• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
TechMeta

Meta CEO Mark Zuckerberg grilled on the witness stand — ‘I don’t have the full timeline of Instagram’s development in my head’

By
Brian Witte
Brian Witte
,
Barbara Ortutay
Barbara Ortutay
, and
The Associated Press
The Associated Press
Down Arrow Button Icon
By
Brian Witte
Brian Witte
,
Barbara Ortutay
Barbara Ortutay
, and
The Associated Press
The Associated Press
Down Arrow Button Icon
April 15, 2025, 3:43 AM ET
Mark Zuckerberg, chief executive officer of Meta Platforms Inc., center, arrives following a break during a Senate Judiciary Committee hearing in Washington, DC, US, on Wednesday, Jan. 31, 2024. Congress has increasingly scrutinized social media platforms as growing evidence suggests that excessive use and the proliferation of harmful content may be damaging young people's mental health.
Mark Zuckerberg, chief executive officer of Meta Platforms, in 2024.Kent Nishimura/Bloomberg via Getty Images

Meta CEO Mark Zuckerberg took to the witness stand on the first day of a historic antitrust trial to defend his company against allegations it illegally monopolized the social media market.

Recommended Video

The trial could force the tech giant to break off Instagram and WhatsApp, startups Meta bought more than a decade ago that have since grown into social media powerhouses.

FTC attorney Daniel Matheson called Zuckerberg as the first witness, as it seeks to prove that Meta acquired Instagram and WhatsApp to preserve its monopoly in the social networking space.

At the trial, Matheson focused on a communication sent to colleagues that illustrated Zuckerberg’s frustration with a lack of progress on developing a photo-sharing app to compete with Instagram’s.

“The way I read this message is that I’m not happy about how we’re executing on that project,” Zuckerberg said.

Matheson followed up by asking if that was because of Instagram’s rapid growth.

“That does seem to be what I’m highlighting,” Zuckerberg said, adding that he’s always urging his teams to do better.

Later in the day, Zuckerberg appeared frustrated when Matheson asked him about his concerns expressed about how fast Instagram was growing.

“I don’t have the full timeline of Instagram’s development in my head,” Zuckerberg said, when Matheson asked him about his mention of its growth. “You could probably get that better from somebody else.”

Matheson also asked about comments of plans to keep Instagram running, while focusing on Facebook and not investing in Instagram. Zuckerberg said he wouldn’t characterize it as a plan, and he insisted that Instagram wasn’t neglected.

“In practice, we ended up investing a ton in it after we acquired it,” Zuckerberg, who testified most of the afternoon, said.

In opening statements, Matheson said Meta has used its position to generate enormous profits even as consumer satisfaction has dropped. He said Meta was “erecting a moat” to protect its interests by buying the two startups.

Mark Hansen, an attorney for Meta, said the FTC was making a “grab bag” of arguments that were wrong. He said Meta has plenty of competition and has made improvements to the startups it acquired.

“This lawsuit, in summary, is misguided,” Hansen said, adding: “anyway you look at it, consumers have been the big winners.”

The trial will be the first big test of President Donald Trump’s Federal Trade Commission’s ability to challenge Big Tech. The lawsuit was filed against Meta — then called Facebook — in 2020, during Trump’s first term. It claims the company bought Instagram and WhatsApp to squash competition and establish an illegal monopoly in the social media market.

Meta, the FTC argues, has maintained a monopoly by pursuing Zuckerberg’s strategy, “expressed in 2008: ‘It is better to buy than compete.’ True to that maxim, Facebook has systematically tracked potential rivals and acquired companies that it viewed as serious competitive threats.”

Facebook also enacted policies designed to make it difficult for smaller rivals to enter the market and “neutralize perceived competitive threats,” the FTC says in its complaint, just as the world shifted its attention to mobile devices from desktop computers.

Facebook bought Instagram — then a scrappy photo-sharing app with no ads and a small cult following — in 2012. The $1 billion cash and stock purchase price was eye-popping at the time, though the deal’s value fell to $750 million after Facebook’s stock price dipped following its initial public offering in May 2012.

Instagram was the first company Facebook bought and kept running as a separate app. Up until then, Facebook was known for smaller “acqui-hires” — a type of popular Silicon Valley deal in which a company purchases a startup as a way to hire its talented workers, then shuts the acquired company down. Two years later, it did it again with the messaging app WhatsApp, which it purchased for $22 billion.

WhatsApp and Instagram helped Facebook move its business from desktop computers to mobile devices, and to remain popular with younger generations as rivals like Snapchat (which it also tried, but failed, to buy) and TikTok emerged. However, the FTC has a narrow definition of Meta’s competitive market, excluding companies like TikTok, YouTube and Apple’s messaging service from being considered rivals to Instagram and WhatsApp.

Meta, meanwhile, says the FTC’s lawsuit “defies reality.”

“The evidence at trial will show what every 17-year-old in the world knows: Instagram, Facebook and WhatsApp compete with Chinese-owned TikTok, YouTube, X, iMessage and many others. More than 10 years after the FTC reviewed and cleared our acquisitions, the Commission’s action in this case sends the message that no deal is ever truly final. Regulators should be supporting American innovation, rather than seeking to break up a great American company and further advantaging China on critical issues like AI,” the company said in a statement.

In a filing last week, Meta also stressed that the FTC “must prove that Meta has monopoly power in its claimed relevant market now, not at some time in the past.” This, experts say, could also prove challenging since more competitors have emerged in the social media space in the years since the company bought WhatsApp and Instagram.

Meta’s fate will be decided by U.S. District Judge James Boasberg, who late last year denied Meta’s request for a summary judgment and ruled that the case must go to trial.

While the FTC may face an uphill battle in proving its case, the stakes are high for Meta, whose advertising business could be cut in half if it’s forced to spin off Instagram.

Meta isn’t the only technology company in the sights of federal antitrust regulators, Google and Amazon face their own cases. The remedy phase of Google’s case is scheduled to begin on April 21. A federal judge declared the search giant an illegal monopoly last August.

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
About the Authors
By Brian Witte
See full bioRight Arrow Button Icon
By Barbara Ortutay
See full bioRight Arrow Button Icon
By The Associated Press
See full bioRight Arrow Button Icon

Latest in Tech

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Tech

These startups are racing to make AI safe for the Pentagon’s most closely guarded secrets
AIDefense
These startups are racing to make AI safe for the Pentagon’s most closely guarded secrets
By Erik GermanApril 11, 2026
2 hours ago
karp
Future of Workpalantir
Palantir CEO says AI ‘will destroy’ humanities jobs but there will be ‘more than enough jobs’ for people with vocational training
By Jacqueline MunisApril 11, 2026
3 hours ago
A Starbucks barista stands behind a cash register.
RetailFood and drink
Starbucks’ game plan to roll out AI chatbots at cafés could serve as a ‘litmus test’ for the industry, analyst says
By Sasha RogelbergApril 11, 2026
3 hours ago
The ‘Tuscan Mom’ aesthetic is taking over TikTok as Gen Z glamorize McMansions and reject millennial gray
Travel & LeisureGen Z
The ‘Tuscan Mom’ aesthetic is taking over TikTok as Gen Z glamorize McMansions and reject millennial gray
By Sydney LakeApril 11, 2026
3 hours ago
dalmation
AIHealth
Man’s best friend may soon live a little longer thanks to a new pill promising to extend your pup’s lifespan
By Catherina GioinoApril 11, 2026
4 hours ago
hunt
CommentaryMedia
OpenAI’s TBPN deal shows how talent, media, and influence are collapsing into one
By Jonathan HuntApril 11, 2026
5 hours ago

Most Popular

Scottie Scheffler joined Tiger Woods and Rory McIlroy in golf's $100M club—and donated his entire Ryder Cup stipend to charity
Success
Scottie Scheffler joined Tiger Woods and Rory McIlroy in golf's $100M club—and donated his entire Ryder Cup stipend to charity
By Fortune EditorsApril 10, 2026
22 hours ago
Schools across America are quietly admitting that screens in classrooms made students worse off and are reversing years of tech-first policies
Innovation
Schools across America are quietly admitting that screens in classrooms made students worse off and are reversing years of tech-first policies
By Fortune EditorsApril 10, 2026
1 day ago
Mark Cuban admits he made a mistake letting go of the Mavericks: 'I don't regret selling. I regret who I sold to'
Investing
Mark Cuban admits he made a mistake letting go of the Mavericks: 'I don't regret selling. I regret who I sold to'
By Fortune EditorsApril 9, 2026
2 days ago
The Navy confirmed an ‘abundant amount’ of Uncrustables when the Artemis II crew lands. Smucker’s just offered them a lifetime supply
Politics
The Navy confirmed an ‘abundant amount’ of Uncrustables when the Artemis II crew lands. Smucker’s just offered them a lifetime supply
By Fortune EditorsApril 10, 2026
16 hours ago
The U.S. government is spending $88 billion a month in interest on national debt—equal to spending on defense and education combined
Economy
The U.S. government is spending $88 billion a month in interest on national debt—equal to spending on defense and education combined
By Fortune EditorsApril 9, 2026
2 days ago
A Meta employee created a dashboard so coworkers can compete to be the company's No. 1 AI token user—and Zuckerberg doesn't even rank in the top 250
AI
A Meta employee created a dashboard so coworkers can compete to be the company's No. 1 AI token user—and Zuckerberg doesn't even rank in the top 250
By Fortune EditorsApril 9, 2026
2 days ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.