Gregory Austin Ciongoli insider trades

Open-market stock purchases and sales by Gregory Austin Ciongoli, Director at Gossamer Bio, Inc, from SEC Form 4 filings since Aug 11, 2025.

Track record: 0% of 2 scored buys are up 5% or more since purchase, averaging -22%.

Recent trades

DateStockTradeValue
Sep 23, 2026GOSS Gossamer Bio, IncBought (not open market)—
Aug 27, 2026RGNX REGENXBIO IncBought$500K
Aug 26, 2026RGNX REGENXBIO IncBought$450K
Aug 25, 2026RGNX REGENXBIO IncBought (not open market)—
Aug 25, 2026RGNX REGENXBIO IncBought (not open market)—
Jun 9, 2026ATRA Atara Biotherapeutics, IncBought (not open market)—
Jan 12, 2026ZYME Zymeworks IncBought (not open market)—
Jan 12, 2026ZYME Zymeworks IncBought (not open market)—

Companies traded

  • GOSS Gossamer Bio, Inc: other filings, last Sep 23, 2026
  • RGNX REGENXBIO Inc: 2 buys, last Aug 27, 2026
  • ATRA Atara Biotherapeutics, Inc: other filings, last Jun 9, 2026
  • ZYME Zymeworks Inc: other filings, last Jan 12, 2026

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