SenesTech 10% owner Glenbrook Capital Management buys $706,000 of shares
Open market purchase reported on Form 4, filed Oct 19, 2026.
Snapshot
Glenbrook Capital Management, a holder of more than 10% of the shares of SenesTech (SNES), bought 983,804 shares in open market purchases between Oct 15, 2026 and Oct 19, 2026, about $706,000 at an average price of $0.72 a share, according to a Form 4 filed with the SEC on Oct 19, 2026.
- Independent Research
Market Data
| Company | 1D % | Price |
|---|---|---|
| ($SNES) | ▼ −1.53% | 0.69 |
as of 16:00 ET · Realtime derived data
What We Know
The filing lists 3 open market purchase lines: • Oct 15, 2026: 426,000 shares at $0.77. • Oct 16, 2026: 181,252 shares at $0.63. • Oct 19, 2026: 376,552 shares at $0.70.
After the last purchase, the filing reports 2,063,098 shares held indirectly in that account.
Octans View
The purchases raised the holding reported in that account by about 91%, computed from the filed share counts. An open market purchase is made with the insider's own money at the market price, unlike option exercises or stock awards, which this brief excludes. The filing does not say why the insider bought.
Bear Case · Room for Disagreement
Limits. Insiders must report trades within two business days; this brief covers one filing and does not net it against sales by the same person or other insiders. Prices are as filed; where a line shows a weighted average, the filing's footnotes give the range.
Method and source. Octans Research reads the structured Form 4 filed with the SEC, keeps open market purchases (code P) only, and computes the total value and the average price from the filed share counts and prices. The filed price must sit within 25% of the closing price on the trade date. The text is generated by a fixed template; no model wrote it.
Chart
Sources
- [1]SEC EDGAR — Form 4 filed by Glenbrook Capital Management for SenesTech, Oct 19, 2026
These are the sources this piece was drafted from. How we verify. Found an error? Tell us and we correct it in public.
10%
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