ACKERMAN JOEL — SEC Form 4 filings
SEC reporting owner CIK 1220630. 16 Form 4 filings on record with FilingPulse; latest filed 2026-05-11.
Transaction summary — filings shown
Covers all 16 filings on record, filed 2024-01-05 to 2026-05-11. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 3 legs across 2 filings — 120,240 shares, $20,550,899 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 44.
- Largest priced transaction: sale of 64,029 shares @ $155.06 ($9,928,586) in DAVITA INC., filed 2024-08-29.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| DAVITA INC. (DVA) | CFO and Treasurer | 11 | — | 3 legs · 120,240 sh · $20,550,899 | 33 |
| CHAMPIONS ONCOLOGY, INC. (CSBR) | Director | 5 | — | — | 11 |
Form 4 filings — ACKERMAN JOEL
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-05-11 | 4 | DAVITA INC. (DVA) | Sale (S): 51,471 @ $192.10 | EDGAR |
| 2026-03-17 | 4 | DAVITA INC. (DVA) | Grant/award (A): 5,706 @ $0 · Tax withholding (F): 3,362 @ $150.72 · Tax withholding (F): 33,693 @ $150.72 · Tax withholding (F): 5,765 @ $150.72 · Grant/award (A): 15,427 (derivative) @ $0 | EDGAR |
| 2026-03-12 | 4 | DAVITA INC. (DVA) | Grant/award (A): 6,585 @ $0 · Grant/award (A): 65,997 @ $0 | EDGAR |
| 2026-02-09 | 4 | DAVITA INC. (DVA) | Option exercise (M): 44,065 @ $108.93 · Disposition to issuer (D): 32,168 @ $149.22 · Tax withholding (F): 5,100 @ $149.22 · Option exercise (M): 44,065 (derivative) @ $0 | EDGAR |
| 2025-11-07 | 4 | CHAMPIONS ONCOLOGY, INC. (CSBR) | Grant/award (A): 21,216 (derivative) @ $6.80 | EDGAR |
| 2025-11-06 | 4 | CHAMPIONS ONCOLOGY, INC. (CSBR) | Option exercise (M): 94,405 @ $2.10 · Option exercise (M): 94,405 (derivative) @ $2.10 | EDGAR |
| 2025-03-18 | 4 | DAVITA INC. (DVA) | Grant/award (A): 5,995 @ $0 · Tax withholding (F): 3,093 @ $143.45 · Tax withholding (F): 3,331 @ $143.45 · Grant/award (A): 16,597 (derivative) @ $0 | EDGAR |
| 2025-03-14 | 4 | DAVITA INC. (DVA) | Grant/award (A): 7,394 @ $0 · Grant/award (A): 7,221 @ $0 | EDGAR |
| 2024-11-18 | 4 | CHAMPIONS ONCOLOGY, INC. (CSBR) | Grant/award (A): 43,190 (derivative) @ $4.64 | EDGAR |
| 2024-11-01 | 4 | CHAMPIONS ONCOLOGY, INC. (CSBR) | Option exercise (M): 88,470 @ $2.10 · Option exercise (M): 16,667 @ $5.43 · Option exercise (M): 88,470 (derivative) @ $2.10 · Option exercise (M): 16,667 (derivative) @ $5.43 | EDGAR |
| 2024-09-17 | 4 | DAVITA INC. (DVA) | Option exercise (M): 78,999 @ $75.95 · Disposition to issuer (D): 36,684 @ $163.56 · Tax withholding (F): 21,602 @ $163.56 · Option exercise (M): 78,999 (derivative) @ $0 | EDGAR |
| 2024-08-29 | 4 | DAVITA INC. (DVA) | Sale (S): 64,029 @ $155.06 · Sale (S): 4,740 @ $155.02 | EDGAR |
| 2024-03-18 | 4 | DAVITA INC. (DVA) | Grant/award (A): 14,349 @ $0 · Grant/award (A): 1,445 @ $0 · Grant/award (A): 10,977 @ $0 · Tax withholding (F): 8,064 @ $136 | EDGAR |
| 2024-03-08 | 4 | DAVITA INC. (DVA) | Option exercise (M): 55,000 @ $52.41 · Disposition to issuer (D): 21,408 @ $134.65 · Tax withholding (F): 17,149 @ $134.65 · Option exercise (M): 55,000 (derivative) @ $0 | EDGAR |
| 2024-02-23 | 4 | DAVITA INC. (DVA) | Option exercise (M): 55,000 @ $52.41 · Disposition to issuer (D): 23,436 @ $123 · Tax withholding (F): 14,930 @ $123 · Option exercise (M): 55,000 (derivative) @ $0 | EDGAR |
| 2024-01-05 | 4 | CHAMPIONS ONCOLOGY, INC. (CSBR) | Option exercise (M): 114,552 @ $2.10 · Option exercise (M): 100,000 (derivative) @ $2.10 · Option exercise (M): 14,552 (derivative) @ $2.10 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-04 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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