Simplex Trading’s Acadian Asset Management AAMI Stock Holding History

Simplex Trading’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
2025 Q4	–	Sell	-800	Closed	-$38K	–	10449
2025 Q3	$38K	Buy	+800	New	+$35.7K	﹤0.01%	6733
2024 Q2	–	Sell	-100	Closed	-$2K	–	10033
2024 Q1	$2K	Buy	+100	New	+$2.16K	﹤0.01%	8492
2023 Q1	–	Sell	-3,600	Closed	-$74K	–	10342
2022 Q4	$74K	Hold	3,600	–	–	﹤0.01%	5416
2022 Q3	$53K	Hold	3,600	–	–	﹤0.01%	6383
2022 Q2	$64K	Buy	3,600 +3,300	+1,100%	+$67.6K	﹤0.01%	6175
2022 Q1	$7K	Sell	300 -1,300	-81%	-$30.9K	﹤0.01%	9225
2021 Q4	$40K	Buy	1,600 +1,200	+300%	+$33.8K	﹤0.01%	7550
2021 Q3	$9K	Hold	400	–	–	﹤0.01%	9015
2021 Q2	$9K	Buy	400 +394	+6,567%	+$8.97K	﹤0.01%	9182
2021 Q1	$12K	Buy	6 +5	+500%	+$99	﹤0.01%	7817
2020 Q4	$1K	Buy	+1	New	+$17	﹤0.01%	8180

Other funds holding AAMI

Paulson & Co New York $2.58B AUM 68.51% 1-Year Est. Return

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

Jennison Associates New York $167B AUM 44.17% 1-Year Est. Return

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

ECP

Empyrean Capital Partners Los Angeles, California $3.03B AUM 47.81% 1-Year Est. Return

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

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

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Woodline Partners San Francisco, California $32.4B AUM 58.5% 1-Year Est. Return

Simplex Trading's AAMI Position: Q2 2026 in Review

Simplex Trading opened a new position in Acadian Asset Management (AAMI) in Q2 2026: 2,132 shares worth $152K. The stake represents ﹤0.01% of the portfolio and ranks #5058 among its holdings. This is a return to the name: Simplex Trading previously reported a position in AAMI as recently as Q3 2025.

Simplex Trading first reported a position in AAMI in Q1 2021 and has held it in 9 quarters since. The position peaked at $886K in Q1 2021. 303 funds tracked by Wall St. Rank hold AAMI as of Q2 2026.

Simplex Trading held 2,132 shares of Acadian Asset Management worth $152K as of Q2 2026.
Acadian Asset Management was a new Simplex Trading position in Q2 2026.
Acadian Asset Management made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #5058 holding.
Simplex Trading first reported a position in Acadian Asset Management in Q1 2021 and has held it in 9 quarters since.
Simplex Trading's Acadian Asset Management position peaked at $886K in Q1 2021.
303 funds tracked by Wall St. Rank held Acadian Asset Management as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.