# Flaherty & Crumrine PREFERRED & INCOME OPPORTUNITY FUND INC: filings

PFO · NYSE · CIK 882071 · [Other](/sectors/other.md) · fiscal year ends Nov 30

Pages: [Overview](/companies/pfo.md) · [Financials](/companies/pfo/financials.md) · [Filings](/companies/pfo/filings.md) · [Insiders](/companies/pfo/insiders.md)

## Reports and events: 24 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (NPORT-P 27, N-30B-2 21, N-Q 21, 40-17G 19, DEF 14A 18, N-CSR 18, N-CSRS 18, N-PX 18, NSAR-B 10, NSAR-A 9, N-CEN 8, 5 7, 8-K 6, 4 4, PRE 14A 4, CORRESP 3, DEFA14A 3, 3 2, N-23C-2 2, 40-APP/A 1, 424B2 1, DEFR14A 1, EFFECT 1, N-2 1, N-2/A 1, N-30D 1, NPORT-EX 1, N-PX/A 1, POS EX 1, SCHEDULE 13G 1, SCHEDULE 13G/A 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-03-09 | 07:28 ET | [DEF 14A](/filings/0001999371-26-005306.md) | Proxy statement, period 2026-04-15 | 0001999371-26-005306 |
| 2025-03-17 | 16:39 ET | [DEF 14A](/filings/0001999371-25-002731.md) | Proxy statement, period 2025-04-16 | 0001999371-25-002731 |
| 2024-03-04 | 10:55 ET | [DEF 14A](/filings/0001999371-24-003018.md) | Proxy statement, period 2024-04-17 | 0001999371-24-003018 |
| 2023-03-02 | 15:16 ET | [DEF 14A](/filings/0001387131-23-002715.md) | Proxy statement, period 2023-04-19 | 0001387131-23-002715 |
| 2022-03-03 | 16:59 ET | [DEF 14A](/filings/0001387131-22-003143.md) | Proxy statement, period 2022-04-20 | 0001387131-22-003143 |
| 2021-03-04 | 13:26 ET | [DEF 14A](/filings/0001387131-21-003153.md) | Proxy statement, period 2021-04-21 | 0001387131-21-003153 |
| 2020-03-05 | 15:52 ET | [DEF 14A](/filings/0001387131-20-002590.md) | Proxy statement, period 2020-04-22 | 0001387131-20-002590 |
| 2019-05-02 | 17:03 ET | [8-K](/filings/0001387131-19-003276.md) | 8.01 Other events | 0001387131-19-003276 |
| 2019-03-12 | 16:48 ET | [DEF 14A](/filings/0001387131-19-001869.md) | Proxy statement, period 2019-04-23 | 0001387131-19-001869 |
| 2018-03-06 | 15:56 ET | [DEF 14A](/filings/0001206774-18-000706.md) | Proxy statement, period 2018-04-18 | 0001206774-18-000706 |
| 2017-03-10 | 16:44 ET | [DEF 14A](/filings/0001206774-17-000778.md) | Proxy statement, period 2017-04-19 | 0001206774-17-000778 |
| 2017-01-20 | 17:17 ET | [8-K](/filings/0001193125-17-014317.md) | 8.01 Other events | 0001193125-17-014317 |
| 2016-03-08 | 17:37 ET | [DEF 14A](/filings/0001206774-16-004823.md) | Proxy statement, period 2016-04-20 | 0001206774-16-004823 |
| 2015-11-13 | 17:27 ET | [8-K](/filings/0001206774-15-003493.md) | 8.01 Other events | 0001206774-15-003493 |
| 2015-06-04 | 15:42 ET | [8-K](/filings/0001206774-15-001897.md) | 8.01 Other events | 0001206774-15-001897 |
| 2015-04-23 | 16:46 ET | [8-K](/filings/0001206774-15-001371.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001206774-15-001371 |
| 2015-03-09 | 16:24 ET | [DEF 14A](/filings/0001206774-15-000832.md) | Proxy statement, period 2015-04-21 | 0001206774-15-000832 |
| 2014-03-21 | 14:02 ET | [DEF 14A](/filings/0001206774-14-000963.md) | Proxy statement, period 2014-04-17 | 0001206774-14-000963 |
| 2013-03-07 | 17:15 ET | [DEF 14A](/filings/0001206774-13-000979.md) | Proxy statement, period 2013-04-18 | 0001206774-13-000979 |
| 2012-03-06 | 16:40 ET | [DEF 14A](/filings/0001206774-12-000952.md) | Proxy statement, period 2012-04-19 | 0001206774-12-000952 |
| 2011-02-24 | 15:22 ET | [DEF 14A](/filings/0000950123-11-017799.md) | Proxy statement, period 2011-04-15 | 0000950123-11-017799 |
| 2011-02-03 | 17:16 ET | [8-K](/filings/0000950123-11-008745.md) | 8.01 Other events | 0000950123-11-008745 |
| 2010-02-25 | 17:14 ET | [DEF 14A](/filings/0000950123-10-017153.md) | Proxy statement, period 2010-04-22 | 0000950123-10-017153 |
| 2009-02-25 | 17:33 ET | [DEF 14A](/filings/0000935069-09-000374.md) | Proxy statement, period 2009-02-23 | 0000935069-09-000374 |

Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 14:58 ET. No prices; not investment advice.