Please wait



Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Checkbox not checked   Rule 13d-1(b)
Checkbox not checked   Rule 13d-1(c)
Checkbox not checked   Rule 13d-1(d)


SCHEDULE 13D/A 0001881188 XXXXXXXX LIVE 6 Class A ordinary shares, par value $0.0001 per share 12/14/2025 false 0001848763 G7500M104 ReNew Energy Global plc C/O Vistra (UK) Ltd Suite 3 7th Floor 50 Broadway London X0 SW1H 0DB Sumant Sinha (91) 124 489 6670 Commercial Block-1, Zone 6, Golf Course DLF City Phase-V Gurugram K7 122009 0001881188 N Sumant Sinha a AF N K7 44113497.00 11437641.00 44113497.00 11437641.00 55551138 N 18.51 IN Y Cognisa Investment a AF N K7 0.00 6498328.00 0.00 6498328.00 6498328.00 N 2.6 PN Y Wisemore Advisory Private Limited a AF N K7 0.00 4939313.00 0.00 4939313.00 4939313.00 N 2.0 CO Class A ordinary shares, par value $0.0001 per share ReNew Energy Global plc C/O Vistra (UK) Ltd Suite 3 7th Floor 50 Broadway London X0 SW1H 0DB This Amendment No. 6 (the "Amendment No. 6") is being filed by the undersigned, pursuant to 240.13d-2(a), to amend and supplement the Schedule 13D filed with the U.S. Securities and Exchange Commission (the "SEC") Item 1 Comment: by the Reporting Persons on September 2, 2021, as amended and supplemented on November 21, 2022, November 30, 2023, December 10, 2024, July 2, 2025 and October 10, 2025 (the "Original Schedule 13D") and as further amended and supplemented by this Amendment No. 6 to the Original Schedule 13D (collectively, the "Schedule 13D"). Except as specifically provided herein, this Amendment No. 6 does not modify any of the information previously reported on the Original Schedule 13D. Capitalized terms not otherwise defined in this Amendment No. 6 shall have the same meanings ascribed thereto in the Original Schedule 13D. This Amendment amends and supplements Item 4 of the Original Schedule 13D by adding the following: On December 14, 2025, Masdar confirmed to the other Consortium members that it has withdrawn from the Consortium. As a result, the Consortium will no longer pursue the Proposed Transaction. This Amendment No. 6 amends and restates Item 5 of the Original Schedule 13D in its entirety as follows: As of the date hereof, Cognisa Investment is the record holder of 6,498,328 Class A ordinary shares, nominal value of $0.0001 (the "Shares"), of ReNew Energy Global plc, a public limited company incorporated in England and Wales (the "Issuer"). Based on 244,405,376 Shares (excluding treasury shares) of the Issuer outstanding as of March 31, 2025, as reported by the Issuer in its Annual Report on Form 20-F filed with the SEC on July 30, 2025, Cognisa Investment beneficially owns approximately 2.6% of the outstanding Shares. As of the date hereof, Wisemore Advisory Private Limited is the record holder of 4,939,313 Shares. Based on 244,405,376 Shares (excluding treasury shares) of the Issuer outstanding as of March 31, 2025, as reported by the Issuer in its Annual Report on Form 20-F filed with the SEC on July 30, 2025, Wisemore Advisory Private Limited beneficially owns approximately 2.0% of the outstanding Shares. As of the date hereof, Mr. Sinha is the record holder of one Class B Ordinary Share, which represents voting rights equal to (i) 82 Shares that would have been issued to Mr. Sinha and his affiliates if Mr. Sinha and his affiliates had exchanged their existing ordinary shares in ReNew India that they hold at the relevant time for Shares at an exchange ratio of 1-to-0.8289, (ii) 6,498,328 Shares that would have been issued to Cognisa and its affiliates if Cognisa and its affiliates had exchanged their existing ordinary shares in ReNew India that they hold at the relevant time for Shares at an exchange ratio of 1-to-0.8289, and (iii) 4,939,313 Shares that would have been issued to Wisemore and its affiliates if Wisemore and its affiliates had exchanged their existing ordinary shares in ReNew India that they hold at the relevant time for Shares at an exchange ratio of 1-to-0.8289. Cognisa and Wisemore are directly owned and controlled by Mr. Sinha. As a result, Mr. Sinha may be deemed to share beneficial ownership over the securities held by each of Cognisa and Wisemore. In addition, Mr. Sinha is the record holder of 44,113,497 Shares issuable upon the exercise of options held by Mr. Sinha that were exercisable within 60 days from the date hereof. Based on an aggregate of 299,956,514, comprising of 244,405,376 Shares (excluding treasury shares) outstanding as of March 31, 2025, 11,437,641 Shares that would have been issued to Mr. Sinha and his affiliates if Mr. Sinha and his affiliates had exchanged their existing ordinary shares in ReNew India that they hold at the relevant time for Shares at an exchange ratio of 1- to-0.8289 and the 44,113,415 Shares issuable to Mr. Sinha upon the exercise of options held by Mr. Sinha that were exercisable within 60 days from the date hereof, Mr. Sinha beneficially owns approximately 18.51% of the outstanding Shares. Items 7 through 11 and 13 of the cover pages of this Amendment No. 6 are hereby incorporated by reference. Items 7 through 11 and 13 of the cover pages of this Amendment No. 6 are hereby incorporated by reference. Except as described in this Schedule 13D, neither the Reporting Persons nor, to the Reporting Persons' knowledge, any Covered Person has effected any transactions in the Shares during the past 60 days. None. Not applicable. This Amendment amends and supplements Item 6 of the Original Schedule 13D by adding the following: On December 10, 2025, the Consortium Bid Conduct Agreement expired in accordance with its terms. Sumant Sinha /s/ Sumant Sinha Sumant Sinha, in person capacity 12/15/2025 Cognisa Investment /s/ Sumant Sinha Sumant Sinha, Partner 12/15/2025 Wisemore Advisory Private Limited /s/ Sumant Sinha Sumant Sinha, Director 12/15/2025