As of September 29, 2026, Aytu Biopharma's top three insider holders are Joshua R. Disbrow (Chief Executive Officer, 237.20K shares), Jarrett Disbrow (Chief Business Officer, 76.57K shares), Ryan J Selhorn (Chief Financial Officer, 74.74K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Joshua R. Disbrow | Chief Executive Officer | 308,794 | 0 | 308,794 | 43.9% | 30 Jul, 2026 |
| 2 | Ryan J Selhorn | Chief Financial Officer | 90,743 | 0 | 90,743 | 12.9% | 30 Jul, 2026 |
| 3 | Greg Pyszczymuka | Chief Commercial Officer | 79,704 | 0 | 79,704 | 11.3% | 30 Jul, 2026 |
| 4 | Jarrett Disbrow | Chief Business Officer | 76,568 | 0 | 76,568 | 10.9% | 30 Jul, 2026 |
| 5 | Carl Dockery | Director | 41,592 | 0 | 41,592 | 5.9% | 30 Jul, 2026 |
| 6 | Vivian H Liu | Director | 39,650 | 0 | 39,650 | 5.6% | 30 Jul, 2026 |
| 7 | Abhinav Jain | Director | 39,000 | 0 | 39,000 | 5.5% | 30 Jul, 2026 |
| 8 | John Jr. Donofrio | Director | 27,524 | 0 | 27,524 | 3.9% | 30 Jul, 2026 |
| 9 | Mark K Oki | Chief Financial Officer | 0 | 0 | 0 | 0.0% | 28 Nov, 2022 |
| 10 | Gary Cantrell | Director | 0 | 0 | 0 | 0.0% | 23 Dec, 2022 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 28 Jul, 2026 | Jarrett Disbrow | Chief Business Officer | Acquired A | 15,000 | $0.00 | $0 | 76,568 | Direct |
| 28 Jul, 2026 | John Jr. Donofrio | Director | Acquired A | 10,000 | $0.00 | $0 | 23,762 | Direct |
| 28 Jul, 2026 | Abhinav Jain | Director | Acquired A | 10,000 | $0.00 | $0 | 29,500 | Direct |
| 28 Jul, 2026 | Vivian H Liu | Director | Acquired A | 10,000 | $0.00 | $0 | 29,825 | Direct |
| 28 Jul, 2026 | Joshua R. Disbrow | Chief Executive Officer | Acquired A | 30,000 | $0.00 | $0 | 237,203 | Direct |
| 28 Jul, 2026 | Ryan J Selhorn | Chief Financial Officer | Acquired A | 25,000 | $0.00 | $0 | 74,743 | Direct |
| 28 Jul, 2026 | Carl Dockery | Director | Acquired A | 10,000 | $0.00 | $0 | 31,152 | Direct |
| 28 Jul, 2026 | Greg Pyszczymuka | Chief Commercial Officer | Acquired A | 20,000 | $0.00 | $0 | 56,102 | Direct |
| 03 Oct, 2025 | Jarrett Disbrow | Chief Business Officer | Acquired A | 19,606 | $0.00 | $0 | 49,068 | Direct |
| 03 Oct, 2025 | Greg Pyszczymuka | Chief Commercial Officer | Acquired A | 12,500 | $0.00 | $0 | 36,102 | Direct |
| 03 Oct, 2025 | Abhinav Jain | Director | Acquired A | 10,000 | $0.00 | $0 | 19,500 | Direct |
| 03 Oct, 2025 | Vivian H Liu | Director | Acquired A | 10,000 | $0.00 | $0 | 19,825 | Direct |
| 03 Oct, 2025 | Ryan J Selhorn | Chief Financial Officer | Acquired A | 16,243 | $0.00 | $0 | 32,243 | Direct |
| 03 Oct, 2025 | John Jr. Donofrio | Director | Acquired A | 10,000 | $0.00 | $0 | 13,762 | Direct |
| 03 Oct, 2025 | Carl Dockery | Director | Acquired A | 10,000 | $0.00 | $0 | 20,440 | Direct |
| 03 Oct, 2025 | Joshua R. Disbrow | Chief Executive Officer | Acquired A | 31,446 | $0.00 | $0 | 184,703 | Direct |
| 03 Oct, 2025 | Ryan J Selhorn | Chief Financial Officer | Acquired A | 17,500 | $0.00 | $0 | 49,743 | Direct |
| 03 Oct, 2025 | Jarrett Disbrow | Chief Business Officer | Acquired A | 12,500 | $0.00 | $0 | 61,568 | Direct |
| 03 Oct, 2025 | Joshua R. Disbrow | Chief Executive Officer | Acquired A | 22,500 | $0.00 | $0 | 207,203 | Direct |
| 09 Jun, 2025 | Joshua R. Disbrow | Chief Executive Officer | Acquired P | 66,666 | $1.50 | $100.00K | 153,257 | Direct |