AYTU BIOPHARMA, INC - AYTU
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nantahala Capital Management, LLC | History | No change | 1,086,812 | 2,966 | 0.11% | 0.09% | 1 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Stonepine Capital Management, LLC | History | Reduced | 792,289 | 2,162 | 0.87% | 1.54% | 2 | -21,415 | -2.63% | Q1 2026 | May 14, 2026 |
| AWM Investment Company, Inc. | History | No change | 619,574 | 1,691 | 0.19% | 0.16% | 3 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| DIADEMA PARTNERS LP | History | Added to | 353,077 | 963 | 0.16% | 0.14% | 4 | +47,289 | 15.46% | Q1 2026 | May 15, 2026 |
| VANGUARD GROUP INC | History | No change | 278,583 | 724 | 0.0% | 0.0% | 5 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | New | 261,146 | 712 | 0.0% | — | 6 | +261,146 | New | Q1 2026 | May 15, 2026 |
| CROWN ADVISORS MANAGEMENT, INC. | History | New | 145,000 | 395 | 0.26% | — | 7 | +145,000 | New | Q1 2026 | May 07, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Added to | 121,973 | 332 | 0.0% | 0.0% | 8 | +14,840 | 13.85% | Q1 2026 | May 15, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Added to | 93,723 | 255 | 0.0% | 0.0% | 9 | +4,100 | 4.57% | Q1 2026 | May 14, 2026 |
| Persistent Asset Partners Ltd | History | Added to | 92,897 | 253 | 0.09% | 0.09% | 10 | +13,482 | 16.98% | Q1 2026 | May 12, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 92,636 | 252 | 0.0% | 0.0% | 11 | +18,539 | 25.02% | Q1 2026 | May 15, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | New | 47,048 | 128 | 0.0% | — | 12 | +47,048 | New | Q1 2026 | May 08, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | Added to | 43,585 | 118 | 0.0% | 0.0% | 13 | +8,222 | 23.25% | Q1 2026 | May 07, 2026 |
| TWO SIGMA ADVISERS, LP | History | No change | 42,500 | 110 | 0.0% | 0.0% | 14 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| CITADEL ADVISORS LLC | History | Added to | 36,841 | 100 | 0.0% | 0.0% | 15 | +21,290 | 136.9% | Q1 2026 | May 15, 2026 |
| BELLEVUE ASSET MANAGEMENT, LLC | History | No change | 25,013 | 68 | 0.03% | 0.02% | 16 | 0 | 0.0% | Q1 2026 | Apr 24, 2026 |
| BlackRock, Inc. | History | No change | 22,793 | 62 | 0.0% | 0.0% | 17 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| XTX Topco Ltd | History | Reduced | 21,582 | 58 | 0.0% | 0.0% | 18 | -4,278 | -16.54% | Q1 2026 | May 15, 2026 |
| NORTHERN TRUST CORP | History | No change | 19,169 | 52 | 0.0% | 0.0% | 19 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| PERRITT CAPITAL MANAGEMENT INC | History | No change | 20,000 | 52 | 0.09% | 0.09% | 20 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | No change | 10,237 | 27 | 0.0% | 0.0% | 21 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| Daytona Street Capital LLC | History | No change | 10,000 | 26 | 0.02% | 0.02% | 22 | 0 | 0.0% | Q1 2026 | Apr 10, 2026 |
| MAI Capital Management | History | No change | 3,575 | 9 | 0.0% | 0.0% | 23 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| UBS Group AG | History | Reduced | 1,663 | 4 | 0.0% | 0.0% | 25 | -1,386 | -45.46% | Q1 2026 | May 05, 2026 |
| Tower Research Capital LLC (TRC) | History | Reduced | 1,564 | 4 | 0.0% | 0.0% | 24 | -149 | -8.7% | Q1 2026 | May 15, 2026 |
| OSAIC HOLDINGS, INC. | History | Added to | 462 | 1 | 0.0% | 0.0% | 26 | +2 | 0.43% | Q1 2026 | May 15, 2026 |
| FNY Investment Advisers, LLC | History | Reduced | 90 | 0 | — | 0.02% | — | -31,510 | -99.72% | Q1 2026 | Apr 15, 2026 |
| DRW Securities, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -29,368 | -100.0% | Q1 2026 | May 13, 2026 |
| Rothschild Wealth LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -20,000 | -100.0% | Q1 2026 | May 06, 2026 |
| JPMORGAN CHASE & CO | History | New | 154 | 0 | — | — | — | +154 | New | Q1 2026 | May 13, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Closed out | 0 | 0 | — | — | — | -85 | -100.0% | Q1 2026 | May 15, 2026 |
| ROYAL BANK OF CANADA | History | Added to | 36 | 0 | — | — | — | +11 | 44.0% | Q1 2026 | May 15, 2026 |
| Rockefeller Capital Management L.P. | History | New | 10 | 0 | — | — | — | +10 | New | Q1 2026 | May 14, 2026 |
| Caitong International Asset Management Co., Ltd | History | New | 2 | 0 | — | — | — | +2 | New | Q1 2026 | May 11, 2026 |
| CITIGROUP INC | History | Closed out | 0 | 0 | — | — | — | -1 | -100.0% | Q1 2026 | May 11, 2026 |
| WELLS FARGO & COMPANY/MN | History | No change | 127 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 11, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | No change | 1 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| MORGAN STANLEY | History | No change | 125 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| GROUP ONE TRADING LLC | History | No change | 37 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | No change | 23 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 12, 2026 |
| CIBC Private Wealth Group LLC | History | No change | 83 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| VISION FINANCIAL MARKETS LLC | History | No change | 2 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | Apr 24, 2026 |
| NewEdge Advisors, LLC | History | No change | 21 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | Jun 02, 2026 |
| TSFG, LLC | History | No change | 1 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | Apr 27, 2026 |
| SBI Securities Co., Ltd. | History | No change | 11 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | Apr 27, 2026 |