DEERFIELD, Ill. — Walgreens Boots Alliance Inc. said Wednesday that its board of directors has declared a quarterly dividend of 45.75 cents per share, an increase of 4%. The increased dividend is payable September 12 to stockholders of record as of August 20.

The move raises the annual dividend rate from $1.76 per share to $1.83 per share. This marks the 44th consecutive year that Walgreens Boots Alliance and its predecessor company, Walgreen Co., have raised the dividend.