PIMCO Corporate & Income Opportunity Fund
US ˙ NYSE ˙ US72201B1017

SecurityPTY / PIMCO Corporate & Income Opportunity Fund
InstitutionCommonwealth Equity Services, Llc
Latest Disclosed Ownership496,061 shares
Latest Disclosed Value $ 6,399,190
Commonwealth Equity Services, Llc reports 22.89% decrease in ownership of PTY / PIMCO Corporate & Income Opportunity Fund

On February 12, 2026 - Commonwealth Equity Services, Llc filed a 13F-HR form disclosing ownership of 496,061 shares of PIMCO Corporate & Income Opportunity Fund (US:PTY) valued at $6,399,187 USD as of December 31, 2025. The entity filed a previous 13F-HR on October 22, 2025 disclosing 643,326 shares of PIMCO Corporate & Income Opportunity Fund. This represents a change in shares of -22.89% during the quarter. The current value of the position is $5,888,244 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-02-12 2025-12-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 496,061 -147,265 -22.89 6,399 71,000.00
2025-10-22 2025-09-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 643,326 -289,051 -31.00 9 -25.00 0.0120
2025-08-06 2025-06-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 932,377 -149,988 -13.86 13 -20.00 0.0171
2025-05-09 2025-03-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 1,082,365 95,449 9.67 16 7.14 0.0222
2025-02-10 2024-12-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 986,916 -4,830 -0.49 14 0.00 0.0207
2024-10-18 2024-09-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 991,746 -100,487 -9.20 14 -6.67 0.0216
2024-07-31 2024-06-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 1,092,233 113,583 11.61 16 7.14 0.0247
2024-04-29 2024-03-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 978,650 62,277 6.80 15 16.67 0.0242
2024-02-06 2023-12-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 916,373 57,407 6.68 12 9.09 0.0222
2023-10-23 2023-09-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 858,966 13,589 1.61 11 0.00 0.0233
2023-08-10 2023-06-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 845,377 -3,607 -0.42 12 10.00 0.0241
2023-05-11 2023-03-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 848,984 81,272 10.59 11 11.11 0.0222
2023-02-07 2022-12-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 767,712 18,136 2.42 9 -99.90 0.0222
2022-11-14 2022-09-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 749,576 23,853 3.29 8,807 -2.99 0.0227
2022-07-19 2022-06-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 725,723 -6,404 -0.87 9,078 -19.22 0.0237
2022-05-04 2022-03-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 732,127 34,516 4.95 11,238 -2.60 0.0257
2022-01-31 2021-12-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 697,611 13,083 1.91 11,538 -7.84 0.0260
2021-10-29 2021-09-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 684,528 25,333 3.84 12,520 -4.02 0.0314
2021-08-11 2021-06-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 659,195 37,558 6.04 13,045 14.86 0.0331
2021-05-04 2021-03-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 621,637 44,470 7.70 11,357 10.24 0.0321
2021-02-11 2020-12-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 577,167 50,339 9.56 10,302 21.24 0.0310
2020-11-05 2020-09-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 526,828 8,053 1.55 8,497 5.61 0.0290
2020-08-12 2020-06-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 518,775 -17,895 -3.33 8,046 16.14 0.0304
2020-05-11 2020-03-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 536,670 9,360 1.78 6,928 -30.84 0.0323
2020-02-05 2019-12-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 527,310 26,805 5.36 10,018 10.34 0.0381
2019-10-30 2019-09-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 500,505 20,787 4.33 9,079 4.33 0.0387
2019-07-19 2019-06-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 479,718 10,082 2.15 8,702 5.95 0.0383
2019-05-13 2019-03-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 469,636 -20,505 -4.18 8,213 9.24 0.0379
2019-02-11 2018-12-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 490,141 14,618 3.07 7,518 -11.43 0.0399
2018-11-06 2018-09-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 475,523 17,236 3.76 8,488 5.90 0.0407
2018-07-31 2018-06-30 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 458,287 4,849 1.07 8,015 4.47 0.0419
2018-05-14 2018-03-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 453,438 3,238 0.72 7,672 3.54 0.0416
2018-02-12 2017-12-31 13F PIMCO CORPORATE & INCOME OPP COM 72201B101 450,200 450,200 7,410 0.0405
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.