908 Devices MASS Institutional Ownership

NASDAQ MASS

$12.34 +0.49 (+4.14%)

As of: Sep 30, 2026 · 3:59 PM EDT

Institutions by Trading Activity

113 Institutions

Increased 59 52.2%

Unchanged 18 15.9%

Reduced 36 31.9%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

74.61%

▼-0.56 pp QoQ

Shares Held by Institutions

28.15Mn

of 37.73Mn outstanding

▲+6.62% QoQ

Shares Outstanding

37.73Mn

9.58Mn held outside 13F filers

Institutional Investors

113

filed 13F for Jun 2026

▲+2 vs prior quarter

Net Shares Added (QoQ)

+1.75Mn

accumulated since last quarter

Value of Holdings

$333.55Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

908 Devices Inc. (NASDAQ:MASS) has 113 institutional investors with active 13F positions as of June 2026.

Collectively, these holders controlled 74.6% of 908 Devices's outstanding shares in June 2026, down from 75.2% in March 2026.
They increased total shares held in 908 Devices by 6.62% from the prior quarter, while the number of investors in MASS increased 13.0% year over year.
Among the 113 funds, 59 bought more 908 Devices shares, 36 sold down, and 18 held their ground.
The aggregate institutional position in 908 Devices amounted to 28.15Mn shares as of June 2026, up by 1.75Mn shares quarter on quarter, and up 4.5Mn shares year over year.
As of June 30, 2026, First Light Asset Management, LLC held the largest stake in 908 Devices with 6.28Mn shares, accounting for 16.65% of total shares outstanding.
Leading buyers of 908 Devices shares for the quarter ending June 2026 were NEEDHAM INVESTMENT MANAGEMENT LLC (700.62K), AMERICAN CENTURY COMPANIES INC (303.95K), Sixth Street Partners Management Company, L.P. (233.89K), Bank Of America Corp /De/ (225.95K), First Light Asset Management, LLC (210.24K).
The largest sales of MASS for the quarter ending June 2026 came from AWM Investment Company, Inc. (320.15K), GSA CAPITAL PARTNERS LLP (201.87K), Squarepoint Ops LLC (175.45K), Sei Investments Co (87.18K), CITADEL ADVISORS LLC (81.8K).
Per Business Quant data, the top 10 holders of 908 Devices for the quarter ending June 2026 are First Light Asset Management, LLC (6.28Mn), AWM Investment Company, Inc. (4.88Mn), ARK Investment Management LLC (2.03Mn), BlackRock, Inc. (1.94Mn), NEEDHAM INVESTMENT MANAGEMENT LLC (1.82Mn), VANGUARD CAPITAL MANAGEMENT LLC (1.29Mn), First Eagle Investment Management, LLC (929.98K), GEODE CAPITAL MANAGEMENT, LLC (761.8K), Granahan Investment Management, LLC (692.09K), State Street Corp (606.56K).

Form 13F Holdings

113 Institutional Holders

Report period 30 Jun, 2026

Total shares held 28.15Mn

Of outstanding 74.61%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	First Light Asset Management, LLC	0001600004	6,282,804	16.65%	▲210,241	+3.46%	$54.66Mn
2	AWM Investment Company, Inc.	0001535264	4,879,773	12.93%	▼320,151	-6.16%	$42.45Mn
3	ARK Investment Management LLC	0001697748	2,027,920	5.38%	▲81,235	+4.17%	$17.64Mn
4	BlackRock, Inc.	0002012383	1,944,236	5.15%	▲176,920	+10.01%	$16.91Mn
5	NEEDHAM INVESTMENT MANAGEMENT LLC	0001167212	1,820,620	4.83%	▲700,620	+62.56%	$15.84Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,291,570	3.42%	▲172,334	+15.40%	$11.24Mn
7	First Eagle Investment Management, LLC	0001325447	929,985	2.46%	▼677,227	-42.14%	$8.09Mn
8	GEODE CAPITAL MANAGEMENT, LLC	0001214717	761,797	2.02%	▲66,342	+9.54%	$6.63Mn
9	Granahan Investment Management, LLC	0001026710	692,092	1.83%	▼2,978	-0.43%	$6.02Mn
10	State Street Corp	0000093751	606,560	1.61%	▼19,332	-3.09%	$5.28Mn
11	ESSEX INVESTMENT MANAGEMENT CO LLC	0000201772	470,244	1.25%	▼20,977	-4.27%	$4.09Mn
12	Morgan Stanley	0000895421	404,078	1.07%	▲30,820	+8.26%	$3.52Mn
13	PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C.	0001166152	361,595	0.96%	0	0.00%	$3.15Mn
14	Meros Investment Management, LP	0001911372	361,368	0.96%	▼370	-0.10%	$3.14Mn
15	AMERICAN CENTURY COMPANIES INC	0000748054	359,848	0.95%	▲303,954	+543.80%	$3.13Mn
16	HighMark Wealth Management LLC	0001802451	339,783	0.90%	▲20,433	+6.40%	$2.96Mn
17	Northern Trust Corp	0000073124	266,417	0.71%	▲25,085	+10.39%	$2.32Mn
18	Bank Of America Corp /De/	0000070858	251,027	0.67%	▲225,949	+900.98%	$2.18Mn
19	Sixth Street Partners Management Company, L.P.	0001812095	233,892	0.62%	▲233,892	0.00%	$2.03Mn
19	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	233,892	0.62%	▲4,403	+1.92%	$2.03Mn

Showing 1 to 20 of 113 holders