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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 $801.0M in total; no superinvestor holds it.

13F holders, Q1 2026

Institutional positions in Calamos Strategic Total Return Fund as of Mar 31, 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
219
+8 vs. Q4 2025
Shares held
38.6M
+130.3K (+0.3%) vs. Q4 2025
Total value
$663.4M
−$77.6M (−10.5%) vs. Q4 2025
New holders
20
78 more added
Sold out
12
50 more reduced

5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2026: 219 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 heldQ1 2026: $663.4M
Q1 2021: $425.1MQ2 2021: $460.4MQ3 2021: $459.6MQ4 2021: $523.2MQ1 2022: $471.3MQ2 2022: $366.2MQ3 2022: $357.6MQ4 2022: $389.2MQ1 2023: $410.4MQ2 2023: $437.1MQ3 2023: $422.6MQ4 2023: $453.9MQ1 2024: $513.6MQ2 2024: $544.3MQ3 2024: $573.8MQ4 2024: $603.7MQ1 2025: $558.1MQ2 2025: $644.5MQ3 2025: $721.5MQ4 2025: $743.6MQ1 2026: $663.4MQ2 2026: $801.0M
Institutions holding CSQ and their total value by quarter
QuarterHoldersValue
Q2 2026223$801.0M
Q1 2026219$663.4M
Q4 2025216$743.6M
Q3 2025209$721.5M
Q2 2025202$644.5M
Q1 2025201$558.1M
Q4 2024203$603.7M
Q3 2024190$573.8M
Q2 2024189$544.3M
Q1 2024177$513.6M
Q4 2023173$453.9M
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$523.2M
Q3 2021144$459.6M
Q2 2021148$460.4M
Q1 2021149$425.1M

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Calamos Strategic Total Return Fund; share changes are against Q4 2025.

Institutions holding CSQ in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Summit Financial, LLC21,245$363.7K0.00%+42+0.2%Added
WealthTrust Axiom LLC21,013$359.7K0.09%00.0%Unchanged
Smith, Moore & Co.20,400$349.2K0.03%+250+1.2%Added
Game Plan Financial Advisors, LLC20,000$342.4K0.15%00.0%Unchanged
Coquina Private Wealth LLC19,986$342.2K0.28%+41+0.2%Added
Mosaic Family Wealth Partners, LLC19,801$339.0K0.03%+213+1.1%Added
CAPROCK Group, Inc.19,739$337.9K0.01%00.0%Unchanged
Strategies Wealth Advisors, LLC18,962$324.6K0.03%00.0%Unchanged
Dana Investment Advisors, Inc.18,787$321.6K0.01%00.0%Unchanged
Cascade Financial Partners, LLC18,723$320.5K0.03%+18,723New
San Luis Wealth Advisors LLC18,649$319.3K0.05%00.0%Unchanged
Mount Yale Investment Advisors, LLC18,605$318.5K0.01%00.0%Unchanged
Vestmark Advisory Solutions, Inc.18,605$318.5K0.00%00.0%Unchanged
Wedbush Securities Inc18,515$317.0K0.01%+1,456+8.5%Added
Kestra Private Wealth Services, LLC18,459$316.0K0.00%−14,779−44.5%Reduced
Empower Advisory Group, LLC18,409$315.2K0.00%00.0%Unchanged
Compass Planning Associates Inc17,898$306.4K0.20%00.0%Unchanged
EverSource Wealth Advisors, LLC17,835$305.3K0.01%+24+0.1%Added
Bay Capital Advisors, LLC17,528$300.1K0.18%−500−2.8%Reduced
Modern Wealth Management, LLC16,800$292.2K0.01%00.0%Unchanged
Stephens Inc16,366$280.2K0.00%00.0%Unchanged
Chicago Partners Investment Group LLC14,449$279.3K0.01%−28−0.2%Reduced
Live Oak Private Wealth LLC16,179$277.0K0.04%00.0%Unchanged
EP Wealth Advisors, LLC16,148$276.5K0.00%−1,500−8.5%Reduced
Dynamic Advisor Solutions LLC15,621$267.4K0.01%−476−3.0%Reduced
NBC Securities, Inc.15,396$263.6K0.02%−49−0.3%Reduced
International Assets Investment Management, LLC15,066$262.0K0.02%00.0%Unchanged
Nicolet Bankshares Inc14,967$260.3K0.01%+14,967New
Cresset Asset Management, LLC15,000$256.8K0.00%00.0%Unchanged
Silverlake Wealth Management LLC14,964$256.2K0.05%+56+0.4%Added
Institute for Wealth Management, LLC.14,834$254.0K0.03%−313−2.1%Reduced
SMH Capital Advisors Inc14,794$253.3K0.72%+17+0.1%Added
XML Financial, LLC14,678$251.3K0.02%00.0%Unchanged
CI Private Wealth, LLC14,572$249.5K0.00%−3,500−19.4%Reduced
JPMorgan Chase & Co14,959$246.8K0.00%−692−4.4%Reduced
Fundamentun, LLC14,283$244.5K0.01%+231+1.6%Added
AQR Capital Management LLC13,980$239.3K0.00%+13,980New
MML Investors Services, LLC13,948$238.8K0.00%−334−2.3%Reduced
Lantz Financial LLC13,538$231.8K0.05%00.0%Unchanged
Kellett Schaffner Wealth Advisors LLC13,477$230.7K0.13%00.0%Unchanged
IHT Wealth Management, LLC13,355$228.6K0.01%+1,804+15.6%Added
Consolidated Planning Corp13,340$228.4K0.04%−462−3.3%Reduced
Moseley Investment Management Inc13,275$227.3K0.07%−500−3.6%Reduced
Insigneo Advisory Services, LLC13,174$225.5K0.02%00.0%Unchanged
Signal Advisors Wealth, LLC12,885$220.6K0.02%00.0%Unchanged
Farther Finance Advisors, LLC12,561$218.4K0.00%+8,527+211.4%Added
Calton & Associates, Inc.12,693$217.3K0.03%−3,598−22.1%Reduced
Closed-End Fund Advisors, Inc.12,663$216.8K0.22%+12,663New
Founders Financial Alliance, LLC12,567$215.1K0.04%−4,014−24.2%Reduced
Prospera Financial Services Inc12,316$210.9K0.00%+12,316New
Benjamin Edwards Inc12,001$205.5K0.00%+1,410+13.3%Added
Norris Financial Group, LLC12,000$205.4K0.07%00.0%Unchanged
Ashton Thomas Private Wealth, LLC11,960$204.8K0.00%00.0%Unchanged
LaSalle St. Investment Advisors, LLC11,868$203.2K0.03%+77+0.7%Added
Private Wealth Group, LLC11,404$195.2K0.09%00.0%Unchanged
Neuberger Berman Group LLC11,136$190.6K0.00%00.0%Unchanged
Virtu Financial LLC11,084$190.0K0.01%+11,084New
Continuum Advisory, LLC10,957$187.6K0.02%00.0%Unchanged
Azimuth Capital Investment Management LLC10,885$186.4K0.01%00.0%Unchanged
Susquehanna International Group, LLP10,790$184.7K0.00%+10,790New
Northwestern Mutual Wealth Management Co10,329$176.8K0.00%+418+4.2%Added
Kayne Anderson Rudnick Investment Management LLC10,063$172.3K0.00%00.0%Unchanged
PlanVest Financial, Inc9,673$165.6K0.13%+9,673New
Advisory Services Network, LLC8,354$143.0K0.00%+8,354New
IFP Advisors, Inc8,273$141.6K0.00%00.0%Unchanged
Halbert Hargrove Global Advisors, LLC7,837$134.2K0.01%00.0%Unchanged
CWM, LLC7,440$127.4K0.00%+10.0%Added
Private Trust Co NA6,454$110.5K0.01%−3,580−35.7%Reduced
Huntington National Bank–$109.2K0.00%––
Barrett & Company, Inc.6,249$107.0K0.04%00.0%Unchanged
Blue Bell Private Wealth Management, LLC5,570$95.4K0.01%+5,570New
Allworth Financial LP5,488$94.0K0.00%−11−0.2%Reduced
Atlantic Union Bankshares Corp5,250$89.9K0.00%−1,376−20.8%Reduced
Delta Asset Management LLC5,105$87.4K0.01%00.0%Unchanged
Rothschild Investment LLC5,000$85.6K0.00%00.0%Unchanged
Keating Financial Advisory Services, Inc.4,990$85.4K0.01%+97+2.0%Added
MAI Capital Management4,977$85.2K0.00%00.0%Unchanged
CX Institutional4,402$75.0K0.00%−168−3.7%Reduced
CoreCap Advisors, LLC3,500$59.9K0.00%−500−12.5%Reduced
Parallel Advisors, LLC3,443$59.0K0.00%−2,950−46.1%Reduced
Wolff Wiese Magana LLC3,090$52.9K0.03%00.0%Unchanged
Eastern Bank3,060$52.4K0.00%00.0%Unchanged
Truvestments Capital LLC2,634$45.1K0.01%+51+2.0%Added
Dunhill Financial, LLC2,428$41.6K0.01%00.0%Unchanged
Bartlett & Co. Wealth Management LLC2,112$41.4K0.00%+1,842+682.2%Added
Smartleaf Asset Management LLC2,502$41.3K0.00%00.0%Unchanged
Asset Dedication, LLC2,400$41.1K0.00%00.0%Unchanged
N.E.W. Advisory Services LLC2,215$37.9K0.00%−2,185−49.7%Reduced
US Bancorp1,937$33.2K0.00%−300−13.4%Reduced
Westside Investment Management, Inc.1,754$30.0K0.00%00.0%Unchanged
Pacific Center for Financial Services1,692$29.0K0.01%00.0%Unchanged
Assetmark, Inc1,683$28.8K0.00%+1,041+162.1%Added
AdvisorNet Financial, Inc1,600$27.4K0.00%00.0%Unchanged
Kilter Group LLC1,500$25.7K0.01%+1,500New
Princeton Global Asset Management LLC1,200$20.5K0.00%00.0%Unchanged
First Pacific Financial1,153$19.7K0.00%+23+2.0%Added
Hilltop National Bank1,118$19.1K0.00%00.0%Unchanged
Geneos Wealth Management Inc.1,110$19.0K0.00%00.0%Unchanged
Quent Capital, LLC1,027$17.6K0.00%00.0%Unchanged
Fortis Group Advisors, LLC1,000$17.1K0.00%00.0%Unchanged