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American Century Private Investments™

Invest in what the world needs

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Our Private Investments team seeks to make venture capital investments in solutions focused solving real world problems and improving human and environmental health. We work closely alongside founders and CEOs, supporting companies who have identified pressing needs in our world and developed ideas disruptive to legacy technologies. With over 100 years of collective venture experience, our team seeks to capitalize on unique deal flow through relationships cultivated over decades investing in these sectors.

4 Investment Professionals¹ ¹As of 9/30/2025
20+ Years Average Industry Experience¹
2019 Discipline Inception

Benefiting Humanity

How Venture Capital Helps Improve Our Well-Being

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

Approach

Environment + Healthcare = Well-being

When choosing companies to invest in, our team looks for breakthrough innovations in healthcare or the environment—two intertwined areas that affect human well-being. Collectively, they represent large markets and have amassed significant venture funding.


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

Breakthrough capture, concentration, destruction, and ongoing monitoring of PFAS water pollution

ENZINC logo

Enabling zinc batteries at scale through revolutionary battery technology

Fervo Energy logo

Developer, owner, and operator of next-generation geothermal energy technologies

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

Brian Moonan
Brian Moonan

Vice President of Sales

Rachael Ager
Rachael Ager

Director of Operations

Phillipe Rodriguez
Phillipe Rodriguez

Investment Lead

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.

The portfolio managers use a variety of analytical research tools and techniques to help them make decisions about buying or holding issuers that meet their investment criteria and selling issuers that do not. In addition to fundamental financial metrics, the portfolio managers may also consider environmental, social, and/or governance (ESG) data to evaluate an issuer's sustainability characteristics. However, the portfolio managers may not consider ESG data with respect to every investment decision and, even when such data is considered, they may conclude that other attributes of an investment outweigh sustainability-related considerations when making decisions. Sustainability-related characteristics may or may not impact the performance of an issuer or the strategy, and the strategy may perform differently if it did not consider ESG data. Issuers with strong sustainability-related characteristics may or may not outperform issuers with weak sustainability-related characteristics. ESG data used by the portfolio managers often lacks standardization, consistency, and transparency, and may not be available, complete, or accurate. Not all American Century investment strategies incorporate ESG data into the process.

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.