Simplex Trading’s BioAtla BCAB Stock Holding History

Simplex Trading’s Portfolio BCAB Stock Details BCAB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$32	Sell	4 -8	-67%	-$94	﹤0.01%	8915
2025 Q4	$340	Buy	+12	New	+$470	﹤0.01%	8206
2024 Q4	–	Sell	-64	Closed	-$5K	–	8497
2024 Q3	$5K	Buy	64 +34	+113%	+$2.85K	﹤0.01%	7576
2024 Q2	$2K	Buy	+30	New	+$3.57K	﹤0.01%	8223
2023 Q3	–	Sell	-82	Closed	-$12K	–	8658
2023 Q2	$12K	Sell	82 -26	-24%	-$4.47K	﹤0.01%	7217
2023 Q1	$14K	Buy	108 +66	+157%	+$11.9K	﹤0.01%	7232
2022 Q4	$17K	Sell	42 -2	-5%	-$830	﹤0.01%	7019
2022 Q3	$16K	Sell	44 -210	-83%	-$68.7K	﹤0.01%	7734
2022 Q2	$36K	Buy	254 +16	+7%	+$2.55K	﹤0.01%	6904
2022 Q1	$59K	Buy	238 +236	+11,800%	+$98.7K	﹤0.01%	6900
2021 Q4	$1K	Buy	+2	New	+$2.56K	﹤0.01%	10139

Other funds holding BCAB

ACA

Acorn Capital Advisors New York $352M AUM 299.18% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

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

Deutsche Bank Frankfurt Am Main Ge, Germany $303B AUM 30.15% 1-Year Est. Return

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

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

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Simplex Trading's BCAB Position: Q1 2026 in Review

Simplex Trading reduced its BioAtla (BCAB) stake by 39% in Q1 2026, selling an estimated $10.9K and leaving 1,478 shares worth $11.9K. The position accounts for ﹤0.01% of the portfolio, ranked #7202.

Simplex Trading first reported a position in BCAB in Q4 2021 and has held it in 15 quarters since. The position peaked at $167K in Q4 2021. 36 funds tracked by Wall St. Rank hold BCAB as of Q1 2026.

Simplex Trading held 1,478 shares of BioAtla worth $11.9K as of Q1 2026.
Simplex Trading sold 930 BioAtla shares in Q1 2026, an estimated $10.9K.
BioAtla made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #7202 holding.
Simplex Trading first reported a position in BioAtla in Q4 2021 and has held it in 15 quarters since.
Simplex Trading's BioAtla position peaked at $167K in Q4 2021.
36 funds tracked by Wall St. Rank held BioAtla as of Q1 2026.

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