Institutional investors face the U.S. Securities and Exchange Commission’s quarterly Form 13F deadline on 14 August, obliging money managers with at least $100 million in U.S.-listed equities to disclose their holdings. Data vendors are updating filings in real time, giving traders an early look at portfolio shifts across technology, healthcare and other sectors. The day’s most-watched release is Berkshire Hathaway’s report, which will unveil a confidential $5 billion position that Warren Buffett has kept sealed since last year under a temporary SEC waiver. Options activity indicates investors are positioning around industrial names such as Caterpillar, Deere, Honeywell and UPS, the companies most frequently rumored to be the mystery holding. Market participants also monitor fresh disclosures from hedge-fund heavyweights including Appaloosa Management, Bridgewater Associates and Icahn Enterprises, searching for signals on sector rotations. Online dashboards such as QuiverQuant’s Institutional Holdings tracker compile the filings, allowing users to sort by fund, sector and quarter as updates roll in.