SenesTech (SNES) 10% Owner Management Buys $114K of Stock

By TradeTexts Research Desk Oct 19, 2026, 6:02 PM EDT

Key Points

Glenbrook Capital Management bought 181,252 shares of SenesTech, Inc. (SNES) for a total value of $113,989.38 on October 16, 2026, according to a Form 4 filing with the SEC.
After the trade, Glenbrook Capital Management indirectly holds 1,686,546 $SNES shares, up 12.04% from before the trade.
The animal pest control company recently traded around $0.70 per share, well below its 52-week high of $4.04, with trailing twelve-month revenue standing at $2.37 million.
CEO Michael Edell also completed multiple share purchases in the weeks leading up to the transaction, adding to prior insider buying activity.

Since the trade, $SNES is up 7.7% to date (from the $0.65 close on Oct 16, 2026).

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Ten-percent owner Glenbrook Capital Management purchased 181,252 shares of SenesTech, Inc. (SNES) on October 16, 2026, boosting its holdings by 12.04%. The transaction was detailed in a Form 4 filing with the Securities and Exchange Commission.

SNES SenesTech, Inc.

$0.70 -68.33% year to date

Daily close · Oct 19, 2026

Insider trading track record

Glenbrook Capital Management vs. the S&P 500

YTD return -53.07% hypothetical

All-time return -53.09% S&P 500 +7.11%

vs. S&P 500 -60.20% behind the index

Hypothetical returns from Glenbrook Capital Management's disclosed trades, not real profit or advice. How we model this.

Inside Glenbrook Capital Management's SenesTech Trade

The institutional investor acquired the shares at a price of $0.63 each, coming to a total value of $113,989.38. Following this purchase, Glenbrook Capital Management holds 1,686,546 shares of the company, cutting its ownership changes upward by 12.04% overall.

Other Institutional Activity in SenesTech

Sabby Management, LLC reduced its holdings by 76,767 shares, ending with 141,756 shares worth about $99,229.0. Renaissance Technologies, LLC trimmed its stake by 31,384 shares, leaving it with 82,616 shares valued at roughly $57,831.0. Citadel Advisors Llc grew its holdings by 35,352 shares, ending with 46,671 shares worth about $32,669.0. Essex Investment Management Co LLC cut its stake by 92 shares, finishing with 26,203 shares valued at roughly $18,342.0. Diversify Wealth Management, LLC kept its holdings steady with no unit change, ending with 19,119 shares worth about $13,383.0.

SenesTech, Inc. Stock Up 8.2%

SenesTech recently traded around $0.70 per share as of October 19, 2026. That places the stock 27.3% above its 52-week low of $0.55 and 82.7% below its 52-week high of $4.04. The company has a market capitalization of roughly $3.80 million.

Recent Earnings

SenesTech generated $2.37 million in trailing twelve-month revenue, accompanied by an earnings per share loss of $1.22. The company posted a negative net margin of 294.7% and a return on equity of -107.4%. Its next earnings report is scheduled for November 9, 2026.

Insider Buying and Selling at SenesTech, Inc.

Chief Executive Officer Michael Edell made several stock purchases prior to the October trade. On August 14, 2026, Edell bought 1,000 shares at $1.21 each for a total of $1,210.0. Later on September 9, 2026, he acquired another 2,000 shares valued at $1,740.0. He followed up by buying 1,000 shares at $0.84 each on September 14, 2026, totaling $840.0, and picked up an additional 2,000 shares at $0.64 each on September 28, 2026, worth $1,289.0.

About SenesTech

SenesTech, Inc. is a specialty chemicals company based in Surprise, Arizona, that develops birth control solutions to manage animal pest populations. Its core offerings include ContraPest, a liquid bait designed to limit reproduction in rats, and Evolve, a soft bait utilizing cottonseed oil. The company focuses on non-lethal population management beginning with early breeding cycles.

Bottom Line

Investors are keeping an eye on the company's cash management and upcoming financial results ahead of the November 9 earnings release. Institutional filings and insider transactions continue to track how major stakeholders position themselves around the small-cap pest control specialist.