Marshall Wace’s American Assets Trust AAT Stock Holding History

Marshall Wace’s Portfolio AAT Stock Details AAT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$210K	Buy	+8,500	New	+$186K	﹤0.01%	2824
2023 Q2	–	Sell	-201,981	Closed	-$3.75M	–	2401
2023 Q1	$3.75M	Buy	+201,981	New	+$4.92M	0.01%	1133
2022 Q3	–	Sell	-14,569	Closed	-$433K	–	3272
2022 Q2	$433K	Buy	14,569 +615	+4%	+$20.6K	﹤0.01%	2861
2022 Q1	$529K	Sell	13,954 -24,881	-64%	-$912K	﹤0.01%	2750
2021 Q4	$1.46M	Buy	+38,835	New	+$1.46M	﹤0.01%	2253
2021 Q1	–	Sell	-42,263	Closed	-$1.22M	–	2409
2020 Q4	$1.22M	Sell	42,263 -122,938	-74%	-$3.27M	0.01%	1134
2020 Q3	$3.98M	Sell	165,201 -57,183	-26%	-$1.49M	0.03%	596
2020 Q2	$6.19M	Buy	222,384 +215,610	+3,183%	+$5.9M	0.04%	409
2020 Q1	$169K	Buy	+6,774	New	+$274K	﹤0.01%	1210
2019 Q3	–	Sell	-22,788	Closed	-$1.07M	–	1636
2019 Q2	$1.07M	Buy	+22,788	New	+$1.05M	0.01%	913
2019 Q1	–	Sell	-65,678	Closed	-$2.64M	–	1675
2018 Q4	$2.64M	Buy	+65,678	New	+$2.56M	0.03%	659

Other funds holding AAT

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

AAI

American Assets Inc San Diego, California $332M AUM 17.75% 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

Senvest Management New York $3.41B AUM 66.27% 1-Year Est. Return

LSV Asset Management Chicago, Illinois $55.1B AUM 45.38% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

AAIM

American Assets Investment Management San Diego, California $1.65B AUM 59.75% 1-Year Est. Return

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

Charles Schwab San Francisco, California $751B AUM 38.74% 1-Year Est. Return

Marshall Wace's AAT Position: Q2 2026 in Review

Marshall Wace opened a new position in American Assets Trust (AAT) in Q2 2026: 8,500 shares worth $210K. The stake represents ﹤0.01% of the portfolio and ranks #2824 among its holdings. This is a return to the name: Marshall Wace previously reported a position in AAT as recently as Q1 2023.

Marshall Wace first reported a position in AAT in Q4 2018 and has held it in 11 quarters since. The position peaked at $6.19M in Q2 2020. 244 funds tracked by Wall St. Rank hold AAT as of Q2 2026.

Marshall Wace held 8,500 shares of American Assets Trust worth $210K as of Q2 2026.
American Assets Trust was a new Marshall Wace position in Q2 2026.
American Assets Trust made up ﹤0.01% of Marshall Wace's portfolio in Q2 2026, its #2824 holding.
Marshall Wace first reported a position in American Assets Trust in Q4 2018 and has held it in 11 quarters since.
Marshall Wace's American Assets Trust position peaked at $6.19M in Q2 2020.
244 funds tracked by Wall St. Rank held American Assets Trust as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.