BlackRock MuniHoldings 캘리포니아 품질 기금, Inc.
US ˙ NYSE ˙ US09254L1070

SecurityMUC / BlackRock MuniHoldings California Quality Fund, Inc.
InstitutionUBS Group AG
Latest Disclosed Ownership365,655 shares
Latest Disclosed Value $ 3,802,812
UBS Group AG reports 43.67% increase in ownership of MUC / BlackRock MuniHoldings California Quality Fund, Inc.

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 365,655 shares of BlackRock MuniHoldings California Quality Fund, Inc. (US:MUC) valued at $3,802,812 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 254,502 shares of BlackRock MuniHoldings California Quality Fund, Inc.. This represents a change in shares of 43.67% during the quarter. The current value of the position is $3,934,448 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)
2026-05-05 2026-03-31 13F BLACKROCK MUNIHLDNGS CALI COM 09254L107 365,655 111,153 43.67 3,803 40.97 0.0001
2026-01-29 2025-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 254,502 -41,275 -13.95 2,698 -15.96 0.0001
2025-11-13 2025-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 295,777 -83,330 -21.98 3,209 -18.20 0.0005
2025-08-14 2025-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 379,107 43,858 13.08 3,924 9.28 0.0007
2025-05-13 2025-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 335,249 -53,779 -13.82 3,591 -13.18 0.0007
2025-02-14 2024-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 389,028 15,855 4.25 4,135 -3.79 0.0008
2024-11-14 2024-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 373,173 51,941 16.17 4,299 20.56 0.0009
2024-08-14 2024-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 321,232 -21,677 -6.32 3,566 -5.56 0.0009
2024-05-13 2024-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 342,909 -20,757 -5.71 3,775 -6.72 0.0009
2024-02-09 2023-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 363,666 -111,258 -23.43 4,048 -10.86 0.0012
2023-11-09 2023-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 474,924 -92,940 -16.37 4,540 -26.31 0.0016
2023-08-11 2023-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 567,864 -18,717 -3.19 6,161 -5.03 0.0021
2023-05-12 2023-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 586,581 15,254 2.67 6,488 5.72 0.0024
2023-02-08 2022-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 571,327 -34,452 -5.69 6,136 -5.69 0.0023
2022-11-10 2022-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 605,779 -36,498 -5.68 6,506 -15.37 0.0029
2022-08-10 2022-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 642,277 387,851 152.44 7,688 131.01 0.0032
2022-05-16 2022-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 254,426 13,215 5.48 3,328 -10.63 0.0011
2022-02-14 2021-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 241,211 -21,677 -8.25 3,724 -9.59 0.0011
2021-11-15 2021-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 262,888 -784 -0.30 4,119 -1.93 0.0013
2021-08-13 2021-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 263,672 -12,500 -4.53 4,200 1.06 0.0014
2021-05-12 2021-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 276,172 80,573 41.19 4,156 41.65 0.0014
2021-02-11 2020-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 195,599 2,982 1.55 2,934 8.95 0.0010
2020-11-12 2020-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 192,617 8,918 4.85 2,693 3.74 0.0010
2020-07-31 2020-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 183,699 5,401 3.03 2,596 9.21 0.0011
2020-05-01 2020-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 178,298 14,387 8.78 2,377 3.66 0.0011
2020-02-14 2019-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 163,911 14,121 9.43 2,293 8.42 0.0008
2019-11-14 2019-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 149,790 -6,004 -3.85 2,115 -0.56 0.0008
2019-08-14 2019-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 155,794 9,940 6.82 2,127 10.04 0.0008
2019-05-14 2019-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 145,854 -64,212 -30.57 1,933 -25.37 0.0008
2019-02-14 2018-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 210,066 -71,329 -25.35 2,590 -26.71 0.0012
2018-11-14 2018-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 281,395 -1,710 -0.60 3,534 -5.36 0.0014
2018-08-14 2018-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 283,105 -143,667 -33.66 3,734 -33.66 0.0016
2018-05-15 2018-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 426,772 -19,396 -4.35 5,629 -11.16 0.0024
2018-02-14 2017-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 446,168 -9,708 -2.13 6,336 -6.22 0.0026
2017-11-14 2017-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 455,876 7,850 1.75 6,756 4.50 0.0031
2017-11-14 2017-06-30 13F/A-1 BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 448,026 54,431 13.83 6,465 15.92 0.0033
2017-08-14 2017-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 448,026 6,465
2017-11-14 2017-03-31 13F/A-1 BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 393,595 -5,186 -1.30 5,577 -0.68 0.0030
2017-05-12 2017-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 393,595 -5,186 5,577
2017-02-14 2016-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 398,781 43,739 12.32 5,615 -1.39 0.0031
2016-11-14 2016-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 355,042 60,054 20.36 5,694 18.58 0.0034
2016-08-12 2016-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 294,988 -31,813 -9.73 4,802 -6.76 0.0030
2016-05-12 2016-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 326,801 47,511 17.01 5,150 24.19 0.0034
2016-02-16 2015-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 279,290 64,621 30.10 4,147 34.42 0.0027
2015-11-13 2015-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 214,669 26,191 13.90 3,085 16.90 0.0022
2015-08-14 2015-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 188,478 20,545 12.23 2,639 6.67 0.0018
2015-05-14 2015-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 167,933 11,199 7.15 2,474 9.08 0.0017
2015-02-17 2014-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 156,734 156,734 2,268 0.0016
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.