AMPH stock ownership summary

Insider Edges tracks 31 current 13F investors holding AMPH with a current stock price of $19.63.

• CORIENT IA LLC Reduced AMPH; portfolio weight 0.12%; shares 6,670; reported value $130,665.
• ADVISORY RESEARCH INC Added AMPH; portfolio weight 0.06%; shares 25,335; reported value $496,313.
• HOHIMER WEALTH MANAGEMENT, LLC Added AMPH; portfolio weight 0.03%; shares 13,066; reported value $255,963.
• Jim Simons Added AMPH; portfolio weight 0.02%; shares 553,900; reported value $10.9M.
• CHINA UNIVERSAL ASSET MANAGEMENT CO., LTD. Added AMPH; portfolio weight 0.01%; shares 8,051; reported value $157,719.
• PROFUND ADVISORS LLC Reduced AMPH; portfolio weight 0.01%; shares 10,658; reported value $208,790.
• INTECH INVESTMENT MANAGEMENT LLC Reduced AMPH; portfolio weight 0.00%; shares 24,207; reported value $474,215.
• FREESTONE GROVE PARTNERS LP Added AMPH; portfolio weight 0.00%; shares 29,857; reported value $584,899.
• VIDENT ADVISORY, LLC Added AMPH; portfolio weight 0.00%; shares 23,244; reported value $455,350.
• ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Reduced AMPH; portfolio weight 0.00%; shares 325,291; reported value $6.4M.