| Year | Detail |
| 1866 |
Cadwallader Washburn built his first mill in Minneapolis, Minnesota, which would become the foundation of General Mills. |
| 1928 |
On June 20, 1928, then Washburn-Crosby President James Ford Bell merged the flour mill with four other mills, and General Mills was born. |
| 1931 |
The company launched Bisquick, a pre-mixed baking product that became an essential staple in many American households. General Mills developed Bisquick to simplify the process of preparing baked goods. |
| 1953 |
General Mills collaborated with the University of Minnesota to develop an early version of what is now known as the Black Box for airplanes. This device was formally called a flight data recorder. |
| 1970 |
The company first moved into the restaurant industry by purchasing Red Lobster, a seafood restaurant chain. Under the company's ownership, Red Lobster expanded rapidly, becoming a nationwide chain known for its casual dining atmosphere and focus on seafood. |
| 1977 |
General Mills acquired the U.S. licensing rights to produce and market Yoplait, a yogurt brand. With this acquisition, the company introduced Yoplait to the American market. |
| 2001 |
The company acquired the Pillsbury Company from Diageo, a British multinational beverage company. This landmark deal significantly expanded the company's portfolio of brands and products. |
| 2018 |
General Mills acquired Blue Buffalo, a premium pet food company, for approximately $8 million. This acquisition marked General Mills' entry into the pet food market and was a strategic move to diversify its portfolio. |
| 2021 |
To expand its portfolio in the pet food business, General Mills acquired Tyson Foods’ pet treats business for $1.2 billion in cash. It also acquired a manufacturing facility in Independence, Iowa. |
| 2021 |
General Mills completely acquired the European Yoplait operations as part of the transaction with Sodiaal. It also acquired the full ownership of the Canadian Yoplait business. |
| 2022 |
The company acquired TNT Crust, a manufacturer of high-quality frozen pizza crusts for regional and national pizza chains, food service distributors, and retail outlets, to expand its portfolio in the frozen baked goods category. |
| 2023 |
The company acquired Fera Pets, Inc., a vet-founded pet supplement company, bringing new health-focused offerings to General Mills’ pet portfolio. |
| 2024 |
The company sold its North American Yogurt business to Lactalis and Sodiaal, two leading French dairy companies, in cash transactions valued at $2.1 billion. |
| 2024 |
The company has entered into an agreement to acquire Whitebridge Pet Brands’ North American premium Cat feeding and Pet treating business from NXMH in a transaction valued at $1.45 billion. |