Jacob Maas insider trades

Open-market stock purchases and sales by Jacob Maas, Executive VP at Graham Holdings Co, from SEC Form 4 filings since Feb 27, 2020.

Track record: 100% of 1 scored buy are up 5% or more since purchase, averaging +139%.

Recent trades

DateStockTradeValue
Jan 16, 2026GHC Graham Holdings CoSold (not open market)$434K
Jan 16, 2026GHC Graham Holdings CoBought (not open market)—
Oct 20, 2025GHC Graham Holdings CoSold (not open market)$495K
Oct 20, 2025GHC Graham Holdings CoBought (not open market)—

Companies traded

  • GHC Graham Holdings Co: 1 buy, last Jan 16, 2026

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