Marshall Wace’s Acadian Asset Management AAMI Stock Holding History

Marshall Wace’s Portfolio AAMI Stock Details AAMI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$218K	Buy	+3,998	New	+$211K	﹤0.01%	2761
2025 Q3	–	Sell	-13,316	Closed	-$469K	–	3523
2025 Q2	$469K	Sell	13,316 -4,453	-25%	-$129K	﹤0.01%	2171
2025 Q1	$460K	Buy	+17,769	New	+$447K	﹤0.01%	2110
2024 Q3	–	Sell	-84,328	Closed	-$1.87M	–	3045
2024 Q2	$1.87M	Buy	+84,328	New	+$1.9M	﹤0.01%	1407
2024 Q1	–	Sell	-34,363	Closed	-$658K	–	2872
2023 Q4	$658K	Buy	+34,363	New	+$607K	﹤0.01%	1616
2022 Q2	–	Sell	-10,730	Closed	-$259K	–	3941
2022 Q1	$259K	Buy	10,730 +2,562	+31%	+$60.9K	﹤0.01%	3010
2021 Q4	$208K	Buy	+8,168	New	+$230K	﹤0.01%	3148
2021 Q1	–	Sell	-37,106	Closed	-$715K	–	2926
2020 Q4	$715K	Buy	+37,106	New	+$624K	﹤0.01%	1342
2019 Q2	–	Sell	-409,321	Closed	-$5.55M	–	1920
2019 Q1	$5.55M	Buy	409,321 +321,881	+368%	+$4.16M	0.05%	442
2018 Q4	$934K	Buy	+87,440	New	+$1.05M	0.01%	935
2017 Q1	–	Sell	-47,747	Closed	-$692K	–	797
2016 Q4	$692K	Buy	+47,747	New	+$677K	﹤0.01%	807
2015 Q3	–	Sell	-63,019	Closed	-$1.12M	–	1084
2015 Q2	$1.12M	Buy	+63,019	New	+$1.19M	0.01%	581

Other funds holding AAMI

Paulson & Co New York $3.11B AUM 94.93% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return

ECP

Empyrean Capital Partners Los Angeles, California $3.07B AUM 34.24% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Impax Asset Management Group London, United Kingdom $14.3B AUM 19.8% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Marshall Wace's AAMI Position: Q1 2026 in Review

Marshall Wace opened a new position in Acadian Asset Management (AAMI) in Q1 2026: 3,998 shares worth $218K. The stake represents ﹤0.01% of the portfolio and ranks #2761 among its holdings. This is a return to the name: Marshall Wace previously reported a position in AAMI as recently as Q2 2025.

Marshall Wace first reported a position in AAMI in Q2 2015 and has held it in 12 quarters since. The position peaked at $5.55M in Q1 2019. 257 funds tracked by Wall St. Rank hold AAMI as of Q1 2026.

Marshall Wace held 3,998 shares of Acadian Asset Management worth $218K as of Q1 2026.
Acadian Asset Management was a new Marshall Wace position in Q1 2026.
Acadian Asset Management made up ﹤0.01% of Marshall Wace's portfolio in Q1 2026, its #2761 holding.
Marshall Wace first reported a position in Acadian Asset Management in Q2 2015 and has held it in 12 quarters since.
Marshall Wace's Acadian Asset Management position peaked at $5.55M in Q1 2019.
257 funds tracked by Wall St. Rank held Acadian Asset Management as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.