[Form 4] MARKETAXESS HOLDINGS INC Insider Trading Activity

Rhea-AI Filing Summary

Dean Berry, Group COO & CEO, EMEA & APAC of MarketAxess Holdings Inc. (MKTX), was granted 26,017 restricted stock units on 10/01/2025. The grant is reported as a non‑cash award with a grant price of $0 and is scheduled to vest in three substantially equal installments on 10/01/2026, 10/01/2027, and 10/01/2028. Following the reported transaction, the filing shows 26,017 shares beneficially owned. The Form 4 was signed on behalf of Mr. Berry by an attorney‑in‑fact and dated 10/02/2025. The filing reflects an equity compensation grant under the company’s 2020 Equity Incentive Plan.

Positive

• 26,017 restricted stock units granted to Dean Berry on 10/01/2025
• RSUs vest in three substantially equal installments on 10/01/2026, 10/01/2027, and 10/01/2028
• Grant reported under the company’s 2020 Equity Incentive Plan

Negative

• None.

Insights

Equity Compensation Analyst

Grant of 26,017 RSUs to a senior executive with multi‑year vesting.

The filing documents a grant of 26,017 restricted stock units to Dean Berry on 10/01/2025 under the 2020 Equity Incentive Plan. The award vests in three substantially equal annual installments on 10/01/2026, 10/01/2027, and 10/01/2028, which creates multi‑year earned equity rather than an immediate cash payout.

The grant is recorded at a $0 price (non‑cash equity grant) and results in reported beneficial ownership of 26,017 shares after the transaction. This is a routine disclosure of an equity award to an officer; no other transactions or dispositions are disclosed.

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

1. Name and Address of Reporting Person^*

Berry Dean

(Last) (First) (Middle)

C/O MARKETAXESS HOLDINGS INC.

55 HUDSON YARDS, 15TH FLOOR

(Street)

NEW YORK NY 10001

(City) (State) (Zip)

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

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Group COO & CEO, EMEA & APAC

3. Date of Earliest Transaction (Month/Day/Year)
10/01/2025

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

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

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

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	10/01/2025		A		26,017	A	$0(1)	26,017	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. The restricted stock units shall vest in three substantially equal installments on October 1, 2026, October 1, 2027, and October 1, 2028.

	/s/ Patrick Wilson, as Attorney-in-Fact for Dean Berry	10/02/2025
	** 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.

FAQ

What did Dean Berry report on Form 4 for MKTX?

The Form 4 reports a grant of 26,017 restricted stock units to Dean Berry on 10/01/2025 under the 2020 Equity Incentive Plan.

When do the restricted stock units granted to Dean Berry vest?

The restricted stock units vest in three substantially equal installments on 10/01/2026, 10/01/2027, and 10/01/2028.

What price was reported for the RSU grant?

The grant is reported with a price of $0, indicating a non‑cash restricted stock unit award.

How many shares does Dean Berry beneficially own after the transaction?

The filing shows beneficial ownership of 26,017 shares following the reported transaction.

Who signed the Form 4 filing for Dean Berry and when?

The document is signed by Patrick Wilson, as Attorney‑in‑Fact for Dean Berry and dated 10/02/2025.