Guy Chiarello - Net Worth and Insider Trading
Guy Chiarello Net Worth
The estimated net worth of Guy Chiarello is at least $92 Million dollars as of 2025-04-14. Guy Chiarello is the COO of Fiserv Inc and owns about 265,092 shares of Fiserv Inc (FI) stock worth over $56 Million. Guy Chiarello is also the President of First Data Corp and owns about 1,120,588 shares of First Data Corp (FDC) stock worth over $36 Million. Details can be seen in Guy Chiarello'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 Guy Chiarello has not made any transactions after 2025-02-20 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of Guy Chiarello
Guy Chiarello Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Guy Chiarello owns 2 companies in total, including Fiserv Inc (FI) , and First Data Corp (FDC) .
Click here to see the complete history of Guy Chiarello’s form 4 insider trades.
Insider Ownership Summary of Guy Chiarello
Ticker | Comapny | Transaction Date | Type of Owner |
---|---|---|---|
FI | Fiserv Inc | 2025-02-20 | Chief Administrative Officer |
FDC | First Data Corp | 2019-07-29 | President |
Guy Chiarello Latest Holdings Summary
Guy Chiarello currently owns a total of 2 stocks. Among these stocks, Guy Chiarello owns 265,092 shares of Fiserv Inc (FI) as of February 20, 2025, with a value of $56 Million and a weighting of 61.31%. Guy Chiarello also owns 1,120,588 shares of First Data Corp (FDC) as of March 15, 2019, with a value of $36 Million and a weighting of 38.69%.
Latest Holdings of Guy Chiarello
Ticker | Comapny | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
FI | Fiserv Inc | 2025-02-20 | 265,092 | 212.24 | 56,263,126 |
FDC | First Data Corp | 2019-03-15 | 1,120,588 | 31.69 | 35,511,434 |
Holding Weightings of Guy Chiarello
Guy Chiarello Form 4 Trading Tracker
According to the SEC Form 4 filings, Guy Chiarello has made a total of 45 transactions in Fiserv Inc (FI) over the past 5 years, including 0 buys and 45 sells. The most-recent trade in Fiserv Inc is the sale of 45,000 shares on February 20, 2025, which brought Guy Chiarello around $11 Million.
According to the SEC Form 4 filings, Guy Chiarello has made a total of 0 transactions in First Data Corp (FDC) over the past 5 years. The most-recent trade in First Data Corp is the sale of 203,647 shares on March 15, 2019, which brought Guy Chiarello around $5 Million.
Insider Trading History of Guy Chiarello
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Guy Chiarello Trading Performance
Guy Chiarello Ownership Network
Ownership Network List of Guy Chiarello
Ownership Network Relation of Guy Chiarello

Guy Chiarello Owned Company Details
What does Fiserv Inc do?
Who are the key executives at Fiserv Inc?
Guy Chiarello is the Chief Administrative Officer of Fiserv Inc. Other key executives at Fiserv Inc include Chief Admin. and Legal Officer Adam L. Rosman , Chief Accounting Officer Kenneth Best , and director & President and COO Frank Bisignano .
Fiserv Inc (FI) Insider Trades Summary
Over the past 18 months, Guy Chiarello made 10 insider transaction in Fiserv Inc (FI) with a net sale of 322,075. Other recent insider transactions involving Fiserv Inc (FI) include a net sale of 29,959 shares made by Kenneth Best , a net sale of 21,690 shares made by , and a net sale of 188,088 shares made by Robert W. Hau .
In summary, during the past 3 months, insiders sold 46,742 shares of Fiserv Inc (FI) in total and bought 0 shares, with a net sale of 46,742 shares. During the past 18 months, 805,616 shares of Fiserv Inc (FI) were sold and 0 shares were bought by its insiders, resulting in a net sale of 805,616 shares.
Fiserv Inc (FI)'s detailed insider trading history can be found in Insider Trading Tracker table.
Fiserv Inc Insider Transactions
Guy Chiarello Mailing Address
Above is the net worth, insider trading, and ownership report for Guy Chiarello. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Guy Chiarello's mailing address is: New York Ny 10281.