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 |
|---|---|---|---|---|---|
| Advisory Services Network, LLC | 67,039 | $704.6K | 0.01% | +8,241+14.0% | Added |
| Lido Advisors, LLC | 66,879 | $706.6K | 0.00% | +66,879 | New |
| Moors & Cabot, Inc. | 67,932 | $714.0K | 0.03% | +35,042+106.5% | Added |
| Chicago Partners Investment Group LLC | 68,016 | $746.1K | 0.02% | +68,016 | New |
| Riverbridge Partners LLC | 73,672 | $774.3K | 0.02% | +73,672 | New |
| Indiana Trust & Investment Management CO | 91,249 | $959.0K | 0.30% | +91,249 | New |
| Bank of New York Mellon Corp | 97,146 | $1.02M | 0.00% | +97,146 | New |
| Estate Planners Group, LLC | 99,352 | $1.04M | 0.50% | −336−0.3% | Reduced |
| Summit Trail Advisors, LLC | 104,480 | $1.10M | 0.02% | +83,227+391.6% | Added |
| HighTower Advisors, LLC | 111,324 | $1.17M | 0.00% | +44,578+66.8% | Added |
| Westchester Capital Management, LLC | 112,436 | $1.18M | 0.06% | +61,247+119.6% | Added |
| Toronto Dominion Bank | 124,532 | $1.31M | 0.00% | +124,532 | New |
| Concurrent Investment Advisors, LLC | 130,177 | $1.37M | 0.01% | +92,711+247.5% | Added |
| Balyasny Asset Management LLC | 134,810 | $1.42M | 0.00% | −5,300−3.8% | Reduced |
| Dakota Wealth Management | 144,652 | $1.52M | 0.03% | +144,652 | New |
| Professional Financial Management, Inc. | 148,721 | $1.56M | 1.63% | +148,721 | New |
| Ameriprise Financial Inc | 163,854 | $1.72M | 0.00% | +138,368+542.9% | Added |
| Scarborough Advisors, LLC | 169,362 | $1.78M | 0.19% | +106,362+168.8% | Added |
| Coastal Bridge Advisors, LLC | 174,428 | $1.83M | 0.13% | +460+0.3% | Added |
| The PNC Financial Services Group, Inc. | 192,252 | $2.02M | 0.00% | +107,926+128.0% | Added |
| Kim, LLC | 204,185 | $2.15M | 0.32% | 00.0% | Unchanged |
| Horizon Kinetics Asset Management LLC | 207,994 | $2.19M | 0.02% | +105,895+103.7% | Added |
| 1607 Capital Partners, LLC | 209,508 | $2.20M | 0.16% | +209,508 | New |
| Fiera Capital Corp | 237,347 | $2.49M | 0.01% | −190,618−44.5% | Reduced |
| Commonwealth Equity Services, LLC | 271,256 | $2.85M | 0.00% | +79,272+41.3% | Added |
| Leo Wealth, LLC | 274,876 | $2.89M | 0.21% | +274,876 | New |
| Invesco Ltd. | 340,602 | $3.58M | 0.00% | +164,266+93.2% | Added |
| Royal Bank of Canada | 349,623 | $3.67M | 0.00% | +129,414+58.8% | Added |
| Cohen & Steers, Inc. | 392,152 | $4.12M | 0.01% | +225,395+135.2% | Added |
| Capital Investment Advisors, LLC | 401,136 | $4.22M | 0.06% | +176,878+78.9% | Added |
| Melfa Wealth Management, LLC | 419,230 | $4.41M | 2.53% | +182,880+77.4% | Added |
| Rockefeller Capital Management L.P. | 449,596 | $4.73M | 0.01% | +200,303+80.3% | Added |
| Rareview Capital LLC | 461,043 | $4.84M | 2.84% | +83,565+22.1% | Added |
| Allianz Asset Management GmbH | 490,934 | $5.16M | 0.01% | 00.0% | Unchanged |
| Mackay Shields LLC | 526,256 | $5.53M | 0.20% | +526,256 | New |
| City of London Investment Management Co Ltd | 527,505 | $5.54M | 0.40% | +136,462+34.9% | Added |
| LPL Financial LLC | 537,247 | $5.65M | 0.00% | +374,229+229.6% | Added |
| Allspring Global Investments Holdings, LLC | 537,780 | $5.65M | 0.01% | +402,688+298.1% | Added |
| Wells Fargo & Company | 621,378 | $6.53M | 0.00% | +226,205+57.2% | Added |
| UBS Group AG | 858,796 | $9.03M | 0.00% | +221,143+34.7% | Added |
| Pathstone Holdings, LLC | 895,285 | $9.41M | 0.04% | +879,585+5,602.5% | Added |
| Van Eck Associates Corp | 948,572 | $9.97M | 0.01% | +444,526+88.2% | Added |
| Advisors Asset Management, Inc. | 981,253 | $10.3M | 0.17% | +468,327+91.3% | Added |
| Stifel Financial Corp | 1,081,095 | $11.4M | 0.01% | +83,566+8.4% | Added |
| Bank of America Corp | 1,173,240 | $12.3M | 0.00% | +516,460+78.6% | Added |
| Raymond James Financial Inc | 1,597,837 | $16.8M | 0.01% | +723,362+82.7% | Added |
| Robinson Capital Management, LLC | 1,619,778 | $17.5M | 7.83% | +1,095,393+208.9% | Added |
| Guggenheim Capital LLC | 2,250,388 | $23.7M | 0.19% | +814,952+56.8% | Added |
| Sit Investment Associates Inc | 2,700,296 | $28.4M | 0.58% | +2,495,608+1,219.2% | Added |
| Morgan Stanley | 4,236,771 | $44.5M | 0.00% | +1,197,554+39.4% | Added |
| Rivernorth Capital Management, LLC | 5,254,333 | $55.2M | 2.79% | +3,502,884+200.0% | Added |
| Karpus Management, Inc. | 5,676,653 | $59.7M | 1.86% | +5,300,945+1,410.9% | Added |
| Hennion & Walsh Asset Management, Inc. | 0 | $0 | 0.00% | −1,554,195−100.0% | Sold out |
| Logan Stone Capital, LLC | 0 | $0 | 0.00% | −43,600−100.0% | Sold out |
| Landscape Capital Management, L.L.C. | 0 | $0 | 0.00% | −39,527−100.0% | Sold out |
| First Western Trust Bank | 0 | $0 | 0.00% | −39,221−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −33,680−100.0% | Sold out |
| Readystate Asset Management LP | 0 | $0 | 0.00% | −32,790−100.0% | Sold out |
| Crescent Grove Advisors, LLC | 0 | $0 | 0.00% | −31,350−100.0% | Sold out |
| Janney Montgomery Scott LLC | 0 | $0 | 0.00% | −28,420−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −28,308−100.0% | Sold out |
| Cresta Advisors, Ltd. | 0 | $0 | 0.00% | −27,000−100.0% | Sold out |
| Pathway Financial Advisers, LLC | 0 | $0 | 0.00% | −20,870−100.0% | Sold out |
| Plancorp, LLC | 0 | $0 | 0.00% | −20,000−100.0% | Sold out |
| TrueMark Investments, LLC | 0 | $0 | 0.00% | −17,943−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −13,662−100.0% | Sold out |
| Cerity Partners LLC | 0 | $0 | 0.00% | −13,339−100.0% | Sold out |
| Permanent Capital Management, LP | 0 | $0 | 0.00% | −12,842−100.0% | Sold out |
| Moody National Bank Trust Division | 0 | $0 | 0.00% | −10,420−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −10,171−100.0% | Sold out |
| Colony Group, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Elyxium Wealth, LLC | 0 | $0 | 0.00% | −6,316−100.0% | Sold out |
| Wolverine Asset Management LLC | 0 | $0 | 0.00% | −2,884−100.0% | Sold out |
| Prestige Wealth Management Group LLC | 0 | $0 | 0.00% | −2,488−100.0% | Sold out |
| Comerica Bank | – | – | – | – | Not filed |
| Trust Co of Vermont | – | – | – | – | Not filed |