13F reference period
Q3 2026
Security Snapshot
BLACKROCK MUNIYIELD QUALITY FUND III, INC. - Common (MYI) Institutional Ownership
CUSIP: 09254E103
13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026
Institutions Reporting
87
Shares (Excl. Options)
23.51M
Full value: 23,513,750 · shares · 30 Sep 2026Price
$9.63
The headline uses the Q3 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.
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- Security type / class
- Equity / Common
- Symbol
- MYI on NYSE
- All holders as of 30 Sep 2026
- Q3 2026
- Total 13F shares
- 23,513,750
- Total 13F value
- $226,495,529
- Portfolio coverage rank
- 0%
- Share change
- +882,637
- Value change
- +$7,994,958
- Number of holders
- 87
- Shares outstanding
- 122,389,743
- SEC-reported price per share
- $9.63
- Insider filing price
- $9.63
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source
Key facts
- MYI - BLACKROCK MUNIYIELD QUALITY FUND III, INC. - Common is tracked under CUSIP 09254E103.
- 87 institutions reported positions in Q3 2026.
- 1 significant owner is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 156 to 87 between Q2 2026 and Q3 2026.
- SEC-reported value moved from to
$431.84M
Full value: $431,840,764 · USD · 30 Jun 2026.$226.5M
Full value: $226,495,529 · USD · 30 Sep 2026
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 87 institutions filings for Q3 2026.
Security key
09254E103
13F reference period
Q3 2026
13F holders
87
13D/G owners
1
CIK / CUSIP context first
Open Q3 2026 holders
MYI full holder history
BLACKROCK MUNIYIELD QUALITY FUND III, INC. SEC filings
BLACKROCK MUNIYIELD QUALITY FUND III, INC. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 09254E103:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
1
Security
MYI
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 3.9% | -23% | $52,894,277 | +$15,496,261 | 4,760,961 | +41% | RIVERNORTH CAPITAL MANAGEMENT, LLC | 30 Jun 2026 |
As of 30 Sep 2026,
87
institutional investors reported holding
shares of
BLACKROCK MUNIYIELD QUALITY FUND III, INC. - Common (MYI).
This represents
19%
of the company’s total
outstanding shares.
23.51M
Full value: 23,513,750 · shares · 30 Sep 2026122.39M
Full value: 122,389,743 · shares · Stored outstanding share count13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
18%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| MORGAN STANLEY | 3.8% | 4,629,645 | -0.08% | 0% | $44,583,488 |
| Karpus Management, Inc. | 3.7% | 4,467,446 | -18% | 1.3% | $43,021,505 |
| Hennion & Walsh Asset Management, Inc. | 1.9% | 2,295,761 | 0.65% | $22,108,178 | |
| ROBINSON CAPITAL MANAGEMENT, LLC | 1.3% | 1,619,778 | 0% | 8% | $15,598,463 |
| RAYMOND JAMES FINANCIAL INC | 1.2% | 1,478,147 | -1.2% | 0% | $14,234,554 |
| STIFEL FINANCIAL CORP | 1% | 1,253,007 | +6.1% | 0.01% | $12,066,454 |
| Advisors Asset Management, Inc. | 0.81% | 987,278 | 0.22% | $9,507,487 | |
| VAN ECK ASSOCIATES CORP | 0.8% | 982,474 | +0.95% | 0.01% | $9,461,225 |
| LPL Financial LLC | 0.5% | 609,835 | +4.6% | 0% | $5,872,713 |
| CITY OF LONDON INVESTMENT MANAGEMENT CO LTD | 0.43% | 527,505 | 0% | 0.35% | $5,079,873 |
| MacKay Shields LLC | 0.36% | 439,004 | 0% | 0.15% | $4,227,608 |
| Rareview Capital LLC | 0.33% | 402,612 | +4.6% | 1.8% | $3,877,150 |
| Capital Investment Advisors, LLC | 0.32% | 389,350 | -1.4% | 0.05% | $3,749,438 |
| MELFA WEALTH MANAGEMENT, INC. | 0.31% | 382,518 | -0.71% | 2% | $3,683,646 |
| COMMONWEALTH EQUITY SERVICES, LLC | 0.23% | 281,642 | -0.22% | 0% | $2,712,210 |
| Invesco Ltd. | 0.21% | 252,344 | -5.1% | 0% | $2,430,073 |
| Westview Management dba Westview Investment Advisors | 0.18% | 215,469 | +87% | 1% | $2,074,969 |
| Concurrent Investment Advisors, LLC | 0.12% | 142,784 | +3.4% | 0.01% | $1,375,010 |
| HORIZON KINETICS ASSET MANAGEMENT LLC | 0.11% | 136,165 | -0.27% | 0.02% | $1,311,269 |
| Dakota Wealth Management | 0.1% | 118,672 | -18% | 0.02% | $1,142,813 |
| HighTower Advisors, LLC | 0.09% | 114,921 | -6.5% | 0% | $1,106,689 |
| Westchester Capital Management, LLC | 0.09% | 112,436 | 0% | 0.05% | $1,082,759 |
| Indiana Trust & Investment Management Co | 0.07% | 91,249 | 0% | 0.24% | $878,728 |
| RIVERBRIDGE PARTNERS LLC | 0.07% | 87,329 | +23% | 0.02% | $840,977 |
| Moors & Cabot, Inc. | 0.06% | 71,686 | -1.1% | 0.03% | $690,336 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
51
Headline period
Q3 2026
Rows shown
1-25 of 51
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 23,513,750 | $226,495,529 | +$7,994,958 | $9.63 | 87 |
| 2026 Q2 | 38,893,262 | $431,840,764 | -$17,395,777 | $11.11 | 156 |
| 2026 Q1 | 40,830,167 | $429,677,564 | +$226,377,602 | $10.51 | 152 |
| 2025 Q4 | 19,266,355 | $209,291,726 | +$13,140,097 | $10.87 | 109 |
| 2025 Q3 | 17,968,198 | $198,913,458 | -$5,218,555 | $11.08 | 94 |
| 2025 Q2 | 18,443,477 | $193,472,671 | -$3,259,325 | $10.49 | 97 |
| 2025 Q1 | 18,767,865 | $206,464,538 | -$1,795,055 | $10.99 | 100 |
| 2024 Q4 | 19,033,521 | $210,193,582 | +$5,047,292 | $11.04 | 102 |
| 2024 Q3 | 18,489,758 | $221,599,777 | -$16,484,286 | $12.00 | 99 |
| 2024 Q2 | 19,929,043 | $222,799,392 | -$17,497,120 | $11.18 | 107 |
| 2024 Q1 | 21,496,619 | $246,285,989 | -$23,153,306 | $11.46 | 104 |
| 2023 Q4 | 23,525,286 | $273,840,112 | -$21,183,923 | $11.64 | 104 |
| 2023 Q3 | 24,387,314 | $232,904,451 | +$6,820,884 | $9.55 | 102 |
| 2023 Q2 | 23,652,421 | $258,760,380 | -$6,277,061 | $10.94 | 98 |
| 2023 Q1 | 24,222,578 | $274,556,774 | -$1,547,745 | $11.34 | 97 |
| 2022 Q4 | 24,399,682 | $273,456,492 | +$35,126,638 | $11.21 | 106 |
| 2022 Q3 | 21,204,203 | $221,173,545 | -$4,607,869 | $10.43 | 100 |
| 2022 Q2 | 21,811,492 | $254,339,173 | +$48,079,946 | $11.66 | 100 |
| 2022 Q1 | 21,660,604 | $271,780,037 | +$891,810 | $12.55 | 106 |
| 2021 Q4 | 21,487,127 | $318,436,254 | +$20,674,506 | $14.82 | 103 |
| 2021 Q3 | 20,169,184 | $296,095,529 | -$35,725,747 | $14.68 | 98 |
| 2021 Q2 | 22,567,118 | $335,242,936 | -$11,360,710 | $14.85 | 100 |
| 2021 Q1 | 23,381,986 | $333,410,910 | +$19,042,427 | $14.26 | 104 |
| 2020 Q4 | 21,642,655 | $312,671,072 | -$75,447 | $14.45 | 100 |
| 2020 Q3 | 21,646,277 | $291,155,346 | -$3,756,165 | $13.44 | 100 |