BlackRock Muniyield Quality Fund III, Inc.
MYI- Exchange
- NYSE
- SEC CIK
- 0000883412
No open-market purchases or sales by BlackRock Muniyield Quality Fund III, Inc. insiders were filed in the last 90 days; 156 institutions reported holding it in 13F filings for Q2 2026, worth $431.8M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in BlackRock Muniyield Quality Fund III, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 152
- +45 vs. Q4 2025
- Shares held
- 40.8M
- +21.6M (+112.0%) vs. Q4 2025
- Total value
- $429.7M
- +$220.5M (+105.4%) vs. Q4 2025
- New holders
- 67
- 57 more added
- Sold out
- 22
- 8 more reduced
2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MYI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 156 | $431.8M |
| Q1 2026 | 152 | $429.7M |
| Q4 2025 | 109 | $209.3M |
| Q3 2025 | 94 | $198.9M |
| Q2 2025 | 97 | $193.5M |
| Q1 2025 | 100 | $206.5M |
| Q4 2024 | 102 | $210.2M |
| Q3 2024 | 100 | $221.6M |
| Q2 2024 | 108 | $223.1M |
| Q1 2024 | 104 | $246.3M |
| Q4 2023 | 105 | $273.8M |
| Q3 2023 | 102 | $232.9M |
| Q2 2023 | 98 | $258.8M |
| Q1 2023 | 98 | $274.8M |
| Q4 2022 | 107 | $273.4M |
| Q3 2022 | 101 | $221.3M |
| Q2 2022 | 101 | $254.5M |
| Q1 2022 | 106 | $267.0M |
| Q4 2021 | 104 | $318.4M |
| Q3 2021 | 100 | $296.1M |
| Q2 2021 | 104 | $335.3M |
| Q1 2021 | 105 | $333.4M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding BlackRock Muniyield Quality Fund III, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| St Germain D J Co Inc | 79 | $830 | 0.00% | +79 | New |
| Mather Group, LLC. | 212 | $2.23K | 0.00% | +212 | New |
| Smartleaf Asset Management LLC | 244 | $2.54K | 0.00% | +244 | New |
| Delta Asset Management LLC | 296 | $3.11K | 0.00% | +296 | New |
| Hilton Head Capital Partners, LLC | 441 | $4.63K | 0.00% | 00.0% | Unchanged |
| Bayban | 478 | $5.02K | 0.00% | 00.0% | Unchanged |
| Highline Wealth Partners LLC | 500 | $5.25K | 0.00% | 00.0% | Unchanged |
| Abound Wealth Management | 572 | $6.01K | 0.00% | +572 | New |
| WPG Advisers, LLC | 655 | $6.88K | 0.01% | +351+115.5% | Added |
| Brown, Lisle/Cummings, Inc. | 655 | $6.88K | 0.00% | +655 | New |
| BlackRock, Inc. | 715 | $7.51K | 0.00% | +715 | New |
| Farther Finance Advisors, LLC | 747 | $7.93K | 0.00% | +747 | New |
| Penserra Capital Management LLC | 992 | $10.0K | 0.00% | +992 | New |
| GHP Investment Advisors, Inc. | 1,178 | $12.4K | 0.00% | +1,178 | New |
| Mascoma Wealth Management LLC | 1,218 | $12.8K | 0.00% | +1,218 | New |
| AdvisorNet Financial, Inc | 1,537 | $16.2K | 0.00% | 00.0% | Unchanged |
| Capital Analysts, LLC | 1,721 | $18.0K | 0.00% | +1,278+288.5% | Added |
| PlanVest Financial, Inc | 1,896 | $19.9K | 0.02% | +1,896 | New |
| Private Trust Co NA | 1,963 | $20.6K | 0.00% | +1,963 | New |
| Bartlett & Co. Wealth Management LLC | 1,931 | $20.7K | 0.00% | +1,931 | New |
| ORG Wealth Partners, LLC | 2,003 | $21.1K | 0.00% | +1,022+104.2% | Added |
| Allworth Financial LP | 2,008 | $21.1K | 0.00% | +2,008 | New |
| Pinnacle Wealth Planning Services, Inc. | 2,363 | $24.8K | 0.00% | +1,278+117.8% | Added |
| Northwestern Mutual Wealth Management Co | 2,752 | $28.9K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 3,160 | $33.2K | 0.00% | +3,160 | New |
| Ameritas Advisory Services, LLC | 3,160 | $33.2K | 0.00% | +3,160 | New |
| Bessemer Group Inc | 3,500 | $37.0K | 0.00% | 00.0% | Unchanged |
| Anchor Investment Management, LLC | 4,001 | $42.1K | 0.00% | +726+22.2% | Added |
| Geneos Wealth Management Inc. | 4,042 | $42.5K | 0.00% | +4,042 | New |
| EverSource Wealth Advisors, LLC | 4,173 | $43.9K | 0.00% | +4,173 | New |
| CWM, LLC | 4,220 | $44.4K | 0.00% | +4,220 | New |
| GWM Advisors LLC | 5,132 | $53.9K | 0.00% | −69,125−93.1% | Reduced |
| Harbour Investments, Inc. | 5,200 | $54.7K | 0.00% | 00.0% | Unchanged |
| Blue Bell Private Wealth Management, LLC | 5,224 | $54.9K | 0.01% | +5,224 | New |
| Bokf, NA | 6,204 | $65.2K | 0.00% | +6,204 | New |
| Gould Capital, LLC | 6,350 | $66.7K | 0.04% | 00.0% | Unchanged |
| Fifth Third Bancorp | 8,200 | $86.2K | 0.00% | +8,200 | New |
| Citizens National Bank Trust Department | 9,830 | $103.3K | 0.02% | +9,830 | New |
| Commerce Bank | 10,000 | $105.1K | 0.00% | 00.0% | Unchanged |
| Chung Wu Investment Group, LLC | 10,000 | $105.1K | 0.09% | 00.0% | Unchanged |
| NWF Advisory Services Inc. | 10,115 | $106.3K | 0.01% | +10,115 | New |
| Citadel Advisors LLC | 10,395 | $109.3K | 0.00% | −7,809−42.9% | Reduced |
| Chapin Davis, Inc. | 10,500 | $110.4K | 0.02% | +10,500 | New |
| Future Financial Wealth Managment LLC | 10,000 | $110.4K | 0.07% | 00.0% | Unchanged |
| Creative Planning | 10,993 | $115.5K | 0.00% | +976+9.7% | Added |
| Rothschild Investment LLC | 11,500 | $120.9K | 0.01% | 00.0% | Unchanged |
| Alesco Advisors LLC | 11,800 | $124.0K | 0.00% | 00.0% | Unchanged |
| Merit Financial Group, LLC | 11,939 | $125.5K | 0.00% | +11,939 | New |
| Goldman Sachs Group Inc | 12,949 | $136.1K | 0.00% | +2,486+23.8% | Added |
| Coastal Investment Advisors, Inc. | 13,275 | $139.5K | 0.05% | +13,275 | New |
| CX Institutional | 14,000 | $147.0K | 0.00% | 00.0% | Unchanged |
| Aviance Capital Partners, LLC | 14,347 | $150.8K | 0.02% | +14,347 | New |
| Virtu Financial LLC | 14,498 | $152.0K | 0.01% | −26,839−64.9% | Reduced |
| Disciplined Investors, L.L.C. | 14,500 | $152.4K | 0.09% | 00.0% | Unchanged |
| Savvy Advisors, Inc. | 15,417 | $162.0K | 0.00% | +15,417 | New |
| First Trust Advisors LP | 15,751 | $165.5K | 0.00% | 00.0% | Unchanged |
| Nomura Holdings Inc | 16,000 | $168.2K | 0.00% | +16,000 | New |
| RSM US Wealth Management LLC | 16,011 | $168.9K | 0.00% | +16,011 | New |
| Mariner, LLC | 16,453 | $172.9K | 0.00% | +64+0.4% | Added |
| Equitable Holdings, Inc. | 16,199 | $176.0K | 0.00% | +300+1.9% | Added |
| M&T Bank Corp | 16,994 | $178.3K | 0.00% | +16,994 | New |
| Fortitude Advisory Group L.L.C. | 18,010 | $189.3K | 0.09% | +18,010 | New |
| Truist Financial Corp | 18,980 | $199.5K | 0.00% | +18,980 | New |
| Central Trust Co | 19,000 | $199.7K | 0.00% | +19,000 | New |
| Private Advisor Group, LLC | 19,100 | $200.7K | 0.00% | 00.0% | Unchanged |
| Ashton Thomas Private Wealth, LLC | 19,500 | $204.9K | 0.00% | −18,779−49.1% | Reduced |
| Westview Management dba Westview Investment Advisors | 19,900 | $209.1K | 0.11% | +300+1.5% | Added |
| Camelot Portfolios, LLC | 21,110 | $221.9K | 0.17% | +1,379+7.0% | Added |
| Daner Wealth Management, LLC | 20,417 | $223.6K | 0.13% | 00.0% | Unchanged |
| Davis Investment Partners, LLC | 25,839 | $271.6K | 0.10% | +25,839 | New |
| Northern Trust Corp | 26,494 | $278.5K | 0.00% | +26,494 | New |
| US Bancorp | 26,622 | $279.8K | 0.00% | +4,084+18.1% | Added |
| SFMG, LLC | 26,645 | $280.0K | 0.02% | +13,119+97.0% | Added |
| River Street Advisors LLC | 26,766 | $281.3K | 0.10% | +26,766 | New |
| Verdence Capital Advisors LLC | 26,965 | $283.4K | 0.02% | +26,965 | New |
| Steward Partners Investment Advisory, LLC | 27,209 | $286.0K | 0.00% | +12,042+79.4% | Added |
| Eastern Bank | 28,320 | $297.6K | 0.01% | +28,320 | New |
| Yakira Capital Management, Inc. | 28,662 | $301.2K | 0.09% | +28,662 | New |
| Benjamin Edwards Inc | 29,161 | $306.5K | 0.00% | +29,161 | New |
| Mercer Global Advisors Inc | 29,247 | $307.4K | 0.00% | +8,261+39.4% | Added |
| Closed-End Fund Advisors, Inc. | 30,881 | $324.6K | 0.33% | +30,881 | New |
| U.S. Capital Wealth Advisors, LLC | 31,609 | $332.2K | 0.01% | +31,609 | New |
| Virtue Asset Management LLC | 35,606 | $374.2K | 0.30% | +35,606 | New |
| Nuveen, LLC | 36,296 | $381.5K | 0.00% | +36,296 | New |
| Stratos Wealth Partners, LTD. | 36,806 | $386.8K | 0.00% | +36,806 | New |
| Integrated Wealth Concepts LLC | 37,434 | $393.4K | 0.00% | +37,434 | New |
| Kapstone Financial Advisors LLC | 38,625 | $405.9K | 0.20% | +38,625 | New |
| Cetera Investment Advisers | 39,140 | $411.4K | 0.00% | +16,932+76.2% | Added |
| Wiley Bros.-Aintree Capital, LLC | 41,632 | $437.6K | 0.00% | +19,078+84.6% | Added |
| Advisor Group Holdings, Inc. | 43,409 | $456.2K | 0.00% | +20,317+88.0% | Added |
| Cambridge Investment Research Advisors, Inc. | 43,557 | $458.0K | 0.00% | +43,557 | New |
| Kestra Advisory Services, LLC | 44,477 | $469.4K | 0.00% | +28,602+180.2% | Added |
| Hollencrest Capital Management | 46,276 | $486.4K | 0.02% | +23,380+102.1% | Added |
| Oppenheimer & Co Inc | 51,604 | $542.4K | 0.01% | +51,604 | New |
| Jane Street Group, LLC | 53,544 | $562.7K | 0.00% | −45,314−45.8% | Reduced |
| Noble Wealth Management PBC | 53,672 | $564.1K | 0.29% | +53,672 | New |
| Callahan Advisors, LLC | 55,692 | $585.3K | 0.05% | +55,692 | New |
| Wellspring Financial Advisors, LLC | 56,563 | $594.5K | 0.04% | +56,563 | New |
| Atala Financial Inc | 54,739 | $609.8K | 0.41% | +54,739 | New |
| Ackerman Capital Advisors, LLC | 61,212 | $643.3K | 0.13% | +45,638+293.0% | Added |