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Citius Oncology, Inc. (CTOR) institutional ownership

Latest close $0.57 Jul 22, 2026
Market cap$161M 52-week range SectorHealthcare
Funds holding · Q1 2026
16
reported CTOR position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
9 buyers · 7 sellers

Citius Oncology, Inc. (CTOR) price and institutional activity

Dates

Q1 2026

$0 bought by 9 investors
Bank of America CorpArmistice Capital, LLC +7 more
$0 sold by 7 investors
Omers Administration CorpXtx Topco Ltd +5 more
Bought Sold Totals per quarter; hover a bar for the names.

Citius Oncology, Inc. (CTOR) institutional activity · 16

Investor Type Est. change Change Δ Own Date
Bank of America Corp · Added
Change +3.8M Date Q1 2026
Bank of America Corp Added· Q1 2026 +3.8M Q1 2026
Armistice Capital, LLC · Added
Change +3.6M Date Q1 2026
Armistice Capital, LLC Added· Q1 2026 +3.6M Q1 2026
Omers Administration Corp · Exited
Change −104K Δ Own −100.0% Date Q1 2026
Omers Administration Corp Exited· Q1 2026 −104K −100.0% Q1 2026
Xtx Topco Ltd · Exited
Change −74K Δ Own −100.0% Date Q1 2026
Xtx Topco Ltd Exited· Q1 2026 −74K −100.0% Q1 2026
Vanguard · Added
Change +60K Date Q1 2026
Vanguard Added· Q1 2026 +60K Q1 2026
Geode · Added
Change +45K Date Q1 2026
Geode Added· Q1 2026 +45K Q1 2026
BlackRock · Added
Change +25K Date Q1 2026
BlackRock Added· Q1 2026 +25K Q1 2026
Two Sigma Investments, LP · Exited
Change −24K Δ Own −100.0% Date Q1 2026
Two Sigma Investments, LP Exited· Q1 2026 −24K −100.0% Q1 2026
Ifp Advisors, Inc · Added
Change +20K Date Q1 2026
Ifp Advisors, Inc Added· Q1 2026 +20K Q1 2026
UBS Group AG · Added
Change +15K Date Q1 2026
UBS Group AG Added· Q1 2026 +15K Q1 2026
Two Sigma Securities, LLC · Exited
Change −13K Δ Own −100.0% Date Q1 2026
Two Sigma Securities, LLC Exited· Q1 2026 −13K −100.0% Q1 2026
Versant Capital Management, Inc · Exited
Change −2K Δ Own −100.0% Date Q1 2026
Versant Capital Management, Inc Exited· Q1 2026 −2K −100.0% Q1 2026
Osaic Holdings, Inc. · Reduced
Change −1K Date Q1 2026
Osaic Holdings, Inc. Reduced· Q1 2026 −1K Q1 2026
Royal Bank of Canada · Added
Change +163 Date Q1 2026
Royal Bank of Canada Added· Q1 2026 +163 Q1 2026
Farther Finance Advisors, LLC · Exited
Change −3 Δ Own −100.0% Date Q1 2026
Farther Finance Advisors, LLC Exited· Q1 2026 −3 −100.0% Q1 2026
Data through Q1 2026 · filed May 18, 2026
15 of 16

Famous investor activity in Citius Oncology, Inc. (CTOR)

Citius Oncology, Inc. (CTOR) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Holubiak Myron Z. · Director, Officer 2 operations 950K
Owned 100K Trade date Sep 19, 2025 Filed date Sep 23, 2025
Holubiak Myron Z. Director, Officer 2 operations 950K 100K Sep 19, 2025 Sep 23, 2025
Smith Robert Joseph · Director Grant (A) 300K
Owned 300K Trade date Sep 19, 2025 Filed date Sep 23, 2025
Smith Robert Joseph Director Grant (A) 300K 300K Sep 19, 2025 Sep 23, 2025
Mazur Leonard L. · Director, Officer Grant (A) 1.7M
Owned 1.7M Trade date Sep 19, 2025 Filed date Sep 23, 2025
Mazur Leonard L. Director, Officer Grant (A) 1.7M 1.7M Sep 19, 2025 Sep 23, 2025
Webb Carol · Director Grant (A) 300K
Owned 300K Trade date Sep 19, 2025 Filed date Sep 23, 2025
Webb Carol Director Grant (A) 300K 300K Sep 19, 2025 Sep 23, 2025
Czuczman Myron · Officer Grant (A) 825K
Owned 825K Trade date Sep 19, 2025 Filed date Sep 23, 2025
Czuczman Myron Officer Grant (A) 825K 825K Sep 19, 2025 Sep 23, 2025
McGrath Dennis M. · Director Grant (A) 300K
Owned 300K Trade date Sep 19, 2025 Filed date Sep 23, 2025
McGrath Dennis M. Director Grant (A) 300K 300K Sep 19, 2025 Sep 23, 2025
Bartushak Jaime · Officer Grant (A) 825K
Owned 825K Trade date Sep 19, 2025 Filed date Sep 23, 2025
Bartushak Jaime Officer Grant (A) 825K 825K Sep 19, 2025 Sep 23, 2025
Mayersohn Joel David · Director Grant (A) 300K
Owned 321K Trade date Sep 19, 2025 Filed date Sep 23, 2025
Mayersohn Joel David Director Grant (A) 300K 321K Sep 19, 2025 Sep 23, 2025
Dutia Suren G. · Director Grant (A) 300K
Owned 300K Trade date Sep 19, 2025 Filed date Sep 23, 2025
Dutia Suren G. Director Grant (A) 300K 300K Sep 19, 2025 Sep 23, 2025
Holuka Eugene Myron · Director Grant (A) 300K
Owned 300K Trade date Sep 19, 2025 Filed date Sep 23, 2025
Holuka Eugene Myron Director Grant (A) 300K 300K Sep 19, 2025 Sep 23, 2025
Mayersohn Joel David · Director Other Form 4 events 21K
Owned 21K Trade date Jul 28, 2025 Filed date Aug 7, 2025
Mayersohn Joel David Director Other Form 4 events 21K 21K Jul 28, 2025 Aug 7, 2025
11 of 11

Citius Oncology, Inc. (CTOR) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Citius Pharmaceuticals, Inc. 66.0M
% of shares outstanding 92.6% Filing date Aug 16, 2024
Citius Pharmaceuticals, Inc. 66.0M 92.6% Aug 16, 2024
Citius Pharmaceuticals, Inc. 66.0M
% of shares outstanding 77.9% Filing date Dec 17, 2025
Citius Pharmaceuticals, Inc. 66.0M 77.9% Dec 17, 2025
Armistice Capital, LLC 9.3M
% of shares outstanding 10.0% Filing date May 15, 2026
Armistice Capital, LLC 9.3M 10.0% May 15, 2026
Mizuho Financial Group Inc 522K
% of shares outstanding 5.8% Filing date Feb 13, 2024
Mizuho Financial Group Inc 522K 5.8% Feb 13, 2024
10xyz Holdings LP 3
% of shares outstanding 4.3% Filing date Aug 15, 2024
10xyz Holdings LP 3 4.3% Aug 15, 2024
Feis Lawrence 339K
% of shares outstanding 3.8% Filing date Feb 14, 2023
Feis Lawrence 339K 3.8% Feb 14, 2023
Hudson Bay Capital Management LP 0
% of shares outstanding 0.0% Filing date Nov 6, 2024
Hudson Bay Capital Management LP 0 0.0% Nov 6, 2024
Wolverine Asset Management LLC 0
% of shares outstanding 0.0% Filing date Sep 5, 2024
Wolverine Asset Management LLC 0 0.0% Sep 5, 2024
8 of 10

Citius Oncology, Inc. (CTOR) ownership FAQ

Who owns CTOR?

16 reporting institutions disclosed CTOR position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.