MHF · Insider Trading

Western Asset Municipal High Income Fund, Inc

Every open-market purchase and sale reported by MHF 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
8
most recent
Open-Market Buys
7
code P
Sales
1
code S
Reporting Insiders
1
current holders
MHF — Recent Form 4 Transactions (latest 2025-05-28)
FiledInsiderRole TypeSharesValue
2025-05-28 Anthony Grillo Director Buy +1,500 +$10.65K
2019-10-01 Paolo M Cucchi Director Sell −3,000 −$22.63K
2010-11-19 William R Hutchinson Director Buy +5,000 +$36.56K
2010-02-19 William R Hutchinson Director Buy +4,000 +$30.25K
2008-11-25 William R Hutchinson Director Buy +4,000 +$24.28K
2008-07-18 William R Hutchinson Director Buy +1,500 +$11.83K
2008-07-16 William R Hutchinson Director Buy +2,000 +$15.41K
2007-03-26 Daniel P Cronin Director Buy +2,300 +$18.45K
MHF — Current Insider Holders
InsiderRole Shares HeldValue
Anthony Grillo Director 1,500 $9.98K
MHF Insider Trading FAQ
Who are the insiders at MHF?
1 officers, directors and 10%+ beneficial owners currently report holdings in MHF via SEC Form 4.
Are MHF insiders buying or selling?
Across the 8 most recent Form 4 filings for MHF, 7 were open-market purchases (code P) and 1 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is MHF insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent MHF filing is dated 2025-05-28.
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 MHF quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.