Champions Oncology
CSBR
25 hedge funds and large institutions have $33M invested in Champions Oncology in 2026 Q1 according to their latest regulatory filings, with 4 funds opening new positions, 5 increasing their positions, 6 reducing their positions, and 5 closing their positions.
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
0.13% less ownership
Funds ownership: 41.41% → 41.28% (-0.13%)
7% less funds holding
Funds holding: 27 → 25 (-2)
17% less repeat investments, than reductions
Existing positions increased: 5 | Existing positions reduced: 6
17% less capital invested
Capital invested by funds: $39.7M → $33M (-$6.78M)
20% less first-time investments, than exits
New positions opened: 4 | Existing positions closed: 5
100% less call options, than puts
Call options by funds: $0 | Put options by funds: $133K
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
MBAM
Mink Brook Asset Management
West Palm Beach,
Florida
|
+$197K |
| 2 |
Morgan Stanley
New York
|
+$80.3K |
| 3 |
MFIM
Mesirow Financial Investment Management
Chicago,
Illinois
|
+$34.9K |
| 4 |
Geode Capital Management
Boston,
Massachusetts
|
+$8.63K |
| 5 |
BlackRock
New York
|
+$7.17K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
GCP
GSA Capital Partners
London,
United Kingdom
|
-$145K |
| 2 |
OSAM
O'Shaughnessy Asset Management
Stamford,
Connecticut
|
-$90K |
| 3 |
Millennium Management
New York
|
-$70.5K |
| 4 |
Renaissance Technologies
New York
|
-$59.1K |
| 5 |
Acadian Asset Management
Boston,
Massachusetts
|
-$55.1K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
OSAM
26
O'Shaughnessy Asset Management
Stamford,
Connecticut
| – | -$90K | -13,031 | Closed |
|
|
27
Millennium Management
New York
| – | -$70.5K | -10,203 | Closed |
|
|
WT
28
Whittier Trust
South Pasadena,
California
| – | -$5.29K | -800 | Closed |
|
29
UBS Group
Zurich,
Switzerland
| – | -$1.31K | -190 | Closed |
|
CSBR Hedge Fund Activity: Q1 2026 in Review
25 of the 8,127 institutional investors tracked by Wall St. Rank reported a position in Champions Oncology (CSBR) for Q1 2026, worth a combined $33M — down 17% from $39.7M a quarter earlier.
Sellers outnumbered buyers: 5 funds closed out of CSBR and 4 opened new positions — a net loss of 1 holder — while 6 trimmed existing stakes and 5 added.
The largest buyer was Mink Brook Asset Management, adding an estimated $197K. The largest seller was GSA Capital Partners, exiting entirely with an estimated $145K sold.
- 25 institutional investors held Champions Oncology (CSBR) as of Q1 2026, down from 27 in Q4 2025.
- Funds reported $33M of Champions Oncology stock for Q1 2026, down 17% quarter-over-quarter.
- 4 funds opened new Champions Oncology positions in Q1 2026 and 5 closed out, a net change of -1 holder.
- The largest Champions Oncology buyer in Q1 2026 was Mink Brook Asset Management, an estimated $197K added.
- The largest Champions Oncology seller in Q1 2026 was GSA Capital Partners, an estimated $145K sold.
Based on aggregated 13F filings for Q1 2026.