ONCONasdaqPharmaceutical PreparationsFiscal year ends December 31
Onconetix, Inc.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 13, 2026
$0.43−0.05 (-10.13%)
Close on Oct 19, 2026
- Market cap
- $965.06K
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
1.7%
0M of 4M shares
Institutional holders
6
6 new, 0 sold out
Net institutional buying
0M
In Q2 2026
Insider trades, 12 months
3 buys · 3 sales
Net bought $8.41K
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Scablis AG | 581,938 | 7.00% | 13G (passive) | Sep 24, 2024 |
| New Horizon Health Limited | 573,080 | 6.91% | 13G (passive) | Sep 24, 2024 |
| Altos Venture AG | 273,230 | 35.80% | 13D (active) amendment | Jul 14, 2025 |
| Fredric Zaino | 223,717 | 6.10% | 13G (passive) | Jul 20, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of ONCO | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Hrt Financial LP | 51,398 | 1.30% | $58 | New | 0.00% |
| XTX Topco Ltd | 13,548 | 0.34% | $15.31K | New | 0.00% |
| SBI Securities Co., Ltd. | 252 | 0.01% | $285 | New | 0.00% |
| Tower Research Capital LLC (TRC) | 145 | 0.00% | $164 | New | 0.00% |
| Hollencrest Capital Management | 100 | 0.00% | $113 | New | 0.00% |
| Morgan Stanley | 21 | 0.00% | $24 | New | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 6 | 0M | 1.7% | 6 / 0 | 0 / 0 | 0M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of ONCO | Value | % of fund | As of |
|---|---|---|---|---|---|
| Fidelity Extended Market Index Fund | 1,172 | 0.03% | $1.41K | 0.00% | May 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| David Allan White | Chief Executive Officer | – | – | Mar 27, 2026 |
| Christian Bruhlmann | Chief Strategy Officer | 611,372 | 15.48% | Jan 22, 2025 |
| Ralph Schiess | Interim CEO, CSO | 673,365 | 17.05% | Jan 22, 2025 |
| Sammy Dorf | Director | – | – | Mar 27, 2026 |
| Sarah Romano | Director | – | – | Dec 12, 2025 |
| Andrew John Oakley | Director | 638 | 0.02% | Aug 19, 2025 |
| Simon Tarsh | Director | 40 | 0.00% | Aug 19, 2025 |
| Timothy R. Ramdeen | Director | 40 | 0.00% | Aug 19, 2025 |
| Thomas Meier | Director | 39 | 0.00% | Aug 19, 2025 |
| Financial Lp Hrt | 10% owner | 33,649 | 0.85% | Apr 22, 2026 |
| Venture AG Altos | 10% owner | 273,230 | 6.92% | Jul 16, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Financial Lp Hrt 10% owner | Apr 21, 2026 | Sale | −49,710 | $0.69 | $34.30K | 33,649 |
| Financial Lp Hrt 10% owner | Apr 20, 2026 | Sale | −94,462 | $0.75 | $70.85K | 83,359 |
| Financial Lp Hrt 10% owner | Apr 17, 2026 | Buy | +34,636 | $0.73 | $25.28K | 177,821 |
| Financial Lp Hrt 10% owner | Apr 16, 2026 | Sale | −53,867 | $0.73 | $39.32K | 143,185 |
| Financial Lp Hrt 10% owner | Apr 15, 2026 | Buy | +92,554 | $0.76 | $70.34K | 197,052 |
| Financial Lp Hrt 10% owner | Apr 14, 2026 | Buy | +74,350 | $0.77 | $57.25K | 104,498 |
| Timothy R. Ramdeen Director | Aug 15, 2025 | Other | +39 | – | – | 40 |
| Timothy R. Ramdeen Director | Aug 15, 2025 | Award | +618 | – | – | 658 |
| Andrew John Oakley Director | Aug 15, 2025 | Award | +618 | – | – | 638 |
| Andrew John Oakley Director | Aug 15, 2025 | Other | +20 | – | – | 20 |
| Thomas Meier Director | Aug 15, 2025 | Other | +39 | – | – | 39 |
| Thomas Meier Director | Aug 15, 2025 | Award | +618 | – | – | 657 |
| Simon Tarsh Director | Aug 15, 2025 | Other | +39 | – | – | 40 |
| Simon Tarsh Director | Aug 15, 2025 | Award | +618 | – | – | 658 |
| Venture AG Altos 10% owner | Jul 14, 2025 | Other | +241,514 | – | – | 273,230 |
| Andrew John Oakley Director | Mar 23, 2025 | Award | +1,709 | – | – | 1,709 |
| Christian Bruhlmann Chief Strategy Officer | Dec 20, 2024 | Award | +177,462 | – | – | 611,372 |
| Ralph Schiess Interim CEO, CSO | Dec 20, 2024 | Award | +177,462 | – | – | 673,365 |
| Timothy R. Ramdeen Director | Sep 26, 2024 | Award | +3,318 | – | – | 3,477 |
| Simon Tarsh Director | Sep 26, 2024 | Award | +3,318 | – | – | 3,477 |
| James Sapirstein Director | Sep 26, 2024 | Award | +3,318 | – | – | 3,477 |
| Thomas Meier Director | Sep 26, 2024 | Award | +3,318 | – | – | 3,318 |
| Ajit Singh Director | Sep 26, 2024 | Award | +3,318 | – | – | 3,396 |
| Ralph Schiess Interim CEO & CSO | Sep 24, 2024 | Award | +489,160 | – | – | 495,903 |
| Christian Bruhlmann Chief Strategy Officer | Sep 24, 2024 | Award | +428,010 | – | – | 433,910 |
| Ajit Singh Director | Feb 16, 2024 | Award | +3,125 | – | – | 3,125 |
| Vuk Jeremic Director | May 31, 2023 | Award | +6,360 | – | – | 6,360 |
| James Sapirstein Director | May 31, 2023 | Award | +6,360 | – | – | 6,360 |
| Simon Tarsh Director | May 31, 2023 | Award | +6,360 | – | – | 6,360 |
| Timothy R. Ramdeen Director | May 31, 2023 | Award | +6,360 | – | – | 6,360 |
| Jon Garfield Chief Financial Officer | May 9, 2023 | Award | +100,000 | – | – | 100,000 |
| Erin Henderson Chief Business Officer | May 9, 2023 | Award | +150,000 | – | – | 174,752 |
| Joseph Hernandez CEO, Director, 10% owner | May 9, 2023 | Award | +150,000 | – | – | 2,800,351 |
| Cincinnati Cornerstone Investors BWV I, LLC 10% owner | Apr 10, 2023 | Other | −1,200,000 | – | – | 1,161,201 |
| Cincinnati Cornerstone Investors BWV I, LLC 10% owner | Nov 17, 2022 | Other | −750,000 | – | – | 2,361,201 |
| Cornerstone Capital LLC Cincinnati – | Aug 25, 2022 | Other | −500,000 | – | – | 3,111,201 |
| Joseph Hernandez CEO, Director, 10% owner | Aug 22, 2022 | Sale | −30,269 | $4.10 | $124.10K | 2,650,351 |
| Allan Shaw Director | Aug 19, 2022 | Tax withholding | +29,636 | $0.01 | $296 | 29,636 |
| Allan Shaw Director | Aug 19, 2022 | Sale | −29,636 | $3.94 | $116.77K | 0 |
| Joseph Hernandez CEO, Director, 10% owner | Aug 19, 2022 | Sale | −76,841 | $4.21 | $323.50K | 2,680,620 |
| Erin Henderson Chief Business Officer | Aug 19, 2022 | Tax withholding | +4,834 | $0.01 | $48 | 29,586 |
| Erin Henderson Chief Business Officer | Aug 19, 2022 | Sale | −4,834 | $3.97 | $19.19K | 24,752 |
| Joseph Hernandez CEO, Director, 10% owner | Aug 18, 2022 | Sale | −442,539 | $4.96 | $2.19M | 2,757,461 |
| Erin Henderson Chief Business Officer | Aug 18, 2022 | Tax withholding | +24,752 | $0.01 | $248 | 24,752 |
| Cincinnati Cornerstone Investors BWV I, LLC 10% owner | Feb 23, 2022 | Conversion | +3,611,201 | – | – | 3,611,201 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.