GLENBROOK CAPITAL MANAGEMENT purchased 91.2% of their position (983.80K shares) of SENESTECH, INC. on the open market
Open‑market purchase worth $706.1K — a major conviction buy. The strongest form of insider conviction signal.
P · 3 purchases
Filed: 10/19/2026ACC: 0000902664-26-004215
10% Owner
Since Feb 2026
+983.80K
Net shares
Net buyer
$706.1K
Total acquired
3
Open market trades
3B · 0S
3
Total transactions
983.80K acquired
Non-Derivative Transactions3
Common Stock, $0.001 par value per share ("Common Stock")
Indirect
Shares
+426K
Price / share
$0.77
Trade value
$327.13K
% of position
39.5%
10/15/2026
1.08M→1.51M
Common Stock
Indirect
Shares
+181.25K
Price / share
$0.63
Trade value
$113.99K
% of position
12.0%
10/16/2026
1.51M→1.69M
Common Stock
Indirect
Shares
+376.55K
Price / share
$0.70
Trade value
$264.94K
% of position
22.3%
10/19/2026
1.69M→2.06M
Total
Net shares
+983.80K
Net value
$706.06K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock, $0.001 par value per share ("Common Stock") Indirect | 10/15/2026 | P · Purchase | +426K | $0.77 | $327.13K | 39.5% | 1.08M | 1.51M |
| Common Stock Indirect | 10/16/2026 | P · Purchase | +181.25K | $0.63 | $113.99K | 12.0% | 1.51M | 1.69M |
| Common Stock Indirect | 10/19/2026 | P · Purchase | +376.55K | $0.70 | $264.94K | 22.3% | 1.69M | 2.06M |
| Total | +983.80K | $706.06K | ||||||
Derivative Transactions0
No derivative transactions reported