BCAB

BioAtla, Inc.

Biological Products, (No Diagnostic Substances)NasdaqNon-accelerated filer<br>Smaller reporting company

Total Trades

11

Buys

11

Sells

0

Largest Trade

$100K–$500K

Insiders

3

Institutional Funds

30

Inst. Value

$1M+

Activist Filings

26

Insider Trades

InsiderTitleTypeValueSharesPriceDate
MCBRINN SYLVIADirectorBUY$1K–$15K4K$2.35Jan 19, 2024
MCBRINN SYLVIADirectorBUY$1K–$15K4K$2.33Dec 27, 2023
MCBRINN SYLVIADirectorBUY$1K–$15K2K$2.54Sep 13, 2023
SHORT JAY M PHDCEOBUY$100K–$500K41K$2.47Mar 30, 2023
Vasquez ChristianSee RemarksBUY$15K–$50K20K$2.40Mar 29, 2023
MCBRINN SYLVIADirectorBUY$15K–$50K4K$8.33Dec 19, 2022
MCBRINN SYLVIADirectorBUY$15K–$50K2K$8.27Nov 23, 2022
MCBRINN SYLVIADirectorBUY$15K–$50K3K$8.63Sep 15, 2022
SHORT JAY M PHDCEOBUY$100K–$500K26K$7.84Aug 15, 2022
SHORT JAY M PHDCEOBUY$100K–$500K69K$2.86Jun 23, 2022
Vasquez ChristianSee RemarksBUY$100K–$500K50K$3.02Jun 9, 2022
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Institutional Ownership

13F filings as of Dec 31, 2025 · 30 funds holding

FundShares
ACADIAN ASSET MANAGEMENT LLC758K
RENAISSANCE TECHNOLOGIES LLC707K
DEUTSCHE BANK AG\525K
BlackRock, Inc.481K
GEODE CAPITAL MANAGEMENT, LLC420K
VANGUARD GROUP INC280K
MARSHALL WACE, LLP250K
JANE STREET GROUP, LLC247K
ADAR1 Capital Management, LLC183K
ADAR1 Capital Management, LLC183K
STATE STREET CORP151K
UBS Group AG140K
SIMPLEX TRADING, LLC120K
PVG ASSET MANAGEMENT CORP69K
Virtu Financial LLC55K
HRT FINANCIAL LP55K
MAI Capital Management52K
COLUMBIA ADVISORY PARTNERS LLC26K
COMMONWEALTH EQUITY SERVICES, LLC25K
Magnus Financial Group LLC20K

Activist & 5%+ Owners

SC 13D/13G filings — investors holding 5%+ of outstanding shares

OPOKA INVESTMENT FUND Co

SC 13G · Oct 15, 2025

4.8%

2.8M shares

ACORN BIOVENTURES, L.P.

SC 13G/A · May 20, 2025

3.7%

2.2M shares

Highbridge Capital Management, LLC

SC 13G/A · Apr 25, 2025

7.7%

4.8M shares

OPOKA INVESTMENT FUND Co

SC 13G · Mar 18, 2025

6.1%

3.5M shares

9.9%

7.3M shares

Jay M. Short

SC 13G/A · Feb 7, 2025

6.6%

3.9M shares

Millennium Management LLC

SC 13G/A · Jan 24, 2025

1.9%

1.1M shares

Tang Capital Management, LLC

SC 13G/A · Nov 14, 2024

1.8%

874K shares

Soleus Private Equity Fund I, l.p.

SC 13D/A · Oct 2, 2024

1.3%

602K shares

Soleus Private Equity Fund I, l.p.

SC 13D/A · Sep 6, 2024

1.8%

884K shares

Millennium Management LLC

SC 13G · Aug 7, 2024

5.0%

2.4M shares

BlackRock, Inc.

SC 13G/A · Jul 8, 2024

1.6%

792K shares

Soleus Private Equity Fund I, l.p.

SC 13D/A · Apr 16, 2024

2.4%

1.1M shares

TANG CAPITAL PARTNERS, LP

SC 13G/A · Feb 14, 2024

5.3%

2.5M shares

BlackRock, Inc.

SC 13G · Jan 29, 2024

6.0%

2.9M shares

Acorn Bioventures, L.P.

SC 13G · Apr 27, 2023

2.8%

1.3M shares

Jay M. Short

SC 13G/A · Feb 27, 2023

6.4%

3.0M shares

TANG CAPITAL PARTNERS, LP

SC 13G/A · Feb 14, 2023

8.6%

3.1M shares

5.4%

2.5M shares

SOLEUS PRIVATE EQUITY FUND I, L.P.

SC 13D/A · Jan 9, 2023

2.5%

1.2M shares

FMR LLC

SC 13G/A · Jun 10, 2022

0.9%

315K shares

TANG CAPITAL PARTNERS, LP

SC 13G · Apr 28, 2022

6.4%

2.3M shares

Jay M. Short

SC 13G/A · Feb 14, 2022

7.5%

2.7M shares

2.4%

857K shares

Pfizer Inc. 13-5315170

SC 13G/A · Feb 11, 2022

3.9%

1.4M shares

4.0%

1.4M shares

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