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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, Q2 2025

Institutional positions in RiverNorth Managed Duration Municipal Income Fund II, Inc. as of Jun 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
23
+3 vs. Q1 2025
Shares held
1.25M
+169.8K (+15.8%) vs. Q1 2025
Total value
$18.4M
+$1.74M (+10.4%) vs. Q1 2025
New holders
5
6 more added
Sold out
2
7 more reduced

1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2025: 23 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 heldQ2 2025: $18.4M
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, Q2 2025

Shares, value and share of portfolio for each institution holding RiverNorth Managed Duration Municipal Income Fund II, Inc.; share changes are against Q1 2025.

Institutions holding RMMZ in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Royal Bank of Canada352,032$4.95M0.00%+185,376+111.2%Added
UBS Group AG194,946$2.74M0.00%+24,979+14.7%Added
Wells Fargo & Company184,094$2.59M0.00%−30,767−14.3%Reduced
Morgan Stanley175,894$2.47M0.00%−7,834−4.3%Reduced
Karpus Management, Inc.74,002$1.04M0.03%−6,021−7.5%Reduced
Robinson Capital Management, LLC–$903.1K0.38%–New
Oppenheimer & Co Inc49,499$696.0K0.01%+12,591+34.1%Added
Stifel Financial Corp42,744$601.0K0.00%−3,720−8.0%Reduced
River Street Advisors LLC24,321$342.0K0.15%+24,321New
Wiley Bros.-Aintree Capital, LLC20,173$283.6K0.00%00.0%Unchanged
Raymond James Financial Inc19,581$275.3K0.00%−5,645−22.4%Reduced
Wedbush Securities Inc17,747$250.0K0.01%−32,093−64.4%Reduced
TT Capital Management LLC17,500$246.1K0.20%00.0%Unchanged
LPL Financial LLC15,867$223.1K0.00%−2,363−13.0%Reduced
PFG Investments, LLC14,000$196.8K0.01%+1,000+7.7%Added
Susquehanna International Group, LLP12,844$180.6K0.00%+12,844New
Harbour Investments, Inc.11,000$154.7K0.00%+9,000+450.0%Added
Everstar Asset Management, LLC10,641$149.6K0.09%00.0%Unchanged
Advisor Group Holdings, Inc.3,284$46.2K0.00%+414+14.4%Added
Elequin Capital LP2,515$35.4K0.00%+2,515New
Steward Partners Investment Advisory, LLC2,500$35.1K0.00%00.0%Unchanged
Newbridge Financial Services Group, Inc.1,500$21.1K0.00%+1,500New
Private Trust Co NA775$10.9K0.00%00.0%Unchanged
Pathstone Holdings, LLC0$00.00%−182−100.0%Sold out
Arlington Capital Management, Inc.0$00.00%−16,134−100.0%Sold out
Noble Wealth Management PBC––––Not filed