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Interactive Brokers Group, Inc. planned insider sales

In the last twelve months insiders at Interactive Brokers Group, Inc. filed 2 Form 144 notices of planned sales, 426,000 shares worth $32.3 million at the time of filing, from 2 sellers. The latest, filed 28 April 2026: Harris Lawrence E (director), 26,000 shares worth $2.0 million, planned for around 28 April 2026 through Interactive Brokers LLC.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
28 April 2026Harris Lawrence EDirector26,000$2.0 million28 April 202626,000 shares from 28 April 2026Interactive Brokers LLCPurchaseForm 144
22 January 2026Nemser Earl HOfficer, Director400,000$30.3 million22 January 2026400,000 shares from 22 January 2026Interactive Brokers LLCRedemption TransactionForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?