Question 1

Who owns AMPH stock?

Accepted Answer

AMPH (AMPHASTAR PHARMACEUTICALS INC) is held by 1 tracked superinvestors with an aggregate position value of $37M based on the most recent SEC 13F filings. Top institutional holders include: Howard Marks.

Question 2

How much AMPH do superinvestors hold in aggregate?

Accepted Answer

Across 1 tracked managers, superinvestors collectively report $37M in AMPH positions worth 40,880,000 shares.

Question 3

What is the largest holder of AMPH?

Accepted Answer

The largest tracked holder of AMPH is Howard Marks (Oaktree Capital Management) with 40,880,000 shares worth $37M, representing 0.52% of their portfolio.

AMPHAMPHASTAR PHARMACEUTICALS INC

📊 Holdings Over Time

Quarter-by-Quarter Activity