Mariner Pairs with State Street to Scale Operations and Support Growth to 5,000 Advisors via Charles River's Wealth Platform
MWN-AI** Summary
State Street Corporation (NYSE: STT) has partnered with Mariner, a national financial services firm, to implement the Charles River Wealth Management Solution. This collaboration aims to streamline Mariner’s operations and bolster its ambitious growth strategy, which includes expanding its advisor base from over 2,080 to 5,000. The integration of Charles River's platform is designed to create a centralized technology foundation that enhances efficiency while avoiding operational complexity, ultimately improving both the advisor and client experience.
John Plansky, global head of State Street Wealth Services, expressed enthusiasm about supporting Mariner as it navigates its growth journey with a modern and scalable platform. By leveraging this centralized wealth technology, Mariner intends to enhance various functions, including portfolio management, advisor workflows, and trading, which should allow advisors to focus more on cultivating client relationships.
Mariner’s CEO, Marty Bicknell, highlighted that this strategic partnership will facilitate the firm’s anticipated growth while delivering a unified experience across its operations. Meanwhile, Charles River has a proven track record, having provided integrated wealth technology services for over 15 years, catering to global wealth managers looking to streamline operations and manage complexity.
Swati Verma, head of Charles River’s Wealth and Advisor platforms, emphasized that the centralized platform is tailored to meet the needs of advisors, helping them manage portfolios and execute trades efficiently. This solution aims to minimize operational friction while providing firms with the flexibility to scale seamlessly.
In conclusion, the collaboration between State Street and Mariner represents a significant step towards modernizing wealth management operations, with Charles River’s technology poised to play a crucial role in Mariner’s growth trajectory.
MWN-AI** Analysis
Mariner's partnership with State Street to implement Charles River's Wealth Management Solution marks a significant step toward scaling its operations, with ambitions to expand advisor numbers from over 2,080 to 5,000. As a financial analyst, I see several implications of this move that should inform investors and industry stakeholders.
By adopting Charles River’s centralized platform, Mariner aims to enhance operational efficiency while minimizing complexity. This advancement will allow advisors to focus more time on cultivating client relationships rather than managing administrative tasks. With an increasing regulatory environment and a growing investor base, this streamlined approach could give Mariner a competitive edge in the marketplace, especially as it looks to grow its total assets under advisement, currently at an impressive $632 billion.
Investors should consider the robustness of the technology infrastructure as a critical success factor. Charles River has a proven track record with significant global clients, managing USD $59 trillion in assets. Mariner’s decision to leverage this technology indicates a strategic commitment to address scalability while maintaining high service levels.
Moreover, the emphasis on integrated workflows—portfolio management, trading efficiency, and custodial data integration—signals Mariner's dedication to innovation. This could attract more advisors seeking a modern wealth management platform, thus facilitating their growth ambitions.
In summary, Mariner’s collaboration with State Street creates a promising foundation for sustainable growth. Investors and industry analysts should closely monitor performance metrics relating to advisor productivity, client retention, and overall asset growth post-implementation. A successful deployment of the Charles River platform could lead to increased market share and enhanced valuation for Mariner, making it a firm to watch in the wealth management sector.
**MWN-AI Summary and Analysis is based on asking OpenAI to summarize and analyze this news release.
State Street Corporation (NYSE: STT) today announced that Mariner, a privately held national financial services firm, will implement Charles River’s Wealth Management Solution to streamline its operations and support its long-term growth strategy, including its goal of expanding to 5,000 advisors.
The goal of the implementation is to help Mariner operate more efficiently across its current 2,080+ advisors while establishing a scalable, centralized technology foundation designed to support continued growth without adding operational complexity or disrupting the advisor or client experience.
“Mariner is a fast-growing firm in wealth management, and we’re thrilled to support them with a modern, centralized platform that strengthens the advisor experience,” said John Plansky, global head of State Street Wealth Services. “Charles River’s platform is built for firms operating at scale, helping them serve thousands of advisors through a single, flexible foundation designed to support disciplined and consistent growth.”
Mariner plans to leverage Charles River’s centralized wealth technology to enhance portfolio management, advisor workflows, trading, custodial data integration, and enterprise data management. The solution is designed to improve operational efficiency, enhance consistency across the firm, and enable advisors to spend more time focused on client relationships.
“This partnership reflects how we think about our company’s next chapter,” said Marty Bicknell, CEO and president of Mariner. “It’s designed to support our journey to 5,000 advisors and beyond, while enabling a more unified and modern experience across the firm as it continues to grow.”
For more than 15 years, Charles River has delivered integrated wealth technology services to global enterprise wealth managers that are designed to streamline operations, manage complexity, and support innovation across investment and advisory workflows.
“Charles River’s centralized platform offers advisors tools they need to manage portfolios, trade efficiently, and work seamlessly across custodians and investment programs, including UMA, SMA, Rep-as-PM, and fund wraps,” said Swati Verma, head of Charles River’s Wealth and Advisor platforms. “It’s designed to reduce operational friction while giving firms the flexibility to grow on a single, integrated platform.”
About State Street Corporation
State Street Corporation (NYSE: STT) is one of the world's leading providers of financial services to institutional investors including investment servicing, investment management and investment research and trading. With $53.8 trillion in assets under custody and/or administration and $5.7 trillion* in assets under management as of December 31, 2025, State Street operates globally in more than 100 geographic markets and employs approximately 52,000 worldwide.
*Assets under management as of December 31, 2025 includes approximately $173 billion of assets with respect to SPDR ® products for which State Street Global Advisors Funds Distributors, LLC (SSGA FD) acts solely as the marketing agent. SSGA FD and State Street Investment Management are affiliated.
About Charles River Development, A State Street Company
Investment and wealth managers, asset owners and insurers in ~30 countries rely on Charles River IMS to manage USD $59 Trillion in assets. Together with State Street’s middle and back office services, Charles River’s cloud-based front office technology forms the foundation of State Street Alpha ® .
Charles River IMS helps automate and simplify the investment process across asset classes, from portfolio management and risk analytics through trading and post-trade settlement, with integrated compliance and managed data throughout. Charles River for Private Markets helps solve complex data challenges for investors in private credit, real estate, private equity, and infrastructure. Charles River’s partner ecosystem enables clients to access the data, analytics, application and liquidity providers that support their product and asset class mix. With more than 185% increase in headcount over the last 8 years, Charles River serves clients globally offering 24/7 support. To learn more visit www.crd.com .
*Statistics as of Q4 2025. Assets are inclusive of clients using the platform for purposes of secondary compliance.
About Mariner
Mariner is a privately held national financial services firm equipped with the experience to meet your modern wealth needs. Our advisors have access to in-house expertise covering everything from tax, estate, trust, and insurance to investment banking and valuation, enabling them to maximize time spent creating unified wealth plans with clients. By opening more windows of wealth, we can create opportunities to positively impact the lives of many. With this purpose, we intend to raise the bar for the entire industry. Founded in 2006 with approximately $300 million in assets under advisement, Mariner affiliates collectively advise on more than $632 billion in assets under advisement as of 12/31/25. Learn more at www.mariner.com .
© 2026 State Street Corporation
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View source version on businesswire.com: https://www.businesswire.com/news/home/20260212573320/en/
Media Contact:
Brendan Paul
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FAQ**
How will the partnership between State Street Corporation STT and Mariner enhance operational efficiency as Mariner aims to expand to 5,000 advisors?
Can State Street Corporation STT provide insights on how Charles River's Wealth Management Solution differentiates their services in a competitive market?
What specific measures is State Street Corporation STT implementing to ensure a seamless client experience during Mariner's technology transition?
In what ways does State Street Corporation STT expect the centralized platform to impact advisor workflows and client relationships at Mariner?
**MWN-AI FAQ is based on asking OpenAI questions about State Street Corporation (NYSE: STT).
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