CIK 0000809844
CMU MFS HIGH YIELD MUNICIPAL TRUST
Insider trading from SEC Form 4. Last filing Jan 23, 2026.
MFS HIGH YIELD MUNICIPAL TRUST (CMU) has 6 SEC Form 4 filings on file from 1 insider, the latest filed on Jan 23, 2026. No insider bought or sold on the open market in the last 90 days; rows filed in that time are grants, exercises, tax withholding and other transactions that carry no view on the price.
2 open-market trades have been scored at CMU. The newest: Bulldog Investors, LLP (10% owner) bought $2,373 of stock on Jan 20, 2026, filed Jan 23, 2026, scored 7 (weak).
Last 90 days
Signals
Open-market buys and sells at MFS HIGH YIELD MUNICIPAL TRUST, scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 7Weak | Bulldog Investors, LLP owner buy | $2,373 678 shares | +3% | - | |
| 7Weak | Bulldog Investors, LLP owner buy | $2,373 678 shares | +3% | - |
Transactions
Every row filed, 2 in all.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jan 20, 2026 | Bulldog Investors, LLP owner | POpen-market purchase Common Stock | +678 | $3.50 | $2,373 | 24,878 | Jan 23, 2026 |
| Jan 20, 2026 | Bulldog Investors, LLP owner | POpen-market purchase Common Stock | -678 | $3.50 | $2,373 | 24,878 | Jan 22, 2026 |
Questions about CMU
Answered from the filings on this page, as of the latest one.
Are insiders buying CMU?
No. In the last 90 days no insider at MFS HIGH YIELD MUNICIPAL TRUST bought or sold shares on the open market according to SEC Form 4 filings. The rows on file from that period are grants, exercises, tax withholding or other transactions, which carry no view on the price.
Who was the last insider to trade CMU on the open market?
Bulldog Investors, LLP (10% owner) bought $2,373 of CMU on Jan 20, 2026 and filed the Form 4 on Jan 23, 2026. InsiderTell scored 7 (weak).
How many insiders file Form 4 at MFS HIGH YIELD MUNICIPAL TRUST?
1 person has filed a Form 4 at MFS HIGH YIELD MUNICIPAL TRUST, among them Bulldog Investors, LLP (10% owner). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.