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CGONasdaqFiscal year ends October 31

CALAMOS GLOBAL TOTAL RETURN FUND

$11.79+0.19 (+1.64%)

Close on Oct 19, 2026

Market cap
–
P/E (TTM)
–
Dividend yield
–

Ownership

Institutional holdings as of Jun 30, 2026, from 13F filings

Held by institutions
2M
Shares held, 13F filers
Institutional holders
45
8 new, 2 sold out
Net institutional buying
0M
In Q2 2026
Insider trades, 12 months
0 buys · 0 sales
Open-market trades only

Shares held by institutions

Holders of more than 5%

Latest Schedule 13D (active) or 13G (passive) filed by each holder

HolderShares% of classFilingAs of
BlackRock Portfolio Management LLC360,000100.00%13G (passive)Aug 31, 2026

Top institutional holders

13F holdings as of Jun 30, 2026

HolderShares% of CGOValueChange% of portfolio
Morgan Stanley464,707–$6.35M+13,8560.00%
Advisors Asset Management, Inc.240,943–$3.29M+133,5670.05%
LPL Financial LLC212,238–$2.90M+3,4390.00%
Shaker Financial Services, LLC177,106–$2.42M−39,7880.76%
Principal Securities, Inc.176,675–$2.41M+1,0510.03%
Envestnet Asset Management Inc166,026–$2.27M+1,4590.00%
Integrated Wealth Concepts LLC158,585–$2.17M−260.01%
Guggenheim Capital LLC92,824–$1.27M−46,0250.01%
UBS Group AG72,596–$991.66K−4690.00%
Wolverine Asset Management LLC61,070–$834.22K−43,3360.01%
Cohen & Steers, Inc.56,975–$778−7,4820.00%
Brookstone Capital Management52,485–$716.94K+3,7250.01%
Advisory Solutions Group, LLC52,381–$715.52KNew0.24%
Harbour Investments, Inc.48,020–$655.95K–0.01%
PMG Family Office LLC46,760–$638.74K+1,0620.59%
Invesco Ltd.43,809–$598.43K−1930.00%
Bank Of America Corp /De/43,778–$598.01K+5,7280.00%
Cambridge Investment Research Advisors, Inc.24,540–$336+12,1910.00%
Royal Bank of Canada23,508–$321.00K−1,5000.00%
Osaic Holdings, Inc.23,395–$319.59K−3130.00%

Institutional buying and selling by quarter

Positions opened, added to, reduced and closed by 13F filers

QuarterHoldersShares heldNew / addedReduced / closedShares boughtShares sold
Q2 2026452M8 / 1514 / 20M0M
Q1 2026402M7 / 1810 / 30M0M
Q4 2025382M3 / 1513 / 40M0M
Q3 2025392M5 / 1312 / 40M0M
Q2 2025392M4 / 1510 / 20M0M
Q1 2025372M3 / 1211 / 20M0M
Q4 2024362M9 / 1110 / 20M0M
Q3 2024302M2 / 149 / 10M0M
Q2 2024292M3 / 135 / 40M1M
Q1 2024302M1 / 149 / 41M0M
Q4 2023332M3 / 158 / 11M0M
Q3 2023311M4 / 117 / 20M0M

Officers, directors and major owners

People who filed Forms 3, 4 or 5 in the last two years

NameRoleShares ownedLatest filing
John S. KoudounisVice President–Sep 9, 2025
Walter M. KellyChief Compliance Officer–Aug 4, 2025
Thomas P. Kiley IIIVice President–Dec 27, 2024
Jeffrey S. Phlegar––Sep 9, 2025
Hugh Armstrong––Sep 9, 2025

Insider trades

Common stock transactions reported on Form 4, newest first

InsiderDateTransactionSharesPriceValueShares after
John E. Neal
Director
Nov 1, 2023Sale−7,057$8.20$57.87K0
John E. Neal
Director
Mar 20, 2020Sale−10,093$7.41$74.79K7,057
David D. Tripple
Director
Dec 19, 2019Sale−500$13.18$6.59K0
Mark Mickey
Chief Compliance Officer
Jan 2, 2018Sale−1,000$14.98$14.98K0
Theresa Hamacher
Director
Mar 1, 2016Buy+1,000$10.16$10.16K1,000
David D. Tripple
Director
Jul 10, 2014Sale−1,000$14.69$14.69K500
David D. Tripple
Director
Jul 9, 2009Sale−1,900$10.98$20.86K1,500
John P. Calamos Sr
president and chairman, Director
Aug 16, 2007Buy+3,700$14.35$53.10K109,300
John P. Calamos Sr
president and chairman, Director
Aug 16, 2007Buy+5,000$14.23$71.15K105,600
Mark Mickey
chief compliance officer
Jul 24, 2007Sale−400$18.05$7.22K1,000
Mark Mickey
chief compliance officer
Jul 24, 2007Sale−100$18.02$1.80K2,400
Mark Mickey
chief compliance officer
Jul 24, 2007Sale−300$18.03$5.41K1,400
Mark Mickey
chief compliance officer
Jul 24, 2007Sale−200$18.00$3.60K1,700
Mark Mickey
chief compliance officer
Jul 24, 2007Sale−500$18.01$9.01K1,900
John P. Calamos Sr
president and chairman, Director
Mar 1, 2007Buy+700$16.17$11.32K1,300
John P. Calamos Sr
president and chairman, Director
Mar 1, 2007Buy+300$16.29$4.89K600
John P. Calamos Sr
president and chairman, Director
Mar 1, 2007Buy+100$16.32$1.63K300
John P. Calamos Sr
president and chairman, Director
Mar 1, 2007Buy+100$16.22$1.62K200
John P. Calamos Sr
president and chairman, Director
Mar 1, 2007Buy+100$16.20$1.62K100
John P. Calamos Sr
president and chairman, Director
Mar 1, 2007Buy+4,500$16.37$73.67K5,800
Stephen B. Timbers
Director
Oct 11, 2006Buy+4,500$15.86$71.37K6,500
John P. Calamos Sr
president and chairman, Director
May 11, 2006Buy+8,000$14.90$119.20K68,440
John P. Calamos Sr
president and chairman, Director
May 10, 2006Buy+4,400$14.90$65.56K52,040
John P. Calamos Sr
president and chairman, Director
May 10, 2006Buy+8,400$15.00$126.00K60,440
John P. Calamos Sr
president and chairman, Director
May 8, 2006Buy+2,400$14.59$35.02K47,640
John P. Calamos Sr
president and chairman, Director
May 5, 2006Buy+11,300$14.50$163.85K45,240
John P. Calamos Sr
president and chairman, Director
May 4, 2006Buy+7,500$14.44$108.30K30,140
John P. Calamos Sr
president and chairman, Director
May 4, 2006Buy+3,800$14.45$54.91K33,940
John P. Calamos Sr
president and chairman, Director
May 3, 2006Buy+11,300$14.45$163.29K22,640
John P. Calamos Sr
president and chairman, Director
May 2, 2006Buy+11,340$14.42$163.52K11,340
Stephen B. Timbers
Director
May 2, 2006Buy+2,000$14.40$28.80K2,000
Mark Mickey
Chief Compliance Officer
Apr 6, 2006Buy+2,500$14.55$36.38K2,500
John E. Neal
Director
Apr 6, 2006Buy+17,150$14.54$249.36K17,150
David D. Tripple
Director
Jan 18, 2006Buy+3,400$14.48$49.23K3,400
John P. Calamos Sr
president and chairman, Director
Jan 3, 2006Buy+500$14.15$7.08K45,600
John P. Calamos Sr
president and chairman, Director
Jan 3, 2006Buy+1,400$13.95$19.53K45,100
John P. Calamos Sr
president and chairman, Director
Jan 3, 2006Buy+700$13.94$9.76K43,700
John P. Calamos Sr
president and chairman, Director
Jan 3, 2006Buy+200$13.93$2.79K43,000
John P. Calamos Sr
president and chairman, Director
Jan 3, 2006Buy+200$13.89$2.78K40,200
John P. Calamos Sr
president and chairman, Director
Dec 30, 2005Buy+900$13.96$12.56K36,900
John P. Calamos Sr
president and chairman, Director
Dec 30, 2005Buy+2,800$13.95$39.06K36,000
John P. Calamos Sr
president and chairman, Director
Dec 30, 2005Buy+1,000$13.93$13.93K33,200
John P. Calamos Sr
president and chairman, Director
Dec 30, 2005Buy+300$13.92$4.18K32,200
John P. Calamos Sr
president and chairman, Director
Dec 30, 2005Buy+1,000$13.90$13.90K31,900
John P. Calamos Sr
president and chairman, Director
Dec 30, 2005Buy+500$13.88$6.94K30,900
John P. Calamos Sr
president and chairman, Director
Dec 30, 2005Buy+900$13.85$12.47K30,400
John P. Calamos Sr
president and chairman, Director
Dec 30, 2005Buy+500$13.83$6.92K29,500
John P. Calamos Sr
president and chairman, Director
Dec 30, 2005Buy+1,000$14.15$14.15K40,000
John P. Calamos Sr
president and chairman, Director
Dec 30, 2005Buy+600$14.10$8.46K39,000
John P. Calamos Sr
president and chairman, Director
Dec 30, 2005Buy+400$14.05$5.62K38,400
John P. Calamos Sr
president and chairman, Director
Dec 30, 2005Buy+400$13.97$5.59K37,300
John P. Calamos Sr
president and chairman, Director
Dec 30, 2005Buy+700$14.00$9.80K38,000
John P. Calamos Sr
president and chairman, Director
Dec 30, 2005Buy+1,000$13.82$13.82K29,000
John P. Calamos Sr
president and chairman, Director
Jan 3, 2005Buy+2,600$13.90$36.14K42,800

Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.