Citius Oncology, Inc.: which funds bought and sold

Institutions that bought and sold Citius Oncology 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, 9 institutions that filed 13F reports for both quarters added to or opened positions in Citius Oncology, and 4 cut or closed them. Together they sold a net 102K shares, −0.7% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 393K shares (−4.3%); index fund managers were net sellers of 55K shares (−5.2%). 7 opened a new position and 1 sold out entirely.

Bought, Q2 2026 9 institutions, 7 of them new holders Sold, Q2 2026 4 institutions, 1 of them sold out

Net change, all compared −102K shares (−0.7%)

Net change, active managers −393K shares (−4.3%), 1 bought, 1 sold

Buyers versus sellers

institutions compared, 20

9 bought 7 4 sold

Active managers and hedge funds 1 bought · 1 sold · −393K

Index fund managers 1 bought · 2 sold · −55K

Other institutions 7 bought · 1 sold · +346K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
UBS Group AG	+298K +808.3%	335K	$217,502
Citadel Advisors LLC Hedge fund	+91K New position	91K	$58,890
Virtu Financial LLC	+22K New position	22K	$14,000
Xtx Topco Ltd	+21K New position	21K	$13,417
Tower Research Capital LLC (TRC)	+14K New position	14K	$8,982
Vanguard Capital Management LLC Index funds	+12K +2.2%	546K	$355,111
Wells Fargo & Company	+500 New position	500	$325
Barclays PLC	+90 New position	90	$59
Morgan Stanley	+23 New position	23	$15

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Citadel Advisors LLC Hedge fund	+91K New position	91K	$58,890

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Armistice Capital, LLC Hedge fund	−483K −5.3%	8.7M	$5.7M
Blackrock, Inc. Index funds	−47K Sold out	0	—
Geode Capital Management, LLC Index funds	−19K −7.3%	245K	$159,538
Osaic Holdings, Inc.	−9,125 −90.1%	1,000	$650

New positions

largest by value

Institution	Shares	Value June 30, 2026
Citadel Advisors LLCHedge fund	91K	$58,890
Virtu Financial LLC	22K	$14,000
Xtx Topco Ltd	21K	$13,417
Tower Research Capital LLC (TRC)	14K	$8,982
Wells Fargo & Company	500	$325
Barclays PLC	90	$59
Morgan Stanley	23	$15

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Blackrock, Inc.Index funds	47K	$29,417

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 19
Ten largest holders: 99.5%
Index fund managers: 7.1%
Active managers and hedge funds: 62.2%

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	1	1	0	−393K	−4.3%
Index fund managers	1	2	0	1	−55K	−5.2%
Other institutions	7	1	6	0	+346K	+8.6%

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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