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	–	Sell	-1,500	Closed	-$13.5K	–	9447
2025 Q4	$13.5K	Buy	1,500 +1,300	+650%	+$11.3K	﹤0.01%	6786
2025 Q3	$1K	Buy	+200	New	+$1.78K	﹤0.01%	8807
2025 Q2	–	Sell	-200	Closed	-$3K	–	9012
2025 Q1	$3K	Buy	+200	New	+$4.01K	﹤0.01%	7807
2023 Q2	–	Sell	-400	Closed	-$4K	–	9304
2023 Q1	$4K	Buy	+400	New	+$4.7K	﹤0.01%	8169
2022 Q4	–	Sell	-300	Closed	-$5K	–	9598
2022 Q3	$5K	Buy	300 +100	+50%	+$1.9K	﹤0.01%	8767
2022 Q2	$3K	Sell	200 -9,300	-98%	-$152K	﹤0.01%	9137
2022 Q1	$133K	Sell	9,500 -7,200	-43%	-$147K	﹤0.01%	5734
2021 Q4	$634K	Buy	16,700 +10,000	+149%	+$346K	﹤0.01%	3486
2021 Q3	$125K	Buy	6,700 +100	+2%	+$2.44K	﹤0.01%	6303
2021 Q2	$99K	Buy	+6,600	New	+$103K	﹤0.01%	6736
2021 Q1	–	Sell	-1	Closed	-$1K	–	9216
2020 Q4	$1K	Buy	+1	New	+$10	﹤0.01%	8107

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.