Companies: 10,795·Total market cap: $144.5T
BlackRock Municipal Income Fund, Inc.

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
Overview

BlackRock Municipal Income Fund, Inc. (MUI) SEC Filings & 10-K Annual Reports

SEC EDGAR regulatory submissions (10-K, 10-Q, 8-K), latest forms, and full filing history — quick links to financials and earnings below.

SEC EDGAR · data.sec.gov · CIK 0001232860 · MUI · NYSE · as of Jun 9, 2026

Filing snapshot

512
Total Filings
4
Latest Form
2026-05-18
Most Recent
2003
Filing Since

Source: SEC EDGAR (data.sec.gov) · CIK 0001232860 · Updated hourly · Not investment advice

Latest Key Filings

10-QQuarterly Report

No recent filings

8-KCurrent Report
8-K
2025-01-21Material Event
Form 4Insider Activity
Ownership Change Disclosures

Executive & director trade disclosures. Full buy/sell sentiment analysis on the dedicated tab.

SEC Filing History

Hide Form 4 / 144
N-23C3AN-23C3A
N-23C3A
2026-04-08
View
N-CSRSN-CSRS
BLACKROCK MUNICIPAL CREDIT ALPHA PORTFOLIO, INC.
2026-04-07
View
NPORT-PNPORT-P
NPORT-P
2026-03-26
View
N-23C-2N-23C-2
BLACKROCK MUNICIPAL CREDIT ALPHA PORTFOLIO, INC.(MUNEX)
2026-02-27
View
40-17G40-17G
FIDELITY BOND - 40-17G
2026-01-23
View
N-23C3AN-23C3A
N-23C3A
2026-01-08
View
NPORT-PNPORT-P
NPORT-P
2025-12-29
View
486BPOS486BPOS
BLACKROCK MUNICIPAL CREDIT ALPHA PORTFOLIO, INC.
2025-11-26
View
24F-2NT24F-2NT
24F-2NT
2025-10-28
View
N-CENN-CEN
N-CEN
2025-10-14
View
424B3424B3
MUNICIPAL CREDIT ALPHA PORTFOLIO, INC.
2025-10-10
View
N-23C3AN-23C3A
N-23C3A
2025-10-07
View
N-CSRN-CSR
BLACKROCK MUNICIPAL CREDIT ALPHA PORTFOLIO, INC.
2025-10-03
View
SCHEDULE 13DSCHEDULE 13D
SCHEDULE 13D
2025-09-24
View
NPORT-PNPORT-P
NPORT-P
2025-09-24
View
Showing 1–15 of 455 filingsForm 4 / 144 hidden· 512 total in EDGAR

About SEC Filings & 10-K Annual Reports

Data source: SEC EDGAR (data.sec.gov)  |  Updated: Hourly  |  CIK: 0001232860  |  Exchange: NYSE · Financial Services

BlackRock Municipal Income Fund, Inc. (NYSE: MUI) has submitted 512 documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 2003. As a Financial Services sector company with CIK 0001232860, all filings are publicly accessible via the EDGAR database at no cost.

The annual 10-K report is BlackRock Municipal Income Fund, Inc.'s most comprehensive regulatory disclosure. The most recent BlackRock Municipal Income Fund, Inc. 10-K was filed on — for fiscal year ending —. Historical MUI 10-K annual reports are available from 2003 through —.

Investors researching BlackRock Municipal Income Fund, Inc. SEC filings can access 10-K annual reports, quarterly 10-Q reports, material event 8-K filings, and proxy statements directly from the links above. All documents are sourced from the official SEC EDGAR system.

Source: SEC EDGAR · data.sec.gov · SEC Form 10-K · SEC Form 10-Q · SEC Form 8-K2026-06-09

Frequently Asked Questions

MUI SEC Filings · 8 questions

BlackRock Municipal Income Fund, Inc. (MUI) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 512 filings and access original documents at no cost. BlackRock Municipal Income Fund, Inc.'s CIK is 0001232860.

MUI SEC filingsBlackRock Municipal Income Fund, Inc. SEC documentsfind MUI 10-K