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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 2026

Institutional positions in Calamos Strategic Total Return Fund as of Jun 30, 2026. 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
223
+7 vs. Q1 2026
Shares held
39.0M
+528.3K (+1.4%) vs. Q1 2026
Total value
$805.2M
+$143.0M (+21.6%) vs. Q1 2026
New holders
19
86 more added
Sold out
12
49 more reduced

3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 2026: 223 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 2026: $805.2M
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 2026

Shares, value and share of portfolio for each institution holding Calamos Strategic Total Return Fund; share changes are against Q1 2026.

Institutions holding CSQ in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Bank of America Corp4,865,484$100.0M0.01%+7,949+0.2%Added
Morgan Stanley4,298,735$88.4M0.00%−67,478−1.5%Reduced
UBS Group AG3,937,493$81.0M0.01%+28,995+0.7%Added
Wells Fargo & Company3,045,129$62.6M0.01%−17,612−0.6%Reduced
Raymond James Financial Inc2,356,479$48.4M0.01%+230,339+10.8%Added
Royal Bank of Canada2,162,971$44.5M0.01%+44,755+2.1%Added
Karpus Management, Inc.2,052,204$42.2M1.21%+107,581+5.5%Added
LPL Financial LLC1,248,517$25.7M0.01%+24,445+2.0%Added
Bensler, LLC1,152,865$23.7M2.10%+38,166+3.4%Added
McGowan Group Asset Management, Inc.787,259$16.2M1.97%−7,438−0.9%Reduced
Cetera Investment Advisers772,014$15.9M0.01%−10,612−1.4%Reduced
Rockefeller Capital Management L.P.748,412$15.4M0.02%+38,235+5.4%Added
Advisors Asset Management, Inc.699,531$14.4M0.22%+50,453+7.8%Added
1607 Capital Partners, LLC635,466$13.1M1.14%+202,825+46.9%Added
Stratos Wealth Partners, LTD.527,617$10.8M0.11%+1,829+0.3%Added
Wiley Bros.-Aintree Capital, LLC501,570$10.2M0.04%−53,622−9.7%Reduced
Stifel Financial Corp412,706$8.49M0.01%+24,171+6.2%Added
Advisor Group Holdings, Inc.369,250$7.59M0.01%+38,894+11.8%Added
Rivernorth Capital Management, LLC351,534$7.23M0.34%+179,071+103.8%Added
Guggenheim Capital LLC338,003$6.95M0.04%+13,458+4.1%Added
Cambridge Investment Research Advisors, Inc.328,326$6.75M0.01%+162,224+97.7%Added
Truist Financial Corp315,627$6.49M0.01%+7,262+2.4%Added
Ameriprise Financial Inc301,478$6.20M0.00%+14,717+5.1%Added
Apollon Wealth Management, LLC274,887$5.65M0.07%−6,183−2.2%Reduced
Janney Montgomery Scott LLC237,208$4.88M0.01%+16,166+7.3%Added
Smith Asset Management Co., LLC226,606$4.66M3.67%−3,250−1.4%Reduced
Wolverine Asset Management LLC225,353$4.63M0.06%+14,558+6.9%Added
Envestnet Asset Management Inc195,505$4.02M0.00%+48,469+33.0%Added
Sanctuary Advisors, LLC166,343$3.42M0.02%−254−0.2%Reduced
Shaker Financial Services, LLC163,703$3.37M1.05%−448,880−73.3%Reduced
PMG Family Office LLC162,340$3.34M3.08%+1,061+0.7%Added
Commonwealth Equity Services, LLC159,926$3.29M0.00%+582+0.4%Added
Prairie Wealth Advisors, Inc.0$3.17M0.76%0Unchanged
Davenport & Co LLC147,497$3.03M0.02%−19,727−11.8%Reduced
Pensionmark Financial Group, LLC170,261$2.91M0.05%−1,700−1.0%Reduced
Savant Capital, LLC136,791$2.81M0.01%+1,448+1.1%Added
Clearstead Advisors, LLC133,571$2.75M0.03%−2,682−2.0%Reduced
J.W. Cole Advisors, Inc.125,610$2.58M0.04%+125,610New
HighTower Advisors, LLC121,577$2.50M0.00%+1,486+1.2%Added
Steward Partners Investment Advisory, LLC121,061$2.49M0.01%−2,393−1.9%Reduced
Founders Financial Securities LLC120,550$2.48M0.13%+1,820+1.5%Added
Mariner, LLC117,049$2.41M0.00%+9,999+9.3%Added
Pointe Capital Management LLC115,602$2.38M1.06%−8,499−6.8%Reduced
Aviance Capital Partners, LLC98,505$2.03M0.21%−340−0.3%Reduced
Kestra Advisory Services, LLC93,995$1.93M0.01%+6,339+7.2%Added
Meridian Wealth Advisors, LLC85,722$1.76M0.20%00.0%Unchanged
Calamos Wealth Management LLC85,160$1.75M0.05%00.0%Unchanged
Private Advisor Group, LLC84,798$1.74M0.01%+2,855+3.5%Added
Lake Street Financial LLC84,348$1.73M0.20%+10,100+13.6%Added
SRS Capital Advisors, Inc.80,528$1.66M0.01%+80,344+43,665.2%Added
Captrust Financial Advisors80,272$1.65M0.00%−57,301−41.7%Reduced
Palogic Value Management, L.P.77,600$1.60M0.28%+38,800+100.0%Added
Oppenheimer & Co Inc72,256$1.49M0.02%−801−1.1%Reduced
Snowden Capital Advisors LLC71,588$1.47M0.03%+5,706+8.7%Added
Beacon Pointe Advisors, LLC71,451$1.47M0.01%+36,458+104.2%Added
Fifth Third Bancorp65,469$1.35M0.00%−806−1.2%Reduced
The PNC Financial Services Group, Inc.65,425$1.35M0.00%+2,140+3.4%Added
Mesirow Financial Investment Management, Inc.61,156$1.26M0.02%+202+0.3%Added
Central Trust Co59,008$1.21M0.02%−1,100−1.8%Reduced
Harbour Investments, Inc.57,616$1.18M0.02%+270.0%Added
GWM Advisors LLC57,600$1.18M0.00%−6,536−10.2%Reduced
Invesco Ltd.54,311$1.12M0.00%−22,333−29.1%Reduced
Dakota Wealth Management54,052$1.11M0.02%+450+0.8%Added
PFG Investments, LLC47,492$976.4K0.04%+7,800+19.7%Added
David J Yvars Group45,208$923.8K0.45%+1,816+4.2%Added
Concurrent Investment Advisors, LLC44,345$911.7K0.01%+2,244+5.3%Added
Warren Averett Asset Management, LLC42,653$876.9K0.01%−2,583−5.7%Reduced
Western Wealth Management, LLC38,810$797.9K0.03%00.0%Unchanged
Brookstone Capital Management38,658$794.8K0.01%+10,318+36.4%Added
TrueMark Investments, LLC35,665$733.3K0.09%+2,361+7.1%Added
PW Nova Financial Services LLC35,485$729.6K0.16%+81+0.2%Added
Aptus Capital Advisors, LLC34,611$711.6K0.01%+59+0.2%Added
Quad-Cities Investment Group, LLC33,337$685.4K0.25%+2,774+9.1%Added
QTR Family Wealth, LLC32,408$666.3K0.23%+37+0.1%Added
NWF Advisory Services Inc.32,334$664.8K0.06%+2,000+6.6%Added
Waterloo Capital, L.P.32,122$660.4K0.04%+32,122New
Goldman Sachs Group Inc32,032$658.6K0.00%+386+1.2%Added
XTX Topco Ltd31,619$650.1K0.01%+31,619New
Wealth Enhancement Advisory Services, LLC31,007$644.9K0.00%+3,617+13.2%Added
Pathstone Holdings, LLC30,885$635.0K0.00%00.0%Unchanged
Advisory Advocates, LLC30,574$628.6K0.54%+250+0.8%Added
Integrated Wealth Concepts LLC29,734$611.3K0.00%+388+1.3%Added
D.A. Davidson & Co.29,301$602.4K0.00%+60.0%Added
Summit Financial, LLC29,230$601.0K0.01%+7,985+37.6%Added
Wealthcare Advisory Partners LLC29,166$599.7K0.01%+1,010+3.6%Added
Gryphon Financial Partners LLC28,982$595.9K0.05%00.0%Unchanged
Kovack Advisors, Inc.28,768$593.2K0.03%−2,929−9.2%Reduced
Mezzasalma Advisors, LLC26,800$551.0K0.11%−246−0.9%Reduced
Nations Financial Group Inc,26,662$548.2K0.03%+2,010+8.2%Added
Lowe Brockenbrough & Co Inc26,637$547.7K0.02%00.0%Unchanged
Doliver Advisors, LP26,484$544.5K0.12%00.0%Unchanged
We Are One Seven, LLC25,745$529.3K0.01%+25,745New
WCG Wealth Advisors LLC25,688$528.1K0.01%00.0%Unchanged
Baird Financial Group, Inc.24,878$511.5K0.00%+1,979+8.6%Added
Jane Street Group, LLC24,775$509.4K0.00%−10,406−29.6%Reduced
Creative Planning23,961$492.6K0.00%+23,961New
Fairman Group, LLC23,569$484.6K0.38%00.0%Unchanged
Guardian Wealth Advisors, LLC22,822$469.2K0.03%+59+0.3%Added
Uniting Wealth Partners, LLC22,519$463.0K0.09%−469−2.0%Reduced
CAPROCK Group, Inc.21,771$447.6K0.01%+2,032+10.3%Added