<SEC-DOCUMENT>0001999371-24-003018-index.html : 20240304 <SEC-HEADER>0001999371-24-003018.hdr.sgml : 20240304 <ACCEPTANCE-DATETIME>20240304105513 ACCESSION NUMBER: 0001999371-24-003018 CONFORMED SUBMISSION TYPE: DEF 14A PUBLIC DOCUMENT COUNT: 4 CONFORMED PERIOD OF REPORT: 20240417 FILED AS OF DATE: 20240304 DATE AS OF CHANGE: 20240304 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Flaherty & Crumrine PREFERRED & INCOME OPPORTUNITY FUND INC CENTRAL INDEX KEY: 0000882071 ORGANIZATION NAME: IRS NUMBER: 954355600 STATE OF INCORPORATION: MD FISCAL YEAR END: 1130 FILING VALUES: FORM TYPE: DEF 14A SEC ACT: 1934 Act SEC FILE NUMBER: 811-06495 FILM NUMBER: 24713327 BUSINESS ADDRESS: STREET 1: 301 E COLORADO BLVD STE 720 STREET 2: C/O FLAHERTY & CRUMRINE INC CITY: PASADENA STATE: CA ZIP: 91101 BUSINESS PHONE: (626) 795-7300 MAIL ADDRESS: STREET 1: 301 COLORADO BLVD STE 800 STREET 2: C/O FLAHERTY & CRUMRINE INC CITY: PASADENA STATE: CA ZIP: 91101 FORMER COMPANY: FORMER CONFORMED NAME: Flaherty & Crumrine PREFERRED INCOME OPPORTUNITY FUND INC DATE OF NAME CHANGE: 20050708 FORMER COMPANY: FORMER CONFORMED NAME: PREFERRED INCOME OPPORTUNITY FUND INC DATE OF NAME CHANGE: 19920929 </SEC-HEADER> <DOCUMENT> <TYPE>DEF 14A <SEQUENCE>1 <FILENAME>pfo-def14a_041724.htm <DESCRIPTION>DEFINITIVE PROXY STATEMENT <TEXT> Document 1 - file: pfo-def14a_041724.htm
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</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>proxycardpfo001.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 4 - file: proxycardpfo001.jpg
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