prior to founding wynnefield, nelson obus and landes both held senior research equity positions at lazard feres & co. nelson obus currently serves on the board of directors for zionist organization of america, layne christensen co., mk acquisition llc, and the princeton historical society. obus also serves on the board of advisors of the bank of princeton, the appalachian mountain club, and the stony brook-millstone watershed association. he previously served on the boards of directors of breeze-eastern corporation and underground solutions, inc.