Aigen Investment Management’s Aecom ACM Stock Holding History

Aigen Investment Management’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	$1.09M	Buy	15,623 +12,179	+354%	+$932K	0.3%	93
2026 Q1	$292K	Sell	3,444 -23,155	-87%	-$2.19M	0.08%	337
2025 Q4	$2.54M	Buy	+26,599	New	+$3.13M	0.59%	33
2025 Q3	–	Sell	-6,849	Closed	-$773K	–	766
2025 Q2	$773K	Buy	6,849 +3,035	+80%	+$315K	0.11%	303
2025 Q1	$354K	Sell	3,814 -5,082	-57%	-$516K	0.06%	448
2024 Q4	$950K	Buy	+8,896	New	+$971K	0.17%	184
2024 Q3	–	Sell	-10,096	Closed	-$890K	–	695
2024 Q2	$890K	Buy	10,096 +6,792	+206%	+$619K	0.17%	158
2024 Q1	$324K	Buy	+3,304	New	+$299K	0.07%	409
2023 Q2	–	Sell	-17,224	Closed	-$1.45M	–	715
2023 Q1	$1.45M	Buy	+17,224	New	+$1.48M	0.2%	127
2022 Q3	–	Sell	-5,030	Closed	-$328K	–	566
2022 Q2	$328K	Buy	+5,030	New	+$352K	0.06%	382
2020 Q4	–	Sell	-19,592	Closed	-$820K	–	749
2020 Q3	$820K	Buy	+19,592	New	+$747K	0.1%	305
2020 Q2	–	Sell	-39,573	Closed	-$1.18M	–	781
2020 Q1	$1.18M	Buy	+39,573	New	+$1.69M	0.16%	176

Other funds holding ACM

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Aigen Investment Management's ACM Position: Q2 2026 in Review

Aigen Investment Management increased its Aecom (ACM) stake by 354% in Q2 2026, buying an estimated $932K and bringing the position to 15,623 shares worth $1.09M. The position accounts for 0.3% of the portfolio, ranked #93.

Aigen Investment Management first reported a position in ACM in Q1 2020 and has held it in 12 quarters since. The position peaked at $2.54M in Q4 2025. 574 funds tracked by Wall St. Rank hold ACM as of Q2 2026.

Aigen Investment Management held 15,623 shares of Aecom worth $1.09M as of Q2 2026.
Aigen Investment Management bought 12,179 Aecom shares in Q2 2026, an estimated $932K.
Aecom made up 0.3% of Aigen Investment Management's portfolio in Q2 2026, its #93 holding.
Aigen Investment Management first reported a position in Aecom in Q1 2020 and has held it in 12 quarters since.
Aigen Investment Management's Aecom position peaked at $2.54M in Q4 2025.
574 funds tracked by Wall St. Rank held Aecom as of Q2 2026.

Based on Aigen Investment Management's 13F filing for Q2 2026, filed 14 Aug 2026.