Walgreens drugstore with red neon sign on a quiet street at night
© History Oasis

WALGREENS ACQUISITIONS & MERGERS


5 min read

LIST OF KEY MERGERS & ACQUISITIONS OF WALGREENS OVER THE YEARS

  • Acquired malted milkshake company started by Walgreens employee Ivar “Pop” Coulson (1922)
  • Acquired Sanborns pharmacy and department store chain in Mexico (1946)
  • Acquired MediMart pharmacy chain from Stop & Shop (1986)
  • Acquired Happy Harry’s pharmacy chain (2006)
  • Acquired Duane Reade pharmacy chain in New York City area (2010)
  • Acquired 45% stake in Alliance Boots (2012)
  • Acquired USA Drug, Super D Drug, May’s Drug, Med-X, and Drug Warehouse pharmacy chains (2012)
  • Acquired Kerr Drug pharmacy chain (2013)
  • Acquired remaining 55% stake in Alliance Boots to fully merge companies into Walgreens Boots Alliance (2014)
  • Acquired pharmaceutical company Almus (2014)
  • Acquired 1,932 Rite Aid pharmacy stores (2017)

MALTED MILKSHAKE COMPANY

Milk Shake Machine
© History Oasis

In 1922, Walgreens employee Ivar “Pop” Coulson transformed the standard malted milk by adding vanilla ice cream, creating the Walgreens milkshake.

The company bought Coulson’s recipe and sold these milkshakes for 20 cents at their soda fountains.

The drink’s popularity turned Walgreens stores into social hubs for teenagers and set the company apart from other pharmacies in the 1920s.

SANBORNS

Sanborns storefront with red lettering on a weathered stucco building
Sanborns storefront © History Oasis

Walgreens bought Sanborns, a major Mexican retail chain, in 1946.

The purchase gave Walgreens its first international presence through Sanborns’ network of pharmacies and department stores.

After 36 years of ownership, Walgreens sold Sanborns to Grupo Carso in 1982 to concentrate on its U.S. pharmacy operations.

MEDIMART

Medimart pharmacy interior illustration with red sign, stocked shelves and counter stools
Medimart pharmacy interior © History Oasis

In 1986, Walgreens purchased MediMart from Stop & Shop, adding 80 pharmacy locations to its network.

The acquisition targeted MediMart’s established presence in the Northeast retail market.

Though financial terms remained private, Walgreens gained prime store locations and detailed prescription records.

HAPPY HARRY’S

Illustrated drugstore counter with red stools under a sign misspelled Happy Hairy's
Illustrated drugstore counter © History Oasis

Walgreens acquired Happy Harry’s pharmacy chain in July 2006, gaining 76 stores across Delaware, Pennsylvania, Maryland and New Jersey.

This purchase expanded Walgreens’ East Coast presence as part of its strategy to absorb regional competitors.

The deal, with undisclosed terms, secured prime retail locations in northeastern markets.

DUANE READE

Illustrated corner drugstore with a red sign misspelled Duine Reade
Illustrated corner drugstore © History Oasis

In 2010, Walgreens bought Duane Reade, New York City’s largest pharmacy chain, for $1.075 billion.

The purchase secured Walgreens’ dominance in New York’s pharmacy market, while maintaining the Duane Reade brand name on select stores.

ALLIANCE BOOTS

Illustrated Alliance Boots pharmacy storefront on a village street at dusk
Alliance Boots pharmacy storefront © History Oasis

In June 2012, Walgreens bought a 45% stake in Alliance Boots, Europe’s largest pharmacy retailer and drug distributor, for $6.7 billion.

This Swiss-based investment marked Walgreens’ first major step beyond the U.S. market.

While Walgreens held minority ownership, the deal laid groundwork for a future merger between both companies.

USA DRUG, SUPER D DRUG, MAY’S DRUG, MED-X, & DRUG WAREHOUSE

Illustrated Med-X pharmacy storefront with windows full of medicine bottles
Med-X pharmacy storefront © History Oasis

In 2012, Walgreens bought 144 pharmacies across the Midwest and South, including USA Drug, Super D Drug, May’s Drug, Med-X, and Drug Warehouse.

This purchase expanded Walgreens’ presence in new markets by acquiring established local pharmacy brands.

KERR DRUG

Illustrated Kerr Drug store with red rooftop sign on an empty street
Kerr Drug store © History Oasis

Walgreens bought Kerr Drug’s 76 North Carolina stores in September 2013, expanding its presence in the Southeast and absorbing a regional competitor.

The acquisition gave Walgreens established retail locations, existing customer relationships, and distribution networks across North Carolina.

WALGREENS BOOTS ALLIANCE

WALGREENS BOOTS ALLIANCE
© History Oasis

Walgreens bought Alliance Boots in two steps: 45% in 2012, then the remaining 55% for $5 billion in 2014.

The merger united America’s biggest pharmacy chain with Britain’s leading drug wholesaler under the name Walgreens Boots Alliance.

With headquarters in Illinois and Switzerland, the company now controlled drug markets in both North America and Europe.

ALMUS

Pink and purple capsule pill printed with the misspelled word Almius
Capsule pill © History Oasis

In 2014, Walgreens acquired Almus Pharmaceuticals, a Mexican manufacturer of specialty generic drugs, from Acino.

While the purchase price remained private, this vertical integration gave Walgreens direct control over generic drug production and distribution.

RITE AID

Rite Aid drugstore on a desert roadside with mountains behind
Rite Aid drugstore © History Oasis

Walgreens bought 1,932 Rite Aid stores for $4.38 billion in 2017, after regulators blocked its earlier attempts to acquire the entire company.

This purchase made Walgreens the largest U.S. pharmacy chain, with over 10,000 locations.