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American Century Private Investments™

Invest in what the world needs

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Private investments offer qualified institutional investors the ability to invest in companies and instruments that aren’t available in the public markets. They can enhance a portfolio’s diversification and potential for returns.

American Century Private Investments’ team aims to put capital to work for the greater good, seeking out early-stage companies with the potential to grow while improving people’s well-being. We look for companies in the healthcare and climate sectors. Focus areas include delivering advancements in clean air, food, water, shelter, education, healthcare, sanitation, and climate and environmental sustainability.

When we identify companies aligned with our mission, we go beyond due diligence. We build relationships grounded in a shared vision, transparency, and mutual accountability.

Benefiting Humanity

How Venture Capital Helps Improve Our Well-Being

Venture capital can bridge the gap between their promising inspiration and real-world implementation. Its growing importance is vital to helping clear the complex healthcare and climate hurdles we face.

4 Investment Professionals¹ ¹As of 3/31/2025
20+ Years Average Industry Experience¹
2019 Discipline Inception

Philosophy

Climate + Healthcare = Well-being

Healthcare and Climate concerns are undeniably linked. Together they represent some of the world’s biggest problems, and we believe some of the biggest opportunities. Solving these intersecting problems can help positively influence human well-being and offers the potential for strong returns. That’s why we take an “and” approach, rather than an “either/or” one, searching for the hungriest, most innovative management teams in both sectors.


Improve Health

Help, cure and manage life-altering diseases & conditions through:

  • Medical devices
  • Diagnostics
  • Biopharmaceutical
  • Drug delivery
  • Life Science tools
Improve Environment

Reduce negative impact on the planet through innovation in:

  • Clean energy
  • Water
  • Green chemistry and materials
  • Agriculture and food
  • Waste reduction

Portfolio Companies

Aquea Health logo

Developing next-generation minimally invasive glaucoma surgery (MIGS)

Enabling better and more affordable biomarker discovery and research through a revolutionary optical, label-free technology

arch oncology logo

Developing anti-CD47 antibodies to block cancer growth more efficiently and change patient lives

Bonum logo

Generating a new class of therapeutics based on a proven technology platform, using principles of allosteric regulation to create highly active and less toxic medicines*

Claros Technologies logo

Enabling the development of more efficient, safe and sustainable textiles with zero toxic waste

ENZINC logo

Enabling zinc batteries at scale through revolutionary battery technology

Fervo Energy logo

Accelerating the clean energy transition with next-generation geothermal projects to deliver 24/7 carbon-free energy

Good logo

Addressing the problem of systemic toxicity with highly efficient, context-dependent, protein-based therapeutics

InterVene logo

Creating the first effective therapy for patients suffering from the painful and costly symptoms of Chronic Venous Insufficiency (CVI) due to Deep Vein Reflux (DVR)

Koya logo

Treating lymphedema through a medical device that offers compression and patient mobility

Rivermark logo


Offering a minimally invasive treatment for Benign Prostatic Hyperplasia (BPH) via a medical device

*Bonum Therapeutics began as a spin-out of Good Therapeutics and was not independently sourced. Bonum Therapeutics is now a standalone company.

People

Our Private Investments team has deep experience investing in early-stage companies with breakthrough ideas. All our partners have an average of 20+ years in the industry.

Our team worked together for several years before joining American Century in 2023. We've always believed this is a people business first, so we specialize in building and nurturing industry relationships. These relationships deepen our bench considerably, and help us identify those innovative companies worthy of investment consideration.

Meet the Team

Anthony Arnerich
Anthony Arnerich

Managing Partner

Nicholas Walrod
Nicholas Walrod

Managing Partner

Joseph Biller
Joe Biller, CFA

Managing Partner

Rachael Ager
Rachael Ager

Director of Operations

Phillipe Rodriguez
Phillipe Rodriguez

Senior Associate

The Firm

A Shared DNA

Exceptional cultural alignment which enables us to grow, focus and build.

Our dedicated Private Investments team (previously with 3x5 Partners) is backed by the size, scale, resources, and talent of American Century. The result of this combination? A unique motivation to deliver strong results for our investors and the world in which we all live.

Not only do we invest in companies we believe are positioned to solve the world’s greatest needs, but also, through American Century’s ownership structure, 40% of our profits also fund life-changing medical research. So the better we invest for you, the more we can do for everyone. View our story.

Contact Us

Call us to learn more about Private Investment opportunities.

Many of American Century's investment strategies incorporate sustainability factors, using environmental, social, and/or governance (ESG) data, into their investment processes in addition to traditional financial analysis. However, when doing so, the portfolio managers may not consider sustainability-related factors with respect to every investment decision and, even when such factors are considered, they may conclude that other attributes of an investment outweigh sustainability factors when making decisions for the portfolio. The incorporation of sustainability factors may limit the investment opportunities available to a portfolio, and the portfolio may or may not outperform those investment strategies that do not incorporate sustainability factors. ESG data used by the portfolio managers often lacks standardization, consistency, and transparency, and for certain companies such data may not be available, complete, or accurate.

No solicitation, offer, or distribution of any investment, security, financial instruments, or financial interest of any type is being made or is intended by any of this material. This material is provided for informational and educational purposes only.

Nothing herein constitutes a recommendation of any investment, security, financial instruments, financial interest of any type, or any investment strategy.

No representation or warranty is being made regarding the suitability of any investments, securities, financial instruments or strategies for any investor. The material on this site is provided “as is.” American Century does not warrant the accuracy of the materials provided herein, either expressly or impliedly, for any particular purpose and hereby expressly disclaims any warranties or merchantability or fitness for any particular purpose.

This material has been prepared for educational purposes only. It is not intended to provide, and should not be relied upon for, investment, accounting, legal or tax advice.