Marathon Trading Investment Management LLC: CMCSA position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Marathon Trading Investment Management LLC on CMCSA, newest first. How the timeline and the estimate are built.

Marathon Trading Investment Management LLC held 11,900 CMCSA 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 11,900 shares
Change vs previous 13F +11,900 shares
0.03% of the 13F portfolio, value $292,145.
13F-HR 0001572748-26-000008 filed by Marathon Trading Investment Management LLC
Filed 2026-08-12 (acceptance time not in the bulk data set), ingested 2026-10-06 09:57:27 UTC
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-06-30
13F 0 shares
Change vs previous 13F -6,369 shares
13F-HR 0001572748-25-000010 filed by Marathon Trading Investment Management LLC
Filed 2025-08-07 (acceptance time not in the bulk data set), ingested 2026-10-07 18:23:11 UTC
Acceptance time not in the bulk data set (spec §4.2).
Exited: the 13F for this period no longer lists the position.
period ended2025-03-31
13F 6,369 shares
Change vs previous 13F not available
0.12% of the 13F portfolio, value $235,016.
13F-HR 0001572748-25-000008 filed by Marathon Trading Investment Management LLC
Filed 2025-05-13 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:06 UTC
Acceptance time not in the bulk data set (spec §4.2).