---
title: "Oncopeptides AB (ONCO) news: reverse split and delisting"
url: "https://aibio.space/companies/oncopeptides/"
publisher: "aibio.space (Biotech Investor Relations News)"
summary: "ONCO reverse split, delisting, offering, convertible notes, Nasdaq notice and merger news: Onconetix sets a 1-for-10 reverse stock split for November 6."
---

ONCO Oncopeptides AB OMXSTO · Sweden

# Oncopeptides AB (ONCO) news ONCO reverse split, delisting and offering news

Listings · 2026-10-26

## [Onconetix sets a 1-for-10 reverse stock split for November 6](https://aibio.space/news/onconetix-sets-1-10-reverse-stock-split-november-6/)

The split cuts the share count to about 588,677 from roughly 5,886,774. The stock keeps trading on Nasdaq as ONCO under a new CUSIP.

## Latest Oncopeptides AB news

1. 2026-09-14 Company Updates [Onconetix provides $2.5 million bridge advance to Realbotix before acquisition](https://aibio.space/news/onconetix-provides-2-5-million-bridge-advance-realbotix-before/) The bridge facility provides up to $5,000,000 to Realbotix LLC, the target of a pending all-stock share exchange, with an initial advance of $2,500,000.
2. 2026-07-28 Financings [Onconetix sells $30,249,600 of Series F preferred in PIPE financing](https://aibio.space/news/onconetix-sells-30-249-600-series-f-preferred-pipe-financing/) The securities purchase agreement covers 37,812 shares of Series F convertible preferred stock with an initial conversion price of $0.9767 per share.
3. 2026-05-19 Listings [Onconetix to effect 1-for-10 reverse stock split on May 21, 2026](https://aibio.space/news/onconetix-effect-1-10-reverse-stock-split-may-21-2026/) The Board fixed the ratio under a stockholder authority approved April 30, 2026, to help keep the stock above Nasdaq's $1.00 minimum bid price.
4. 2026-05-13 Company Updates [Onconetix reports Q1 2026 progress at Proteomedix](https://aibio.space/news/onconetix-reports-q1-2026-progress-proteomedix/) The Swiss unit added two peer-reviewed papers, began enrolling in a U.S. validation study with Labcorp and kept expanding sales in Europe. The release does not report quarterly revenue or cash.
5. 2026-04-24 Company Updates [Onconetix directors Oakley and Meier resign; Dorf named chairman](https://aibio.space/news/onconetix-directors-oakley-meier-resign-dorf-named-chairman/) Josh Epstein joined the board on April 23, 2026 and chairs its Nominating and Corporate Governance Committee. The 8-K says neither resignation involved a disagreement with management.
6. 2025-10-03 Financings [Onconetix sells convertible preferred and warrants for approximately $6.25 million](https://aibio.space/news/onconetix-sells-convertible-preferred-warrants-approximately-6-25/) Institutional investors bought 7,813 shares of Series E convertible preferred stock and warrants for 2,025,223 common shares. The preferred converts at $3.8576.
7. 2025-07-16 Mergers [Onconetix signs merger deal with Ocuvex; Ocuvex holders would own 90%](https://aibio.space/news/onconetix-signs-merger-deal-ocuvex-ocuvex-holders-would-own-90-percent/) Onconetix holders would keep 10% of the combined company. Closing was expected in the fourth quarter of 2025, subject to regulatory, stockholder and third-party approvals.
8. 2025-05-22 Listings [Onconetix gets Nasdaq notice for unfiled 10-Q, issues $294,117.65 note to Keystone](https://aibio.space/news/onconetix-gets-nasdaq-notice-unfiled-10-q-issues-294-117-65-note/) Nasdaq flagged the missing quarterly report on May 20, 2025 as another basis for delisting, ahead of a Panel hearing set for May 27, 2025. Onconetix also issued a promissory note to Keystone Capital Partners for a $250,000.00 purchase price.
9. 2025-04-01 Distress [Onconetix files NT 10-K late filing notice, says cash fell to $0.6 million at year end](https://aibio.space/news/onconetix-files-nt-10-k-late-filing-notice-says-cash-fell-0-6-million/) Onconetix needs more time to finalize its 2024 financial statements and expects to file within the fifteen-day grace period. It flagged lower cash, goodwill and intangibles, and new subscription and warrant liabilities.
10. 2025-04-01 Distress [Onconetix delays 10-K as cash falls to $0.6 million at year end](https://aibio.space/news/onconetix-delays-10-k-cash-falls-0-6-million-year-end/) The company expects to file within the 15-day grace period. Its cash was about $4.6 million at the end of 2023.

## Oncopeptides AB at a glance

- **Ticker**: ONCO

- **Listing**: OMXSTO

- **Country**: Sweden

- **Cash, Jun 30, 2026**: $5.9 million

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### Also on OMXSTO

- [Elicera Therapeutics AB](https://aibio.space/companies/elicera-therapeutics/) ELIC
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## What Oncopeptides AB does

Onconetix, Inc. describes itself as a commercial stage biotechnology company focused on men's health and oncology. Its main product is Proclarix, a protein-based blood test for prostate cancer that uses the same sample as a regular PSA test. Proclarix helps doctors and patients with unclear PSA results decide whether a biopsy is needed. It is approved for sale in the European Union under the In Vitro Diagnostic Regulation, and the company expects to market it in the United States as a lab developed test through its license agreement with LabCorp. Onconetix acquired ENTADFI, an FDA-approved once-daily pill for BPH, in April 2023, but abandoned its commercialization and no longer holds inventory of the product. The company relies on third-party manufacturers, with single-source suppliers for commercial product. As of December 31, 2025, it reported cash of approximately $5.2 million, and the filing states that substantial doubt exists about its ability to continue as a going concern. In February 2026 it entered into a share exchange agreement with Realbotix Corp.

| Product or program | What it is | Stage |
|---|---|---|
| Proclarix | Blood test to help diagnose prostate cancer in patients with unclear PSA results | Approved for sale in the European Union |
| ENTADFI | Once-daily finasteride and tadalafil pill for BPH | FDA-approved; commercialization abandoned |

Summarised from the company's [10-K filed Mar 13, 2026](https://www.sec.gov/Archives/edgar/data/1782107/000121390026027725/ea0280547-10k_onconetix.htm).

## Oncopeptides AB annual financials

| Line | FY2025 | FY2024 |
|---|---|---|
| Revenue | [$815,371](https://www.sec.gov/Archives/edgar/data/1782107/000121390026027725/) | [$2.5 million](https://www.sec.gov/Archives/edgar/data/1782107/000121390026027725/) |
| Research and development |  | [$154,359](https://www.sec.gov/Archives/edgar/data/1782107/000121390025049687/) |
| Net income (loss) | [-$14.0 million](https://www.sec.gov/Archives/edgar/data/1782107/000121390026027725/) | [-$58.7 million](https://www.sec.gov/Archives/edgar/data/1782107/000121390026027725/) |
| Cash from operations | [-$9.7 million](https://www.sec.gov/Archives/edgar/data/1782107/000121390026027725/) | [-$10.5 million](https://www.sec.gov/Archives/edgar/data/1782107/000121390026027725/) |
| Cash and equivalents | [$5.2 million](https://www.sec.gov/Archives/edgar/data/1782107/000121390026089093/) | [$646,500](https://www.sec.gov/Archives/edgar/data/1782107/000121390026089093/) |

Latest balance sheet, Jun 30, 2026 (10-Q): cash and equivalents $5.9 million.

Figures as reported to the SEC in XBRL; each one links to its filing. Not adjusted, not investment advice.

## Questions about Oncopeptides AB

Did Oncopeptides AB do a reverse stock split?

Our latest story on this, dated Oct 26, 2026: "Onconetix sets a 1-for-10 reverse stock split for November 6". The story links the filing or release it is based on. [Read the story](https://aibio.space/news/onconetix-sets-1-10-reverse-stock-split-november-6/).

Was Oncopeptides AB delisted?

Our latest story on this, dated May 22, 2025: "Onconetix gets Nasdaq notice for unfiled 10-Q, issues $294,117.65 note to Keystone". The story links the filing or release it is based on. [Read the story](https://aibio.space/news/onconetix-gets-nasdaq-notice-unfiled-10-q-issues-294-117-65-note/).

Has Oncopeptides AB raised money recently?

Our latest story on this, dated Jul 28, 2026: "Onconetix sells $30,249,600 of Series F preferred in PIPE financing". The story links the filing or release it is based on. [Read the story](https://aibio.space/news/onconetix-sells-30-249-600-series-f-preferred-pipe-financing/).

Has Oncopeptides AB sold convertible notes?

Our latest story on this, dated Jul 28, 2026: "Onconetix sells $30,249,600 of Series F preferred in PIPE financing". The story links the filing or release it is based on. [Read the story](https://aibio.space/news/onconetix-sells-30-249-600-series-f-preferred-pipe-financing/).

Has Oncopeptides AB received a Nasdaq deficiency notice?

Our latest story on this, dated May 22, 2025: "Onconetix gets Nasdaq notice for unfiled 10-Q, issues $294,117.65 note to Keystone". The story links the filing or release it is based on. [Read the story](https://aibio.space/news/onconetix-gets-nasdaq-notice-unfiled-10-q-issues-294-117-65-note/).

Is Oncopeptides AB involved in a merger or acquisition?

Our latest story on this, dated Jul 16, 2025: "Onconetix signs merger deal with Ocuvex; Ocuvex holders would own 90%". The story links the filing or release it is based on. [Read the story](https://aibio.space/news/onconetix-signs-merger-deal-ocuvex-ocuvex-holders-would-own-90-percent/).

What is the ticker symbol of Oncopeptides AB?

Oncopeptides AB trades under the ticker ONCO on OMXSTO.

Where is Oncopeptides AB listed?

Oncopeptides AB is listed on OMXSTO. Our directory also records these other listings: GETTEX:OND; LSIN:0RN4; LSX:A2DLU2.

Which country or territory is Oncopeptides AB listed under?

Our directory records Oncopeptides AB under Sweden.

What does Oncopeptides AB do?

Our directory classifies Oncopeptides AB as: Pharmaceuticals: Major. This is a directory classification, not a description of the pipeline.

What is the ISIN of Oncopeptides AB?

The ISIN recorded for Oncopeptides AB is SE0009414576.

Does aibio.space cover Oncopeptides AB?

aibio.space lists Oncopeptides AB among 2,820 public biotech companies and publishes its news here as stories appear.

What does Oncopeptides AB develop?

Onconetix, Inc. describes itself as a commercial stage biotechnology company focused on men's health and oncology. Its main product is Proclarix, a protein-based blood test for prostate cancer that uses the same sample as a regular PSA test.

What is Proclarix from Oncopeptides AB?

Proclarix: Blood test to help diagnose prostate cancer in patients with unclear PSA results Stage: Approved for sale in the European Union.

What is ENTADFI from Oncopeptides AB?

ENTADFI: Once-daily finasteride and tadalafil pill for BPH Stage: FDA-approved; commercialization abandoned.

## Investor discussion: Oncopeptides AB

Members talk about Oncopeptides AB (ONCO). Reader posts, not aibio.space reporting, and not investment advice.

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## Capital-markets timeline

Financings, listing notices, splits, legal actions and other investor events at Oncopeptides AB, newest first. Each line links the filing it comes from.

1. 2026-10-26 Listings Reported a reverse stock split. SEC Form 8-K (Items 8.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390026112527/ea030972301ex99-1.htm)
2. 2026-10-23 Mergers Filed documents for a merger or acquisition. SEC Form 425. [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390026111883/ea0309474-425_onconetix.htm)
3. 2026-10-07 Listings Asked shareholders to approve a reverse stock split. SEC Form DEF 14A. [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390026107480/ea0307907-def14a_onconetix.htm)
4. 2026-09-17 Listings Asked shareholders to approve a reverse stock split. SEC Form PRE 14A. [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390026100837/ea0305710-pre14a_onconetix.htm)
5. 2026-07-29 Financings Reported a financing. SEC Form 8-K (Items 1.01,3.02,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390026082879/ea0299510-8k_onconetix.htm)
6. 2026-06-24 Mergers Filed documents for a merger or acquisition. SEC Form 425. [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390026071316/ea029568502-425_onconetix.htm)
7. 2026-05-19 Listings Reported a reverse stock split. SEC Form 8-K (Items 5.03,8.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390026058997/ea029154301ex99-1.htm)
8. 2026-05-04 Listings Reported a shareholder vote on a reverse stock split or more authorized shares. SEC Form 8-K (Items 5.07,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390026051575/ea0288982-8k_onconetix.htm)
9. 2026-03-30 Listings Asked shareholders to approve a reverse stock split. SEC Form DEF 14A. [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390026035976/ea0283690-def14a_onconetix.htm)
10. 2026-03-27 Listings Reported a reverse stock split. SEC Form 8-K (Items 5.03,8.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390026034902/ea028356901ex99-1.htm)
11. 2026-03-18 Listings Asked shareholders to approve a reverse stock split. SEC Form PRE 14A. [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390026029263/ea0282130-pre14a_onconetix.htm)
12. 2026-03-13 Distress Reported substantial doubt about its ability to continue as a going concern. SEC Form 10-K. [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390026027725/ea0280547-10k_onconetix.htm)
13. 2026-02-12 Mergers Filed documents for a merger or acquisition. SEC Form 425. [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390026015214/ea0276704-8k425_onconet.htm)
14. 2026-02-09 Listings Reported a shareholder vote on a reverse stock split or more authorized shares. SEC Form 8-K (Items 5.07,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390026013724/ea0276183-8k_onconetix.htm)
15. 2026-01-02 Listings Asked shareholders to approve a reverse stock split. SEC Form DEF 14A. [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390026000080/ea0271503-def14a_onconetix.htm)
16. 2025-12-22 Listings Asked shareholders to approve a reverse stock split. SEC Form PRE 14A. [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390025124575/ea0270513-pre14a_onconetix.htm)
17. 2025-11-10 Listings Asked shareholders to approve a reverse stock split. SEC Form DEF 14A. [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390025108093/ea0264698-def14a_onconetix.htm)
18. 2025-10-29 Listings Asked shareholders to approve a reverse stock split. SEC Form PRE 14A. [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390025103182/ea0262617-pre14a_onconetix.htm)
19. 2025-10-03 Financings Reported a financing. SEC Form 8-K (Items 1.01,3.02,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390025095847/ea0259860-8k_onconetix.htm)
20. 2025-09-22 Listings Reported a notice from its stock exchange about continued listing requirements. SEC Form 8-K (Items 1.01,7.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390025089845/ea025819601ex99-1_onconetix.htm)
21. 2025-07-16 Mergers Reported a merger or acquisition agreement. SEC Form 8-K (Items 1.01,5.02,8.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390025064469/ea024881501ex99-1_oncone.htm)
22. 2025-06-16 Listings Reported a notice from its stock exchange about continued listing requirements. SEC Form 8-K (Items 7.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390025054501/ea024581801ex99-1_onconetix.htm)
23. 2025-06-11 Listings Reported a reverse stock split. SEC Form 8-K (Items 1.01,2.03,3.03,5.03,7.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390025053367/ea024538701ex99-1_onconetix.htm)
24. 2025-06-05 Listings Reported a shareholder vote on a reverse stock split or more authorized shares. SEC Form 8-K (Items 5.07,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390025051573/ea0244883-8k_onconetix.htm)
25. 2025-05-22 Listings Reported a notice from its stock exchange about continued listing requirements. SEC Form 8-K (Items 1.01,2.03,3.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390025046909/ea024328701ex99-1_onconetix.htm)
26. 2025-04-30 Listings Asked shareholders to approve a reverse stock split. SEC Form DEF 14A. [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390025036959/ea0240055-def14a_onconetix.htm)
27. 2025-04-30 Listings Reported a notice from its stock exchange about continued listing requirements. SEC Form 8-K (Items 3.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390025037765/ea024032601ex99-1_onconetix.htm)
28. 2025-04-18 Listings Reported a notice from its stock exchange about continued listing requirements. SEC Form 8-K (Items 3.01,8.01). [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390025033295/ea0238654-8k_oncon.htm)
29. 2025-04-18 Listings Asked shareholders to approve a reverse stock split. SEC Form PRE 14A. [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390025033378/ea0238864-pre14a_onconetix.htm)
30. 2025-04-08 Listings Reported a notice from its stock exchange about continued listing requirements. SEC Form 8-K (Items 8.01,9.01). [Source](https://www.sec.gov/Archives/edgar/data/1782107/000121390025029639/ea023747101ex99-1_oncon.htm)

## Stock chart

Price chart and quote supplied by TradingView, delayed as the exchange requires. It loads only if you choose to show it. Information only, not investment advice. [Open OMXSTO:ONCO on TradingView](https://www.tradingview.com/symbols/OMXSTO-ONCO/).

## Listing details

Oncopeptides AB is a public biotech or pharmaceutical company listed on OMXSTO under the ticker ONCO, recorded under Sweden. The directory classifies it as Pharmaceuticals: Major. aibio.space tracks 2,820 public biotech companies worldwide and publishes investor news on them.

- **Company**: Oncopeptides AB

- **Ticker**: ONCO

- **Listing**: OMXSTO

- **Country or territory**: Sweden

- **Business scope**: Pharmaceuticals: Major

- **ISIN**: SE0009414576

- **Other listed symbols**: GETTEX:OND; LSIN:0RN4; LSX:A2DLU2

- **Last quote in directory**: 2026-10-21

- **Directory source**: [Listing page](https://www.tradingview.com/symbols/OMXSTO-ONCO/)

Listing facts come from our company directory, researched on October 22, 2026. A listing record does not certify that a security currently trades. [Tell us about a change](https://aibio.space/reputation/#update). Work at this company? [Claim this page](https://aibio.space/claim/).

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---
Source page: https://aibio.space/companies/oncopeptides/. Facts in aibio.space stories are checked against company filings and releases; opinion is labelled. Cite as: aibio.space, "Oncopeptides AB (ONCO) news: reverse split and delisting", 2026-10-31, https://aibio.space/companies/oncopeptides/