New Positions
6 managers initiated
Top five by reported value
- CITADEL ADVISORS LLC$171.2K
- ADAR1 Capital Management, LLC$132.0K
- KESTRA PRIVATE WEALTH SERVICES, LLC$85.3K
- XTX Topco Ltd$31.4K
- Virtu Financial LLC$18
Chemomab Therapeutics Ltd NASDAQ NMS - GLOBAL MARKET:CMMB
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 new4 added4 reduced2 exited
Total Institutional Holders
14
as of 2025-12-31
Top Holder
CITADEL ADVISORS LLC
$171.2K
Largest QoQ Increase
CITADEL ADVISORS LLC
+103,781 sh
Largest QoQ Decrease
SPHERA FUNDS MANAGEMENT LTD.
-179,425 sh
New Positions(6)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| CITADEL ADVISORS LLC | 103,781 | +103,781 | $171.2K | +$171.2K | — |
| ADAR1 Capital Management, LLC | 80,000 | +80,000 | $132.0K | +$132.0K | — |
| KESTRA PRIVATE WEALTH SERVICES, LLC | 51,710 | +51,710 | $85.3K | +$85.3K | — |
| XTX Topco Ltd | 19,013 | +19,013 | $31.4K | +$31.4K | — |
| Virtu Financial LLC | 10,933 | +10,933 | $18 | +$18 | — |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 2 | +2 | $3 | +$3 | — |
Added To(4)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| RHUMBLINE ADVISERS | 17,856 | +8,351 | $29.5K | +$4.5K | 87.8% |
| UBS Group AG | 2,253 | +2,154 | $3.7K | +$3.5K | 2175.8% |
| GAMMA Investing LLC | 2,514 | +1,847 | $4.1K | +$2.4K | 276.9% |
| BNP PARIBAS ARBITRAGE, SNC | 8,125 | +2,375 | $13.4K | -$1.7K | 41.3% |
Reduced(4)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| MORGAN STANLEY | 3,775 | -86,290 | $6.2K | -$230.6K | -95.8% |
| Ikarian Capital, LLC | 51,793 | -1,469 | $85.5K | -$54.6K | -2.8% |
| JANE STREET GROUP, LLC | 15,598 | -5,913 | $25.7K | -$30.8K | -27.5% |
| SBI Securities Co., Ltd. | 26 | 0 | $43 | -$25 | 0.0% |
Sold Out(2)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| SPHERA FUNDS MANAGEMENT LTD. | 0 | -179,425 | $0 | -$471.9K | — |
| Stonepine Capital Management, LLC | 0 | -30,000 | $0 | -$78.9K | — |
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 % |
|---|---|---|---|---|
| CITADEL ADVISORS LLC | 103,781 | $171.2K | +103,781 | — |
| ADAR1 Capital Management, LLC | 80,000 | $132.0K | +80,000 | — |
| Ikarian Capital, LLC | 51,793 | $85.5K | -1,469 | -2.8% |
| KESTRA PRIVATE WEALTH SERVICES, LLC | 51,710 | $85.3K | +51,710 | — |
| XTX Topco Ltd | 19,013 | $31.4K | +19,013 | — |
| RHUMBLINE ADVISERS | 17,856 | $29.5K | +8,351 | 87.8% |
| JANE STREET GROUP, LLC | 15,598 | $25.7K | -5,913 | -27.5% |
| BNP PARIBAS ARBITRAGE, SNC | 8,125 | $13.4K | +2,375 | 41.3% |
| MORGAN STANLEY | 3,775 | $6.2K | -86,290 | -95.8% |
| GAMMA Investing LLC | 2,514 | $4.1K | +1,847 | 276.9% |
| UBS Group AG | 2,253 | $3.7K | +2,154 | 2175.8% |
| SBI Securities Co., Ltd. | 26 | $43 | 0 | 0.0% |
| Virtu Financial LLC | 10,933 | $18 | +10,933 | — |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 2 | $3 | +2 | — |
New & Closed Positions this quarter
Closed Positions
2 managers exited
Top five by prior-quarter value
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 CMMB 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.