MDAI Spectral AI, Inc.
Spectral AI, Inc. (MDAI) Institutional Ownership
What the institutions did with MDAI 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 |
|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | 994.4K | 14.4% |
| Highlander Partners, L.P. | 900.0K | 13.0% |
| MARSHALL WACE, LLP | 827.5K | 12.0% |
| LMR Partners LLP | 503.7K | 7.3% |
| ARISTEIA CAPITAL, L.L.C. | 359.9K | 5.2% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 287.0K | 4.2% |
| Clear Street Group Inc. | 233.4K | 3.4% |
| JANE STREET GROUP, LLC | 226.3K | 3.3% |
| UBS Group AG | 225.8K | 3.3% |
| GEODE CAPITAL MANAGEMENT, LLC | 222.6K | 3.2% |
| BlackRock, Inc. | 161.8K | 2.3% |
| LPL Financial LLC | 160.7K | 2.3% |
| VANGUARD FIDUCIARY TRUST CO | 142.7K | 2.1% |
| GOLDMAN SACHS GROUP INC | 123.6K | 1.8% |
| UNIVERSITY OF TEXAS/TEXAS AM INVESTMENT MANAGEMENT CO | 121.7K | 1.8% |
| TORONTO DOMINION BANK | 117.9K | 1.7% |
| Oasis Management Co Ltd. | 100.0K | 1.4% |
| MOORE CAPITAL MANAGEMENT, LP | 100.0K | 1.4% |
| Q Global Advisors, LLC | 99.7K | 1.4% |
| Rathbones Group PLC | 87.0K | 1.3% |
| Caption Management, LLC | 83.5K | 1.2% |
| Calamos Advisors LLC | 81.5K | 1.2% |
| STATE STREET CORP | 75.6K | 1.1% |
| TPG GP A, LLC | 75.0K | 1.1% |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 66.7K | 1.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| MARSHALL WACE, LLP | New | 0 | 827.5K | +827.5K |
| LMR Partners LLP | New | 0 | 503.7K | +503.7K |
| ARISTEIA CAPITAL, L.L.C. | New | 0 | 359.9K | +359.9K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 726.3K | 994.4K | +268.1K |
| Clear Street Group Inc. | New | 0 | 233.4K | +233.4K |
| LPL Financial LLC | New | 0 | 160.7K | +160.7K |
| GOLDMAN SACHS GROUP INC | New | 0 | 123.6K | +123.6K |
| TORONTO DOMINION BANK | New | 0 | 117.9K | +117.9K |
| UBS Group AG | Increased | 113.0K | 225.8K | +112.8K |
| MOORE CAPITAL MANAGEMENT, LP | New | 0 | 100.0K | +100.0K |
| Oasis Management Co Ltd. | New | 0 | 100.0K | +100.0K |
| Q Global Advisors, LLC | New | 0 | 99.7K | +99.7K |
| UNIVERSITY OF TEXAS/TEXAS AM INVESTMENT MANAGEMENT CO | Reduced | 210.5K | 121.7K | -88.8K |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | Increased | 199.0K | 287.0K | +88.0K |
| Rathbones Group PLC | Reduced | 174.1K | 87.0K | -87.0K |
| Caption Management, LLC | New | 0 | 83.5K | +83.5K |
| Calamos Advisors LLC | New | 0 | 81.5K | +81.5K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 301.2K | 222.6K | -78.6K |
| TPG GP A, LLC | New | 0 | 75.0K | +75.0K |
| TENOR CAPITAL MANAGEMENT Co., L.P. | New | 0 | 66.7K | +66.7K |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | New | 0 | 66.7K | +66.7K |
| Saba Capital Management, L.P. | New | 0 | 59.8K | +59.8K |
| Virtu Financial LLC | New | 0 | 41.0K | +41.0K |
| BlackRock, Inc. | Increased | 122.3K | 161.8K | +39.5K |
| Empery Asset Management, LP | New | 0 | 33.3K | +33.3K |
| HRT FINANCIAL LP | New | 0 | 22.4K | +22.4K |
| JPMORGAN CHASE & CO | New | 0 | 20.3K | +20.3K |
| NORTHERN TRUST CORP | Increased | 32.1K | 50.5K | +18.4K |
| ROYAL BANK OF CANADA | New | 0 | 15.5K | +15.5K |
| StoneX Group Inc. | New | 0 | 15.3K | +15.3K |
| Shay Capital LLC | Sold Out | 14.9K | 0 | -14.9K |
| CITIGROUP INC | Sold Out | 14.8K | 0 | -14.8K |
| Tower Research Capital LLC (TRC) | New | 0 | 12.1K | +12.1K |
| Engineers Gate Manager LP | New | 0 | 11.0K | +11.0K |
| N.E.W. Advisory Services LLC | Increased | 14.0K | 20.0K | +6.0K |
| XTX Topco Ltd | Increased | 27.1K | 32.9K | +5.8K |
| MORGAN STANLEY | Increased | 8.4K | 13.8K | +5.4K |
| JANE STREET GROUP, LLC | Increased | 221.0K | 226.3K | +5.3K |
| WOLVERINE ASSET MANAGEMENT LLC | Increased | 6.5K | 8.1K | +1.6K |
| Farther Finance Advisors, LLC | New | 0 | 1.0K | +1.0K |
| VANGUARD FIDUCIARY TRUST CO | Increased | 141.8K | 142.7K | +868 |
| BARCLAYS PLC | New | 0 | 328 | +328 |
| Concord Wealth Partners | New | 0 | 300 | +300 |
| Rockefeller Capital Management L.P. | New | 0 | 173 | +173 |
| LONGFELLOW INVESTMENT MANAGEMENT CO LLC | New | 0 | 100 | +100 |
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.