Stupp John P Jr - Net Worth and Insider Trading
Stupp John P Jr Net Worth
The estimated net worth of Stupp John P Jr is at least $161 Million dollars as of 2025-04-30. Stupp John P Jr is the Director of Spire Inc and owns about 1,121,160 shares of Spire Inc (SR) stock worth over $86 Million. Stupp John P Jr is also the Director of Atrion Corp and owns about 163,174 shares of Atrion Corp (ATRI) stock worth over $75 Million. Details can be seen in Stupp John P Jr's Latest Holdings Summary section.
Disclaimer: The insider information is derived from SEC filings. The estimated net worth is based on the final shares held after open market or private purchases and sales of common stock with a transaction code of "P" or "S" on Form 4, assuming that Stupp John P Jr has not made any transactions after 2021-06-10 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of Stupp John P Jr
Stupp John P Jr Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Stupp John P Jr owns 2 companies in total, including Atrion Corp (ATRI) , and Spire Inc (SR) .
Click here to see the complete history of Stupp John P Jr’s form 4 insider trades.
Insider Ownership Summary of Stupp John P Jr
Ticker | Company | Transaction Date | Type of Owner |
---|---|---|---|
ATRI | Atrion Corp | 2019-12-03 | director |
SR | Spire Inc | 2021-06-10 | director |
Stupp John P Jr Latest Holdings Summary
Stupp John P Jr currently owns a total of 2 stocks. Among these stocks, Stupp John P Jr owns 1,121,160 shares of Spire Inc (SR) as of June 10, 2021, with a value of $86 Million and a weighting of 53.52%. Stupp John P Jr also owns 163,174 shares of Atrion Corp (ATRI) as of December 3, 2019, with a value of $75 Million and a weighting of 46.48%.
Latest Holdings of Stupp John P Jr
Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
SR | Spire Inc | 2021-06-10 | 1,121,160 | 77.06 | 86,396,590 |
ATRI | Atrion Corp | 2019-12-03 | 163,174 | 459.92 | 75,046,986 |
Holding Weightings of Stupp John P Jr
Stupp John P Jr Form 4 Trading Tracker
According to the SEC Form 4 filings, Stupp John P Jr has made a total of 1 transactions in Spire Inc (SR) over the past 5 years, including 0 buys and 1 sells. The most-recent trade in Spire Inc is the sale of 6,000 shares on June 10, 2021, which brought Stupp John P Jr around $448,380.
According to the SEC Form 4 filings, Stupp John P Jr has made a total of 0 transactions in Atrion Corp (ATRI) over the past 5 years. The most-recent trade in Atrion Corp is the sale of 277 shares on December 3, 2019, which brought Stupp John P Jr around $197,077.
Insider Trading History of Stupp John P Jr
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Stupp John P Jr Trading Performance
Stupp John P Jr Ownership Network
Ownership Network List of Stupp John P Jr
Ownership Network Relation of Stupp John P Jr

Stupp John P Jr Owned Company Details
What does Atrion Corp do?
Who are the key executives at Atrion Corp?
Stupp John P Jr is the director of Atrion Corp. Other key executives at Atrion Corp include President & CEO David A Battat , Officer/ CFO Cindy Ferguson , and Vice President & CFO Jeffery Strickland .
Atrion Corp (ATRI) Insider Trades Summary
Over the past 18 months, Stupp John P Jr made no insider transaction in Atrion Corp (ATRI). Other recent insider transactions involving Atrion Corp (ATRI) include a net purchase of 300 shares made by Preston G Athey , and a net purchase of 300 shares made by David A Battat .
In summary, during the past 3 months, insiders sold 0 shares of Atrion Corp (ATRI) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 0 shares of Atrion Corp (ATRI) were sold and 600 shares were bought by its insiders, resulting in a net purchase of 600 shares.
Atrion Corp (ATRI)'s detailed insider trading history can be found in Insider Trading Tracker table.
Atrion Corp Insider Transactions
Stupp John P Jr Mailing Address
Above is the net worth, insider trading, and ownership report for Stupp John P Jr. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Stupp John P Jr's mailing address is: St Louis Mo 63124.