Who
GLENBROOK CAPITAL MANAGEMENT
10% owner
Company insider
Files Form 4 as: 10% owner, SenesTech; 10% owner and Other, Beeline Holdings.
In numbers
- Trades disclosed
- 73
- Buys
- 41
- Sells
- 0
- Bought
- $3.0M
- Sold
- $0
- Companies
- 2
- Companies where not an officer
- 2
- First trade
- 19 Jun 2018
- Last trade
- 22 Oct 2026
- Last filed
- 22 Oct 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 22 Oct 2026filed 22 Oct 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $5,9907,500 at $0.7986 | filing |
| 21 Oct 2026filed 22 Oct 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $44K60,000 at $0.7385 | filing |
| 20 Oct 2026filed 22 Oct 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $25K36,375 at $0.6746 | filing |
| 19 Oct 2026filed 19 Oct 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $265K376,552 at $0.7036 | filing |
| 16 Oct 2026filed 19 Oct 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $114K181,252 at $0.6289 | filing |
| 15 Oct 2026filed 19 Oct 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $327K426,000 at $0.7679 | filing |
| 7 Aug 2026filed 10 Aug 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $8,4226,490 at $1.30 | filing |
| 7 Aug 2026filed 10 Aug 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $8,4376,490 at $1.30 | filing |
| 6 Aug 2026filed 10 Aug 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $19K15,000 at $1.30 | filing |
| 6 Aug 2026filed 10 Aug 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $20K15,000 at $1.30 | filing |
| 20 Jul 2026filed 22 Jul 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $52K35,000 at $1.47 | filing |
| 20 Jul 2026filed 22 Jul 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $51K35,000 at $1.47 | filing |
| 30 Jun 2026filed 2 Jul 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $53K35,000 at $1.51 | filing |
| 30 Jun 2026filed 2 Jul 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $53K35,000 at $1.51 | filing |
| 29 Jun 2026filed 29 Jun 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $7,8845,172 at $1.52 | filing |
| 29 Jun 2026filed 29 Jun 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $7,8615,172 at $1.52 | filing |
| 26 Jun 2026filed 29 Jun 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $11K6,812 at $1.56 | filing |
| 26 Jun 2026filed 29 Jun 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $11K6,812 at $1.56 | filing |
| 25 Jun 2026filed 29 Jun 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $14K9,442 at $1.53 | filing |
| 25 Jun 2026filed 29 Jun 2026 | SNES SenesTechAgricultural Chemicals & Fertilizers | SEC FORM 4 Bought | $14K9,442 at $1.53 | filing |
News
Senestech (NASDAQ:SNES) Stock: Insider Glenbrook Capital Management Buys 36,375 Sharesthemarketsdaily.com · 22 Oct 2026Glenbrook Capital Management Issues Letter to San Juan Royalty Trust Officer Requesting Explanation and Transparency Around Expenses, Capital Expenditures and the Trust's Financial Positionprnewswire.com · 10 Sep 2026Head-To-Head Analysis: Tronox (NYSE:TROX) vs. Senestech (NASDAQ:SNES)SNES · tickerreport.com · 23 Oct 2026SenesTech Receives Nasdaq Minimum Bid Price Notification and Highlights Record Third Quarter RevenueSNES · manilatimes.net · 22 Oct 2026Senestech (NASDAQ:SNES) Major Shareholder Acquires $114,188.76 in StockSNES · tickerreport.com · 22 Oct 2026
2 headlines in the last 90 days name GLENBROOK CAPITAL MANAGEMENT; 3 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.