Interactive Brokers (IBKR): CFO sold ~$3.64M

~$3.64M

Approx. value · 58K sh @ $62.94

730K

Holds after · shares reported

Traded

Sep 11, 2025

Filed

Sep 15, 2025

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Jun 17, 2025Congress · 1 personMembers of Congress: 2 purchases
2. Jun 24, 2025Congress · 1 personMembers of Congress: 2 sales
3. Jul 28, 2025InsiderChair sold ~$6.6K of IBKR shares in the open market
4. Jul 30, 2025Insider · 1 personInsiders: 2 sales (~$2.6M)
5. Jul 31, 2025Insider · 1 personInsiders: 2 sales (~$970K)
6. Aug 1, 2025Insider · 1 personInsiders: 4 sales (~$824K)
7. Aug 4, 2025InsiderChair sold ~$829K of IBKR shares in the open market
8. Aug 5, 2025Insider · 1 personInsiders: 2 sales (~$819K)
9. Aug 6, 2025Insider · 1 personInsiders: 2 sales (~$815K)
10. Aug 7, 2025Insider · 1 personInsiders: 2 sales (~$821K)
11. Aug 8, 2025Insider · 1 personInsiders: 2 sales (~$843K)
12. Aug 11, 2025InsiderChair sold ~$849K of IBKR shares in the open market
13. Aug 12, 2025Insider · 1 personInsiders: 2 sales (~$13.1M)
14. Aug 13, 2025Insider · 1 personInsiders: 5 sales (~$493K)
15. Aug 13, 2025Congress · 1 personMembers of Congress: 2 purchases
16. Aug 14, 2025Insider · 1 personInsiders: 2 sales (~$3.4M)
17. Sep 8, 20255% stakeThe Vanguard Group reported a passive stake (13G) of 11.4%
18. Sep 9, 2025Insider · 1 personInsiders: 2 sales (~$6.7M)
19. Sep 10, 2025Insider · Their largest sale since 2013CFO sold ~$6.56M of IBKR shares in the open market
20. Sep 11, 2025 · this disclosureInsiderCFO sold ~$3.64M of IBKR shares in the open market

What came next

1. Sep 11, 2025InsiderCFO sold ~$3.48M of IBKR shares in the open market
2. Sep 12, 2025Insider · 1 personInsiders: 2 sales (~$6.2M)
3. Sep 15, 2025Insider · 1 personInsiders: 3 sales (~$6.1M)
4. Sep 16, 2025Insider · 1 personInsiders: 2 sales (~$6.2M)
5. Sep 17, 2025Insider · 1 personInsiders: 2 sales (~$6.6M)
6. Sep 18, 2025Insider · 1 personInsiders: 3 sales (~$7.6M)
7. Sep 19, 2025InsiderCFO sold ~$448K of IBKR shares in the open market
8. Sep 23, 2025Insider · 1 personInsiders: 2 sales (~$1.2M)
9. Sep 24, 2025Insider · 1 personInsiders: 2 sales (~$933K)
10. Sep 25, 2025Insider · 1 personInsiders: 3 sales (~$927K)
11. Sep 26, 2025Insider · 1 personInsiders: 2 sales (~$1.1M)
12. Oct 14, 2025CongressDisclosed sale of IBKR — reported range $1,001 - $15,000
13. Oct 15, 2025Court · District Court, S.D. New YorkSecurities lawsuit filed: XDOOD LLC v. Interactive Brokers Group, Inc.
14. Oct 16, 2025Company filing · Form 8-K · ResultsReported its results
15. Oct 17, 20255% stakeBlackRock, Inc. reported a passive stake (13G) of 6.2%
16. Oct 23, 2025Insider · 2 peopleInsiders: 1 purchase (~$26K), 1 sale (~$1.5M)
17. Oct 24, 2025InsiderDirector sold ~$548K of IBKR shares in the open market
18. Oct 27, 2025InsiderDirector sold ~$523K of IBKR shares in the open market
19. Oct 28, 2025InsiderDirector sold ~$474K of IBKR shares in the open market
20. Oct 29, 2025InsiderDirector sold ~$735K of IBKR shares in the open market

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Interactive Brokers

For Interactive Brokers, OQRO holds 4 insider filings (SEC Form 4 or Form 144) and 1 fund holdings report (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its IBKR page.

Other recent filings by Paul Jonathan Brody, Chief Financial Officer

• SEC Form 4 at Interactive Brokers (IBKR)Oct 3, 2025
• SEC Form 4 at Interactive Brokers (IBKR)Sep 29, 2025
• SEC Form 4 at Interactive Brokers (IBKR)Sep 29, 2025
• SEC Form 4 at Interactive Brokers (IBKR)Sep 29, 2025
• SEC Form 4 at Interactive Brokers (IBKR)Sep 29, 2025

The full history of Paul Jonathan Brody, Chief Financial Officer is on the profile page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Interactive Brokers

• SEC Form 13F-HRNov 13, 2026
• SEC Form 4Nov 3, 2026
• SEC Form 4Oct 29, 2026
• SEC Form 4Oct 6, 2026
• SEC Form 4Sep 2, 2026
• SEC Form 13F-HRAug 14, 2026

Everything OQRO holds on this company is on its IBKR page.