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MASS

908 Devices Inc.

NASDAQ · Healthcare · Medical - Devices · US

$10.53
−4.10%
Ask drillr
0
Insider buys (3m)
27
Insider sells (3m)
-$4.7M
Net value (3m)
+19.9%
Price return (3m)
Form 4 filings
DateInsiderActivitySharesPrice
Sep 17, 2026Kenneweg John · officer: SVP, Sales & Product MarketingSale1,000$10
Sep 17, 2026Kenneweg John · officer: SVP, Sales & Product MarketingM-Exempt1,000$0.96
Sep 17, 2026Kenneweg John · officer: SVP, Sales & Product MarketingM-Exempt5,257$0.96
Sep 17, 2026Kenneweg John · officer: SVP, Sales & Product MarketingSale21,399$10
Sep 17, 2026Kenneweg John · officer: SVP, Sales & Product MarketingSale5,257$10
Sep 17, 2026Kenneweg John · officer: SVP, Sales & Product MarketingM-Exempt21,399$0.96
Sep 4, 2026Brown Christopher D. · directorSale30,000$11
Aug 27, 2026Griffith Joseph H. IV · officer: Chief Financial OfficerSale11,459$11
Aug 24, 2026AWM Investment Company, Inc. · 10 percent ownerSale8,422$11
Aug 24, 2026AWM Investment Company, Inc. · 10 percent ownerSale41,578$11
Aug 17, 2026Knopp Kevin J. · director, officer: President and CEOSale7,622$10
Aug 17, 2026Knopp Kevin J. · director, officer: President and CEOSale20,000$10
Aug 12, 2026Knopp Kevin J. · director, officer: President and CEOSale348$9.06
Aug 12, 2026Brown Christopher D. · directorSale8,358$9.23
Aug 12, 2026Knopp Kevin J. · director, officer: President and CEOSale2,747$10
Aug 12, 2026Knopp Kevin J. · director, officer: President and CEOSale30,170$10
Aug 12, 2026Knopp Kevin J. · director, officer: President and CEOSale115,748$9.83
Aug 12, 2026Brown Christopher D. · directorSale9,442$9.03
Aug 7, 2026Brown Christopher D. · directorSale20,000$8.49
Aug 6, 2026AWM Investment Company, Inc. · 10 percent ownerSale50,000$8.36
Aug 3, 2026Vann Brandi C · directorM-Exempt5,192$0.00
Jul 7, 2026Brown Christopher D. · directorSale2,200$9.02
Jul 7, 2026Knopp Kevin J. · director, officer: President and CEOSale222$9.07
Jul 2, 2026Brown Christopher D. · directorSale20,000$8.84
Jun 30, 2026Knopp Kevin J. · director, officer: President and CEOSale2,798$9.09
Jun 25, 2026Knopp Kevin J. · director, officer: President and CEOSale16,388$9.10
Jun 25, 2026Knopp Kevin J. · director, officer: President and CEOSale40,535$9.14
Jun 25, 2026Brown Christopher D. · directorSale9,900$9.04
Jun 25, 2026Leonhart Michele M. · directorM-Exempt6,486$0.00
Jun 25, 2026Knopp Kevin J. · director, officer: President and CEOSale3,422$9.06
Institutional positioning

13F filings over the trailing two quarters

New 27Increased 77Reduced 81Sold out 11
FilerActionSharesFiled
First Light Asset Management, LLCIncreased6,282,804Aug 14, 2026
FIRST LIGHT ASSET MANAGEMENT, LLCIncreased6,072,563May 15, 2026
AWM INVESTMENT COMPANY, INC.Unchanged5,199,924May 15, 2026
AWM Investment Company, Inc.Reduced4,879,773Aug 14, 2026
ARK Investment Management LLCIncreased2,027,920Aug 14, 2026
ARK INVESTMENT MANAGEMENT LLCReduced1,946,685May 12, 2026
BlackRock, Inc.Increased1,944,236Aug 7, 2026
NEEDHAM INVESTMENT MANAGEMENT LLCIncreased1,820,620Aug 14, 2026
BLACKROCK, INC.Reduced1,767,316May 13, 2026
VANGUARD CAPITAL MANAGEMENT LLCIncreased1,291,570Aug 13, 2026
NEEDHAM INVESTMENT MANAGEMENT LLCIncreased1,240,000May 15, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position1,119,236May 15, 2026
First Eagle Investment Management, LLCIncreased929,985Aug 24, 2026
FIRST EAGLE INVESTMENT MANAGEMENT, LLCIncreased803,606May 14, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased761,797Aug 12, 2026

Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Sep 17, 2026