Security Snapshot

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

CUSIP: 68237Q203

13F Institutional Holders and Ownership History from Q2 2025 to Q1 2026

Latest Period

Q1 2026

Institutions Reporting

0

Shares (Excl. Options)

0

Price

$0.60

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Type / Class
Equity / Common Stock, par value $0.00001 per share
Symbol
ONCO on Nasdaq
Shares outstanding
763,212
Price per share
$0.60
All holders as of 31 Mar 2026
Q1 2026
Total 13F shares
0
Total reported value
$0
Share change
-61,050
Value change
-$95,238
Number of holders
0
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Quick Takeaways

  • ONCO - Onconetix, Inc. - Common Stock, par value $0.00001 per share is tracked under CUSIP 68237Q203.
  • 0 institutions reported positions in Q1 2026.
  • 1 significant owner is listed from Schedule 13D/13G reporting.

What Changed

  • Holder count moved from 7 to 0 between Q4 2025 and Q1 2026.
  • Reported value moved from $95,255 to $0.

Why This Matters

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Source Evidence

Source: SEC Form 13F

Latest holder context comes from 0 institutions filings for Q1 2026.

Open SEC Evidence

Investment Quick Answers

What is CUSIP 68237Q203?
CUSIP 68237Q203 identifies ONCO - Onconetix, Inc. - Common Stock, par value $0.00001 per share in SEC 13F datasets.

Where can I see the latest institutional holders?
Review the Q1 2026 holders report and the ownership history table below.

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 Mar 2026, 0 institutional investors reported holding 0 shares of Onconetix, Inc. - Common Stock, par value $0.00001 per share (ONCO). This represents 0% 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
2026 Q1 0 $0 -$95,238 $0.60 0
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
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