ULTRA CLEAN HLDGS INC — institutional ownership

3 funds reported holding ULTRA CLEAN HLDGS INC in their latest 13F filings, worth $10.0M in total (CUSIP 90385V907).

Largest holders

  1. GROUP ONE TRADING LLC — $6.23M
  2. IMC-Chicago, LLC — $3.51M
  3. SIMPLEX TRADING, LLC — $285K