Tang Capital Management’s BioAtla BCAB Stock Holding History

Tang Capital Management’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
2025 Q4	–	Sell	-27,482	Closed	-$945K	–	90
2025 Q3	$945K	Hold	27,482	–	–	0.04%	155
2025 Q2	$544K	Hold	27,482	–	–	0.03%	184
2025 Q1	$477K	Hold	27,482	–	–	0.03%	185
2024 Q4	$812K	Buy	27,482 +10,000	+57%	+$839K	0.05%	165
2024 Q3	$1.54M	Sell	17,482 -10,000	-36%	-$839K	0.11%	101
2024 Q2	$1.88M	Sell	27,482 -2,000	-7%	-$238K	0.19%	79
2024 Q1	$5.07M	Sell	29,482 -21,000	-42%	-$2.61M	0.53%	59
2023 Q4	$6.21M	Sell	50,482 -25,086	-33%	-$2.17M	0.57%	41
2023 Q3	$6.42M	Buy	75,568 +2,086	+3%	+$266K	0.91%	36
2023 Q2	$11M	Buy	73,482 +1,000	+1%	+$172K	1.62%	21
2023 Q1	$9.71M	Buy	72,482 +10,000	+16%	+$1.8M	1.45%	25
2022 Q4	$25.8M	Buy	62,482 +23,141	+59%	+$9.6M	3.74%	5
2022 Q3	$15.1M	Sell	39,341 -28,119	-42%	-$9.2M	1.86%	16
2022 Q2	$9.61M	Buy	67,460 +45,460	+207%	+$7.23M	1.46%	21
2022 Q1	$5.5M	Buy	22,000 +16,042	+269%	+$6.71M	1.1%	26
2021 Q4	$5.85M	Buy	+5,958	New	+$7.62M	1.18%	19

Other funds holding BCAB

ACA

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

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

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

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

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

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

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

Jane Street New York $777B AUM 61.18% 1-Year Est. Return

Tang Capital Management's BCAB Position: Q4 2025 in Review

Tang Capital Management sold out of BioAtla (BCAB) in Q4 2025, closing a stake of 27,482 shares — an estimated $945K sold.

Tang Capital Management first reported a position in BCAB in Q4 2021 and held it in 16 quarters. The position peaked at $25.8M in Q4 2022. 41 funds tracked by Wall St. Rank hold BCAB as of Q4 2025.

Tang Capital Management reported no remaining BioAtla position as of Q4 2025 after selling out during the quarter.
Tang Capital Management sold 27,482 BioAtla shares in Q4 2025, an estimated $945K.
Tang Capital Management first reported a position in BioAtla in Q4 2021 and held it in 16 quarters.
Tang Capital Management's BioAtla position peaked at $25.8M in Q4 2022.
41 funds tracked by Wall St. Rank held BioAtla as of Q4 2025.

Based on Tang Capital Management's 13F filing for Q4 2025, filed 17 Feb 2026.