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INTERACTIVE BROKERS GRO-CL A (IBKR) Stock Ownership and Short Interest

USA - NASDAQ:IBKR - US45841N1072 - Common Stock

69.49 USD
+0.74 (+1.08%)
Last: 10/27/2025, 8:26:58 PM
69.5 USD
+0.01 (+0.01%)
After Hours: 10/27/2025, 8:26:58 PM
IBKR Ownership Chart.IBKR Ownership Chart: showing Insider, Institutional ownership and shares available to the public.IBKR Ownership.InsiderInstitutionalPublic



Shares Outstanding1.70B
Float432.51M
Float Short Interest Percentage2.32%
Owners (insider)4.56%
Owners (institutional)88.92%
Owners (insider) change-0.01%
Owners (institutional) change0.53%
IBKR Institutional Ownership HistoryIBKR Institutional Ownership HistoryIBKR Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 100M 200M 300M
IBKR Historical Insider Transactions ChartIBKR Historical Insider Buy and Sell Transactions ChartIBKR Historical Insider Transactions Nov 2024 Dec 2024 Jan 2025 Feb 2025 Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 0 500K -500K 1M
Date Name Type Shares Price Amount
Sep 29, 2025 Brody Paul Jonathan Open Market Sale 21361 68.11 $ 1,454,991.48
Sep 25, 2025 Brody Paul Jonathan Open Market Sale 31354 65.34 $ 2,048,553.83
Sep 23, 2025 Brody Paul Jonathan Open Market Sale 33416 65.09 $ 2,174,957.54
Sep 19, 2025 Brody Paul Jonathan Open Market Sale 65895 64.46 $ 4,247,749.02
Sep 17, 2025 Brody Paul Jonathan Open Market Sale 223382 63.54 $ 14,193,790.46
Sep 15, 2025 Brody Paul Jonathan Open Market Sale 195482 62.68 $ 12,252,246.40
Sep 11, 2025 Brody Paul Jonathan Open Market Sale 209783 63.62 $ 13,345,629.87
Sep 9, 2025 Brody Paul Jonathan Open Market Sale 212399 62.19 $ 13,208,163.28
Aug 14, 2025 Nemser Earl H Open Market Sale 53900 64.00 $ 3,449,441.56
Aug 12, 2025 Nemser Earl H Open Market Sale 201686 67.39 $ 13,592,581.68
Aug 8, 2025 Nemser Earl H Open Market Sale 25682 65.88 $ 1,691,929.23
Aug 6, 2025 Nemser Earl H Open Market Sale 25682 63.72 $ 1,636,390.62
Aug 4, 2025 Nemser Earl H Open Market Sale 25682 64.17 $ 1,648,119.38
Jul 31, 2025 Nemser Earl H Open Market Sale 27482 65.28 $ 1,793,964.92
Jul 30, 2025 Nemser Earl H Open Market Sale 39786 66.38 $ 2,640,975.52
Jul 30, 2025 Brody Paul Jonathan Grant 1000000 66.22 $ 66,220,000.00
Jul 30, 2025 Nemser Earl H Grant 400000 66.22 $ 26,488,000.00
Jul 28, 2025 Nemser Earl H Open Market Sale 100 65.90 $ 6,590.00
Jun 23, 2025 Nemser Earl H Other Disposition 500 0.00 $ 0.00
Feb 20, 2025 Peterffy Thomas Other Disposition 6447 0.00 $ 0.00
Feb 18, 2025 Peterffy Thomas Other Disposition 90297 0.00 $ 0.00
Jan 31, 2025 Bright Jill Open Market Purchase 135 219.51 $ 29,633.85
Dec 31, 2024 Galik Milan Other Disposition 223922 0.00 $ 0.00
Nov 27, 2024 Galik Milan Other Disposition 447844 191.31 $ 85,677,035.64