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Data sources

Public disclosures only. Scores flag unusual patterns and are not evidence of wrongdoing. Not investment advice.

RH CHAIN…
OverviewFollow the MoneyDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
01Overview02Follow the Money03Daily Brief04Live05Congress06Corporate Insiders07Government Money08Political Influence09Institutions10Washington Network11Follow the Power12Disclosure Clock13AI Investigator14Watchlist
ConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
OverviewFollow the MoneyDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenProAccountMethodologyMatch reviewLaunch readiness
Data sources
SEC FORM 42h ago
HOUSE PTR2h ago
SEC 13F2h ago
ROBINHOOD CHAIN2h ago
Corporate insider
SJ

Sibold William John

Director, President and CEOCIK 0001518611

EDGAR filingsOpen in network
Disclosed transactions28
Buys / sells0 / 26
Max Insider Score33
Connections1with evidence

Disclosed transactions

ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
1
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$66K
120 sh
Sep 11, 2026Sep 11, 2026
traded Sep 11, 2026
+0dSEC FORM 4

Evidence

Verified connections

  • Insider ofevidence
    MADRIGAL PHARMACEUTICALS, INC.Director, President and CEO · Dec 4, 2025
1
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL
$199K
368 sh
Sep 11, 2026
Sep 11, 2026
traded Sep 11, 2026
+0d
SEC FORM 4

Evidence

4
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$652K
1,202 sh
Sep 11, 2026Sep 11, 2026
traded Sep 11, 2026
+0dSEC FORM 4

Evidence

4
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$837K
1,539 sh
Sep 11, 2026Sep 11, 2026
traded Sep 11, 2026
+0dSEC FORM 4

Evidence

4
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$415K
761 sh
Sep 11, 2026Sep 11, 2026
traded Sep 11, 2026
+0dSEC FORM 4

Evidence

7
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$277K
522 sh
Sep 9, 2026Sep 11, 2026
traded Sep 9, 2026
+2dSEC FORM 4

Evidence

7
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$280K
520 sh
Sep 9, 2026Sep 11, 2026
traded Sep 9, 2026
+2dSEC FORM 4

Evidence

4
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$87K
160 sh
Sep 9, 2026Sep 11, 2026
traded Sep 9, 2026
+2dSEC FORM 4

Evidence

0
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$32K
60 sh
Sep 11, 2026Sep 11, 2026
traded Sep 11, 2026
+0dSEC FORM 4

Evidence

4
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$69K
131 sh
Sep 9, 2026Sep 11, 2026
traded Sep 9, 2026
+2dSEC FORM 4

Evidence

4
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$184K
347 sh
Sep 9, 2026Sep 11, 2026
traded Sep 9, 2026
+2dSEC FORM 4

Evidence

4
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$196K
368 sh
Sep 9, 2026Sep 11, 2026
traded Sep 9, 2026
+2dSEC FORM 4

Evidence

7
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$273K
512 sh
Sep 9, 2026Sep 11, 2026
traded Sep 9, 2026
+2dSEC FORM 4

Evidence

4
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$212K
396 sh
Sep 9, 2026Sep 11, 2026
traded Sep 9, 2026
+2dSEC FORM 4

Evidence

7
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$345K
644 sh
Sep 9, 2026Sep 11, 2026
traded Sep 9, 2026
+2dSEC FORM 4

Evidence

7
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$558K
1,040 sh
Sep 9, 2026Sep 11, 2026
traded Sep 9, 2026
+2dSEC FORM 4

Evidence

7
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$344K
640 sh
Sep 9, 2026Sep 11, 2026
traded Sep 9, 2026
+2dSEC FORM 4

Evidence

4
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$116K
215 sh
Sep 9, 2026Sep 11, 2026
traded Sep 9, 2026
+2dSEC FORM 4

Evidence

7
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$273K
505 sh
Sep 9, 2026Sep 11, 2026
traded Sep 9, 2026
+2dSEC FORM 4

Evidence

4
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$196K
362 sh
Sep 9, 2026Sep 11, 2026
traded Sep 9, 2026
+2dSEC FORM 4

Evidence

1
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$57K
106 sh
Sep 11, 2026Sep 11, 2026
traded Sep 11, 2026
+0dSEC FORM 4

Evidence

1
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$117K
218 sh
Sep 11, 2026Sep 11, 2026
traded Sep 11, 2026
+0dSEC FORM 4

Evidence

1
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$86K
160 sh
Sep 11, 2026Sep 11, 2026
traded Sep 11, 2026
+0dSEC FORM 4

Evidence

4
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale · 10b5-1 plan
SELL$371K
687 sh
Sep 11, 2026Sep 11, 2026
traded Sep 11, 2026
+0dSEC FORM 4

Evidence

33
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale
SELL$777K
1,577 sh
Jan 26, 2026Jan 26, 2026
traded Jan 26, 2026
+0dSEC FORM 4

Evidence

17
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Option exercise
M—
50.0K sh
Dec 3, 2025Dec 4, 2025
traded Dec 3, 2025
+1dSEC FORM 4

Evidence

30
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Open-market sale
SELL$1.38M
2,400 sh
Dec 4, 2025Dec 4, 2025
traded Dec 4, 2025
+0dSEC FORM 4

Evidence

9
SJ
Sibold William JohnDirector, President and CEO
MDGLMADRIGAL PHARMACEUTICALS, INC.
Option exercise
M—
50.0K sh
Dec 3, 2025Dec 4, 2025
traded Dec 3, 2025
+1dSEC FORM 4

Evidence