CSBR (Champions Oncology, Inc.)

Insider Trading Activity

Every open-market purchase and sale reported by CSBR officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.

Form 4 Filings
50
most recent
Open-Market Buys
25
code P
Sales
0
code S
Reporting Insiders
10
current holders
CSBR — Recent Form 4 Transactions (latest 2026-01-30)
FiledInsiderRole TypeSharesValue
2026-01-30 Robert Lawrence Brainin CEO A
2026-01-30 Robert Lawrence Brainin Director A
2025-11-07 JOEL ACKERMAN Director A
2025-11-07 SCOTT R TOBIN Director A
2025-11-07 Philip P. Breitfeld Director A
2025-11-07 Daniel Newman Mendelson Director A
2025-11-07 DAVID SIDRANSKY Director A
2025-11-06 JOEL ACKERMAN Director M
2025-04-02 Philip P. Breitfeld Director J
2024-11-18 DAVID SIDRANSKY Director A
2024-11-18 JOEL ACKERMAN Director A
2024-11-18 Daniel Newman Mendelson Director A
2024-11-18 SCOTT R TOBIN Director A
2024-11-18 Philip P. Breitfeld Director A
2024-11-01 JOEL ACKERMAN Director M
2024-04-01 Brady Davis President A
2024-01-16 Daniel Newman Mendelson Director Buy
2024-01-12 Daniel Newman Mendelson Director Buy
2024-01-11 Daniel Newman Mendelson Director Buy
2024-01-10 Daniel Newman Mendelson Director Buy
2024-01-09 Daniel Newman Mendelson Director Buy
2024-01-08 Daniel Newman Mendelson Director Buy
2024-01-08 Daniel Newman Mendelson Director Buy
2024-01-05 JOEL ACKERMAN Director M
2024-01-04 Daniel Newman Mendelson Director Buy
2023-12-26 Daniel Newman Mendelson Director Buy
2023-12-21 Daniel Newman Mendelson Director Buy
2023-12-20 Daniel Newman Mendelson Director Buy
2023-11-07 Philip P. Breitfeld Director A
2023-11-07 SCOTT R TOBIN Director A
2023-11-07 DAVID SIDRANSKY Director A
2023-11-07 Daniel Newman Mendelson Director A
2023-11-07 JOEL ACKERMAN Director A
2023-10-16 Daniel Newman Mendelson Director Buy
2023-10-16 Daniel Newman Mendelson Director Buy
2023-10-16 Daniel Newman Mendelson Director Buy
2023-10-13 Daniel Newman Mendelson Director Buy
2023-10-11 Daniel Newman Mendelson Director Buy
2023-10-10 Daniel Newman Mendelson Director Buy
2023-10-06 Daniel Newman Mendelson Director Buy
2023-10-04 Daniel Newman Mendelson Director Buy
2023-10-04 Daniel Newman Mendelson Director Buy
2023-09-27 Daniel Newman Mendelson Director Buy
2023-09-25 Daniel Newman Mendelson Director Buy
2023-09-25 Daniel Newman Mendelson Director Buy
2023-09-25 Daniel Newman Mendelson Director Buy
2023-09-25 Daniel Newman Mendelson Director Buy
2023-08-17 Daniel Newman Mendelson Director A
2023-08-17 JOEL ACKERMAN Director A
2023-08-17 Philip P. Breitfeld Director A
CSBR — Current Insider Holders
InsiderRole Shares HeldValue
10%+ Owner 2,421,673
10%+ Owner 2,011,882
10%+ Owner 1,713,720
Director 1,056,539
CEO 858,878
Director 770,605
Director 198,625
Director 80,147
Director 30,000
Director 5,717
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the CSBR quote page; the site-wide leaderboard is on the insider transactions hub.