Simplex Trading’s Grid Dynamics Holdings GDYN Stock Holding History

Simplex Trading’s Portfolio GDYN Stock Details GDYN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$76.8K	Sell	13,482 -17,927	-57%	-$132K	﹤0.01%	5385
2025 Q4	$284K	Buy	31,409 +28,733	+1,074%	+$249K	﹤0.01%	3875
2025 Q3	$20K	Buy	+2,676	New	+$23.9K	﹤0.01%	7319
2025 Q2	–	Sell	-13	Closed	-$171	–	9011
2025 Q1	$0	Sell	13 -5,026	-100%	-$101K	﹤0.01%	8880
2024 Q4	$112K	Buy	5,039 +4,724	+1,500%	+$82.5K	﹤0.01%	5074
2024 Q3	$4K	Sell	315 -667	-68%	-$8.62K	﹤0.01%	7714
2024 Q2	$10K	Buy	+982	New	+$10.1K	﹤0.01%	7420
2023 Q4	–	Sell	-4,925	Closed	-$60K	–	9152
2023 Q3	$59K	Buy	+4,925	New	+$54.6K	﹤0.01%	5647
2022 Q3	–	Sell	-35	Closed	-$663	–	10243
2022 Q2	$0	Sell	35 -4,339	-99%	-$70.9K	﹤0.01%	10328
2022 Q1	$61K	Buy	4,374 +3,977	+1,002%	+$81.3K	﹤0.01%	6852
2021 Q4	$15K	Sell	397 -1,183	-75%	-$40.9K	﹤0.01%	8676
2021 Q3	$29K	Sell	1,580 -1,213	-43%	-$29.7K	﹤0.01%	8115
2021 Q2	$41K	Buy	+2,793	New	+$43.8K	﹤0.01%	7890
2021 Q1	–	Sell	-172	Closed	-$2.47K	–	9215
2020 Q4	$2K	Buy	+172	New	+$1.66K	﹤0.01%	7972

Other funds holding GDYN

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

Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

BAMCO Inc New York $33.1B AUM 11.16% 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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

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

Simplex Trading's GDYN Position: Q1 2026 in Review

Simplex Trading reduced its Grid Dynamics Holdings (GDYN) stake by 57% in Q1 2026, selling an estimated $132K and leaving 13,482 shares worth $76.8K. The position accounts for ﹤0.01% of the portfolio, ranked #5385.

Simplex Trading first reported a position in GDYN in Q4 2020 and has held it in 14 quarters since. The position peaked at $284K in Q4 2025. 197 funds tracked by Wall St. Rank hold GDYN as of Q1 2026.

Simplex Trading held 13,482 shares of Grid Dynamics Holdings worth $76.8K as of Q1 2026.
Simplex Trading sold 17,927 Grid Dynamics Holdings shares in Q1 2026, an estimated $132K.
Grid Dynamics Holdings made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #5385 holding.
Simplex Trading first reported a position in Grid Dynamics Holdings in Q4 2020 and has held it in 14 quarters since.
Simplex Trading's Grid Dynamics Holdings position peaked at $284K in Q4 2025.
197 funds tracked by Wall St. Rank held Grid Dynamics Holdings as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.