WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC Q4 2025 Filing

Filed February 9, 2026

Portfolio Value

$45.6B

Holdings

413

Report Date

Q4 2025

Filing Type

13F-HR

All Holdings (413 positions)

StockValue
MLB1MERCADOLIBRE INC
$333K
IDXXIDEXX LABS INC
$298K
INTUINTUIT
$293K
COSTCOSTCO WHSL CORP NEW
$283K
MDGLMADRIGAL PHARMACEUTICALS INC
$206K
ARGXARGENX SE
$188K
MLMMARTIN MARIETTA MATLS INC
$168K
CWCURTISS WRIGHT CORP
$153K
SPOTSPOTIFY TECHNOLOGY S A
$128K
CA8ACACI INTL INC
$40K
LLYELI LILLY & CO
$34K
ISRGINTUITIVE SURGICAL INC
$8K
ASMLASML HOLDING N V
$3K
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