908 Devices Inc.: which funds bought and sold

Institutions that bought and sold 908 Devices shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 56 institutions that filed 13F reports for both quarters added to or opened positions in 908 Devices, and 46 cut or closed them. Together they added a net 1.3M shares, +4.8% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 1.1M shares (+28.1%); index fund managers were net buyers of 465K shares (+9.2%). 14 opened a new position and 11 sold out entirely.

Bought, Q2 2026 56 institutions, 14 of them new holders Sold, Q2 2026 46 institutions, 11 of them sold out

Net change, all compared +1.3M shares (+4.8%)

Net change, active managers +1.1M shares (+28.1%), 13 bought, 8 sold

Buyers versus sellers

institutions compared, 120

56 bought 18 46 sold

Active managers and hedge funds 13 bought · 8 sold · +1.1M

Index fund managers 8 bought · 1 sold · +465K

Other institutions 35 bought · 37 sold · −233K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
First Eagle Investment Management, LLC Active manager	+1.1M +131.5%	1.9M	$16.2M
Needham Investment Management LLC	+581K +46.8%	1.8M	$15.8M
American Century Companies Inc Active manager	+304K +543.8%	360K	$3.1M
Bank Of America Corp	+226K +901.0%	251K	$2.2M
First Light Asset Management, LLC	+210K +3.5%	6.3M	$54.7M
Blackrock, Inc. Index funds	+177K +10.0%	1.9M	$16.9M
Vanguard Capital Management LLC Index funds	+172K +15.4%	1.3M	$11.2M
Campbell & Co Investment Adviser LLC	+82K +274.9%	111K	$967,353
ARK Investment Management LLC Active manager	+81K +4.2%	2.0M	$17.6M
D. E. Shaw & Co., Inc. Hedge fund	+75K New position	75K	$656,380
Acadian Asset Management LLC Active manager	+70K New position	70K	$609,000
Geode Capital Management, LLC Index funds	+66K +9.5%	762K	$6.6M
Nuveen, LLC	+41K +40.2%	142K	$1.2M
Vanguard Portfolio Management LLC Index funds	+31K +19.0%	195K	$1.7M
Morgan Stanley	+31K +8.3%	404K	$3.5M
Northern Trust Corp Index funds	+25K +10.4%	266K	$2.3M
Brevan Howard Capital Management LP Hedge fund	+21K New position	21K	$180,020
Highmark Wealth Management LLC	+20K +6.4%	340K	$3M
Pier 88 Investment Partners LLC	+14K New position	14K	$123,540
Wells Fargo & Company	+14K +132.6%	24K	$212,032

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
First Eagle Investment Management, LLC Active manager	+1.1M +131.5%	1.9M	$16.2M
American Century Companies Inc Active manager	+304K +543.8%	360K	$3.1M
ARK Investment Management LLC Active manager	+81K +4.2%	2.0M	$17.6M
D. E. Shaw & Co., Inc. Hedge fund	+75K New position	75K	$656,380
Acadian Asset Management LLC Active manager	+70K New position	70K	$609,000
Brevan Howard Capital Management LP Hedge fund	+21K New position	21K	$180,020
Magnetar Financial LLC Hedge fund	+14K New position	14K	$120,191
Schonfeld Strategic Advisors LLC Hedge fund	+11K New position	11K	$96,864
FMR LLC Active manager	+8,856 +84.0%	19K	$168,773
Alliancebernstein L.P. Active manager	+6,400 +19.3%	40K	$242,046

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Tao Capital Management LP	−569K Sold out	0	—
Awm Investment Company, Inc.	−320K −6.2%	4.9M	$42.5M
Gsa Capital Partners LLP	−202K −80.4%	49K	$428,000
Squarepoint Ops LLC Hedge fund	−175K −82.3%	38K	$328,329
Millennium Management LLC Hedge fund	−142K Sold out	0	—
Sei Investments Co	−87K −52.9%	78K	$676,155
Citadel Advisors LLC Hedge fund	−82K −56.6%	63K	$545,899
Trexquant Investment LP Hedge fund	−73K Sold out	0	—
Cassaday & Co Wealth Management LLC	−72K Sold out	0	—
Two Sigma Investments, LP Hedge fund	−44K Sold out	0	—
Xtx Topco Ltd	−41K Sold out	0	—
Amova Asset Management Americas, Inc.	−41K −15.3%	229K	$2M
Sumitomo Mitsui Trust Group, Inc.	−41K −15.3%	229K	$2M
Renaissance Technologies LLC Hedge fund	−38K −16.6%	192K	$1.7M
Goldman Sachs Group Inc	−35K −31.5%	76K	$663,201
Mitsubishi Ufj Asset Management Co., Ltd.	−22K −16.5%	111K	$961,846
Essex Investment Management Co LLC	−21K −4.3%	470K	$4.1M
State Street Corp Index funds	−19K −3.1%	607K	$5.3M
49 Wealth Management, LLC	−17K Sold out	0	—
UBS Group AG	−16K −17.2%	77K	$673,519

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Squarepoint Ops LLC Hedge fund	−175K −82.3%	38K	$328,329
Millennium Management LLC Hedge fund	−142K Sold out	0	—
Citadel Advisors LLC Hedge fund	−82K −56.6%	63K	$545,899
Trexquant Investment LP Hedge fund	−73K Sold out	0	—
Two Sigma Investments, LP Hedge fund	−44K Sold out	0	—
Renaissance Technologies LLC Hedge fund	−38K −16.6%	192K	$1.7M
AQR Capital Management LLC Hedge fund	−497 −0.5%	104K	$904,008
Antipodes Partners Ltd Hedge fund	−408 −9.3%	3,994	$34,748

New positions

largest by value

Institution	Shares	Value June 30, 2026
D. E. Shaw & Co., Inc.Hedge fund	75K	$656,380
Acadian Asset Management LLCActive manager	70K	$609,000
Brevan Howard Capital Management LPHedge fund	21K	$180,020
Pier 88 Investment Partners LLC	14K	$123,540
Magnetar Financial LLCHedge fund	14K	$120,191
Advyzon Investment Management, LLC	12K	$107,341
Occudo Quantitative Strategies LP	12K	$106,627
Schonfeld Strategic Advisors LLCHedge fund	11K	$96,864
Axq Capital, LP	11K	$93,125
Wealth Enhancement Advisory Services, LLC	11K	$91,733

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Tao Capital Management LP	569K	$3.5M
Millennium Management LLCHedge fund	142K	$871,623
Trexquant Investment LPHedge fund	73K	$447,947
Cassaday & Co Wealth Management LLC	72K	$438,370
Two Sigma Investments, LPHedge fund	44K	$270,057
Xtx Topco Ltd	41K	$253,154
49 Wealth Management, LLC	17K	$104,658
Dynamic Technology Lab Private Ltd	14K	$85,056
Intelligence Driven Advisers, LLC	10K	$61,200
Group One Trading LLC	202	$1,236

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 110
Ten largest holders: 76.9%
Index fund managers: 19.1%
Active managers and hedge funds: 17.3%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	13	8	5	3	+1.1M	+28.1%
Index fund managers	8	1	0	0	+465K	+9.2%
Other institutions	35	37	9	8	−233K	−1.3%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on 908 Devices.

Only managers that filed a holdings report for both quarters are compared (120 here). 5 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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