MFS High Yield Municipal Trust
CMUDelisted Jun 8, 2026- SEC CIK
- 0000809844
MFS High Yield Municipal Trust was delisted on Jun 8, 2026; its insiders filed their last Form 4 on Aug 11, 2026; 45 institutions reported holding it in 13F filings for Q1 2026, worth $45.5M in total; no superinvestor held it.
13F holders, Q1 2026
Institutional positions in MFS High Yield Municipal Trust 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
CMU is no longer listed, so this page shows Q1 2026. 13F filings for later quarters list far fewer holders.
- Institutional holders
- 45
- +4 vs. Q4 2025
- Shares held
- 12.7M
- +92.4K (+0.7%) vs. Q4 2025
- Total value
- $45.5M
- +$1.22M (+2.8%) vs. Q4 2025
- New holders
- 8
- 12 more added
- Sold out
- 4
- 10 more reduced
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CMU 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 | 0 | $0 |
| Q1 2026 | 45 | $45.5M |
| Q4 2025 | 41 | $44.3M |
| Q3 2025 | 39 | $42.4M |
| Q2 2025 | 38 | $39.9M |
| Q1 2025 | 39 | $42.4M |
| Q4 2024 | 42 | $39.2M |
| Q3 2024 | 48 | $33.8M |
| Q2 2024 | 52 | $30.8M |
| Q1 2024 | 51 | $29.2M |
| Q4 2023 | 51 | $30.0M |
| Q3 2023 | 49 | $33.5M |
| Q2 2023 | 48 | $30.4M |
| Q1 2023 | 47 | $26.2M |
| Q4 2022 | 47 | $22.5M |
| Q3 2022 | 44 | $17.4M |
| Q2 2022 | 47 | $17.6M |
| Q1 2022 | 39 | $17.0M |
| Q4 2021 | 37 | $15.3M |
| Q3 2021 | 34 | $13.1M |
| Q2 2021 | 31 | $10.4M |
| Q1 2021 | 34 | $11.8M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding MFS High Yield Municipal Trust; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Bulldog Investors, LLP | 3,531,732 | $12.6M | 2.84% | −61,925−1.7% | Reduced |
| Rivernorth Capital Management, LLC | 2,955,950 | $10.6M | 0.53% | +325,054+12.4% | Added |
| Almitas Capital LLC | 1,497,718 | $5.36M | 1.21% | 00.0% | Unchanged |
| Icon Advisers Inc | 731,734 | $2.62M | 0.61% | −89,722−10.9% | Reduced |
| Morgan Stanley | 710,702 | $2.54M | 0.00% | +319,091+81.5% | Added |
| City of London Investment Management Co Ltd | 676,122 | $2.42M | 0.18% | +107,873+19.0% | Added |
| Bank of America Corp | 405,971 | $1.45M | 0.00% | 00.0% | Unchanged |
| Allspring Global Investments Holdings, LLC | 377,111 | $1.35M | 0.00% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 354,378 | $1.27M | 0.00% | +35,963+11.3% | Added |
| Guggenheim Capital LLC | 315,595 | $1.13M | 0.01% | +315,595 | New |
| Lido Advisors, LLC | 146,367 | $524.0K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 129,606 | $464.0K | 0.00% | −109,224−45.7% | Reduced |
| Melfa Wealth Management, LLC | 124,236 | $444.8K | 0.26% | +113+0.1% | Added |
| Matisse Capital | 98,712 | $353.4K | 0.15% | −163,496−62.4% | Reduced |
| Evolve Private Wealth, LLC | 91,331 | $327.0K | 0.02% | −1,272−1.4% | Reduced |
| LPL Financial LLC | 60,315 | $215.9K | 0.00% | +323+0.5% | Added |
| Advisor Group Holdings, Inc. | 46,113 | $165.1K | 0.00% | −18,110−28.2% | Reduced |
| Raymond James Financial Inc | 43,988 | $157.5K | 0.00% | −4,229−8.8% | Reduced |
| Equitable Holdings, Inc. | 33,335 | $117.0K | 0.00% | +611+1.9% | Added |
| Pathstone Holdings, LLC | 30,929 | $110.7K | 0.00% | 00.0% | Unchanged |
| Novak & Powell Financial Services, Inc. | 30,789 | $110.2K | 0.06% | +424+1.4% | Added |
| Cetera Investment Advisers | 30,249 | $108.3K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 27,368 | $98.0K | 0.00% | +8,972+48.8% | Added |
| Cambridge Investment Research Advisors, Inc. | 26,138 | $94.0K | 0.00% | +87+0.3% | Added |
| Blue Bell Private Wealth Management, LLC | 20,917 | $74.9K | 0.01% | −40.0% | Reduced |
| Rockefeller Capital Management L.P. | 20,000 | $71.6K | 0.00% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 18,540 | $66.4K | 0.00% | +18,540 | New |
| HighTower Advisors, LLC | 17,365 | $62.2K | 0.00% | +17,365 | New |
| Fisher Asset Management, LLC | 16,847 | $60.3K | 0.00% | +16,847 | New |
| Spirepoint Private Client, LLC | 16,247 | $58.2K | 0.01% | 00.0% | Unchanged |
| Cohen & Steers, Inc. | 15,000 | $54.0K | 0.00% | 00.0% | Unchanged |
| WealthTrust Asset Management, LLC | 14,229 | $50.9K | 0.03% | +14,229 | New |
| Closed-End Fund Advisors, Inc. | 13,091 | $46.9K | 0.05% | 00.0% | Unchanged |
| International Assets Investment Management, LLC | 12,924 | $46.0K | 0.00% | +60+0.5% | Added |
| Kestra Advisory Services, LLC | 12,756 | $45.7K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 11,851 | $42.4K | 0.00% | −1,852−13.5% | Reduced |
| Mesirow Financial Investment Management, Inc. | 11,835 | $42.4K | 0.00% | +162+1.4% | Added |
| Integrated Wealth Concepts LLC | 11,696 | $41.9K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 9,609 | $34.4K | 0.00% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 2,024 | $7.25K | 0.00% | +2,024 | New |
| Independence Bank of Kentucky | 2,000 | $7.16K | 0.00% | −860−30.1% | Reduced |
| Rothschild Investment LLC | 1,537 | $5.50K | 0.00% | 00.0% | Unchanged |
| Highline Wealth Partners LLC | 1,000 | $3.58K | 0.00% | +1,000 | New |
| Mascoma Wealth Management LLC | 844 | $3.02K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 825 | $2.95K | 0.00% | +825 | New |
| Thomas J. Herzfeld Advisors, Inc. | 0 | $0 | 0.00% | −558,611−100.0% | Sold out |
| Sit Investment Associates Inc | 0 | $0 | 0.00% | −47,357−100.0% | Sold out |
| Mutual Advisors, LLC | 0 | $0 | 0.00% | −20,998−100.0% | Sold out |
| Noble Wealth Management PBC | 0 | $0 | 0.00% | −15,100−100.0% | Sold out |