BlackRock MuniAssets Fund, Inc.
US ˙ NYSE ˙ US09254J1025

SecurityMUA / BlackRock MuniAssets Fund, Inc.
InstitutionInvesco Ltd.
Latest Disclosed Ownership43,012 shares
Latest Disclosed Value $ 456,357
Invesco Ltd. reports 0.29% decrease in ownership of MUA / BlackRock MuniAssets Fund, Inc.

On May 12, 2026 - Invesco Ltd. filed a 13F-HR form disclosing ownership of 43,012 shares of BlackRock MuniAssets Fund, Inc. (US:MUA) valued at $456,357 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 19, 2026 disclosing 43,137 shares of BlackRock MuniAssets Fund, Inc.. This represents a change in shares of -0.29% during the quarter. The current value of the position is $460,228 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)
2026-05-12 2026-03-31 13F BLACKROCK MUNIASSETS FD COM 09254J102 43,012 -125 -0.29 456 -1.08 0.0001
2026-02-19 2025-12-31 13F BLACKROCK MUNIASSETS FD COM 09254J102 43,137 -32,942 -43.30 462 -45.38 0.0001
2025-11-13 2025-09-30 13F BLACKROCK MUNIASSETS FD COM 09254J102 76,079 36,862 93.99 844 107.37 0.0001
2025-08-13 2025-06-30 13F BLACKROCK MUNIASSETS FD COM 09254J102 39,217 30 0.08 408 -4.01 0.0001
2025-05-12 2025-03-31 13F BLACKROCK MUNIASSETS FD COM 09254J102 39,187 -180 -0.46 424 -2.30 0.0001
2025-02-13 2024-12-31 13F BLACKROCK MUNIASSETS FD COM 09254J102 39,367 -546 -1.37 435 -12.15 0.0001
2024-11-12 2024-09-30 13F BLACKROCK MUNIASSETS FD COM 09254J102 39,913 39,913 495 0.0001
2024-05-14 2024-03-31 13F BLACKROCK MUNIASSETS FD COM 09254J102 0 -21,613 -100.00 0 -100.00
2024-02-13 2023-12-31 13F BLACKROCK MUNIASSETS FD COM 09254J102 21,613 -4,482 -17.18 229 -2.56 0.0001
2023-11-13 2023-09-30 13F BLACKROCK MUNIASSETS FD COM 09254J102 26,095 -98 -0.37 235 -12.03 0.0001
2023-08-11 2023-06-30 13F BLACKROCK MUNIASSETS FD COM 09254J102 26,193 -438 -1.64 267 -5.00 0.0001
2023-05-12 2023-03-31 13F BLACKROCK MUNIASSETS FD COM 09254J102 26,631 1,337 5.29 280 2.56 0.0001
2023-02-13 2022-12-31 13F BLACKROCK MUNIASSETS FD COM 09254J102 25,294 25,294 274 0.0001
2020-08-14 2020-06-30 13F BLACKROCK MUNIASSETS FD COM 09254J102 0 -19,783 -100.00 0 -100.00
2020-05-15 2020-03-31 13F BLACKROCK MUNIASSETS FD COM 09254J102 19,783 -32,912 -62.46 264 -66.96 0.0001
2020-02-14 2019-12-31 13F BLACKROCK MUNIASSETS FD COM 09254J102 52,695 -9,456 -15.21 799 -16.94 0.0002
2019-11-14 2019-09-30 13F BLACKROCK MUNIASSETS FD COM 09254J102 62,151 -27,889 -30.97 962 -32.63 0.0003
2019-08-14 2019-06-30 13F/A-1 BLACKROCK MUNIASSETS FD COM 09254J102 90,040 -8,846 -8.95 1,428 -2.72 0.0004
2019-08-14 2019-06-30 13F BLACKROCK MUNIASSETS FD COM 09254J102 90,040 -8,846 1,428
2019-05-15 2019-03-31 13F BLACKROCK MUNIASSETS FD COM 09254J102 98,886 36,371 58.18 1,468 82.36 0.0005
2019-02-14 2018-12-31 13F BLACKROCK MUNIASSETS FD COM 09254J102 62,515 28,647 84.58 805 83.37 0.0003
2018-11-14 2018-09-30 13F BLACKROCK MUNIASSETS FD COM 09254J102 33,868 -46,121 -57.66 439 -58.51 0.0001
2018-08-14 2018-06-30 13F BLACKROCK MUNIASSETS FD COM 09254J102 79,989 -24,543 -23.48 1,058 -24.96 0.0004
2018-05-15 2018-03-31 13F BLACKROCK MUNIASSETS FD COM 09254J102 104,532 -21,203 -16.86 1,410 -25.08 0.0005
2018-02-14 2017-12-31 13F BLACKROCK MUNIASSETS FD COM 09254J102 125,735 -5,519 -4.20 1,882 -4.90 0.0007
2017-11-14 2017-09-30 13F BLACKROCK MUNIASSETS FD COM 09254J102 131,254 683 0.52 1,979 1.23 0.0007
2017-08-14 2017-06-30 13F BLACKROCK MUNIASSETS FD COM 09254J102 130,571 66,910 105.10 1,955 116.98 0.0006
2017-05-15 2017-03-31 13F BLACKROCK MUNIASSETS FD COM 09254J102 63,661 63,661 901 0.0003
2016-02-16 2015-12-31 13F BLACKROCK MUNIASSETS FD COM 09254J102 0 -68,246 -100.00 0 -100.00
2015-11-16 2015-09-30 13F BLACKROCK MUNIASSETS FD COM 09254J102 68,246 -18,586 -21.40 922 -21.53 0.0004
2015-08-14 2015-06-30 13F BLACKROCK MUNIASSETS FUND CEF COMMON 09254J102 86,832 -5,679 -6.14 1,175 -9.68 0.0005
2015-05-15 2015-03-31 13F BLACKROCK MUNIASSETS FUND CEF COMMON 09254J102 92,511 -1,295 -1.38 1,301 0.54 0.0005
2015-02-13 2014-12-31 13F BLACKROCK MUNIASSETS FUND CEF COMMON 09254J102 93,806 1,546 1.68 1,294 6.85 0.0005
2014-11-14 2014-09-30 13F BLACKROCK MUNIASSETS FUND CEF COMMON 09254J102 92,260 92,260 0.00 1,211 0.0005
2014-08-14 2014-06-30 13F BLACKROCK MUNIASSETS FUND CEF COMMON 09254J102 0 -82,289 -100.00 0 -100.00
2014-05-15 2014-03-31 13F BLACKROCK MUNIASSETS FUND CEF COMMON 09254J102 82,289 -63,527 -43.57 1,014 -39.79 0.0004
2014-02-13 2013-12-31 13F BLACKROCK MUNIASSETS FUND CEF COMMON 09254J102 145,816 -28,257 -16.23 1,684 -18.77 0.0007
2013-11-13 2013-09-30 13F BLACKROCK MUNIASSETS FUND CEF COMMON 09254J102 174,073 -29,980 -14.69 2,073 -19.50 0.0009
2013-08-14 2013-06-30 13F BLACKROCK MUNIASSETS FUND CEF COMMON 09254J102 204,053 204,053 2,575 0.0012
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.