3 institutions reported holding $8.8M of ARMOUR RESIDENTIAL REIT INC (ARR-PA) in SEC 13F filings for 2026-03-31. Largest institutional holders: SIMPLEX TRADING, LLC ($3.9M), IMC-Chicago, LLC ($3.7M), GROUP ONE TRADING LLC ($1.1M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $3.9M | 232,900 | Trimmed |
| 2 | IMC-Chicago, LLC | $3.7M | 223,900 | Added |
| 3 | GROUP ONE TRADING LLC | $1.1M | 68,600 | Trimmed |
Source: SEC Form 13F filings · as of 2026-03-31