SenesTech: 10% owner Glenbrook Capital Management bought 103,875 shares

What happened

• Glenbrook Capital Management, listed as a 10% owner, purchased a total of 103,875 shares of SenesTech in open market or private purchases on Oct 20-22, 2026. The filing reports purchases of 36,375 shares at $0.67 for $24,539 on Oct 20, 2026; 60,000 shares at $0.74 for $44,310 on Oct 21, 2026; and 7,500 shares at $0.80 for $5,990 on Oct 22, 2026. Total reported cash paid: $74,839.

Key details

• Transaction codes: P = Purchase.
• Transaction dates and reported prices:
  • Oct 20, 2026: 36,375 shares at $0.67 (weighted average); total $24,539. (Footnote F1: purchases priced between $0.6613 and $0.6933.)
  • Oct 21, 2026: 60,000 shares at $0.74 (weighted average); total $44,310. (Footnote F3: purchases priced between $0.7227 and $0.7564.)
  • Oct 22, 2026: 7,500 shares at $0.80 (weighted average); total $5,990. (Footnote F4: purchases priced between $0.7877 and $0.8095.)
• Shares owned after the transactions: not provided in this filing.
• Footnote F2: the securities are held directly by accounts for which Glenbrook Capital Management serves as investment manager; Glenbrook disclaims beneficial ownership except to the extent of any pecuniary interest.
• Filing date: Oct 22, 2026; the filing does not indicate it was late.

Why it may matter

• The filing identifies Glenbrook Capital Management as a 10% owner and an investment manager, not as an executive.
• The reported prices are weighted averages covering multiple trades; the reporting person offers to provide a breakdown of prices on request (per footnotes).
• This filing does not show why the insider traded or why the company acted.