Denis Mendonca

CIK: 0001665345

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)2 (50.0%)

Compensation grants

Other (G, F, J, C, D, …)2 (50.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

IBKR

Interactive Brokers Group, Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (4 total)

IBKR
Interactive Brokers Group, Inc.
May 8, 2026
Tax Payment(F)
Direct
11.2K shares at avg. $84.42$942K
IBKR
Interactive Brokers Group, Inc.
Dec 31, 2025
Award(A)
Direct
11.2K shares-
IBKR
Interactive Brokers Group, Inc.
May 9, 2025
Tax Payment(F)
Direct
2.5K shares at avg. $185.60$458K
IBKR
Interactive Brokers Group, Inc.
Dec 31, 2024
Award(A)
Direct
3.7K shares-

		Type	Shares	Price		Ownership
May 8, 2026	IBKR Interactive Brokers Group, Inc.	Tax Payment(F)	11,157	$84.42	$941,874	Direct
Dec 31, 2025	IBKR Interactive Brokers Group, Inc.	Award(A)	11,156	-	$0	Direct
May 9, 2025	IBKR Interactive Brokers Group, Inc.	Tax Payment(F)	2,467	$185.60	$457,875	Direct
Dec 31, 2024	IBKR Interactive Brokers Group, Inc.	Award(A)	3,748	-	$0	Direct

1-4 of 4 transactions

About Mendonca Denis

Mendonca Denis (SEC CIK 0001665345) files insider reports with the SEC as Chief Accounting Officer of Interactive Brokers Group, Inc. (IBKR).

Signal8 holds 4 ownership filings by Mendonca Denis, all Form 4s, filed between Jan 7, 2025 and May 28, 2026. Those filings report 4 transactions, from Dec 31, 2024 to May 8, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Mendonca Denis's filings is in GREENWICH, CT.

Recent filings by Mendonca Denis

May 8, 2026: Tax withholding of IBKR shares (Form 4, code F).
Dec 31, 2025: Grant or award of IBKR shares (Form 4, code A).
May 9, 2025: Tax withholding of IBKR shares (Form 4, code F).
Dec 31, 2024: Grant or award of IBKR shares (Form 4, code A).

Other insiders filing for Interactive Brokers Group, Inc. (IBKR)

Conkling Lori A, Director
Harris Lawrence E, Director
Nemser Earl H, Vice Chairman
Brody Paul Jonathan, Chief Financial Officer
Galik Milan, Chief Executive Officer
Frank Thomas AJ, Executive Vice President

How to read Form 4 transaction codes