0002141734-26-000001.txt : 20260623 0002141734-26-000001.hdr.sgml : 20260623 20260622181328 ACCESSION NUMBER: 0002141734-26-000001 CONFORMED SUBMISSION TYPE: D PUBLIC DOCUMENT COUNT: 1 ITEM INFORMATION: Rule 506(b) provides a "safer harbor" for a private offering ITEM INFORMATION: Investment Company Act Section 3(c) ITEM INFORMATION: Section 3(c)(1) FILED AS OF DATE: 20260623 DATE AS OF CHANGE: 20260622 EFFECTIVENESS DATE: 20260623 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Thirdbase Opportunity LP - Series ER III CENTRAL INDEX KEY: 0002141734 ORGANIZATION NAME: EIN: 422860430 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D SEC ACT: 1933 Act SEC FILE NUMBER: 021-588167 FILM NUMBER: 261108310 BUSINESS ADDRESS: STREET 1: 535 W 23RD STREET STREET 2: UNIT SPH1P CITY: NEW YORK STATE: NY ZIP: 10011 BUSINESS PHONE: 7169810061 MAIL ADDRESS: STREET 1: 535 W 23RD STREET STREET 2: UNIT SPH1P CITY: NEW YORK STATE: NY ZIP: 10011 D 1 primary_doc.xml X0708 D LIVE 0002141734 Thirdbase Opportunity LP - Series ER III 535 W 23RD STREET UNIT SPH1P NEW YORK NY NEW YORK 10011 7169810061 DELAWARE None None Limited Partnership true 2026 Abhinav Gupta 535 W 23rd Street Unit SPH1P New York NY NEW YORK 10011 Executive Officer Promoter Managing Member of the General Partner of the Issuer n/a Thirdbase Capital GP, LLC 535 W 23rd Street Unit SPH1P New York NY NEW YORK 10011 Promoter General Partner of the Issuer Pooled Investment Fund Private Equity Fund false Decline to Disclose 06b 3C 3C.1 false 2026-06-09 false true false 100000 31000000 31000000 0 false 3 0 0 0 false Thirdbase Opportunity LP - Series ER III /s/ Abhinav Gupta Abhinav Gupta Managing Member of the General Partner of the Issuer 2026-06-22