WESTFIELD CAPITAL MANAGEMENT CO LP: AMD position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of WESTFIELD CAPITAL MANAGEMENT CO LP on AMD, newest first. How the timeline and the estimate are built.
WESTFIELD CAPITAL MANAGEMENT CO LP held 403,081 AMD shares at 2026-06-30 per its 13F-HR filed 2026-08-12.
the latest 13F is the newest step
- period ended2026-06-3013F 403,081 sharesChange vs previous 13F +398,061 shares
0.76% of the 13F portfolio, value $234,153,542.
13F-HR 0001177719-26-000021 filed by WESTFIELD CAPITAL MANAGEMENT CO LP
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F 5,020 sharesChange vs previous 13F -245,435 shares
<0.01% of the 13F portfolio, value $1,021,219.
13F-HR 0001177719-26-000018 filed by WESTFIELD CAPITAL MANAGEMENT CO LP
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 250,455 sharesChange vs previous 13F +250,455 shares
0.22% of the 13F portfolio, value $53,637,377.
13F-HR 0001177719-26-000005 filed by WESTFIELD CAPITAL MANAGEMENT CO LP
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-12-3113F 0 sharesChange vs previous 13F -345,136 shares
13F-HR 0001085146-25-000986 filed by WESTFIELD CAPITAL MANAGEMENT CO LP
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
Exited: the 13F for this period no longer lists the position.
- period ended2024-09-3013F 345,136 sharesChange vs previous 13F not available
0.26% of the 13F portfolio, value $56,629,991.
13F-HR 0001085146-24-005556 filed by WESTFIELD CAPITAL MANAGEMENT CO LP
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).