Katherine Schuelke - Net Worth and Insider Trading
Katherine Schuelke Net Worth
The estimated net worth of Katherine Schuelke is at least $8 Million dollars as of 2025-04-27. Katherine Schuelke is the Sr VP, GC & Secretary of Altair Engineering Inc and owns about 34,110 shares of Altair Engineering Inc (ALTR) stock worth over $4 Million. Katherine Schuelke is the SVP, CLO & Corporate Secretary of Seagate Technology Holdings PLC and owns about 29,063 shares of Seagate Technology Holdings PLC (STX) stock worth over $2 Million. Katherine Schuelke is also the Director of SiTime Corp and owns about 10,830 shares of SiTime Corp (SITM) stock worth over $2 Million. Details can be seen in Katherine Schuelke'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 Katherine Schuelke has not made any transactions after 2024-12-06 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of Katherine Schuelke
Katherine Schuelke Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Katherine Schuelke owns 2 companies in total, including Seagate Technology Holdings PLC (STX) , and SiTime Corp (SITM) .
Click here to see the complete history of Katherine Schuelke’s form 4 insider trades.
Insider Ownership Summary of Katherine Schuelke
Ticker | Company | Transaction Date | Type of Owner |
---|---|---|---|
STX | Seagate Technology Holdings PLC | 2023-12-09 | SVP & CLO & Corporate Secretary |
SITM | SiTime Corp | 2024-12-06 | director |
Katherine Schuelke Latest Holdings Summary
Katherine Schuelke currently owns a total of 3 stocks. Among these stocks, Katherine Schuelke owns 34,110 shares of Altair Engineering Inc (ALTR) as of June 2, 2015, with a value of $4 Million and a weighting of 48.44%. Katherine Schuelke owns 29,063 shares of Seagate Technology Holdings PLC (STX) as of December 9, 2023, with a value of $2 Million and a weighting of 30.52%. Katherine Schuelke also owns 10,830 shares of SiTime Corp (SITM) as of December 6, 2024, with a value of $2 Million and a weighting of 21.04%.
Latest Holdings of Katherine Schuelke
Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
ALTR | Altair Engineering Inc | 2015-06-02 | 34,110 | 111.85 | 3,815,204 |
STX | Seagate Technology Holdings PLC | 2023-12-09 | 29,063 | 82.70 | 2,403,510 |
SITM | SiTime Corp | 2024-12-06 | 10,830 | 153.04 | 1,657,423 |
Holding Weightings of Katherine Schuelke
Katherine Schuelke Form 4 Trading Tracker
According to the SEC Form 4 filings, Katherine Schuelke has made a total of 0 transactions in Altair Engineering Inc (ALTR) over the past 5 years. The most-recent trade in Altair Engineering Inc is the sale of 14,639 shares on June 2, 2015, which brought Katherine Schuelke around $756,690.
According to the SEC Form 4 filings, Katherine Schuelke has made a total of 6 transactions in Seagate Technology Holdings PLC (STX) over the past 5 years, including 0 buys and 6 sells. The most-recent trade in Seagate Technology Holdings PLC is the sale of 248 shares on December 9, 2023, which brought Katherine Schuelke around $19,986.
According to the SEC Form 4 filings, Katherine Schuelke has made a total of 8 transactions in SiTime Corp (SITM) over the past 5 years, including 0 buys and 8 sells. The most-recent trade in SiTime Corp is the sale of 6,933 shares on December 6, 2024, which brought Katherine Schuelke around $2 Million.
Insider Trading History of Katherine Schuelke
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Katherine Schuelke Trading Performance
Katherine Schuelke Ownership Network
Ownership Network List of Katherine Schuelke
Ownership Network Relation of Katherine Schuelke

Katherine Schuelke Owned Company Details
What does Seagate Technology Holdings PLC do?
Who are the key executives at Seagate Technology Holdings PLC?
Katherine Schuelke is the SVP & CLO & Corporate Secretary of Seagate Technology Holdings PLC. Other key executives at Seagate Technology Holdings PLC include President & COO William D Mosley , SVP & HDD & SDD Products & CTO John Christopher Morris , and EVP & CFO Gianluca Romano .
Seagate Technology Holdings PLC (STX) Insider Trades Summary
Over the past 18 months, Katherine Schuelke made 1 insider transaction in Seagate Technology Holdings PLC (STX) with a net sale of 248. Other recent insider transactions involving Seagate Technology Holdings PLC (STX) include a net sale of 457,369 shares made by William D Mosley , a net sale of 31,351 shares made by John Christopher Morris , and a net sale of 242,057 shares made by Gianluca Romano .
In summary, during the past 3 months, insiders sold 40,000 shares of Seagate Technology Holdings PLC (STX) in total and bought 0 shares, with a net sale of 40,000 shares. During the past 18 months, 808,741 shares of Seagate Technology Holdings PLC (STX) were sold and 0 shares were bought by its insiders, resulting in a net sale of 808,741 shares.
Seagate Technology Holdings PLC (STX)'s detailed insider trading history can be found in Insider Trading Tracker table.
Seagate Technology Holdings PLC Insider Transactions
Katherine Schuelke Mailing Address
Above is the net worth, insider trading, and ownership report for Katherine Schuelke. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Katherine Schuelke's mailing address is: Fremont Ca 94538.