Bernstein Private Wealth Management Appoints Kim Mustin to Lead Fast-Growing Business Owner Segment

Bernstein Private Wealth Management (NYSE: AB) appointed Kim Mustin to lead its expanding Business Owner segment and retain leadership of 401(k) and Cash Balance offerings while serving as Co-Senior Managing Director, New York Region.

Rhea-AI Summary

Bernstein Private Wealth Management (NYSE: AB) appointed Kim Mustin to lead its expanding Business Owner segment and retain leadership of 401(k) and Cash Balance offerings while serving as Co-Senior Managing Director, New York Region. The move underscores focus on founders and integrated wealth planning.

Bernstein said 75% of its wealth advisors serve business owners, Q1 2026 new Business Owner business already represents >30% of full-year 2025, and Bernstein manages $156 billion AUM as of Dec 31, 2025.

Positive

• Q1 2026 new business represents >30% of full-year 2025
• 75% of wealth advisors serve business owners
• $156B AUM at Bernstein as of Dec 31, 2025
• Expanded leadership to integrate ownership-cycle and family office services

Negative

• None.

Argus Mar 31 session

+2.69% close to close Open Argus

Details

News Market Reaction – AB

On Mar 31, the day this news came out, AB closed 2.69% above the previous close.

Data tracked by StockTitan Argus for the Mar 31 session.

Key Figures

Wealth advisors serving owners: 75% Q1 2026 run rate: Over 30% Bernstein AUM: $156 billion +4 more

Wealth advisors serving owners

75%

Share of Bernstein Wealth Advisors serving business owners

Q1 2026 run rate

Over 30%

Business Owner segment new-business run rate vs full-year 2025 total

Bernstein AUM

$156 billion

Bernstein assets under management as of December 31, 2025

AllianceBernstein AUM

Over $867 billion

AllianceBernstein AUM as of December 31, 2025

Mustin experience

Over 35 years

Kim Mustin’s experience across financial services and civil service

Bernstein tenure with owners

Over 60 years

Time partnering with business owners across ownership cycle

Countries and jurisdictions

26

AllianceBernstein offices across countries and jurisdictions

Historical Context

5 past events · Latest: Mar 11

5 events

1. Mar 11

   AUM update

   24h Move

   -3.3%

   Reported AUM increased to $880B, driven mainly by market appreciation.

2. Feb 17

   Tech platform deal

   24h Move

   +1.4%

   Selected SimCorp One to unify investment workflows and scale operations.

3. Feb 11

   AUM update

   24h Move

   +0.6%

   Announced AUM rose to $875B with broad asset‑class growth.

4. Feb 05

   Earnings results

   24h Move

   -0.2%

   Reported record AUM and earnings with margin expansion and higher distributions.

5. Jan 12

   AUM update

   24h Move

   -1.4%

   Disclosed AUM increase to $867B despite slightly negative net flows.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

liquidity event, family office, assets under management

3 terms

liquidity event financial

"For many founders, a liquidity event is a once in a lifetime moment..."

A liquidity event is a transaction that converts ownership in a privately held or illiquid asset into cash or a marketable security, such as a sale, merger, public stock offering, or buyout. It matters to investors because it provides a clear way to realize returns or recover capital—think of it as turning a house into a cash sale—so the timing, price and structure of the event determine how much money stakeholders actually receive.

family office financial

"...deliver a modern family office experience that adds value..."

A family office is a private organization that manages the financial affairs, investments and often day-to-day wealth needs of one wealthy family or a small number of families, acting like a household’s dedicated finance team. It matters to investors because family offices can move large amounts of capital quietly and for the long term—choosing investments, buying firms or funding startups—which can influence market prices, deal availability and how businesses are run.

assets under management financial

"As of December 31, 2025, Bernstein manages $156 billion in assets under management."

Assets under management (AUM) is the total value of all the investments that a financial company or fund is responsible for overseeing on behalf of its clients. It’s like a big bucket that shows how much money the firm is managing for people or organizations. A higher AUM often indicates a larger, more trusted company, and it can influence how much money they earn and the services they can offer.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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― Expanded Leadership Role Highlights Firm's Strategic Commitment to Entrepreneurial Clients ―

― 75% of Bernstein's Wealth Advisors Serve Business Owners ―

― New Business Growth Accelerates, with Q1 2026 Run Rate Over 30% of Full-Year 2025 ―

NEW YORK, March 31, 2026 /PRNewswire/ -- Bernstein Private Wealth Management (Bernstein), a unit of AllianceBernstein L.P. (NYSE: AB), today announced the appointment of Kim Mustin to an expanded national leadership role overseeing the firm's fast-growing Business Owner segment. This strategic initiative reflects Bernstein's commitment to helping private business owners navigate the complexities of selling and monetizing their companies. Alongside these new responsibilities, Mustin will continue to oversee Bernstein's 401(k) and Cash Balance offerings and serve as Co-Senior Managing Director of the New York Region, reporting to Rick Meyers, Head of Client Service and Advisory.

"I am thrilled to congratulate Kim on this well-deserved expansion of her role," said Meyers. "Her proven track record of building successful teams and delivering results for entrepreneurs and private equity clients makes her the ideal leader to grow and scale this platform. Bernstein's approach to serving business owners is truly distinctive and with Kim at the helm, we are confident we will continue to remain a trusted, long-term partner to one of our fastest-growing client segments nationwide."

In her enhanced role, Mustin will spearhead Bernstein's strategy to integrate insights across the firm's business owner ecosystem, delivering a holistic approach to both business and personal wealth planning needs for founders. This leadership expansion underscores Bernstein's commitment to its Business Owner segment, where 75% of its Wealth Advisors serve business owners. The firm also offers retirement services to mid-sized business owners and private equity firms. By integrating these capabilities, Bernstein is positioned to provide founders with a seamless, holistic wealth planning experience. Notably, in the first quarter of 2026, Bernstein secured new business from the Business Owner segment that already represents nearly one-third of the total for full-year 2025, signaling the significant growth and demand in this area.

Mustin added, "For many founders, a liquidity event is a once in a lifetime moment that can profoundly affect them and their families. Yet most face this process without prior experience, needing to make critical decisions about valuation, timing, tax strategy, and what comes next. Our role is to help clients prepare for this pivotal moment while supporting their families and the future of their businesses. I'm excited to expand my role and deliver a modern family office experience that adds value throughout the entire ownership journey."

With over 35 years of experience spanning financial services industry and civil service, Mustin joined Bernstein in 2017 to co-lead its New York City office. Prior to Bernstein, she held senior roles at industry leading Wall Street firms after spending nearly a decade at the U.S. Treasury Department.

For over 60 years, Bernstein has partnered with business owners at every stage of their journey, from building and scaling enterprises to planning transitions and preserving multigenerational wealth. The firm combines deep expertise in ownership-cycle planning with an integrated family office model that includes investment management, tax and estate planning, philanthropic advisory, and succession planning all designed to prepare families for the next generation of stewardship. Bernstein also provides access to a curated founder network through exclusive Business Owner Summits and Forums, where entrepreneurs and wealth creators connect, share ideas, and navigate the evolving private markets landscape.

As of December 31, 2025, Bernstein manages $156 billion in assets under management. 

Bernstein Private Wealth Management advises ultrahigh- and high-net-worth clients on planning and living with the complexities that come with significant wealth. Bernstein is distinguished among major wealth managers by its expertise in navigating life transitions through a holistic approach. A flexible process—paired with innovative research, sophisticated modeling, and cutting-edge investment solutions—also set Bernstein apart. Headquartered in Nashville, TN, Bernstein is a business unit of AllianceBernstein, which ranks among the largest investment managers in the world, with offices in major world markets across 26 countries and jurisdictions and over $867 billion in assets under management as of December 31, 2025. For additional information, visit Bernstein.com.

CONTACT: Katrina Clay, katrina.clay@bernstein.com 

 

View original content:https://www.prnewswire.com/news-releases/bernstein-private-wealth-management-appoints-kim-mustin-to-lead-fast-growing-business-owner-segment-302730239.html

SOURCE Bernstein Private Wealth Management

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What role was Kim Mustin appointed to at Bernstein (NYSE: AB) on March 31, 2026?

Kim Mustin was named to an expanded national leadership role overseeing the Business Owner segment while keeping 401(k) and Cash Balance oversight. According to the company, she also continues as Co-Senior Managing Director of the New York Region, reporting to Rick Meyers.

How significant is Bernstein's Business Owner segment growth reported by AB in Q1 2026?

Q1 2026 new business from business owners already exceeds 30% of full-year 2025 totals. According to the company, this signals accelerated demand and a fast-growing pipeline for founder-focused services.

What percentage of Bernstein wealth advisors serve business owners according to the March 31, 2026 announcement?

Seventy-five percent of Bernstein wealth advisors serve business owners. According to the company, this concentration supports a dedicated platform for ownership-cycle planning and integrated family office services.

How much assets under management did Bernstein report as of Dec 31, 2025 (AB)?

Bernstein reported managing $156 billion in AUM as of Dec 31, 2025. According to the company, this reflects its private wealth management scale within AllianceBernstein's broader asset base.

What services will Kim Mustin integrate for founders at Bernstein (NYSE: AB)?

Mustin will integrate ownership-cycle planning with investment, tax, estate, philanthropic, and succession advice. According to the company, the aim is a seamless, holistic wealth-planning and modern family office experience for founders.