GROUP ONE TRADING LLC

13D and 13G Filings

Investors who own more than 5% of a class must file a Schedule 13D or 13G. The latest filing for each security since 12/18/2024, newest first.

Issuer % of Class Filed
Cato Corp 13G/A
CATO · 149205106
1.4% 9/8/2026
Event 6/30/2026
Poet Technologies Inc. 13G/A
POET · 73044W302
0.7% 9/8/2026
Event 8/31/2026
Quince Therapeutics, Inc. 13G
QNCX · 22053A107
10.7% 3/5/2026
Event 2/28/2026
B. Riley Financial, Inc. 13G
RILY · 05580M108
2.8% 5/14/2025
Event 3/31/2025