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Livermore
Livermore
ZHEN

Renaissance Technologies LLC

SEC CIK
0001037389
Latest filing
Aug 13, 2026

ACM holding history

Aecom in every 13F filed by Renaissance Technologies LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

ACM overviewAll 13F holders of ACMFull Q2 2026 holdings

Shares (Q2 2026)
746,877
Value
$52.1M
% of portfolio
0.1%
Quarters held
19
Since Q1 2021
Holdings of ACM by Renaissance Technologies LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026746,877$52.1M0.1%+84,600+12.8%AddedHolders
Q1 2026662,277$56.2M0.1%+24,700+3.9%AddedHolders
Q4 2025637,577$60.8M0.1%+187,600+41.7%AddedHolders
Q3 2025449,977$58.7M0.1%+187,250+71.3%AddedHolders
Q2 2025262,727$29.7M<0.1%−83,650−24.1%ReducedHolders
Q1 2025346,377$32.1M<0.1%+19,900+6.1%AddedHolders
Q4 2024326,477$34.9M0.1%−198,700−37.8%ReducedHolders
Q3 2024525,177$54.2M0.1%+198,100+60.6%AddedHolders
Q2 2024327,077$28.8M<0.1%+16,100+5.2%AddedHolders
Q1 2024310,977$30.5M<0.1%+48,400+18.4%AddedHolders
Q4 2023262,577$24.3M<0.1%+251,000+2,168.1%AddedHolders
Q3 202311,577$961.0K<0.1%+11,577NewHolders
Q2 20230$00.0%−66,677−100.0%Sold outHolders
Q1 202366,677$5.62M<0.1%−191,300−74.2%ReducedHolders
Q4 2022257,977$21.9M<0.1%+257,977NewHolders
Q2 20220$00.0%−144,077−100.0%Sold outHolders
Q1 2022144,077$11.1M<0.1%+34,900+32.0%AddedHolders
Q4 2021109,177$8.45M<0.1%−67,100−38.1%ReducedHolders
Q3 2021176,277$11.1M<0.1%−278,900−61.3%ReducedHolders
Q2 2021455,177$28.8M<0.1%+119,800+35.7%AddedHolders
Q1 2021335,377$21.5M<0.1%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.