Calamos Advisors LLC: UNH position timeline

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

Calamos Advisors LLC held 349,834 UNH 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 349,834 shares
Change vs previous 13F +88,363 shares
0.47% of the 13F portfolio, value $145,401,554.
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: 309,379 shares
- Calamos Wealth Management LLC: 40,455 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2026-03-31
13F 261,471 shares
Change vs previous 13F +9,854 shares
0.25% of the 13F portfolio, value $70,751,444.
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: 250,888 shares
- Calamos Wealth Management LLC: 10,583 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-12-31
13F 251,617 shares
Change vs previous 13F -5,113 shares
0.31% of the 13F portfolio, value $83,061,314.
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: 239,803 shares
- Calamos Wealth Management LLC: 11,814 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-09-30
13F 256,730 shares
Change vs previous 13F -39,489 shares
0.32% of the 13F portfolio, value $88,648,897.
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: 246,883 shares
- Calamos Wealth Management LLC: 9,847 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-06-30
13F 296,219 shares
Change vs previous 13F -41,434 shares
0.36% of the 13F portfolio, value $92,411,467.
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: 287,095 shares
- Calamos Wealth Management LLC: 9,124 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-03-31
13F 337,653 shares
Change vs previous 13F -37,892 shares
0.76% of the 13F portfolio, value $176,845,823.
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: 304,924 shares
- Calamos Wealth Management LLC: 32,729 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-12-31
13F 375,545 shares
Change vs previous 13F +26,638 shares
0.8% of the 13F portfolio, value $189,973,333.
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: 335,374 shares
- Calamos Wealth Management LLC: 40,171 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-09-30
13F 348,907 shares
Change vs previous 13F not available
0.88% of the 13F portfolio, value $203,999,027.
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: 308,893 shares
- Calamos Wealth Management LLC: 40,014 shares
Acceptance time not in the bulk data set (spec §4.2).