The Whole Foods Market on Westlake Avenue near Amazon’s Seattle campus. (Whole Foods Photo)

Amazon announced today that its $13.7 billion acquisition of Whole Foods will close this Monday, Aug. 28, and revealed how it plans to lower prices and integrate its Prime membership program into the Whole Foods checkout process.

The deal, first announced in June and approved by Whole Foods shareholders Wednesday, will give Amazon a massive physical retail footprint. Whole Foods, which started in Austin, Texas in 1980, operates 468 stores in North America and the United Kingdom.

Amazon said that starting Monday, it will lower prices of items at Whole Foods like organic bananas, brown eggs, salmon, ground beef, and more. It also plans to “make Amazon Prime the customer rewards program at Whole Foods Market and continuously lower prices as we invent together,” as Jeff Wilke, CEO of Amazon’s consumer business, said in a press release.

Amazon will place its Amazon Lockers package pickup machines in some Whole Foods stores. It will also make Whole Foods’ private label products available on its website, on AmazonFresh, on Prime Pantry, and Prime Now.

Whole Foods CEO John Mackey will stay in his current role, and Whole Foods’ HQ will remain in Austin. The grocer will maintain operations under its current brand.

“It’s been our mission for 39 years at Whole Foods Market to bring the highest quality food to our customers,” Mackey said in a statement. “By working together with Amazon and integrating in several key areas, we can lower prices and double down on that mission and reach more people with Whole Foods Market’s high-quality, natural and organic food.”

Shares of other large grocers like Kroger, Costco, Target, and Walmart were down on Thursday after the announcement.

The Whole Foods deal is part of Amazon’s growing grocery retail footprint, as the company also recently opened two AmazonFresh Pickup stores in Seattle and is testing the first checkout-free Amazon Go convenience store. It is also expanding its physical bookstores across the country.

“We’re determined to make healthy and organic food affordable for everyone,” Wilke, who will speak at the upcoming GeekWire Summit, said in a statement. “Everybody should be able to eat Whole Foods Market quality – we will lower prices without compromising Whole Foods Market’s long-held commitment to the highest standards.”

The acquisition also shows Amazon’s continued expansion of Prime. Members who pay $99 per year or $10.99 per month receive benefits like free 2-day shipping, cloud storage, streaming media, and access to exclusive deals. Soon they will also get deals on Whole Foods purchases. Consumer Intelligence Research Partners noted last month Prime members spend $1,300 per year on average with the site, compared to $700 for non-members. The Whole Foods deal is yet another way for Amazon to attract more members.

Here’s the full release:

Amazon and Whole Foods Market Announce Acquisition to Close This Monday, Will Work Together to Make High-Quality, Natural and Organic Food Affordable for Everyone

SEATTLE & AUSTIN, Texas–(BUSINESS WIRE)–Aug. 24, 2017– (NASDAQ:AMZN)–Amazon and Whole Foods Market today announced that Amazon’s acquisition of Whole Foods Market will close on Monday August 28, 2017, and the two companies will together pursue the vision of making Whole Foods Market’s high-quality, natural and organic food affordable for everyone. As a down payment on that vision, Whole Foods Market will offer lower prices starting Monday on a selection of best-selling grocery staples across its stores, with more to come.

In addition, Amazon and Whole Foods Market technology teams will begin to integrate Amazon Prime into the Whole Foods Market point-of-sale system, and when this work is complete, Prime members will receive special savings and in-store benefits. The two companies will invent in additional areas over time, including in merchandising and logistics, to enable lower prices for Whole Foods Market customers.

“We’re determined to make healthy and organic food affordable for everyone. Everybody should be able to eat Whole Foods Market quality – we will lower prices without compromising Whole Foods Market’s long-held commitment to the highest standards,” said Jeff Wilke, CEO of Amazon Worldwide Consumer. “To get started, we’re going to lower prices beginning Monday on a selection of best-selling grocery staples, including Whole Trade organic bananas, responsibly-farmed salmon, organic large brown eggs, animal-welfare-rated 85% lean ground beef, and more. And this is just the beginning – we will make Amazon Prime the customer rewards program at Whole Foods Market and continuously lower prices as we invent together. There is significant work and opportunity ahead, and we’re thrilled to get started.”

“It’s been our mission for 39 years at Whole Foods Market to bring the highest quality food to our customers,” said John Mackey, Whole Foods Market co-founder and CEO. “By working together with Amazon and integrating in several key areas, we can lower prices and double down on that mission and reach more people with Whole Foods Market’s high-quality, natural and organic food. As part of our commitment to quality, we’ll continue to expand our efforts to support and promote local products and suppliers. We can’t wait to start showing customers what’s possible when Whole Foods Market and Amazon innovate together.”

Here’s what will be new in Whole Foods Market stores on Monday and what customers can expect over time as the two companies integrate:

Starting Monday, Whole Foods Market will offer lower prices on a selection of best-selling staples across its stores, with much more to come. Customers will enjoy lower prices on products like Whole Trade bananas, organic avocados, organic large brown eggs, organic responsibly-farmed salmon and tilapia, organic baby kale and baby lettuce, animal-welfare-rated 85% lean ground beef, creamy and crunchy almond butter, organic Gala and Fuji apples, organic rotisserie chicken, 365 Everyday Value organic butter, and much more.

In the future, after certain technical integration work is complete, Amazon Prime will become Whole Foods Market’s customer rewards program, providing Prime members with special savings and other in-store benefits.

Whole Foods Market’s healthy and high-quality private label products–including 365 Everyday Value, Whole Foods Market, Whole Paws and Whole Catch–will be available through Amazon.com, AmazonFresh, Prime Pantry and Prime Now.

Amazon Lockers will be available in select Whole Foods Market stores. Customers can have products shipped from Amazon.com to their local Whole Foods Market store for pick up or send returns back to Amazon during a trip to the store.

This is just the beginning – Amazon and Whole Foods Market plan to offer more in-store benefits and lower prices for customers over time as the two companies integrate logistics and point-of-sale and merchandising systems.

Whole Foods Market will continue to grow its team and create jobs in local communities as it opens new stores, hires new team members, and expands its support of local farmers and artisans. The company will maintain operations under the Whole Foods Market brand, preserve its high standards and commitment to providing the finest natural and organic foods, and continue to source from trusted vendors and partners around the world. John Mackey will remain as CEO and Whole Foods Market’s headquarters will stay in Austin, Texas.

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