Interactive Brokers director buys 25 shares

Interactive Brokers Group, Inc. director Lori A. Conkling reported an open-market purchase of 25 shares of Class A common stock at $86.10 per share.

Rhea-AI Filing Summary

Interactive Brokers Group, Inc. director Lori A. Conkling reported an open-market purchase of 25 shares of Class A common stock at $86.10 per share. After this transaction, she directly owns 2,484 shares. A footnote explains that this amount also reflects vested and unvested restricted stock units granted under the company’s 2007 Stock Incentive Plan.

Insider Trade Summary 10b5-1

Net Buyer: 25 shares

Net Buy 1 txn

Insider Conkling Lori A

Role Director

Bought 25 shs ($2K)

Type	Security	Shares	Price	Value
Purchase	Class A common stock	25	$86.10	$2K

Holdings After Transaction: Class A common stock — 2,484 shares (Direct)

Footnotes (1)

1. F1. This amount includes (a) securities acquired by the Reporting Person; (b) Class A common stock attributable to vested restricted stock units that were awarded under the 2007 Stock Incentive Plan as amended ("Plan"); and (c) unvested restricted stock units that were awarded under the Plan.

Key Figures

Shares purchased: 25 shares Purchase price: $86.10 per share Shares owned after transaction: 2,484 shares +2 more

5 metrics

Shares purchased 25 shares Open-market purchase of Class A common stock

Purchase price $86.10 per share Price for the 25-share open-market transaction

Shares owned after transaction 2,484 shares Direct ownership following the reported purchase

Net buy shares 25 shares Net effect across all reported transactions on the Form 4

Buy transactions 1 transaction Number of buy entries in the filing

Key Terms

open-market purchase, restricted stock units, 2007 Stock Incentive Plan, Class A common stock

4 terms

open-market purchase financial

"The Form 4 describes it as an open-market acquisition of 25 shares"

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

restricted stock units financial

"includes Class A common stock attributable to vested restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

2007 Stock Incentive Plan financial

"restricted stock units that were awarded under the 2007 Stock Incentive Plan"

Class A common stock financial

"open-market purchase of 25 shares of Class A common stock"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did IBKR director Lori Conkling report?

Lori A. Conkling, a director of Interactive Brokers Group, reported buying 25 shares of Class A common stock. The shares were purchased in an open-market transaction at a price of $86.10 per share, according to the Form 4 filing.

At what price did the IBKR director buy Interactive Brokers shares?

The Interactive Brokers director bought the shares at $86.10 per share. This price comes from an open-market purchase of 25 shares of Class A common stock disclosed in the Form 4 insider trading report for Lori A. Conkling.

How many Interactive Brokers shares does Lori Conkling hold after this Form 4?

Following the reported transaction, Lori A. Conkling directly holds 2,484 shares of Interactive Brokers Class A common stock. This total also reflects vested and unvested restricted stock units granted under the company’s 2007 Stock Incentive Plan, as noted in a footnote.

What does the IBKR Form 4 say about restricted stock units for Lori Conkling?

The filing explains that the 2,484-share figure includes Class A common stock from vested restricted stock units and unvested restricted stock units awarded under Interactive Brokers’ 2007 Stock Incentive Plan, in addition to the securities directly acquired in the reported open-market purchase.

Is the IBKR director’s transaction on this Form 4 a purchase or sale?

The transaction is a purchase. The Form 4 describes it as an open-market acquisition of 25 shares of Interactive Brokers Class A common stock by director Lori A. Conkling, using transaction code “P” for a buy in the non-derivative securities section.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/02/2026 - 04:09 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Conkling Lori A

(Last) (First) (Middle)

ONE PICKWICK PLAZA

(Street)

GREENWICH CONNECTICUT 06830

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Interactive Brokers Group, Inc. [ IBKR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A common stock	06/01/2026		P		25	A	$86.1	2,484(1)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This amount includes (a) securities acquired by the Reporting Person; (b) Class A common stock attributable to vested restricted stock units that were awarded under the 2007 Stock Incentive Plan as amended ("Plan"); and (c) unvested restricted stock units that were awarded under the Plan.

	/s/ Arthur Frye as authorized signatory for Lori A Conkling	06/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)