908 Devices MASS Institutional Ownership

NASDAQ MASS

$11.51 +0.08 (+0.70%)

At close: Oct 20, 2026 · 4:00 PM EDT

Institutions by Trading Activity

112 Institutions

Increased 58 51.8%

Unchanged 18 16.1%

Reduced 36 32.1%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

73.34%

▼-0.62 pp QoQ

Shares Held by Institutions

27.91Mn

of 38.06Mn outstanding

▲+0.87% QoQ

Shares Outstanding

38.06Mn

10.15Mn held outside 13F filers

Institutional Investors

112

filed 13F for Jun 2026

▲+1 vs prior quarter

Net Shares Added (QoQ)

+239.46K

accumulated since last quarter

Value of Holdings

$331.90Mn

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

Updated Oct 10, 2026

908 Devices Inc. (NASDAQ:MASS) had 112 institutional holders reporting a position on Form 13F for the quarter ended June 30, 2026.

These investors held 73.34% of 908 Devices' outstanding shares at the end of Q2 2026, down from 73.97% in Q1 2026.
Total shares held in 908 Devices rose 0.87% from Q1 2026, while the number of holders rose 14.29% from Q2 2025.
Among the 112 holders of 908 Devices, 58 added to their positions, 36 reduced their stakes and 18 left their positions unchanged.
Institutional investors held 27.91Mn shares of 908 Devices in total at the end of Q2 2026, up 239.46K from the prior quarter and up 4.27Mn from a year earlier.
First Light Asset Management, LLC was the top holder of 908 Devices as of June 30, 2026, with 6.28Mn shares, or 16.51% of shares outstanding.
Among existing holders, the largest additions to 908 Devices in Q2 2026 came from Needham Investment Management LLC (+700.62K shares), American Century Companies Inc (+303.95K shares), Bank of America Corp (+225.95K shares), First Light Asset Management, LLC (+210.24K shares) and BlackRock, Inc. (+176.92K shares).
The biggest cuts to MASS positions during Q2 2026 came from AWM Investment Company, Inc. (-320.15K shares), GSA Capital Partners LLP (-201.87K shares), Squarepoint Ops LLC (-175.45K shares), SEI Investments Co (-87.17K shares) and Citadel Advisors LLC (-81.8K shares).
Per Business Quant data, the 10 largest holders of 908 Devices at the end of Q2 2026 were First Light Asset Management, LLC (6.28Mn shares), AWM Investment Company, Inc. (4.88Mn shares), ARK Investment Management LLC (2.03Mn shares), BlackRock, Inc. (1.94Mn shares), Needham Investment Management LLC (1.82Mn shares), Vanguard Capital Management LLC (1.29Mn shares), First Eagle Investment Management, LLC (929.99K shares), Geode Capital Management, LLC (761.8K shares), Granahan Investment Management, LLC (692.09K shares) and State Street Corp (606.56K shares).

Form 13F Holdings

112 Institutional Holders

Report period 30 Jun, 2026

Total shares held 27.91Mn

Of outstanding 73.34%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	First Light Asset Management, LLC	0001600004	6,282,804	16.51%	▲210,241	+3.46%	$54.66Mn
2	AWM Investment Company, Inc.	0001535264	4,879,773	12.82%	▼320,151	-6.16%	$42.45Mn
3	ARK Investment Management LLC	0001697748	2,027,920	5.33%	▲81,235	+4.17%	$17.64Mn
4	BlackRock, Inc.	0002012383	1,944,236	5.11%	▲176,920	+10.01%	$16.91Mn
5	NEEDHAM INVESTMENT MANAGEMENT LLC	0001167212	1,820,620	4.78%	▲700,620	+62.56%	$15.84Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,291,570	3.39%	▲172,334	+15.40%	$11.24Mn
7	First Eagle Investment Management, LLC	0001325447	929,985	2.44%	▲126,379	+15.73%	$8.09Mn
8	GEODE CAPITAL MANAGEMENT, LLC	0001214717	761,797	2.00%	▲66,342	+9.54%	$6.63Mn
9	Granahan Investment Management, LLC	0001026710	692,092	1.82%	▼2,978	-0.43%	$6.02Mn
10	State Street Corp	0000093751	606,560	1.59%	▼19,332	-3.09%	$5.28Mn
11	ESSEX INVESTMENT MANAGEMENT CO LLC	0000201772	470,244	1.24%	▼20,977	-4.27%	$4.09Mn
12	Morgan Stanley	0000895421	404,078	1.06%	▲30,820	+8.26%	$3.52Mn
13	PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C.	0001166152	361,595	0.95%	0	0.00%	$3.15Mn
14	Meros Investment Management, LP	0001911372	361,368	0.95%	▼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	0.89%	▲20,433	+6.40%	$2.96Mn
17	Northern Trust Corp	0000073124	266,417	0.70%	▲25,085	+10.39%	$2.32Mn
18	Bank Of America Corp /De/	0000070858	251,027	0.66%	▲225,949	+900.98%	$2.18Mn
19	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	233,892	0.61%	▲4,403	+1.92%	$2.03Mn
20	Sumitomo Mitsui Trust Group, Inc.	0001475365	228,681	0.60%	▼41,192	-15.26%	$1.99Mn

Showing 1 to 20 of 112 holders