William Blair & Company’s UL Solutions ULS Stock Holding History

William Blair & Company’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	$62.2M	Sell	725,672 -115,896	-14%	-$9.14M	0.18%	122
2025 Q4	$66.4M	Sell	841,568 -40,733	-5%	-$3.27M	0.18%	124
2025 Q3	$62.5M	Buy	882,301 +133,730	+18%	+$9.11M	0.17%	128
2025 Q2	$54.5M	Buy	748,571 +14,690	+2%	+$962K	0.15%	133
2025 Q1	$41.4M	Sell	733,881 -40,178	-5%	-$2.13M	0.12%	155
2024 Q4	$38.6M	Buy	774,059 +50,875	+7%	+$2.64M	0.11%	161
2024 Q3	$35.7M	Buy	723,184 +422,818	+141%	+$20.6M	0.1%	157
2024 Q2	$12.7M	Buy	+300,366	New	+$11.4M	0.04%	292

Other funds holding ULS

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Kayne Anderson Rudnick Investment Management Los Angeles, California $34B AUM 6.31% 1-Year Est. Return

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 London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

Bessemer Group Woodbridge, New Jersey $63.6B AUM 28.76% 1-Year Est. Return

William Blair & Company's ULS Position: Q1 2026 in Review

William Blair & Company reduced its UL Solutions (ULS) stake by 14% in Q1 2026, selling an estimated $9.14M and leaving 725,672 shares worth $62.2M. The position accounts for 0.18% of the portfolio, ranked #122.

William Blair & Company first reported a position in ULS in Q2 2024 and has held it in 8 quarters since. The position peaked at $66.4M in Q4 2025. 369 funds tracked by Wall St. Rank hold ULS as of Q1 2026.

William Blair & Company held 725,672 shares of UL Solutions worth $62.2M as of Q1 2026.
William Blair & Company sold 115,896 UL Solutions shares in Q1 2026, an estimated $9.14M.
UL Solutions made up 0.18% of William Blair & Company's portfolio in Q1 2026, its #122 holding.
William Blair & Company first reported a position in UL Solutions in Q2 2024 and has held it in 8 quarters since.
William Blair & Company's UL Solutions position peaked at $66.4M in Q4 2025.
369 funds tracked by Wall St. Rank held UL Solutions as of Q1 2026.

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