Madrigal Pharmaceuticals Inc.

Last updated September 27, 2026

Organization details

Legal name
Madrigal Pharmaceuticals Inc.
Former names
Synta Pharmaceuticals Corp
Ownership
Public
Status
Active
Sector (GICS)
Health Care
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
Paul A. Friedman · Chief Executive Officer
Until September 2023 · Former

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 21 other boards. 20 are in the same sector.

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 +5 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
$35,023,032
5 purchases by 1 insider
Sold, last 12 months
$73,883,995
192 sales by 8 insiders
Date Insider Transaction Shares Price Value
Nov 6, 2026 Kelley Shannon T Officer (General Counsel) Open-market sale −1,077 $400.00 $430,800
Nov 6, 2026 BAKER BROS. ADVISORS LP Director Open-market purchase +60,400 $383.02 $23,134,106
Nov 6, 2026 BAKER BROS. ADVISORS LP Director Open-market purchase +13,740 $388.29 $5,335,105
Nov 6, 2026 BAKER BROS. ADVISORS LP Director Open-market purchase +2,000 $396.61 $793,220
Nov 4, 2026 BAKER BROS. ADVISORS LP Director Open-market purchase +5,586 $366.99 $2,050,018
Nov 4, 2026 BAKER BROS. ADVISORS LP Director Open-market purchase +10,080 $368.11 $3,710,583
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 $56,610
Sep 11, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −218 $535.94 $116,835
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 $371,385
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 $652,205
Sep 11, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −1,539 $544.02 $837,247
Sep 11, 2026 William John Sibold Director, Officer (President and CEO) Open-market sale −761 $544.83 $414,616

Organizations in the same sector, closest in location and size first.

Questions about Madrigal Pharmaceuticals Inc.

Who is the CEO of Madrigal Pharmaceuticals Inc.?

William John Sibold has been Madrigal Pharmaceuticals Inc.'s President and CEO since September 2023.

How many directors are on Madrigal Pharmaceuticals Inc.'s board?

Madrigal Pharmaceuticals Inc.'s board has 13 directors: Daniel J. Brennan, Felix Baker, Fred B. Craves, Jacqualyn A. Fouse, James M. Daly, John C. Reed, Julian Baker, Kenneth Bate, Paul A. Friedman, Raymond Cheong and 3 others.

Are Madrigal Pharmaceuticals Inc. insiders buying or selling shares?

Over the last 12 months, Madrigal Pharmaceuticals Inc. insiders bought $35.0 million of shares in 5 purchases and sold $73.9 million of shares in 192 sales on the open market, as reported to the SEC on Forms 4 and 5.

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