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

G4S, Which Employed Mateen, Sees its Shares Plunge

By
Reuters
Reuters
and
Fortune Editors
Fortune Editors
Down Arrow Button Icon
By
Reuters
Reuters
and
Fortune Editors
Fortune Editors
Down Arrow Button Icon
June 13, 2016, 8:04 AM ET
At Least 50 Dead In Mass Shooting At Gay Nightclub In Orlando
ORLANDO, FLORIDA - JUNE 12: Orlando police officers seen outside of Pulse nightclub after a fatal shooting and hostage situation on June 12, 2016 in Orlando, Florida. The suspected shooter, Omar Mateen, was shot and killed by police. 50 people are reported dead and 53 were injured. (Photo by Gerardo Mora/Getty Images)Gerardo Mora — Getty Images

News that a G4S employee was the gunman who killed 50 people at a packed gay nightclub in Florida wiped almost 200 million pounds ($282.80 million) off the value of the world’s largest security firm.

Omar Mateen, 29, a Florida resident and U.S. citizen, had undergone company screening as recently as 2013 with “no adverse findings,” his British-based employer G4S said on Sunday. It said it was “deeply shocked” by the “tragic events.”

When trading opened in London on Monday, shares in G4S lost 6.6 percent to 175 pence to hit their lowest level since 2009.

An analyst who declined to be named said the incident could cause more damage to G4S after a long line of issues.

“It doesn’t help having their name in the press against something like that,” the analyst said.

Mateen was employed at a gated retirement community in South Florida. He underwent two instances of company screening and background checks – once when he was hired in 2007, and again in 2013. At that time, the company learned that Mateen had been questioned by the FBI but that the inquiries were then closed.

G4S has a checkered recent history after it failed to provide enough guards for the London Olympics in 2012, was then involved in a tagging fiasco the following year, and earlier this year took a 65 million pound charge on loss-making British government contracts.

G4S wasn’t alone in missing Mateen’s susceptibility to violence. The FBI twice investigated the 29 year-old Orlando shooter in connexion with suspected radical leanings, but interviews with him failed to establish any firm ties to terror groups. G4S noted that Mateen “was also subject to checks by a U.S. law enforcement agency with no findings reported to G4S.”

About the Authors
By Reuters
See full bioRight Arrow Button Icon
Fortune Editors
By Fortune Editors
See full bioRight Arrow Button Icon

Latest in International

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

Most Popular

Thousands of CEOs admit AI had no impact on employment or productivity—and it has economists resurrecting a paradox from 40 years ago
AI
Thousands of CEOs admit AI had no impact on employment or productivity—and it has economists resurrecting a paradox from 40 years ago
By Sasha RogelbergApril 19, 2026
1 day ago
Markets shudder as Strait of Hormuz starts resembling a combat zone. 'We're prepared to subject you to disabling fire'
Energy
Markets shudder as Strait of Hormuz starts resembling a combat zone. 'We're prepared to subject you to disabling fire'
By Jason MaApril 19, 2026
22 hours ago
The explosion of U.S. debt is wiping out the 'safety premium' of Treasury bonds, and time is running out for an orderly fiscal solution, IMF warns
Economy
The explosion of U.S. debt is wiping out the 'safety premium' of Treasury bonds, and time is running out for an orderly fiscal solution, IMF warns
By Jason MaApril 19, 2026
1 day ago
Elon Musk bans résumés and cover letters in hiring for his chip team. These are the 3 bullet points he’s looking for instead
Future of Work
Elon Musk bans résumés and cover letters in hiring for his chip team. These are the 3 bullet points he’s looking for instead
By Jake AngeloApril 19, 2026
1 day ago
'We should absolutely be concerned about noncollege-educated men today': higher rents, living at home, falling out of the labor market
Economy
'We should absolutely be concerned about noncollege-educated men today': higher rents, living at home, falling out of the labor market
By Catherina GioinoApril 18, 2026
3 days ago
Jensen Huang bans one-on-one meetings, and Airbnb's Brian Chesky doesn't use email—meet the CEOs with unconventional work-life rules
Success
Jensen Huang bans one-on-one meetings, and Airbnb's Brian Chesky doesn't use email—meet the CEOs with unconventional work-life rules
By Emma BurleighApril 19, 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.