Onconetix, Inc. - Common Stock, par value $0.00001 per share (ONCO) Institutional Ownership

13F Institutional Holders and Ownership History from Q2 2025 to Q4 2025

Type / Class
Equity / Common Stock, par value $0.00001 per share
Symbol
ONCO on Nasdaq
Shares outstanding
763,212
Price per share
$1.45
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
61,061
Total reported value
$95,255
% of total 13F portfolios
0%
Share change
-36,596
Value change
-$101,471
Number of holders
7
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Onconetix, Inc. - Common Stock, par value $0.00001 per share (ONCO) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Altos Venture AG 36% $1,307,597 273,230 Altos Venture AG 14 Jul 2025

As of 31 Dec 2025, 7 institutional investors reported holding 61,061 shares of Onconetix, Inc. - Common Stock, par value $0.00001 per share (ONCO). This represents 8% of the company’s total 763,212 outstanding shares.

Institutional Holders of Onconetix, Inc. - Common Stock, par value $0.00001 per share (ONCO) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 61,061 $95,255 -$101,471 $1.56 7
2025 Q3 97,657 $303,713 +$266,011 $3.11 8
2025 Q2 9,012 $42,988 +$42,988 $4.77 7