X0303 4 2009-12-07 0 0001473597 STR Holdings, Inc. STRI 0001427322 Sprott Ryan 10 WATER STREET ENFIELD CT 06082 1 0 0 0 Common Stock, par value $0.01 per share 2009-12-07 4 S 0 918989 10 D 14004376 I BY DLJ MERCHANT BANKING PARTNERS IV, L.P. AND ITS AFFILIATED FUNDS Includes 476,261 shares sold by DLJ Merchant Banking Partners IV, L.P., 249,276 shares sold by DLJ Offshore Partners IV, L.P., 36,627 shares sold by DLJ Merchant Banking Partners IV (Pacific), L.P. and 156,825 shares sold by MBP IV Plan Investors, L.P. Includes 7,257,689 shares held by DLJ Merchant Banking Partners IV, L.P., 3,798,694 shares held by DLJ Offshore Partners IV, L.P., 558,149 shares held by DLJ Merchant Banking Partners IV (Pacific) L.P., and 2,389,844 shares held by MBP IV Plan Investors, L.P. The reporting person is a partner and a member of the Investment Committee of DLJ Merchant Banking Partners IV, L.P. The reporting person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interests therein. /s/ Joseph C. Radziewicz, Attorney-in-fact 2009-12-07