Madrigal Pharmaceuticals Inc.

Last updated September 27, 2026

Organization details

Legal name
Madrigal Pharmaceuticals Inc.
Former names
Synta Pharmaceuticals Corp
Ownership
Public
Status
Active
SIC code
2834 — Pharmaceutical Preparations
Jurisdiction of incorporation
Delaware
Headquarters city
West Conshohocken
Headquarters state / province
Pennsylvania
Headquarters country
United States
Fiscal year end
December
Ticker symbol
MDGL
Primary stock exchange
Nasdaq

Identifiers

SEC CIK
0001157601

Board of directors

Chief executives

William John Sibold · President and CEO
Since September 2023

Director election results

Annual meeting of June 16, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

8 of this board's directors also sit on 20 other boards.

Network of Madrigal Pharmaceuticals Inc.'s board connections ACADIA Pharmaceuticals Inc. ACADIA Pharmaceuticals... Incyte Corp. Incyte Corp. Kiniksa Pharmaceuticals International plc Kiniksa Pharmaceutical... Kodiak Sciences Inc Kodiak Sciences Inc Prelude Therapeutics Incorporated Prelude Therapeutics I... vTv Therapeutics Inc. vTv Therapeutics Inc. BeOne Medicines Ltd. BeOne Medicines Ltd. Bicycle Therapeutics plc Bicycle Therapeutics p... DBV Technologies S.A. DBV Technologies S.A. Denali Therapeutics Inc. Denali Therapeutics In... Immunocore Holdings plc Immunocore Holdings pl... Kymera Therapeutics Inc. Kymera Therapeutics In... Neurogene Inc. Neurogene Inc. Replimune Group Inc. Replimune Group Inc. TScan Therapeutics Inc. TScan Therapeutics Inc... Agios Pharmaceuticals Inc. Agios Pharmaceuticals... Felix Baker Felix Baker Jacqualyn A. Fouse Jacqualyn A. Fouse James M. Daly James M. Daly Julian Baker Julian Baker Paul A. Friedman Paul A. Friedman Raymond Cheong Raymond Cheong Richard S. Levy Richard S. Levy Madrigal Pharmaceuticals I...
Shared director Other board Same sector +4 more in the list below

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months
$0
0 purchases by 0 insiders
Sold, last 12 months
$81,480,570
202 sales by 9 insiders
Date Insider Transaction Shares Price Value
Sep 11, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −60 $533.09 $31,985
Sep 11, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −106 $534.06 $56,611
Sep 11, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −218 $535.94 $116,836
Sep 11, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −160 $537.62 $86,019
Sep 11, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −687 $540.59 $371,382
Sep 11, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −368 $541.64 $199,324
Sep 11, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −1,202 $542.60 $652,209
Sep 11, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −1,539 $544.02 $837,253
Sep 11, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −761 $544.83 $414,616
Sep 11, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −120 $546.38 $65,565
Sep 9, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −131 $527.88 $69,152
Sep 9, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −347 $529.27 $183,656
Sep 9, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −522 $530.23 $276,781
Sep 9, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −368 $531.99 $195,772
Sep 9, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −512 $533.09 $272,944

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