BlackRock Municipal Income Fund, Inc.

MUINYSEFinancial Services

$12.09

+$0.37(+3.11%)

Market Cap$870384441

P/E Ratio—

52W High$13.22

52W Low$11.46

Avg Volume394K

Open$11.70

Beta0.56

Overview

BlackRock Municipal Income Fund, Inc. (MUI) Insider Trading

Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.

SEC EDGAR · FMP · MUI · as of Jun 9, 2026

Activity summary

Buy transactions

P-Purchase only

Sell transactions

12 Months

Buy/Sell ratio

1.00

Buy/Sell (by trades)

Overall sentiment

NEUTRAL

↑ Buy 50%Active transactions only · RSU vesting excluded50% Sell ↓

BlackRock Municipal Income Fund, Inc. insiders have shown mixed buying and selling activity over the past 12 Months.

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only

As of Jun 9, 2026

MUI insider buying and selling by quarter

MUI insider selling · MUI insider buying stocks · quarterly insider activity

Total insider buying (incl. awards)Total insider selling

19K9K0

2022 Q3

2022 Q4

2023 Q1

2023 Q2

2023 Q3

2023 Q4

2024 Q1

2024 Q3

Mobile shows last 4Q · Desktop shows full 8Q

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters

As of Jun 9, 2026

Recent insider transactions

MUI executive sell shares · MUI board member insider trading · MUI insider trading SEC filing

Showing 51 most recent · Common Stock · Form 4 only

Scroll horizontally to see all columns

Date	Insider	Type	Shares	Price	Value	After trans.	Filing
Jul 8, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Purchase	4,075	$12.20	$50K	4,075	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	300	$12.32	$4K	3,775	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	100	$12.32	$1K	3,675	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	100	$12.32	$1K	3,575	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	100	$12.32	$1K	3,475	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	100	$12.32	$1K	3,375	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	348	$12.32	$4K	3,027	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	100	$12.32	$1K	2,927	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	99	$12.31	$1K	2,828	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	100	$12.30	$1K	2,728	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	100	$12.30	$1K	2,628	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	100	$12.30	$1K	2,528	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	100	$12.30	$1K	2,428	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	100	$12.29	$1K	2,328	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	100	$12.29	$1K	2,228	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	100	$12.29	$1K	2,128	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	100	$12.29	$1K	2,028	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	100	$12.29	$1K	1,928	Form 4
Jul 11, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	100	$12.29	$1K	1,828	Form 4
Apr 26, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Purchase	400	$12.17	$5K	575	Form 4
Apr 28, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Purchase	270	$12.31	$3K	270	Form 4
Apr 26, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Purchase	100	$12.17	$1K	175	Form 4
Apr 26, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	400	$12.17	$5K	175	Form 4
Apr 26, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Sale	100	$12.17	$1K	75	Form 4
Apr 26, 2022	BANK OF AMERICA CORP /DE/ 10 percent owner	Purchase	75	$12.18	$914	75	Form 4

BANK OF AMERICA CORP /DE/

10 percent owner

Purchase

Date

Jul 8

4,075

Price

$12.20

Value

$50K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

300

Price

$12.32

Value

$4K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

100

Price

$12.32

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

100

Price

$12.32

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

100

Price

$12.32

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

100

Price

$12.32

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

348

Price

$12.32

Value

$4K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

100

Price

$12.32

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

Price

$12.31

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

100

Price

$12.30

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

100

Price

$12.30

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

100

Price

$12.30

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

100

Price

$12.30

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

100

Price

$12.29

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

100

Price

$12.29

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

100

Price

$12.29

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

100

Price

$12.29

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

100

Price

$12.29

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Jul 11

100

Price

$12.29

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Purchase

Date

Apr 26

400

Price

$12.17

Value

$5K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Purchase

Date

Apr 28

270

Price

$12.31

Value

$3K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Purchase

Date

Apr 26

100

Price

$12.17

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Apr 26

400

Price

$12.17

Value

$5K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Sale

Date

Apr 26

100

Price

$12.17

Value

$1K

View Form 4 on SEC.gov

BANK OF AMERICA CORP /DE/

10 percent owner

Purchase

Date

Apr 26

Price

$12.18

Value

$914

View Form 4 on SEC.gov

⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar

1 / 3

▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —

About MUI insider trading

MUI insider trades

BlackRock Municipal Income Fund, Inc. (MUI) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including MUI. Over the past 12 months, 0 insiders have filed transactions with the SEC. MUI insiders have been mixed buying and selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.

For BlackRock Municipal Income Fund, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →

Buy/Sell signal logic

acquisitionOrDisposition field:

A = Acquisition (buy) · D = Disposition (sell)

RSU vesting (M-Exempt) excluded from sentiment

Form 4SEC filing required within 2 business days of any insider transaction

10b5-1Pre-scheduled trading plan that allows insiders to sell on autopilot

Open MktDirect purchase or sale on the open market (excludes awards, options)

Ownership SEC filings Financial statements Price history Forecast & ratings Earnings

Frequently asked questions

MUI insider trading · 5 questions

The insiders of BlackRock Municipal Income Fund, Inc. (MUI) include executives and directors such as MUI, among others. Over the past 12 months, 0 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.

MUI board member insider tradingwho are MUI insidersMUI insider rosterBlackRock Municipal Income Fund, Inc. executives insider activity

▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 9, 2026