Stewart Butterfield - Net Worth and Insider Trading
Stewart Butterfield Net Worth
The estimated net worth of Stewart Butterfield is at least $44 Million dollars as of 2025-04-26. Stewart Butterfield is the CEO of Slack Technologies Inc and owns about 973,670 shares of Slack Technologies Inc (WORK) stock worth over $44 Million. Details can be seen in Stewart Butterfield'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 Stewart Butterfield has not made any transactions after 2021-04-15 and currently still holds the listed stock(s). Please note that this estimate may not reflect the actual net worth.

Transaction Summary of Stewart Butterfield
Stewart Butterfield Insider Ownership Reports
Based on ownership reports from SEC filings, as the reporting owner, Stewart Butterfield owns 1 companies in total, including Slack Technologies Inc (WORK) .
Click here to see the complete history of Stewart Butterfield’s form 4 insider trades.
Insider Ownership Summary of Stewart Butterfield
Ticker | Company | Transaction Date | Type of Owner |
---|---|---|---|
WORK | Slack Technologies Inc | 2021-04-15 | director & Chief Executive Officer |
Stewart Butterfield Latest Holdings Summary
Stewart Butterfield currently owns a total of 1 stock. Stewart Butterfield owns 973,670 shares of Slack Technologies Inc (WORK) as of April 15, 2021, with a value of $44 Million.
Latest Holdings of Stewart Butterfield
Ticker | Company | Latest Transaction Date | Shares Owned | Current Price ($) | Current Value ($) |
---|---|---|---|---|---|
WORK | Slack Technologies Inc | 2021-04-15 | 973,670 | 45.20 | 44,009,884 |
Holding Weightings of Stewart Butterfield
Stewart Butterfield Form 4 Trading Tracker
According to the SEC Form 4 filings, Stewart Butterfield has made a total of 14 transactions in Slack Technologies Inc (WORK) over the past 5 years, including 0 buys and 14 sells. The most-recent trade in Slack Technologies Inc is the sale of 250,000 shares on April 15, 2021, which brought Stewart Butterfield around $11 Million.
Insider Trading History of Stewart Butterfield
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Stewart Butterfield Trading Performance
Stewart Butterfield Ownership Network
Ownership Network List of Stewart Butterfield
Ownership Network Relation of Stewart Butterfield

Stewart Butterfield Owned Company Details
What does Slack Technologies Inc do?
Who are the key executives at Slack Technologies Inc?
Stewart Butterfield is the director & Chief Executive Officer of Slack Technologies Inc. Other key executives at Slack Technologies Inc include General Counsel and Secretary David Schellhase , Chief Financial Officer Allen Shim , and Sr VP Sales & Customer Success Robert Frati .
Slack Technologies Inc (WORK) Insider Trades Summary
In summary, during the past 3 months, insiders sold 0 shares of Slack Technologies Inc (WORK) in total and bought 0 shares, with a net sale of 0 shares. During the past 18 months, 0 shares of Slack Technologies Inc (WORK) were sold and 0 shares were bought by its insiders, resulting in a net sale of 0 shares.
Slack Technologies Inc (WORK)'s detailed insider trading history can be found in Insider Trading Tracker table.
Slack Technologies Inc Insider Transactions
Stewart Butterfield Mailing Address
Above is the net worth, insider trading, and ownership report for Stewart Butterfield. Based on the public information released on the U.S. Securities and Exchange Commission (SEC) website, Stewart Butterfield's mailing address is: Inc. 500 Howard Street San Francisco Ca 94105.