6 institutions reported holding $52.7M of AFLAC INC (AFSD) in SEC 13F filings for 2026-03-31. Largest institutional holders: GROUP ONE TRADING LLC ($26.4M), IMC-Chicago, LLC ($20.2M), SIMPLEX TRADING, LLC ($6.0M), CenterStar Asset Management, LLC ($0), SG Americas Securities, LLC ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $26.4M | 241,000 | Added |
| 2 | IMC-Chicago, LLC | $20.2M | 184,300 | Added |
| 3 | SIMPLEX TRADING, LLC | $6.0M | 54,800 | Trimmed |
| 4 | CenterStar Asset Management, LLC | $0 | 0 | Exited |
| 5 | SG Americas Securities, LLC | $0 | 0 | Exited |
| 6 | JPMORGAN CHASE & CO | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31