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RiverNorth Managed Duration Municipal Income Fund, Inc.

RMM
Exchange
NYSE
SEC CIK
0001771226

No open-market purchases or sales by RiverNorth Managed Duration Municipal Income Fund, Inc. insiders were filed in the last 90 days; 53 institutions reported holding it in 13F filings for Q2 2026, worth $55.9M in total; no superinvestor holds it.

13F holders, Q3 2025

Institutional positions in RiverNorth Managed Duration Municipal Income Fund, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
51
0 vs. Q2 2025
Shares held
2.93M
−883.7K (−23.2%) vs. Q2 2025
Total value
$41.4M
−$9.71M (−19.0%) vs. Q2 2025
New holders
10
15 more added
Sold out
10
13 more reduced

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting RMM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 51 institutions
Q1 2021: 29 institutionsQ2 2021: 29 institutionsQ3 2021: 25 institutionsQ4 2021: 27 institutionsQ1 2022: 30 institutionsQ2 2022: 28 institutionsQ3 2022: 28 institutionsQ4 2022: 33 institutionsQ1 2023: 34 institutionsQ2 2023: 31 institutionsQ3 2023: 31 institutionsQ4 2023: 40 institutionsQ1 2024: 43 institutionsQ2 2024: 43 institutionsQ3 2024: 39 institutionsQ4 2024: 46 institutionsQ1 2025: 44 institutionsQ2 2025: 51 institutionsQ3 2025: 51 institutionsQ4 2025: 57 institutionsQ1 2026: 52 institutionsQ2 2026: 53 institutions
Value heldQ3 2025: $41.4M
Q1 2021: $58.7MQ2 2021: $56.4MQ3 2021: $51.3MQ4 2021: $44.0MQ1 2022: $33.5MQ2 2022: $29.9MQ3 2022: $29.1MQ4 2022: $31.6MQ1 2023: $30.5MQ2 2023: $37.3MQ3 2023: $33.6MQ4 2023: $41.4MQ1 2024: $45.8MQ2 2024: $49.0MQ3 2024: $51.5MQ4 2024: $46.3MQ1 2025: $52.4MQ2 2025: $51.1MQ3 2025: $41.4MQ4 2025: $45.5MQ1 2026: $48.1MQ2 2026: $55.9M
Institutions holding RMM and their total value by quarter
QuarterHoldersValue
Q2 202653$55.9M
Q1 202652$48.1M
Q4 202557$45.5M
Q3 202551$41.4M
Q2 202551$51.1M
Q1 202544$52.4M
Q4 202446$46.3M
Q3 202439$51.5M
Q2 202443$49.0M
Q1 202443$45.8M
Q4 202340$41.4M
Q3 202331$33.6M
Q2 202331$37.3M
Q1 202334$30.5M
Q4 202233$31.6M
Q3 202228$29.1M
Q2 202228$29.9M
Q1 202230$33.5M
Q4 202127$44.0M
Q3 202125$51.3M
Q2 202129$56.4M
Q1 202129$58.7M

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding RiverNorth Managed Duration Municipal Income Fund, Inc.; share changes are against Q2 2025.

Institutions holding RMM in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Wells Fargo & Company511,731$7.24M0.00%−44,938−8.1%Reduced
Morgan Stanley286,054$4.04M0.00%+16,372+6.1%Added
Royal Bank of Canada252,014$3.56M0.00%−16,253−6.1%Reduced
UBS Group AG208,911$2.95M0.00%−93,210−30.9%Reduced
Stifel Financial Corp198,004$2.80M0.00%−67,502−25.4%Reduced
ProVise Management Group, LLC168,963$2.39M0.18%+250.0%Added
U.S. Capital Wealth Advisors, LLC166,643$2.36M0.06%+3,500+2.1%Added
Robinson Capital Management, LLC144,312$2.04M1.47%−279,786−66.0%Reduced
Advisors Asset Management, Inc.104,659$1.48M0.03%−6,612−5.9%Reduced
Raymond James Financial Inc72,555$1.03M0.00%+7,718+11.9%Added
Wagner Wealth Management, LLC71,638$1.01M0.24%+49,403+222.2%Added
Samalin Investment Counsel, LLC58,744$830.6K0.29%+58,744New
Wedbush Securities Inc57,379$811.0K0.03%+194+0.3%Added
LPL Financial LLC56,711$801.9K0.00%−7,200−11.3%Reduced
Rockefeller Capital Management L.P.48,247$682.2K0.00%+27,311+130.4%Added
Gateway Wealth Partners, LLC40,035$566.1K0.08%+40,035New
Apollon Wealth Management, LLC36,865$521.3K0.01%00.0%Unchanged
Truist Financial Corp34,348$485.7K0.00%−6,583−16.1%Reduced
XML Financial, LLC34,099$482.2K0.04%+1,200+3.6%Added
Wiley Bros.-Aintree Capital, LLC31,788$449.5K0.00%+139+0.4%Added
Jane Street Group, LLC31,044$439.0K0.00%+31,044New
Advisor Group Holdings, Inc.26,284$369.6K0.00%+13,417+104.3%Added
Stratos Wealth Partners, LTD.24,188$342.0K0.00%−363,628−93.8%Reduced
Avidian Wealth Solutions, LLC24,000$339.4K0.01%00.0%Unchanged
Abel Hall, LLC20,000$282.8K0.11%+20,000New
River Street Advisors LLC19,727$278.9K0.11%00.0%Unchanged
Steward Partners Investment Advisory, LLC18,191$257.2K0.00%+16+0.1%Added
Janney Montgomery Scott LLC17,200$243.0K0.00%−104−0.6%Reduced
Commonwealth Equity Services, LLC17,208$243.0K0.00%+1,816+11.8%Added
National Asset Management, Inc.16,206$229.2K0.01%00.0%Unchanged
Balyasny Asset Management LLC16,099$227.6K0.00%−389−2.4%Reduced
GWM Advisors LLC15,750$222.7K0.00%−1,000−6.0%Reduced
Twelve Points Wealth Management LLC13,697$193.7K0.05%00.0%Unchanged
AE Wealth Management LLC13,300$188.1K0.00%00.0%Unchanged
Change Path, LLC12,576$179.0K0.00%+162+1.3%Added
Melfa Wealth Management, LLC10,927$154.5K0.09%+28+0.3%Added
Cetera Investment Advisers10,707$151.4K0.00%+10,707New
PFG Investments, LLC10,673$150.9K0.01%+368+3.6%Added
Noble Wealth Management PBC6,828$96.5K0.05%+6,828New
Comerica Bank6,000$84.8K0.00%−142−2.3%Reduced
EverSource Wealth Advisors, LLC5,000$70.7K0.00%+5,000New
Advisory Services Network, LLC4,420$62.5K0.00%+4,420New
Newbridge Financial Services Group, Inc.1,500$21.2K0.00%00.0%Unchanged
Harbour Investments, Inc.1,250$17.7K0.00%00.0%Unchanged
US Bancorp1,000$14.1K0.00%+1,000New
West Branch Capital LLC500$7.07K0.00%00.0%Unchanged
Bank of New Hampshire500$7.07K0.00%00.0%Unchanged
Highline Wealth Partners LLC450$6.36K0.00%+450New
Hollencrest Capital Management245$3.46K0.00%00.0%Unchanged
JPMorgan Chase & Co0$60.00%0Unchanged
Allworth Financial LP0$60.00%0Unchanged
Logan Stone Capital, LLC0$00.00%−108,654−100.0%Sold out
Oppenheimer & Co Inc0$00.00%−38,406−100.0%Sold out
Wolverine Asset Management LLC0$00.00%−30,549−100.0%Sold out
Bank of America Corp0$00.00%−21,076−100.0%Sold out
Landscape Capital Management, L.L.C.0$00.00%−20,437−100.0%Sold out
Pensionmark Financial Group, LLC0$00.00%−20,000−100.0%Sold out
Cantor Fitzgerald, L. P.0$00.00%−19,393−100.0%Sold out
HRT Financial LP0$00.00%−13,859−100.0%Sold out
Readystate Asset Management LP0$00.00%−12,888−100.0%Sold out
Atala Financial Inc0$00.00%−11,003−100.0%Sold out