NRG ENERGY INC — institutional ownership

4 funds reported holding NRG ENERGY INC in their latest 13F filings, worth $178M in total (CUSIP 629377958).

Largest holders

1. GROUP ONE TRADING LLC — $132M
2. IMC-Chicago, LLC — $19.8M
3. SIMPLEX TRADING, LLC — $16.8M
4. SEGRA CAPITAL MANAGEMENT, LLC — $9.57M