0000927016-98-002697 8-K 4 19980702 2 7 19980717 NYSE BOSTON PROPERTIES INC 0001037540 6500 042473675 DE 1231 8-K 34 001-13087 98668229 8 ARLINGTON ST BOSTON MA 02116 6178592600 8 ARLINGTON ST 8 ARLINGTON ST BOSTON MA 02116 8-K 1 000092701698002697-001-seq1-8-k.txt FORM 8-K CURRENT REPORT EX-99.1 2 000092701698002697-002-seq2-ex-99-1.txt PURCHASE AND SALE AGREEMENT EX-99.2 3 000092701698002697-003-seq3-ex-99-2.txt CONTRIBUTION AGREEMENT EX-99.3 4 000092701698002697-004-seq4-ex-99-3.txt REGISTRATION RIGHTS AGREEMENT