BlackRock Municipal Income Fund, Inc.
BlackRock Municipal Income Fund, Inc. (MUI) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MUI · as of Dec 31, 2024
Ownership Breakdown
94
Institutional Holders
▼ 21 vs Q3
$205.10M
Total Inst. Value
▼ $270.60M vs Q3
71.99M
Shares Outstanding
freeFloat 100.00%
16.92M
13F Shares Held
▼ 21.30M vs Q3
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MUI largest shareholders · institutional ownership
Q4 2024 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
KARPUS MANAGEMENT, INC. | 10.56M | 14.50% | 14.50% | $128.03B | Feb 14, 2025 | ▼ 6.97M |
MORGAN STANLEY | 1.69M | 2.32% | 2.32% | $20.46B | May 15, 2025 | ▼ 251.1K |
RIVERNORTH CAPITAL MANAGEMENT, LLC | 346.8K | 47.60% | 47.60% | $4.20B | Feb 14, 2025 | ▼ 2.49M |
PNC FINANCIAL SERVICES GROUP, INC. | 317.9K | 43.63% | 43.63% | $3.85B | Feb 7, 2025 | ▼ 152.4K |
WELLS FARGO & COMPANY/MN | 287.7K | 39.49% | 39.49% | $3.49B | Feb 13, 2025 | ▼ 213.2K |
DAKOTA WEALTH MANAGEMENT | 246.2K | 33.79% | 33.79% | $2.98B | Jan 17, 2025 | ▼ 104.3K |
BANK OF AMERICA CORP /DE/ | 239.3K | 32.84% | 32.84% | $2.90B | Feb 14, 2025 | ▼ 1.11M |
VAN ECK ASSOCIATES CORP | 213.9K | 29.36% | 29.36% | $2.59B | Jan 29, 2025 | ▼ 208.0K |
UBS GROUP AG | 211.1K | 28.97% | 28.97% | $2.56B | Feb 14, 2025 | ▲ 104.4K |
MACKAY SHIELDS LLC | 189.1K | 25.95% | 25.95% | $2.29B | Feb 4, 2025 | ▼ 790.8K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q4 2024 vs prior quarter
Q4 2024
9
Increased
+245.9K shares4
New Positions
first time holders34
Decreased
−15.56M shares0
Sold Out
fully exitedNet shares change (top 50)
15.31M
+245.9K / −15.56M
Net new holders
-21
4 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MUI insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
0
Buy transactions
1
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
BANK OF AMERICA CORP /DE/ 10 percent owner | Jul 8, 2022 | Purchase | 4,075 | $12.20 | $49.7K | 4.1K | Form 4 ↗ |
BANK OF AMERICA CORP /DE/ 10 percent owner | Jul 11, 2022 | Sale | 300 | $12.32 | $3.7K | 3.8K | Form 4 ↗ |
BANK OF AMERICA CORP /DE/ 10 percent owner | Jul 11, 2022 | Sale | 100 | $12.32 | $1.2K | 3.7K | Form 4 ↗ |
BANK OF AMERICA CORP /DE/ 10 percent owner | Jul 11, 2022 | Sale | 100 | $12.32 | $1.2K | 3.6K | Form 4 ↗ |
BANK OF AMERICA CORP /DE/ 10 percent owner | Jul 11, 2022 | Sale | 100 | $12.32 | $1.2K | 3.5K | Form 4 ↗ |
BANK OF AMERICA CORP /DE/ 10 percent owner | Jul 11, 2022 | Sale | 100 | $12.32 | $1.2K | 3.4K | Form 4 ↗ |
BANK OF AMERICA CORP /DE/ 10 percent owner | Jul 11, 2022 | Sale | 348 | $12.32 | $4.3K | 3.0K | Form 4 ↗ |
BANK OF AMERICA CORP /DE/ 10 percent owner | Jul 11, 2022 | Sale | 100 | $12.32 | $1.2K | 2.9K | Form 4 ↗ |
BANK OF AMERICA CORP /DE/ 10 percent owner | Jul 11, 2022 | Sale | 99 | $12.31 | $1.2K | 2.8K | Form 4 ↗ |
BANK OF AMERICA CORP /DE/ 10 percent owner | Jul 11, 2022 | Sale | 100 | $12.30 | $1.2K | 2.7K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
BlackRock Municipal Income Fund, Inc. (MUI) is primarily owned by institutional investors, who hold approximately 23.5% of total shares outstanding. Company insiders own approximately 0.00%, while retail and public investors account for the remaining 76.50%.
The largest institutional shareholder of BlackRock Municipal Income Fund, Inc. is KARPUS MANAGEMENT, INC., holding approximately 10.56 million shares — equal to 14.50% of outstanding shares — as of December 31, 2024.
A total of 94 institutional investors currently hold MUI stock, with a combined institutional value of approximately $205,096,110 as of the most recent 13F filing period.
Frequently asked questions
MUI ownershipBlackRock Municipal Income Fund, Inc. (MUI) is primarily owned by institutional investors, who hold approximately 23.5% of shares. The largest shareholder is KARPUS MANAGEMENT, INC. with a 14.50% stake. Company insiders hold 0.00%. Data sourced from SEC Form 13F as of December 31, 2024.