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WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC - Portfolio Stock Holdings

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC disclosed 458 stock positions in a recent SEC 13F filing. $35,851,924,779 of stock holdings were filed, with the largest holdings including NVDA, TSM, and MSFT. This filing represented positions held on Dec. 31, 2025, and was filed on Feb. 9, 2026.

We estimate the fund has a total AUM of $65,596,131,787 and has 388 employees, per a recent ADV filing. Most of the fund’s AUM appears to come from pooled investment vehicles.

Report Period:

Dec. 31, 2025

No. of Stocks:

458

Est. Stock Holding Value:

$35,851,924,779

Top Stock Holdings By Sector

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Portfolio Stock Holdings - WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

Stock
Holdings (Shares)
Holdings (USD)
% of Portfolio
Change (Shares)
Change (USD)
% Change

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