SUMMIT THERAPEUTICS INC — institutional ownership

4 funds reported holding SUMMIT THERAPEUTICS INC in their latest 13F filings, worth $6.25M in total (CUSIP 86627T958).

Largest holders

1. SIMPLEX TRADING, LLC — $2.77M
2. IMC-Chicago, LLC — $1.64M
3. GROUP ONE TRADING LLC — $1.51M
4. HRT FINANCIAL LP — $320K