InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (4 ops.)
Insider track record
CEODisclosed buys
0
Disclosed sells
4
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Browse the detailed record of transactions filed by Sibold William John, Chief Executive Officer. Officer active across 1 company, notably Madrigal Pharmaceuticals, INC.. Aggregated, 8 reports have been recorded. Breakdown: 0 buy · 4 sells. Total volume traded: €6.9m. History available since 11 September 2023. The latest transaction was disclosed on 9 September 2025 (Cession). Regulator: SEC (Form 4). All data is free.
Declarations8 total
7,279 shares@ US$445.630.023% mcap50.0% of flowCommon StockSEC:0001518611-25-000009:0
6,485 shares@ US$400.0347Common StockSEC:0001518611-25-000007:0
13,066 shares0Common StockSEC:0001628280-25-011410:0
50,000 sharesCommon StockSEC:0001628280-25-009091:0
1,584 shares@ US$335.246.8% of flowCommon StockSEC:0001628280-25-002666:0
6,363 shares@ US$243.8318.8% of flowCommon StockSEC:0000950170-24-105650:0
12,250 shares0Common StockSEC:0000950170-24-007347:0
50,000 shares0Common StockSEC:0000950170-23-047950:0
8 of 8 declarations
About Sibold William John
Sibold William John is the Chief Executive Officer of MADRIGAL PHARMACEUTICALS, INC. He leads the company in the pharmaceutical sector, focusing on developing innovative treatments. His role is essential in guiding Madrigal towards innovation and growth in the healthcare field.
