Event-Driven Stocks

PIONEER MUNICIPAL HIGH INCOME FUND, INC.

MHI

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Financials

SEC XBRL · annual

No structured XBRL financials available (common for pre-2009 filers, foreign issuers, or companies that never reported as a US public company).

5%+ owners

SEC Schedule 13D / 13G · last 3 yrs

Holders who disclosed a 5%+ stake. 13D signals intent to influence or control; 13G is a passive holding. Latest filing per holder — open it for the exact stake.

Insider transactions

SEC Form 4 · most recent
10 acquisitions2 disposals10 open-market buy(s)net −4.0M shares · last 12
InsiderDateTypeSharesPrice
Saba Capital Management, L.P.10% ownerAug 27, 2025J4.2M$8.59
Bank Of America Corp /De/10% ownerAug 18, 2025J500—
Saba Capital Management, L.P.10% ownerApr 22, 2025Buy9,305$8.78
Saba Capital Management, L.P.10% ownerApr 21, 2025Buy13,343$8.70
Saba Capital Management, L.P.10% ownerApr 11, 2025Buy43,562$8.67
Saba Capital Management, L.P.10% ownerApr 7, 2025Buy3,716$9.04
Saba Capital Management, L.P.10% ownerJan 13, 2025Buy13,343$9.25
Saba Capital Management, L.P.10% ownerJan 8, 2025Buy4,710$9.39
Saba Capital Management, L.P.10% ownerJan 2, 2025Buy5,889$9.35
Saba Capital Management, L.P.10% ownerDec 27, 2024Buy29,049$9.31
Saba Capital Management, L.P.10% ownerDec 23, 2024Buy2,299$9.30
Saba Capital Management, L.P.10% ownerDec 19, 2024Buy28,734$9.38

Headline trade per Form 4 (officers, directors, 10%+ owners). Buy/sell read from the filing's structured data — blank where a field isn't cleanly tagged.

Short interest

FINRA · bi-monthly
SettlementShares shortDays to coverΔ vs prior
Aug 15, 202528,9011.0-42.3%
Jul 31, 202550,0701.0+36.5%
Jul 15, 202536,6791.0-43.0%
Jun 30, 202564,3791.0+0.1%
Jun 13, 202564,3441.1-18.9%

Shares sold short as reported to FINRA. Days-to-cover = short shares ÷ average daily volume — higher means more potential squeeze pressure.

Material events

SEC Form 8-K · most recent

Events the company reported on Form 8-K, labelled by the SEC item code it filed under — its own classification, not our interpretation.

Recent SEC filings

All filings ↗

Event-driven situations (1)