XML 86 R73.htm IDEA: XBRL DOCUMENT
v3.25.2

Insider Trading Arrangements (Details) | 3 Months Ended
--- | ---
Jun. 30, 2025 shares
Insider Trading Arrangements [Line Items] |
Material Terms of Trading Arrangement [Text Block] | Rule 10b5-1 Trading Plans The following table discloses the adoption of Rule 10b5-1 trading plans for the sale of shares of our common stock by our directors and officers (as defined in Rule 16a-1(f) under the Securities Exchange Act of 1934, as amended) during the three months ended June 30, 2025, each of which is intended to satisfy the affirmative defense conditions of Rule 10b-51(c) under the Exchange Act.
Name |  | Title |  | Plan Adoption and/or Termination |  | Plan Adoption Date |  | Plan Expiration Date |  | Purchase or Sale |  | Aggregate Number of IBKR shares to be Sold |
Thomas Peterffy |  | Chairman of the Board of Directors |  | Adoption |  | April 25, 2025 |  | See 1 below |  | Sale |  | 6,064,728 2 |
Paul Brody |  | Chief Financial Officer, Treasurer and Secretary |  | Adoption |  | June 9, 2025 |  | September 2, 2026 |  | Sale |  | 1,000,000 3 |
________________________ 1.The later of 90 days or two days after the Company’s filing of its Form 10-Q for the quarter ended September 30, 2025, or upon the earlier completion of all authorized transactions under the plan. 2.Shares held through Conyers Investments LLC, which is indirectly wholly owned by Thomas Peterffy. Mr. Peterffy is also a manager of Conyers Investments LLC with the unilateral power to vote or sell the shares. 3.Shares held through PJB Holdings LLC. Other than as disclosed above, no other director or officer adopted, modified or terminated a contract, instruction or written plan for the purchase or sale of our securities intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) or a “non-Rule 10b5-1 trading arrangement”, as defined in Item 408(c) of Regulation S-K.
Thomas Peterffy [Member] |
Insider Trading Arrangements [Line Items] |
Trading Arrangement, Individual Name | Thomas Peterffy
Trading Arrangement, Individual Title | Chairman of the Board of Directors
Rule 10b5-1 Arrangement Adopted [Flag] | true
Trading Arrangement, Securities Aggregate Available Amount | 6,064,728
Trading Arrangement Adoption Date | April 25, 2025
Paul Brody [Member] |
Insider Trading Arrangements [Line Items] |
Trading Arrangement, Individual Name | Paul Brody
Trading Arrangement, Individual Title | Chief Financial Officer, Treasurer and Secretary
Rule 10b5-1 Arrangement Adopted [Flag] | true
Trading Arrangement, Securities Aggregate Available Amount | 1,000,000
Trading Arrangement Adoption Date | June 9, 2025

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 408 -Subsection a + Details
Name: | ecd_InsiderTradingArrLineItems
Namespace Prefix: | ecd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 408 -Subsection a -Paragraph 1 + Details
Name: | ecd_MtrlTermsOfTrdArrTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 408 -Subsection a -Paragraph 1 + Details
Name: | ecd_Rule10b51ArrAdoptedFlag
Namespace Prefix: | ecd_
Data Type: | xbrli:booleanItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 408 -Subsection a -Paragraph 2 -Subparagraph B + Details
Name: | ecd_TrdArrAdoptionDate
Namespace Prefix: | ecd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 408 -Subsection a -Paragraph 2 -Subparagraph A + Details
Name: | ecd_TrdArrIndName
Namespace Prefix: | ecd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 408 -Subsection a -Paragraph 2 -Subparagraph A + Details
Name: | ecd_TrdArrIndTitle
Namespace Prefix: | ecd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 408 -Subsection a -Paragraph 2 -Subparagraph D + Details
Name: | ecd_TrdArrSecuritiesAggAvailAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ecd_IndividualAxis=ibkr_ThomasPeterffyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_IndividualAxis=ibkr_PaulBrodyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |