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Calamos Strategic Total Return Fund

CSQ
Exchange
Nasdaq
SEC CIK
0001275214

No open-market purchases or sales by Calamos Strategic Total Return Fund insiders were filed in the last 90 days; 223 institutions reported holding it in 13F filings for Q2 2026, worth $805.2M in total; no superinvestor holds it.

13F holders, Q2 2025

Institutional positions in Calamos Strategic Total Return Fund 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
202
+4 vs. Q1 2025
Shares held
37.9M
+3.48M (+10.1%) vs. Q1 2025
Total value
$692.1M
+$134.3M (+24.1%) vs. Q1 2025
New holders
17
78 more added
Sold out
13
54 more reduced

3 institutions 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 CSQ 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: 202 institutions
Q1 2021: 149 institutionsQ2 2021: 148 institutionsQ3 2021: 144 institutionsQ4 2021: 169 institutionsQ1 2022: 159 institutionsQ2 2022: 153 institutionsQ3 2022: 157 institutionsQ4 2022: 164 institutionsQ1 2023: 169 institutionsQ2 2023: 160 institutionsQ3 2023: 168 institutionsQ4 2023: 173 institutionsQ1 2024: 177 institutionsQ2 2024: 189 institutionsQ3 2024: 190 institutionsQ4 2024: 203 institutionsQ1 2025: 201 institutionsQ2 2025: 202 institutionsQ3 2025: 209 institutionsQ4 2025: 216 institutionsQ1 2026: 219 institutionsQ2 2026: 223 institutions
Value heldQ2 2025: $692.1M
Q1 2021: $426.6MQ2 2021: $460.4MQ3 2021: $459.6MQ4 2021: $523.4MQ1 2022: $471.3MQ2 2022: $366.2MQ3 2022: $357.6MQ4 2022: $389.2MQ1 2023: $410.4MQ2 2023: $437.1MQ3 2023: $422.6MQ4 2023: $515.6MQ1 2024: $645.0MQ2 2024: $558.6MQ3 2024: $588.9MQ4 2024: $603.7MQ1 2025: $558.3MQ2 2025: $692.1MQ3 2025: $724.3MQ4 2025: $743.9MQ1 2026: $663.4MQ2 2026: $805.2M
Institutions holding CSQ and their total value by quarter
QuarterHoldersValue
Q2 2026223$805.2M
Q1 2026219$663.4M
Q4 2025216$743.9M
Q3 2025209$724.3M
Q2 2025202$692.1M
Q1 2025201$558.3M
Q4 2024203$603.7M
Q3 2024190$588.9M
Q2 2024189$558.6M
Q1 2024177$645.0M
Q4 2023173$515.6M
Q3 2023168$422.6M
Q2 2023160$437.1M
Q1 2023169$410.4M
Q4 2022164$389.2M
Q3 2022157$357.6M
Q2 2022153$366.2M
Q1 2022159$471.3M
Q4 2021169$523.4M
Q3 2021144$459.6M
Q2 2021148$460.4M
Q1 2021149$426.6M

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Calamos Strategic Total Return Fund; share changes are against Q1 2025.

Institutions holding CSQ in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Bank of America Corp4,735,753$86.4M0.01%−49,339−1.0%Reduced
Morgan Stanley4,205,936$76.7M0.00%−7,114−0.2%Reduced
Royal Bank of Canada4,000,422$73.0M0.01%+2,046,390+104.7%Added
UBS Group AG3,954,039$72.1M0.02%−173,015−4.2%Reduced
Wells Fargo & Company3,289,521$60.0M0.01%+65,799+2.0%Added
Raymond James Financial Inc1,995,245$36.4M0.01%+67,576+3.5%Added
Cornerstone Advisors, LLC1,438,135$26.2M0.90%+157,864+12.3%Added
Rockefeller Capital Management L.P.1,208,928$22.1M0.03%+786,802+186.4%Added
LPL Financial LLC1,078,841$19.7M0.01%+19,056+1.8%Added
Bensler, LLC994,476$18.1M2.03%+1,720+0.2%Added
McGowan Group Asset Management, Inc.782,813$14.3M1.80%+29,291+3.9%Added
Cetera Investment Advisers685,328$12.5M0.02%−979−0.1%Reduced
Advisors Asset Management, Inc.530,147$9.67M0.17%+22,793+4.5%Added
Stratos Wealth Partners, LTD.512,616$9.35M0.13%+96,384+23.2%Added
Guggenheim Capital LLC434,485$7.93M0.06%+8,652+2.0%Added
Apollon Wealth Management, LLC409,908$7.48M0.15%−3,175−0.8%Reduced
Shaker Financial Services, LLC394,767$7.20M2.61%+33,274+9.2%Added
Stifel Financial Corp382,804$6.98M0.01%+102,745+36.7%Added
Polar Asset Management Partners Inc.372,587$6.80M0.17%+250,257+204.6%Added
Advisor Group Holdings, Inc.280,507$5.12M0.01%−16,897−5.7%Reduced
Ameriprise Financial Inc267,626$4.87M0.00%+5,568+2.1%Added
Truist Financial Corp265,927$4.85M0.01%+8,183+3.2%Added
Smith Asset Management Co., LLC229,072$4.18M3.61%−893−0.4%Reduced
Davenport & Co LLC206,728$3.77M0.02%−8,581−4.0%Reduced
Commonwealth Equity Services, LLC192,437$3.51M0.00%+8,769+4.8%Added
Janney Montgomery Scott LLC189,213$3.45M0.01%−418−0.2%Reduced
Sanctuary Advisors, LLC175,765$3.21M0.02%+4,297+2.5%Added
Cambridge Investment Research Advisors, Inc.153,564$2.80M0.01%−23,249−13.1%Reduced
Steward Partners Investment Advisory, LLC145,072$2.65M0.02%−4,121−2.8%Reduced
Clearstead Advisors, LLC139,285$2.54M0.04%−2,333−1.6%Reduced
Savant Capital, LLC134,743$2.46M0.02%−150−0.1%Reduced
Pointe Capital Management LLC131,220$2.39M1.24%−20.0%Reduced
J.W. Cole Advisors, Inc.125,008$2.28M0.05%−844−0.7%Reduced
Prairie Wealth Advisors, Inc.119,736$2.18M0.93%+10,219+9.3%Added
HighTower Advisors, LLC118,806$2.17M0.00%−22,018−15.6%Reduced
Founders Financial Securities LLC111,305$2.03M0.15%+14,575+15.1%Added
Readystate Asset Management LP109,462$2.00M0.08%+72,917+199.5%Added
Invesco Ltd.107,541$1.96M0.00%+8,232+8.3%Added
Mariner, LLC106,036$1.93M0.00%+1,909+1.8%Added
Meridian Wealth Advisors, LLC97,722$1.78M0.28%00.0%Unchanged
Aviance Capital Partners, LLC97,262$1.77M0.23%−2,210−2.2%Reduced
Calamos Wealth Management LLC85,160$1.55M0.07%00.0%Unchanged
Central Trust Co84,515$1.54M0.04%−5,225−5.8%Reduced
Envestnet Asset Management Inc84,075$1.53M0.00%+20,267+31.8%Added
Captrust Financial Advisors81,223$1.48M0.00%+3,016+3.9%Added
Private Advisor Group, LLC72,393$1.32M0.01%+4,084+6.0%Added
Lake Street Financial LLC65,448$1.19M0.17%+1,350+2.1%Added
Oppenheimer & Co Inc64,763$1.18M0.02%+455+0.7%Added
GWM Advisors LLC62,018$1.13M0.01%−1,632−2.6%Reduced
U.S. Capital Wealth Advisors, LLC59,964$1.09M0.03%−190−0.3%Reduced
Kestra Advisory Services, LLC57,224$1.04M0.01%+55+0.1%Added
Karpus Management, Inc.55,333$1.01M0.03%+1,990+3.7%Added
Harbour Investments, Inc.54,119$987.1K0.03%−3,174−5.5%Reduced
Comerica Bank53,929$983.7K0.00%+1,325+2.5%Added
Mesirow Financial Investment Management, Inc.52,296$953.9K0.02%+41+0.1%Added
M&T Bank Corp45,000$820.8K0.00%00.0%Unchanged
Colony Group, LLC44,660$814.6K0.00%+44,660New
Warren Averett Asset Management, LLC43,643$796.1K0.01%−160−0.4%Reduced
Good Life Advisors, LLC41,287$753.1K0.05%+29,752+257.9%Added
NWF Advisory Services Inc.40,134$732.0K0.09%00.0%Unchanged
Palogic Value Management, L.P.38,800$707.7K0.30%00.0%Unchanged
PFG Investments, LLC37,638$686.5K0.04%+5,609+17.5%Added
Snowden Capital Advisors LLC35,632$649.9K0.02%−1,047−2.9%Reduced
Arete Wealth Advisors, LLC34,356$627.0K0.04%+99+0.3%Added
Fairman Group, LLC33,051$602.9K0.50%00.0%Unchanged
Quad-Cities Investment Group, LLC32,919$600.4K0.27%−126−0.4%Reduced
Susquehanna International Group, LLP32,479$592.4K0.00%+8,610+36.1%Added
The PNC Financial Services Group, Inc.32,155$586.5K0.00%00.0%Unchanged
Kestra Private Wealth Services, LLC31,797$580.0K0.01%+3,812+13.6%Added
Goldman Sachs Group Inc31,646$577.2K0.00%00.0%Unchanged
Pathstone Holdings, LLC30,885$563.3K0.00%00.0%Unchanged
Kovack Advisors, Inc.30,825$562.2K0.06%+30,825New
GPS Wealth Strategies Group, LLC30,165$550.2K0.06%00.0%Unchanged
Brookstone Capital Management29,765$542.9K0.01%+5,764+24.0%Added
WCG Wealth Advisors LLC27,888$508.7K0.03%+10,882+64.0%Added
Integrated Wealth Concepts LLC27,621$503.8K0.01%+353+1.3%Added
David J Yvars Group27,121$492.9K0.29%+1,720+6.8%Added
Wealthcare Advisory Partners LLC26,952$491.6K0.01%+2,759+11.4%Added
Mezzasalma Advisors, LLC26,699$487.0K0.15%+301+1.1%Added
Uniting Wealth Partners, LLC25,424$463.7K0.18%−2,486−8.9%Reduced
D.A. Davidson & Co.24,720$450.9K0.00%+500+2.1%Added
XML Financial, LLC24,078$439.2K0.04%−850−3.4%Reduced
WealthTrust Axiom LLC23,813$434.4K0.13%−700−2.9%Reduced
Strategies Wealth Advisors, LLC23,462$427.9K0.05%+100+0.4%Added
Aptus Capital Advisors, LLC23,381$426.5K0.00%+57+0.2%Added
Guardian Wealth Advisors, LLC23,381$426.5K0.03%+57+0.2%Added
Wealth Enhancement Advisory Services, LLC22,707$418.7K0.00%+1,875+9.0%Added
Summit Financial, LLC22,808$416.0K0.01%+22,808New
Citadel Advisors LLC22,658$413.3K0.00%+22,658New
Nations Financial Group Inc,22,615$412.5K0.03%−1,740−7.1%Reduced
Litman Gregory Asset Management LLC22,500$410.4K0.03%00.0%Unchanged
Wedbush Securities Inc22,199$405.0K0.01%+377+1.7%Added
Baird Financial Group, Inc.22,138$403.8K0.00%−4,820−17.9%Reduced
ELCO Management Co., LLC22,124$403.5K0.21%−100−0.4%Reduced
Elequin Capital LP20,704$377.6K0.05%+20,704New
Game Plan Financial Advisors, LLC20,000$364.8K0.16%00.0%Unchanged
Mosaic Family Wealth Partners, LLC19,850$362.1K0.05%+203+1.0%Added
Dana Investment Advisors, Inc.19,404$353.9K0.01%+1,740+9.9%Added
Smith, Moore & Co.19,150$349.3K0.03%−700−3.5%Reduced
EP Wealth Advisors, LLC19,148$349.3K0.00%−12,369−39.2%Reduced