William Blair Investment Management
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William Blair Investment Management’s UL Solutions ULS Stock Holding History

William Blair Investment Management’s Portfolio ULS Stock Details ULS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$20.1M Sell
234,392
-141,647
-38% -$11.2M 0.07% 255
2025
Q4 		$29.7M Sell
376,039
-26,171
-7% -$2.1M 0.08% 202
2025
Q3 		$28.5M Sell
402,210
-38,685
-9% -$2.64M 0.07% 224
2025
Q2 		$32.1M Buy
+440,895
New +$28.9M 0.09% 190

Other funds holding ULS

T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Kayne Anderson Rudnick Investment Management
Kayne Anderson Rudnick Investment Management Los Angeles, California $34B AUM 6.31% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
DCP
Durable Capital Partners Bethesda, Maryland $9.71B AUM 26.27% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Bessemer Group
Bessemer Group Woodbridge, New Jersey $63.6B AUM 28.76% 1-Year Est. Return

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

William Blair Investment Management reduced its UL Solutions (ULS) stake by 38% in Q1 2026, selling an estimated $11.2M and leaving 234,392 shares worth $20.1M. The position accounts for 0.07% of the portfolio, ranked #255.

William Blair Investment Management first reported a position in ULS in Q2 2025 and has held it in 4 quarters since. The position peaked at $32.1M in Q2 2025. 369 funds tracked by Wall St. Rank hold ULS as of Q1 2026.

  • William Blair Investment Management held 234,392 shares of UL Solutions worth $20.1M as of Q1 2026.
  • William Blair Investment Management sold 141,647 UL Solutions shares in Q1 2026, an estimated $11.2M.
  • UL Solutions made up 0.07% of William Blair Investment Management's portfolio in Q1 2026, its #255 holding.
  • William Blair Investment Management first reported a position in UL Solutions in Q2 2025 and has held it in 4 quarters since.
  • William Blair Investment Management's UL Solutions position peaked at $32.1M in Q2 2025.
  • 369 funds tracked by Wall St. Rank held UL Solutions as of Q1 2026.

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