William Blair & Company’s Aecom ACM Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
Sell
-5,153
Closed -$491K 1924
2025
Q4
$491K Sell
5,153
-8,182
-61% -$962K ﹤0.01% 1155
2025
Q3
$1.74M Buy
13,335
+9,379
+237% +$1.13M ﹤0.01% 765
2025
Q2
$446K Buy
+3,956
New +$411K ﹤0.01% 1124

Other funds holding ACM

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

William Blair & Company sold out of Aecom (ACM) in Q1 2026, closing a stake of 5,153 shares — an estimated $491K sold.

William Blair & Company first reported a position in ACM in Q2 2025 and held it in 3 quarters. The position peaked at $1.74M in Q3 2025. 619 funds tracked by Wall St. Rank hold ACM as of Q1 2026.

  • William Blair & Company reported no remaining Aecom position as of Q1 2026 after selling out during the quarter.
  • William Blair & Company sold 5,153 Aecom shares in Q1 2026, an estimated $491K.
  • William Blair & Company first reported a position in Aecom in Q2 2025 and held it in 3 quarters.
  • William Blair & Company's Aecom position peaked at $1.74M in Q3 2025.
  • 619 funds tracked by Wall St. Rank held Aecom as of Q1 2026.

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