BLACKROCK MUNIYIELD QLTY III (MYI) Institutional Shareholders
BLACKROCK MUNIYIELD QLTY III (MYI) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $383.06M in MYI holdings during the latest filing period.
Karpus Management, Inc. is currently the largest disclosed institutional shareholder of MYI tracked by InsiderSet, reporting ownership valued at approximately $59.66M in its March 31, 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 $60.51M, representing an estimated gain of +1.43% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 68% 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
$383.06M
Largest Holder
Karpus Management, Inc.
Largest Position
$59.66M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
185
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Karpus Management, Inc. | 1.86% | 5,676,653 | $59,661,628 | $60,513,121 | +$851,493 | +1.43% | |
| Rivernorth Capital Management, Llc | 2.76% | 5,254,333 | $55,223,040 | $56,011,190 | +$788,150 | +1.43% | |
| Morgan Stanley | 0.00% | 4,236,771 | $44,528,475 | $45,163,979 | +$635,504 | +1.43% | |
| Guggenheim Capital Llc | 0.19% | 2,250,388 | $23,651,578 | $23,989,136 | +$337,558 | +1.43% | |
| Robinson Capital Management, Llc | 7.83% | 1,619,778 | $17,493,603 | $17,266,833 | -$226,770 | -1.30% | |
| Raymond James Financial Inc | 0.01% | 1,597,837 | $16,793,266 | $17,032,942 | +$239,676 | +1.43% | |
| Bank Of America Corp | 0.00% | 1,173,240 | $12,330,750 | $12,506,738 | +$175,988 | +1.43% | |
| Stifel Financial Corp | 0.01% | 1,081,095 | $11,362,308 | $11,524,473 | +$162,165 | +1.43% | |
| Advisors Asset Management, Inc. | 0.17% | 981,253 | $10,312,969 | $10,460,157 | +$147,188 | +1.43% | |
| Pathstone Holdings, Llc | 0.04% | 895,285 | $9,409,448 | $9,543,738 | +$134,290 | +1.43% | |
| Ubs Group Ag | 0.00% | 858,796 | $9,025,946 | $9,154,765 | +$128,819 | +1.43% | |
| Wells Fargo & Company/Mn | 0.00% | 621,378 | $6,530,680 | $6,623,889 | +$93,209 | +1.43% | |
| City Of London Investment Management Co Ltd | 0.35% | 527,505 | $5,860,581 | $5,623,203 | -$237,378 | -4.05% | |
| Allspring Global Investments Holdings, Llc | 0.01% | 537,780 | $5,652,068 | $5,732,735 | +$80,667 | +1.43% | |
| Lpl Financial Llc | 0.00% | 537,247 | $5,646,467 | $5,727,053 | +$80,586 | +1.43% | |
| Allianz Asset Management Gmbh | 0.01% | 490,934 | $5,159,716 | $5,233,356 | +$73,640 | +1.43% | |
| Mackay Shields Llc | 0.16% | 439,004 | $4,877,335 | $4,679,783 | -$197,552 | -4.05% | |
| Rockefeller Capital Management L.P. | 0.01% | 449,596 | $4,725,258 | $4,792,693 | +$67,435 | +1.43% | |
| Melfa Wealth Management, Inc. | 2.31% | 385,248 | $4,280,108 | $4,106,744 | -$173,364 | -4.05% | |
| Rareview Capital Llc | 2.26% | 385,009 | $4,038,749 | $4,104,196 | +$65,447 | +1.62% | |
| Royal Bank Of Canada | 0.00% | 349,623 | $3,675,000 | $3,726,981 | +$51,981 | +1.41% | |
| Invesco Ltd. | 0.00% | 340,602 | $3,579,727 | $3,630,817 | +$51,090 | +1.43% | |
| Commonwealth Equity Services, Llc | 0.00% | 282,258 | $3,135,880 | $3,008,870 | -$127,010 | -4.05% | |
| Leo Wealth, Llc | 0.21% | 274,876 | $2,888,946 | $2,930,178 | +$41,232 | +1.43% | |
| Fiera Capital Corp | 0.01% | 237,347 | $2,494,517 | $2,530,119 | +$35,602 | +1.43% | |
| 1607 Capital Partners, Llc | 0.16% | 209,508 | $2,201,929 | $2,233,355 | +$31,426 | +1.43% | |
| Horizon Kinetics Asset Management Llc | 0.02% | 207,994 | $2,186,017 | $2,217,216 | +$31,199 | +1.43% | |
| Kim, Llc | 0.32% | 204,185 | $2,145,984 | $2,176,612 | +$30,628 | +1.43% | |
| Scarborough Advisors, Llc | 0.21% | 169,362 | $1,854,514 | $1,805,399 | -$49,115 | -2.65% | |
| Coastal Bridge Advisors, Llc | 0.13% | 174,428 | $1,833,240 | $1,859,402 | +$26,162 | +1.43% | |
| Ameriprise Financial Inc | 0.00% | 163,854 | $1,722,106 | $1,746,684 | +$24,578 | +1.43% | |
| Concurrent Investment Advisors, Llc | 0.01% | 138,130 | $1,534,624 | $1,472,466 | -$62,158 | -4.05% | |
| Professional Financial Management, Inc. | 1.56% | 138,060 | $1,533,847 | $1,471,720 | -$62,127 | -4.05% | |
| Pnc Financial Services Group, Inc. | 0.00% | 144,793 | $1,521,774 | $1,543,493 | +$21,719 | +1.43% | |
| Dakota Wealth Management | 0.03% | 144,652 | $1,520,293 | $1,541,990 | +$21,697 | +1.43% | |
| Balyasny Asset Management L.P. | 0.00% | 134,810 | $1,416,853 | $1,437,075 | +$20,222 | +1.43% | |
| Toronto Dominion Bank | 0.00% | 124,532 | $1,308,831 | $1,327,511 | +$18,680 | +1.43% | |
| Westview Management Dba Westview Investment Advisors | 0.63% | 115,250 | $1,280,428 | $1,228,565 | -$51,863 | -4.05% | |
| Westchester Capital Management, Llc | 0.06% | 112,436 | $1,181,702 | $1,198,568 | +$16,866 | +1.43% | |
| Hightower Advisors, Llc | 0.00% | 111,324 | $1,170,015 | $1,186,714 | +$16,699 | +1.43% | |
| Summit Trail Advisors, Llc | 0.02% | 104,480 | $1,098,085 | $1,113,757 | +$15,672 | +1.43% | |
| Estate Planners Group, Llc | 0.50% | 99,352 | $1,044,192 | $1,059,092 | +$14,900 | +1.43% | |
| Bank Of New York Mellon Corp | 0.00% | 97,146 | $1,021,010 | $1,035,576 | +$14,566 | +1.43% | |
| Indiana Trust & Investment Management Co | 0.28% | 91,249 | $1,013,776 | $972,714 | -$41,062 | -4.05% | |
| Riverbridge Partners Llc | 0.02% | 71,237 | $791,442 | $759,386 | -$32,056 | -4.05% | |
| Chicago Partners Investment Group Llc | 0.01% | 68,016 | $731,172 | $725,051 | -$6,121 | -0.84% | |
| Moors & Cabot, Inc. | 0.03% | 67,932 | $713,965 | $724,155 | +$10,190 | +1.43% | |
| Lido Advisors, Llc | 0.00% | 66,879 | $706,610 | $712,930 | +$6,320 | +0.89% | |
| Advisory Services Network, Llc | 0.01% | 67,039 | $704,578 | $714,636 | +$10,058 | +1.43% | |
| Noble Wealth Management Pbc | 0.32% | 62,472 | $694,064 | $665,952 | -$28,112 | -4.05% |
Frequently asked questions about MYI
Who owns the most MYI stock?
The largest holders of MYI are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for BLACKROCK MUNIYIELD QLTY III (MYI).
Is MYI widely held by superinvestors?
Many widely followed stocks like MYI appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly MYI is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.