*Brief description: securities brokerage and trading, primarily for individuals in Mid-Atlantic region; underwriting of corporate and municipal securities; money management; incorporated in Maryland in 1981 to serve as holding company for Legg Mason Wood Walker; firm formed in 1970 when Legg & Co. merged with Mason & Co.; Legg & Co. founded in Maryland in 1899; Mason & Co. founded in Virginia in 1962.

*Initial sale of stock to the public: July 29, 1983.

*Initial offering price: $18.50 a share.

*Closing price on Friday: $29.13.

*Percentage of shares held by public after initial offering: 35 percent.

*Proceeds to company from sale of stock to public: $13.4 million.

*Use of proceeds: to expand brokerage operations and to diversify into related financial service businesses.

*Secondary sale of stock to the public: Dec. 18, 1985.

*Approximate percentage of shares held by public after offering: 41 percent.

*Offering price: $22.25 a share.

*Approximate proceeds to company: $14 million.

*Use of proceeds: to expand brokerage operations and to diversify into related financial service businesses.

*Revenue and net income for year ended Dec. 31, 1985: $100.2 million and $6.8 million ($1.48 a share) versus $66.1 million and $2.7 million (60 cents) in prior year.