Champions Oncology CSBR Insider Ownership

NASDAQ CSBR
$4.79 +0.03 (+0.63%)
At close: Nov 6, 2026 · 4:00 PM EST

Insider Holdings by Owner

2.99Mn Shares
Joel Ackerman1.13Mn37.7%
Ronnie Morris858.88K28.8%
David Sidransky767.04K25.7%
Daniel Newman Mendelson198.63K6.7%
Scott R Tobin30.00K1.0%
Other insiders (1)5.72K0.2%

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
14.79%
▼-0.034% pp QoQ
Shares Held by Insiders
2.06Mn
filed for Sep 2026
■0.00% QoQ
Shares Outstanding
13.92Mn
13,918,569 shares
Direct Holdings
2.06Mn
Indirect: 0
Net Open-Market Trades
0
no open-market trades in Sep 2026
Insiders Holding Shares
6
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Open-Market Insider Trades

Bought Sold
Latest quarter —
Net over range —
Net-buying quarters —

Insider Ownership Summary

Updated

In the last 12 months, insiders at Champions Oncology neither bought nor sold shares on the open market.

Form 4 Holdings

Insiders Holding CSBR

Insiders 6
Shares held 2.99Mn
Of outstanding 21.46%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Joel Ackerman Chief Executive Officer 1,126,333 0 1,126,333 37.7% 15 Oct, 2026
2 Ronnie Morris Ceo 858,878 0 858,878 28.8% 21 Mar, 2023
3 David Sidransky Director 767,043 0 767,043 25.7% 12 Oct, 2022
4 Daniel Newman Mendelson Director 198,625 0 198,625 6.7% 16 Jan, 2024
5 Scott R Tobin Director 30,000 0 30,000 1.0% 12 Oct, 2022
6 Philip P. Breitfeld Director 5,717 0 5,717 0.2% 02 Apr, 2025

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

360 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
15 Oct, 2026 Joel Ackerman Director Acquired M 69,794 $1.60 $111.67K 1,126,333 Direct
15 Oct, 2026 Joel Ackerman Director Disposed M 69,794 $1.60 $111.67K 0 Direct
05 Nov, 2025 David Sidransky Director Acquired A 21,216 $6.80 $144.27K 21,216 Direct
05 Nov, 2025 Daniel Newman Mendelson Director Acquired A 13,790 $6.80 $93.77K 13,790 Direct
05 Nov, 2025 Scott R Tobin Director, TenPercentOwner Acquired A 25,460 $6.80 $173.13K 25,460 Direct
05 Nov, 2025 Joel Ackerman Director Acquired A 21,216 $6.80 $144.27K 21,216 Direct
05 Nov, 2025 Philip P. Breitfeld Director Acquired A 13,790 $6.80 $93.77K 13,790 Direct
30 Oct, 2025 Joel Ackerman Director Acquired M 94,405 $2.10 $198.25K 1,056,539 Direct
30 Oct, 2025 Joel Ackerman Director Disposed M 94,405 $2.10 $198.25K 0 Direct
25 Mar, 2025 Philip P. Breitfeld Director Disposed J 4,150 $0.00 $0 5,717 Direct
12 Nov, 2024 Daniel Newman Mendelson Director Acquired A 21,590 $4.64 $100.18K 21,590 Direct
12 Nov, 2024 Philip P. Breitfeld Director Acquired A 18,715 $4.64 $86.84K 18,715 Direct
12 Nov, 2024 Scott R Tobin Director, TenPercentOwner Acquired A 34,550 $4.64 $160.31K 34,550 Direct
12 Nov, 2024 Joel Ackerman Director Acquired A 43,190 $4.64 $200.40K 43,190 Direct
12 Nov, 2024 David Sidransky Director Acquired A 21,880 $4.64 $101.52K 21,880 Direct
31 Oct, 2024 Joel Ackerman Director Acquired M 88,470 $2.10 $185.79K 945,467 Direct
31 Oct, 2024 Joel Ackerman Director Acquired M 16,667 $5.43 $90.50K 962,134 Direct
31 Oct, 2024 Joel Ackerman Director Disposed M 88,470 $2.10 $185.79K 0 Direct
31 Oct, 2024 Joel Ackerman Director Disposed M 16,667 $5.43 $90.50K 0 Direct
12 Jan, 2024 Daniel Newman Mendelson Director Acquired P 1,000 $6.50 $6.50K 198,625 Direct