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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, Q4 2025

Institutional positions in Calamos Strategic Total Return Fund as of Dec 31, 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
216
+8 vs. Q3 2025
Shares held
38.6M
+1.19M (+3.2%) vs. Q3 2025
Total value
$743.6M
+$22.3M (+3.1%) vs. Q3 2025
New holders
30
75 more added
Sold out
22
49 more reduced

1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 216 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 heldQ4 2025: $743.6M
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, Q4 2025

Shares, value and share of portfolio for each institution holding Calamos Strategic Total Return Fund; share changes are against Q3 2025.

Institutions holding CSQ in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Russell Investments Group, Ltd.0$40.00%0Unchanged
Tower Research Capital LLC (TRC)14$2690.00%+14New
Tidemark, LLC17$3260.00%00.0%Unchanged
Estate Planners Group, LLC150$2.88K0.00%+150New
SOA Wealth Advisors, LLC.179$3.43K0.00%+3+1.7%Added
City State Bank200$3.84K0.00%00.0%Unchanged
Ares Financial Consulting, LLC247$4.74K0.00%+247New
Key Financial Inc250$4.80K0.00%00.0%Unchanged
Bartlett & Co. Wealth Management LLC270$5.18K0.00%00.0%Unchanged
GAMMA Investing LLC300$5.76K0.00%+300New
North Star Investment Management Corp.400$7.68K0.00%00.0%Unchanged
Evolution Wealth Management Inc.410$7.87K0.01%00.0%Unchanged
Ameriflex Group, Inc.450$8.64K0.00%+150+50.0%Added
Boyd Watterson Asset Management LLC500$9.60K0.00%00.0%Unchanged
Fairscale Capital, LLC500$9.66K0.01%00.0%Unchanged
Navalign, LLC572$11.0K0.00%+572New
Assetmark, Inc642$12.3K0.00%−379−37.1%Reduced
Salomon & Ludwin, LLC686$13.2K0.00%00.0%Unchanged
Private Wealth Asset Management, LLC750$14.4K0.00%+750New
Armstrong Advisory Group, Inc831$16.0K0.00%+13+1.6%Added
Hilton Head Capital Partners, LLC900$17.3K0.01%+900New
Fortis Group Advisors, LLC1,000$19.2K0.00%00.0%Unchanged
Flagship Harbor Advisors, LLC1,000$19.2K0.00%+1,000New
Quent Capital, LLC1,027$19.7K0.00%00.0%Unchanged
Geneos Wealth Management Inc.1,110$21.3K0.00%00.0%Unchanged
Hilltop National Bank1,118$21.5K0.01%00.0%Unchanged
First Pacific Financial1,130$21.7K0.00%+18+1.6%Added
Princeton Global Asset Management LLC1,200$23.0K0.00%00.0%Unchanged
ORG Partners LLC1,500$28.8K0.01%00.0%Unchanged
AdvisorNet Financial, Inc1,600$30.7K0.00%00.0%Unchanged
Pacific Center for Financial Services1,692$32.6K0.01%00.0%Unchanged
Westside Investment Management, Inc.1,754$33.7K0.01%00.0%Unchanged
US Bancorp2,237$43.0K0.00%−7,349−76.7%Reduced
Asset Dedication, LLC2,400$46.1K0.00%00.0%Unchanged
Dunhill Financial, LLC2,428$46.6K0.01%00.0%Unchanged
Smartleaf Asset Management LLC2,502$48.6K0.00%00.0%Unchanged
Truvestments Capital LLC2,583$49.6K0.01%+42+1.7%Added
Eastern Bank3,060$58.8K0.00%00.0%Unchanged
Wolff Wiese Magana LLC3,090$59.3K0.03%00.0%Unchanged
SRS Capital Advisors, Inc.3,152$60.5K0.00%+2,968+1,613.0%Added
CoreCap Advisors, LLC4,000$76.8K0.00%−2,500−38.5%Reduced
Farther Finance Advisors, LLC4,034$77.5K0.00%+165+4.3%Added
N.E.W. Advisory Services LLC4,400$84.5K0.01%+2,200+100.0%Added
CX Institutional4,570$88.0K0.00%+74+1.6%Added
Keating Financial Advisory Services, Inc.4,893$94.0K0.01%+4,893New
MAI Capital Management4,977$95.6K0.00%00.0%Unchanged
Rothschild Investment LLC5,000$96.0K0.01%00.0%Unchanged
Delta Asset Management LLC5,105$98.0K0.01%00.0%Unchanged
Allworth Financial LP5,499$105.6K0.00%−20.0%Reduced
Barrett & Company, Inc.6,249$120.0K0.04%00.0%Unchanged
Parallel Advisors, LLC6,393$122.8K0.00%+519+8.8%Added
Atlantic Union Bankshares Corp6,626$127.2K0.00%+6,626New
Huntington National Bank–$129.0K0.00%––
Global Retirement Partners, LLC7,006$134.5K0.00%+67+1.0%Added
CWM, LLC7,439$143.0K0.00%−470−5.9%Reduced
Halbert Hargrove Global Advisors, LLC7,837$150.5K0.01%+7,837New
IFP Advisors, Inc8,273$158.8K0.00%00.0%Unchanged
Ronald Blue Trust, Inc.9,768$187.5K0.00%+8,470+652.5%Added
Northwestern Mutual Wealth Management Co9,911$190.3K0.00%+3,576+56.4%Added
Private Trust Co NA10,034$192.6K0.02%00.0%Unchanged
Kayne Anderson Rudnick Investment Management LLC10,063$193.2K0.00%00.0%Unchanged
Benjamin Edwards Inc10,591$203.3K0.00%+10,591New
Mercer Global Advisors Inc10,593$203.4K0.00%−241−2.2%Reduced
Azimuth Capital Investment Management LLC10,885$209.0K0.01%+10,885New
Continuum Advisory, LLC10,957$210.4K0.02%+550+5.3%Added
Neuberger Berman Group LLC11,136$213.8K0.00%+11,136New
Private Wealth Group, LLC11,404$219.0K0.11%00.0%Unchanged
IHT Wealth Management, LLC11,551$221.8K0.01%00.0%Unchanged
LaSalle St. Investment Advisors, LLC11,791$226.0K0.04%+64+0.5%Added
Norris Financial Group, LLC12,000$230.4K0.08%00.0%Unchanged
Ashton Thomas Private Wealth, LLC11,960$231.1K0.01%00.0%Unchanged
Signal Advisors Wealth, LLC12,885$247.4K0.02%+12,885New
Canal Capital Management, LLC13,034$250.3K0.04%−5,350−29.1%Reduced
City of London Investment Management Co Ltd13,170$252.9K0.02%+13,170New
Insigneo Advisory Services, LLC13,174$252.9K0.02%00.0%Unchanged
Kellett Schaffner Wealth Advisors LLC13,477$258.8K0.15%00.0%Unchanged
Lantz Financial LLC13,538$259.9K0.05%00.0%Unchanged
Moseley Investment Management Inc13,775$264.5K0.08%00.0%Unchanged
Consolidated Planning Corp13,802$265.0K0.03%+20+0.1%Added
Fundamentun, LLC14,052$269.8K0.01%+189+1.4%Added
MML Investors Services, LLC14,282$274.2K0.00%+477+3.5%Added
Chicago Partners Investment Group LLC14,477$280.1K0.01%+2,137+17.3%Added
XML Financial, LLC14,678$281.8K0.02%−6,150−29.5%Reduced
SMH Capital Advisors Inc14,777$283.7K0.58%−304−2.0%Reduced
Silverlake Wealth Management LLC14,908$286.2K0.06%−846−5.4%Reduced
International Assets Investment Management, LLC15,066$289.3K0.02%00.0%Unchanged
Cresset Asset Management, LLC15,000$289.8K0.00%00.0%Unchanged
Institute for Wealth Management, LLC.15,147$290.8K0.03%−450−2.9%Reduced
NBC Securities, Inc.15,445$296.6K0.02%+305+2.0%Added
JPMorgan Chase & Co15,651$300.5K0.00%+11,973+325.5%Added
Dynamic Advisor Solutions LLC16,097$309.1K0.01%−994−5.8%Reduced
Live Oak Private Wealth LLC16,179$310.6K0.04%00.0%Unchanged
Calton & Associates, Inc.16,291$312.8K0.05%+186+1.2%Added
Stephens Inc16,366$314.2K0.00%−500−3.0%Reduced
Founders Financial Alliance, LLC16,581$318.4K0.06%+71+0.4%Added
Modern Wealth Management, LLC16,800$322.6K0.01%−1,500−8.2%Reduced
Beacon Pointe Advisors, LLC16,817$322.9K0.00%+16,817New
Wedbush Securities Inc17,059$328.0K0.01%−3,970−18.9%Reduced
Sequoia Financial Advisors, LLC17,271$331.6K0.00%00.0%Unchanged
EP Wealth Advisors, LLC17,648$338.8K0.00%+17,648New