BioAtla, Inc. (BCAB) — Institutional Holders, Q2 2026
21 institutional investment managers reported a BCAB position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $1.2M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
BCAB in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- Lido AdvisorsNew · +16,656 sh+$69.0K
- MILLENNIUM MANAGEMENTAdded · +15,483 sh+$64.1K
- Stonepine Capital ManagementAdded · +15,124 sh+$62.6K
- HRT FINANCIALNew · +13,276 sh+$55.0K
- Tower Research Capital (TRC)Added · +523 sh+$2.2K
Biggest sellers
- VANGUARD CAPITAL MANAGEMENTTrimmed · -23,821 sh-$98.6K
- ACADIAN ASSET MANAGEMENTTrimmed · -10,384 sh-$43.0K
- RENAISSANCE TECHNOLOGIESSold out · -10,210 sh-$42.3K
- CITADEL ADVISORSSold out · -8,714 sh-$36.1K
- MARSHALL WACE, LLPSold out · -5,553 sh-$23.0K
BCAB 13F holders ranked 1–21 of 21
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | ACORN CAPITAL ADVISORS#1 · 108,126 sh | 108,126 | $447.6K | 0.12% | -98.0% |
| 2 | MILLENNIUM MANAGEMENT#2 · 70,616 sh | 70,616 | $292.4K | <0.01% | -97.4% |
| 3 | Lido Advisors#3 · 16,656 sh | 16,656 | $69.0K | <0.01% | New |
| 4 | Stonepine Capital Management#4 · 16,432 sh | 16,432 | $68.0K | 0.03% | -74.9% |
| 5 | ACADIAN ASSET MANAGEMENT#5 · 14,294 sh | 14,294 | $58.0K | <0.01% | -98.8% |
| 6 | HRT FINANCIAL#6 · 13,276 sh | 13,276 | $54.0K | <0.01% | New |
| 7 | GEODE CAPITAL MANAGEMENT#7 · 12,819 sh | 12,819 | $53.1K | 0.00% | -98.1% |
| 8 | DEUTSCHE BANK AG\#8 · 10,556 sh | 10,556 | $43.7K | 0.00% | -98.0% |
| 9 | BlackRock#9 · 9,616 sh | 9,616 | $39.8K | 0.00% | -98.0% |
| 10 | VANGUARD CAPITAL MANAGEMENT#10 · 9,164 sh | 9,164 | $37.9K | 0.00% | -99.4% |
| 11 | UBS Group AG#11 · 6,201 sh | 6,201 | $25.7K | 0.00% | -98.3% |
| 12 | VANGUARD FIDUCIARY#12 · 4,730 sh | 4,730 | $19.6K | 0.00% | -98.3% |
| 13 | MORGAN STANLEY#13 · 1,108 sh | 1,108 | $4.6K | 0.00% | -98.0% |
| 14 | Tower Research Capital (TRC)#14 · 863 sh | 863 | $3.6K | <0.01% | -94.9% |
| 15 | SBI Securities , Ltd.#15 · 267 sh | 267 | $1.1K | — | -97.6% |
| 16 | Forum Finance Group S.A.#16 · 400 sh | 400 | $1.0K | <0.01% | New |
| 17 | Twin Lakes Capital Management#17 · 144 sh | 144 | $596.00 | <0.01% | -98.0% |
| 18 | JPMORGAN CHASE#18 · 121 sh | 121 | $464.00 | 0.00% | -6.2% |
| 19 | BARCLAYS PLC#19 · 101 sh | 101 | $418.00 | 0.00% | New |
| 20 | JONES FINANCIAL COMPANIES LLLP#20 · 40 sh | 40 | $147.00 | 0.00% | -98.0% |
| 21 | BNP PARIBAS FINANCIAL MARKETS#21 · 7 sh | 7 | $29.00 | 0.00% | -98.5% |
Funds that sold out of BCAB in Q2 2026 (19)
Held BCAB at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| RENAISSANCE TECHNOLOGIES10,210 sh | 10,210 | $82.2K |
| CITADEL ADVISORS8,714 sh | 8,714 | $70.1K |
| MARSHALL WACE, LLP5,553 sh | 5,553 | $44.4K |
| ADAR1 Capital Management4,562 sh | 4,562 | $36.7K |
| STATE STREET3,028 sh | 3,028 | $24.4K |
| NORTHERN2,070 sh | 2,070 | $16.7K |
| SIMPLEX TRADING1,478 sh | 1,478 | $11.9K |
| XTX Topco Ltd1,132 sh | 1,132 | $9.1K |
| MAI Capital Management1,030 sh | 1,030 | $8.3K |
| Kestra Advisory Services885 sh | 885 | $7.1K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP781 sh | 781 | $6.3K |
| StoneX Group589 sh | 589 | $4.7K |
| COMMONWEALTH EQUITY SERVICES506 sh | 506 | $4.1K |
| JANE STREET GROUP463 sh | 463 | $3.7K |
| Magnus Financial Group400 sh | 400 | $3.2K |
| Vanguard Global Advisers333 sh | 333 | $2.7K |
| Mariner320 sh | 320 | $2.6K |
| Torrey Growth & Income Advisors314 sh | 314 | $2.4K |
| OSAIC10 sh | 10 | $80.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.