale−27.6K$10.27−$283.7K−4.7%556.0K after2 lots10b5-1
Aug 12, 2026 (view filing)5:05 PM ETAug 10-112 daysBrown Christopher D.DirectorSSale−17.8K$9.12−$162.4K−2.2%805.6K after2 lots10b5-1
Aug 12, 2026 (view filing)5:05 PM ETAug 10-122 daysKnopp Kevin J.President and CEOSSale−149.0K$9.90−$1.48M−20.3%583.6K after4 lots10b5-1
Aug 7, 2026 (view filing)4:50 PM ETAug 52 daysBrown Christopher D.DirectorSSale−20.0K$8.49−$169.8K−2.4%823.4K after10b5-1
Aug 6, 2026 (view filing)4:26 PM ETAug 42 daysAWM Investment Company, Inc.10% OwnerSSale−50.0K$8.36−$417.8K−1.0%4.83M after
Jul 7, 2026 (view filing)4:45 PM ETJul 25 daysKnopp Kevin J.President and CEOSSale−222$9.07−$2.01K0.0%732.6K after10b5-1
Jul 7, 2026 (view filing)4:45 PM ETJul 25 daysBrown Christopher D.DirectorSSale−2.20K$9.02−$19.8K−0.3%843.4K after10b5-1
Jul 2, 2026 (view filing)4:15 PM ETJun 302 daysBrown Christopher D.DirectorSSale−20.0K$8.84−$176.8K−2.3%845.6K after10b5-1
Jun 30, 2026 (view filing)Jun 264 daysKnopp Kevin J.President and CEOSSale−2.80K$9.09−$25.4K−0.4%732.8K after10b5-1
Jun 25, 2026 (view filing)Jun 232 daysBrown Christopher D.DirectorSSale−9.90K$9.04−$89.5K−1.1%865.6K after10b5-1
Jun 25, 2026 (view filing)Jun 23-252 daysKnopp Kevin J.President and CEOSSale−60.3K$9.12−$550.6K−7.6%735.6K after3 lots10b5-1
Jun 24, 2026 (view filing)Jun 22-232 daysAWM Investment Company, Inc.10% OwnerSSale−7.72K$8.99−$69.4K−0.2%4.88M after2 lots
Jun 5, 2026 (view filing)Jun 41 dayBrown Christopher D.DirectorSSale−100$9.00−$9000.0%875.5K after10b5-1
Jun 4, 2026 (view filing)Jun 31 dayBrown Christopher D.DirectorSSale−20.0K$8.73−$174.6K−2.2%875.6K after10b5-1
Jun 4, 2026 (view filing)Jun 2-42 daysAWM Investment Company, Inc.10% OwnerSSale908 DEVICES, INC.−42.3K$8.97−$379.2K−0.9%4.89M after2 lots
May 29, 2026 (view filing)May 281 dayBrown Christopher D.DirectorSSale−30.0K$9.00−$270.0K−3.2%895.6K after10b5-1
May 29, 2026 (view filing)May 27-282 daysAWM Investment Company, Inc.10% OwnerSSale908 DEVICES, INC.−186.9K$8.62−$1.61M−3.7%4.93M after3 lots
May 29, 2026 (view filing)May 281 dayGriffith Joseph H. IVChief Financial OfficerSSale−6.94K$9.03−$62.7K−5.0%133.0K after10b5-1
May 13, 2026 (view filing)May 112 daysAWM Investment Company, Inc.10% OwnerSSale−5.00K$8.25−$41.3K−0.1%5.12M after
May 11, 2026 (view filing)May 83 daysKenneweg JohnSVP, Sales & Product MarketingSSale−18.3K$8.11−$148.0K−24.0%57.8K after
May 8, 2026 (view filing)May 6-82 daysAWM Investment Company, Inc.10% OwnerSSale908 DEVICES, INC.−78.2K$8.08−$632.3K−1.5%5.12M after4 lots
May 7, 2026 (view filing)May 61 dayBrown Christopher D.DirectorSSale−20.0K$7.23−$144.6K−2.1%925.6K after10b5-1
May 4, 2026 (view filing)May 13 daysKenneweg JohnSVP, Sales & Product MarketingSSale−7.79K$6.83−$53.2K−9.3%76.0K after
Apr 14, 2026 (view filing)Apr 104 daysMcCallion Kevin J.SVP, Products and ProductionSSale−2.69K$7.01−$18.9K−5.7%44.9K after10b5-1
Apr 10, 2026 (view filing)Apr 8-92 daysMcCallion Kevin J.SVP, Products and ProductionSSale−24.0K$7.05−$169.1K−34.8%44.9K after2 lots10b5-1
Apr 10, 2026 (view filing)Apr 8-102 daysBrown Christopher D.DirectorSSale−40.0K$7.06−$282.3K−4.1%945.6K after3 lots10b5-1
Mar 5, 2026 (view filing)Mar 23 daysMcCallion Kevin J.SVP, Products and ProductionSSale−7$7.00−$490.0%44.9K afterAmended10b5-1
Feb 3, 2026 (view filing)Feb 21 dayKnopp Kevin J.President and CEOSSale−34.8K$6.18−$214.8K−4.2%796.0K after
Feb 3, 2026 (view filing)Feb 21 dayGriffith Joseph H. IVChief Financial OfficerSSale−23.2K$6.18−$143.2K−14.2%139.9K after
Oct 6, 2025 (view filing)Oct 2-34 daysGriffith Joseph H. IVChief Financial OfficerSSale−5.00K$9.05−$45.2K−5.1%92.9K after2 lots10b5-1
Sep 23, 2025 (view filing)Sep 194 daysGriffith Joseph H. IVChief Financial OfficerSSale−5.00K$7.07−$35.4K−4.9%97.9K after10b5-1
Jun 18, 2025 (view filing)Jun 16-182 daysTurner Michael S.Chief Legal & Admin OfficerSSale−24.6K$7.51−$184.8K−100.0%0 after3 lots
Jun 6, 2025 (view filing)Jun 42 daysGriffith Joseph H. IVChief Financial OfficerSSale−6.94K$7.08−$49.1K−6.3%102.9K after
May 19, 2025 (view filing)May 154 daysKnopp Kevin J.President and CEOPPurchase+15.0K$4.44+$66.6K+2.1%722.7K after
May 15, 2025 (view filing)May 141 daySpoto MarkDirectorPPurchase+10.0K$4.29+$42.9K+18.9%63.0K after2 lots
May 14, 2025 (view filing)May 14Same dayKnopp Kevin J.President and CEOPPurchase+15.0K$4.32+$64.8K+2.2%707.7K after
Feb 4, 2025 (view filing)Feb 31 dayGriffith Joseph H. IVChief Financial OfficerSSale−10.2K$2.34−$24.0K−8.5%109.9K after3 lots
Feb 4, 2025 (view filing)Feb 31 dayTurner Michael S.Chief Legal & Admin OfficerSSale−9.67K$2.33−$22.5K−28.2%24.6K after3 lots
Feb 4, 2025 (view filing)Feb 31 dayKnopp Kevin J.President and CEOSSale−16.0K$2.32−$37.1K−2.3%692.7K after3 lots
Feb 4, 2025 (view filing)Feb 31 dayBrown Christopher D.Chief Product OfficerSSale−7.77K$2.34−$18.2K−0.8%962.1K after3 lots
May 13, 2024 (view filing)May 13Same dayKnopp Kevin J.President and CEOPPurchase+10.0K$6.42+$64.2K+2.0%509.0K after
May 10, 2024 (view filing)May 10Same dayKnopp Kevin J.President and CEOPPurchase+10.0K$5.77+$57.7K+2.0%499.0K after
May 9, 2024 (view filing)May 9Same dayKnopp Kevin J.President and CEOPPurchase+10.0K$5.83+$58.3K+2.1%489.0K after
May 8, 2024 (view filing)May 8Same dayKnopp Kevin J.President and CEOPPurchase+10.0K$5.72+$57.2K+2.1%479.0K after
May 7, 2024 (view filing)May 7Same dayKnopp Kevin J.President and CEOPPurchase+10.0K$5.60+$56.0K+2.2%469.0K after