Market data loadingS&P 500--NASDAQ--Data as of latest ETNo timestamp

908 Devices Inc. (MASS) Institutional Ownership & Insider Trading

112 institutions reported holding 908 Devices Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 60 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

MASS908 Devices Inc.Follow MASS — free
Medical Devices · Healthcare
—
Price chart with a free account
Market cap
474.9M
P/E TTM
—
Dividend yield
—
52-week
—
Next earnings
16 Nov, in 23 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

112 institutions held 70.2% of the shares. Across filers that reported both quarters, shares held changed +4.8%.

Increased+43New+13Decreased-32Closed-11

Largest moves, shares (millions)

First Eagle Investment…+1.1MNeedham Investment…+0.6MAmerican Century Companies+0.3MTao Capital Management-0.6MAWM Investment Company-0.3MGsa Capital Partners-0.2M

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters
-1.1Sep 24-1.7Dec 24+3.9Mar 25+3.7Jun 25-0.0Sep 25+1.5Dec 25+1.8Mar 26+1.3Jun 26
QuarterHoldersShares held, MChangeIncreasedNewDecreasedClosed
Jun 2611229+4.8%43133211
Mar 2611228+7.2%3274215
Dec 2511626+6.3%3714369
Sep 2510425-0.1%26163511
Jun 259924+18.1%35252210
Mar 258721+23.2%30201815
Dec 248117-9.2%28162020
Sep 248519-6.3%3392115

908 Devices Inc. — questions

Who owns 908 Devices Inc. stock?
112 institutions reported 908 Devices Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: First Light Asset Management, LLC (15.2%), AWM Investment Company, Inc. (11.8%), ARK Investment Management LLC (4.9%).
Are 908 Devices Inc. insiders buying or selling?
60 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from 908 Devices Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.