Ferris & Co., Inc., a Washington-based securities and investment firm, yesterday announced a realignment of its top management in the wake of the vice chairman Julia Montgomery Walsh's decision to resign and establish her own firm in June.

Elected to succeed Walsh as vice chairman was Gail H. Winslow, a longtime member of the Ferris executive and long-range planning committee. Winslow joined the firm in 1956 and played a key role in developing the Ferris financial education program here in the 1950s. Today she is the firm's most-sought-after speaker.

Ferris also named Sally A. Behn as executive vice president for sales. Behn has been with Ferris since 1965 and was elected senior vice president and director in 1973.

George M. Ferris Jr., president of the company, said Winslow and Behn "through their creative imagination and good judgement have been major factors in Ferris' dynamic growth." He also announced the elections senior vice president Robert P. Linn as a director and James Logan as a senior vice president.

New vice presidents at Ferris are Peter L. Hilgartner, Thomas K. Metz and Frank C. Vogel.

Winslow is a trustee of WETA and chairwoman of the advisory committee for the MBA program at Trinity College. She is married to retired Air Force Maj. Gen. Robert N. Ginsburgh and has six children between the ages of 15 and 28. Behn heads the Board of Trade's youth activites division and has been an active supporter of the House of Ruth, a place for homeless women.