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William John Sibold Insider Profile
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William John Sibold, SVP & Chief Commercial Officer at Avanir Pharmaceuticals, holds 102.47K shares in Madrigal Pharmaceuticals (Ticker: MDGL), holds 20.00K shares in Avanir Pharmaceuticals (Ticker: AVNR). Most recently, William John Sibold Sold ― shares of Madrigal Pharmaceuticals on Sep 09, 2025 for an estimated value of $3.24M.
William John Sibold Avanir Pharmaceuticals (AVNR)SVP & Chief Commercial Officer
Avanir Pharmaceuticals (AVNR)
SVP & Chief Commercial Officer
Ranked #89,727 out of 103,431 Corporate Insiders
Profitable Transactions
0 out of 2 Profitable Transactions
Average Return
-62.40%
Average return per transaction
Time Frame
Compare to
Insider Holdings
100.00%
A breakdown of William John Sibold's holdings
Insider Roles
President & CEO, Director
Roles that William John Sibold holds in companies
Most Profitable Insider Trade
The most profitable trade made by William John Sibold
William John Sibold's Trading History
Avanir Pharmaceuticals
May 05, 2011
―
Uninformative Buy
―
―
Madrigal Pharmaceuticals
Sep 09, 2025
President & CEO, Director
Informative Sell
3.24M
$43.61M
List of latest transactions for each holding click on a transaction to see William John Sibold's performance on stock
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William John Sibold insider profile FAQ
What is the percentage of profitable transactions made by William John Sibold?
The percentage of profitable transactions made by William John Sibold is 0%.
What is the average return per transaction made by William John Sibold?
The average return per transaction made by William John Sibold is -62.40%.
What stocks does William John Sibold hold?
William John Sibold holds: AVNR, MDGL stocks.
What was William John Sibold’s latest transaction?
William John Sibold latest transaction was an Informative Sell of $3.24M.
What was William John Sibold's most profitable transaction?
William John Sibold’s most profitable transaction was an Informative Sell of MDGL stock on January 27, 2025. The return on the trade was -39.20%.
What is William John Sibold's role in Avanir Pharmaceuticals?
William John Sibold's role in Avanir Pharmaceuticals is SVP & Chief Commercial Officer.
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