Macro Bank (NYSE: BMA) director details initial share and ADS holdings

Rhea-AI Filing Summary

Macro Bank Inc. director Brito Marcos filed an initial Form 3 reporting his ownership in the company. He directly holds 9,816 Class B ordinary shares. Indirectly, through Sanbay S.A., he has a proportionate interest in 24 Class A ordinary shares, 1,010,266 Class B ordinary shares and 1,244 American depositary shares. Each American depositary share represents ten Class B ordinary shares of Banco Macro S.A., and Marcos disclaims beneficial ownership of securities held by Sanbay S.A. beyond his pecuniary interest.

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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

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1. Name and Address of Reporting Person^*

Brito Marcos

(Last) (First) (Middle)

AV. EDUARDO MADERO 1182

(Street)

BUENOS AIRES C1106ACY

(City) (State) (Zip)

ARGENTINA

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
Macro Bank Inc. [ BMA ]

3a. Foreign Trading Symbol
[BMA]

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

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

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

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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Class B ordinary shares	9,816	D
Class A ordinary shares	24	I	By Sanbay S.A.(2)
Class B ordinary shares	1,010,266	I	By Sanbay S.A.(2)
American depositary shares(1)	1,244	I	By Sanbay S.A.(2)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Each American depositary share represents ten (10) Class B ordinary shares of Banco Macro S.A.

2. The reported amount represents the Reporting Person's proportionate interest in securities held by Sanbay S.A. The Reporting Person disclaims beneficial ownership of the securities held by Sanbay S.A. except to the extent of such Reporting Person's pecuniary interest therein.

Remarks:

Exhibit 24 - Power of Attorney

	**/s/ Paola Beatriz Gayoso, as Attorney-in-Fact for Marcos Brito	03/18/2026
	** 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 5 (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 3: SEC 1473 (03-26)

FAQ

What does Macro Bank (BMA) director Brito Marcos report on his Form 3?

Brito Marcos reports his initial ownership position in Macro Bank. He directly holds 9,816 Class B ordinary shares and has an indirect, proportionate interest in additional shares and American depositary shares held through Sanbay S.A..

How many Macro Bank Class B shares does Brito Marcos hold directly and indirectly?

He directly owns 9,816 Class B ordinary shares. Indirectly, through Sanbay S.A., he has a proportionate interest in 1,010,266 Class B ordinary shares, while disclaiming beneficial ownership beyond his pecuniary interest in that entity.

What Macro Bank Class A ordinary share holdings are attributed to Brito Marcos?

The filing shows a proportionate indirect interest in 24 Class A ordinary shares held by Sanbay S.A.. Marcos disclaims beneficial ownership of these securities except to the extent of his pecuniary interest in Sanbay S.A.'s holdings.

What American depositary shares related to Macro Bank does Brito Marcos report?

Marcos has a proportionate indirect interest in 1,244 American depositary shares held by Sanbay S.A.. A footnote explains each American depositary share represents ten Class B ordinary shares of Banco Macro S.A., the underlying issuer.

How is Sanbay S.A. involved in Brito Marcos’s Macro Bank holdings?

Sanbay S.A. holds Macro Bank securities in which Marcos has a proportionate pecuniary interest. The Form 3 attributes indirect holdings to him "By Sanbay S.A." while he expressly disclaims beneficial ownership beyond that pecuniary interest in Sanbay’s portfolio.

Does the Form 3 for Macro Bank (BMA) show any recent insider buying or selling?

The Form 3 reports holdings only, not recent transactions. It lists Marcos’s direct and indirect ownership positions as of the reporting date, with no open-market purchases, sales, exercises, or other disposition events indicated in the summarized data.