JUNS JUPITER NEUROSC
JUPITER NEUROSC (JUNS) Institutional Ownership
What the institutions did with JUNS last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| JANE STREET GROUP, LLC | 533.4K | 42.5% |
| Virtu Financial LLC | 231.2K | 18.4% |
| GEODE CAPITAL MANAGEMENT, LLC | 156.1K | 12.4% |
| VANGUARD CAPITAL MANAGEMENT LLC | 128.0K | 10.2% |
| VANGUARD FIDUCIARY TRUST CO | 84.2K | 6.7% |
| XTX Topco Ltd | 32.8K | 2.6% |
| Tower Research Capital LLC (TRC) | 28.8K | 2.3% |
| NORTHERN TRUST CORP | 25.3K | 2.0% |
| StoneX Group Inc. | 20.6K | 1.6% |
| LEVEL FOUR ADVISORY SERVICES, LLC | 10.0K | 0.8% |
| VESTOR CAPITAL, LLC | 2.2K | 0.2% |
| MidFirst Bank | 1.0K | 0.1% |
| CITIGROUP INC | 546 | 0.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| VESTOR CAPITAL, LLC | Reduced | 971.0K | 2.2K | -968.8K |
| JANE STREET GROUP, LLC | New | 0 | 533.4K | +533.4K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 359.9K | 128.0K | -231.9K |
| Virtu Financial LLC | Increased | 13.6K | 231.2K | +217.7K |
| Yorkville Advisors Global, LP | Sold Out | 129.0K | 0 | -129.0K |
| CITADEL ADVISORS LLC | Sold Out | 101.7K | 0 | -101.7K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 211.7K | 156.1K | -55.6K |
| XTX Topco Ltd | New | 0 | 32.8K | +32.8K |
| Tower Research Capital LLC (TRC) | New | 0 | 28.8K | +28.8K |
| StoneX Group Inc. | New | 0 | 20.6K | +20.6K |
| LEVEL FOUR ADVISORY SERVICES, LLC | New | 0 | 10.0K | +10.0K |
| UBS Group AG | Sold Out | 3.9K | 0 | -3.9K |
| VANGUARD FIDUCIARY TRUST CO | Reduced | 87.8K | 84.2K | -3.6K |
| CITIGROUP INC | New | 0 | 546 | +546 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.