Largest active 13G stakes
Passive or institutional large-stake positions disclosed in parsed Schedule 13G filings.
AMTM
J · Heavy Construction Other Than Bldg Const Contractors
Latest available SEC filing: 10-Q ·
Insider disclosure · Filed · Report period 07 Aug 2026
Financial facts · Filed
SEC filing · Filed
SEC filing · Filed
SEC filing · Filed
SEC filing · Filed
SEC filing · Filed
SEC filing · Filed
Choose a share class to see reported 13F positions and quarterly changes. Different securities have separate holder histories.
CIK 0000052988 · SEC filing index. Filing dates describe disclosures, not live market data.
Passive or institutional large-stake positions disclosed in parsed Schedule 13G filings.