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William Stiritz Insider Profile

4 Followers
William Stiritz, Director at Post Holdings, holds 4.85M shares in Post Holdings (Ticker: POST), holds 2.77M shares in Energizer Holdings (Ticker: ENR), holds 1.08M shares in Ball (Ticker: BALL). Most recently, William Stiritz Bought ― shares of Post Holdings on Jun 09, 2025 for an estimated value of 20.38M.
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William Stiritz

William Stiritz
Post Holdings (POST)
Director

Ranked #18,349 out of 102,596 Corporate Insiders

Profitable Transactions

83%
5 out of 6 Profitable Transactions

Average Return

+14.50%
Average return per transaction
Time Frame
1 Year
Compare to
No Benchmark

Insider Holdings

$660M
79.31%
10.17%
9.68%
0.56%
0.28% Others
A breakdown of William Stiritz's holdings

Insider Roles

Post Holdings
(POST)
Director
Energizer Holdings
(ENR)
Director
Ball
(BALL)
Director
Macy's
(M)
Director
+1 other positions
Roles that William Stiritz holds in companies

Most Profitable Insider Trade

Stock:
Post Holdings
(POST)
Rating:Informative Buy
Date:Feb 09, 2016 - Feb 09, 2017
Return:+38.40%
The most profitable trade made by William Stiritz

William Stiritz's Trading History

Company Name
Last Transaction Date
Insider Position
Last Transaction
Last Transaction Amount
Holding Value
Post Holdings
Jun 09, 2025
Director
Informative Buy
20.38M
$523.11M
Energizer Holdings
Director
$67.10M
Ball
Director
$63.83M
Macy's
Director
$3.71M
Vail Resorts
Sep 24, 2009
Director
Uninformative Buy
$1.82M
List of latest transactions for each holding click on a transaction to see William Stiritz's performance on stock

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 83%.
    What is the average return per transaction made by William Stiritz?
    The average return per transaction made by William Stiritz is 14.50%.
      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 Informative Buy of $20.38M.
          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 Director.
              How can I follow the stock ratings of top corporate insiders?
              Head over to our Expert Center to see a list of the Top 100 corporate insiders and follow the corporate insiders of your choice. Visit their profiles for more details about their stock transactions and see how they perform on a stock-by-stock basis.