4 institutions reported holding $51,292 of KARTOON STUDIOS INC. (GNUS) in SEC 13F filings for 2026-03-31. Largest institutional holders: GROUP ONE TRADING LLC ($21,590), IMC-Chicago, LLC ($20,405), SIMPLEX TRADING, LLC ($9,297), HUNTINGTON NATIONAL BANK ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $21,590 | 34,600 | Trimmed |
| 2 | IMC-Chicago, LLC | $20,405 | 32,700 | New |
| 3 | SIMPLEX TRADING, LLC | $9,297 | 14,900 | Added |
| 4 | HUNTINGTON NATIONAL BANK | $0 | 1 | Hold |
Source: SEC Form 13F filings · as of 2026-03-31