William Blair Investment Management
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William Blair Investment Management’s ICU Medical ICUI Stock Holding History

William Blair Investment Management’s Portfolio ICUI Stock Details ICUI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$28.1M Buy
217,903
+7,137
+3% +$1.03M 0.09% 198
2025
Q4 		$30.1M Sell
210,766
-21,402
-9% -$2.87M 0.08% 197
2025
Q3 		$27.9M Buy
232,168
+20,829
+10% +$2.64M 0.07% 233
2025
Q2 		$27.9M Buy
+211,339
New +$28.7M 0.07% 233

Other funds holding ICUI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Schroder Investment Management Group
Schroder Investment Management Group London, United Kingdom $122B AUM 29.27% 1-Year Est. Return
RRAM
River Road Asset Management Louisville, Kentucky $8.99B AUM 12.83% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

William Blair Investment Management's ICUI Position: Q1 2026 in Review

William Blair Investment Management increased its ICU Medical (ICUI) stake by 3.4% in Q1 2026, buying an estimated $1.03M and bringing the position to 217,903 shares worth $28.1M. The position accounts for 0.09% of the portfolio, ranked #198.

William Blair Investment Management first reported a position in ICUI in Q2 2025 and has held it in 4 quarters since. The position peaked at $30.1M in Q4 2025. 275 funds tracked by Wall St. Rank hold ICUI as of Q1 2026.

  • William Blair Investment Management held 217,903 shares of ICU Medical worth $28.1M as of Q1 2026.
  • William Blair Investment Management bought 7,137 ICU Medical shares in Q1 2026, an estimated $1.03M.
  • ICU Medical made up 0.09% of William Blair Investment Management's portfolio in Q1 2026, its #198 holding.
  • William Blair Investment Management first reported a position in ICU Medical in Q2 2025 and has held it in 4 quarters since.
  • William Blair Investment Management's ICU Medical position peaked at $30.1M in Q4 2025.
  • 275 funds tracked by Wall St. Rank held ICU Medical as of Q1 2026.

Based on William Blair Investment Management's 13F filing for Q1 2026, filed 8 May 2026.