Form4insider filings, from the source

SEC Form 3 · accession 0001193125-26-381177

CALAMOS STRATEGIC TOTAL RETURN FUND · CSQ

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner
Period of report
Aug 26, 2026
Accepted (ET)
Sep 3, 2026 · 9:44 am EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001275214

Table I — non-derivative securities

SecurityDateCodeSharesPriceA/DOwned afterD/INature of ownership
Series H Mandatory Redeemable Preferred Sharesholding———560,000D
Series H Mandatory Redeemable Preferred Sharesholding———80,000IHeld of record by Lincoln Life & Annuity Company of New York, an affiliated insurance company under

Table II — derivative securities

No Table II lines on this filing.

Remarks

The amount reported reflects the aggregate Series H Mandatory Redeemable Preferred Shares of Calamos Strategic Total Return Fund held by the Reporting Person together with its affiliate, Lincoln Life & Annuity Company of New York, as described in Table I above. The aggregate holdings of these affiliated insurance companies exceed 10% of the Series H Mandatory Redeemable Preferred Shares outstanding, triggering this Form 3 under Section 30(h) of the Investment Company Act of 1940.