Historical shareholding details of Calamos Advisors LLC holdings in Regeneron Pharmaceuticals, Inc. (REGN)

Monthly changes of Calamos Advisors LLC shareholding in Regeneron Pharmaceuticals, Inc. over the previous months

Month Name Total no. shares held Percent Holding
Mar 31, 2025 Calamos Advisors Llc 22,823 0.02%
Feb 28, 2025 Calamos Advisors Llc 22,823 0.02%
Jan 31, 2025 Calamos Advisors Llc 22,823 0.02%
Dec 31, 2024 Calamos Advisors Llc 22,658 0.02%
Dec 31, 2024 Calamos Advisors Llc 22,823 0.02%
Nov 30, 2024 Calamos Advisors Llc 13,123 0.01%
Oct 31, 2024 Calamos Advisors Llc 13,123 0.01%
Sep 30, 2024 Calamos Advisors Llc 12,135 0.01%
Sep 30, 2024 Calamos Advisors Llc 13,421 0.01%
Aug 31, 2024 Calamos Advisors Llc 13,421 0.01%
Jul 31, 2024 Calamos Advisors Llc 13,458 0.01%
Jun 30, 2024 Calamos Advisors Llc 12,433 0.01%
Jun 30, 2024 Calamos Advisors Llc 13,912 0.01%
May 31, 2024 Calamos Advisors Llc 13,912 0.01%
Apr 30, 2024 Calamos Advisors Llc 14,236 0.01%
Mar 31, 2024 Calamos Advisors Llc 12,887 0.01%
Mar 31, 2024 Calamos Advisors Llc 14,236 0.01%
Feb 29, 2024 Calamos Advisors Llc 14,246 0.01%
Jan 31, 2024 Calamos Advisors Llc 14,436 0.01%
Dec 31, 2023 Calamos Advisors Llc 13,211 0.01%
Dec 31, 2023 Calamos Advisors Llc 14,436 0.01%
Nov 30, 2023 Calamos Advisors Llc 14,436 0.01%
Oct 31, 2023 Calamos Advisors Llc 14,436 0.01%
Sep 30, 2023 Calamos Advisors Llc 13,384 0.01%
Sep 30, 2023 Calamos Advisors Llc 14,436 0.01%
Aug 31, 2023 Calamos Advisors Llc 14,436 0.01%
Jul 31, 2023 Calamos Advisors Llc 14,473 0.01%
Jun 30, 2023 Calamos Advisors Llc 13,384 0.01%
Jun 30, 2023 Calamos Advisors Llc 14,503 0.01%
May 31, 2023 Calamos Advisors Llc 14,513 0.01%
Mar 31, 2023 Calamos Advisors Llc 13,384 0.01%

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