Altos Venture AG - 14 Jul 2025 Form 4 Insider Report for Onconetix, Inc. (ONCO)

Reporting relationship: 10%+ Owner
Issuer ticker: ONCO
Reported as of: 14 Jul 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 16 Jul 2025, 16:03:52 UTC
Prior SEC filing: 01 Nov 2024
Source filing: View source filing
Reporting owner signature: Altos Venture, AG, by /s/ Tobias Fischli, Authorized Signatory

Key filing fact

Altos Venture AG filed Form 4 for Onconetix, Inc. (ONCO) on 16 Jul 2025.

Key facts

This page summarizes Altos Venture AG's Form 4 filing for Onconetix, Inc. (ONCO).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 16 Jul 2025, 16:03.

Change

Previous filing in this sequence was filed on 01 Nov 2024.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002006260 Primary reporting owner

Altos Venture AG

Relationship: 10%+ Owner
Address: OBERTORWEG 64, ALLSCHWIL, SWITZERLAND
Signature: Altos Venture, AG, by /s/ Tobias Fischli, Authorized Signatory
Signature date: 16 Jul 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ONCO transaction

Common Stock

Other

Transaction value
Shares: +241,514
Change %: +761%
Price
Shares after: 273,230
Date: 14 Jul 2025
Ownership: Direct
Footnotes: F1, F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ONCO transaction Derivative

Make-whole right (right to acquire)

Other

Transaction value
Shares: -241,514
Change %: -100%
Price
Shares after: 0
Date: 14 Jul 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 241,514
Exercise price
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

1. Pursuant to a Subscription Agreement with the Issuer dated December 15, 2023, the Reporting Person purchased Units of Common Stock and warrants (immediately exercised) on September 24, 2024. Under a "make-whole" provision in the Subscription Agreement, the Issuer agreed to adjust the price for the Units by issuing additional shares of Common Stock to the Reporting Person based on the Issuer VWAP (as defined in the Subscription Agreement) during a specified period following the purchase. At the end of the period, the number of additional shares to be issued was determined to be 241,514, and those shares were issued to the Reporting Person on July 14, 2025 pursuant to the "make-whole" provision.

Footnote F2

On September 24, 2024, the Issuer effected a 1-for-40 reverse split of its Common Stock, and on June 13, 2025, the Issuer effected a 1-for-85 reverse split of its Common Stock.