X0202 4 2006-03-30 0 0000021178 PROSPECT STREET INCOME SHARES INC CNN 0001228922 DONDERO JAMES D 13455 NOEL ROAD, STE 1300 DALLAS TX 75240 0 0 0 1 Affiliate - Investment Advisor Common Stock 2006-03-30 4 P 0 100 5.82 A 326916 I See Footnote Common Stock 2006-03-30 4 P 0 200 5.83 A 327116 I See Footnote Common Stock 2006-03-30 4 P 0 100 5.84 A 327216 I See Footnote Common Stock 2006-03-30 4 P 0 100 5.85 A 327316 I See Footnote Common Stock 2006-03-30 4 P 0 300 5.87 A 327616 I See Footnote Common Stock 2006-03-30 4 P 0 400 5.90 A 328016 I See Footnote Common Stock 2006-03-30 4 P 0 1700 5.91 A 329716 I See Footnote Common Stock 2006-03-30 4 P 0 1600 5.92 A 331316 I See Footnote Common Stock 2006-03-30 4 P 0 3400 5.93 A 334716 I See Footnote Common Stock 2006-03-30 4 P 0 500 5.94 A 335216 I See Footnote Common Stock 2006-03-31 4 P 0 100 5.81 A 335316 I See Footnote Common Stock 2006-03-31 4 P 0 500 5.82 A 335816 I See Footnote Common Stock 2006-03-31 4 P 0 800 5.83 A 336616 I See Footnote Common Stock 2006-03-31 4 P 0 1300 5.84 A 337916 I See Footnote Common Stock 2006-03-31 4 P 0 600 5.85 A 338516 I See Footnote Common Stock 2006-03-31 4 P 0 200 5.86 A 338716 I See Footnote Common Stock 2006-03-31 4 P 0 1200 5.91 A 339916 I See Footnote Common Stock 2006-03-31 4 P 0 100 5.92 A 340016 I See Footnote Common Stock 2006-03-31 4 P 0 900 5.93 A 340916 I See Footnote Common Stock 2006-03-31 4 P 0 2700 5.94 A 343616 I See Footnote Shares purchased by Highland CDO Opportunity Fund, Ltd. ("CDO"). Includes (i) 142,800 shares held by CDO and (ii) 200,816 shares held by The Canis Major Trust ("Canis Major"). Highland Capital Management, LP ("HCMLP") is the investment advisor for Prospect Street Income Shares, Inc. Mr. Dondero is the President of HCMLP and the trustee of Canis Major. CDO is controlled by HCMLP. Each of CDO, Canis Major, HCMLP and Mr. Dondero expressly disclaim beneficial ownership of the securities reported herein, except to the extent of their pecuniary interest therein. /s/ James Dondero 2006-04-03