X0303 4 2011-02-03 0 0000883237 VIRTUS INVESTMENT PARTNERS, INC. VRTS 0001374331 Angerthal Michael A C/O VIRTUS INVESTMENT PARTNERS, INC. 100 PEARL STREET HARTFORD CT 06103 0 1 0 0 EVP, Chief Financial Officer Common Stock, par value $0.01 per share 2011-02-03 4 P 0 2000 53.86 A 31873 D This transaction was executed in multiple trades at prices ranging from $53.77 to $53.95. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. Of this amount, (i) 6,073 shares comprise an award of restricted stock units ("RSUs") that are scheduled to cliff vest on March 15, 2012 and (ii) 23,800 shares comprise an award of RSUs that are scheduled to cliff vest on April 20, 2012. RSUs will be settled for shares of common stock on a one-for-one basis upon vesting. /s/ Kevin J. Carr, Attorney-in-Fact 2011-02-04