Gerdau officer reports initial RSU and share holdings

GERDAU S.A. officer Peres Cesar Obino da Rosa filed an initial statement of holdings, detailing both restricted stock units (RSUs) and preferred shares.

Rhea-AI Filing Summary

GERDAU S.A. officer Peres Cesar Obino da Rosa filed an initial statement of holdings, detailing both restricted stock units (RSUs) and preferred shares. He holds RSUs tied to 4,060 preferred shares at an exercise price of R$19.5000 vesting on February 12, 2027, 4,987 preferred shares at R$18.3200 vesting on February 12, 2028, and 5,263 preferred shares at R$20.8300 vesting on February 12, 2029. He also directly holds 8,008 preferred shares. The filing does not show any new purchases or sales, only existing equity awards and share ownership.

Insider Trade Summary

4 transactions reported

Mixed 4 txns

Insider Peres Cesar Obino da Rosa

Role Officer

Type	Security	Shares	Price	Value
holding	Restricted Stock Units	--	--	--
holding	Restricted Stock Units	--	--	--
holding	Restricted Stock Units	--	--	--
holding	Preferred shares	--	--	--

Holdings After Transaction: Restricted Stock Units — 14,310 contracts (Direct); Preferred shares — 8,008 shares (Direct)

Footnotes (3)

1. F1. Restricted stock units vest on February 12, 2027. Exercise price denominated in Brazilian reais (R$).
2. F2. Restricted stock units vest on February 12, 2028. Exercise price denominated in Brazilian reais (R$).
3. F3. Restricted stock units vest on February 12, 2029. Exercise price denominated in Brazilian reais (R$).

FAQ

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

What does the Gerdau (GGB) insider Peres Cesar Obino da Rosa report in this ownership filing?

He reports existing equity holdings, not new trades. The filing lists restricted stock units linked to specific preferred share amounts and vesting dates, plus 8,008 directly held preferred shares, giving investors a clear view of his current stake in Gerdau.

How many Gerdau (GGB) preferred shares underlie the officer’s restricted stock units?

The RSUs are linked to 4,060, 4,987, and 5,263 preferred shares. Each block has its own exercise price in Brazilian reais and a distinct vesting date, outlining a staggered equity incentive schedule for the officer over several future years.

When do the Gerdau (GGB) officer’s restricted stock units vest?

The RSUs vest on February 12, 2027, February 12, 2028, and February 12, 2029. These dates correspond to three separate RSU awards, each tied to a defined number of underlying preferred shares and exercise prices denominated in Brazilian reais.

Did the Gerdau (GGB) officer buy or sell shares in this insider ownership report?

No transactions are shown as buys or sells in this report. The entries are classified as holdings, indicating existing restricted stock units and directly owned preferred shares, rather than new open-market purchases, sales, or option exercises by the reporting officer.

How many Gerdau (GGB) preferred shares does the officer hold directly?

He directly holds 8,008 preferred shares. This position sits alongside his restricted stock units, which, if vested and exercised in the future, could convert into additional preferred shares according to the specific underlying share amounts disclosed.

What currency are the exercise prices for the Gerdau (GGB) restricted stock units denominated in?

The exercise prices for the restricted stock units are denominated in Brazilian reais, noted as R$. This reflects Gerdau’s home market currency and indicates that any eventual exercise of these RSUs would reference values in Brazilian currency rather than U.S. dollars.

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

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Accepted by SEC EDGAR 03/18/2026 - 09:19 PM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Peres Cesar Obino da Rosa

(Last) (First) (Middle)

AVENUE DOUTORA RUTH DE CARDOSO, 8501

8TH FLOOR, PINHEIROS

(Street)

SAO PAULO SAO PAULO 05425-070

(City) (State) (Zip)

BRAZIL

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/17/2026

3. Issuer Name and Ticker or Trading Symbol
GERDAU S.A. [ GGB ]

3a. Foreign Trading Symbol
[GGBR]

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

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

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

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)
Preferred shares	8,008	D

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
Restricted Stock Units	(1)	02/12/2027	Preferred shares	4,060	$19.5	D
Restricted Stock Units	(2)	02/12/2028	Preferred shares	4,987	$18.32	D
Restricted Stock Units	(3)	02/12/2029	Preferred shares	5,263	$20.83	D

Explanation of Responses:

1. Restricted stock units vest on February 12, 2027. Exercise price denominated in Brazilian reais (R$).

2. Restricted stock units vest on February 12, 2028. Exercise price denominated in Brazilian reais (R$).

3. Restricted stock units vest on February 12, 2029. Exercise price denominated in Brazilian reais (R$).

	Cesar Obino da Rosa Peres	03/17/2026
	** 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)