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Making an investment decision in the stock market involves a certain amount of risk, so it's important to thoroughly review a company's stock before making any decisions. Stock float, number of short positions and outstanding shares are among the many factors an investor should take into account.
Investors cannot turn a blind eye to insiders as well as institutional ownership. They need to follow insider trades to determine the direction the stock is likely to take.
About 10.62% of SNES shares are held by financial institutions. is the top corporate investor, holding 124 shares valued at $43.00. A 0% stake in SenesTech, Inc. is owned by the company. TOWER RESEARCH CAPITAL LLC (TRC) owns 16.65K shares valued at $6.00K, which translates its holding of 0.14% of the stake in the company.
| Date | Holder | % Stake | Shares Held | Total Value ($) | Shares | % Change in Portfolio |
|---|---|---|---|---|---|---|
| Sep 30, 2022 | 0% | 124 | 43 | 0 | 0 | |
| Sep 30, 2022 | TOWER RESEARCH CAPITAL LLC (TRC) | 0.14% | 16.65K | 6K | 4.2K | +33.71% |
| Sep 30, 2022 | GEODE CAPITAL MANAGEMENT, LLC | 0.99% | 120.74K | 42K | 0 | 0 |
| Sep 30, 2022 | FIRST WILSHIRE SECURITIES MANAGEMENT INC | 4.75% | 580K | 203K | 0 | 0 |
| Sep 30, 2022 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.37% | 45.34K | 16K | 45.34K | +100.00% |
| Sep 30, 2022 | MONETA GROUP INVESTMENT ADVISORS LLC | 0.16% | 19.97K | 7K | -4.68K | -18.98% |
| Sep 30, 2022 | GREENHAVEN ROAD INVESTMENT MANAGEMENT, L.P. | 0.09% | 10.49K | 4K | 0 | 0 |
| Sep 30, 2022 | UBS GROUP AG | 0.03% | 3.8K | 1K | 3.8K | +100.00% |
| Sep 30, 2022 | ADVISOR GROUP HOLDINGS, INC. | 0.02% | 3K | 1K | 0 | 0 |
| Sep 30, 2022 | TCI WEALTH ADVISORS, INC. | 0.02% | 2.6K | 1K | -800 | -23.52% |
| Sep 30, 2022 | FINANCIAL PERSPECTIVES, INC | 0% | 124 | 43 | 0 | 0 |
| Sep 30, 2022 | WELLS FARGO & COMPANY/MN | 0% | 114 | - | -1 | -0.87% |
| Sep 30, 2022 | NEW MILLENNIUM GROUP LLC | 0% | 13 | - | -1 | -7.14% |
| Sep 30, 2022 | MORGAN STANLEY | 0% | 12 | - | 0 | 0 |
| Sep 30, 2022 | BANK OF AMERICA CORP /DE/ | 0% | 5 | - | 0 | 0 |
| Sep 30, 2022 | CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0% | 0 | - | 0 | 0 |
| Sep 30, 2022 | TWO SIGMA SECURITIES, LLC | 0% | 0 | - | -12.55K | -100.00% |
| Sep 30, 2022 | TWO SIGMA ADVISERS, LP | 0% | 0 | - | -11.9K | -100.00% |
| Sep 30, 2022 | CAPTRUST FINANCIAL ADVISORS | 0% | 0 | - | -941 | -100.00% |
| Sep 30, 2022 | RENAISSANCE TECHNOLOGIES LLC | 0.25% | 30.98K | 11K | 0 | 0 |
| Sep 30, 2022 | BANK OF NEW YORK MELLON CORP | 0.23% | 28.44K | 10K | 0 | 0 |
| Sep 30, 2022 | STATE STREET CORP | 0.21% | 25.56K | 9K | 0 | 0 |
| Sep 30, 2022 | VIRTU FINANCIAL LLC | 0.19% | 22.68K | 8K | -561 | -2.41% |
| Sep 30, 2022 | CWM, LLC | 0% | 500 | - | 0 | 0 |
Among the SNES insiders holding of 4.21% of the stake in company, GLENBROOK CAPITAL MANAGEMENT, 10 percent owner, holds the largest shares of 704.21K. SIEGEL KENNETH S, CEO, is the second largest SNES insider with ownership of 702.56K shares. DYER CHERYL ANN, Pres. & Chief Research Officer, stands third with possession of 370.09K shares of that stake.
| Insiders | Designation | Shares Held |
|---|---|---|
| GLENBROOK CAPITAL MANAGEMENT | 10 percent owner | 704.21K |
| SIEGEL KENNETH S | CEO | 702.56K |
| DYER CHERYL ANN | Pres. & Chief Research Officer | 370.09K |
| MAYER LORETTA POWERS | Chief Scientific Officer | 335.17K |
| WICKERSHAM GROVER T. | director | 248.6K |
| RAMSEY ROBERT E JR | director | 27K |
| ALTMAN ANDREW | Chief Operating Officer | 20K |
| CHESTERMAN THOMAS C | CFO and Treasurer | 9.88K |
| WICKERSHAM GROVER T | director | 7K |
| WILLIAMS JULIA ANN | director | 5K |
| LEACH JACOB STEVEN | director | 0 |
| SZOT MATTHEW K | director | 0 |
| Date | Insider | Type | Cost | Shares | Value ($) | Shares Total |
|---|---|---|---|---|---|---|
| Feb 19, 2026 | GLENBROOK CAPITAL MANAGEMENT | PURCHASE | 2.40 | 34.61K | 83.14K | 704.21K |
| Feb 18, 2026 | GLENBROOK CAPITAL MANAGEMENT | PURCHASE | 2.29 | 10.48K | 24K | 669.6K |
| Feb 17, 2026 | GLENBROOK CAPITAL MANAGEMENT | PURCHASE | 2.29 | 40.81K | 93.49K | 659.12K |
| Feb 13, 2026 | GLENBROOK CAPITAL MANAGEMENT | PURCHASE | 1.89 | 15.39K | 29.11K | 633.7K |
| Feb 12, 2026 | GLENBROOK CAPITAL MANAGEMENT | PURCHASE | 1.72 | 7.96K | 13.69K | 618.31K |
| Feb 11, 2026 | GLENBROOK CAPITAL MANAGEMENT | PURCHASE | 1.73 | 8K | 13.87K | 610.35K |
| Feb 05, 2026 | GLENBROOK CAPITAL MANAGEMENT | PURCHASE | 1.77 | 2.88K | 5.11K | 602.35K |
| Feb 04, 2026 | GLENBROOK CAPITAL MANAGEMENT | PURCHASE | 1.82 | 5.69K | 10.37K | 599.47K |
| Feb 02, 2026 | GLENBROOK CAPITAL MANAGEMENT | PURCHASE | 1.98 | 42.74K | 84.42K | 593.79K |
| Jan 30, 2026 | GLENBROOK CAPITAL MANAGEMENT | PURCHASE | 1.87 | 5.4K | 10.11K | 551.05K |
| Nov 18, 2025 | LEACH JACOB STEVEN | SALE | 2.71 | 62 | 168.02 | 0 |
| Nov 14, 2025 | SZOT MATTHEW K | SALE | 2.75 | 1 | 2.75 | 0 |
| Aug 18, 2021 | LEACH JACOB STEVEN | PURCHASE | 1.54 | 50K | 77.1K | 150K |
| Aug 17, 2021 | LEACH JACOB STEVEN | PURCHASE | 1.50 | 50K | 74.79K | 100K |
| Aug 16, 2021 | LEACH JACOB STEVEN | PURCHASE | 1.54 | 50K | 76.89K | 50K |
| Oct 21, 2019 | MAYER LORETTA POWERS | SALE | 0.83 | 6K | 4.98K | 335.17K |
| Oct 02, 2019 | DYER CHERYL ANN | SALE | 0.93 | 6K | 5.57K | 370.09K |
| Aug 15, 2019 | DYER CHERYL ANN | SALE | 1.21 | 20K | 24.1K | 376.09K |
| Aug 15, 2019 | MAYER LORETTA POWERS | SALE | 1.19 | 20K | 23.73K | 371.17K |
| Aug 14, 2019 | DYER CHERYL ANN | SALE | 1.18 | 20K | 23.62K | 396.09K |
| Aug 14, 2019 | MAYER LORETTA POWERS | SALE | 1.24 | 20K | 24.76K | 391.17K |
| Jul 16, 2019 | SIEGEL KENNETH S | PURCHASE | 1.35 | 696.3K | 940K | 702.56K |
| Aug 13, 2018 | WILLIAMS JULIA ANN | PURCHASE | 1.15 | 1K | 1.15K | 5K |
| Jun 21, 2018 | MAYER LORETTA POWERS | SALE | 2.13 | 6K | 12.78K | 405.97K |
| Dec 21, 2017 | MAYER LORETTA POWERS | SALE | 0.67 | 6K | 4.03K | 386.98K |
| Dec 04, 2017 | DYER CHERYL ANN | SALE | 0.82 | 6K | 4.92K | 387.2K |
| Nov 24, 2017 | WILLIAMS JULIA ANN | PURCHASE | 0.90 | 1.7K | 1.53K | 23.75K |
| Nov 21, 2017 | MAYER LORETTA POWERS | SALE | 0.89 | 6K | 5.36K | 397.98K |
| Nov 02, 2017 | DYER CHERYL ANN | SALE | 2.72 | 6K | 16.34K | 393.2K |
| Oct 20, 2017 | MAYER LORETTA POWERS | SALE | 1.52 | 6K | 9.13K | 403.98K |
| Oct 03, 2017 | DYER CHERYL ANN | SALE | 1.97 | 6K | 11.81K | 439.2K |
| Sep 22, 2017 | MAYER LORETTA POWERS | SALE | 1.79 | 6K | 10.74K | 396.66K |
| Sep 05, 2017 | DYER CHERYL ANN | SALE | 2.31 | 6K | 13.83K | 430.21K |
| Aug 21, 2017 | MAYER LORETTA POWERS | SALE | 2.37 | 6K | 14.22K | 402.66K |
| Aug 18, 2017 | ALTMAN ANDREW | PURCHASE | 2.46 | 2.03K | 4.99K | 20K |
| Aug 17, 2017 | ALTMAN ANDREW | PURCHASE | 2.81 | 14.37K | 40.33K | 17.97K |
| Aug 17, 2017 | WILLIAMS JULIA ANN | PURCHASE | 2.80 | 9K | 25.2K | 21.05K |
| Aug 16, 2017 | ALTMAN ANDREW | PURCHASE | 2.79 | 2.6K | 7.25K | 2.6K |
| Aug 16, 2017 | WILLIAMS JULIA ANN | PURCHASE | 2.75 | 100 | 275 | 12.05K |
| Jul 26, 2017 | WILLIAMS JULIA ANN | PURCHASE | 3.21 | 10K | 32.1K | 11.95K |
| Jul 26, 2017 | WICKERSHAM GROVER T. | PURCHASE | 3.04 | 10K | 30.44K | 248.6K |
| Jul 25, 2017 | WICKERSHAM GROVER T. | PURCHASE | 2.81 | 2.5K | 7.03K | 53.5K |
| Jul 17, 2017 | CHESTERMAN THOMAS C | SALE | 5.15 | 393 | 2.02K | 9.88K |
| Jun 12, 2017 | CHESTERMAN THOMAS C | SALE | 5.85 | 1K | 5.85K | 11.29K |
| Jun 09, 2017 | CHESTERMAN THOMAS C | SALE | 5.85 | 4K | 23.4K | 12.29K |
| Jun 08, 2017 | CHESTERMAN THOMAS C | SALE | 5.57 | 5K | 27.87K | 16.29K |
| Jan 27, 2017 | WILLIAMS JULIA ANN | PURCHASE | 7.94 | 1.95K | 15.48K | 1.95K |
| Jan 27, 2017 | WICKERSHAM GROVER T. | PURCHASE | 7.45 | 1.6K | 11.91K | 226.1K |
| Jan 27, 2017 | RAMSEY ROBERT E JR | PURCHASE | 7.46 | 7K | 52.19K | 27K |
| Jan 24, 2017 | WICKERSHAM GROVER T. | PURCHASE | 7.42 | 1K | 7.42K | 51K |
| Dec 13, 2016 | WICKERSHAM GROVER T | PURCHASE | 8.00 | 5K | 40K | 7K |
| Dec 13, 2016 | WILLIAMS JULIA ANN | PURCHASE | 8.39 | 1K | 8.39K | 1K |