GAMCO Investors (Gabelli): REGN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of GAMCO Investors (Gabelli) on REGN, newest first. How the timeline and the estimate are built.

GAMCO Investors (Gabelli) held 2,532 REGN shares at 2026-06-30 per its 13F-HR filed 2026-08-12.

the latest 13F is the newest step

period ended2026-06-30
13F 2,532 shares
Change vs previous 13F -304 shares
0.01% of the 13F portfolio, value $1,578,804.
13F-HR 0001140361-26-032509 filed by GABELLI FUNDS LLC
Filed 2026-08-12 (acceptance time not in the bulk data set), ingested 2026-10-06 09:57:27 UTC
- GAMCO INVESTORS, INC. ET AL: 657 shares
- GABELLI FUNDS LLC: 1,875 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2026-03-31
13F 2,836 shares
Change vs previous 13F +348 shares
0.01% of the 13F portfolio, value $2,191,207.
13F-HR 0001140361-26-021337 filed by GABELLI FUNDS LLC
Filed 2026-05-14 (acceptance time not in the bulk data set), ingested 2026-10-06 09:58:43 UTC
- GAMCO INVESTORS, INC. ET AL: 639 shares
- GABELLI FUNDS LLC: 2,197 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-12-31
13F 2,488 shares
Change vs previous 13F -24 shares
0.01% of the 13F portfolio, value $1,920,413.
13F-HR 0001140361-26-003893 filed by GABELLI FUNDS LLC
Filed 2026-02-05 (acceptance time not in the bulk data set), ingested 2026-10-07 03:01:36 UTC
- GAMCO INVESTORS, INC. ET AL: 649 shares
- GABELLI FUNDS LLC: 1,839 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-09-30
13F 2,512 shares
Change vs previous 13F +47 shares
0.01% of the 13F portfolio, value $1,412,422.
13F-HR 0001140361-25-041671 filed by GABELLI FUNDS LLC
Filed 2025-11-12 (acceptance time not in the bulk data set), ingested 2026-10-07 03:02:25 UTC
- GAMCO INVESTORS, INC. ET AL: 646 shares
- GABELLI FUNDS LLC: 1,866 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-06-30
13F 2,465 shares
Change vs previous 13F +68 shares
0.01% of the 13F portfolio, value $1,294,125.
13F-HR 0001140361-25-030816 filed by GABELLI FUNDS LLC
Filed 2025-08-13 (acceptance time not in the bulk data set), ingested 2026-10-07 18:23:11 UTC
- GAMCO INVESTORS, INC. ET AL: 602 shares
- GABELLI FUNDS LLC: 1,863 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-03-31
13F 2,397 shares
Change vs previous 13F -67 shares
0.01% of the 13F portfolio, value $1,520,249.
13F-HR 0001140361-25-018974 filed by GABELLI FUNDS LLC
Filed 2025-05-14 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:06 UTC
- GAMCO INVESTORS, INC. ET AL: 589 shares
- GABELLI FUNDS LLC: 1,808 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-12-31
13F 2,464 shares
Change vs previous 13F +156 shares
0.01% of the 13F portfolio, value $1,755,181.
13F-HR 0001140361-25-004328 filed by GABELLI FUNDS LLC
Filed 2025-02-13 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:55 UTC
- GAMCO INVESTORS, INC. ET AL: 563 shares
- GABELLI FUNDS LLC: 1,901 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-09-30
13F 2,308 shares
Change vs previous 13F not available
0.01% of the 13F portfolio, value $2,426,262.
13F-HR 0001140361-24-046503 filed by GABELLI FUNDS LLC
Filed 2024-11-13 (acceptance time not in the bulk data set), ingested 2026-10-07 18:26:56 UTC
- GAMCO INVESTORS, INC. ET AL: 365 shares
- GABELLI FUNDS LLC: 1,943 shares
Acceptance time not in the bulk data set (spec §4.2).