EX-99.77O RULE 10F-3 4 develop.txt Morgan Stanley Developing Growth Securities Trust Item 77(o) 10f-3 Transactions April 1, 2001 - September 30, 2001 Security Date Price Shares %of Total Purcha Broker of Of Purchas Assets Issued sed Purch Shares ed By ase Fund EMBRAER $38.90 63,300 0.320% $577,173,926.00 0.004% Merril Lynch Fisher $24.00 121,200 0.378% $288,000,000.00 1.000% Scientif ic Infineon $21.33 31,200 0.095% $60,000,000.00 0.052% Goldma Technolo n gies Sachs Peabody $28.00 22,400 0.081% $15,000,000.00 0.149% Lehman Energy Brothe rs Rent A $42.50 53,200 0.293% $3,200,000.00 1.663% Lehman Center Brothe rs Willis $13.50 28,800 0.050% $270,000,000.00 0.001% Salomo Group n Hldgs Smith Barney F:\legal\msdata\paraleg\10f-3\develop