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O'Brien Greene & Co. Inc

O'Brien Greene & Co. Inc is an Investment Adviser institutional filer with the SEC under CIK 1768635, reporting 141 portfolio positions, with 21 historical 13F filings on file. Most recent reporting period: 2026-06-30.

A Form 13F reports a manager's US-listed stock and option positions only. It does not include real estate, private funds, bonds, cash or non-US holdings, so a 13F portfolio value is not the firm's total assets under management (AUM).

  • State of incorporation: PA
  • Filing type: 13F-HR
  • Latest reporting period: 2026-06-30
  • Last filed: 2026-08-06

Top 10 portfolio positions

The largest reported holdings in O'Brien Greene & Co. Inc's most recent 13F filing, ranked by reported market value.

  1. Interactive Brokers Group Inc (IBKR)
  2. Sprott Physical Gold Trust (PHYS)
  3. Apple Computer Inc Com (AAPL)
  4. Berkshire Hathaway Inc Cl B (BRK.B)
  5. Franklin Ftse Brazil Etf (FLBR)
  6. Valero Energy Corp New Com (VLO)
  7. Williams Cos (WMB)
  8. Wal-Mart Stores (WMT)
  9. Union Pacific Corp (UNP)
  10. Eog Res Inc Com (EOG)
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