SenesTech (SNES) 10% Owner Management Buys $265K of Stock

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

Key Points

Glenbrook Capital Management bought 376,552 shares of SenesTech, Inc. for roughly $264,942 on October 19, 2026.
The purchase lifted the 10% owner's stake by 22.33% to 2,063,098 total shares.
SenesTech has its next earnings report scheduled for November 9, 2026.

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Ten-percent owner Glenbrook Capital Management purchased 376,552 shares of SenesTech, Inc. (SNES) on October 19, 2026. The transaction was revealed in a Form 4 filing with the U.S. Securities and Exchange Commission. The shares were acquired at a price of $0.70 each, bringing the total value of the purchase to about $264,942.

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

Following this open-market purchase, Glenbrook Capital Management holds 2,063,098 shares of SenesTech. This move represents a 22.33% increase in the firm's stock ownership. The transaction code listed for the trade was P, indicating an open-market purchase.

Other Institutional Activity in SenesTech

Other institutional investors have adjusted their positions in the company recently. Sabby Management, LLC reduced its holdings by 76,767 shares, ending with 141,756 shares valued at about $99,229. Renaissance Technologies, LLC trimmed its stake by 31,384 shares, leaving it with 82,616 shares worth approximately $57,831. Citadel Advisors Llc grew its holdings by 35,352 shares, ending with 46,671 shares worth about $32,669. Essex Investment Management Co LLC cut its position by 92 shares to finish with 26,203 shares valued at roughly $18,342. Diversify Wealth Management, LLC kept its holdings steady, holding 19,119 shares worth about $13,383.

SenesTech, Inc. Stock Up 8.2%

SenesTech recently traded around $0.70 per share as of October 19, 2026. The stock sits below its 50-day moving average of $0.94 and below its 200-day moving average of $1.55. Over the past year, the shares have traded between a low of $0.55 and a high of $4.04.

Recent Earnings

SenesTech reported trailing twelve-month revenue of $2.37 million. The company reported earnings of -$1.22 per share for the same period, alongside a net profit margin of -294.7% and a return on equity of -107.4%. The company's next earnings report is scheduled for November 9, 2026.

Insider Buying and Selling at SenesTech, Inc.

Chief Executive Officer Michael Edell made multiple purchases prior to this transaction. On August 14, 2026, he bought 1,000 shares at $1.21 per share for a total of $1,210. On September 9, 2026, he acquired 2,000 shares valued at $1,740. He added another 1,000 shares on September 14, 2026, at $0.84 per share totaling $840, and purchased 2,000 shares on September 28, 2026, at $0.64 per share for $1,289.

About SenesTech, Inc.

SenesTech, Inc. develops products for managing animal pest populations through fertility control. Its offerings include ContraPest, a liquid bait, and Evolve, a soft bait designed to limit reproduction in rats. The company operates within the specialty chemicals sector and is headquartered in Surprise, Arizona.

Bottom Line

Investors are keeping an eye on SenesTech as the company approaches its next earnings announcement on November 9, 2026. Ongoing SEC filings will show whether major stakeholders continue adjusting their positions.