MarketAxess director awarded 1,390 RSUs

Altobello Nancy A. reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Altobello Nancy A. reported acquisition or exercise transactions in this Form 4 filing.

MarketAxess Holdings Inc. director Nancy A. Altobello received an equity grant in the form of restricted stock units. On June 10, 2026, she was awarded 1,390 shares of common stock at no cash cost, reflecting stock-based compensation under the company’s 2020 Equity Incentive Plan.

Following this grant, Altobello’s direct holdings increased to 5,152 shares of MarketAxess common stock, indicating a modest rise in her equity stake tied to ongoing service and performance with the company.

Insider Trade Summary

Grant/Award: 1,390 shares

Grant/Award 1 txn

Insider Altobello Nancy A.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock, par value $0.003 per share	1,390	$0.00	$0.00

Holdings After Transaction: Common Stock, par value $0.003 per share — 5,152 shares (Direct)

Footnotes (1)

1. F1. Represents a grant of restricted stock units pursuant to the Company's 2020 Equity Incentive Plan.

Key Figures

RSU grant size: 1,390 shares Grant price: $0.00 per share Post-transaction holdings: 5,152 shares +2 more

5 metrics

RSU grant size 1,390 shares Restricted stock units granted on June 10, 2026

Grant price $0.00 per share Reported transaction price for RSU award

Post-transaction holdings 5,152 shares Total direct common stock held after grant

Transaction code A Grant, award, or other acquisition of common stock

Transaction direction acquire Non-derivative acquisition via equity grant

Key Terms

restricted stock units, 2020 Equity Incentive Plan, Grant, award, or other acquisition, Common Stock, par value $0.003 per share

4 terms

restricted stock units financial

"Represents a grant of restricted stock units pursuant to the Company's 2020 Equity Incentive Plan."

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.

2020 Equity Incentive Plan financial

"Represents a grant of restricted stock units pursuant to the Company's 2020 Equity Incentive Plan."

Grant, award, or other acquisition regulatory

"transaction_code_description: Grant, award, or other acquisition"

Common Stock, par value $0.003 per share financial

"security_title: Common Stock, par value $0.003 per share"

FAQ

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

What insider transaction did MarketAxess (MKTX) report for Nancy A. Altobello?

MarketAxess reported that director Nancy A. Altobello received a grant of 1,390 restricted stock units of common stock. The award was made as stock-based compensation rather than a market purchase, increasing her direct ownership in the company.

How many MarketAxess (MKTX) shares does Nancy A. Altobello hold after this Form 4?

After the reported grant, Nancy A. Altobello directly holds 5,152 shares of MarketAxess common stock. This total includes the newly awarded 1,390 restricted stock units granted under the company’s equity incentive plan on June 10, 2026.

Was the June 10, 2026 MarketAxess (MKTX) insider transaction a stock purchase or a grant?

The June 10, 2026 transaction for MarketAxess director Nancy A. Altobello was a grant/award acquisition, not a market purchase. She received 1,390 restricted stock units at a reported price of $0.00 per share as compensation.

What plan governed Nancy A. Altobello’s restricted stock unit grant at MarketAxess (MKTX)?

The 1,390 restricted stock units granted to Nancy A. Altobello were issued under MarketAxess’s 2020 Equity Incentive Plan. This plan provides share-based compensation to directors and employees, aligning part of their pay with the company’s stock performance.

Does the MarketAxess (MKTX) Form 4 show any insider sales by Nancy A. Altobello?

The Form 4 shows no insider sales by Nancy A. Altobello. It reports only one acquisition transaction, a grant of 1,390 restricted stock units, increasing her direct holdings to 5,152 shares with no disposals listed.

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

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Accepted by SEC EDGAR 06/12/2026 - 04:15 PM 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).

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^*

Altobello Nancy A.

(Last) (First) (Middle)

C/O MARKETAXESS HOLDINGS INC.

55 HUDSON YARDS, 15TH FLOOR

(Street)

NEW YORK NEW YORK 10001

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MARKETAXESS HOLDINGS INC [ MKTX ]

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)
06/10/2026

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
Common Stock, par value $0.003 per share	06/10/2026		A		1,390	A	$0(1)	5,152	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. Represents a grant of restricted stock units pursuant to the Company's 2020 Equity Incentive Plan.

	/s/ Patrick Wilson, as Attorney-in-Fact for Nancy A. Altobello	06/12/2026
	** 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)