BlackRock MuniYield Quality Fund III, Inc.
US ˙ NYSE ˙ US09254E1038

SecurityMYI / BlackRock MuniYield Quality Fund III, Inc.
InstitutionCreative Planning
Latest Disclosed Ownership10,993 shares
Latest Disclosed Value $ 115,533
Creative Planning reports 9.74% increase in ownership of MYI / BlackRock MuniYield Quality Fund III, Inc.

On May 12, 2026 - Creative Planning filed a 13F-HR form disclosing ownership of 10,993 shares of BlackRock MuniYield Quality Fund III, Inc. (US:MYI) valued at $115,536 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 10,017 shares of BlackRock MuniYield Quality Fund III, Inc.. This represents a change in shares of 9.74% during the quarter. The current value of the position is $119,934 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 MUNIYIELD QUALITY COM 09254E103 10,993 976 9.74 116 6.48 0.0001
2026-02-17 2025-12-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 10,017 -1,222 -10.87 109 -12.90 0.0001
2025-11-14 2025-09-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 11,239 1,000 9.77 125 15.89 0.0001
2025-08-08 2025-06-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 10,239 0 0.00 107 -4.46 0.0001
2025-05-15 2025-03-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 10,239 0 0.00 113 -0.88 0.0001
2025-02-14 2024-12-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 10,239 10,239 113 0.0001
2024-10-11 2024-09-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 0 -10,239 -100.00 0 -100.00
2024-08-15 2024-06-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 10,239 -1,547 -13.13 114 -15.56 0.0001
2024-05-13 2024-03-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 11,786 -2,435 -17.12 135 -18.18 0.0001
2024-02-14 2023-12-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 14,221 1,182 9.07 166 33.06 0.0003
2023-11-16 2023-09-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 13,039 0 0.00 125 -12.68 0.0002
2023-07-21 2023-06-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 13,039 1,000 8.31 143 4.41 0.0002
2023-05-15 2023-03-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 12,039 0 0.00 137 1.49 0.0002
2023-02-10 2022-12-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 12,039 450 3.88 135 10.74 0.0002
2022-11-03 2022-09-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 11,589 0 0.00 121 -10.37 0.0002
2022-08-15 2022-06-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 11,589 11,589 135 0.0002
2021-11-10 2021-09-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 0 -10,107 -100.00 0 -100.00
2021-08-04 2021-06-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 10,107 -4,196 -29.34 150 -26.47 0.0003
2021-04-30 2021-03-31 13F CreativePlanning COM 09254E103 14,303 0 0.00 204 -1.45 0.0004
2021-01-29 2020-12-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 14,303 2,800 24.34 207 33.55 0.0005
2020-11-05 2020-09-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 11,503 -4,693 -28.98 155 -26.54 0.0004
2020-07-23 2020-06-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 16,196 3,540 27.97 211 30.25 0.0006
2020-05-05 2020-03-31 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 12,656 -3,100 -19.68 162 -23.94 0.0006
2020-01-30 2019-12-31 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 15,756 1,440 10.06 213 9.79 0.0006
2019-11-01 2019-09-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 14,316 0 0.00 194 2.65 0.0006
2019-07-26 2019-06-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 14,316 0 0.00 189 2.16 0.0006
2019-04-24 2019-03-31 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 14,316 14,316 185 0.0007
2018-04-18 2018-03-31 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 0 -11,958 -100.00 0 -100.00
2018-01-17 2017-12-31 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 11,958 0 0.00 165 -3.51 0.0007
2017-10-17 2017-09-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 11,958 4,410 58.43 171 58.33 0.0008
2017-07-12 2017-06-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 7,548 -2,224 -22.76 108 -20.59 0.0005
2017-04-07 2017-03-31 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 9,772 -14,235 -59.30 136 -58.54 0.0007
2017-01-09 2016-12-31 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 24,007 -337 -1.38 328 -11.59 0.0020
2016-10-12 2016-09-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 24,344 1,227 5.31 371 2.49 0.0024
2016-07-12 2016-06-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 23,117 -1,900 -7.59 362 -3.98 0.0026
2016-04-08 2016-03-31 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 25,017 1,900 8.22 377 10.56 0.0029
2016-01-11 2015-12-31 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 23,117 -100 -0.43 341 5.25 0.0028
2015-10-09 2015-09-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 23,217 -475 -2.00 324 -0.61 0.0029
2015-07-09 2015-06-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 23,692 105 0.45 326 -2.69 0.0030
2015-04-13 2015-03-31 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 23,587 23,587 0.00 335 0.0031
2015-01-29 2014-12-31 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 0 -21,644 -100.00 0 -100.00
2014-10-10 2014-09-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 21,644 0 0.00 297 -0.67 0.0034
2014-08-20 2014-06-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 21,644 3,972 22.48 299 24.58 0.0039
2014-04-11 2014-03-31 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 17,672 14,235 414.17 240 445.45 0.0036
2014-01-06 2013-12-31 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 3,437 1,213 54.54 44 51.72 0.0008
2013-10-10 2013-09-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 2,224 -1,000 -31.02 29 -35.56 0.0006
2013-07-09 2013-06-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 3,224 3,224 45 0.0010
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.