Impax Asset Management Group
ACM icon

Impax Asset Management Group’s Aecom ACM Stock Holding History

Impax Asset Management Group’s Portfolio ACM Stock Details ACM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$149M Buy
2,128,339
+745,672
+54% +$57.1M 0.97% 32
2026
Q1 		$117M Sell
1,382,667
-9,425
-0.7% -$893K 0.82% 36
2025
Q4 		$133M Sell
1,392,092
-9,981
-0.7% -$1.17M 0.83% 37
2025
Q3 		$183M Sell
1,402,073
-114,750
-8% -$13.9M 1.07% 29
2025
Q2 		$171M Buy
1,516,823
+13,453
+0.9% +$1.4M 0.98% 34
2025
Q1 		$139M Sell
1,503,370
-33,806
-2% -$3.43M 0.84% 42
2024
Q4 		$164M Sell
1,537,176
-191,198
-11% -$20.9M 0.74% 48
2024
Q3 		$178M Sell
1,728,374
-24,113
-1% -$2.26M 0.7% 51
2024
Q2 		$154M Buy
1,752,487
+235,350
+16% +$21.5M 0.63% 56
2024
Q1 		$149M Hold
1,517,137
– – 0.57% 59
2023
Q4 		$140M Sell
1,517,137
-111,397
-7% -$9.45M 0.56% 63
2023
Q3 		$135M Buy
1,628,534
+105,454
+7% +$9.09M 0.6% 56
2023
Q2 		$129M Buy
+1,523,080
New +$125M 0.52% 65

Other funds holding ACM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Impax Asset Management Group's ACM Position: Q2 2026 in Review

Impax Asset Management Group increased its Aecom (ACM) stake by 54% in Q2 2026, buying an estimated $57.1M and bringing the position to 2,128,339 shares worth $149M. The position accounts for 0.97% of the portfolio, ranked #32.

Impax Asset Management Group first reported a position in ACM in Q2 2023 and has held it in 13 quarters since. The position peaked at $183M in Q3 2025. 568 funds tracked by Wall St. Rank hold ACM as of Q2 2026.

  • Impax Asset Management Group held 2,128,339 shares of Aecom worth $149M as of Q2 2026.
  • Impax Asset Management Group bought 745,672 Aecom shares in Q2 2026, an estimated $57.1M.
  • Aecom made up 0.97% of Impax Asset Management Group's portfolio in Q2 2026, its #32 holding.
  • Impax Asset Management Group first reported a position in Aecom in Q2 2023 and has held it in 13 quarters since.
  • Impax Asset Management Group's Aecom position peaked at $183M in Q3 2025.
  • 568 funds tracked by Wall St. Rank held Aecom as of Q2 2026.

Based on Impax Asset Management Group's 13F filing for Q2 2026, filed 11 Aug 2026.