Calamos Advisors LLC: MDT position timeline

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

Calamos Advisors LLC held 436,913 MDT 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 436,913 shares
Change vs previous 13F -176,933 shares
0.11% of the 13F portfolio, value $34,179,704.
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: 425,833 shares
- Calamos Wealth Management LLC: 11,080 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2026-03-31
13F 613,846 shares
Change vs previous 13F +22,013 shares
0.18% of the 13F portfolio, value $53,189,757.
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: 602,965 shares
- Calamos Wealth Management LLC: 10,881 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-12-31
13F 591,833 shares
Change vs previous 13F +41,224 shares
0.21% of the 13F portfolio, value $56,851,478.
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: 577,837 shares
- Calamos Wealth Management LLC: 13,996 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-09-30
13F 550,609 shares
Change vs previous 13F +120,302 shares
0.19% of the 13F portfolio, value $52,440,001.
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: 538,018 shares
- Calamos Wealth Management LLC: 12,591 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-06-30
13F 430,307 shares
Change vs previous 13F +75 shares
0.15% of the 13F portfolio, value $37,509,861.
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: 420,660 shares
- Calamos Wealth Management LLC: 9,647 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-03-31
13F 430,232 shares
Change vs previous 13F -116,550 shares
0.17% of the 13F portfolio, value $38,660,648.
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: 420,482 shares
- Calamos Wealth Management LLC: 9,750 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-12-31
13F 546,782 shares
Change vs previous 13F -825 shares
0.18% of the 13F portfolio, value $43,676,946.
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: 536,376 shares
- Calamos Wealth Management LLC: 10,406 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-09-30
13F 547,607 shares
Change vs previous 13F not available
0.21% of the 13F portfolio, value $49,301,058.
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: 535,804 shares
- Calamos Wealth Management LLC: 11,803 shares
Acceptance time not in the bulk data set (spec §4.2).