AMPH stock ownership summary

Insider Edges tracks 3 current 13F investors holding AMPH with a current stock price of $18.68.

• Jim Simons Added AMPH; portfolio weight 0.02%; shares 553,900; reported value $10.9M.
• BlackRock Reduced AMPH; portfolio weight 0.00%; shares 5,421,343; reported value $106.2M.
• Ken Griffin Reduced AMPH; portfolio weight 0.00%; shares 65,540; reported value $1.3M.