[Form 3] ReNew Energy Global plc Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

ReNew Energy Global plc officer Varghese Sanjay Chacko has filed an initial ownership report showing his stake in the company. He reports 72,165 Class A Ordinary Shares held directly and 715,958 shares held indirectly through an ESOP. The position includes 22,624 vested restricted stock units (RSUs) and 49,531 unvested RSUs. These RSUs were granted on September 13, 2023, April 1, 2024, and April 1, 2025, and each award vests 33% on the first and second anniversaries of its grant date and 34% on the third anniversary, subject to continued service. The filing does not reflect new buying or selling activity but establishes his beneficial holdings and vesting schedule.

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^*

Varghese Sanjay Chacko

(Last) (First) (Middle)

C/O VISTRA (UK) LTD

SUITE 3, 7TH FLOOR, 50 BROADWAY

(Street)

LONDON SW1H 0DB

(City) (State) (Zip)

UNITED KINGDOM

(Country)

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

3. Issuer Name and Ticker or Trading Symbol
ReNew Energy Global plc [ RNW ]

3a. Foreign Trading Symbol

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)
	See below Remarks (a)

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 A Ordinary Shares	72,165(1)	D
Class A Ordinary Shares	715,958	I	By ESOP

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. Includes 22,624 vested restricted stock units ("RSUs") and 49,531 unvested RSUs. Each RSU represents a contingent right to receive one share of the Issuer's Class A Ordinary Shares. The RSUs were awarded on the following dates (each, a "Grant Date"): September 13, 2023 (22,104 RSUs awarded), April 1, 2024 (24,382 RSUs awarded) and April 1, 2025 (25,679 RSUs awarded). The vesting schedule for each of the foregoing awards, subject to the Reporting Person's continuous service through such dates, is 33% on each of the first and second anniversaries of the Grant Date, and 34% on the third anniversary of the Grant Date.

Remarks:

(a) The Reporting Person is Group President, Projects & Solar Manufacturing. Exhibit 24.1 - Power of Attorney

	/s/ Sanjay Chacko Varghese	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.
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* Form 3: SEC 1473 (03-26)