Joel Ackerman

CIK: 0001220630

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)1 (4.2%)

Position reduction

Option Exercises (M)6 (25.0%)

Derivative conversions

Awards (A)8 (33.3%)

Compensation grants

Other (G, F, J, C, D, …)9 (37.5%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

CSBR

CHAMPIONS ONCOLOGY, INC.

Director

DVA

DAVITA INC.

Officer

Discretionary Trading P&L

Holdings

Transaction History (24 total)

CSBR
CHAMPIONS ONCOLOGY, INC.
Oct 15, 2026
Exercise(M)
Direct
69.8K shares at avg. $1.60$112K
DVA
DAVITA INC.
May 7, 2026
Sale(S)
Direct
51.5K shares at avg. $192.10$9.9M
DVA
DAVITA INC.
Mar 15, 2026
Award(A)
Direct
5.7K shares-
DVA
DAVITA INC.
Mar 15, 2026
Tax Payment(F)
Direct
5.8K shares at avg. $150.72$869K
DVA
DAVITA INC.
Mar 15, 2026
Tax Payment(F)
Direct
33.7K shares at avg. $150.72$5.1M
DVA
DAVITA INC.
Mar 15, 2026
Tax Payment(F)
Direct
3.4K shares at avg. $150.72$507K
DVA
DAVITA INC.
Mar 10, 2026
Award(A)
Direct
66K shares-
DVA
DAVITA INC.
Mar 10, 2026
Award(A)
Direct
6.6K shares-
DVA
DAVITA INC.
Feb 6, 2026
Exercise(M)
Direct
44.1K shares at avg. $108.93$4.8M
DVA
DAVITA INC.
Feb 6, 2026
Disposition(D)
Direct
32.2K shares at avg. $149.22$4.8M
DVA
DAVITA INC.
Feb 6, 2026
Tax Payment(F)
Direct
5.1K shares at avg. $149.22$761K
CSBR
CHAMPIONS ONCOLOGY, INC.
Nov 5, 2025
Award(A)
Option to purchase Common Stock
Direct
21.2K shares at avg. $6.80-
CSBR
CHAMPIONS ONCOLOGY, INC.
Oct 30, 2025
Exercise(M)
Direct
94.4K shares at avg. $2.10$198K
DVA
DAVITA INC.
Mar 15, 2025
Award(A)
Direct
6K shares-
DVA
DAVITA INC.
Mar 15, 2025
Tax Payment(F)
Direct
3.3K shares at avg. $143.45$478K
DVA
DAVITA INC.
Mar 15, 2025
Tax Payment(F)
Direct
3.1K shares at avg. $143.45$444K
DVA
DAVITA INC.
Mar 12, 2025
Award(A)
Direct
7.4K shares-
DVA
DAVITA INC.
Mar 12, 2025
Award(A)
Direct
7.2K shares-
CSBR
CHAMPIONS ONCOLOGY, INC.
Nov 12, 2024
Award(A)
Option to purchase Common Stock
Direct
43.2K shares at avg. $4.64-
CSBR
CHAMPIONS ONCOLOGY, INC.
Oct 31, 2024
Exercise(M)
Direct
88.5K shares at avg. $2.10$186K
CSBR
CHAMPIONS ONCOLOGY, INC.
Oct 31, 2024
Exercise(M)
Direct
16.7K shares at avg. $5.43$91K
DVA
DAVITA INC.
Sep 16, 2024
Tax Payment(F)
Direct
21.6K shares at avg. $163.56$3.5M
DVA
DAVITA INC.
Sep 16, 2024
Disposition(D)
Direct
36.7K shares at avg. $163.56$6.0M
DVA
DAVITA INC.
Sep 16, 2024
Exercise(M)
Direct
79K shares at avg. $75.95$6.0M

		Type	Shares	Price		Ownership
Oct 15, 2026	CSBR CHAMPIONS ONCOLOGY, INC.	Exercise(M)	69,794	$1.60	$111,670	Direct
May 7, 2026	DVA DAVITA INC.	Sale(S)	51,471	$192.10	$9,887,528	Direct
Mar 15, 2026	DVA DAVITA INC.	Award(A)	5,706	-	$0	Direct
Mar 15, 2026	DVA DAVITA INC.	Tax Payment(F)	5,765	$150.72	$868,901	Direct
Mar 15, 2026	DVA DAVITA INC.	Tax Payment(F)	33,693	$150.72	$5,078,209	Direct
Mar 15, 2026	DVA DAVITA INC.	Tax Payment(F)	3,362	$150.72	$506,721	Direct
Mar 10, 2026	DVA DAVITA INC.	Award(A)	65,997	-	$0	Direct
Mar 10, 2026	DVA DAVITA INC.	Award(A)	6,585	-	$0	Direct
Feb 6, 2026	DVA DAVITA INC.	Exercise(M)	44,065	$108.93	$4,800,000	Direct
Feb 6, 2026	DVA DAVITA INC.	Disposition(D)	32,168	$149.22	$4,800,109	Direct
Feb 6, 2026	DVA DAVITA INC.	Tax Payment(F)	5,100	$149.22	$761,022	Direct
Nov 5, 2025	CSBR CHAMPIONS ONCOLOGY, INC.	Award(A) Option to purchase Common Stock	21,216	$6.80	-	Direct
Oct 30, 2025	CSBR CHAMPIONS ONCOLOGY, INC.	Exercise(M)	94,405	$2.10	$198,251	Direct
Mar 15, 2025	DVA DAVITA INC.	Award(A)	5,995	-	-	Direct
Mar 15, 2025	DVA DAVITA INC.	Tax Payment(F)	3,331	$143.45	$477,832	Direct
Mar 15, 2025	DVA DAVITA INC.	Tax Payment(F)	3,093	$143.45	$443,691	Direct
Mar 12, 2025	DVA DAVITA INC.	Award(A)	7,394	-	-	Direct
Mar 12, 2025	DVA DAVITA INC.	Award(A)	7,221	-	-	Direct
Nov 12, 2024	CSBR CHAMPIONS ONCOLOGY, INC.	Award(A) Option to purchase Common Stock	43,190	$4.64	-	Direct
Oct 31, 2024	CSBR CHAMPIONS ONCOLOGY, INC.	Exercise(M)	88,470	$2.10	$185,787	Direct
Oct 31, 2024	CSBR CHAMPIONS ONCOLOGY, INC.	Exercise(M)	16,667	$5.43	$90,502	Direct
Sep 16, 2024	DVA DAVITA INC.	Tax Payment(F)	21,602	$163.56	$3,533,223	Direct
Sep 16, 2024	DVA DAVITA INC.	Disposition(D)	36,684	$163.56	$6,000,035	Direct
Sep 16, 2024	DVA DAVITA INC.	Exercise(M)	78,999	$75.95	$5,999,974	Direct

1-24 of 24 transactions

About ACKERMAN JOEL

ACKERMAN JOEL (SEC CIK 0001220630) files insider reports with the SEC as Director of CHAMPIONS ONCOLOGY, INC. (CSBR) and CFO and Treasurer of DAVITA INC. (DVA).

Signal8 holds 12 ownership filings by ACKERMAN JOEL, all Form 4s, filed between Sep 17, 2024 and Oct 16, 2026. Those filings report 24 transactions, from Sep 16, 2024 to Oct 15, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on ACKERMAN JOEL's filings is in HACKENSACK, NJ.

Recent filings by ACKERMAN JOEL

Oct 15, 2026: Option exercise of CSBR shares (Form 4, code M).
May 7, 2026: Open-market sale of DVA shares (Form 4, code S).
Mar 15, 2026: Grant or award of DVA shares (Form 4, code A).
Mar 15, 2026: Tax withholdings of DVA shares (3 lines, Form 4, code F).
Mar 10, 2026: Grants or awards of DVA shares (2 lines, Form 4, code A).

Other insiders filing for CHAMPIONS ONCOLOGY, INC. (CSBR)

How to read Form 4 transaction codes