Bank of Montreal Increases Stake in Western Alliance Bancorporation

Bank of Montreal Can now owns over 1 million shares of the financial services provider

Mar. 12, 2026 at 7:20am

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Bank of Montreal Can increased its stake in Western Alliance Bancorporation (NYSE:WAL) by 35.8% in the 3rd quarter, according to its most recent Form 13F filing with the Securities & Exchange Commission. The firm now owns 1,179,518 shares of the financial services provider's stock, worth over $102 million.

Why it matters

This move by Bank of Montreal Can signals their confidence in Western Alliance Bancorporation's growth potential. As one of the largest regional banks in the western United States, Western Alliance has been focused on relationship-driven banking solutions tailored to niche industries and growing businesses.

The details

Bank of Montreal Can purchased an additional 310,826 shares of Western Alliance Bancorporation during the 3rd quarter, increasing their total stake to 1,179,518 shares. This represents about 1.07% ownership of the company. Other major institutional investors have also been increasing their positions in Western Alliance, including Dimensional Fund Advisors, Congress Asset Management, and William Blair Investment Management.

  • Bank of Montreal Can increased its stake in the 3rd quarter of 2026.

The players

Bank of Montreal Can

A Canadian multinational banking and financial services corporation.

Western Alliance Bancorporation

A bank holding company headquartered in Phoenix, Arizona that provides a range of banking services to commercial clients, entrepreneurs and real estate developers.

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The takeaway

This investment by Bank of Montreal Can highlights the strong growth potential that major institutional investors see in Western Alliance Bancorporation. As one of the largest regional banks in the western U.S., Western Alliance's focus on relationship-driven banking solutions for niche industries and growing businesses appears to be resonating with investors.