Sibold William John — SEC Form 4 filings
SEC reporting owner CIK 1518611. 12 Form 4 filings on record with FilingPulse; latest filed 2026-09-11.
Transaction summary — filings shown
Covers all 12 filings on record, filed 2024-01-25 to 2026-09-11. 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): 42 legs across 9 filings — 42,565 shares, $18,857,138 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 13.
- Largest priced transaction: sale of 7,279 shares @ $445.63 ($3,243,741) in MADRIGAL PHARMACEUTICALS, INC., filed 2025-09-09.
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 |
|---|---|---|---|---|---|
| MADRIGAL PHARMACEUTICALS, INC. (MDGL) | President and CEO, Director | 12 | — | 42 legs · 42,565 sh · $18,857,138 | 13 |
Form 4 filings — Sibold William John
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-11 | 4 | MADRIGAL PHARMACEUTICALS, INC. (MDGL) | Sale (S): 131 @ $527.88 · Sale (S): 347 @ $529.27 · Sale (S): 522 @ $530.23 · Sale (S): 368 @ $531.99 · Sale (S): 512 @ $533.09 · Sale (S): 396 @ $534.20 · +18 more | EDGAR |
| 2026-07-20 | 4 | MADRIGAL PHARMACEUTICALS, INC. (MDGL) | Option exercise (M): 50,000 · Sale (S): 140 @ $542.75 · Sale (S): 110 @ $543.79 · Sale (S): 545 @ $544.71 · Sale (S): 275 @ $545.71 · Sale (S): 269 @ $547.08 · +6 more | EDGAR |
| 2026-03-06 | 4 | MADRIGAL PHARMACEUTICALS, INC. (MDGL) | Grant/award (A): 14,995 @ $0 · Sale (S): 1,663 @ $431.94 · Grant/award (A): 18,743 (derivative) @ $0 | EDGAR |
| 2026-01-26 | 4 | MADRIGAL PHARMACEUTICALS, INC. (MDGL) | Sale (S): 1,577 @ $492.42 | EDGAR |
| 2025-12-04 | 4 | MADRIGAL PHARMACEUTICALS, INC. (MDGL) | Option exercise (M): 50,000 · Sale (S): 2,400 @ $575.34 · Option exercise (M): 50,000 (derivative) | EDGAR |
| 2025-09-09 | 4 | MADRIGAL PHARMACEUTICALS, INC. (MDGL) | Sale (S): 7,279 @ $445.63 | EDGAR |
| 2025-08-21 | 4 | MADRIGAL PHARMACEUTICALS, INC. (MDGL) | Sale (S): 6,485 @ $400.03 · Sale (S): 1,131 @ $401.00 | EDGAR |
| 2025-03-07 | 4 | MADRIGAL PHARMACEUTICALS, INC. (MDGL) | Grant/award (A): 13,066 @ $0 · Grant/award (A): 22,009 (derivative) @ $0 | EDGAR |
| 2025-02-28 | 4 | MADRIGAL PHARMACEUTICALS, INC. (MDGL) | Option exercise (M): 50,000 · Option exercise (M): 50,000 (derivative) | EDGAR |
| 2025-01-27 | 4 | MADRIGAL PHARMACEUTICALS, INC. (MDGL) | Sale (S): 1,584 @ $335.24 | EDGAR |
| 2024-09-11 | 4 | MADRIGAL PHARMACEUTICALS, INC. (MDGL) | Sale (S): 6,363 @ $243.83 | EDGAR |
| 2024-01-25 | 4 | MADRIGAL PHARMACEUTICALS, INC. (MDGL) | Grant/award (A): 12,250 @ $0 · Grant/award (A): 18,459 (derivative) @ $0 · Grant/award (A): 12,250 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 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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