Data Storage Corp: which funds bought and sold

Institutions that bought and sold Data Storage 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, 5 institutions that filed 13F reports for both quarters added to or opened positions in Data Storage, and 8 cut or closed them. Together they sold a net 65K shares, −30.7% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 25K shares (−40.6%); index fund managers were net sellers of 42K shares (−57.0%). 4 opened a new position and 3 sold out entirely.

Bought, Q2 2026 5 institutions, 4 of them new holders Sold, Q2 2026 8 institutions, 3 of them sold out

Net change, all compared −65K shares (−30.7%)

Net change, active managers −25K shares (−40.6%), 1 bought, 2 sold

Buyers versus sellers

institutions compared, 18

5 bought 5 8 sold

Active managers and hedge funds 1 bought · 2 sold · −25K

Index fund managers 0 bought · 2 sold · −42K

Other institutions 4 bought · 4 sold · +1,926

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
HRT Financial LP	+11K New position	11K	$37,000
UBS Group AG	+5,279 New position	5,279	$18,213
Royal Bank Of Canada	+1,379 New position	1,379	$5,000
Citadel Advisors LLC Hedge fund	+666 +2.9%	24K	$81,503
Barclays PLC	+5 New position	5	$17

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Citadel Advisors LLC Hedge fund	+666 +2.9%	24K	$81,503

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Vanguard Capital Management LLC Index funds	−23K −73.9%	8,165	$28,169
Geode Capital Management, LLC Index funds	−19K −50.5%	19K	$65,382
Centiva Capital, LP Hedge fund	−16K Sold out	0	—
Xtx Topco Ltd	−13K Sold out	0	—
Millennium Management LLC Hedge fund	−9,285 −42.3%	13K	$43,777
Tower Research Capital LLC (TRC)	−1,447 −99.8%	3	$10
Osaic Holdings, Inc.	−780 −72.2%	300	$1,035
Morgan Stanley	−268 Sold out	0	—

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Centiva Capital, LP Hedge fund	−16K Sold out	0	—
Millennium Management LLC Hedge fund	−9,285 −42.3%	13K	$43,777

New positions

largest by value

Institution	Shares	Value June 30, 2026
HRT Financial LP	11K	$37,000
UBS Group AG	5,279	$18,213
Royal Bank Of Canada	1,379	$5,000
Barclays PLC	5	$17

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Centiva Capital, LPHedge fund	16K	$62,601
Xtx Topco Ltd	13K	$50,863
Morgan Stanley	268	$1,009

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 15
Ten largest holders: 99.7%
Index fund managers: 21.7%
Active managers and hedge funds: 24.7%

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	1	2	0	1	−25K	−40.6%
Index fund managers	0	2	0	0	−42K	−57.0%
Other institutions	4	4	4	2	+1,926	+2.5%

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.

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