BlackRock, Inc.: COST position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BlackRock, Inc. on COST, newest first. How the timeline and the estimate are built.
BlackRock, Inc. held 34,202,834 COST shares at 2026-06-30 per its 13F-HR filed 2026-08-07.
the latest 13F is the newest step
- period ended2026-06-3013F 34,202,834 sharesChange vs previous 13F -744,206 shares
0.48% of the 13F portfolio, value $31,995,724,771.
13F-HR 0002012383-26-003238 filed by BlackRock, Inc.
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F 34,947,040 sharesChange vs previous 13F -152,481 shares
0.61% of the 13F portfolio, value $34,822,278,793.
13F-HR 0002012383-26-001841 filed by BlackRock, Inc.
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 35,099,521 sharesChange vs previous 13F +317,592 shares
0.51% of the 13F portfolio, value $30,267,721,230.
13F-HR 0002012383-26-000920 filed by BlackRock, Inc.
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-09-3013F 34,781,929 sharesChange vs previous 13F -801,895 shares
0.57% of the 13F portfolio, value $32,195,196,993.
13F-HR 0002012383-25-002949 filed by BlackRock, Inc.
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-06-3013F 35,583,824 sharesChange vs previous 13F +651,656 shares
0.67% of the 13F portfolio, value $35,225,851,339.
13F-HR 0001060021-25-000120 filed by BlackRock, Inc.
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-03-3113F 34,932,168 sharesChange vs previous 13F +170,677 shares
0.7% of the 13F portfolio, value $33,038,146,486.
13F-HR 0001576419-25-000869 filed by BlackRock, Inc.
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-12-3113F 34,761,491 sharesChange vs previous 13F +1,205,914 shares
0.65% of the 13F portfolio, value $31,850,911,391.
13F-HR 0001060021-25-000002 filed by BlackRock, Inc.
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-09-3013F 33,555,577 sharesChange vs previous 13F not available
0.63% of the 13F portfolio, value $29,747,689,988.
13F-HR 0001426459-24-000006 filed by BlackRock, Inc.
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).