Post Holdings vs Walmart: Founders, CEOs and History
Post Holdings was founded in 2012 by William P. Stiritz and is led by Nicolas Catoggio. Walmart was founded in 1962 by Sam Walton and is led by John Furner.
Company facts
Post Holdings
- Founded
- 2012
- Headquarters
- St. Louis, Missouri
- Current CEO
- Nicolas Catoggio
- Employees
- 13,180
Walmart
- Founded
- 1962
- Headquarters
- Bentonville, Arkansas
- Current CEO
- John Furner
- Employees
- 2,100,000
Founders
Post Holdings
William P. Stiritz
William P. Stiritz is the founding Chairman and CEO of the modern Post Holdings. When Ralcorp spun off its Post cereal business in February 2012, Stiritz took charge of the new company and began the acquisition strategy that later added Michael Foods and MOM B…
Walmart
Sam Walton
Sam Walton opened the first Walmart Discount City in Rogers, Arkansas in 1962 and built the company around low prices, low costs, and its own distribution network. He served as CEO until 1988 and remained chairman until his death in 1992.
CEOs and their tenures
Post Holdings
- William P. Stiritz2012–2014
Chairman and Chief Executive Officer
As the legendary Chairman and former CEO, the highly revered financial architect completely defined the company's complex, private-equity-style corporate structure.
Source - Robert V. Vitale2014–present
Executive Chairman (CEO 2014-2026)
Previously Post's CFO; from October 1, 2026 advises on capital allocation as Executive Chairman.
Source - Matthew J. Mainer2022–present
Chief Financial Officer and Treasurer
As CFO, he steers the company's aggressive, highly acquisitive capital allocation strategy, acting as the primary architect behind its massive M&A playbook.
Source - Nicolas Catoggio2026–present
President and Chief Executive Officer
Former Boston Consulting Group Managing Director and Senior Partner who advised Post on M&A diligence and integrations before joining.
Source
Walmart
- Sam Walton1962–1988
Founder and CEO
Founded Walmart and set its low-price, low-cost operating approach.
Source - Doug McMillon2014–2026
Former President and CEO
Led Walmart's push into ecommerce, marketplace, advertising, and store-fulfilled delivery, and oversaw the Jet.com, Flipkart, and VIZIO deals.
Source - Greg Penner2015–present
Chairman of the Board
He successfully managed the transition of corporate leadership to Doug McMillon and actively oversees the Walton family's controlling stake in the retail giant.
Source - John David Rainey2022–present
Executive Vice President and CFO
As CFO, he aggressively executed multi-billion-dollar share repurchases while funding massive capital expenditures for store remodels and automation.
Source - John Furner2026–present
President and CEO
Became President and CEO on February 1, 2026, succeeding Doug McMillon. He reshaped the executive team with internal promotions in January 2026.
Source - David Guggina2026–present
President and CEO, Walmart U.S.
As head of supply chain operations, he modernized the underlying logistics network that allowed Walmart to successfully compete with Amazon's two-day delivery speeds.
Source
Timeline: Post Holdings and Walmart side by side
1962Walmart
First Walmart Opens
Sam Walton opens the first Walmart Discount City in Rogers, Arkansas.
1970Walmart
Walmart Goes Public
Walmart sells shares to the public to fund expansion.
1983Walmart
Sam's Club Launches
The first Sam's Club warehouse club opens in Midwest City, Oklahoma.
1988Walmart
First Supercenter and New CEO
Walmart opens its first supercenter, and David Glass succeeds Sam Walton as CEO.
2000Walmart
Lee Scott Becomes CEO
Lee Scott succeeds David Glass as CEO.
2012Post Holdings
Post Holdings Spin-Off
Post completed its separation from Ralcorp and began trading on the NYSE.
2014Post Holdings
Michael Foods Acquisition
Post expanded into egg products and foodservice through Michael Foods.
2014Walmart
Doug McMillon Becomes CEO
Doug McMillon, who started as an hourly associate in 1984, becomes CEO.
2015Post Holdings
MOM Brands Acquisition
Post broadened its cereal portfolio with MOM Brands.
2016Walmart
Jet.com Acquisition
Walmart buys Jet.com for about $3.3 billion to strengthen its U.S. ecommerce team.
2017Post Holdings
Weetabix Acquisition
Post added the U.K. Weetabix cereal business.
2018Post Holdings
Bob Evans Acquisition
Post expanded refrigerated retail and foodservice exposure.
2018Walmart
Flipkart Investment
Walmart acquires a majority stake in Flipkart for about $16 billion.
2024Walmart
VIZIO Acquisition
Walmart completes its $2.3 billion purchase of smart-TV maker VIZIO to expand its advertising business.
2025Post Holdings
8th Avenue Acquired
Post acquired the remaining interest in 8th Avenue Food & Provisions.
2026Post Holdings
CEO Transition
Nicolas Catoggio became President and CEO on October 1, 2026.
2026Walmart
John Furner Becomes CEO
John Furner succeeds Doug McMillon as President and CEO effective February 1, 2026; David Guggina takes over Walmart U.S.
2026Walmart
Q2 FY27 Results
Walmart reports Q2 FY27 revenue of $187.9 billion, up 5.9%, and raises full-year sales and operating income guidance.
Acquisitions
Post Holdings
- 8th Avenue Food & Provisions2025Undisclosed
- Pet Food Portfolio (J.M. Smucker)2023$1.2B
- Bob Evans Farms2018$1.5B
- Weetabix2017Undisclosed
- MOM Brands (Malt-O-Meal)2015$1.1B
- Michael Foods2014$2.5B
Questions about Post Holdings vs Walmart
Who is the CEO of Post Holdings, Inc. and Walmart Inc.?
Post Holdings, Inc. is led by Nicolas Catoggio and Walmart Inc. is led by John Furner. Both serve as the top executive responsible for the company's strategy, operations, and financial performance.
When was Post Holdings, Inc. founded vs Walmart Inc.?
Walmart Inc. was founded in 1962 — 50 years before Post Holdings, Inc., which was founded in 2012. Walmart Inc.'s longer operating history gives it a deeper track record but also potentially more institutional inertia compared to the younger Post Holdings, Inc..
How many employees does Post Holdings, Inc. have compared to Walmart Inc.?
Post Holdings, Inc. employs approximately 13,180 people, while Walmart Inc. employs approximately 2,100,000. Walmart Inc. has the larger workforce at 2,100,000 employees, compared to Post Holdings, Inc.'s 13,180. A higher headcount does not necessarily imply greater efficiency — it often reflects differences in business model (e.g., manufacturing vs. software).
Where are Post Holdings, Inc. and Walmart Inc. headquartered?
Both Post Holdings, Inc. and Walmart Inc. are headquartered in United States, meaning they operate under the same primary regulatory and tax environment.
Who founded Post Holdings, Inc. and Walmart Inc.?
Post Holdings, Inc. was founded by William P. Stiritz. Walmart Inc. was founded by Sam Walton.
Which company has a longer operating history — Post Holdings, Inc. or Walmart Inc.?
Walmart Inc. has been operating for approximately 64 years, making it the more established of the two companies. Post Holdings, Inc. has been in operation for around 14 years. A longer operating history often signals greater institutional resilience and brand recognition, though it can also mean slower adaptation to new market conditions.
Figures come from each company's filings and the sources linked beside them. Amounts reported in another currency are shown in US dollars at an approximate rate and marked with ~. Back to the Post Holdings vs Walmart overview