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Warren Buffett invests secretly through Berkshire Hathaway in MARINE, requiring filings with the SEC.

1 report, 1 independent Updated Aug 15

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What happened

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Who's involved

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Warren Buffett MARINE SEC

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The entities involved

Warren Buffett
American investor, entrepreneur and businessman
- Berkshire Hathaway is undergoing a leadership transition with Greg Abel set to take over from Warren Buffett, accompanied by investment write-downs.06:21
- Berkshire Hathaway, led by Warren Buffett, holds stakes in American Express and Moody's Corporation, demonstrating its diverse investment strategy.Sat 18:28
MARINE
company in the Czech Republic

Nothing else this week.
SEC
Slovak company
- Wedbush Securities Inc. purchased a new stake in the Capital Group Municipal Income ETF, filing a disclosure with the SEC.09:37
- Cboe Global Markets, Inc. filed a company disclosure with the SEC on October 25, 2026.09:34

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Coverage

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Aug 15MarketWatchWarren Buffett has secretly invested $5 billion into a mystery stock — and the trail leads to this industrial giant When Berkshire Hathaway’s 13-F filing drops after today’s market close, Warren Buff