CANTON, MASS. — Dunkin’ Brands Group Inc. has announced a secondary offering of 22 million shares of its common stock at a price of $25.62 per share.

The stockholders who are selling the shares have given the underwriters a 30-day option to buy up to an additional 3.3 million shares at the same price.

Dunkin’ Brands, which owns Dunkin’ Donuts and the Baskin-Robbins ice cream chain, is not selling any shares and will not receive any of the proceeds from the offering.

Dunkin’ Brands held an initial public offering of its shares in July at $19. The company sold 22.3 million shares raising $422.8 million.

The company’s shares rose 38c, or 1.5%, to $26 in premarket trading on Nov. 17. Its shares traded as high as $31.94 in early August, but fell to a low of $24.74 on Nov. 14.