Calamos Advisors LLC: WM position timeline

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

Calamos Advisors LLC held 226,391 WM 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 226,391 shares
Change vs previous 13F -72,817 shares
0.16% of the 13F portfolio, value $50,458,033.
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: 160,952 shares
- Calamos Wealth Management LLC: 65,439 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2026-03-31
13F 299,208 shares
Change vs previous 13F +25,746 shares
0.24% of the 13F portfolio, value $68,755,187.
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: 230,863 shares
- Calamos Wealth Management LLC: 68,345 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-12-31
13F 273,462 shares
Change vs previous 13F -67,913 shares
0.22% of the 13F portfolio, value $60,082,271.
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: 193,919 shares
- Calamos Wealth Management LLC: 79,543 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-09-30
13F 341,375 shares
Change vs previous 13F +45,101 shares
0.27% of the 13F portfolio, value $75,385,929.
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: 279,054 shares
- Calamos Wealth Management LLC: 62,321 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-06-30
13F 296,274 shares
Change vs previous 13F -47,097 shares
0.26% of the 13F portfolio, value $67,793,478.
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: 235,578 shares
- Calamos Wealth Management LLC: 60,696 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-03-31
13F 343,371 shares
Change vs previous 13F +8,371 shares
0.34% of the 13F portfolio, value $79,493,873.
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: 283,500 shares
- Calamos Wealth Management LLC: 59,871 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-12-31
13F 335,000 shares
Change vs previous 13F +114,290 shares
0.29% of the 13F portfolio, value $67,599,706.
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: 275,749 shares
- Calamos Wealth Management LLC: 59,251 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-09-30
13F 220,710 shares
Change vs previous 13F not available
0.2% of the 13F portfolio, value $45,819,419.
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: 161,513 shares
- Calamos Wealth Management LLC: 59,197 shares
Acceptance time not in the bulk data set (spec §4.2).