Thomas J Seifert - Net Worth and Insider Trading
Thomas J Seifert Net Worth
The estimated net worth of Thomas J Seifert is at least $39 Million dollars as of 2025-05-10. Thomas J Seifert is the CFO of Cloudflare Inc and owns about 293,582 shares of Cloudflare Inc (NET) stock worth over $39 Million. Thomas J Seifert is also the Director of IPG Photonics Corp and owns about 5,114 shares of IPG Photonics Corp (IPGP) stock worth over $307,607. Details can be seen in Thomas J Seifert'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 Thomas J Seifert has not made any transactions after 2025-04-25 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.
Transaction Summary of Thomas J Seifert
Thomas J Seifert Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Thomas J Seifert owns 4 companies in total, including Cloudflare Inc (NET) , IPG Photonics Corp (IPGP) , and Gen Digital Inc (GEN) among others .
Click here to see the complete history of Thomas J Seifert’s form 4 insider trades.
Insider Ownership Summary of Thomas J Seifert
| Ticker | Company | Transaction Date | Type of Owner |
|---|---|---|---|
| NET | Cloudflare Inc | 2025-04-25 | Chief Financial Officer |
| IPGP | IPG Photonics Corp | 2020-12-07 | director |
| GEN | Gen Digital Inc | 2014-03-17 | EVP & Chief Financial Officer |
 | | 2010-11-09 | SVP & CFO |
Thomas J Seifert Latest Holdings Summary
Thomas J Seifert currently owns a total of 2 stocks. Among these stocks, Thomas J Seifert owns 293,582 shares of Cloudflare Inc (NET) as of April 25, 2025, with a value of $39 Million and a weighting of 99.21%. Thomas J Seifert also owns 5,114 shares of IPG Photonics Corp (IPGP) as of December 7, 2020, with a value of $307,607 and a weighting of 0.79%.
Latest Holdings of Thomas J Seifert
| Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
|---|---|---|---|---|---|
| NET | Cloudflare Inc | 2025-04-25 | 293,582 | 132.34 | 38,852,642 |
| IPGP | IPG Photonics Corp | 2020-12-07 | 5,114 | 60.15 | 307,607 |
Holding Weightings of Thomas J Seifert
Thomas J Seifert Form 4 Trading Tracker
According to the SEC Form 4 filings, Thomas J Seifert has made a total of 106 transactions in Cloudflare Inc (NET) over the past 5 years, including 0 buys and 106 sells. The most-recent trade in Cloudflare Inc is the sale of 10,000 shares on April 25, 2025, which brought Thomas J Seifert around $1 Million.
According to the SEC Form 4 filings, Thomas J Seifert has made a total of 1 transactions in IPG Photonics Corp (IPGP) over the past 5 years, including 0 buys and 1 sells. The most-recent trade in IPG Photonics Corp is the sale of 11,370 shares on December 7, 2020, which brought Thomas J Seifert around $2 Million.
Insider Trading History of Thomas J Seifert
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Thomas J Seifert Trading Performance
Thomas J Seifert Ownership Network
Ownership Network List of Thomas J Seifert
Ownership Network Relation of Thomas J Seifert
Thomas J Seifert's Compensation Overview
| Company | Year | Salary($) | Bonus($) | Stock Awards($) | Option Awards($) | Equity Awards($) | Non-Equity Incentive Plan($) | All Other Compensation($) | Change in Pension and Deferred Comp($) | Total($) |
|---|---|---|---|---|---|---|---|---|---|---|
| Cloudflare Inc | 2023 | 650,000 | N/A | 12,887,596 | 3,579,519 | N/A | N/A | 0 | N/A | 17,117,115 |
| | | | | | | | | | |
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Thomas J Seifert Owned Company Details
What does Cloudflare Inc do?
Who are the key executives at Cloudflare Inc?
Thomas J Seifert is the Chief Financial Officer of Cloudflare Inc. Other key executives at Cloudflare Inc include General Counsel Douglas James Kramer , director & Chief Operating Officer Michelle Zatlyn , and director & 10 percent owner & CEO and Chair of the Board Matthew Prince .
Cloudflare Inc (NET) Insider Trades Summary
Over the past 18 months, Thomas J Seifert made 37 insider transaction in Cloudflare Inc (NET) with a net sale of 814,342. Other recent insider transactions involving Cloudflare Inc (NET) include a net sale of 611,764 shares made by Carl Ledbetter , a net sale of 2,828,736 shares made by Matthew Prince , and a net sale of 74,481 shares made by Douglas James Kramer .
In summary, during the past 3 months, insiders sold 804,578 shares of Cloudflare Inc (NET) in total and bought 0 shares, with a net sale of 804,578 shares. During the past 18 months, 6,325,584 shares of Cloudflare Inc (NET) were sold and 0 shares were bought by its insiders, resulting in a net sale of 6,325,584 shares.
Cloudflare Inc (NET)'s detailed insider trading history can be found in Insider Trading Tracker table.
Cloudflare Inc Insider Transactions
Thomas J Seifert Mailing Address
Above is the net worth, insider trading, and ownership report for Thomas J Seifert. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Thomas J Seifert's mailing address is: San Francisco Ca 94107.
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