MYI Institutional Ownership & Shareholders
BLACKROCK MUNIYIELD QLTY III (MYI) is currently held by 152 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $449.45M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Karpus Management, Inc. is currently the largest disclosed institutional shareholder of MYI tracked by InsiderSet, reporting ownership valued at approximately $60.46M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $55.18M, representing an estimated loss of -8.73% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 66% of the total disclosed MYI value among the investors covered in this analysis. Major shareholders include Karpus Management, Inc., Rivernorth Capital Management, Llc, Morgan Stanley, and several other long-term asset managers with concentrated positions in BLACKROCK MUNIYIELD QLTY III (MYI).
This page ranks the largest institutional MYI shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
152
Total Reported Value
$449.45M
Largest Holder
Karpus Management, Inc.
Largest Position
$60.46M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
130
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Karpus Management, Inc. | 1.74% | 5,442,103 | $60,461,764 | $55,182,924 | -$5,278,840 | -8.73% | |
| Rivernorth Capital Management, Llc | 2.51% | 4,760,961 | $52,894,277 | $48,276,145 | -$4,618,132 | -8.73% | |
| Morgan Stanley | 0.00% | 4,633,185 | $51,474,693 | $46,980,496 | -$4,494,197 | -8.73% | |
| Guggenheim Capital Llc | 0.16% | 2,170,971 | $24,119,488 | $22,013,646 | -$2,105,842 | -8.73% | |
| Hennion & Walsh Asset Management, Inc. | 0.65% | 2,295,761 | $22,108,178 | $23,279,017 | +$1,170,839 | +5.30% | |
| Sit Investment Associates Inc | 0.39% | 1,832,694 | $20,361,000 | $18,583,517 | -$1,777,483 | -8.73% | |
| Robinson Capital Management, Llc | 7.95% | 1,619,778 | $17,995,735 | $16,424,549 | -$1,571,186 | -8.73% | |
| Raymond James Financial Inc | 0.00% | 1,496,850 | $16,630,002 | $15,178,059 | -$1,451,943 | -8.73% | |
| Ubs Group Ag | 0.00% | 1,496,088 | $16,621,538 | $15,170,332 | -$1,451,206 | -8.73% | |
| Stifel Financial Corp | 0.01% | 1,180,601 | $13,116,489 | $11,971,294 | -$1,145,195 | -8.73% | |
| Bank Of America Corp | 0.00% | 1,172,621 | $13,027,816 | $11,890,377 | -$1,137,439 | -8.73% | |
| Van Eck Associates Corp | 0.01% | 973,208 | $10,812,341 | $9,868,329 | -$944,012 | -8.73% | |
| Pathstone Holdings, Llc | 0.04% | 895,285 | $9,409,448 | $9,078,190 | -$331,258 | -3.52% | |
| Wells Fargo & Company/Mn | 0.00% | 681,631 | $7,572,920 | $6,911,738 | -$661,182 | -8.73% | |
| Allspring Global Investments Holdings, Llc | 0.01% | 592,962 | $6,587,808 | $6,012,635 | -$575,173 | -8.73% | |
| Lpl Financial Llc | 0.00% | 583,047 | $6,477,649 | $5,912,097 | -$565,552 | -8.73% | |
| Allianz Asset Management Gmbh | 0.01% | 490,934 | $5,454,277 | $4,978,071 | -$476,206 | -8.73% | |
| Rockefeller Capital Management L.P. | 0.01% | 481,790 | $5,352,693 | $4,885,351 | -$467,342 | -8.73% | |
| City Of London Investment Management Co Ltd | 0.35% | 527,505 | $5,079,873 | $5,348,901 | +$269,028 | +5.30% | |
| Advisors Asset Management, Inc. | 0.07% | 328,115 | $4,862,664 | $3,327,086 | -$1,535,578 | -31.58% | |
| Melfa Wealth Management, Inc. | 2.31% | 385,248 | $4,280,108 | $3,906,415 | -$373,693 | -8.73% | |
| Cohen & Steers, Inc. | 0.01% | 383,952 | $4,266,000 | $3,893,273 | -$372,727 | -8.74% | |
| Mackay Shields Llc | 0.15% | 439,004 | $4,227,608 | $4,451,501 | +$223,893 | +5.30% | |
| Rareview Capital Llc | 2.26% | 385,009 | $4,038,749 | $3,903,991 | -$134,758 | -3.34% | |
| Royal Bank Of Canada | 0.00% | 348,553 | $3,872,000 | $3,534,327 | -$337,673 | -8.72% | |
| Capital Investment Advisors, Llc | 0.05% | 389,350 | $3,749,438 | $3,948,009 | +$198,571 | +5.30% | |
| Commonwealth Equity Services, Llc | 0.00% | 282,258 | $3,135,880 | $2,862,096 | -$273,784 | -8.73% | |
| Invesco Ltd. | 0.00% | 265,918 | $2,954,349 | $2,696,409 | -$257,940 | -8.73% | |
| Fiera Capital Corp | 0.01% | 230,403 | $2,559,777 | $2,336,286 | -$223,491 | -8.73% | |
| Kim, Llc | 0.31% | 205,238 | $2,280,194 | $2,081,113 | -$199,081 | -8.73% | |
| Ameriprise Financial Inc | 0.00% | 185,748 | $2,063,663 | $1,883,485 | -$180,178 | -8.73% | |
| Coastal Bridge Advisors, Llc | 0.12% | 175,514 | $1,949,961 | $1,779,712 | -$170,249 | -8.73% | |
| Pnc Financial Services Group, Inc. | 0.00% | 143,357 | $1,592,696 | $1,453,640 | -$139,056 | -8.73% | |
| Horizon Kinetics Asset Management Llc | 0.02% | 136,538 | $1,516,937 | $1,384,495 | -$132,442 | -8.73% | |
| Osaic Holdings, Inc. | 0.00% | 130,071 | $1,445,102 | $1,318,920 | -$126,182 | -8.73% | |
| 1607 Capital Partners, Llc | 0.12% | 126,885 | $1,409,692 | $1,286,614 | -$123,078 | -8.73% | |
| Concurrent Investment Advisors, Llc | 0.01% | 142,784 | $1,375,010 | $1,447,830 | +$72,820 | +5.30% | |
| Westview Management Dba Westview Investment Advisors | 0.63% | 115,250 | $1,280,428 | $1,168,635 | -$111,793 | -8.73% | |
| Westchester Capital Management, Llc | 0.06% | 112,436 | $1,249,164 | $1,140,101 | -$109,063 | -8.73% | |
| Summit Trail Advisors, Llc | 0.02% | 111,231 | $1,235,777 | $1,127,882 | -$107,895 | -8.73% | |
| Toronto Dominion Bank | 0.00% | 106,071 | $1,178,449 | $1,075,560 | -$102,889 | -8.73% | |
| Estate Planners Group, Llc | 0.50% | 99,844 | $1,109,272 | $1,012,418 | -$96,854 | -8.73% | |
| Bank Of New York Mellon Corp | 0.00% | 87,068 | $967,330 | $882,870 | -$84,460 | -8.73% | |
| Indiana Trust & Investment Management Co | 0.24% | 91,249 | $878,728 | $925,265 | +$46,537 | +5.30% | |
| Moors & Cabot, Inc. | 0.03% | 72,513 | $805,619 | $735,282 | -$70,337 | -8.73% | |
| Riverbridge Partners Llc | 0.02% | 71,237 | $791,442 | $722,343 | -$69,099 | -8.73% | |
| Advisory Services Network, Llc | 0.01% | 69,039 | $767,021 | $700,055 | -$66,966 | -8.73% | |
| Janney Montgomery Scott Llc | 0.00% | 67,530 | $750,000 | $684,754 | -$65,246 | -8.70% | |
| Lido Advisors, Llc | 0.00% | 66,879 | $746,737 | $678,153 | -$68,584 | -9.18% | |
| Chicago Partners Investment Group Llc | 0.01% | 68,058 | $666,968 | $690,108 | +$23,140 | +3.47% |
Frequently asked questions about MYI
Who are the largest institutional holders of MYI?
The largest institutional holders of MYI reported in the latest SEC Form 13F filings include Karpus Management, Inc., Rivernorth Capital Management, Llc, Morgan Stanley, Guggenheim Capital Llc, and Hennion & Walsh Asset Management, Inc.. InsiderSet ranks institutional holders by their latest reported MYI position.
What is MYI institutional ownership?
This page tracks MYI positions reported by institutional investment managers through SEC Form 13F. BLACKROCK MUNIYIELD QLTY III (MYI) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own MYI?
InsiderSet currently tracks 152 institutional managers reporting MYI holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of MYI shareholders.
How much MYI stock do institutions own?
Institutional investment managers disclosed approximately $449.45M in MYI holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was MYI institutional ownership last updated?
The latest MYI institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional MYI holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its MYI position after the reporting date.
Are institutions buying or selling MYI?
Institutional buying and selling can be analyzed by comparing MYI positions across consecutive 13F reporting periods. InsiderSet's MYI Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View MYI ownership changes.
How has MYI institutional ownership changed over time?
InsiderSet tracks MYI institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.