908 DevicesMASS

13F holders, Q1 2025 (March 31)
87holders +6
22new positions
16sold out
4famous investors
$4.48avg. 13F price*

At the end of Q1 2025, 87 institutions reported holding 908 Devices Inc. (MASS) in their 13F filings, up 6 from Q4 2024. 22 opened new positions and 16 sold out. The largest holders were AWM Investment Company, Inc. ($23.3M), ARK Investment Management ($13.0M) and BlackRock, Inc. ($7.8M). 4 famous investors held it, including Cathie Wood (0.1% of ARK Investment Management's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).

Company
908 Devices Inc.
CUSIP
65443P102
Latest filing quarter
Q2 2026

History

Number of 13F holders

050100150 Q1 2024: 75Q1 2024Q2 2024: 90Q2 2024Q3 2024: 86Q3 2024Q4 2024: 81Q4 2024Q1 2025: 87Q1 2025Q2 2025: 101Q2 2025Q3 2025: 107Q3 2025Q4 2025: 118Q4 2025Q1 2026: 112Q1 2026Q2 2026: 111Q2 2026

Total Exit/New Position Q4 2024 → Q1 2025

InstitutionsTotal Value
New Positions22$14.6M
Exits16$6.8M

All 13F filers, Q4 2024 → Q1 2025: 7,849,983 shares bought and 3,983,398 shares sold, net +3,866,585 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 87 holders

AWM Investment Company, Inc. 3.21% Add +210.6% 5,199,924 $23.3M
ARK Investment Management 0.13% Add +4.0% 2,899,347 $13.0M
BlackRock, Inc. 0.00% Reduce -9.3% 1,746,984 $7.8M
First Light Asset Management, LLC 0.87% New 1,701,095 $7.6M
Vanguard Group Inc. 0.00% Add +2.8% 1,362,170 $6.1M
Invesco Ltd. 0.00% New 649,630 $2.9M
Geode Capital Management, LLC 0.00% Add +1.5% 589,839 $2.6M
Tao Capital Management LP 2.20% No change 568,981 $2.5M
Morgan Stanley 0.00% Add +99.4% 531,609 $2.4M
Essex Investment Management Co. LLC 0.45% New 480,549 $2.2M
State Street Corp. 0.00% Add +2.3% 467,865 $2.1M
Sumitomo Mitsui Trust Group, Inc. 0.00% Reduce -11.7% 412,574 $1.8M
Amova Asset Management Americas, Inc. 0.02% Reduce -11.7% 412,574 $1.8M
Dimensional Fund Advisors LP 0.00% No change 384,332 $1.7M
D. E. Shaw & Co. 0.00% Add +295.7% 339,715 $1.5M
Charles Schwab Investment Management Inc. 0.00% Add +5.2% 212,230 $951K
Northern Trust Corp. 0.00% Reduce -0.4% 200,021 $896K
Needham Investment Management LLC 0.08% No change 200,000 $896K
Prescott Group Capital Management, L.L.C. 0.12% Add +26.7% 190,005 $851K
Renaissance Technologies 0.00% Reduce -51.0% 144,600 $648K
Legato Capital Management LLC 0.09% New 142,442 $638K
Marshall Wace, LLP 0.00% Add +266.8% 141,234 $633K
Bank of America Corp. 0.00% Add +19.2% 112,906 $506K
Nuveen, LLC 0.00% — 106,951 $479K
Bank of Montreal 0.00% Add +60.3% 90,278 $404K
LPL Financial LLC 0.00% Add +31.2% 83,009 $372K
AQR Capital Management 0.00% New 81,558 $365K
FNY Investment Advisers, LLC 0.21% New 75,489 $338K
Goldman Sachs Group Inc. 0.00% Reduce -71.8% 74,656 $334K
Two Sigma Investments, LP 0.00% Add +268.0% 69,927 $313K
Bruce & Co., Inc. 0.10% No change 68,286 $306K
Susquehanna International Group, LLP 0.00% Add +84.5% 65,727 $294K
Bank of New York Mellon Corp 0.00% Add +4.0% 51,915 $233K
Gsa Capital Partners LLP 0.02% Reduce -56.0% 51,838 $232K
American Century Companies Inc. 0.00% Add +10.8% 45,814 $205K
49 Wealth Management, LLC 0.02% Reduce -7.9% 45,738 $205K
PDT Partners, LLC 0.01% New 41,600 $186K
Alliancebernstein L.P. 0.00% No change 41,190 $185K
XTX Topco Ltd 0.01% Reduce -26.8% 38,208 $171K
UBS Group AG 0.00% Add +70.7% 37,123 $166K
Rhumbline Advisers 0.00% Reduce -4.8% 34,522 $155K
Bridgeway Capital Management, LLC 0.00% Reduce -64.3% 30,500 $137K
BNP Paribas Financial Markets 0.00% Add +292.1% 24,230 $109K
Barclays PLC 0.00% Reduce -45.5% 24,031 $108K
Concurrent Investment Advisors, LLC 0.00% No change 23,470 $105K
IQ EQ FUND MANAGEMENT (IRELAND) Ltd 0.01% Add +115.6% 22,862 $102K
Deutsche Bank AG 0.00% Reduce -79.2% 20,670 $93K
SG Americas Securities, LLC 0.00% Add +92.8% 20,278 $91K
Thrivent Financial for Lutherans 0.00% No change 23,470 $85K
HSBC Holdings PLC 0.00% Reduce -3.5% 20,264 $85K
Axq Capital, LP 0.03% New 18,165 $81K
Citigroup Inc. 0.00% Reduce -37.2% 17,483 $78K
Wells Fargo & Company 0.00% Add +2.3% 14,019 $63K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% Add +4.7% 13,957 $63K
Wolverine Trading, LLC 0.00% New 14,353 $58K
JPMorgan Chase & Co. 0.00% Add +6.7% 12,534 $56K
T. Rowe Price Associates Inc. 0.00% New 12,410 $56K
Zacks Investment Management 0.00% New 12,388 $55K
Cresset Asset Management, LLC 0.00% Add +3.8% 12,187 $55K
Corebridge Financial, Inc. 0.00% Reduce -1.5% 11,626 $52K
Cambridge Investment Research Advisors, Inc. 0.00% New 10,000 $45K
Tower Research Capital LLC (TRC) 0.00% Reduce -35.2% 8,523 $38K
New York State Common Retirement Fund 0.00% No change 8,487 $38K
Cwm, LLC 0.00% Add +541.2% 6,963 $31K
FMR LLC 0.00% Add +151.6% 6,274 $28K
Allworth Financial LP 0.00% No change 5,269 $28K
Police & Firemen's Retirement System of New Jersey 0.00% New 5,622 $25K
ANTIPODES PARTNERS Ltd 0.00% New 4,382 $20K
Larson Financial Group LLC 0.00% New 3,638 $16K
Simplex Trading, LLC 0.00% Reduce -27.6% 3,516 $15K
Royal Bank of Canada 0.00% Add +20.1% 3,357 $15K
Versant Capital Management, Inc 0.00% New 1,989 $9K
Legal & General Group Plc 0.00% No change 1,821 $8K
California State Teachers Retirement System 0.00% No change 1,720 $8K
HM Payson & Co. 0.00% No change 1,500 $7K
Signaturefd, LLC 0.00% No change 1,447 $6K
Ameritas Investment Partners, Inc. 0.00% No change 1,442 $6K
Nisa Investment Advisors, LLC 0.00% Add +359.1% 684 $3K
Amalgamated Bank 0.00% No change 766 $3K
EverSource Wealth Advisors, LLC 0.00% New 483 $2K
Sterling Capital Management LLC 0.00% Reduce -49.8% 374 $2K
Osaic Holdings, Inc. 0.00% Add +100.0% 250 $1K
Coldstream Capital Management Inc. 0.00% New 247 $1K
Rise Advisors, LLC 0.00% New 207 $927
SouthState Bank Corp 0.00% New 200 $896
PNC Financial Services Group, Inc. 0.00% New 126 $564
True Wealth Design, LLC 0.00% New 32 $144

"% of holder's portfolio" is MASS's weight in each manager's 13F, not the share of 908 Devices Inc. the manager owns.