AMPHASTAR PHARMACEUTICALS IN — institutional ownership

2 funds reported holding AMPHASTAR PHARMACEUTICALS IN in their latest 13F filings, worth $113K in total (CUSIP 03209R903).

Largest holders

1. GROUP ONE TRADING LLC — $103K
2. SIMPLEX TRADING, LLC — $10.1K

Who owns the most AMPHASTAR PHARMACEUTICALS IN stock?

The largest institutional holders in the latest 13F filings are GROUP ONE TRADING LLC ($103K), SIMPLEX TRADING, LLC ($10.1K).

How many funds own AMPHASTAR PHARMACEUTICALS IN?

2 funds reported holding it, worth $113K in total.