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RMMZ

RiverNorth Managed Duration Municipal Income Fund II, Inc.
$15.04 +0.08 (+0.53%) At close · Jul 2
Market Cap
$127.16M
Shares
8,455,000

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: 23
Total Value: $23,923,966
Total Shares: 1,628,505

Institutional Ownership Trend

18 quarters

Holder Concentration

Across 23 13F filers
Top Holder
17.9%
Jun 2023 → Mar 2026 · range 16.7% – 37.0%
of institutional value
Top 5
68.0%
Jun 2023 → Mar 2026 · range 68.0% – 86.8%
of institutional value
Top 10
87.8%
Jun 2023 → Mar 2026 · range 87.8% – 98.7%
of institutional value
HHI
1,062
Jun 2023 → Mar 2026 · range 1,062 – 2,214
Broadly held
Showing 23 of 23
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1870833 CUSIP 76882M104 13F (30d) 1 filings 1 filers Visit website