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William Stiritz Insider Profile
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William Stiritz, Chairman Emeritus at Post Holdings, holds 4.89M shares in Post Holdings (Ticker: POST), holds 2.77M shares in Energizer Holdings (Ticker: ENR), holds 1.08M shares in Ball (Ticker: BALL).
William Stiritz Post Holdings (POST)Chairman Emeritus
Post Holdings (POST)
Chairman Emeritus
Ranked #21,712 out of 105,481 Corporate Insiders
Profitable Transactions
5 out of 7 Profitable Transactions
Average Return
+10.10%
Average return per transaction
Time Frame
Compare to
Insider Holdings
Insider Roles
Roles that William Stiritz holds in companies
Most Profitable Insider Trade
The most profitable trade made by William Stiritz
William Stiritz's Trading History
Post Holdings
Dec 19, 2025
Chairman Emeritus
Uninformative Buy
18.39M
$481.14M
Energizer Holdings
―
Director
―
$58.47M
Ball
―
Director
―
$59.31M
Macy's
―
Director
―
$6.73M
Vail Resorts
Sep 24, 2009
Director
Uninformative Buy
―
$1.56M
List of latest transactions for each holding click on a transaction to see William Stiritz's performance on stock
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William Stiritz insider profile FAQ
What is the percentage of profitable transactions made by William Stiritz?
The percentage of profitable transactions made by William Stiritz is 71%.
What is the average return per transaction made by William Stiritz?
The average return per transaction made by William Stiritz is 10.10%.
What stocks does William Stiritz hold?
William Stiritz holds: POST, ENR, BALL, M, MTN stocks.
What was William Stiritz’s latest transaction?
William Stiritz latest transaction was an Uninformative Buy of $18.39M.
What was William Stiritz's most profitable transaction?
William Stiritz’s most profitable transaction was an Informative Buy of POST stock on February 9, 2016. The return on the trade was 38.40%.
What is William Stiritz's role in Post Holdings?
William Stiritz's role in Post Holdings is Chairman Emeritus.
How can I follow the stock ratings of top corporate insiders?
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