Pioneer Municipal High Income Fund, Inc.

MHIDelisted Aug 27, 2025

SEC CIK: 0001223026

SEC filings (opens in a new tab)

Pioneer Municipal High Income Fund, Inc. was delisted on Aug 27, 2025; its insiders filed their last Form 4 on Sep 2, 2025; 57 institutions reported holding it in 13F filings for Q2 2025, worth $128.8M in total; no superinvestor held it.

Key figures

Insider buys: 0; Open market, last 90 days
Insider sells: 0; Open market, last 90 days
13F holders: 57; Q2 2025, −1 vs. previous quarter
13F value: $128.8M; Reported value at the end of Q2 2025
Superinvestors holding: 0; At the end of Q2 2025

Superinvestors holding MHI, Q2 2025

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No superinvestor reported holding MHI at the end of Q2 2025.

Latest insider trades

Open-market purchases and sales by Pioneer Municipal High Income Fund, Inc. insiders from Form 4, newest first.

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Insider trades
Filed (ET)	Trade date	Filing delay	Insider	Transaction	Shares	Avg price	Value	Holding change	Flags
Apr 24, 2025 (view filing)11:50 AM ET	Apr 22	2 days	Saba Capital Management, L.P. and 1 other10% Owner	PPurchase	+9.30K	$8.78	+$81.7K	+0.2%4.20M after
Apr 22, 2025 (view filing)9:33 AM ET	Apr 21	1 day	Saba Capital Management, L.P. and 1 other10% Owner	PPurchase	+13.3K	$8.70	+$116.1K	+0.3%4.19M after
Apr 14, 2025 (view filing)12:53 PM ET	Apr 11	3 days	Saba Capital Management, L.P. and 1 other10% Owner	PPurchase	+43.6K	$8.67	+$377.7K	+1.1%4.18M after
Apr 8, 2025 (view filing)1:01 PM ET	Apr 7	1 day	Saba Capital Management, L.P. and 1 other10% Owner	PPurchase	+3.72K	$9.04	+$33.6K	+0.1%4.14M after
Jan 14, 2025 (view filing)5:19 PM ET	Jan 13	1 day	Saba Capital Management, L.P. and 1 other10% Owner	PPurchase	+13.3K	$9.25	+$123.4K	+0.3%4.13M after
Jan 10, 2025 (view filing)12:09 PM ET	Jan 8	2 days	Saba Capital Management, L.P. and 1 other10% Owner	PPurchase	+4.71K	$9.39	+$44.2K	+0.1%4.12M after
Jan 6, 2025 (view filing)11:03 AM ET	Jan 2	4 days	Saba Capital Management, L.P. and 1 other10% Owner	PPurchase	+5.89K	$9.35	+$55.1K	+0.1%4.11M after
Dec 31, 2024 (view filing)11:47 AM ET	Dec 27-30	4 days	Saba Capital Management, L.P. and 1 other10% Owner	PPurchase	+50.3K	$9.30	+$468.2K	+1.2%4.11M after	2 lots
Dec 27, 2024 (view filing)1:00 PM ET	Dec 23-26	4 days	Saba Capital Management, L.P. and 1 other10% Owner	PPurchase	+89.1K	$9.28	+$826.9K	+2.2%4.06M after	3 lots
Dec 23, 2024 (view filing)10:08 AM ET	Dec 19-20	4 days	Saba Capital Management, L.P. and 1 other10% Owner	PPurchase	+36.0K	$9.37	+$337.8K	+0.9%3.97M after	2 lots

Top 10 13F holders, Q2 2025

The largest institutional positions in Pioneer Municipal High Income Fund, Inc. at the end of Q2 2025; share changes are against Q1 2025.

See all 57 holders

Institutions holding MHI in Q2 2025
Institution	Shares	Value	% of portfolio	Change in shares	Action
Saba Capital Management, L.P.	4,201,829	$38.5M	1.05%	+69,926+1.7%	Added
Sit Investment Associates Inc	2,363,095	$21.6M	0.46%	+39,188+1.7%	Added
Almitas Capital LLC	1,020,245	$9.35M	2.36%	+749,437+276.7%	Added
Rivernorth Capital Management, LLC	1,003,600	$9.19M	0.51%	−893,529−47.1%	Reduced
Mackay Shields LLC	777,329	$7.12M	0.23%	−4,011−0.5%	Reduced
Wells Fargo & Company	671,619	$6.15M	0.00%	−3,774−0.6%	Reduced
Guggenheim Capital LLC	507,956	$4.65M	0.04%	−9,564−1.8%	Reduced
Morgan Stanley	476,368	$4.36M	0.00%	−87,194−15.5%	Reduced
Hennion & Walsh Asset Management, Inc.	468,923	$4.30M	0.17%	+151,595+47.8%	Added
Pathstone Holdings, LLC	371,333	$3.40M	0.01%	−523,746−58.5%	Reduced

Holders of 5% or more of MHI

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Pioneer Municipal High Income Fund, Inc..

See all 1 holders and filings

Largest holders of MHI from 13D and 13G filings
Holder	Latest form	Stake	Change	First filed	Latest filing	Filing
Sit Investment Associates Inc	13G/A	11.50%2.61M shares	–	Feb 13, 20242 filings	Aug 5, 2025	SEC