NasdaqHealth CarePharmaceutical PreparationsCINCINNATI, OH

Onconetix, Inc. ONCO

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Estimated market cap $1.27M394,911 shares, shares as of Aug 13, 2026CIK 1782107

Insider trades, 12 mo

3 buys · 3 sells

$144.5K sold, open market

Congress trades, 24 mo

—

No disclosed trades

13F holders, Q3 2026

2.1% of shares · 1 added

13F holders

…

Lobbying, 12 mo

—

No lobbying filings

Federal contracts, 12 mo

—

None matched

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Latest 10-Q

Q2 2026

What changed in Onconetix, Inc.'s latest quarterly report, compared with the one before.

Filed Aug 13, 2026 · Quarter ended Jun 30, 2026

Compared with the 10-Q for the quarter ended Mar 31, 2026. Sections compared: management's discussion, risk factors, legal proceedings and controls and procedures.

Read the 10-Q on sec.gov ↗Filing index ↗

Latest 10-Q

What changed in Onconetix, Inc.'s latest quarterly report, compared with the one before.

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Insider trades

6 in 12 mo

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

No open-market insider trades reported since Apr 21, 2026. Insiders have two business days to file.

Recent insider trades

HRT Financial LP 10% owner	Apr 21 Form 4 ↗	Sale	−$34.3K 49,710 sh @ $0.69	-102.4%
HRT Financial LP 10% owner	Apr 20 Form 4 ↗	Sale	−$70.8K 94,462 sh @ $0.75	-102.1%
HRT Financial LP 10% owner	Apr 17 Form 4 ↗	Buy	+$25.3K 34,636 sh @ $0.73	-101.9%
HRT Financial LP 10% owner	Apr 16 Form 4 ↗	Sale	−$39.3K 53,867 sh @ $0.73	-103.3%
HRT Financial LP 10% owner	Apr 15 Form 4 ↗	Buy	+$70.3K 92,554 sh @ $0.76	-103.6%

All ONCO insider trades →Planned sales (Form 144): see notices

Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.

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13F holders

81,950 shares

7 funds report ONCO. Values checked against market prices.

Funds own 1.7% of shares (Q2 2026)

6 funds hold the stock.

Q3 2026: 2.1% · 5,560 of ~8,900 funds reported so far

Q2 20261.7%
Q3 2026 (so far)2.1%

Q3 2026. 6 new, 1 added to, 0 trimmed, 4 exited since Q2 2026.

Top 13F holders
#
1	Geode Capital Management, LLC 13F ↗	22,642	$17.7K	New
2	Jane Street Group, LLC 13F ↗	15,470	$12.1K	New
3	UBS Group AG 13F ↗	15,450	$12.1K	New
4	StoneX Group Inc. 13F ↗	15,409	$12.1K	New
5	Stratos Wealth Partners, Ltd. 13F ↗	12,665	$9,908	New
6	SBI Securities Co., Ltd. 13F ↗	313	$245	+24.2%
7	Barclays plc 13F ↗	1	$1	New

Download CSV Every fund that holds ONCO, not only these ten. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.

13F holders

Funds that report this stock, checked against market prices.

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Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

No recent congressional trades for this company.

Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.

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Lobbying

What Onconetix, Inc. and its lobbying firms report each quarter.

No recent lobbying filings for this company.

Lobbying

What Onconetix, Inc. and its lobbying firms report each quarter.

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Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

Funds holding the stock

Shares they report

Funds holding the stock by quarter

Q2 2026	6	—	65,464	$73.9K
Q3 2026	7	+1	81,950	$64.1K

Each point is a quarter-end, from Q2 2026 to Q3 2026. A fund's 13F lists its long positions in US-listed securities as of the last day of the quarter and arrives up to 45 days later, so each point shows holdings at quarter-end, not on the day they were reported.

Common shares only; options and bonds are left out. When a fund amends a report, the amended version is the one counted.

The history follows the company's current CUSIP number (68237Q401). If the company's shares were ever re-issued under a different CUSIP, the quarters before the change are not part of this series, so the first point (Q2 2026) can be later than the stock's first appearance in 13F reports.

Share counts are adjusted for stock splits; none took place between these quarters. Values are in dollars as reported at the time and are not adjusted.

A quarter appears once our daily update has built its summary. If a summary cannot be built, older reports are kept and the chart shows the quarters it has until the next update repairs it.

Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

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More filings and data

Each opens the table.

Ownership stakes2 in 12 mo 8-K events6 in 90 days PatentsNone on record Short interestFINRA · updated Oct 15 Planned insider salesNone in 12 mo Executive payNone on record Wikipedia attentionNone on record SEC enforcementNone on record Pending deal1 deal filed lately IPO history12 registrations Ownership stakes…8-K events…Patents…Short interest…Planned insider sales…Executive pay…Wikipedia attention…SEC enforcement…

About the company

The basics from the company’s SEC registration.

Legal name: Onconetix, Inc.
Address: 201 E. FIFTH STREET, SUITE 1900, CINCINNATI, OH 45202
Phone: 513-620-4101
Fiscal year ends: Dec 31
Filer category: emerging growth company
Incorporated in: DE
Listed as: ONCO (Nasdaq)
Former names: Blue Water Biotech, Inc. (until 2023); Blue Water Vaccines Inc. (until 2023)
SEC filings: All filings on SEC EDGAR ↗

About the company

The basics from the company’s SEC registration.

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$3.21+$0.18 (+5.94%) Nov 13 close

1M3M1Y

Oct 13, 2026Low $3.03 · High $6.95Nov 13, 2026

Aug 13, 2026Low $3.03 · High $11.10Nov 13, 2026

Nov 13, 2025Low $3.03 · High $1,495.00Nov 13, 2026

Congress purchase Congress sale Insider sale over $1M

Adjusted for stock splits; not for dividends. The stock split 1-for-10 on Nov 6, 2026; 1-for-10 on May 21, 2026; 1-for-5 on Mar 25, 2026; earlier prices are shown divided by the split ratio. Where prices come from.

Live chart

Intraday and historical prices from TradingView. Quotes may be delayed.

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Information, not investment advice. Company matching is automatic; check the source before relying on one row.