New Positions
6 managers initiated
Top five by reported value
Bioatla Inc NASDAQ NMS - GLOBAL MARKET:BCAB
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
6 new15 added21 reduced10 exited
Total Institutional Holders
42
as of 2025-12-31
Top Holder
ACORN CAPITAL ADVISORS, LLC
$2.8M
Largest QoQ Increase
MARSHALL WACE, LLP
+891,580 sh
Largest QoQ Decrease
TANG CAPITAL MANAGEMENT LLC
-1,374,076 sh
New Positions(6)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| MARSHALL WACE, LLP | 891,580 | +891,580 | $508.2K | +$508.2K | — |
| ADAR1 Capital Management, LLC | 183,107 | +183,107 | $104.0K | +$104.0K | — |
| Tower Research Capital LLC (TRC) | 5,318 | +5,318 | $3.0K | +$3.0K | — |
| TUCKER ASSET MANAGEMENT LLC | 500 | +500 | $284 | +$284 | — |
| Virtu Financial LLC | 55,460 | +55,460 | $31 | +$31 | — |
| Avion Wealth | 490 | +490 | $0 | $0 | — |
Added To(15)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| MILLENNIUM MANAGEMENT LLC | 762,394 | +421,072 | $432.8K | +$198.0K | 123.4% |
| UBS Group AG | 225,684 | +138,941 | $128.2K | +$68.5K | 160.2% |
| SIMPLEX TRADING, LLC | 120,391 | +84,235 | $68.4K | +$68.4K | 233.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 500,328 | +5,117 | $284.1K | -$56.6K | 1.0% |
| JANE STREET GROUP, LLC | 346,774 | +123,597 | $196.9K | +$43.3K | 55.4% |
| XTX Topco Ltd | 60,395 | +41,015 | $34.3K | +$21.0K | 211.6% |
| TWO SIGMA INVESTMENTS, LP | 81,330 | +40,614 | $46.2K | +$18.2K | 99.7% |
| MORGAN STANLEY | 43,653 | +28,227 | $24.8K | +$14.2K | 183.0% |
| PVG ASSET MANAGEMENT CORP | 69,000 | +4,000 | $39.2K | +$13.4K | 6.2% |
| NORTHERN TRUST CORP | 103,494 | +2,666 | $58.8K | -$10.6K | 2.6% |
| MAI Capital Management | 51,504 | +6,408 | $29.2K | -$1.8K | 14.2% |
| Torrey Growth & Income Advisors | 15,687 | +1,000 | $8.9K | -$1.2K | 6.8% |
| SBI Securities Co., Ltd. | 8,790 | +1,334 | $5.0K | -$139 | 17.9% |
| BANK OF AMERICA CORP /DE/ | 432 | +15 | $245 | -$42 | 3.6% |
| HRT FINANCIAL LP | 54,742 | +11,386 | $31 | +$2 | 26.3% |
Reduced(21)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| ACORN CAPITAL ADVISORS, LLC | 4,835,111 | 0 | $2.8M | -$580.2K | 0.0% |
| VANGUARD GROUP INC | 1,945,795 | 0 | $1.1M | -$233.5K | 0.0% |
| CITADEL ADVISORS LLC | 11,300 | -301,736 | $6.4K | -$208.9K | -96.4% |
| RENAISSANCE TECHNOLOGIES LLC | 707,214 | -93,417 | $401.5K | -$149.3K | -11.7% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 81,687 | -170,896 | $46.4K | -$127.4K | -67.7% |
| DEUTSCHE BANK AG\ | 525,353 | 0 | $299.5K | -$63.0K | 0.0% |
| BlackRock, Inc. | 480,933 | 0 | $273.0K | -$57.8K | 0.0% |
| Magnus Financial Group LLC | 20,000 | -27,232 | $11.4K | -$21.1K | -57.6% |
| STATE STREET CORP | 151,377 | 0 | $85.9K | -$18.2K | 0.0% |
| COMMONWEALTH EQUITY SERVICES, LLC | 25,300 | 0 | $14.4K | +$14.3K | 0.0% |
| COLUMBIA ADVISORY PARTNERS LLC | 26,070 | 0 | $14.8K | -$3.1K | 0.0% |
| Global Wealth Strategies & Associates | 13,769 | 0 | $7.8K | -$1.7K | 0.0% |
| HighTower Advisors, LLC | 13,000 | 0 | $7.4K | -$1.6K | 0.0% |
| Twin Lakes Capital Management, LLC | 9,000 | 0 | $5.1K | -$1.1K | 0.0% |
| JPMORGAN CHASE & CO | 129 | -1,000 | $73 | -$704 | -88.6% |
| JONES FINANCIAL COMPANIES LLLP | 2,000 | -325 | $1.1K | -$421 | -14.0% |
| ACADIAN ASSET MANAGEMENT LLC | 757,671 | -172,791 | $429 | -$209 | -18.6% |
| ARCADIA INVESTMENT MANAGEMENT CORP/MI | 1,403 | 0 | $797 | -$169 | 0.0% |
| CIBC Private Wealth Group, LLC | 1,290 | 0 | $732 | -$155 | 0.0% |
| ADVISOR GROUP HOLDINGS, INC. | 500 | 0 | $285 | +$60 | 0.0% |
| BNP PARIBAS ARBITRAGE, SNC | 472 | 0 | $268 | -$57 | 0.0% |
Sold Out(10)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| TANG CAPITAL MANAGEMENT LLC | 0 | -1,374,076 | $0 | -$945.2K | — |
| NORGES BANK | 0 | -389,100 | $0 | -$684.8K | — |
| NEW YORK STATE COMMON RETIREMENT FUND | 0 | -109,249 | $0 | -$288.7K | — |
| Sheets Smith Investment Management | 0 | -67,000 | $0 | -$46.1K | — |
| CITIGROUP INC | 0 | -26,132 | $0 | -$18.0K | — |
| NorthRock Partners, LLC | 0 | -20,783 | $0 | -$14.3K | — |
| TWO SIGMA SECURITIES, LLC | 0 | -13,761 | $0 | -$9.5K | — |
| GROUP ONE TRADING, L.P. | 0 | -1,155 | $0 | -$795 | — |
| BARCLAYS PLC | 0 | -183 | $0 | -$126 | — |
| Royal Bank of Canada | 0 | -878 | $0 | $0 | — |
Top Holders by reported value
Ranked by the dollar value reported on the latest Form 13F. Share counts reflect long positions as of 2025-12-31.
| Manager | Shares | $ Value | Δ Shares | QoQ % |
|---|---|---|---|---|
| ACORN CAPITAL ADVISORS, LLC | 4,835,111 | $2.8M | 0 | 0.0% |
| VANGUARD GROUP INC | 1,945,795 | $1.1M | 0 | 0.0% |
| MARSHALL WACE, LLP | 891,580 | $508.2K | +891,580 | — |
| MILLENNIUM MANAGEMENT LLC | 762,394 | $432.8K | +421,072 | 123.4% |
| RENAISSANCE TECHNOLOGIES LLC | 707,214 | $401.5K | -93,417 | -11.7% |
| DEUTSCHE BANK AG\ | 525,353 | $299.5K | 0 | 0.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 500,328 | $284.1K | +5,117 | 1.0% |
| BlackRock, Inc. | 480,933 | $273.0K | 0 | 0.0% |
| JANE STREET GROUP, LLC | 346,774 | $196.9K | +123,597 | 55.4% |
| UBS Group AG | 225,684 | $128.2K | +138,941 | 160.2% |
| ADAR1 Capital Management, LLC | 183,107 | $104.0K | +183,107 | — |
| STATE STREET CORP | 151,377 | $85.9K | 0 | 0.0% |
| SIMPLEX TRADING, LLC | 120,391 | $68.4K | +84,235 | 233.0% |
| NORTHERN TRUST CORP | 103,494 | $58.8K | +2,666 | 2.6% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 81,687 | $46.4K | -170,896 | -67.7% |
| TWO SIGMA INVESTMENTS, LP | 81,330 | $46.2K | +40,614 | 99.7% |
| PVG ASSET MANAGEMENT CORP | 69,000 | $39.2K | +4,000 | 6.2% |
| XTX Topco Ltd | 60,395 | $34.3K | +41,015 | 211.6% |
| MAI Capital Management | 51,504 | $29.2K | +6,408 | 14.2% |
| MORGAN STANLEY | 43,653 | $24.8K | +28,227 | 183.0% |
New & Closed Positions this quarter
Closed Positions
10 managers exited
Top five by prior-quarter value
- TANG CAPITAL MANAGEMENT LLC$945.2K
- NORGES BANK$684.8K
- NEW YORK STATE COMMON RETIREMENT FUND$288.7K
- Sheets Smith Investment Management$46.1K
- CITIGROUP INC$18.0K
Methodology
Form 13F is the SEC's quarterly disclosure for institutional investment managers exercising discretion over $100 million or more in qualifying U.S. equity securities. Managers must file within 45 days of each calendar quarter end, which is why holdings shown here reflect a snapshot at the period date — not real-time positioning.
Quarter-over-quarter deltas compare each manager's most recently reported share count for BCAB against its prior-quarter count. New positions are entries where the prior count was zero; closed positions are entries where the current count is zero. Amendments (13F-HR/A) replace prior filings for the same period.
Source: SEC EDGAR Form 13F (XML information tables). Dollar values are as reported by the manager and may use mid-quarter pricing conventions. CUSIP-to-ticker resolution is best-effort.