Calamos Advisors LLC: CPST position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Calamos Advisors LLC on CPST, newest first. How the timeline and the estimate are built.

Calamos Advisors LLC held 442,857 CPST shares at 2026-06-30 per its 13F-HR filed 2026-07-31.

the latest 13F is the newest step

period ended2026-06-30
13F 442,857 shares
Change vs previous 13F -92,525 shares
0.04% of the 13F portfolio, value $12,315,853.
13F-HR 0001316507-26-000003 filed by Calamos Advisors LLC
Filed 2026-07-31 (acceptance time not in the bulk data set), ingested 2026-10-06 09:57:27 UTC
- Calamos Advisors LLC: 345,128 shares
- Calamos Wealth Management LLC: 97,729 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2026-03-31
13F 535,382 shares
Change vs previous 13F +123,110 shares
0.05% of the 13F portfolio, value $14,444,606.
13F-HR 0001316507-26-000002 filed by Calamos Advisors LLC
Filed 2026-05-04 (acceptance time not in the bulk data set), ingested 2026-10-06 09:58:43 UTC
- Calamos Advisors LLC: 433,044 shares
- Calamos Wealth Management LLC: 102,338 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-12-31
13F 412,272 shares
Change vs previous 13F +19,455 shares
0.04% of the 13F portfolio, value $11,139,590.
13F-HR 0001316507-26-000001 filed by Calamos Advisors LLC
Filed 2026-01-29 (acceptance time not in the bulk data set), ingested 2026-10-07 03:01:36 UTC
- Calamos Advisors LLC: 286,753 shares
- Calamos Wealth Management LLC: 125,519 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-09-30
13F 392,817 shares
Change vs previous 13F +6,334 shares
0.04% of the 13F portfolio, value $10,492,142.
13F-HR 0001316507-25-000003 filed by Calamos Advisors LLC
Filed 2025-10-20 (acceptance time not in the bulk data set), ingested 2026-10-07 03:02:25 UTC
- Calamos Advisors LLC: 256,325 shares
- Calamos Wealth Management LLC: 136,492 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-06-30
13F 386,483 shares
Change vs previous 13F +31,064 shares
0.04% of the 13F portfolio, value $10,091,071.
13F-HR 0001085146-25-004696 filed by Calamos Advisors LLC
Filed 2025-08-08 (acceptance time not in the bulk data set), ingested 2026-10-07 18:23:11 UTC
- Calamos Advisors LLC: 258,426 shares
- Calamos Wealth Management LLC: 128,057 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-03-31
13F 355,419 shares
Change vs previous 13F -55,260 shares
0.04% of the 13F portfolio, value $8,949,451.
13F-HR 0001085146-25-002415 filed by Calamos Advisors LLC
Filed 2025-04-29 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:06 UTC
- Calamos Advisors LLC: 204,225 shares
- Calamos Wealth Management LLC: 151,194 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-12-31
13F 410,679 shares
Change vs previous 13F +81,304 shares
0.04% of the 13F portfolio, value $10,398,392.
13F-HR 0001085146-25-000482 filed by Calamos Advisors LLC
Filed 2025-01-24 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:55 UTC
- Calamos Advisors LLC: 259,485 shares
- Calamos Wealth Management LLC: 151,194 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-09-30
13F 329,375 shares
Change vs previous 13F not available
0.04% of the 13F portfolio, value $8,257,431.
13F-HR 0001085146-24-005402 filed by Calamos Advisors LLC
Filed 2024-11-07 (acceptance time not in the bulk data set), ingested 2026-10-07 18:26:56 UTC
- Calamos Advisors LLC: 176,568 shares
- Calamos Wealth Management LLC: 152,807 shares
Acceptance time not in the bulk data set (spec §4.2).