CSQ · Insider Trading

Calamos Strategic Total Return Fund

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Every open-market purchase and sale reported by CSQ officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings

most recent

Open-Market Buys

code P

Sales

code S

Reporting Insiders

current holders

CSQ — Recent Form 4 Transactions (latest 2026-08-26)

Filed	Insider	Role	Type	Shares	Value
2026-08-26	MetLife Investment Management, LLC	10%+ Owner	J	−600,000	−$15.00M
2025-01-31	Thomas E Herman	VP and CFO	Buy	+23,190	+$424.67K
2024-10-09	Financial For Lutherans Thrivent	10%+ Owner	J	+660,000	+$16.50M
2024-09-10	MetLife Investment Management, LLC	10%+ Owner	J	−1,352,000	—
2023-12-06	John S. Koudounis	Vice President	Sell	−13,410	−$189.96K
2022-09-08	MetLife Investment Management, LLC	10%+ Owner	J	−652,000	—
2022-09-07	Financial For Lutherans Thrivent	10%+ Owner	J	−180,000	−$4.50M
2022-05-26	MetLife Investment Management, LLC	10%+ Owner	Buy	+320,000	+$8.00M
2022-05-26	MetLife Investment Management, LLC	10%+ Owner	Buy	+600,000	+$15.00M
2021-02-17	John S. Koudounis	Vice President	Buy	+13,410	+$224.96K
2020-12-18	John S. Koudounis	Vice President	Buy	+15,830	+$249.98K
2019-12-20	David D Tripple	Director	Sell	−500	−$6.75K
2018-01-03	Mark Mickey	Chief Compliance Officer	Buy	+2,500	+$30.19K
2017-01-25	John P Calamos Sr	President and Global CIO	Sell	−77,724	−$829.07K
2016-03-02	Theresa Hamacher	Director	Buy	+1,000	+$8.87K
2014-07-11	David D Tripple	Director	Sell	−1,000	−$11.98K
2009-12-22	John E Neal	Director	Sell	—	—
2009-12-22	John E Neal	Director	Sell	−17,200	−$149.07K
2009-12-18	John E Neal	Director	Sell	−16,700	−$144.79K
2009-07-10	David D Tripple	Director	Sell	−2,000	−$13.86K

CSQ — Current Insider Holders

Insider	Role	Shares Held	Value
Thomas E Herman	VP and CFO	23,190	$458.93K

CSQ Insider Trading FAQ

Who are the insiders at CSQ?

1 officers, directors and 10%+ beneficial owners currently report holdings in CSQ via SEC Form 4.

Are CSQ insiders buying or selling?

Across the 20 most recent Form 4 filings for CSQ, 7 were open-market purchases (code P) and 8 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.

How current is CSQ insider data?

Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent CSQ filing is dated 2026-08-26.

How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the CSQ quote page; the site-wide leaderboard is on the insider transactions hub.