8 institutions reported holding $284.3M of ENERGY TRANSFER L P (ET-PC) in SEC 13F filings for 2026-06-30. Largest institutional holders: GROUP ONE TRADING LLC ($133.4M), SIMPLEX TRADING, LLC ($73.9M), IMC-Chicago, LLC ($65.9M), Truffle Hound Capital, LLC ($9.6M), HRT FINANCIAL LP ($959,000). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $133.4M | 7.0M | Added |
| 2 | SIMPLEX TRADING, LLC | $73.9M | 3.9M | Trimmed |
| 3 | IMC-Chicago, LLC | $65.9M | 3.4M | Added |
| 4 | Truffle Hound Capital, LLC | $9.6M | 500,000 | Hold |
| 5 | HRT FINANCIAL LP | $959,000 | 50,200 | Trimmed |
| 6 | DV Trading LLC | $544,920 | 28,500 | New |
| 7 | CMT Capital Markets Trading GmbH | $0 | 0 | Exited |
| 8 | CenterStar Asset Management, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30