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RiverNorth Managed Duration Municipal Income Fund, Inc.
$14.87 +0.06 (+0.41%) At close · Jul 2
Market Cap
$293.53M
Shares
19,739,628

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 52
Total Value: $47,815,945
Total Shares: 3,507,804

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 52 13F filers
Top Holder
12.3%
Jun 2023 → Mar 2026 · range 11.9% – 17.5%
of institutional value
Top 5
43.4%
Jun 2023 → Mar 2026 · range 43.4% – 64.5%
of institutional value
Top 10
65.2%
Jun 2023 → Mar 2026 · range 65.2% – 87.4%
of institutional value
HHI
571
Jun 2023 → Mar 2026 · range 571 – 1,005
Broadly held
Showing 52 of 52
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Small ROBINSON CAPITAL MANAGEMENT, LLC $5,879,941 12.30% 431,397
Mega WELLS FARGO & COMPANY/MN $5,388,428 11.27% 395,336
Mega ROYAL BANK OF CANADA Bank $3,269,045 6.84% 239,842
Mega MORGAN STANLEY $3,133,032 6.55% 229,863
Mid Advisors Asset Management, Inc. $3,086,636 6.46% 226,459
Mid U.S. Capital Wealth Advisors, LLC $2,449,692 5.12% 179,728
Mega UBS Group AG $2,297,200 4.80% 168,540
Small ProVise Management Group, LLC $2,288,313 4.79% 167,888
Large Rockefeller Capital Management L.P. $1,812,544 3.79% 132,982
Small Gateway Wealth Partners, LLC $1,572,629 3.29% 115,380
Mid Arkadios Wealth Advisors $1,471,590 3.08% 107,967
Small Wagner Wealth Management, LLC $1,471,590 3.08% 107,967
Large GUGGENHEIM CAPITAL LLC $1,449,100 3.03% 106,317
Mega RAYMOND JAMES FINANCIAL INC $1,443,661 3.02% 105,918
Mega LPL Financial LLC $1,208,926 2.53% 88,696
Large STIFEL FINANCIAL CORP $815,959 1.71% 59,865
Small Samalin Investment Counsel, LLC $743,652 1.56% 54,560
Mid WEDBUSH SECURITIES INC Broker-Dealer $740,109 1.55% 54,300
Mid OPPENHEIMER & CO INC $734,111 1.54% 53,860
Large OSAIC HOLDINGS, INC. $688,560 1.44% 50,518
Mid Apollon Wealth Management, LLC $605,580 1.27% 44,430
Small Estate Planners Group, LLC $573,863 1.20% 42,103
Small XML Financial, LLC $561,556 1.17% 41,200
Large HighTower Advisors, LLC $458,417 0.96% 33,633
Large &PARTNERS $446,218 0.93% 32,738
Large Janney Montgomery Scott LLC $355,743 0.74% 26,100
Mid Stratos Wealth Partners, LTD. $340,545 0.71% 24,985
Small Abel Hall, LLC $272,600 0.57% 20,000
Small River Street Advisors LLC $268,879 0.56% 19,727
Large COMMONWEALTH EQUITY SERVICES, LLC $254,622 0.53% 18,681
Large NewEdge Advisors, LLC $243,295 0.51% 17,850
Mid RIVERNORTH CAPITAL MANAGEMENT, LLC $182,396 0.38% 13,382
Mid AE Wealth Management LLC $181,279 0.38% 13,300
Mid CreativeOne Wealth, LLC $175,731 0.37% 12,893
Micro Closed-End Fund Advisors, Inc. $162,251 0.34% 11,904
Small MELFA WEALTH MANAGEMENT, INC. $149,671 0.31% 10,981
Mid PFG Investments, LLC $142,160 0.30% 10,430
Large FIFTH THIRD BANCORP Bank $81,780 0.17% 6,000
Mid EverSource Wealth Advisors, LLC $81,780 0.17% 6,000
Large Steward Partners Investment Advisory, LLC $81,234 0.17% 5,960
Mid Advisory Services Network, LLC $64,878 0.14% 4,760
Small Noble Wealth Management PBC $59,120 0.12% 4,000
Micro Advocate Investing Services LLC $34,075 0.07% 2,500
Large US BANCORP \DE\ Bank $27,260 0.06% 2,000
Micro Osbon Capital Management LLC $26,155 0.05% 1,919
Mid HARBOUR INVESTMENTS, INC. $17,037 0.04% 1,250
Small West Branch Capital LLC $6,815 0.01% 500
Small Bank of New Hampshire Bank $6,815 0.01% 500
Small HIGHLINE WEALTH PARTNERS LLC $6,133 0.01% 450
Mid HOLLENCREST CAPITAL MANAGEMENT $3,339 0.01% 245
Mega JPMORGAN CHASE & CO $0 0.00% 0
Mid Allworth Financial LP $0 0.00% 0
Key facts CIK 1771226 CUSIP 76882H105 13F (30d) 1 filings 1 filers Visit website

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