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

Theranos may be seeking to raise $200 million in new funding

By
Dan Primack
Dan Primack
Down Arrow Button Icon
By
Dan Primack
Dan Primack
Down Arrow Button Icon
October 28, 2015, 1:45 PM ET
Sam Waksal is no stranger to biopharma controversy.
Sam Waksal is no stranger to biopharma controversy.Photograph by Stuart Isett — Fortune Most Powerful Women

Theranos, the controversial blood-testing startup that has been valued at $9 billion by private investors, recently decided to raise upwards of $200 million in new funding, according to regulatory filings the company made in Delaware (which were first noticed by VCExperts.com).

The new “Series C-3” stock authorization filing came just three days before a Wall Street Journal report questioned the efficacy of Theranos’s technology, and even suggested that the Silicon Valley company had tried to cheat on its lab proficiency tests. It had been approved by the company’s board of directors nearly one month earlier, on Sept. 19.

It is important to note that authorized shares have not necessarily been issued or sold. For example, other filings show that Theranos authorized the sale of 11.7 million “Series C-2” shares at $17 a piece back in February 2014. It then increased that amount this past January to a whopping 58.8 million shares at the same $17 per share price. But shortly thereafter, Theranos said in a different filing that it only had issued a total of 32.2 million of the authorized Series C-2 stock.

Theranos does not comment on its fundraising, so it is unclear exactly how much the company has raised to date. That said, the company did share some information for a Fortune cover story published in June 2014, at which time we reported that the company had raised around $400 million in total funding (at the $9 billion valuation). If we assume that it already had sold the first piece of that Series C-2 round, then the extra shares sold this past spring would put its total capital raised at around $750 million. And that’s before anything it raises from the new share authorization.

The company also keeps the identifies of its shareholders close to the vest, having previously identified just a small handful like Draper Fisher Jurvetson (which only committed $500,000 in a seed round), ATA Ventures, Tako Ventures, former board member Don Lucas and Oracle (ORCL) founder Larry Ellison.

Fortune has since learned, however, of several more investors that have never been otherwise disclosed. They include: BlueCross BlueShield Venture Partners, Continental Properties Co., Esoom Enterprise (Taiwan), Jupiter Partners, Palmieri Trust, Partner Fund Management, Dixon Doll, Ray Bingham and B.J. Cassin.

None of the investors Fortune managed to contact confirmed their involvement on the record, but two we spoke with on background said that they receive relatively little financial information from the company.

We also have heard from multiple sources that certain existing Theranos shareholders have been seeking to sell some stock via secondary exchanges, although have been unable to learn the identities of those holders.

A Theranos spokeswoman did not return requests for comment.

Theranos founder and CEO Elizabeth Holmes is scheduled to be interviewed next week at the Fortune Global Forum in San Francisco.

About the Author
By Dan Primack
See full bioRight Arrow Button Icon

Latest in Finance

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 Finance

sheryl
HealthLean In
Sheryl Sandberg tapped a 25-year-old to run Lean In. Here’s her plan to close the AI gender gap
By Jacqueline MunisApril 1, 2026
2 hours ago
MUSCAT, OMAN - MARCH 22: The Albina Bulk carrier sits anchored on March 22, 2026 at Sultan Qaboos Port in Muscat, Oman.President Donald Trump had threatened to attack Iran's energy infrastructure if it did not end its de facto blockade of the Strait of Hormuz by just before midnight GMT of March 23. A subsequent statement from President Trump said the U.S. and Iran had held "very good and productive conversations regarding a complete and total resolution of our hostilities in the Middle East," and that he would postpone any attacks on Iranian energy infrastructure for five days. Maritime traffic through the strait, which conveys about 20% of the world's oil and gas, has mostly come to a halt after the joint U.S.-Israeli war with Iran that began on February 28.
EnergyIran
Trump has a labyrinth of bad options in the Strait of Hormuz. Here’s why some warn that walking away could transcend ‘our defeat in Vietnam’
By Jordan BlumMarch 31, 2026
8 hours ago
Bernard Looney, CEO of Prometheus Hyperscale
EnergyBP
Former BP CEO takes over Wyoming data center developer, as first woman leader of Big Oil giant becomes new BP chief
By Jordan BlumMarch 31, 2026
8 hours ago
Wall Street just had its best day in nearly a year over a rumor
EconomyMarkets
Wall Street just had its best day in nearly a year over a rumor
By Eva RoytburgMarch 31, 2026
9 hours ago
Bobby Witt Jr. throws a baseball. He is standing in front of a FanDuel sign on a baseball field.
Bankinggambling
Credit card delinquencies among millennials and Gen Z have soared because of sports betting—even in states where it’s illegal, new Fed study finds
By Sasha RogelbergMarch 31, 2026
9 hours ago
hegseth
EnergyWhite House
‘Go get your own oil’: Trump’s message to allies who haven’t backed war in Iran
By Jon Gambrell, Mike Corder, Darlene Superville and The Associated PressMarch 31, 2026
9 hours ago

Most Popular

Jerome Powell says the $39 trillion national debt is ‘not unsustainable,’ but warns the trajectory ‘will not end well’
Economy
Jerome Powell says the $39 trillion national debt is ‘not unsustainable,’ but warns the trajectory ‘will not end well’
By Fortune EditorsMarch 30, 2026
1 day ago
A man used AI to call 3,000 Irish bartenders to track the cost of Guinness. Now pubs are lowering their prices to compete
AI
A man used AI to call 3,000 Irish bartenders to track the cost of Guinness. Now pubs are lowering their prices to compete
By Fortune EditorsMarch 30, 2026
2 days ago
Markets cheer as Trump threatens to abandon Iran war, but Jamie Dimon sides with allies: ‘Win this thing and clean up the straits’
Energy
Markets cheer as Trump threatens to abandon Iran war, but Jamie Dimon sides with allies: ‘Win this thing and clean up the straits’
By Fortune EditorsMarch 31, 2026
15 hours ago
The federal government shed 385,000 employees last year. Now the Trump administration is on a blitz to hire Gen Z workers
Politics
The federal government shed 385,000 employees last year. Now the Trump administration is on a blitz to hire Gen Z workers
By Fortune EditorsMarch 31, 2026
23 hours ago
A CEO trying to reindustrialize America says blue-collar pay is headed for 'massive hyperinflation' and kids should skip college to become welders
Success
A CEO trying to reindustrialize America says blue-collar pay is headed for 'massive hyperinflation' and kids should skip college to become welders
By Fortune EditorsMarch 30, 2026
2 days ago
Current price of gold as of March 30, 2026
Personal Finance
Current price of gold as of March 30, 2026
By Fortune EditorsMarch 30, 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.