X0202 4 2007-01-23 1 0000873538 OPEN SOLUTIONS INC OPEN 0001270273 NAUDON CARLOS P C/O BANKING SPECTRUM, INC. 57 WEST 38TH STREET NEW YORK NY 10018 1 0 0 0 Common Stock 2007-01-23 4 D 0 89789 38.00 D 0 D Common Stock 2007-01-23 4 D 0 20689 38.00 D 0 I See footnote Common Stock 2007-01-23 4 D 0 20689 38.00 D 0 I See footnote Common Stock 2007-01-23 4 D 0 13793 38.00 D 0 I See footnote Common Stock 2007-01-23 4 D 0 6251 38.00 D 0 I See footnote Stock Option (Right to Buy) 21.49 2007-01-23 4 D 0 5000 16.51 D 2014-05-25 Common Stock 5000 0 D Stock Option (Right to Buy) 19.56 2007-01-23 4 D 0 15000 18.44 D 2015-05-19 Common Stock 15000 0 D Stock Option (Right to Buy) 27.61 2007-01-23 4 D 0 7500 10.39 D 2016-05-16 Common Stock 7500 0 D Restricted Stock Units 2007-01-23 4 D 0 589 38.00 D Common Stock 589 0 D Restricted Stock Units 2007-01-23 4 D 0 589 38.00 D Common Stock 589 0 D Restricted Stock Units 2007-01-23 4 D 0 1124 38.00 D Common Stock 1124 0 D Disposed of pursuant to an Agreement and Plan of Merger among the issuer, Harpoon Acquisition Corporation, and Harpoon Merger Corporation in exchange for the right to receive $38.00 per share. These shares were owned by The Enrique S. Naudon Trust, of which Susan Steingass, Mr. Naudon's spouse, is a trustee. Mr. Naudon disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest therein, and the reporting herein of such securities shall not be construed as an admission that Mr. Naudon was the beneficial owner of any such securities for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose. These shares were owned by The Ignacio S. Naudon Trust, of which Susan Steingass, Mr. Naudon's spouse, is a trustee. Mr. Naudon disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest therein, and the reporting herein of such securities shall not be construed as an admission that Mr. Naudon was the beneficial owner of any such securities for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose. These shares were owned by The Huguette Rivet Trust, of which Susan Steingass, Mr. Naudon's spouse, is a trustee. Mr. Naudon disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest therein, and the reporting herein of such securities shall not be construed as an admission that Mr. Naudon was the beneficial owner of any such securities for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose. These shares were owned by The Eric P. Steingass Trust dtd 12/22/97, of which Susan Steingass, Mr. Naudon's spouse, is a trustee. Mr. Naudon disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest therein, and the reporting herein of such securities shall not be construed as an admission that Mr. Naudon was the beneficial owner of any such securities for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose. This option, which was granted on May 25, 2004, was cancelled in the merger in exchange for a $82,550.00 cash payment, representing the excess of $38.00 over the per share exercise price of the option multiplied by the number of shares subject to the option, whether vested or unvested. This option, which was granted on May 19, 2005, was cancelled in the merger in exchange for a $276,600.00 cash payment, representing the excess of $38.00 over the per share exercise price of the option multiplied by the number of shares subject to the option, whether vested or unvested. This option, which was granted on May 16, 2006, was cancelled in the merger in exchange for a $77,925.00 cash payment, representing the excess of $38.00 over the per share exercise price of the option multiplied by the number of shares subject to the option, whether vested or unvested. These restricted stock units, which were granted on February 28, 2005 and represent the right to receive one share of common stock of the issuer per unit, were cancelled in the merger in exchange for a $22,382.00 cash payment, representing $38.00 multiplied by the number of restricted stock units. These restricted stock units, which were granted on April 19, 2005 and represent the right to receive one share of common stock of the issuer per unit, were cancelled in the merger in exchange for a $22,382.00 cash payment, representing $38.00 multiplied by the number of restricted stock units. These restricted stock units, which were granted on April 3, 2006 and represent the right to receive one share of common stock of the issuer per unit, were cancelled in the merger in exchange for a $42,712.00 cash payment, representing $38.00 multiplied by the number of restricted stock units. /s/ Kenneth J. Saunders as attorney-in-fact 2007-01-24