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PDT Partners’s Aecom ACM Stock Holding History

PDT Partners’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 		$12.1M Buy
+172,729
New +$13.2M 0.63% 38
2025
Q4 		– Sell
-6,891
Closed -$899K – 549
2025
Q3 		$899K Buy
+6,891
New +$832K 0.06% 372
2022
Q4 		– Sell
-5,979
Closed -$409K – 609
2022
Q3 		$409K Sell
5,979
-5,135
-46% -$364K 0.06% 491
2022
Q2 		$725K Buy
+11,114
New +$777K 0.06% 498
2019
Q2 		– Sell
-99,800
Closed -$2.96M – 410
2019
Q1 		$2.96M Sell
99,800
-34,743
-26% -$1.04M 0.17% 156
2018
Q4 		$3.56M Buy
+134,543
New +$4.09M 0.2% 147
2013
Q3 		– Sell
-37,702
Closed -$1.2M – 1469
2013
Q2 		$1.2M Buy
+37,702
New +$1.14M 0.03% 744

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

PDT Partners's ACM Position: Q2 2026 in Review

PDT Partners opened a new position in Aecom (ACM) in Q2 2026: 172,729 shares worth $12.1M. The stake represents 0.63% of the portfolio and ranks #38 among its holdings. This is a return to the name: PDT Partners previously reported a position in ACM as recently as Q3 2025.

PDT Partners first reported a position in ACM in Q2 2013 and has held it in 7 quarters since. 574 funds tracked by Wall St. Rank hold ACM as of Q2 2026.

  • PDT Partners held 172,729 shares of Aecom worth $12.1M as of Q2 2026.
  • Aecom was a new PDT Partners position in Q2 2026.
  • Aecom made up 0.63% of PDT Partners's portfolio in Q2 2026, its #38 holding.
  • PDT Partners first reported a position in Aecom in Q2 2013 and has held it in 7 quarters since.
  • 574 funds tracked by Wall St. Rank held Aecom as of Q2 2026.

Based on PDT Partners's 13F filing for Q2 2026, filed 14 Aug 2026.