Aytu BiopharmaAYTU
13F holders, Q1 2026 (March 31)At the end of Q1 2026, 37 institutions reported holding Aytu Biopharma Inc. (AYTU) in their 13F filings, down 2 from Q4 2025. 4 opened new positions and 4 sold out. The largest holders were Nantahala Capital Management, LLC ($3.0M), Stonepine Capital Management, LLC ($2.2M) and AWM Investment Company, Inc. ($1.7M). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Aytu Biopharma Inc.
- CUSIP
- 054754858
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $395K |
| Exits | 4 | $129K |
All 13F filers, Q4 2025 → Q1 2026: 272,941 shares bought and 108,192 shares sold, net +164,749 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 37 holders
| Nantahala Capital Management, LLC | 0.19% | No change | 1,086,812 | $3.0M |
| Stonepine Capital Management, LLC | 1.90% | Reduce -2.6% | 792,289 | $2.2M |
| AWM Investment Company, Inc. | 0.19% | No change | 619,574 | $1.7M |
| Diadema Partners LP | 0.40% | Add +15.5% | 353,077 | $964K |
| Vanguard Capital Management LLC | 0.00% | — | 261,146 | $713K |
| Crown Advisors Management, Inc. | 0.26% | New | 145,000 | $395K |
| Two Sigma Investments, LP | 0.00% | Add +13.8% | 121,973 | $333K |
| Renaissance Technologies | 0.00% | Add +4.6% | 93,723 | $256K |
| Persistent Asset Partners Ltd | 0.10% | Add +17.0% | 92,897 | $254K |
| Geode Capital Management, LLC | 0.00% | Add +25.0% | 92,636 | $253K |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 47,048 | $128K |
| Dimensional Fund Advisors LP | 0.00% | Add +23.3% | 43,585 | $119K |
| Citadel Advisors | 0.00% | Add +136.9% | 36,841 | $101K |
| Bellevue Asset Management, LLC | 0.03% | No change | 25,013 | $68K |
| BlackRock, Inc. | 0.00% | No change | 22,793 | $62K |
| XTX Topco Ltd | 0.00% | Reduce -16.5% | 21,582 | $59K |
| Northern Trust Corp. | 0.00% | No change | 19,169 | $52K |
| Acadian Asset Management LLC | 0.00% | No change | 10,237 | $27K |
| Daytona Street Capital LLC | 0.02% | No change | 10,000 | $27K |
| MAI Capital Management | 0.00% | No change | 3,575 | $10K |
| UBS Group AG | 0.00% | Reduce -45.5% | 1,663 | $5K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -8.7% | 1,564 | $4K |
| Osaic Holdings, Inc. | 0.00% | Add +0.4% | 462 | $1K |
| JPMorgan Chase & Co. | 0.00% | New | 154 | $405 |
| Wells Fargo & Company | 0.00% | No change | 127 | $347 |
| Morgan Stanley | 0.00% | No change | 125 | $341 |
| Group One Trading LLC | 0.00% | No change | 37 | $101 |
| BNP Paribas Financial Markets | 0.00% | No change | 23 | $63 |
| NewEdge Advisors, LLC | 0.00% | No change | 21 | $57 |
| SBI Securities Co., Ltd. | 0.00% | No change | 11 | $30 |
| Rockefeller Capital Management L.P. | 0.00% | New | 10 | $27 |
| Vision Financial Markets LLC | 0.00% | No change | 2 | $6 |
| Caitong International Asset Management Co., Ltd | 0.00% | New | 2 | $5 |
| Jones Financial Companies LLLP | 0.00% | No change | 1 | $3 |
| Royal Bank of Canada | 0.00% | Add +44.0% | 36 | $0 |
| FNY Investment Advisers, LLC | 0.00% | Reduce -99.7% | 90 | $0 |
| Tsfg, LLC | 0.00% | No change | 1 | $0 |
"% of holder's portfolio" is AYTU's weight in each manager's 13F, not the share of Aytu Biopharma Inc. the manager owns.