GLENBROOK CAPITAL MANAGEMENT 4

What Happened

• Glenbrook Capital Management, listed as a 10% owner (institutional investment manager), made open-market purchases of SenesTech (SNES) common stock. The reporting person acquired a total of 28,389 shares across three trades for aggregate proceeds of about $45,536, indicating purchases rather than sales.

Key Details

• Transaction dates and prices:
  • 2026-06-04: 8,230 shares at $1.65 — $13,547 (reported)
  • 2026-06-05: 13,159 shares at $1.57 — $20,685 (reported)
  • 2026-06-08: 7,000 shares at $1.61 — $11,304 (reported)
• Total shares bought: 28,389; total reported value: ~$45,536.
• Shares owned after transaction: Not specified in the provided filing excerpt.
• Footnote: The filing states Glenbrook serves as investment manager for the account holding these shares and disclaims beneficial ownership for Section 16 purposes except for any pecuniary interest (F1).
• Timeliness: Filing date 2026-06-08 covering trades from 2026-06-04 to 2026-06-08; the filing appears timely.

Context

• These are open-market purchases by a 10% institutional owner (investment manager), not an executive. Purchases by institutional holders can signal accumulation but do not on their own explain the manager’s motives. No options, awards, gifts, or tax-withholding transactions are reported in this filing.