Latest Period
Q1 2026
Security Snapshot
BioAtla, Inc. - Common Stocks, par value $0,0001 per share (BCAB) Institutional Ownership
CUSIP: 09077B104
13F Institutional Holders and Ownership History from Q4 2020 to Q1 2026
Institutions Reporting
34
Shares (Excl. Options)
15,379,483
Price
$0.16
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- Security type / class
- Equity / Common Stocks, par value $0,0001 per share
- Symbol
- BCAB on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 15,379,483
- Total 13F value
- $2,469,338
- Portfolio coverage rank
- 0%
- Share change
- +2,209,117
- Value change
- -$141,023
- Number of holders
- 34
- Shares outstanding
- 58,548,563
- SEC-reported price per share
- $0.13
- Insider filing price
- $0.13
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- BCAB - BioAtla, Inc. - Common Stocks, par value $0,0001 per share is tracked under CUSIP 09077B104.
- 34 institutions reported positions in Q1 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 40 to 34 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $7,494,979 to $2,469,338.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 34 institutions filings for Q1 2026.
Security key
09077B104
Latest holder period
Q1 2026
13F holders
34
13D/G owners
5
CIK / CUSIP context first
Open Q1 2026 holders
BCAB full holder history
BioAtla, Inc. SEC filings
BioAtla, Inc. company facts
BioAtla, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 09077B104:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
BCAB
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | 7.7% | -22% | $2,129,415 | -$1,104,235 | 4,839,579 | -34% | Highbridge Capital Management, LLC | 31 Mar 2025 |
| ACORN BIOVENTURES, L.P. | 8.3% | $2,127,449 | 4,835,111 | Anders Hove | 15 May 2025 | |||
| SHORT JAY M PHD | 6.6% | $1,700,884 | 3,865,646 | Jay M. Short | 31 Dec 2024 | |||
| OPOKA INVESTMENT FUND Co | 4.8% | -22% | $1,933,227 | -$507,296 | 2,810,331 | -21% | OPOKA INVESTMENT FUND Co | 09 Jul 2025 |
| MILLENNIUM MANAGEMENT LLC | 1.9% | $482,067 | 1,095,606 | Millennium Management LLC | 31 Dec 2024 |
As of 31 Mar 2026, 34 institutional investors reported holding 15,379,483 shares of BioAtla, Inc. - Common Stocks, par value $0,0001 per share (BCAB). This represents 26% of the company’s total 58,548,563 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
26%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| ACORN CAPITAL ADVISORS, LLC | 9.2% | 5,406,345 | +12% | 0.25% | $865,015 |
| MILLENNIUM MANAGEMENT LLC | 4.7% | 2,756,674 | +262% | 0% | $443,825 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.8% | 1,649,252 | 0% | 0% | $265,530 |
| ACADIAN ASSET MANAGEMENT LLC | 2.1% | 1,233,919 | +63% | 0% | $198,000 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.2% | 689,182 | +38% | 0% | $110,976 |
| DEUTSCHE BANK AG\ | 0.9% | 525,352 | -0% | 0% | $84,056 |
| RENAISSANCE TECHNOLOGIES LLC | 0.87% | 510,514 | -28% | 0% | $82,193 |
| BlackRock, Inc. | 0.82% | 480,931 | -0% | 0% | $77,430 |
| CITADEL ADVISORS LLC | 0.74% | 435,675 | 0% | $70,144 | |
| UBS Group AG | 0.64% | 375,569 | +66% | 0% | $60,466 |
| VANGUARD FIDUCIARY TRUST CO | 0.47% | 273,427 | 0% | 0% | $44,022 |
| ADAR1 Capital Management, LLC | 0.39% | 228,107 | +25% | 0% | $36,725 |
| STATE STREET CORP | 0.26% | 151,377 | 0% | 0% | $24,372 |
| NORTHERN TRUST CORP | 0.18% | 103,494 | 0% | 0% | $16,663 |
| SIMPLEX TRADING, LLC | 0.13% | 73,901 | -39% | 0% | $11,898 |
| Stonepine Capital Management, LLC | 0.11% | 65,387 | 0.01% | $10,527 | |
| XTX Topco Ltd | 0.1% | 56,614 | -6.3% | 0% | $9,115 |
| MORGAN STANLEY | 0.09% | 55,426 | +27% | 0% | $8,923 |
| MAI Capital Management | 0.09% | 51,504 | 0% | 0% | $8,293 |
| Kestra Advisory Services, LLC | 0.08% | 44,250 | 0% | $7,124 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.07% | 39,056 | -52% | 0% | $6,288 |
| StoneX Group Inc. | 0.05% | 29,466 | 0% | $4,744 | |
| COMMONWEALTH EQUITY SERVICES, LLC | 0.04% | 25,300 | 0% | 0% | $4,070 |
| JANE STREET GROUP, LLC | 0.04% | 23,142 | -93% | 0% | $3,726 |
| Magnus Financial Group LLC | 0.03% | 20,000 | 0% | 0% | $3,220 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
22
Latest
Q1 2026
Rows shown
1-22 of 22
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 15,379,483 | $2,469,338 | -$141,023 | $0.16 | 34 |
| 2025 Q4 | 13,178,637 | $7,494,979 | -$262,374 | $0.57 | 40 |
| 2025 Q3 | 13,349,032 | $9,190,012 | +$218,760 | $0.69 | 43 |
| 2025 Q2 | 13,168,921 | $5,214,805 | -$178,456 | $0.40 | 39 |
| 2025 Q1 | 13,676,589 | $4,757,169 | -$6,041,757 | $0.35 | 40 |
| 2024 Q4 | 24,014,047 | $14,192,960 | -$3,984,785 | $0.59 | 67 |
| 2024 Q3 | 17,681,418 | $31,044,305 | -$6,375,131 | $1.76 | 63 |
| 2024 Q2 | 22,134,924 | $30,397,774 | -$9,819,957 | $1.37 | 78 |
| 2024 Q1 | 25,353,603 | $87,226,850 | -$3,078,466 | $3.44 | 83 |
| 2023 Q4 | 27,002,533 | $66,550,242 | -$6,102,978 | $2.46 | 79 |
| 2023 Q3 | 29,893,256 | $50,818,372 | -$3,978,003 | $1.70 | 80 |
| 2023 Q2 | 32,003,208 | $96,009,836 | -$889,082 | $3.00 | 86 |
| 2023 Q1 | 32,818,307 | $87,622,240 | -$35,920,780 | $2.68 | 79 |
| 2022 Q4 | 33,849,374 | $279,248,047 | +$75,723,026 | $8.25 | 88 |
| 2022 Q3 | 24,872,441 | $191,538,348 | +$24,104,114 | $7.70 | 66 |
| 2022 Q2 | 23,517,118 | $67,049,000 | -$8,813,651 | $2.85 | 71 |
| 2022 Q1 | 25,528,713 | $127,715,000 | -$39,588,884 | $5.00 | 91 |
| 2021 Q4 | 26,409,935 | $518,424,807 | +$9,459,769 | $19.63 | 79 |
| 2021 Q3 | 25,357,996 | $746,373,968 | +$120,415,617 | $29.44 | 83 |
| 2021 Q2 | 21,165,507 | $896,994,925 | +$89,307,130 | $42.38 | 73 |
| 2021 Q1 | 19,002,884 | $964,589,936 | +$187,867,257 | $50.84 | 62 |
| 2020 Q4 | 15,664,281 | $530,219,000 | +$530,219,000 | $34.01 | 53 |