Aytu Biopharma, Inc (AYTU) Insider Ownership

Historic Insider Ownership Trends

Aytu Biopharma's three largest insider shareholders as of March 23, 2026 are Capital, Llc Armistice (Director, 1.34Mn shares), Michael Macaluso (Director, 208.08K shares), Joshua R. Disbrow (Chief Executive Officer, 207.20K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Capital, Llc Armistice 1,342,378 0 10 May, 2021
Michael Macaluso 208,079 0 16 Apr, 2021
Joshua R. Disbrow Chief Executive Officer 207,203 0 07 Oct, 2025
Mark K Oki Chief Financial Officer 190,000 0 28 Nov, 2022
Gary Cantrell 164,089 0 23 Dec, 2022
Richard I Eisenstadt Chief Financial Officer 68,734 0 05 Apr, 2021
Jarrett Disbrow Chief Business Officer 61,568 0 07 Oct, 2025
Ryan J Selhorn Chief Financial Officer 49,743 0 07 Oct, 2025
Greg Pyszczymuka Chief Commercial Officer 36,102 0 07 Oct, 2025
Gerald W. Mclaughlin 31,401 0 12 Apr, 2021
Carl Dockery 20,440 0 07 Oct, 2025
Vivian H Liu 19,825 0 07 Oct, 2025
Abhinav Jain 19,500 0 07 Oct, 2025
John Jr. Donofrio 13,762 0 07 Oct, 2025
Beth Hecht 9,052 0 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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
03 Oct, 2025 Ryan J Selhorn Common Stock A 16,243 $0.00 32,243 D A
03 Oct, 2025 John Jr. Donofrio Common Stock A 10,000 $0.00 13,762 D A
03 Oct, 2025 Carl Dockery Common Stock A 10,000 $0.00 20,440 D A
03 Oct, 2025 Vivian H Liu Common Stock A 10,000 $0.00 19,825 D A
03 Oct, 2025 Jarrett Disbrow Common Stock A 19,606 $0.00 49,068 D A
03 Oct, 2025 Greg Pyszczymuka Common Stock A 12,500 $0.00 36,102 D A
03 Oct, 2025 Joshua R. Disbrow Common Stock A 31,446 $0.00 184,703 D A
03 Oct, 2025 Abhinav Jain Common Stock A 10,000 $0.00 19,500 D A
03 Oct, 2025 Joshua R. Disbrow Common Stock A 22,500 $0.00 207,203 D A
03 Oct, 2025 Jarrett Disbrow Common Stock A 12,500 $0.00 61,568 D A
03 Oct, 2025 Ryan J Selhorn Common Stock A 17,500 $0.00 49,743 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
06 Jun, 2025 Capital Management, Llc Nantahala Prefunded Warrants A 4,000,000 $1.50 4,815,217 I P
31 Mar, 2025 Greg Pyszczymuka Common Shares A 209 - 23,602 D M
31 Mar, 2025 Greg Pyszczymuka Restricted Stock Units D 209 $0.00 0 D M
05 Feb, 2025 Ryan J Selhorn Common Shares A 105 - 16,000 D M
28 Feb, 2025 Joshua R. Disbrow Common Stock A 15,000 $1.30 86,591 D P
05 Feb, 2025 Ryan J Selhorn Restricted Stock Units D 105 $0.00 0 D M
31 Dec, 2024 Greg Pyszczymuka Common Shares A 208 - 23,393 D M