CSQ · Calamos Strategic Total Return Fund

$21.09 +0.03 (+0.14%) At close · Sep 4

Market Cap

$3.35B

160.37M

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.

Use institutional holdings through the 13F API or MCP →

Quarter:

Holders: 224

Total Value: $801,858,274

Total Shares: 38,846,758

Showing 1–100 of 224 holdings by value · page 1 of 3

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 224 13F filers · Δ vs Mar 31, 2026

Top Holder

12.5%

−0.1 pts

Top 5

47.4%

+0.1 pts

Top 10

66.4%

+0.5 pts

HHI

585

Broadly held+1

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +4

Institutional value: +20.9%

Shares held: +0.7%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega RAYMOND JAMES FINANCIAL INC	+230,339	2,356,479
Mid 1607 Capital Partners, LLC	+202,825	635,466
Mid RIVERNORTH CAPITAL MANAGEMENT, LLC	+179,071	351,534
Mid Karpus Management, Inc.	+107,581	2,052,204
Mid Arax Advisory Partners	+80,344	80,528

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Small Shaker Financial Services, LLC	−448,880	163,703
Mega MORGAN STANLEY	−67,478	4,298,735
Large CAPTRUST FINANCIAL ADVISORS	−57,301	80,272
Large &PARTNERS	−53,622	501,570
Large M&T Bank Corp	−35,000	10,695

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mid J.W. COLE ADVISORS, INC.	125,610	$2,582,541
Small Waterloo Capital, L.P.	32,122	$660,428
Mid XTX Topco Ltd	31,619	$650,086
Mid MGO ONE SEVEN LLC	25,745	$529,317
Large Creative Planning	23,961	$492,638

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Large READYSTATE ASSET MANAGEMENT LP	236,613	$4,050,814
Small Logan Stone Capital, LLC	130,383	$2,232,156
Large Calamos Advisors LLC	85,160	$1,457,939
Mid U.S. Capital Wealth Advisors, LLC	54,312	$929,821
Small NINE MASTS CAPITAL Ltd	27,663	$473,590

Filter: New 19 Increased 84 Reduced 50 Sold out 15 Unchanged 71

Showing 100 of 224

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

BANK OF AMERICA CORP /DE/

$100,034,350

12.48%

4,865,484

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

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	36,957	$759,835	0.8%	Defined
MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	4,828,527	$99,274,515	99.2%	Defined

MORGAN STANLEY

$88,381,991

11.02%

4,298,735

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

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY CAPITAL SERVICES, LLC	17,625	$362,370	0.4%	Defined
MORGAN STANLEY SMITH BARNEY LLC	4,271,397	$87,819,922	99.4%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	9,713	$199,699	0.2%	Defined

UBS Group AG

$80,954,854

10.10%

3,937,493

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	3,934,135	$80,885,815	99.9%	Defined
UBS Switzerland AG	1,685	$34,643	0.0%	Defined
UBS Securities LLC	1,673	$34,396	0.0%	Defined

WELLS FARGO & COMPANY/MN

$62,607,851

7.81%

3,045,129

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	1,992,701	$40,969,932	65.4%	Defined
WELLS FARGO CLEARING SERVICES, LLC	1,052,428	$21,637,919	34.6%	Defined

RAYMOND JAMES FINANCIAL INC

$48,449,207

6.04%

2,356,479

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

Manager	Shares	Value (USD)	% of position	Discretion
RAYMOND JAMES & ASSOCIATES	1,310,651	$26,946,984	55.6%	Defined
Raymond James Financial Services Advisors, Inc.	975,890	$20,064,298	41.4%	Defined
RAYMOND JAMES TRUST N.A.	69,938	$1,437,925	3.0%	Defined

ROYAL BANK OF CANADA

$44,470,683

5.55%

2,162,971

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	2,161,954	$44,449,774	100.0%	Defined
RBC Trust Co (Delaware) Ltd	1,017	$20,909	0.0%	Defined

Karpus Management, Inc.

$42,193,314

5.26%

2,052,204

LPL Financial LLC

$25,669,509

3.20%

1,248,517

Bensler, LLC

$23,702,904

2.96%

1,152,865

McGowan Group Asset Management, Inc.

$16,186,045

2.02%

787,259

Cetera Investment Advisers

$15,872,607

1.98%

772,014

Rockefeller Capital Management L.P.

$15,387,350

1.92%

748,412

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

Manager	Shares	Value (USD)	% of position	Discretion
ROCKEFELLER FINANCIAL LLC	748,412	$15,387,350	100.0%	Defined

Advisors Asset Management, Inc.

$14,382,357

1.79%

699,531

1607 Capital Partners, LLC

$13,065,180

1.63%

635,466

Stratos Wealth Partners, LTD.

$10,847,805

1.35%

527,617

&PARTNERS

$10,312,279

1.29%

501,570

STIFEL FINANCIAL CORP

$8,485,235

1.06%

412,706

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\	412,306	$8,477,011	99.9%	Defined
1919 Investment Counsel, LLC	400	$8,224	0.1%	Defined

OSAIC HOLDINGS, INC.

$7,591,779

0.95%

369,250

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

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	352,462	$7,246,618	95.5%	Defined
Osaic Advisory Services, LLC	16,788	$345,161	4.5%	Defined

RIVERNORTH CAPITAL MANAGEMENT, LLC

$7,227,539

0.90%

351,534

GUGGENHEIM CAPITAL LLC

$6,949,341

0.87%

338,003

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	338,003	$6,949,341	100.0%	Defined

TRUIST FINANCIAL CORP

$6,489,291

0.81%

315,627

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

Manager	Shares	Value (USD)	% of position	Discretion
Truist Advisory Services, Inc.	315,627	$6,489,291	100.0%	Defined

AMERIPRISE FINANCIAL INC

$6,198,387

0.77%

301,478

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

Manager	Shares	Value (USD)	% of position	Discretion
Ameriprise Financial Services, LLC	301,478	$6,198,387	100.0%	Defined

Apollon Wealth Management, LLC

$5,651,676

0.70%

274,887

Janney Montgomery Scott LLC

$4,876,996

0.61%

237,208

Smith Asset Management Co., LLC

$4,659,019

0.58%

226,606

WOLVERINE ASSET MANAGEMENT LLC

$4,633,257

0.58%

225,353

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

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	225,353	$4,633,257	100.0%	Defined

ENVESTNET ASSET MANAGEMENT INC

$4,019,582

0.50%

195,505

World Investment Advisors

$3,500,566

0.44%

170,261

Sanctuary Advisors, LLC

$3,420,012

0.43%

166,343

Cambridge Investment Research Advisors, Inc.

$3,375,191

0.42%

164,163

Shaker Financial Services, LLC

$3,365,733

0.42%

163,703

PMG Family Office LLC

$3,337,710

0.42%

162,340

COMMONWEALTH EQUITY SERVICES, LLC

$3,288,078

0.41%

159,926

Prairie Wealth Advisors, Inc.

$3,169,026

0.40%

DAVENPORT & Co LLC

$3,032,538

0.38%

147,497

Savant Capital, LLC

$2,812,422

0.35%

136,791

Clearstead Advisors, LLC

$2,746,219

0.34%

133,571

J.W. COLE ADVISORS, INC.

$2,582,541

0.32%

125,610

HighTower Advisors, LLC

$2,499,623

0.31%

121,577

Steward Partners Investment Advisory, LLC

$2,489,014

0.31%

121,061

FOUNDERS FINANCIAL SECURITIES LLC

$2,478,508

0.31%

120,550

Mariner, LLC

$2,406,527

0.30%

117,049

Pointe Capital Management LLC

$2,376,777

0.30%

115,602

Aviance Capital Partners, LLC

$2,025,262

0.25%

98,505

Kestra Advisory Services, LLC

$1,932,537

0.24%

93,995

Meridian Wealth Advisors, LLC

$1,762,444

0.22%

85,722

Calamos Wealth Management LLC

$1,750,889

0.22%

85,160

Private Advisor Group, LLC

$1,743,446

0.22%

84,798

LAKE STREET PRIVATE WEALTH, LLC

$1,734,194

0.22%

84,348

Arax Advisory Partners

$1,655,655

0.21%

80,528

CAPTRUST FINANCIAL ADVISORS

$1,650,392

0.21%

80,272

OPPENHEIMER & CO INC

$1,485,583

0.19%

72,256

Snowden Capital Advisors LLC

$1,471,849

0.18%

71,588

Beacon Pointe Advisors, LLC

$1,469,032

0.18%

71,451

FIFTH THIRD BANCORP

$1,346,042

0.17%

65,469

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	65,469	$1,346,042	100.0%	Defined

PNC FINANCIAL SERVICES GROUP, INC.

$1,345,137

0.17%

65,425

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

Manager	Shares	Value (USD)	% of position	Discretion
PNC Bank, National Association	64,870	$1,333,727	99.2%	Defined
PNC Wealth Management LLC	555	$11,410	0.8%	Defined

Mesirow Financial Investment Management, Inc.

$1,257,367

0.16%

61,156

CENTRAL TRUST Co

$1,213,204

0.15%

59,008

HARBOUR INVESTMENTS, INC.

$1,184,584

0.15%

57,616

NewEdge Advisors, LLC

$1,184,256

0.15%

57,600

Invesco Ltd.

$1,116,634

0.14%

54,311

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

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Investment Advisers LLC	54,311	$1,116,634	100.0%	Defined

Dakota Wealth Management

$1,111,309

0.14%

54,052

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

Manager	Shares	Value (USD)	% of position	Discretion
Karpus Management Inc.	54,052	$1,111,309	100.0%	Defined

PFG Investments, LLC

$976,435

0.12%

47,492

David J Yvars Group

$929,476

0.12%

45,208

Concurrent Investment Advisors, LLC

$911,733

0.11%

44,345

Waverly Advisors, LLC

$876,945

0.11%

42,653

Western Wealth Management, LLC

$797,933

0.10%

38,810

Palogic Value Management, L.P.

$797,728

0.10%

38,800

Brookstone Capital Management

$794,808

0.10%

38,658

TrueMark Investments, LLC

$733,272

0.09%

35,665

PW Nova Financial Services LLC

$729,571

0.09%

35,485

Aptus Capital Advisors, LLC

$711,602

0.09%

34,611

Quad-Cities Investment Group, LLC

$685,408

0.09%

33,337

Integrated Wealth Concepts LLC

$675,190

0.08%

32,840

QTR Family Wealth, LLC

$666,308

0.08%

32,408

NWF Advisory Services Inc.

$664,787

0.08%

32,334

Waterloo Capital, L.P.

$660,428

0.08%

32,122

GOLDMAN SACHS GROUP INC

$658,577

0.08%

32,032

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

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	32,032	$658,577	100.0%	Defined

XTX Topco Ltd

$650,086

0.08%

31,619

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

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	31,619	$650,086	100.0%	Defined

WEALTH ENHANCEMENT ADVISORY SERVICES, LLC

$637,503

0.08%

31,007

Pathstone Holdings, LLC

$634,995

0.08%

30,885

Advisory Advocates, LLC

$628,601

0.08%

30,574

D.A. DAVIDSON & CO.

$602,428

0.08%

29,301

Summit Financial, LLC

$600,968

0.07%

29,230

Wealthcare Advisory Partners LLC

$599,652

0.07%

29,166

Gryphon Financial Partners LLC

$595,869

0.07%

28,982

Kovack Advisors, Inc.

$591,470

0.07%

28,768

Mezzasalma Advisors, LLC

$551,008

0.07%

26,800

NATIONS FINANCIAL GROUP INC, /IA/ /ADV

$548,170

0.07%

26,662

LOWE BROCKENBROUGH & CO INC

$547,656

0.07%

26,637

DOLIVER ADVISORS, LP

$544,511

0.07%

26,484

MGO ONE SEVEN LLC

$529,317

0.07%

25,745

WCG Wealth Advisors LLC

$528,145

0.07%

25,688

Baird Financial Group, Inc.

$511,490

0.06%

24,878

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

Manager	Shares	Value (USD)	% of position	Discretion
Robert W. Baird & Co. Inc	16,789	$345,181	67.5%	Defined
BAIRD TRUST Co	8,089	$166,309	32.5%	Defined

JANE STREET GROUP, LLC

$509,373

0.06%

24,775

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

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	9,959	$204,757	40.2%	Defined
Jane Street Global Trading, LLC	14,816	$304,616	59.8%	Defined

Creative Planning

$492,638

0.06%

23,961

Fairman Group, LLC

$484,578

0.06%

23,569

GUARDIAN WEALTH ADVISORS, LLC / NC

$469,220

0.06%

22,822

Uniting Wealth Partners, LLC

$462,990

0.06%

22,519

Caprock Group, LLC

$447,611

0.06%

21,771

Key facts CIK 1275214 CUSIP 128125101 13F (30d) 140 filings 123 filers Investor relations