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

SecurityMYI / BlackRock MuniYield Quality Fund III, Inc.
InstitutionAllworth Financial LP
Latest Disclosed Ownership2,008 shares
Latest Disclosed Value $ 21,105
Allworth Financial LP ownership in MYI / BlackRock MuniYield Quality Fund III, Inc.

On May 14, 2026 - Allworth Financial LP filed a 13F-HR form disclosing ownership of 2,008 shares of BlackRock MuniYield Quality Fund III, Inc. (US:MYI) valued at $21,104 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 0 shares of BlackRock MuniYield Quality Fund III, Inc.. The current value of the position is $21,747 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)
2026-05-14 2026-03-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 2,008 2,008 21 0.0001
2026-02-05 2025-12-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 0 -2,008 -100.00 0 -100.00
2025-12-02 2025-09-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 2,008 0 0.00 22 4.76 0.0001
2025-08-07 2025-06-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 2,008 0 0.00 21 0.00 0.0001
2025-04-30 2025-03-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 2,008 0 0.00 21 -4.55 0.0001
2025-01-30 2024-12-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 2,008 0 0.00 22 -8.33 0.0001
2024-10-23 2024-09-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 2,008 -396 -16.47 24 -11.11 0.0001
2024-07-24 2024-06-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 2,404 0 0.00 27 0.00 0.0002
2024-04-25 2024-03-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 2,404 0 0.00 28 0.00 0.0002
2024-01-24 2023-12-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 2,404 0 0.00 28 22.73 0.0002
2023-10-31 2023-09-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 2,404 -2,228 -48.10 23 -56.00 0.0002
2023-07-18 2023-06-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 4,632 25 0.54 51 -3.85 0.0004
2023-04-18 2023-03-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 4,607 411 9.80 52 10.64 0.0005
2023-01-13 2022-12-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 4,196 36 0.87 47 9.30 0.0005
2022-11-14 2022-09-30 13F/A-1 BLACKROCK MUNIYIELD QUALITY COM 09254E103 4,160 27 0.65 43 -10.42 0.0005
2022-10-18 2022-09-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 4,160 27 43 0.0005
2022-07-13 2022-06-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 4,133 27 0.66 48 -7.69 0.0007
2022-04-22 2022-03-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 4,106 16 0.39 52 -14.75 0.0007
2022-01-21 2021-12-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 4,090 29 0.71 61 1.67 0.0009
2021-11-02 2021-09-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 4,061 21 0.52 60 0.00 0.0010
2021-08-02 2021-06-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 4,040 2,032 101.20 60 106.90 0.0011
2021-04-29 2021-03-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 2,008 0 0.00 29 0.00 0.0006
2021-01-26 2020-12-31 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 2,008 0 0.00 29 7.41 0.0008
2020-11-03 2020-09-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 2,008 0 0.00 27 3.85 0.0008
2020-07-24 2020-06-30 13F BLACKROCK MUNIYIELD QUALITY COM 09254E103 2,008 0 0.00 26 0.00 0.0008
2020-04-17 2020-03-31 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 2,008 0 0.00 26 -3.70 0.0009
2020-01-16 2019-12-31 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 2,008 0 0.00 27 0.00 0.0009
2019-10-09 2019-09-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 2,008 27 0.00 0.0010
2019-07-25 2019-06-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 27 3.85 0.0011
2019-05-07 2019-03-31 13F BLACKROCK MUNIYIELD QLTY F COM 09254E103 26 8.33 0.0011
2019-02-11 2018-12-31 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 24 0.00 0.0012
2018-10-29 2018-09-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 24 -4.00 0.0011
2018-08-08 2018-06-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 25 0.00 0.0012
2018-05-01 2018-03-31 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 25 -10.71 0.0019
2018-02-21 2017-12-31 13F BLACKROCK MUNIYIELD QLTY COM 09254E103 28 -3.45 0.0022
2017-10-12 2017-09-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 29 0.00 0.0024
2017-08-07 2017-06-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 29 3.57 0.0026
2017-05-09 2017-03-31 13F BLACKROCK MUNIYIELD QLTY COM 09254E103 28 3.70 0.0026
2017-02-02 2016-12-31 13F BLACKROCK MUNIYIELD QLTY COM 09254E103 27 -12.90 0.0027
2017-02-07 2016-09-30 13F BLACKROCK MUNIYIELD QLTY FD COM 09254E103 31 0.0033
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.