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RiverNorth Managed Duration Municipal Income Fund II, Inc.

RMMZ
Exchange
NYSE
SEC CIK
0001870833

No open-market purchases or sales by RiverNorth Managed Duration Municipal Income Fund II, Inc. insiders were filed in the last 90 days; 22 institutions reported holding it in 13F filings for Q2 2026, worth $24.3M in total; no superinvestor holds it.

13F holders, Q3 2025

Institutional positions in RiverNorth Managed Duration Municipal Income Fund II, 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
22
−1 vs. Q2 2025
Shares held
1.18M
−70.9K (−5.7%) vs. Q2 2025
Total value
$18.9M
+$479.9K (+2.6%) vs. Q2 2025
New holders
2
8 more added
Sold out
3
4 more reduced

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

Holders and value by quarter

Institutions reporting RMMZ 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: 22 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 5 institutionsQ2 2022: 4 institutionsQ3 2022: 6 institutionsQ4 2022: 15 institutionsQ1 2023: 11 institutionsQ2 2023: 13 institutionsQ3 2023: 15 institutionsQ4 2023: 20 institutionsQ1 2024: 22 institutionsQ2 2024: 21 institutionsQ3 2024: 22 institutionsQ4 2024: 23 institutionsQ1 2025: 21 institutionsQ2 2025: 23 institutionsQ3 2025: 22 institutionsQ4 2025: 22 institutionsQ1 2026: 23 institutionsQ2 2026: 22 institutions
Value heldQ3 2025: $18.9M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $3.72MQ2 2022: $3.59MQ3 2022: $4.26MQ4 2022: $15.2MQ1 2023: $14.2MQ2 2023: $20.0MQ3 2023: $19.5MQ4 2023: $20.3MQ1 2024: $25.5MQ2 2024: $19.0MQ3 2024: $19.0MQ4 2024: $19.9MQ1 2025: $16.7MQ2 2025: $18.4MQ3 2025: $18.9MQ4 2025: $19.4MQ1 2026: $23.9MQ2 2026: $24.3M
Institutions holding RMMZ and their total value by quarter
QuarterHoldersValue
Q2 202622$24.3M
Q1 202623$23.9M
Q4 202522$19.4M
Q3 202522$18.9M
Q2 202523$18.4M
Q1 202521$16.7M
Q4 202423$19.9M
Q3 202422$19.0M
Q2 202421$19.0M
Q1 202422$25.5M
Q4 202320$20.3M
Q3 202315$19.5M
Q2 202313$20.0M
Q1 202311$14.2M
Q4 202215$15.2M
Q3 20226$4.26M
Q2 20224$3.59M
Q1 20225$3.72M
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q3 2025

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

Institutions holding RMMZ in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Morgan Stanley215,626$3.23M0.00%+39,732+22.6%Added
UBS Group AG201,748$3.03M0.00%+6,802+3.5%Added
Wells Fargo & Company191,803$2.88M0.00%+7,709+4.2%Added
Royal Bank of Canada172,060$2.58M0.00%−179,972−51.1%Reduced
Gateway Wealth Partners, LLC121,823$1.83M0.25%+121,823New
Robinson Capital Management, LLC–$1.27M0.92%––
Oppenheimer & Co Inc59,906$898.6K0.01%+10,407+21.0%Added
Stifel Financial Corp42,821$642.3K0.00%+77+0.2%Added
Raymond James Financial Inc29,330$439.9K0.00%+9,749+49.8%Added
River Street Advisors LLC24,321$364.8K0.14%00.0%Unchanged
Wiley Bros.-Aintree Capital, LLC20,173$302.6K0.00%00.0%Unchanged
Wedbush Securities Inc17,747$266.0K0.01%00.0%Unchanged
TT Capital Management LLC17,100$256.5K0.20%−400−2.3%Reduced
Harbour Investments, Inc.14,500$217.5K0.00%+3,500+31.8%Added
PFG Investments, LLC12,857$192.9K0.01%−1,143−8.2%Reduced
LPL Financial LLC10,842$162.6K0.00%−5,025−31.7%Reduced
Everstar Asset Management, LLC10,641$159.6K0.09%00.0%Unchanged
Advisor Group Holdings, Inc.6,399$96.1K0.00%+3,115+94.9%Added
Steward Partners Investment Advisory, LLC2,500$37.5K0.00%00.0%Unchanged
Bank of America Corp2,100$31.5K0.00%+2,100New
Newbridge Financial Services Group, Inc.1,500$22.5K0.00%00.0%Unchanged
Private Trust Co NA775$11.6K0.00%00.0%Unchanged
Karpus Management, Inc.0$00.00%−74,002−100.0%Sold out
Susquehanna International Group, LLP0$00.00%−12,844−100.0%Sold out
Elequin Capital LP0$00.00%−2,515−100.0%Sold out