CMU · Insider Trading

MFS High Yield Municipal Trust

Iron condor setups Expected move IV rank history Fibonacci levels Insider trading

Every open-market purchase and sale reported by CMU officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings

most recent

Open-Market Buys

code P

Sales

code S

Reporting Insiders

current holders

CMU — Recent Form 4 Transactions (latest 2026-05-05)

Filed	Insider	Role	Type	Shares	Value
2026-05-05	JPMorgan Chase Bank, N.A.	10%+ Owner	J	−180	—
2026-01-23	LLP Bulldog Investors	10%+ Owner	Buy	+2,034	+$7.12K
2026-01-22	Phillip Goldstein	10%+ Owner	Buy	−2,034	−$7.12K
2024-09-13	JPMorgan Chase Bank, N.A.	10%+ Owner	J	—	—
2024-09-03	JPMorgan Chase Bank, N.A.	10%+ Owner	J	−13	—
2024-08-06	JPMorgan Chase Bank, N.A.	10%+ Owner	J	−77	—
2023-11-13	Saba Capital Management, L.P.	10%+ Owner	U	−1,713,632	−$5.81M
2023-11-13	Saba Capital Management, L.P.	10%+ Owner	Buy	+800	+$2.60K
2023-11-09	Boaz Weinstein	10%+ Owner	MIXED	−1,692,736	−$5.75M
2023-11-07	JPMorgan Chase Bank, N.A.	10%+ Owner	J	−100	—
2023-10-10	Saba Capital Management, L.P.	10%+ Owner	Sell	−10,820	−$33.05K
2023-10-06	Saba Capital Management, L.P.	10%+ Owner	Sell	−42,258	−$130.39K
2023-10-03	Saba Capital Management, L.P.	10%+ Owner	Sell	−12,716	−$39.42K
2023-07-25	Saba Capital Management, L.P.	10%+ Owner	Buy	+92,018	+$303.66K
2023-07-19	Saba Capital Management, L.P.	10%+ Owner	Buy	+1,042	+$3.40K
2023-06-28	Boaz Weinstein	10%+ Owner	Buy	+14,388	+$46.62K
2023-06-22	Saba Capital Management, L.P.	10%+ Owner	Buy	+6,140	+$19.53K
2023-06-08	Saba Capital Management, L.P.	10%+ Owner	Buy	+743,104	+$2.34M
2023-05-23	Boaz Weinstein	10%+ Owner	Buy	+21,846	+$69.47K
2023-05-19	Boaz Weinstein	10%+ Owner	Buy	+358	+$1.15K
2023-05-17	Saba Capital Management, L.P.	10%+ Owner	Buy	+49,294	+$158.24K
2023-05-15	Boaz Weinstein	10%+ Owner	Buy	+30,300	+$96.66K
2023-05-08	Saba Capital Management, L.P.	10%+ Owner	Buy	+13,786	+$43.84K
2022-11-30	JPMorgan Chase Bank, N.A.	10%+ Owner	Sell	−50	—
2021-07-22	CITIGROUP INC	10%+ Owner	J	−3,000	−$75.00M
2016-04-06	CITIGROUP INC	10%+ Owner	J	−2,844	−$71.10M
2012-09-14	CITIGROUP INC	10%+ Owner	MIXED	+1,529	+$39.87M

CMU — Current Insider Holders

Insider	Role	Shares Held	Value
Phillip Goldstein	10%+ Owner	24,878	$83.59K
LLP Bulldog Investors	10%+ Owner	24,878	$83.59K
JPMorgan Chase Bank, N.A.	10%+ Owner	330	$1.11K

CMU Insider Trading FAQ

Who are the insiders at CMU?

3 officers, directors and 10%+ beneficial owners currently report holdings in CMU via SEC Form 4.

Are CMU insiders buying or selling?

Across the 27 most recent Form 4 filings for CMU, 13 were open-market purchases (code P) and 4 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.

How current is CMU insider data?

Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent CMU filing is dated 2026-05-05.

How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the CMU quote page; the site-wide leaderboard is on the insider transactions hub.