Brody Paul Jonathan, Chief Financial Officer of Interactive Brokers Group (IBKR), has been a heavy net seller of company stock over the past year, with Form 4 filings showing a pronounced disposition bias. Across 40 reported transactions, he has executed zero open-market purchases, while selling approximately $62.9 million worth of IBKR shares. The bulk of this activity is concentrated in a two-week window from September 18 to September 30, 2025, during which he filed 21 separate sale transactions, ranging in size from roughly $9,100 to $4.6 million. The largest single disposition occurred on September 18, 2025, when he sold shares valued at about $4.62 million, followed by a $3.27 million sale the next day. Smaller sales continued through late September, including a $1.02 million transaction on September 26, before the pattern halted abruptly at the end of the month.
The selling is complemented by a substantial volume of non-discretionary acquisitions, totaling roughly $66.3 million, which are largely mechanical in nature. These include option exercises (code M) and restricted stock grants (code A), such as the $25,016 awards dated January 1, 2026, and December 31, 2025. Notably, a May 8, 2026 filing shows $7.0 million in shares withheld to cover tax obligations (code F), an automatic transaction tied to equity vesting rather than a discretionary trade. The absence of any open-market buys (code P) throughout the period underscores that all of Jonathan’s trading activity has been on the sell side, with the recent September cluster representing a deliberate liquidation of a large block of shares. While the compensation-driven acquisitions replenish his holdings, the consistent and sizable sales—totaling over $62 million—signal a clear directional preference toward reducing his IBKR position in the open market.
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