Data spanning the past 90 days through February 07, 2026 reveals that Aytu Biopharma's three principal insider shareholders consist of Chief Executive Officer Joshua R. Disbrow (207.20K shares), Chief Business Officer Jarrett Disbrow (61.57K shares), Chief Financial Officer Ryan J Selhorn (49.74K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Michael Macaluso | 10,404 | 16 Apr, 2021 | |
| Joshua R. Disbrow | Chief Executive Officer | 207,203 | 07 Oct, 2025 |
| Mark K Oki | Chief Financial Officer | 9,500 | 28 Nov, 2022 |
| Gary Cantrell | 8,204 | 23 Dec, 2022 | |
| Richard I Eisenstadt | Chief Financial Officer | 3,437 | 05 Apr, 2021 |
| Jarrett Disbrow | Chief Business Officer | 61,568 | 07 Oct, 2025 |
| Ryan J Selhorn | Chief Financial Officer | 49,743 | 07 Oct, 2025 |
| Greg Pyszczymuka | Chief Commercial Officer | 36,102 | 07 Oct, 2025 |
| Gerald W. Mclaughlin | 1,570 | 12 Apr, 2021 | |
| Carl Dockery | 20,440 | 07 Oct, 2025 | |
| Vivian H Liu | 19,825 | 07 Oct, 2025 | |
| Abhinav Jain | 19,500 | 07 Oct, 2025 | |
| John Jr. Donofrio | 13,762 | 07 Oct, 2025 | |
| Beth Hecht | 453 | 12 Apr, 2021 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 03 Oct, 2025 | Vivian H Liu | Common Stock | A | 10,000 | $0.00 | 19,825 | D | A |
| 03 Oct, 2025 | Joshua R. Disbrow | Common Stock | A | 22,500 | $0.00 | 207,203 | D | A |
| 03 Oct, 2025 | Joshua R. Disbrow | Common Stock | A | 31,446 | $0.00 | 184,703 | D | A |
| 03 Oct, 2025 | Carl Dockery | Common Stock | A | 10,000 | $0.00 | 20,440 | D | A |
| 03 Oct, 2025 | Jarrett Disbrow | Common Stock | A | 12,500 | $0.00 | 61,568 | D | A |
| 03 Oct, 2025 | Jarrett Disbrow | Common Stock | A | 19,606 | $0.00 | 49,068 | D | A |
| 03 Oct, 2025 | Ryan J Selhorn | Common Stock | A | 16,243 | $0.00 | 32,243 | D | A |
| 03 Oct, 2025 | Ryan J Selhorn | Common Stock | A | 17,500 | $0.00 | 49,743 | D | A |
| 03 Oct, 2025 | John Jr. Donofrio | Common Stock | A | 10,000 | $0.00 | 13,762 | D | A |
| 03 Oct, 2025 | Greg Pyszczymuka | Common Stock | A | 12,500 | $0.00 | 36,102 | D | A |
| 03 Oct, 2025 | Abhinav Jain | Common Stock | A | 10,000 | $0.00 | 19,500 | D | A |
| 09 Jun, 2025 | Joshua R. Disbrow | Common Stock | A | 66,666 | $1.50 | 153,257 | D | P |
| 09 Jun, 2025 | Jarrett Disbrow | Common Stock | A | 16,666 | $1.50 | 29,462 | D | P |
| 31 Mar, 2025 | Greg Pyszczymuka | Common Shares | A | 209 | - | 23,602 | D | M |
| 31 Mar, 2025 | Greg Pyszczymuka | - | - | 23,602 | D | |||
| 28 Feb, 2025 | Joshua R. Disbrow | Common Stock | A | 15,000 | $1.30 | 86,591 | D | P |
| 05 Feb, 2025 | Ryan J Selhorn | - | - | 16,000 | D | |||
| 05 Feb, 2025 | Ryan J Selhorn | Common Shares | A | 105 | - | 16,000 | D | M |
| 31 Dec, 2024 | Greg Pyszczymuka | Common Shares | A | 208 | - | 23,393 | D | M |
| 11 Nov, 2024 | Ryan J Selhorn | Common Shares | A | 14,000 | $0.00 | 15,895 | D | A |