Insider trade

Chair sold ~$4.62M of IBKR shares in the open market

Traded Jan 26, 2026 · Filed Jan 28, 2026

Interactive BrokersIBKR

~$4.62M
Reported value · 61K sh @ $75.83: 94K
Holds after · shares reported: +13.9%
stock since the trade · S&P 500 +10.3%, $75.35 → $85.81 on Oct 1

Why it stands out

Interactive Brokers's Vice Chairman sold $4.62M of Interactive Brokers shares. Nobody planned it ahead of time.

Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell

View the official recordSEC Form 4 — Statement of Changes in Beneficial Ownership

All the details

Dates, kept separate

Transaction date: Jan 26, 2026
Reporting period: Not applicable
Filed with the SEC: Jan 28, 2026

ChairIndirect holding$1M+

Context

Classification

open market sale

Code S — open-market or private sale

Absolute commitment

~$4,616,682

Shares × reported transaction price

Timing vs results

6 days after results of Jan 20, 2026, 85 days before results of Apr 21, 2026

Results dates are the company's own 8-K (Item 2.02). Many companies only let insiders trade in a window after results

Price at the time

Closed at $75.35 on Jan 26, 2026, within 3% of its 52-week high, after a 13% rise over the previous 30 trading days

52-week range $36.0725 (Apr 7, 2025) to $77.58 (Jan 23, 2026), 95% of the way up, from 251 adjusted closes. 30 trading days earlier: $66.67 on Dec 10, 2025. Describes the past only, not a forecast

Planned / mechanical clue

None found in footnotes

Only flagged when a footnote says so; never inferred

Securities lawsuit open at the trade date

A securities lawsuit naming the company as a defendant was filed on Oct 15, 2025 in the U.S. District Court, S.D. New York. A filing is an allegation, not a finding.

XDOOD LLC v. Interactive Brokers Group, Inc., docket 1:25-cv-08536, via CourtListener (court records). Nature of suit 850, company named as first defendant

After it was reported

After	Stock	S&P 500	Difference
7 days	-8.2%	-2.4%	-5.8%
30 days	-5.3%	-1.1%	-4.2%
90 days	+1.8%	+2.5%	-0.7%
180 days	+20.2%	+6.8%	+13.4%

Past results only. Not a forecast.

Source receipt

Record ID: 0001381197-26-000058
Filed / recorded: Jan 28, 2026, 9:05 PM UTC
Added to OQRO: Oct 2, 2026, 12:28 PM UTC
Parser: form4-xml-v1
Data quality: Verified: identifiers matched exactly
Issuer: Interactive Brokers Group, Inc.
Issuer CIK: 1381197
Ticker: IBKR
Reporting person: Earl H Nemser
Relationship: Director, Officer
Officer title: Vice Chairman
Security: Class A common stock
Table: Non-derivative (Table I)
Transaction date: Jan 26, 2026
Transaction code: S
Shares / units: 60,882
Price per share: $75.83
Acquired / disposed: Disposed (D)
Shares owned after: 94,118
Ownership form: Indirect — by EN Holdings LLC
Amendment: No

Footnotes from the filing

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $75.46 to $76.45. The Reporting Person undertakes to provide Interactive Brokers Group, Inc. (the "Company"), any security holder of the Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each price within the ranges set forth in footnotes (2) - (4) to this Form 4.
Represents number of securities owned by EN Holdings LLC, which is owned by the Reporting Person and his affiliates.