0000935836-26-000517.txt : 20260930 0000935836-26-000517.hdr.sgml : 20260930 20260930124603 ACCESSION NUMBER: 0000935836-26-000517 CONFORMED SUBMISSION TYPE: D/A 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)(7) FILED AS OF DATE: 20260930 DATE AS OF CHANGE: 20260930 EFFECTIVENESS DATE: 20260930 FILER: COMPANY DATA: COMPANY CONFORMED NAME: EcoR1 Capital Offshore Fund, Ltd. CENTRAL INDEX KEY: 0001710180 ORGANIZATION NAME: EIN: 000000000 STATE OF INCORPORATION: E9 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D/A SEC ACT: 1933 Act SEC FILE NUMBER: 021-289340 FILM NUMBER: 261426362 BUSINESS ADDRESS: STREET 1: STONE COAST FUND SRVS LTD., C/O WALKERS STREET 2: 190 ELGIN AVENUE CITY: GEORGE TOWN, GRAND CAYMAN STATE: E9 ZIP: KY1-9008 BUSINESS PHONE: 345-769-2680 MAIL ADDRESS: STREET 1: STONE COAST FUND SRVS LTD., C/O WALKERS STREET 2: 190 ELGIN AVENUE CITY: GEORGE TOWN, GRAND CAYMAN STATE: E9 ZIP: KY1-9008 D/A 1 primary_doc.xml X0708 D/A LIVE 0001710180 EcoR1 Capital Offshore Fund, Ltd. STONE COAST FUND SRVS LTD., C/O WALKERS 190 ELGIN AVENUE GEORGE TOWN, GRAND CAYMAN E9 CAYMAN ISLANDS KY1-9008 (345) 769-2680 CAYMAN ISLANDS None None Other Cayman Islands Exempted Company true Brian Burkholder c/o Globus Governance 45 Market St, Gardenia Court, Camana Bay Grand Cayman E9 CAYMAN ISLANDS KY1-1104 Director Tim Woolaver c/o International Mgmt Services Ltd. 4th Fl Harbour Centre, North Church St. Grand Cayman E9 CAYMAN ISLANDS KY1-1102 Director Pooled Investment Fund Hedge Fund false Decline to Disclose 06b 3C 3C.7 true 0000935836-25-000317 2017-07-01 true true true true Redeemable Shares false 25000000 Indefinite 812227522 Indefinite false 76 0 true 0 true 0 true None, although the investment adviser of the issuer receives investment management fees and performance allocations. false EcoR1 Capital Offshore Fund, Ltd. Tim Woolaver Tim Woolaver Director 2026-09-30