Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$60.6M Buy
714,657
+199,914
+39% +$18.9M 0.01% 1180
2025
Q4
$49.1M Buy
514,743
+430,049
+508% +$50.6M 0.01% 1433
2025
Q3
$11.1M Sell
84,694
-56,911
-40% -$6.87M ﹤0.01% 3133
2025
Q2
$16M Buy
141,605
+40,995
+41% +$4.26M ﹤0.01% 2418
2025
Q1
$9.33M Sell
100,610
-25,161
-20% -$2.55M ﹤0.01% 2950
2024
Q4
$13.4M Buy
125,771
+114,553
+1,021% +$12.5M ﹤0.01% 2606
2024
Q3
$1.16M Sell
11,218
-9,275
-45% -$871K ﹤0.01% 6579
2024
Q2
$1.81M Sell
20,493
-6,120
-23% -$558K ﹤0.01% 5516
2024
Q1
$2.61M Sell
26,613
-255,101
-91% -$23.1M ﹤0.01% 5020
2023
Q4
$26M Buy
+281,714
New +$23.9M 0.01% 1761
2023
Q3
Sell
-22,287
Closed -$1.92M 14208
2023
Q2
$1.89M Buy
22,287
+18,659
+514% +$1.53M ﹤0.01% 5245
2023
Q1
$306K Sell
3,628
-214,068
-98% -$18.5M ﹤0.01% 9346
2022
Q4
$18.5M Buy
217,696
+213,394
+4,960% +$16.8M ﹤0.01% 2040
2022
Q3
$294K Sell
4,302
-60,031
-93% -$4.26M ﹤0.01% 9623
2022
Q2
$4.2M Sell
64,333
-388,074
-86% -$27.1M ﹤0.01% 4134
2022
Q1
$34.7M Sell
452,407
-138,204
-23% -$10.1M 0.01% 1405
2021
Q4
$45.7M Buy
590,611
+68,582
+13% +$4.82M 0.01% 1239
2021
Q3
$33M Sell
522,029
-850,470
-62% -$54.1M 0.01% 1488
2021
Q2
$86.9M Buy
1,372,499
+29,948
+2% +$1.96M 0.02% 751
2021
Q1
$86.1M Buy
1,342,551
+89,757
+7% +$5.11M 0.02% 663
2020
Q4
$62.4M Buy
1,252,794
+837,506
+202% +$40M 0.02% 804
2020
Q3
$17.4M Sell
415,288
-382,690
-48% -$14.6M ﹤0.01% 1691
2020
Q2
$30M Sell
797,978
-3,552,992
-82% -$127M 0.01% 1177
2020
Q1
$130M Buy
4,350,970
+1,139,582
+35% +$48.7M 0.06% 245
2019
Q4
$139M Buy
3,211,388
+382,027
+14% +$15.8M 0.06% 282
2019
Q3
$106M Buy
2,829,361
+2,623,737
+1,276% +$94.5M 0.05% 371
2019
Q2
$7.78M Buy
205,624
+193,149
+1,548% +$6.42M ﹤0.01% 2488
2019
Q1
$370K Buy
+12,475
New +$373K ﹤0.01% 7287
2018
Q4
Sell
-8,531
Closed -$260K 9010
2018
Q3
$279K Sell
8,531
-7,702
-47% -$254K ﹤0.01% 7684
2018
Q2
$536K Sell
16,233
-3,196
-16% -$110K ﹤0.01% 6254
2018
Q1
$692K Buy
+19,429
New +$717K ﹤0.01% 5342
2017
Q3
Sell
-71,237
Closed -$2.34M 7462
2017
Q2
$2.3M Buy
71,237
+47,941
+206% +$1.59M ﹤0.01% 2988
2017
Q1
$829K Sell
23,296
-1,194,249
-98% -$43.7M ﹤0.01% 4276
2016
Q4
$44.3M Buy
1,217,545
+446,600
+58% +$14.8M 0.04% 434
2016
Q3
$22.9M Buy
770,945
+595,038
+338% +$19.2M 0.02% 787
2016
Q2
$5.59M Buy
175,907
+80,936
+85% +$2.56M 0.01% 1730
2016
Q1
$2.92M Buy
+94,971
New +$2.64M ﹤0.01% 2276
2015
Q4
Sell
-4,867
Closed -$146K 8663
2015
Q3
$134K Buy
4,867
+2,915
+149% +$84.6K ﹤0.01% 6644
2015
Q2
$65K Sell
1,952
-182,756
-99% -$6.03M ﹤0.01% 7467
2015
Q1
$5.69M Buy
184,708
+144,603
+361% +$4.13M 0.01% 1900
2014
Q4
$1.22M Sell
40,105
-107,266
-73% -$3.35M ﹤0.01% 3516
2014
Q3
$4.97M Buy
147,371
+107,372
+268% +$3.81M 0.01% 1990
2014
Q2
$1.29M Buy
39,999
+37,534
+1,523% +$1.21M ﹤0.01% 3187
2014
Q1
$79K Sell
2,465
-114,562
-98% -$3.49M ﹤0.01% 6394
2013
Q4
$3.44M Buy
117,027
+57,496
+97% +$1.74M ﹤0.01% 2018
2013
Q3
$1.86M Buy
59,531
+52,886
+796% +$1.66M ﹤0.01% 2471
2013
Q2
$211K Buy
+6,645
New +$201K ﹤0.01% 4622

Other funds holding ACM

Ken Griffin's ACM Position: Q1 2026 in Review

Ken Griffin increased its Aecom (ACM) stake by 39% in Q1 2026, buying an estimated $18.9M and bringing the position to 714,657 shares worth $60.6M. The position accounts for 0.01% of the portfolio, ranked #1180.

Ken Griffin first reported a position in ACM in Q2 2013 and has held it in 47 quarters since. The position peaked at $139M in Q4 2019. 620 funds tracked by Wall St. Rank hold ACM as of Q1 2026.

  • Ken Griffin held 714,657 shares of Aecom worth $60.6M as of Q1 2026.
  • Ken Griffin bought 199,914 Aecom shares in Q1 2026, an estimated $18.9M.
  • Aecom made up 0.01% of Ken Griffin's portfolio in Q1 2026, its #1180 holding.
  • Ken Griffin first reported a position in Aecom in Q2 2013 and has held it in 47 quarters since.
  • Ken Griffin's Aecom position peaked at $139M in Q4 2019.
  • 620 funds tracked by Wall St. Rank held Aecom as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.