New Positions
4 managers initiated
Top five by reported value
- Mink Brook Asset Management LLC$554.9K
- JANE STREET GROUP, LLC$249.5K
- ESSEX INVESTMENT MANAGEMENT CO LLC$126.1K
- UBS Group AG$1.3K
Champions Oncology Inc NASDAQ NMS - GLOBAL MARKET:CSBR
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
4 new7 added17 reduced3 exited
Total Institutional Holders
28
as of 2025-12-31
Top Holder
BATTERY MANAGEMENT CORP.
$16.7M
Largest QoQ Increase
Mink Brook Asset Management LLC
+80,305 sh
Largest QoQ Decrease
SUSQUEHANNA INTERNATIONAL GROUP, LLP
-19,811 sh
New Positions(4)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| Mink Brook Asset Management LLC | 80,305 | +80,305 | $554.9K | +$554.9K | — |
| JANE STREET GROUP, LLC | 36,100 | +36,100 | $249.5K | +$249.5K | — |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 18,249 | +18,249 | $126.1K | +$126.1K | — |
| UBS Group AG | 190 | +190 | $1.3K | +$1.3K | — |
Added To(7)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| MORGAN STANLEY | 229,659 | +40,059 | $1.6M | +$359.3K | 21.1% |
| VANGUARD GROUP INC | 334,605 | +1,347 | $2.3M | +$154.3K | 0.4% |
| BlackRock, Inc. | 122,771 | +861 | $848.3K | +$59.0K | 0.7% |
| GEODE CAPITAL MANAGEMENT, LLC | 75,819 | +1,410 | $524.0K | +$42.1K | 1.9% |
| DIMENSIONAL FUND ADVISORS LP | 25,354 | +1,652 | $174.9K | +$21.4K | 7.0% |
| BANK OF AMERICA CORP /DE/ | 21,985 | +208 | $151.9K | +$10.9K | 0.9% |
| GSA CAPITAL PARTNERS LLP | 20,978 | +10,563 | $145 | +$78 | 101.4% |
Reduced(17)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| BATTERY MANAGEMENT CORP. | 2,421,673 | 0 | $16.7M | +$1.1M | 0.0% |
| NEA Management Company, LLC | 1,713,720 | 0 | $11.8M | +$745.5K | 0.0% |
| TOCQUEVILLE ASSET MANAGEMENT L.P. | 319,674 | 0 | $2.2M | +$139.1K | 0.0% |
| NORTHERN TRUST CORP | 46,146 | -288 | $318.9K | +$18.2K | -0.6% |
| HighTower Advisors, LLC | 35,158 | 0 | $242.9K | +$15.3K | 0.0% |
| RENAISSANCE TECHNOLOGIES LLC | 154,839 | -12,422 | $1.1M | -$13.1K | -7.4% |
| Bank of New York Mellon Corp | 26,749 | 0 | $184.8K | +$11.6K | 0.0% |
| STATE STREET CORP | 26,203 | 0 | $181.1K | +$11.4K | 0.0% |
| MILLENNIUM MANAGEMENT LLC | 10,203 | -2,432 | $70.5K | -$11.3K | -19.2% |
| Mesirow Financial Investment Management, Inc. | 10,300 | -1,700 | $71.2K | -$6.5K | -14.2% |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | 13,031 | -1,436 | $90.0K | -$3.6K | -9.9% |
| WHITTIER TRUST CO | 800 | 0 | $5.3K | +$248 | 0.0% |
| SBI Securities Co., Ltd. | 4 | -12 | $28 | -$76 | -75.0% |
| ACADIAN ASSET MANAGEMENT LLC | 29,995 | -6,187 | $206 | -$26 | -17.1% |
| Cambridge Investment Research Advisors, Inc. | 12,252 | 0 | $85 | +$6 | 0.0% |
| JPMORGAN CHASE & CO | 11 | 0 | $76 | +$5 | 0.0% |
| Capital Advisors, Ltd. LLC | 48 | 0 | $0 | $0 | 0.0% |
Sold Out(3)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0 | -19,811 | $0 | -$128.3K | — |
| Royal Bank of Canada | 0 | -15,354 | $0 | -$123.0K | — |
| CITADEL ADVISORS LLC | 0 | -16,326 | $0 | -$105.7K | — |
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 % |
|---|---|---|---|---|
| BATTERY MANAGEMENT CORP. | 2,421,673 | $16.7M | 0 | 0.0% |
| NEA Management Company, LLC | 1,713,720 | $11.8M | 0 | 0.0% |
| VANGUARD GROUP INC | 334,605 | $2.3M | +1,347 | 0.4% |
| TOCQUEVILLE ASSET MANAGEMENT L.P. | 319,674 | $2.2M | 0 | 0.0% |
| MORGAN STANLEY | 229,659 | $1.6M | +40,059 | 21.1% |
| RENAISSANCE TECHNOLOGIES LLC | 154,839 | $1.1M | -12,422 | -7.4% |
| BlackRock, Inc. | 122,771 | $848.3K | +861 | 0.7% |
| Mink Brook Asset Management LLC | 80,305 | $554.9K | +80,305 | — |
| GEODE CAPITAL MANAGEMENT, LLC | 75,819 | $524.0K | +1,410 | 1.9% |
| NORTHERN TRUST CORP | 46,146 | $318.9K | -288 | -0.6% |
| JANE STREET GROUP, LLC | 36,100 | $249.5K | +36,100 | — |
| HighTower Advisors, LLC | 35,158 | $242.9K | 0 | 0.0% |
| Bank of New York Mellon Corp | 26,749 | $184.8K | 0 | 0.0% |
| STATE STREET CORP | 26,203 | $181.1K | 0 | 0.0% |
| DIMENSIONAL FUND ADVISORS LP | 25,354 | $174.9K | +1,652 | 7.0% |
| BANK OF AMERICA CORP /DE/ | 21,985 | $151.9K | +208 | 0.9% |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 18,249 | $126.1K | +18,249 | — |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | 13,031 | $90.0K | -1,436 | -9.9% |
| Mesirow Financial Investment Management, Inc. | 10,300 | $71.2K | -1,700 | -14.2% |
| MILLENNIUM MANAGEMENT LLC | 10,203 | $70.5K | -2,432 | -19.2% |
New & Closed Positions this quarter
Closed Positions
3 managers exited
Top five by prior-quarter value
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$128.3K
- Royal Bank of Canada$123.0K
- CITADEL ADVISORS LLC$105.7K
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 CSBR 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.