908 Devices Inc. (MASS) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

34,059,434Shares Outstanding

1,106,065Shares held by institutions

$7,476,999Value of institutional holdings

49.20%Institutional ownership %

-0.67%Shares Changed QoQ

82No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Recent 13F filings as of December 2025 show that 110 institutional investors hold a position in 908 Devices Inc. (NASDAQ:MASS).

The collective stake of institutional investors in 908 Devices moved to 68.5% in December 2025, a shift up from the 64.9% reported for September 2025.
Institutional share ownership changed by 9.08% QoQ, while the number of institutional owners saw an increase of 34.15% YoY.
Among the 110 institutional holders of 908 Devices, 58 added to their stakes while 39 trimmed their positions and 13 held steady.
The aggregate institutional position in 908 Devices now stands at 25.73Mn shares as of December 2025, after investors increased their holdings (up by 2.14Mn shares quarter on quarter which is up 8.97Mn shares year over year).
AWM Investment Company, Inc. continues to be the largest institutional holder of 908 Devices as of December 31, 2025, with a position of 5.20Mn shares, representing 13.85% of the company's outstanding stock.
Among the most significant buyers of 908 Devices during December 2025 were First Light Asset Management, LLC (2.33Mn), NEEDHAM INVESTMENT MANAGEMENT LLC (548.00K), CITADEL ADVISORS LLC (264.37K), Meros Investment Management, LP (242.71K), HighMark Wealth Management LLC (241.00K).
Leading sellers of 908 Devices stock in December 2025 included STATE STREET CORP (1.70Mn), GM Advisory Group, LLC (399.29K), MARSHALL WACE, LLP (249.00K), BANK OF AMERICA CORP /DE/ (243.73K), ROYAL BANK OF CANADA (183.44K).
The top 10 institutional holders of 908 Devices for the quarter ending December 2025 included AWM Investment Company, Inc. (5.20Mn), First Light Asset Management, LLC (4.84Mn), ARK Investment Management LLC (1.99Mn), BlackRock, Inc. (1.80Mn), VANGUARD GROUP INC (1.47Mn), NEEDHAM INVESTMENT MANAGEMENT LLC (770.00K), GEODE CAPITAL MANAGEMENT, LLC (688.57K), First Eagle Investment Management, LLC (623.88K), STATE STREET CORP (596.29K), Tao Capital Management LP (568.98K).

110 Institutional Holders

1,106,065 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
AWM Investment Company, Inc.	31 Dec, 2025	5,199,924	0	0.00%	$27,299,601.00
First Light Asset Management, LLC	31 Dec, 2025	4,836,186	2,325,690	92.64%	$25,389,977.00
ARK Investment Management LLC	31 Dec, 2025	1,985,986	32,214	1.65%	$10,426,428.00
BlackRock, Inc.	31 Dec, 2025	1,801,772	45,567	2.59%	$9,459,304.00
VANGUARD GROUP INC	31 Dec, 2025	1,470,864	49,132	3.46%	$7,722,037.00
NEEDHAM INVESTMENT MANAGEMENT LLC	31 Dec, 2025	770,000	548,000	246.85%	$4,042,500.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	688,566	16,477	2.45%	$3,615,638.00
First Eagle Investment Management, LLC	31 Dec, 2025	623,883	19,921	3.30%	$3,275,386.00
STATE STREET CORP	31 Dec, 2025	596,294	-1,702,354	-74.06%	$3,130,544.00
Tao Capital Management LP	31 Dec, 2025	568,981	0	0.00%	$2,987,150.00
ESSEX INVESTMENT MANAGEMENT CO LLC	31 Dec, 2025	482,614	-11,335	-2.29%	$2,533,724.00
MORGAN STANLEY	31 Dec, 2025	440,486	-131,194	-22.95%	$2,312,556.00
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C.	31 Dec, 2025	361,595	171,590	90.31%	$1,898,374.00
Meros Investment Management, LP	31 Dec, 2025	347,035	242,712	232.65%	$1,821,934.00
Amova Asset Management Americas, Inc.	31 Dec, 2025	288,081	-30,269	-9.51%	$1,509,544.00
Sumitomo Mitsui Trust Group, Inc.	31 Dec, 2025	288,081	-30,269	-9.51%	$1,512,425.00
GM Advisory Group, LLC	31 Dec, 2025	278,792	-399,294	-58.89%	$1,463,658.00
CITADEL ADVISORS LLC	31 Dec, 2025	264,373	264,373	0.00%	$1,387,959.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	246,614	-78,174	-24.07%	$1,294,615.00
HighMark Wealth Management LLC	31 Dec, 2025	241,000	241,000	0.00%	$1,265,250.00

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