Aytu BioPharma
Commercializer of prescription medicines for depression, ADHD, and pediatric conditions.
$2.25
After-hours close0.00 (0.00%)
At close$2.25(+0.45%)
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Breakdown13F · Form 4
Institutions 36.83%3.95M sharesInsiders 5.21%558.9K sharesOther 57.96%6.22M shares
Shares outstanding 10.73M · Float 9.77M · 91.0% free float
Institutions13F, as of Mar 31, 2026
35 holders · 3.95M shares · 7 new positions · 15 increased · 4 reduced · 9 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Nantahala Capital Management, LLC | 1.09M | 10.13% | 0 | May 15, 2026 |
| Stonepine Capital Management, LLC | 792.3K | 7.38% | −21.4K | May 14, 2026 |
| Awm Investment Company, Inc. | 619.6K | 5.77% | 0 | May 15, 2026 |
| Diadema Partners LP | 353.1K | 3.29% | +47.3K | May 15, 2026 |
| Vanguard Capital Management LLC | 261.1K | 2.43% | +261.1Knew | May 15, 2026 |
| Crown Advisors Management, Inc. | 145.0K | 1.35% | +145.0Knew | May 8, 2026 |
| Two Sigma Investments, LP | 122.0K | 1.14% | +14.8K | May 15, 2026 |
| Renaissance Technologies LLC | 93.7K | 0.87% | +4.1K | May 14, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Nantahala Capital Management, LLCincl. Harkey Wilmot B., Mack Daniel | 14.40% | 1.09M | 13D | Jun 9, 2025 ↗ |
| Lytton Laurence W | 9.99% | 1.07M | 13G | Feb 17, 2026 ↗ |
| Stonepine Capital Management, LLC | 9.90% | 906.1K | 13G | Aug 13, 2025 ↗ |
| AWM Investment Company, Inc. | 5.80% | 619.6K | 13G | Feb 13, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Joshua R. Disbrow | director, officer: Chief Executive Officer | 237.2K | 2.21% | Jul 30, 2026 |
| Jarrett Disbrow | officer: Chief Business Officer | 76.6K | 0.71% | Jul 30, 2026 |
| Ryan J. Selhorn | officer: Chief Financial Officer | 74.7K | 0.70% | Jul 30, 2026 |
| Greg Pyszczymuka | officer: Chief Commercial Officer | 56.1K | 0.52% | Jul 30, 2026 |
| Carl Dockery | director | 31.2K | 0.29% | Jul 30, 2026 |
| Vivian H. Liu | director | 29.8K | 0.28% | Jul 30, 2026 |
| Abhinav Jain | director | 29.5K | 0.27% | Jul 30, 2026 |
| John Jr. Donofrio | director | 23.8K | 0.22% | Jul 30, 2026 |
5 ten-percent owners hold 1.14M shares by Form 4, outside the officers-and-directors figure above · 11 people have not refiled in the last 18 months (159.0K shares), so they are not in the figure above
Latest trades
No open-market trades in the last 12 months.
CongressHouse and Senate disclosures
Not reported.