Calamos Advisors LLC: CSX position timeline

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

Calamos Advisors LLC held 1,714,109 CSX 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 1,714,109 shares
Change vs previous 13F -29,377 shares
0.26% of the 13F portfolio, value $81,471,601.
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: 1,690,905 shares
- Calamos Wealth Management LLC: 23,204 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2026-03-31
13F 1,743,486 shares
Change vs previous 13F +30,221 shares
0.25% of the 13F portfolio, value $71,570,101.
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: 1,721,213 shares
- Calamos Wealth Management LLC: 22,273 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-12-31
13F 1,713,265 shares
Change vs previous 13F +440,434 shares
0.23% of the 13F portfolio, value $62,105,857.
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: 1,691,627 shares
- Calamos Wealth Management LLC: 21,638 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-09-30
13F 1,272,831 shares
Change vs previous 13F +1,901 shares
0.16% of the 13F portfolio, value $45,198,229.
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: 1,258,374 shares
- Calamos Wealth Management LLC: 14,457 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-06-30
13F 1,270,930 shares
Change vs previous 13F -333,643 shares
0.16% of the 13F portfolio, value $41,470,446.
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: 1,255,670 shares
- Calamos Wealth Management LLC: 15,260 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-03-31
13F 1,604,573 shares
Change vs previous 13F +11,258 shares
0.2% of the 13F portfolio, value $47,222,584.
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: 1,585,241 shares
- Calamos Wealth Management LLC: 19,332 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-12-31
13F 1,593,315 shares
Change vs previous 13F -574,380 shares
0.22% of the 13F portfolio, value $51,416,263.
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: 1,573,189 shares
- Calamos Wealth Management LLC: 20,126 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-09-30
13F 2,167,695 shares
Change vs previous 13F not available
0.32% of the 13F portfolio, value $74,850,495.
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: 1,786,961 shares
- Calamos Wealth Management LLC: 380,734 shares
Acceptance time not in the bulk data set (spec §4.2).