On October 22, 2026, Onconetix advanced an additional $500,000 to Realbotix pursuant to a Grid Promissory Note dated September 11, 2026. This brings the total outstanding principal under the note to $3.0 million against a maximum aggregate amount of $5.0 million, following a prior $2.5 million advance on September 11. The terms of the note remain unchanged. Onconetix operates in the biotechnology sector.
