5 institutions reported holding $7.7M of UNUM GROUP 4 29 DUE 06/15/29 (UNMA) in SEC 13F filings for 2026-06-30. Largest institutional holders: IMC-Chicago, LLC ($5.7M), SIMPLEX TRADING, LLC ($1.0M), GROUP ONE TRADING LLC ($902,940), THOMPSON INVESTMENT MANAGEMENT, INC. ($60,437), Financial Gravity Companies, Inc. ($7,835). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $5.7M | 64,100 | Trimmed |
| 2 | SIMPLEX TRADING, LLC | $1.0M | 11,700 | Trimmed |
| 3 | GROUP ONE TRADING LLC | $902,940 | 10,100 | Added |
| 4 | THOMPSON INVESTMENT MANAGEMENT, INC. | $60,437 | 2,780 | Hold |
| 5 | Financial Gravity Companies, Inc. | $7,835 | 8,000 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30