RMM · RiverNorth Managed Duration Municipal Income Fund, Inc.

$14.20 -0.04 (-0.28%) At close · Aug 27

Market Cap

$281.09M

19.74M

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.

Quarter:

Holders: 54

Total Value: $55,918,606

Total Shares: 3,782,375

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 54 13F filers · Δ vs Mar 31, 2026

Top Holder

10.8%

−1.5 pts

Top 5

43.7%

+0.1 pts

Top 10

68.1%

+2.6 pts

HHI

574

Broadly held−2

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +2

Institutional value: +17.4%

Shares held: +7.7%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Large GUGGENHEIM CAPITAL LLC	+194,524	300,841
Mid Advisors Asset Management, Inc.	+62,282	288,741
Large Janney Montgomery Scott LLC	+26,558	52,658
Small Wagner Wealth Management, LLC	+18,390	126,357
Large OSAIC HOLDINGS, INC.	+16,782	67,300

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Small Gateway Wealth Partners, LLC	−57,710	57,670
Small ROBINSON CAPITAL MANAGEMENT, LLC	−22,037	409,360
Small XML Financial, LLC	−16,500	24,700
Small Samalin Investment Counsel, LLC	−16,123	38,437
Mega RAYMOND JAMES FINANCIAL INC	−12,631	93,287

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mid Arax Advisory Partners	167,228	$2,472,298
Large Kestra Advisory Services, LLC	165,782	$2,450,921
Mid HUB Investment Partners, LLC	14,031	$207,434
Mega CITADEL ADVISORS LLC	12,199	$180,350
Large Cetera Investment Advisers	11,396	$168,478

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Mid U.S. Capital Wealth Advisors, LLC	179,728	$2,449,692
Mid Arkadios Wealth Advisors	107,967	$1,471,590
Mid RIVERNORTH CAPITAL MANAGEMENT, LLC	13,382	$182,396
Mid PFG Investments, LLC	10,430	$142,160
Mid Advisory Services Network, LLC	4,760	$64,878

Filter: New 8 Increased 17 Reduced 13 Sold out 6 Unchanged 16

Showing 54 of 54

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

ROBINSON CAPITAL MANAGEMENT, LLC

$6,051,978

10.82%

409,360

WELLS FARGO & COMPANY/MN

$5,986,425

10.71%

404,926

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	125,426	$1,854,297	31.0%	Defined
WELLS FARGO CLEARING SERVICES, LLC	279,500	$4,132,128	69.0%	Defined

GUGGENHEIM CAPITAL LLC

$4,447,633

7.95%

300,841

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GUGGENHEIM FUNDS DISTRIBUTORS, LLC	300,841	$4,447,633	100.0%	Defined

Advisors Asset Management, Inc.

$4,268,746

7.63%

288,741

ROYAL BANK OF CANADA

$3,697,980

6.61%

250,134

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Capital Markets, LLC	241,360	$3,568,266	96.5%	Defined
RBC Trust Co (Delaware) Ltd	8,774	$129,714	3.5%	Defined

MORGAN STANLEY

$3,566,624

6.38%

241,249

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY SMITH BARNEY LLC	241,249	$3,566,624	100.0%	Defined

UBS Group AG

$2,604,629

4.66%

176,179

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	176,178	$2,604,615	100.0%	Defined
UBS Securities LLC	1	$14	0.0%	Defined

ProVise Management Group, LLC

$2,521,041

4.51%

170,525

Arax Advisory Partners

$2,472,298

4.42%

167,228

Kestra Advisory Services, LLC

$2,450,921

4.38%

165,782

Rockefeller Capital Management L.P.

$1,874,064

3.35%

126,763

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
ROCKEFELLER FINANCIAL LLC	126,763	$1,874,064	100.0%	Defined

Wagner Wealth Management, LLC

$1,868,061

3.34%

126,357

RAYMOND JAMES FINANCIAL INC

$1,379,154

2.47%

93,287

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RAYMOND JAMES & ASSOCIATES	65,313	$965,587	70.0%	Defined
Raymond James Financial Services Advisors, Inc.	27,974	$413,567	30.0%	Defined

LPL Financial LLC

$1,352,381

2.42%

91,476

OSAIC HOLDINGS, INC.

$994,963

1.78%

67,300

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	67,300	$994,963	100.0%	Defined

WEDBUSH SECURITIES INC

$871,842

1.56%

58,972

Gateway Wealth Partners, LLC

$852,593

1.52%

57,670

OPPENHEIMER & CO INC

$824,651

1.47%

55,780

Janney Montgomery Scott LLC

$778,495

1.39%

52,658

STIFEL FINANCIAL CORP

$775,775

1.39%

52,474

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STIFEL NICOLAUS & CO INC \MO\	52,474	$775,775	100.0%	Defined

Apollon Wealth Management, LLC

$656,853

1.17%

44,430

Estate Planners Group, LLC

$621,918

1.11%

42,067

Samalin Investment Counsel, LLC

$568,252

1.02%

38,437

&PARTNERS

$444,096

0.79%

30,039

HighTower Advisors, LLC

$386,025

0.69%

26,111

Stratos Wealth Partners, LTD.

$375,883

0.67%

25,425

XML Financial, LLC

$365,164

0.65%

24,700

Abel Hall, LLC

$295,680

0.53%

20,000

River Street Advisors LLC

$291,643

0.52%

19,727

COMMONWEALTH EQUITY SERVICES, LLC

$276,179

0.49%

18,681

NewEdge Advisors, LLC

$244,675

0.44%

16,550

HUB Investment Partners, LLC

$207,434

0.37%

14,031

CreativeOne Wealth, LLC

$192,857

0.34%

13,045

AE Wealth Management LLC

$187,756

0.34%

12,700

CITADEL ADVISORS LLC

$180,350

0.32%

12,199

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	12,199	$180,350	100.0%	Defined

Closed-End Fund Advisors, Inc.

$175,988

0.31%

11,904

Cetera Investment Advisers

$168,478

0.30%

11,396

MELFA WEALTH MANAGEMENT, INC.

$162,727

0.29%

11,007

FIFTH THIRD BANCORP

$88,704

0.16%

6,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fifth Third Bank, National Association	6,000	$88,704	100.0%	Defined

EverSource Wealth Advisors, LLC

$88,704

0.16%

6,000

Steward Partners Investment Advisory, LLC

$88,674

0.16%

5,998

Noble Wealth Management PBC

$59,120

0.11%

4,000

Advocate Investing Services LLC

$36,960

0.07%

2,500

US BANCORP \DE\

$29,568

0.05%

2,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
US BANK NATIONAL ASSOCIATION	2,000	$29,568	100.0%	Defined

Integrated Wealth Concepts LLC

$21,436

0.04%

1,450

HARBOUR INVESTMENTS, INC.

$18,480

0.03%

1,250

Clear Street Group Inc.

$12,285

0.02%

831

West Branch Capital LLC

$7,392

0.01%

500

Triumph Capital Management

$7,392

0.01%

500

Bank of New Hampshire

$7,392

0.01%

500

HIGHLINE WEALTH PARTNERS LLC

$6,652

0.01%

450

HOLLENCREST CAPITAL MANAGEMENT

$3,622

0.01%

245

Allworth Financial LP

0.00%

JPMORGAN CHASE & CO

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
55I, LLC	0	$0	0.0%	Other

Key facts CIK 1771226 CUSIP 76882H105 13F (30d) 38 filings 38 filers Visit website