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US INSIDER PROFILE · NON-SCORING RESEARCH

GLENBROOK CAPITAL MANAGEMENT

10% Owner

Identity: SEC reporting-owner CIK · Reporting-owner CIK: 0001273782

Purchase history

Companies traded
1
Purchases · 12M
13
Purchases · 24M
13
Average purchase
$75.8K
Median purchase
$51.5K
Gross purchase value
$985.5K

Companies: SenesTech, Inc.

13 SEC accession(s) · 0 joint-owner event(s). Values are reported Form 4 transaction values in USD.

Qualifying purchase disclosures

PublishedCompanyTickerRoleReported valueSEC source
2026-08-10SenesTech, Inc.SNES10% Owner$27.9KOpen filing
2026-07-22SenesTech, Inc.SNES10% Owner$51.5KOpen filing
2026-07-02SenesTech, Inc.SNES10% Owner$52.9KOpen filing
2026-06-29SenesTech, Inc.SNES10% Owner$39.1KOpen filing
2026-06-22SenesTech, Inc.SNES10% Owner$13.6KOpen filing
2026-06-08SenesTech, Inc.SNES10% Owner$45.5KOpen filing
2026-05-18SenesTech, Inc.SNES10% Owner$53.4KOpen filing
2026-04-30SenesTech, Inc.SNES10% Owner$4.4KOpen filing
2026-03-17SenesTech, Inc.SNES10% Owner$329.9KOpen filing
2026-02-19SenesTech, Inc.SNES10% Owner$200.5KOpen filing
2026-02-13SenesTech, Inc.SNES10% Owner$56.6KOpen filing
2026-02-06SenesTech, Inc.SNES10% Owner$15.5KOpen filing
2026-02-03SenesTech, Inc.SNES10% Owner$94.7KOpen filing

Post-purchase outcomes

Excess return = stock return − S&P 500 ETF (SPY adjusted close) return. Returns start on the first shared trading session on or after publication.

No completed point-in-time price outcome is available yet.

Research patterns

First purchase in 12M
1/13
Large purchase ≥ $100k
2/13
Cluster buying · 15D
3/13
Buying the dip
0/—

Routine / opportunistic: Not classifiable. These labels never affect the score or ranking.

Small samples remain visible but are not scored. This research enrichment never affects US-v1.1.