8 institutions reported holding $23.5M of EXELON CORP (EXCU) in SEC 13F filings for 2026-03-31. Largest institutional holders: IMC-Chicago, LLC ($10.7M), SIMPLEX TRADING, LLC ($6.1M), GROUP ONE TRADING LLC ($2.8M), JPMORGAN CHASE & CO ($2.2M), Maven Securities LTD ($1.2M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $10.7M | 218,800 | Trimmed |
| 2 | SIMPLEX TRADING, LLC | $6.1M | 123,900 | Trimmed |
| 3 | GROUP ONE TRADING LLC | $2.8M | 57,800 | Trimmed |
| 4 | JPMORGAN CHASE & CO | $2.2M | 44,500 | Hold |
| 5 | Maven Securities LTD | $1.2M | 25,200 | New |
| 6 | SUMMIT SECURITIES GROUP LLC | $245,100 | 5,000 | New |
| 7 | SG Americas Securities, LLC | $197,000 | 492,900 | New |
| 8 | Ghisallo Capital Management LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31