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AI brief of an SEC Form 8-K · Onconetix, Inc. (ONCO)

Onconetix to effect 1-for-10 reverse stock split effective November 6, 2026

Neutral Impact 3 of 5 shareholder Written later

Onconetix, Inc. said its Board approved an additional one-for-ten reverse stock split of its common stock, which will bring the aggregate split ratio under the stockholder-approved authority to one-for-one hundred with a May 21, 2026 split. Shares are expected to begin trading on a split-adjusted basis on Nasdaq on November 6, 2026, under the existing symbol ONCO. The split reduces the share count but does not change any stockholder's percentage ownership, apart from cash paid for fractional shares.

Key points

  • Reverse split of one-for-ten is expected to take effect at 12:01 a.m. Eastern Time on November 6, 2026
  • Outstanding shares expected to fall from approximately 5.9 million to approximately 589,000
  • Combined with the May 21, 2026 split, the aggregate ratio is one-for-one hundred; new CUSIP 68237Q500 and symbol ONCO unchanged
  • No fractional shares will be issued; holders will receive cash in lieu, and authorized shares remain at 250,000,000

The filing

CompanyOnconetix, Inc. (ONCO)
Form8-K, current report
Filed with the SECOct 26, 2026, 5:04 PM ET
Accession number0001213900-26-112527

Items reported: 8.01 Other Events

Read the filing on SEC.gov ↗

Written by AI on Nov 9, 2026, 11:43 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on October 26, 2026.

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.