MarketPeel
Insider Trading Intelligence
Pricing
…
JA

Joel Ackerman

CSBR
DIRECTOR · CHAMPIONS ONCOLOGY, INC. · CIK 0001220630
FILING MIX · LIFETIME48%/52%
BUYS
46
SELLS
50
TOTAL VALUE
$122.43M
COMPANIES
2
ACTIVE SINCE
Mar 2020
HOLDINGS NOW
153,650
AVG SELL PX
$83.11
TRADE KIND
SHOWING 96 / 96
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
4 backtested trades · 8 horizons · 7 pending
Forward-return performance of every backtestable P/S trade by Joel Ackerman, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d4+50.00%-0.58%-0.20%-0.39%-0.14%—
14d4+25.00%+0.71%-1.13%+1.46%+1.44%—
30d4+25.00%+2.61%+2.06%+0.55%+0.78%—
60d4(1 pending)+33.33%-2.48%+1.71%-4.19%-2.10%—
90d4(1 pending)+33.33%-0.66%+6.73%-7.39%+1.11%—
180d4(1 pending)+100.00%-10.65%+5.97%-16.62%-15.30%—
1y4(1 pending)+100.00%-18.92%+9.50%-28.42%-28.76%—
2y4(3 pending)+100.00%-16.38%+4.26%-20.64%-20.64%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
CSBR · 21,216 shares · as of Nov 5, 2025
0365,149730,2981,095,4461,460,59520212022202320242025SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 46 buys / 50 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
DVA
DAVITA INC.
SALE
CFO and Treasurer
51,471$192.10$9.89M132,434May 7, 2026May 11, 2026 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasurer
3,362$150.72$506.7K223,363Mar 15, 2026Mar 17, 2026 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasurer
5,765$150.72$868.9K183,905Mar 15, 2026Mar 17, 2026 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
15,427——15,427Mar 15, 2026Mar 17, 2026 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasurer
33,693$150.72$5.08M189,670Mar 15, 2026Mar 17, 2026 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
5,706——226,725Mar 15, 2026Mar 17, 2026 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
65,997——221,019Mar 10, 2026Mar 12, 2026 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
6,585——155,022Mar 10, 2026Mar 12, 2026 ↗View →
DVA
DAVITA INC.
PURCHASE
CFO and Treasuer
44,065$108.93$4.80M185,705Feb 6, 2026Feb 9, 2026 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
32,168$149.22$4.80M153,537Feb 6, 2026Feb 9, 2026 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
5,100$149.22$761.0K148,437Feb 6, 2026Feb 9, 2026 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
44,065——0Feb 6, 2026Feb 9, 2026 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
PURCHASEGRANT
Stock grant
21,216$6.80$144.3K21,216Nov 5, 2025Nov 7, 2025 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
SALE
94,405$2.10$198.3K0Oct 30, 2025Oct 30, 2025 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
PURCHASE
94,405$2.10$198.3K1,056,539Oct 30, 2025Oct 30, 2025 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
3,331$143.45$477.8K141,640Mar 15, 2025Mar 18, 2025 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
3,093$143.45$443.7K144,971Mar 15, 2025Mar 18, 2025 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
16,597——16,597Mar 15, 2025Mar 18, 2025 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
5,995——148,064Mar 15, 2025Mar 18, 2025 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
7,221——142,069Mar 12, 2025Mar 14, 2025 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
7,394——134,848Mar 12, 2025Mar 14, 2025 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
PURCHASEGRANT
Stock grant
43,190$4.64$200.4K43,190Nov 12, 2024Nov 18, 2024 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
PURCHASE
16,667$5.43$90.5K962,134Oct 31, 2024Nov 1, 2024 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
PURCHASE
88,470$2.10$185.8K945,467Oct 31, 2024Nov 1, 2024 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
SALE
16,667$5.43$90.5K0Oct 31, 2024Nov 1, 2024 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
SALE
88,470$2.10$185.8K0Oct 31, 2024Nov 1, 2024 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
21,602$163.56$3.53M127,454Sep 16, 2024Sep 17, 2024 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
36,684$163.56$6.00M149,056Sep 16, 2024Sep 17, 2024 ↗View →
DVA
DAVITA INC.
PURCHASE
CFO and Treasuer
78,999$75.95$6.00M185,740Sep 16, 2024Sep 17, 2024 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
78,999——0Sep 16, 2024Sep 17, 2024 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
4,740$155.02$734.8K106,741Aug 28, 2024Aug 29, 2024 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
64,029$155.06$9.93M111,481Aug 27, 2024Aug 29, 2024 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
10,977——183,574Mar 15, 2024Mar 18, 2024 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
8,064$136.00$1.10M175,510Mar 15, 2024Mar 18, 2024 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
1,445——172,597Mar 14, 2024Mar 18, 2024 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
14,349——171,152Mar 14, 2024Mar 18, 2024 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
55,000——0Mar 6, 2024Mar 8, 2024 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
21,408$134.65$2.88M173,952Mar 6, 2024Mar 8, 2024 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
17,149$134.65$2.31M156,803Mar 6, 2024Mar 8, 2024 ↗View →
DVA
DAVITA INC.
PURCHASE
CFO and Treasuer
55,000$52.41$2.88M195,360Mar 6, 2024Mar 8, 2024 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
14,930$123.00$1.84M140,360Feb 21, 2024Feb 23, 2024 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
55,000——55,000Feb 21, 2024Feb 23, 2024 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
23,436$123.00$2.88M155,290Feb 21, 2024Feb 23, 2024 ↗View →
DVA
DAVITA INC.
PURCHASE
CFO and Treasuer
55,000$52.41$2.88M178,726Feb 21, 2024Feb 23, 2024 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
PURCHASEGRANT
Stock grant
35,750$5.51$197.0K35,750Nov 3, 2023Nov 7, 2023 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
SALE
100,000$2.10$210.0K0Oct 17, 2023Jan 5, 2024 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
SALE
14,552$2.10$30.6K0Oct 17, 2023Jan 5, 2024 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
PURCHASE
114,552$2.10$240.6K856,997Oct 17, 2023Jan 5, 2024 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
7,625$96.86$738.6K136,587May 15, 2023May 17, 2023 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
12,861$96.86$1.25M123,726May 15, 2023May 17, 2023 ↗View →
DVA
DAVITA INC.
PURCHASE
CFO and Treasuer
56,306$66.29$3.73M191,097May 10, 2023May 12, 2023 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
37,059$100.72$3.73M154,038May 10, 2023May 12, 2023 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
9,826$100.72$989.7K144,212May 10, 2023May 12, 2023 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
56,306——0May 10, 2023May 12, 2023 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
2,790——134,791Apr 4, 2023Apr 6, 2023 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
709$76.04$53.9K132,001Mar 15, 2023Mar 17, 2023 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
4,260$76.04$323.9K132,710Mar 15, 2023Mar 17, 2023 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
23,672——136,970Mar 15, 2023Mar 17, 2023 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
1,387——113,298Mar 9, 2023Mar 13, 2023 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
8,343——111,911Feb 23, 2023Feb 27, 2023 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
22,400——103,568Feb 23, 2023Feb 27, 2023 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
PURCHASEGRANT
Stock grant
26,500$7.00$185.5K26,500Nov 1, 2022Aug 17, 2023 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
PURCHASE
16,667$3.21$53.5K1,460,595Oct 19, 2022Oct 19, 2022 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
PURCHASE
16,667——0Oct 19, 2022Oct 19, 2022 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
9,414$100.05$941.9K105,749May 15, 2022May 17, 2022 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
7,624$100.05$762.8K81,168May 15, 2022May 17, 2022 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
14,082$100.05$1.41M88,792May 15, 2022May 17, 2022 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
2,875$100.05$287.6K102,874May 15, 2022May 17, 2022 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
28,385——115,163Apr 19, 2022Apr 21, 2022 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
18,438——86,778Apr 19, 2022Apr 21, 2022 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
43,388——43,388Mar 15, 2022Mar 17, 2022 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
PURCHASEGRANT
Stock grant
18,564$10.10$187.5K18,564Nov 5, 2021Nov 9, 2021 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
75,093$133.17$10.00M105,566Aug 9, 2021Aug 11, 2021 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
145,159——0Aug 9, 2021Aug 11, 2021 ↗View →
DVA
DAVITA INC.
PURCHASE
CFO and Treasuer
145,159$68.89$10.00M180,659Aug 9, 2021Aug 11, 2021 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
37,226$133.17$4.96M68,340Aug 9, 2021Aug 11, 2021 ↗View →
DVA
DAVITA INC.
SALE
CFO & Treasurer
37,760$131.36$4.96M35,500Aug 5, 2021Aug 6, 2021 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
712$125.41$89.3K96,887May 15, 2021May 18, 2021 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
1,419$125.41$178.0K81,532May 15, 2021May 18, 2021 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
11,180$125.41$1.40M85,707May 15, 2021May 18, 2021 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
8,272$125.41$1.04M73,260May 15, 2021May 18, 2021 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
2,756$125.41$345.6K82,951May 15, 2021May 18, 2021 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
2,899——97,599Apr 19, 2021Apr 21, 2021 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
1,456——94,700Apr 19, 2021Apr 21, 2021 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
44,065——44,065Mar 15, 2021Mar 17, 2021 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
16,894——93,244Feb 25, 2021Mar 1, 2021 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
22,832——76,350Feb 25, 2021Mar 1, 2021 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
4,890$115.36$564.1K53,518Dec 19, 2020Dec 21, 2020 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
PURCHASEGRANT
Stock grant
16,667$11.96$199.3K16,667Dec 8, 2020Dec 8, 2020 ↗View →
DVA
DAVITA INC.
SALE
CFO and Treasuer
425$79.25$33.7K58,408May 15, 2020May 19, 2020 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
1,116——58,833May 15, 2020May 19, 2020 ↗View →
DVA
DAVITA INC.
PURCHASEGRANT
Stock grant
78,999——78,999Mar 15, 2020Mar 17, 2020 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
PURCHASE
2,708$4.80$13.0K1,443,928Mar 3, 2020Mar 31, 2020 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
PURCHASE
124,232$5.76$715.6K1,441,220Mar 3, 2020Mar 31, 2020 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
SALE
2,708$4.80$13.0K0Mar 3, 2020Mar 31, 2020 ↗View →
CSBR
CHAMPIONS ONCOLOGY, INC.
SALE
124,232$5.76$715.6K0Mar 3, 2020Mar 31, 2020 ↗View →
Other insiders · CSBR
Loading peer insiders…
About this filer
CIK 0001220630
ROLE
Director
PRIMARY
CSBR
COMPANIES
2
ACTIVE SINCE
Mar 2020
MARKETPEEL · /INSIDER/0001220630DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

The morning brief, before the bell.

One short email. Insider buys, congressional trades, and plain-English analysis.

Feedback