Sybil Primis, the mother of Lance Primis, a former president and chief operating officer of The New York Times Co., died Tuesday at South Nassau Hospital in Oceanside, N.Y. Mrs. Primis, who lived in Valley Stream, N.Y., was 87.

Mrs. Primis, the former Sybil Schiller, was born in Brooklyn and educated in the New York City public school system.

Besides her sons, Lance, of Holmdel, N.J., and Ronald, of East Meadow, N.Y.; survivors include a daughter, Sondra Plotkin of Valley Stream; seven grandchildren; and two great-grandchildren.