Citius Oncology, Inc. is a pharmaceutical preparations company on XNAS, led by Leonard Mazur, with a market cap of $95.8M. As of Q3 2025, 10% of shares are held by 16 institutional investors, with ARMISTICE CAPITAL, LLC as the largest holder at 9.19%.
Overview of institutional ownership in CTOR as of Q3 2025 with a market cap of $169.5M
Based on market cap of $169.5M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Institutions with the largest positions in CTOR as of Q3 2025
| Institution | Position Value |
|---|---|
ARMISTICE CAPITAL, LLC Hedge Fund•Long/Short | $15.6M 0.49% of portfolio |
VANGUARD GROUP INC Institution | $365.7K 0.00% of portfolio |
GEODE CAPITAL MANAGEMENT LLC ETF Provider | $339.4K 0.00% of portfolio |
X XTX Topco Ltd Institution | $257.6K 0.01% of portfolio |
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | $113.5K 0.00% of portfolio |
STATE STREET CORP Institution | $87.1K 0.00% of portfolio |
IFP Advisors, Inc RIA/Wealth | $67.4K 0.00% of portfolio |
NORTHERN TRUST CORP Institution | $44.2K 0.00% of portfolio |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $35.9K 0.00% of portfolio |
A Advisor Group Holdings, Inc. Institution | $25.2K 0.00% of portfolio |
Institutional buying and selling activity for CTOR in Q3 2025
| Institution | Net Bought |
|---|---|
ARMISTICE CAPITAL, LLC Hedge Fund•Long/Short | +$15.6M +7.7M shares |
VANGUARD GROUP INC Institution | +$365.7K +180.2K shares |
X XTX Topco Ltd Institution | +$257.6K +126.9K shares |
GEODE CAPITAL MANAGEMENT LLC ETF Provider | +$223.0K +109.9K shares |
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | +$113.5K +55.9K shares |
STATE STREET CORP Institution | +$87.1K +42.9K shares |
NORTHERN TRUST CORP Institution | +$44.2K +21.8K shares |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | +$35.9K +17.7K shares |
T Tower Research Capital LLC Institution | +$24.0K +11.8K shares |
IFP Advisors, Inc RIA/Wealth | +$22.3K +11.0K shares |
| Institution | Net Sold |
|---|---|
J JANE STREET GROUP, LLC Institution | −$465.3K −107.0K shares |
Institutions that initiated new positions or completely exited CTOR in Q3 2025
| Institution | Position Value |
|---|---|
ARMISTICE CAPITAL, LLC Hedge Fund•Long/Short | $15.6M 7.7M shares |
VANGUARD GROUP INC Institution | $365.7K 180.2K shares |
STATE STREET CORP Institution | $87.1K 42.9K shares |
NORTHERN TRUST CORP Institution | $44.2K 21.8K shares |
MORGAN STANLEY RIA/Wealth | $10.0 5.0 shares |
Farther Finance Advisors, LLC RIA/Wealth | $6.0 3.0 shares |
| Institution | Previous Position |
|---|---|
J JANE STREET GROUP, LLC Institution | $465.3K 107.0K shares |
Institutions with the largest Call and Put options positions in CTOR as of Q3 2025
| Institution | Position Value |
|---|---|
| No call positions found | |
| Institution | Position Value |
|---|---|
| No put positions found | |
Institutions with CTOR as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
ARMISTICE CAPITAL, LLC Hedge Fund•Long/Short | 0.49% $15.6M |
X XTX Topco Ltd Institution | 0.01% $257.6K |
IFP Advisors, Inc RIA/Wealth | 0.00% $67.4K |
T Tower Research Capital LLC Institution | 0.00% $24.0K |
Arkadios Wealth Advisors RIA/Wealth | 0.00% $23.7K |
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant | 0.00% $113.5K |
A Advisor Group Holdings, Inc. Institution | 0.00% $25.2K |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | 0.00% $35.9K |
GEODE CAPITAL MANAGEMENT LLC ETF Provider | 0.00% $339.4K |
NORTHERN TRUST CORP Institution | 0.00% $44.2K |
Discover hedge funds investing in CTOR

| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
Software - Infrastructure Technology | $2.1B | 1.68% | |
Semiconductors Technology | $1.8B | 1.50% | |
Internet Content & Information Communication Services | $1.4B | 1.18% |
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