Interactive Brokers (NASDAQ: IBKR) director buys 25 shares

Rhea-AI Filing Summary

Interactive Brokers Group, Inc. director Lori A. Conkling bought 25 shares of Class A common stock in an open-market purchase. She paid $68.38 per share on this transaction. After the purchase, she directly owns 2,434 shares, a total that includes vested and unvested restricted stock units awarded under the company’s 2007 Stock Incentive Plan.

Insider Trade Summary 10b5-1

Net Buyer: 25 shares ($1,710)

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	$68.38	$2K

Holdings After Transaction: Class A common stock — 2,434 shares (Direct)

Footnotes (1)

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Key Figures

Shares purchased: 25 shares Purchase price: $68.38 per share Total shares after transaction: 2,434 shares

3 metrics

Shares purchased 25 shares Open-market buy on 2026-04-01

Purchase price $68.38 per share Open-market transaction

Total shares after transaction 2,434 shares Direct holdings including vested and unvested RSUs

Key Terms

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

3 terms

open-market purchase financial

"transaction_action: "open-market purchase""

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

"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

"awarded under the 2007 Stock Incentive Plan as amended"

Form 4 Insider Transactions: What Each Field Means →

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)
04/01/2026

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	04/01/2026		P		25	A	$68.38	2,434(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/ Matthew Kelly as authorized signatory for Lori A Conkling	04/02/2026
	** 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)

FAQ

What did Interactive Brokers (IBKR) director Lori Conkling report on this Form 4?

Director Lori A. Conkling reported buying 25 shares of Interactive Brokers Class A common stock. The open-market purchase was made at $68.38 per share and increased her direct holdings to 2,434 shares, including vested and unvested restricted stock units under the 2007 Stock Incentive Plan.

How many Interactive Brokers (IBKR) shares did Lori Conkling buy and at what price?

Lori A. Conkling bought 25 shares of Interactive Brokers Class A common stock. The shares were purchased in an open-market transaction at a price of $68.38 per share, as disclosed in the Form 4 insider trading report filed for this transaction.

What is Lori Conkling’s total Interactive Brokers (IBKR) share ownership after this trade?

After the 25-share purchase, Lori A. Conkling directly holds 2,434 Interactive Brokers Class A shares. This total includes shares acquired previously, vested restricted stock units, and unvested restricted stock units granted under the company’s 2007 Stock Incentive Plan, as described in the filing footnote.

Were derivatives or options involved in Lori Conkling’s Interactive Brokers (IBKR) Form 4?

No derivatives or stock options are shown as part of Lori Conkling’s reported transaction. The Form 4 reflects only a non-derivative open-market purchase of 25 Class A common shares, and the derivative summary section indicates no remaining derivative positions in this particular disclosure.

How are restricted stock units reflected in Lori Conkling’s Interactive Brokers (IBKR) holdings?

Her reported total of 2,434 shares includes vested and unvested restricted stock units. The footnote explains these units were granted under Interactive Brokers’ 2007 Stock Incentive Plan and are counted together with shares she has acquired, giving a combined picture of her equity exposure.