William Blair Investment Management
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William Blair Investment Management’s Sterling Infrastructure STRL Stock Holding History

William Blair Investment Management’s Portfolio STRL Stock Details STRL Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$132M Buy
323,421
+282,167
+684% +$110M 0.44% 62
2025
Q4 		$12.6M Sell
41,254
-36,836
-47% -$12.7M 0.04% 302
2025
Q3 		$26.5M Buy
+78,090
New +$22.2M 0.07% 245

Other funds holding STRL

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

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

William Blair Investment Management increased its Sterling Infrastructure (STRL) stake by 684% in Q1 2026, buying an estimated $110M and bringing the position to 323,421 shares worth $132M. The position accounts for 0.44% of the portfolio, ranked #62.

William Blair Investment Management first reported a position in STRL in Q3 2025 and has held it in 3 quarters since. 703 funds tracked by Wall St. Rank hold STRL as of Q1 2026.

  • William Blair Investment Management held 323,421 shares of Sterling Infrastructure worth $132M as of Q1 2026.
  • William Blair Investment Management bought 282,167 Sterling Infrastructure shares in Q1 2026, an estimated $110M.
  • Sterling Infrastructure made up 0.44% of William Blair Investment Management's portfolio in Q1 2026, its #62 holding.
  • William Blair Investment Management first reported a position in Sterling Infrastructure in Q3 2025 and has held it in 3 quarters since.
  • 703 funds tracked by Wall St. Rank held Sterling Infrastructure as of Q1 2026.

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