Calamos Strategic Total Return Fund
US ˙ NasdaqGS ˙ US1281251017

SecurityCSQ / Calamos Strategic Total Return Fund
InstitutionStephens Inc /ar/
Latest Disclosed Ownership16,366 shares
Latest Disclosed Value $ 280,186
Stephens Inc /ar/ ownership in CSQ / Calamos Strategic Total Return Fund

On April 28, 2026 - Stephens Inc /ar/ filed a 13F-HR form disclosing ownership of 16,366 shares of Calamos Strategic Total Return Fund (US:CSQ) valued at $280,186 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 16,366 shares of Calamos Strategic Total Return Fund. This represents a change in shares of 0.00% during the quarter. The current value of the position is $337,958 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-04-28 2026-03-31 13F CALAMOS STRATEGIC TOTAL RETU COM SH BEN INT 128125101 16,366 0 0.00 280 -10.83 0.0035
2026-02-05 2025-12-31 13F CALAMOS STRATEGIC TOTAL RETU COM SH BEN INT 128125101 16,366 -500 -2.96 314 -3.38 0.0039
2025-10-27 2025-09-30 13F CALAMOS STRATEGIC TOTAL RETU COM SH BEN INT 128125101 16,866 0 0.00 325 5.86 0.0041
2025-07-29 2025-06-30 13F CALAMOS STRATEGIC TOTAL RETU COM SH BEN INT 128125101 16,866 -394 -2.28 308 10.04 0.0042
2025-05-01 2025-03-31 13F CALAMOS STRATEGIC TOTAL RETU COM SH BEN INT 128125101 17,260 0 0.00 279 -8.52 0.0041
2025-01-28 2024-12-31 13F CALAMOS STRATEGIC TOTAL RETU COM SH BEN INT 128125101 17,260 394 2.34 306 4.45 0.0043
2024-10-28 2024-09-30 13F CALAMOS STRATEGIC TOTAL RETU COM SH BEN INT 128125101 16,866 0 0.00 293 2.82 0.0042
2024-08-06 2024-06-30 13F CALAMOS STRATEGIC TOTAL RETU COM SH BEN INT 128125101 16,866 0 0.00 284 2.90 0.0043
2024-05-15 2024-03-31 13F CALAMOS STRATEGIC TOTAL RETU COM SH BEN INT 128125101 16,866 0 0.00 276 10.40 0.0043
2024-02-13 2023-12-31 13F CALAMOS STRATEGIC TOTAL RETU COM SH BEN INT 128125101 16,866 1,466 9.52 251 15.74 0.0043
2023-11-14 2023-09-30 13F CALAMOS STRATEGIC TOTAL RETU COM SH BEN INT 128125101 15,400 0 0.00 217 -4.85 0.0042
2023-08-14 2023-06-30 13F CALAMOS STRATEGIC TOTAL RETU COM SH BEN INT 128125101 15,400 0 0.00 227 5.58 0.0041
2023-05-15 2023-03-31 13F CALAMOS STRATEGIC TOTAL RETU COM SH BEN INT 128125101 15,400 0 0.00 216 4.37 0.0041
2023-02-14 2022-12-31 13F/A-1 CALAMOS STRATEGIC TOTAL RETU COM SH BEN INT 128125101 15,400 0 0.00 207 6.74 0.0042
2023-01-25 2022-12-31 13F CALAMOS STRATEGIC TOTAL RETU OM SH BEN INT 128125101 15,400 0 0 0.0042
2022-11-02 2022-09-30 13F CALAMOS STRATEGIC TOTAL RETU OM SH BEN INT 128125101 15,400 -3,211 -17.25 193 -20.90 0.0041
2022-08-03 2022-06-30 13F CALAMOS STRATEGIC TOTAL RETU OM SH BEN INT 128125101 18,611 0 0.00 244 -25.15 0.0049
2022-05-04 2022-03-31 13F CALAMOS STRATEGIC TOTAL RETU OM SH BEN INT 128125101 18,611 0 0.00 326 -9.19 0.0053
2022-03-07 2021-12-31 13F CALAMOS STRATEGIC TOTAL RETU OM SH BEN INT 128125101 18,611 0 0.00 359 8.79 0.0054
2021-10-27 2021-09-30 13F CALAMOS STRATEGIC TOTAL RETU COM SH BEN INT 128125101 18,611 -250 -1.33 330 -3.79 0.0051
2021-08-12 2021-06-30 13F CALAMOS STRATEGIC TOTAL RETU COM SH BEN INT 128125101 18,861 -650 -3.33 343 2.08 0.0051
2021-05-14 2021-03-31 13F CALAMOS STRATEGIC TOTAL RETU COM SH BEN INT 128125101 19,511 190 0.98 336 10.16 0.0055
2021-02-10 2020-12-31 13F CALAMOS STRATEGIC TOTL RETN COM SH BEN INT 128125101 19,321 -400 -2.03 305 15.09 0.0055
2020-11-13 2020-09-30 13F CALAMOS STRATEGIC TOTL RETN COM SH BEN INT 128125101 19,721 -1,550 -7.29 265 0.38 0.0052
2020-08-24 2020-06-30 13F CALAMOS STRATEGIC TOTL RETN COM SH BEN INT 128125101 21,271 -8,050 -27.45 264 -7.69 0.0057
2020-05-14 2020-03-31 13F CALAMOS STRATEGIC TOTL RETN COM SH BEN INT 128125101 29,321 10,110 52.63 286 9.58 0.0076
2020-02-14 2019-12-31 13F CALAMOS STRATEGIC TOTL RETN COM SH BEN INT 128125101 19,211 -1,685 -8.06 261 -1.88 0.0055
2019-10-18 2019-09-30 13F CALAMOS STRATEGIC TOTL RETN COM SH BEN INT 128125101 20,896 -450 -2.11 266 -2.21 0.0059
2019-08-01 2019-06-30 13F CALAMOS STRATEGIC TOTL RETN COM SH BEN INT 128125101 21,346 -650 -2.96 272 -0.37 0.0062
2019-05-03 2019-03-31 13F CALAMOS STRATEGIC TOTL RETN COM SH BEN INT 128125101 21,996 -2,125 -8.81 273 7.06 0.0065
2019-02-11 2018-12-31 13F CALAMOS STRATEGIC TOTL RETN COM SH BEN INT 128125101 24,121 3,855 19.02 255 -6.25 0.0072
2018-11-14 2018-09-30 13F CALAMOS STRATEGIC TOTL RETN COM SH BEN INT 128125101 20,266 -3,020 -12.97 272 -7.80 0.0068
2018-08-10 2018-06-30 13F CALAMOS STRATEGIC TOTL RETN COM SH BEN INT 128125101 23,286 23,286 295 0.0089
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.