$30B SEIA taps AssetMark alum Matt Matrisian to lead as president

$30B SEIA taps AssetMark alum Matt Matrisian to lead as president
Pictured from left: Brian Holmes, CEO and Matt Matrisian, president at Signature Estate & Investment Advisors.
The independent RIA's new hire, with a decade of M&A experience from his former firm and Raymond James, comes as SEIA logs record growth in 2024.
APR 25, 2025

Signature Estate & Investment Advisors has named Matt Matrisian as president, part of an ongoing effort to expand the firm’s national footprint following a year of record growth.

The Los Angeles-based RIA, which surpassed $30 billion in assets under advisement in 2024, reported a more than 30 percent increase in AUA over the past year.

In his new role, Matrisian will co-lead the firm's national expansion strategy alongside chief executive officer Brian Holmes, with a focus on acquisitions, organic growth initiatives and advisor support.

“Leveraging my experiences across M&A, technology, and advisor engagement to accelerate SEIA's national expansion is incredibly exciting,” Matrisian, who's stepping into the president role at SEI on Monday, said in a statement. “I look forward to building on the firm's momentum and creating scalable growth opportunities that will benefit both advisors and their clients.”

Matrisian joins SEIA with more than 15 years of experience in mergers and acquisitions and strategic growth, including leadership roles at AssetMark and Raymond James Financial.

During his tenure at AssetMark – where he progressed through a variety of key leadership roles including senior vice president and chief channel officer and, most recently, head of client growth – he helped grow the platform to over $140 billion in assets under management, overseeing initiatives across enterprise sales, business consulting and post-acquisition organizational design.

One of Matrisian’s priorities at SEIA will be strengthening the infrastructure and resources available to its advisors, with an emphasis on enhancing services around estate, tax and financial planning.

He is also expected to help drive consistent client experiences across the firm’s expanding network of offices.

“Matt's proven track record in M&A, channel expansion, scaling wealth management platforms and advisor technologies makes him the ideal leader to help us expand our national footprint,” said Holmes.

As part of its broader leadership realignment, SEIA also named Eric Rosen as chief growth and strategy officer and Howard Chen as chief operating officer.

The firm has bolstered its advisor and home office ranks by 58 hires over the past year, while adding locations in Arizona, South Florida, Utah, San Francisco and Tennessee.

That includes its acquisition of $2 billion RIA Cedar Brook in Cleveland, announced in April last year, and a Hollywood advisor who came home to SEIA in a full-circle moment in December after it acquired her firm.

Additional offices in North Carolina and Texas are expected to open soon.

Latest News

The 2025 InvestmentNews Awards Excellence Awardees revealed
The 2025 InvestmentNews Awards Excellence Awardees revealed

From outstanding individuals to innovative organizations, find out who made the final shortlist for top honors at the IN awards, now in its second year.

Top RIA Cresset warns of 'inevitable' recession amid tariff uncertainty
Top RIA Cresset warns of 'inevitable' recession amid tariff uncertainty

Cresset's Susie Cranston is expecting an economic recession, but says her $65 billion RIA sees "great opportunity" to keep investing in a down market.

Edward Jones joins the crowd to sell more alternative investments
Edward Jones joins the crowd to sell more alternative investments

“There’s a big pull to alternative investments right now because of volatility of the stock market,” Kevin Gannon, CEO of Robert A. Stanger & Co., said.

Record RIA M&A activity marks strong start to 2025
Record RIA M&A activity marks strong start to 2025

Sellers shift focus: It's not about succession anymore.

IB+ Data Hub offers strategic edge for U.S. wealth advisors and RIAs advising business clients
IB+ Data Hub offers strategic edge for U.S. wealth advisors and RIAs advising business clients

Platform being adopted by independent-minded advisors who see insurance as a core pillar of their business.

SPONSORED Compliance in real time: Technology's expanding role in RIA oversight

RIAs face rising regulatory pressure in 2025. Forward-looking firms are responding with embedded technology, not more paperwork.

SPONSORED Advisory firms confront crossroads amid historic wealth transfer

As inheritances are set to reshape client portfolios and next-gen heirs demand digital-first experiences, firms are retooling their wealth tech stacks and succession models in real time.