Frank E Thomas insider trades

Open-market stock purchases and sales by Frank E Thomas, Unknown at Spero Therapeutics, Inc, from SEC Form 4 filings since Aug 1, 2011.

Track record: 0% of 2 scored buys are up 5% or more since purchase, averaging -54%.

Recent trades

DateStockTradeValue
Jun 23, 2026SPRO Spero Therapeutics, IncBought (not open market)—
Jun 23, 2026SPRO Spero Therapeutics, IncBought (not open market)—
May 19, 2026LRMR Larimar Therapeutics, IncBought (not open market)—
Feb 27, 2026LRMR Larimar Therapeutics, IncBought$25K

Companies traded

  • SPRO Spero Therapeutics, Inc: other filings, last Jun 23, 2026
  • LRMR Larimar Therapeutics, Inc: 2 buys, last May 19, 2026
  • ORTX Orchard Therapeutics plc: 1 buy, last Jan 24, 2024
  • ZFGN Zafgen, Inc: other filings, last Jun 26, 2019
  • AMAG Amag Pharmaceuticals Inc: 4 buys, 5 sales, last Feb 23, 2017

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