DOSSIER · 13F Holders · Q2 2026
ONCO

Onconetix Inc

5 institutions still hold Onconetix Inc as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 68237Q401·5 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$16K
visible holders
Holders
5
filers reporting
Concentration
96.31%
XTX Topco Ltd #1
top holder share
AI Holders Summary · Q2 2026

5 institutions reported ONCO in Q2 2026. XTX Topco Ltd leads at 96.3% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
XTX Topco Ltd
CIK 0001828301
$15K14K0.00%Q2 2026
02
SBI Securities Co., Ltd.
CIK 0001851815
$2852520.00%Q2 2026
03
Tower Research Capital LLC (TRC)
CIK 0001533421
$1641450.00%Q2 2026
04
HOLLENCREST CAPITAL MANAGEMENT
CIK 0001161722
$1131000.00%Q2 2026
05
MORGAN STANLEY
CIK 0000895421
$24210.00%Q2 2026
Insiders at Onconetix Inc
Hrt Financial LpOakley Andrew JohnTarsh SimonMeier ThomasRamdeen Timothy R.Altos Venture AgSchiess RalphBruhlmann Christian