BlackRock MuniHoldings California Quality Fund, Inc.
US ˙ NYSE ˙ US09254L1070

SecurityMUC / BlackRock MuniHoldings California Quality Fund, Inc.
InstitutionOppenheimer & Co Inc
Latest Disclosed Ownership30,200 shares
Latest Disclosed Value $ 314,080
Oppenheimer & Co Inc reports 11.12% decrease in ownership of MUC / BlackRock MuniHoldings California Quality Fund, Inc.

On April 23, 2026 - Oppenheimer & Co Inc filed a 13F-HR form disclosing ownership of 30,200 shares of BlackRock MuniHoldings California Quality Fund, Inc. (US:MUC) valued at $314,080 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 33,977 shares of BlackRock MuniHoldings California Quality Fund, Inc.. This represents a change in shares of -11.12% during the quarter. The current value of the position is $324,952 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)
2026-04-23 2026-03-31 13F BLACKROCK MUNIHLDNGS CALI COM 09254L107 30,200 -3,777 -11.12 314 -12.78 0.0038
2026-02-02 2025-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 33,977 13,080 62.59 360 59.29 0.0051
2025-11-06 2025-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 20,897 3,986 23.57 227 29.14 0.0028
2025-07-31 2025-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 16,911 -603 -3.44 175 -6.42 0.0023
2025-04-23 2025-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 17,514 5,377 44.30 188 44.96 0.0028
2025-02-05 2024-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 12,137 1,920 18.79 129 10.26 0.0019
2024-11-05 2024-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 10,217 10,217 118 0.0018
2021-11-12 2021-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 0 -10,346 -100.00 0 -100.00
2021-08-03 2021-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 10,346 116 1.13 165 7.14 0.0030
2021-05-10 2021-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 10,230 -3,673 -26.42 154 -26.32 0.0031
2021-02-11 2020-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 13,903 -772 -5.26 209 1.95 0.0044
2020-11-13 2020-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 14,675 -2,993 -16.94 205 -18.00 0.0051
2020-08-11 2020-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 17,668 -823 -4.45 250 1.63 0.0065
2020-05-08 2020-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 18,491 650 3.64 246 -1.60 0.0075
2020-02-07 2019-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 17,841 -343 -1.89 250 -2.72 0.0062
2019-10-31 2019-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 18,184 -828 -4.36 257 -1.15 0.0070
2019-08-09 2019-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 19,012 188 1.00 260 4.42 0.0071
2019-04-24 2019-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 18,824 205 1.10 249 8.26 0.0067
2019-01-29 2018-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 18,619 196 1.06 230 -0.43 0.0072
2018-10-26 2018-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 18,423 6,627 56.18 231 48.08 0.0059
2018-08-10 2018-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 11,796 129 1.11 156 1.30 0.0042
2018-05-01 2018-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 11,667 11,667 154 0.0040
2017-02-01 2016-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 0 -15,591 -100.00 0 -100.00
2016-11-07 2016-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 15,591 -32 -0.20 250 -1.57 0.0073
2016-08-08 2016-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 15,623 385 2.53 254 5.83 0.0076
2016-04-26 2016-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 15,238 192 1.28 240 7.62 0.0073
2016-02-03 2015-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 15,046 201 1.35 223 4.69 0.0066
2015-11-13 2015-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 14,845 201 1.37 213 3.90 0.0065
2015-08-12 2015-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 14,644 -702 -4.57 205 -9.29 0.0057
2015-05-08 2015-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 15,346 199 1.31 226 3.20 0.0062
2015-02-10 2014-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 15,147 -3,242 -17.63 219 -16.41 0.0063
2014-11-12 2014-09-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 18,389 214 1.18 262 0.77 0.0078
2014-08-14 2014-06-30 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 18,175 219 1.22 260 4.00 0.0078
2014-05-09 2014-03-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 17,956 217 1.22 250 6.38 0.0075
2014-02-12 2013-12-31 13F BLACKROCK MUNIHLDNGS CALI QL COM 09254L107 17,739 17,739 235 0.0075
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.