ROSENBLUM SILVERMAN SUTTON S F INC /CA: AMZN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of ROSENBLUM SILVERMAN SUTTON S F INC /CA on AMZN, newest first. How the timeline and the estimate are built.

ROSENBLUM SILVERMAN SUTTON S F INC /CA held 94,068 AMZN shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

period ended2026-06-30
13F 94,068 shares
Change vs previous 13F -1,683 shares
5.39% of the 13F portfolio, value $22,420,167.
13F-HR 0000918893-26-000006 filed by ROSENBLUM SILVERMAN SUTTON S F INC /CA
Filed 2026-08-13 (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 ended2026-03-31
13F 95,751 shares
Change vs previous 13F -705 shares
5.22% of the 13F portfolio, value $19,942,061.
13F-HR 0000918893-26-000004 filed by ROSENBLUM SILVERMAN SUTTON S F INC /CA
Filed 2026-05-13 (acceptance time not in the bulk data set), ingested 2026-10-06 09:58:43 UTC
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-12-31
13F 96,456 shares
Change vs previous 13F -494 shares
5.15% of the 13F portfolio, value $22,263,974.
13F-HR 0000918893-26-000002 filed by ROSENBLUM SILVERMAN SUTTON S F INC /CA
Filed 2026-02-13 (acceptance time not in the bulk data set), ingested 2026-10-07 03:01:36 UTC
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-09-30
13F 96,950 shares
Change vs previous 13F -215 shares
4.86% of the 13F portfolio, value $21,287,312.
13F-HR 0000918893-25-000010 filed by ROSENBLUM SILVERMAN SUTTON S F INC /CA
Filed 2025-11-13 (acceptance time not in the bulk data set), ingested 2026-10-07 03:02:25 UTC
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-06-30
13F 97,165 shares
Change vs previous 13F -515 shares
5.17% of the 13F portfolio, value $21,317,029.
13F-HR 0000918893-25-000006 filed by ROSENBLUM SILVERMAN SUTTON S F INC /CA
Filed 2025-08-13 (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).
period ended2025-03-31
13F 97,680 shares
Change vs previous 13F -628 shares
5.12% of the 13F portfolio, value $18,584,597.
13F-HR 0000918893-25-000004 filed by ROSENBLUM SILVERMAN SUTTON S F INC /CA
Filed 2025-05-12 (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).
period ended2024-12-31
13F 98,308 shares
Change vs previous 13F -1,299 shares
5.42% of the 13F portfolio, value $21,567,792.
13F-HR 0000918893-25-000002 filed by ROSENBLUM SILVERMAN SUTTON S F INC /CA
Filed 2025-02-13 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:55 UTC
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-09-30
13F 99,607 shares
Change vs previous 13F not available
4.75% of the 13F portfolio, value $18,559,772.
13F-HR 0000918893-24-000010 filed by ROSENBLUM SILVERMAN SUTTON S F INC /CA
Filed 2024-11-14 (acceptance time not in the bulk data set), ingested 2026-10-07 18:26:56 UTC
Acceptance time not in the bulk data set (spec §4.2).