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IBKR Interactive Brokers Group, Inc. Class A Common Stock

Insider figures are trailing 90 days, open-market Form 4 only. Institutional figures are the latest reported quarter. These windows are not simultaneous.

$7K net buying - trailing 90 days

2 buyers - 0 unique sellers

Historical context: most recent complete month (2026-09) is the 63rd percentile of this ticker's monthly net P/S flow over 24 complete months. Lower percentiles are more selling; higher are more buying. P10–P90: -$17.1M to $0.

Institutional activity: not available - insufficient comparable institutions for the latest complete quarter.

open-market Form 4 only - grants, exercises, tax withholding excluded. ~ derived from SEC-reported shares x price.

Insider net $ (monthly)open-market Form 4 only - grants, exercises, tax withholding excluded$100.0M$50.0M$0-$50.0M-$100.0M2024-10 $02024-11 $02024-12 $02025-01 $30K2025-02 $02025-03 $02025-04 $02025-05 $02025-06 $02025-07 -$3.6M2025-08 -$22.8M2025-09 -$63.4M2025-10 -$3.7M2025-11 $02025-12 $02026-01 -$30.7M2026-02 $4K2026-03 $2K2026-04 -$2.0M2026-05 $2K2026-06 $2K2026-07 $2K2026-08 $2K2026-09 $2K2026-10 $2KOct 24Dec 24Feb 25Apr 25Jun 25Aug 25Oct 25Dec 25Feb 26Apr 26Jun 26Aug 26Oct 26~ derived from SEC-reported shares x price. Hatched: excluded (implausible price) or unpriced.

Institutional activity: not available - insufficient comparable institutions for the latest complete quarter.

Who is responsible

Insider Role Net activity Rows
Conkling Lori A — ~$5K 2
Conkling Lori A — ~$2K 1

Transactions

Date Insider Role Type Shares Price Value
October 1, 2026 Conkling Lori A — P 25 85.42 ~$2K
September 1, 2026 Conkling Lori A — P 25 94.53 ~$2K
August 3, 2026 Conkling Lori A — P 25 87.03 ~$2K
July 1, 2026 Conkling Lori A — P 25 88.03 ~$2K
June 1, 2026 Conkling Lori A — P 25 86.1 ~$2K
May 1, 2026 Conkling Lori A — P 25 79.64 ~$2K
April 28, 2026 Harris Lawrence E — S -26000 76.93 ~$2.0M
April 1, 2026 Conkling Lori A — P 25 68.38 ~$2K
March 2, 2026 Conkling Lori A — P 25 69.21 ~$2K
February 25, 2026 Conkling Lori A — P 50 73.21 ~$4K
January 27, 2026 Nemser Earl H Vice Chairman 2 reported sale rows 60200 — ~$4.5M
January 26, 2026 Nemser Earl H Vice Chairman 3 reported sale rows 94800 — ~$7.2M
January 23, 2026 Nemser Earl H Vice Chairman 2 reported sale rows 145000 — ~$11.3M
January 22, 2026 Nemser Earl H Vice Chairman S -100000 76.81 ~$7.7M
October 29, 2025 Harris Lawrence E — S -10645 69 ~$0.7M
October 28, 2025 Harris Lawrence E — S -6855 69.15 ~$0.5M
October 27, 2025 Harris Lawrence E — S -7500 69.73 ~$0.5M
October 24, 2025 Harris Lawrence E — S -8000 68.5 ~$0.5M
October 23, 2025 Harris Lawrence E — S -22000 67.63 ~$1.5M
October 23, 2025 Bright Jill — P 400 65.95 ~$26K
September 30, 2025 Brody Paul Jonathan Chief Financial Officer 2 reported sale rows 3134 — ~$0.2M
September 29, 2025 Brody Paul Jonathan Chief Financial Officer 3 reported sale rows 18227 — ~$1.2M
September 26, 2025 Brody Paul Jonathan Chief Financial Officer 2 reported sale rows 17058 — ~$1.1M
September 25, 2025 Brody Paul Jonathan Chief Financial Officer 3 reported sale rows 14296 — ~$0.9M
September 24, 2025 Brody Paul Jonathan Chief Financial Officer 2 reported sale rows 14391 — ~$0.9M
September 23, 2025 Brody Paul Jonathan Chief Financial Officer 2 reported sale rows 19025 — ~$1.2M
September 22, 2025 Brody Paul Jonathan Chief Financial Officer 2 reported sale rows 15202 — ~$1.0M
September 19, 2025 Brody Paul Jonathan Chief Financial Officer 3 reported sale rows 57621 — ~$3.7M
September 18, 2025 Brody Paul Jonathan Chief Financial Officer 3 reported sale rows 116861 — ~$7.6M
September 17, 2025 Brody Paul Jonathan Chief Financial Officer 2 reported sale rows 106521 — ~$6.6M
September 16, 2025 Brody Paul Jonathan Chief Financial Officer 2 reported sale rows 99188 — ~$6.2M
September 15, 2025 Brody Paul Jonathan Chief Financial Officer 3 reported sale rows 96294 — ~$6.1M
September 12, 2025 Brody Paul Jonathan Chief Financial Officer 2 reported sale rows 97209 — ~$6.2M
September 11, 2025 Brody Paul Jonathan Chief Financial Officer 2 reported sale rows 112574 — ~$7.1M
September 10, 2025 Brody Paul Jonathan Chief Financial Officer S -104906 62.51 ~$6.6M
September 9, 2025 Brody Paul Jonathan Chief Financial Officer 2 reported sale rows 107493 — ~$6.7M
August 14, 2025 Nemser Earl H Vice Chairman 2 reported sale rows 53900 — ~$3.4M
August 13, 2025 Nemser Earl H Vice Chairman 3 reported sale rows 7200 — ~$0.5M
August 12, 2025 Nemser Earl H Vice Chairman 2 reported sale rows 194086 — ~$13.1M
August 11, 2025 Nemser Earl H Vice Chairman S -12841 66.09 ~$0.8M
August 8, 2025 Nemser Earl H Vice Chairman 2 reported sale rows 12841 — ~$0.8M
August 7, 2025 Nemser Earl H Vice Chairman 2 reported sale rows 12841 — ~$0.8M
August 6, 2025 Nemser Earl H Vice Chairman 2 reported sale rows 12841 — ~$0.8M
August 5, 2025 Nemser Earl H Vice Chairman 2 reported sale rows 12841 — ~$0.8M
August 4, 2025 Nemser Earl H Vice Chairman S -12841 64.54 ~$0.8M
August 1, 2025 Nemser Earl H Vice Chairman 4 reported sale rows 12841 — ~$0.8M
July 31, 2025 Nemser Earl H Vice Chairman 2 reported sale rows 14641 — ~$1.0M
July 30, 2025 Nemser Earl H Vice Chairman 2 reported sale rows 39786 — ~$2.6M
July 28, 2025 Nemser Earl H Vice Chairman S -100 65.9 ~$7K
January 31, 2025 Bright Jill — P 135 219.51 ~$30K