CSBR · Insider trading · 13F holders · Congress trades
Champions Oncology, Inc. (CSBR)
Who is buying and selling CSBR: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 3
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
CSBR at a glance
- No open-market insider purchases or sales of CSBR were filed in the last 90 days.
- 3 13F filers hold CSBR among their 50 largest positions, worth $26.2M combined. The biggest bets by portfolio weight are NEA Management Company, LLC (0.7%) and Mink Brook Asset Management LLC (0.3%).
- No member of Congress has disclosed a trade in CSBR.
CSBR insider trading
No open-market insider purchases or sales of CSBR were filed in the last 90 days.
Who owns CSBR? Hedge funds and superinvestors
3 13F filers hold CSBR among their 50 largest positions, worth $26.2M combined. The biggest bets by portfolio weight are NEA Management Company, LLC (0.7%) and Mink Brook Asset Management LLC (0.3%).
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Battery Management Corp.Hedge fund | 4.0% | $14.9M | 2,421,673 | +0.0% shares | Q2 2026 |
| NEA Management Company, LLCHedge fund | 0.7% | $10.6M | 1,713,720 | +0.0% shares | Q2 2026 |
| Mink Brook Asset Management LLCHedge fund | 0.3% | $686K | 111,338 | +0.0% shares | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 3). Screen CSBR in the grand portfolio →
CSBR stock trades by members of Congress
No member of Congress has disclosed a trade in CSBR.
CSBR questions and answers
Are insiders buying CSBR stock?
No open-market insider purchases or sales of CSBR were filed in the last 90 days.
Which hedge funds own CSBR?
3 13F filers hold CSBR among their 50 largest positions, worth $26.2M combined. The biggest bets by portfolio weight are NEA Management Company, LLC (0.7%) and Mink Brook Asset Management LLC (0.3%).
Has Congress traded CSBR?
No member of Congress has disclosed a trade in CSBR.
Who is the largest holder of CSBR?
Among 13F filers, Battery Management Corp. reports the largest CSBR position, $14.9M (2,421,673 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is NEA Management Company, LLC's: 0.7% of its portfolio.
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