IRON MTN INC DEL — institutional ownership

5 funds reported holding IRON MTN INC DEL in their latest 13F filings, worth $23.2M in total (CUSIP 46284V951).

Largest holders

1. IMC-Chicago, LLC — $11.5M
2. GROUP ONE TRADING LLC — $6.85M
3. SIMPLEX TRADING, LLC — $2.32M
4. HRT FINANCIAL LP — $2.27M
5. Alpine Global Management, LLC — $223K