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PIMCO Corporate & Income Opportunity Fund

PTY
Exchange
NYSE
SEC CIK
0001190935

No open-market purchases or sales by PIMCO Corporate & Income Opportunity Fund insiders were filed in the last 90 days; 222 institutions reported holding it in 13F filings for Q2 2026, worth $421.1M in total; no superinvestor holds it.

13F holders, Q3 2025

Institutional positions in PIMCO Corporate & Income Opportunity Fund as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
203
+4 vs. Q2 2025
Shares held
27.9M
+1.50M (+5.7%) vs. Q2 2025
Total value
$402.8M
+$35.4M (+9.6%) vs. Q2 2025
New holders
23
91 more added
Sold out
19
43 more reduced

5 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting PTY on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 203 institutions
Q1 2021: 126 institutionsQ2 2021: 132 institutionsQ3 2021: 138 institutionsQ4 2021: 148 institutionsQ1 2022: 142 institutionsQ2 2022: 148 institutionsQ3 2022: 142 institutionsQ4 2022: 155 institutionsQ1 2023: 145 institutionsQ2 2023: 151 institutionsQ3 2023: 159 institutionsQ4 2023: 169 institutionsQ1 2024: 157 institutionsQ2 2024: 166 institutionsQ3 2024: 181 institutionsQ4 2024: 194 institutionsQ1 2025: 192 institutionsQ2 2025: 204 institutionsQ3 2025: 203 institutionsQ4 2025: 216 institutionsQ1 2026: 222 institutionsQ2 2026: 222 institutions
Value heldQ3 2025: $402.8M
Q1 2021: $160.3MQ2 2021: $174.3MQ3 2021: $187.5MQ4 2021: $164.4MQ1 2022: $165.6MQ2 2022: $133.3MQ3 2022: $122.3MQ4 2022: $146.1MQ1 2023: $189.4MQ2 2023: $229.4MQ3 2023: $219.0MQ4 2023: $215.1MQ1 2024: $252.4MQ2 2024: $276.0MQ3 2024: $293.1MQ4 2024: $317.9MQ1 2025: $337.1MQ2 2025: $368.6MQ3 2025: $402.8MQ4 2025: $415.5MQ1 2026: $405.5MQ2 2026: $421.1M
Institutions holding PTY and their total value by quarter
QuarterHoldersValue
Q2 2026222$421.1M
Q1 2026222$405.5M
Q4 2025216$415.5M
Q3 2025203$402.8M
Q2 2025204$368.6M
Q1 2025192$337.1M
Q4 2024194$317.9M
Q3 2024181$293.1M
Q2 2024166$276.0M
Q1 2024157$252.4M
Q4 2023169$215.1M
Q3 2023159$219.0M
Q2 2023151$229.4M
Q1 2023145$189.4M
Q4 2022155$146.1M
Q3 2022142$122.3M
Q2 2022148$133.3M
Q1 2022142$165.6M
Q4 2021148$164.4M
Q3 2021138$187.5M
Q2 2021132$174.3M
Q1 2021126$160.3M

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding PIMCO Corporate & Income Opportunity Fund; share changes are against Q2 2025.

Institutions holding PTY in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Massmutual Trust Co FSB2$290.00%00.0%Unchanged
DHJJ Financial Advisors, Ltd.2$290.00%00.0%Unchanged
Coastline Trust Co100$1.44K0.00%+100New
Hoey Investments, Inc151$2.18K0.00%00.0%Unchanged
Kerr Financial Planning Corp209$2.75K0.00%+209New
Bryn Mawr Trust Co200$2.89K0.00%+200New
Sound Income Strategies, LLC226$3.29K0.00%00.0%Unchanged
UMA Financial Services, Inc.300$4.33K0.00%00.0%Unchanged
Russell Investments Group, Ltd.300$4.33K0.00%+300New
Caitlin John, LLC300$4.33K0.00%+300New
Highline Wealth Partners LLC300$4.33K0.00%+300New
Advisory Services Network, LLC303$4.38K0.00%+303New
Trust Co of Vermont383$5.53K0.00%00.0%Unchanged
Boyd Watterson Asset Management LLC500$7.22K0.00%00.0%Unchanged
Smartleaf Asset Management LLC602$8.67K0.00%00.0%Unchanged
AllSquare Wealth Management LLC700$10.1K0.01%00.0%Unchanged
Fortitude Family Office, LLC700$10.1K0.00%00.0%Unchanged
Root Financial Partners, LLC700$10.1K0.00%+700New
Moisand Fitzgerald Tamayo, LLC745$10.8K0.00%00.0%Unchanged
Pension & Wealth Management Advisors, Inc.768$11.1K0.00%+768New
Crewe Advisors LLC850$12.3K0.00%00.0%Unchanged
Geneos Wealth Management Inc.850$12.3K0.00%00.0%Unchanged
J.Safra Asset Management Corp1,156$16.7K0.00%+1,156New
Princeton Global Asset Management LLC1,267$18.3K0.00%+32+2.6%Added
Assetmark, Inc1,426$20.6K0.00%+107+8.1%Added
CIBC Private Wealth Group, LLC1,500$21.7K0.00%−1,622−52.0%Reduced
Bogart Wealth, LLC1,600$23.1K0.00%00.0%Unchanged
Pin Oak Investment Advisors Inc1,713$24.9K0.02%00.0%Unchanged
Aspect Partners, LLC1,744$25.2K0.01%+1,744New
Eastern Bank1,800$26.0K0.00%+1,800New
Heritage Wealth Advisors1,920$27.7K0.00%+300+18.5%Added
CoreCap Advisors, LLC1,950$28.2K0.00%00.0%Unchanged
Webster Bank, N. A.2,200$31.8K0.00%00.0%Unchanged
CX Institutional2,224$32.0K0.00%+2,224New
Versant Capital Management, Inc2,500$36.1K0.00%00.0%Unchanged
Rothschild Investment LLC2,694$38.9K0.00%00.0%Unchanged
MAI Capital Management3,000$43.3K0.00%00.0%Unchanged
FNY Investment Advisers, LLC3,200$46.0K0.01%00.0%Unchanged
Bank of New Hampshire3,425$49.5K0.01%00.0%Unchanged
CWM, LLC3,604$52.0K0.00%−187−4.9%Reduced
Cape Investment Advisory, Inc.3,783$54.6K0.05%−1,632−30.1%Reduced
Spire Wealth Management5,080$73.3K0.00%+601+13.4%Added
TD Waterhouse Canada Inc.6,000$85.9K0.00%00.0%Unchanged
Harbor Investment Advisory, LLC6,109$88.2K0.01%00.0%Unchanged
Parallel Advisors, LLC7,053$101.9K0.00%−94,377−93.0%Reduced
Farther Finance Advisors, LLC8,470$122.3K0.00%+735+9.5%Added
EverSource Wealth Advisors, LLC8,950$129.2K0.01%+2,250+33.6%Added
International Assets Investment Management, LLC10,021$139.5K0.01%00.0%Unchanged
IHT Wealth Management, LLC10,109$146.0K0.00%−94−0.9%Reduced
TFB Advisors LLC10,197$146.2K0.04%+10,197New
Stephens Inc10,200$147.3K0.00%00.0%Unchanged
Independent Advisor Alliance10,608$153.2K0.00%00.0%Unchanged
Modern Wealth Management, LLC10,920$157.7K0.00%−2,906−21.0%Reduced
NBC Securities, Inc.10,955$158.2K0.01%00.0%Unchanged
Apollon Wealth Management, LLC11,095$160.2K0.00%00.0%Unchanged
Semus Wealth Partners LLC11,436$165.1K0.09%−3,415−23.0%Reduced
Global Retirement Partners, LLC11,619$167.8K0.00%+116+1.0%Added
Beacon Financial Advisory LLC11,920$172.1K0.04%−196−1.6%Reduced
Coston, McIsaac & Partners12,058$174.0K0.04%+11,437+1,841.7%Added
Kestra Private Wealth Services, LLC12,256$177.0K0.00%00.0%Unchanged
Insigneo Advisory Services, LLC12,532$181.0K0.01%+2,106+20.2%Added
Instrumental Wealth, LLC13,336$183.0K0.13%+1,232+10.2%Added
Wedbush Securities Inc13,206$191.0K0.01%−179−1.3%Reduced
BEAM Asset Management, LLC14,178$204.7K0.06%−2,736−16.2%Reduced
Prospera Financial Services Inc14,751$213.0K0.00%+14,751New
The PNC Financial Services Group, Inc.14,771$213.3K0.00%+500+3.5%Added
Disciplined Investments, LLC15,000$216.6K0.09%00.0%Unchanged
Allworth Financial LP15,356$221.7K0.00%−191−1.2%Reduced
Ameritas Advisory Services, LLC15,406$222.5K0.01%+7,162+86.9%Added
Beacon Pointe Advisors, LLC15,870$229.2K0.00%−24,369−60.6%Reduced
Patten & Patten Inc16,566$239.2K0.01%+414+2.6%Added
Institute for Wealth Management, LLC.16,619$240.0K0.02%+1,583+10.5%Added
Fulton Breakefield Broenniman LLC16,745$241.8K0.02%00.0%Unchanged
Ameriflex Group, Inc.16,800$242.6K0.09%+16,800New
Harbour Investments, Inc.17,068$246.5K0.01%+668+4.1%Added
Comerica Bank17,078$246.6K0.00%+9+0.1%Added
Gries Financial LLC17,167$247.9K0.04%+17,167New
Creative Planning17,371$250.8K0.00%+3,059+21.4%Added
CFO4Life Group, LLC17,458$252.1K0.04%00.0%Unchanged
Wealth Alliance Advisory Group, LLC17,847$257.7K0.05%00.0%Unchanged
AE Wealth Management LLC18,399$265.7K0.00%+1,065+6.1%Added
Great Valley Advisor Group, Inc.18,495$267.1K0.01%+407+2.3%Added
Sym Financial Corp18,647$269.3K0.03%+378+2.1%Added
Miracle Mile Advisors, LLC18,930$273.3K0.00%+500+2.7%Added
Two Sigma Securities, LLC19,157$276.6K0.04%+1,654+9.4%Added
Verus Capital Partners, LLC19,244$277.9K0.02%−188−1.0%Reduced
Sowell Financial Services LLC20,059$289.7K0.01%+9,660+92.9%Added
Virtu Financial LLC20,196$292.0K0.02%+670+3.4%Added
GSB Wealth Management, LLC20,478$295.7K0.07%+538+2.7%Added
Patron Partners Advisors, LLC21,421$309.3K0.14%+85+0.4%Added
Iams Wealth Management, LLC22,000$317.7K0.13%−145−0.7%Reduced
Taylor & Morgan Wealth Management, LLC22,475$324.5K0.20%+542+2.5%Added
Centaurus Financial, Inc.22,821$330.0K0.02%+247+1.1%Added
Optimum Investment Advisors22,900$330.7K0.13%00.0%Unchanged
VestGen Advisors, LLC22,900$330.7K0.01%+22,900New
RSM US Wealth Management LLC22,888$333.0K0.00%−2,815−11.0%Reduced
Dodds Wealth, LLC23,113$333.8K0.08%00.0%Unchanged
Avestar Capital, LLC23,000$334.9K0.02%00.0%Unchanged
D.A. Davidson & Co.23,766$343.2K0.00%−4,386−15.6%Reduced
Cerity Partners LLC24,013$346.7K0.00%+24,013New