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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.

Q1 2026 vs. Q4 2025

How the institutions holding RiverNorth Managed Duration Municipal Income Fund, Inc. changed between Q4 2025 and Q1 2026.

All holders in Q1 2026All holders in Q4 2025

13F holders of RMM: Q4 2025 compared with Q1 2026
MeasureQ4 2025Of which not filed for Q1 2026Q1 2026Change
Holders57152−4
Shares3.34M6.00K3.51M+174.6K (+5.2%)
Value$45.5M$81.7K$48.1M+$2.68M (+5.9%)

1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (6)

Institutions that held RiverNorth Managed Duration Municipal Income Fund, Inc. at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to RMM in Q1 2026
InstitutionSharesValue% of portfolio
Arkadios Wealth Advisors107,967$1.47M0.02%
Guggenheim Capital LLC106,317$1.45M0.01%
Rivernorth Capital Management, LLC13,382$182.4K0.01%
Fifth Third Bancorp6,000$81.8K0.00%
Advisory Services Network, LLC4,760$64.9K0.00%
Osbon Capital Management LLC1,919$26.2K0.02%

Sold out (10)

Institutions that held RiverNorth Managed Duration Municipal Income Fund, Inc. at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of RMM in Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Balyasny Asset Management LLC45,708$622.1K
Logan Stone Capital, LLC39,029$531.2K
Readystate Asset Management LP27,030$367.9K
Wolverine Asset Management LLC20,447$278.3K
Susquehanna International Group, LLP16,581$225.7K
Jane Street Group, LLC14,769$201.0K
Landscape Capital Management, L.L.C.14,233$193.7K
Cetera Investment Advisers10,725$146.0K
Kestra Advisory Services, LLC4,923$67.0K
Bank of America Corp2,000$27.2K

Not filed for Q1 2026 yet (1)

Institutions that held RiverNorth Managed Duration Municipal Income Fund, Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding RMM in Q4 2025 that haven't filed for Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Comerica Bank6,000$81.7K