Grantham, Mayo, Van Otterloo & Co. LLC: KLAC position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Grantham, Mayo, Van Otterloo & Co. LLC on KLAC, newest first. How the timeline and the estimate are built.
Grantham, Mayo, Van Otterloo & Co. LLC held 3,893,893 KLAC shares at 2026-06-30 per its 13F-HR filed 2026-08-13.
the latest 13F is the newest step
- period ended2026-06-3013F 3,893,893 sharesChange vs previous 13F +3,432,691 shares
2.65% of the 13F portfolio, value $1,174,827,293.
13F-HR 0001072613-26-000636 filed by Grantham, Mayo, Van Otterloo & Co. LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F 461,202 sharesChange vs previous 13F -47,555 shares
1.74% of the 13F portfolio, value $679,082,455.
13F-HR 0001072613-26-000397 filed by Grantham, Mayo, Van Otterloo & Co. LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 508,757 sharesChange vs previous 13F +70,156 shares
1.58% of the 13F portfolio, value $618,181,818.
13F-HR 0001072613-26-000185 filed by Grantham, Mayo, Van Otterloo & Co. LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-09-3013F 438,601 sharesChange vs previous 13F -126,452 shares
1.33% of the 13F portfolio, value $473,076,547.
13F-HR 0001072613-25-000786 filed by Grantham, Mayo, Van Otterloo & Co. LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-06-3013F 565,053 sharesChange vs previous 13F +11,411 shares
1.53% of the 13F portfolio, value $506,141,574.
13F-HR 0001072613-25-000542 filed by Grantham, Mayo, Van Otterloo & Co. LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-03-3113F 553,642 sharesChange vs previous 13F +6,283 shares
1.19% of the 13F portfolio, value $376,365,675.
13F-HR 0001072613-25-000369 filed by Grantham, Mayo, Van Otterloo & Co. LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-12-3113F 547,359 sharesChange vs previous 13F -3,561 shares
1.12% of the 13F portfolio, value $344,901,678.
13F-HR 0001072613-25-000109 filed by Grantham, Mayo, Van Otterloo & Co. LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-09-3013F 550,920 sharesChange vs previous 13F not available
1.34% of the 13F portfolio, value $426,637,957.
13F-HR 0001072613-24-000820 filed by Grantham, Mayo, Van Otterloo & Co. LLC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).