Champions Oncology, Inc. (CSBR) Ownership
CSBR ownership summary
as of October 18, 2026- Institutions
- 48.7% of shares outstanding
- Insiders
- 26.33% of shares outstanding
- Shares outstanding
- 13.9M
- Float
- 6.1M shares available to trade
- Short interest
- 1.04% 71K shares short
- Days to cover
- 4.95 short interest up 3.6% vs prior month
- Institutions 48.71%
- Insiders 26.33%
- Other investors 24.96%
CSBR top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Battery Management Corp | 17.40% | 2.4M | $11.4M | — | June 30, 2026 |
| 2 | NEA Management Company, LLC | 12.31% | 1.7M | $8.1M | — | June 30, 2026 |
| 3 | Vanguard Capital Management, LLC | 2.17% | 301K | $1.4M | +1,833 (+0.6%) | June 30, 2026 |
| 4 | Tocqueville Asset Management L.P. | 2.12% | 296K | $1.4M | −24,016 (−7.5%) | June 30, 2026 |
| 5 | Morgan Stanley - Brokerage Accounts | 1.69% | 235K | $1.1M | −6,900 (−2.8%) | June 30, 2026 |
| 6 | Bank of America Corp | 1.54% | 214K | $1.0M | +192,225 (+880.4%) | June 30, 2026 |
| 7 | Renaissance Technologies Corp | 1.00% | 139K | $653,483 | −6,500 (−4.5%) | June 30, 2026 |
| 8 | BlackRock Inc | 0.93% | 130K | $610,286 | +5,948 (+4.8%) | June 30, 2026 |
| 9 | Mink Brook Asset Management LLC | 0.80% | 111K | $523,289 | — | June 30, 2026 |
| 10 | Geode Capital Management, LLC | 0.55% | 76K | $358,610 | −877 (−1.1%) | June 30, 2026 |
| 11 | HighTower Advisors, LLC | 0.30% | 42K | $196,935 | +6,743 (+19.2%) | June 30, 2026 |
| 12 | Vanguard Fiduciary Trust Co | 0.24% | 33K | $156,223 | +247 (+0.7%) | June 30, 2026 |
| 13 | Northern Trust Corp | 0.20% | 28K | $131,177 | −18,022 (−39.2%) | June 30, 2026 |
| 14 | State Street Corp | 0.19% | 26K | $123,154 | — | June 30, 2026 |
| 15 | CAMBRIDGE Invest RESEARCH ADVISORS, INC. | 0.18% | 25K | $115,169 | +12,252 (+100.0%) | June 30, 2026 |
| 16 | Bank of New York Mellon Corp | 0.16% | 22K | $101,586 | — | June 30, 2026 |
| 17 | Acadian Asset Management LLC | 0.15% | 21K | $96,458 | −800 (−3.8%) | June 30, 2026 |
| 18 | Citadel Advisors Llc | 0.13% | 18K | $85,986 | +18,295 (0.0%) | June 30, 2026 |
| 19 | Essex Investment Management Company, LLC | 0.13% | 18K | $85,639 | −28 (−0.2%) | June 30, 2026 |
| 20 | Mesirow Fin Investmt Mgmt Intl Equity | 0.11% | 16K | $74,260 | — | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 7 holders added 238K shares and 7 cut 57K.
CSBR top mutual fund and ETF holders
15 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 1.65% | 230K | $1.1M | — | August 31, 2026 |
| 2 | Fidelity Extended Market Index | 0.22% | 31K | $145,958 | −167 (−0.5%) | August 31, 2026 |
| 3 | iShares Micro-Cap ETF | 0.20% | 27K | $127,582 | −187 (−0.7%) | September 30, 2026 |
| 4 | Fidelity Total Market Index | 0.09% | 12K | $57,058 | — | August 31, 2026 |
| 5 | Fidelity Nasdaq Composite Index | 0.08% | 11K | $51,503 | — | August 31, 2026 |
| 6 | Fidelity Series Total Market Index | 0.07% | 9,232 | $43,390 | — | August 31, 2026 |
| 7 | Schwab Total Stock Market Index | 0.05% | 6,854 | $32,214 | — | August 31, 2026 |
| 8 | Vanguard MStar Inst Ttl StkMktIdxInstlPl | 0.05% | 6,527 | $30,677 | — | August 31, 2026 |
| 9 | Northern Small Cap Core I | 0.03% | 4,471 | $21,014 | −412 (−8.4%) | June 30, 2026 |
| 10 | Vanguard U.S. Eq Idx £ Acc | 0.01% | 2,093 | $9,837 | — | August 31, 2026 |
| 11 | Vanguard Balanced Index Inv | 0.01% | 2,080 | $9,776 | — | August 31, 2026 |
| 12 | 1290 VT Micro Cap K | 0.01% | 2,034 | $9,560 | — | August 31, 2026 |
| 13 | LVIP Dimensional US Core Equity 2 Std | <0.01% | 279 | $1,311 | −1,038 (−78.8%) | June 30, 2026 |
| 14 | JNL/DFA US Small Cap A | <0.01% | 149 | $700 | −766 (−83.7%) | June 30, 2026 |
| 15 | DFA US Vector Equity Class F | <0.01% | 79 | $371 | — | July 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
CSBR insider transactions
latest 14| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2024-01-12 | Daniel Newman Mendelson | Buy | $6.50 | 1,000 | $6,500 |
| 2024-01-10 | Daniel Newman Mendelson | Buy | $6.31 | 2,944 | $18,577 |
| 2024-01-08 | Daniel Newman Mendelson | Buy | $6.15 | 1,000 | $6,150 |
| 2024-01-05 | Daniel Newman Mendelson | Buy | $6.09 | 2,000 | $12,180 |
| 2024-01-03 | Daniel Newman Mendelson | Buy | $5.83 | 500 | $2,915 |
| 2023-12-21 | Daniel Newman Mendelson | Buy | $4.92 | 2,500 | $12,300 |
| 2023-12-19 | Daniel Newman Mendelson | Buy | $4.75 | 5,000 | $23,750 |
| 2023-10-10 | Daniel Newman Mendelson | Buy | $6.41 | 1,100 | $7,051 |
| 2023-10-05 | Daniel Newman Mendelson | Buy | $6.47 | 2,000 | $12,940 |
| 2023-10-03 | Daniel Newman Mendelson | Buy | $6.30 | 2,500 | $15,750 |
| 2023-09-29 | Daniel Newman Mendelson | Buy | $6.16 | 4,000 | $24,640 |
| 2023-09-26 | Daniel Newman Mendelson | Buy | $5.65 | 5,000 | $28,250 |
| 2023-09-21 | Daniel Newman Mendelson | Buy | $5.51 | 5,000 | $27,550 |
| 2023-09-19 | Daniel Newman Mendelson | Buy | $5.28 | 5,000 | $26,400 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
CSBR shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns CSBR
Institutional investors own 48.7% of Champions Oncology's shares and insiders 26.33%. The largest holder is Battery Management Corp with 17.40% of the shares (2.4M), as of June 30, 2026. Among the top 20 institutions, 7 added shares and 7 reduced their stake in the latest filings. Short interest is 1.04% of the float, or 4.95 days of average trading volume. The share count rose 159.4% since 2014.
Related: CSBR analyst forecast, CSBR key metrics. See the CSBR stock overview for the latest quote and news.
CSBR ownership FAQ
Who owns the most Champions Oncology stock?
The largest shareholders of Champions Oncology are Battery Management Corp (17.40%), NEA Management Company, LLC (12.31%), Vanguard Capital Management, LLC (2.17%), Tocqueville Asset Management L.P. (2.12%), Morgan Stanley - Brokerage Accounts (1.69%).
What percentage of Champions Oncology is owned by institutions?
Institutions hold 48.7% of Champions Oncology's shares outstanding; insiders hold 26.33%.
Which funds own Champions Oncology?
The largest fund holders of Champions Oncology are Vanguard MStar Total Stk Mkt Idx Invest (1.65%), Fidelity Extended Market Index (0.22%), iShares Micro-Cap ETF (0.20%), Fidelity Total Market Index (0.09%), Fidelity Nasdaq Composite Index (0.08%).
What is Champions Oncology's short interest?
71K shares of Champions Oncology were sold short, 1.04% of the float; at the average daily volume it would take 4.95 days to cover.
Are insiders buying or selling Champions Oncology?
Of the latest 14 reported insider transactions in Champions Oncology (since September 19, 2023), 14 were purchases and 0 were sales.
How many shares of Champions Oncology are outstanding?
Champions Oncology has 13.9M shares outstanding, of which 6.1M are in the public float.