Kenneth Griffin Overview
- Investor Type
-
Angel
- Investments
-
10
- Portfolio
-
8
- Exits
-
1

Kenneth Griffin General Information
Description
Mr. Kenneth Griffin is the Founder and serves as Chief Executive Officer & Co-Chief Investment Officer at Citadel Enterprise Americas. Mr. Griffin is the Founder, Owner & serves as Chairman at Citadel Securities. He is an Angel Investor. A passionate philanthropist, Ken has donated more than $2 billion to advance education, opportunity, and health sciences initiatives that significantly transform people's lives. Intrigued by finance from a young age, Ken began investing in 1986 from his Harvard dorm room. The following year, he launched a small hedge fund that utilized emerging quantitative analytics to inform investment decision-making. In 1990, a year after graduating, he founded Citadel. Ken founded Citadel on the belief that extraordinary individuals, equipped with advanced quantitative analytics and powerful software, could unlock opportunities in the world's capital markets. A commitment to continuous learning, problem-solving, and meritocracy defines the firm's culture. Citadel is routinely ranked among the best places to work, and the firm's focus on advancing the careers of its team members is renowned on Wall Street. Today, Citadel's team of more than 3,000 professionals manages over $60 billion in investment capital. Citadel is recognized as one of the world's most profitable hedge funds. The Citadel team has delivered extraordinary results for pension plans, university endowments, hospital systems, foundations, and research institutions that deliver meaningful impact for society, from curing cancer with immunotherapy to making scientific breakthroughs in particle physics. In 2002, Ken and his partners established Citadel Securities as a market maker in the United States capital markets. Today, Citadel Securities is one of the world's largest liquidity providers, serving more than 1,600 institutional clients, including many of the world's largest central banks and sovereign wealth funds. Citadel Securities is recognized as a market leader in empowering clients to reach their investment goals and has proved transformative in enhancing competition in capital markets worldwide. Ken's decades of philanthropic involvement reflect the same strategic mindset that has contributed to his business success. Now advanced through Griffin Catalyst, Ken's contributions have expanded access to education at all levels for millions of Americans, transformed research and medical institutions with historic gifts, and strengthened our cultural institutions. Ken's insights were instrumental in the launch of Operation Warp Speed's accelerated COVID-19 vaccine development and deployment strategies. Ken holds an A.B. '89 with Honors in Economics from Harvard College.
Business Details
Primary Investor Type
Corporate Office
- Chicago, IL
- United States
Kenneth Griffin Investments (10)
Company Name | Deal Date | Deal Type | Deal Size | Industry | Company Stage | Lead Partner |
---|---|---|---|---|---|---|
Pacific Fusion | 06-Mar-2025 | Early Stage VC | Alternative Energy Equipment | Generating Revenue | ||
X Energy (USA) | 24-Jan-2025 | Alternative Energy Equipment | Generating Revenue | |||
DayOne (Systems and Information Management) | 01-Jan-2025 | Systems and Information Management | Generating Revenue | |||
Ignite Reading | 17-Jan-2023 | Educational and Training Services (B2C) | Generating Revenue | |||
Turion Space | 05-Dec-2022 | Aerospace and Defense | Generating Revenue | |||
SkinIO | 01-Jul-2022 | Decision/Risk Analysis | Generating Revenue | |||
GloriFi | 01-Jan-2022 | Financial Software | Out of Business | |||
Cohesion (Business/Productivity Software) | 23-Jul-2021 | Business/Productivity Software | Generating Revenue | |||
Cohesion (Business/Productivity Software) | 15-Jul-2020 | Seed Round | Business/Productivity Software | Generating Revenue | ||
Medici | 27-Apr-2020 | Early Stage VC | Clinics/Outpatient Services | Generating Revenue |
Kenneth Griffin Exits (1)
Company Name | Exit Date | Exit Type | Exit Size |
---|---|---|---|
GloriFi | 21-Nov-2022 |
Kenneth Griffin Investments by Industry, Year, and Region
Kenneth Griffin Co-Investors (76)
Name | With | Exits | Lead Partner | Series | Industry |
---|---|---|---|---|---|
Alumni Ventures | 2 |
![]() |
![]() |
||
General Catalyst |
![]() |
![]() |
|||
Hellman & Friedman |
![]() |
![]() |
|||
Morgan Stanley |
![]() |
![]() |
|||
NGP Energy Capital Management |
![]() |
![]() |
Kenneth Griffin FAQs
-
Who is Kenneth Griffin?
Kenneth Griffin is an angel Investor who has made 10 investments.
-
What kind of investor is Kenneth Griffin?
Kenneth Griffin is an angel investor.
-
What does Kenneth Griffin do?
As an angel investor, Kenneth Griffin invests personal money into promising companies, typically in exchange for equity.
-
What has Kenneth Griffin invested in?
Kenneth Griffin has made numerous investments in companies like Pacific Fusion, X Energy (USA), and DayOne (Systems and Information Management) within the Alternative Energy Equipment and Systems and Information Management industries.
-
What has Kenneth Griffin invested in recently?
Kenneth Griffin's latest investment was on 06-Mar-2025 in Pacific Fusion, a company within the Alternative Energy Equipment industry.
Data Transparency
-
Meet our data hygiene team
Discover how our experts ensure you’re getting the most accurate financial data in the industry.
Read blog » -
How PitchBook sources data
Our data operations team has logged over 3.5 million hours researching, organizing, and integrating the information you need most.
Discover our process »