SEC 13F Intelligence

Primecap Management Co/Ca/ / ACM

Primecap Management Co/Ca/’s Aecom Position

Does Primecap Management Co/Ca/ own Aecom (ACM)? Yes — 8.65M shares worth $733M (+0.58% of its 13F portfolio) as of Q1 2026, down from 8.67M shares the prior filed quarter.

Position Value
$733M
Q1 2026
Shares
8.65M
% of Portfolio
+0.58%
Quarters Held
30
currently held

Position History ACM

Reported value by quarter
Q4 ’18: $570MQ4 ’18Q1 ’19: $644MQ2 ’19: $820MQ3 ’19: $822MQ4 ’19: $955MQ4 ’19Q1 ’20: $703MQ2 ’20: $854MQ3 ’20: $941MQ4 ’20: $1.1BQ4 ’20Q1 ’21: $1.4BQ2 ’21: $1.4BQ3 ’21: $1.3BQ4 ’21: $1.6BQ4 ’21Q1 ’22: $1.5BQ2 ’22: $1.3BQ3 ’22: $1.3BQ4 ’22: $1.5BQ4 ’22Q1 ’23: $1.4BQ2 ’23: $1.3BQ3 ’23: $1.2BQ4 ’23: $1.3BQ4 ’23Q1 ’24: $1.3BQ2 ’24: $1.1BQ3 ’24: $1.3BQ4 ’24: $1.2BQ4 ’24Q1 ’25: $941MQ2 ’25: $1.1BQ3 ’25: $1.2BQ4 ’25: $826MQ4 ’25Q1 ’26: $733Mfilingsflow.com
QuarterSharesValue% of Portfolio
Q1 20268.65M$733M+0.58%
Q4 20258.67M$826M+0.63%
Q3 20258.88M$1.2B+0.89%
Q2 20259.56M$1.1B+0.86%
Q1 202510.15M$941M+0.78%
Q4 202411.38M$1.2B+0.94%
Q3 202412.51M$1.3B+0.95%
Q2 202413.02M$1.1B+0.83%
Q1 202413.43M$1.3B+0.98%
Q4 202314.01M$1.3B+1.03%
Q3 202314.59M$1.2B+1.02%
Q2 202314.96M$1.3B+1.06%
Q1 202316.12M$1.4B+1.18%
Q4 202217.59M$1.5B+1.37%
Q3 202219.19M$1.3B+1.27%
Q2 202219.40M$1.3B+1.13%
Q1 202219.97M$1.5B+1.16%
Q4 202120.45M$1.6B+1.09%
Q3 202121.28M$1.3B+0.95%
Q2 202121.69M$1.4B+0.92%
Q1 202121.95M$1.4B+0.98%
Q4 202022.15M$1.1B+0.82%
Q3 202022.50M$941M+0.78%
Q2 202022.71M$854M+0.73%
Q1 202023.55M$703M+0.69%
Q4 201922.14M$955M+0.69%
Q3 201921.88M$822M+0.66%
Q2 201921.68M$820M+0.61%
Q1 201921.70M$644M+0.47%
Q4 201821.51M$570M+0.46%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Primecap Management Co/Ca/’s full portfolio or all institutional holders of ACM.