SEC Form 4
SenesTech, Inc. (SNES) insider trading
In the 12 months to Oct 26, 2026, 2 SNES insiders reported open-market sales of $171 across 2 filings; 2 insiders bought $1.8M.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $171
- 2 filings · 2 insiders
- Open-market purchases
- $1.8M
- 22 filings
Who traded SNES, and when
- Purchase
- Sale
SNES daily close from Oct 27, 2025 to Oct 26, 2026, between $0.63 and $3.69, last $0.79. 2 sale and 22 purchase filings by 4 insiders, marked at their filing dates. GLENBROOK CAPITAL MANAGEMENT, 10% owner: bought $1.8M across 15 filings, first filed Feb 3, 2026, last Oct 22, 2026. Michael Edell, Chief Executive Officer: bought $13.1K across 7 filings, first filed May 18, 2026, last Sep 29, 2026. Jacob Steven Leach, Director: sold $168 across 1 filing, first filed Nov 19, 2025, last Nov 19, 2025. Matthew K. Szot, Director: sold $3 across 1 filing, first filed Nov 17, 2025, last Nov 17, 2025.
Largest mark · tap a row for others
GLENBROOK CAPITAL MANAGEMENT · 10% owner
Filing 1 of 2 within a week · $780,895 total
Purchase $706,057
983,804 shares at $0.72 avg
Filed Oct 19, 2026 · traded Oct 15
Close on filing date $0.70
GLENBROOK CAPITAL MANAGEMENT · 10% owner
10% owner
$1.8M boughtMichael Edell · Chief Executive Officer
Chief Executive Officer
$13.1K boughtJacob Steven Leach · Director
Director
$168 soldMatthew K. Szot · Director
Director
$3 soldOpen-market trades
24 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| GLENBROOK CAPITAL MANAGEMENT | 10% owner | — | $1.8M | 15 | — | |
| Michael Edell | Chief Executive Officer | — | $13.1K | 7 | — | |
| Jacob Steven Leach | Director | $168 | — | 1 | — | |
| Matthew K. Szot | Director | $3 | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | GLENBROOK CAPITAL MANAGEMENT 10% owner | Purchase | 103,875 | $0.72 | $74.8K | 2,166,973 | |
traded | GLENBROOK CAPITAL MANAGEMENT 10% owner | Purchase | 983,804 | $0.72 | $706.1K | 2,063,098 | |
traded | Michael Edell Chief Executive Officer | Purchase | 2,000 | $0.64 | $1.3K | 11,000 | |
traded | Michael Edell Chief Executive Officer | Purchase | 1,000 | $0.84 | $840 | 9,000 | |
traded | Michael Edell Chief Executive Officer | Purchase | 2,000 | $0.87 | $1.7K | 7,000 | |
traded | Michael Edell Chief Executive Officer | Purchase | 1,000 | $1.21 | $1.2K | 6,000 | |
traded | GLENBROOK CAPITAL MANAGEMENT 10% owner | Purchase | 21,490 | $1.30 | $27.9K | 1,079,294 | |
traded | GLENBROOK CAPITAL MANAGEMENT 10% owner | Purchase | 35,000 | $1.47 | $51.6K | 1,057,824 | |
traded | Michael Edell Chief Executive Officer | Purchase | 1,000 | $1.43 | $1.4K | 5,000 | |
traded | GLENBROOK CAPITAL MANAGEMENT 10% owner | Purchase | 35,000 | $1.51 | $52.7K | 1,022,824 | |
traded | GLENBROOK CAPITAL MANAGEMENT 10% owner | Purchase | 25,416 | $1.54 | $39.1K | 987,824 | |
traded | GLENBROOK CAPITAL MANAGEMENT 10% owner | Purchase | 8,264 | $1.64 | $13.6K | 962,408 | |
traded | Michael Edell Chief Executive Officer | Purchase | 1,000 | $1.55 | $1.6K | 4,000 | |
traded | GLENBROOK CAPITAL MANAGEMENT 10% owner | Purchase | 28,389 | $1.60 | $45.5K | 954,144 | |
traded | GLENBROOK CAPITAL MANAGEMENT 10% owner | Purchase | 32,120 | $1.67 | $53.5K | 925,755 | |
traded | Michael Edell Chief Executive Officer | Purchase | 3,000 | $1.67 | $5.0K | 3,000 | |
traded | GLENBROOK CAPITAL MANAGEMENT 10% owner | Purchase | 3,000 | $1.47 | $4.4K | 893,635 | |
traded | GLENBROOK CAPITAL MANAGEMENT 10% owner | Purchase | 171,034 | $1.93 | $330.2K | 890,635 | |
traded | GLENBROOK CAPITAL MANAGEMENT 10% owner | Purchase | 85,901 | $2.34 | $200.6K | 704,211 | |
traded | GLENBROOK CAPITAL MANAGEMENT 10% owner | Purchase | 31,346 | $1.81 | $56.7K | 633,700 | |
traded | GLENBROOK CAPITAL MANAGEMENT 10% owner | Purchase | 8,569 | $1.81 | $15.5K | 602,354 | |
traded | GLENBROOK CAPITAL MANAGEMENT 10% owner | Purchase | 48,138 | $1.96 | $94.5K | 593,785 | |
traded | Jacob Steven Leach Director | Sale | 62 | $2.71 | $168 | 0 | |
traded | Matthew K. Szot Director | Sale | 1 | $2.75 | $3 | 0 |
GET /stocks/filings/vX/form-4?tickers=SNES&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"SNES"
],
"issuer_cik": "0001680378",
"owner_cik": "0001273782",
"accession_number": "0000902664-26-004257",
"form_type": "4",
"filing_date": "2026-10-22",
"period_of_report": "2026-10-20",
"issuer_name": "SenesTech, Inc.",
"issuer_trading_symbol": "SNES",
"owner_name": "GLENBROOK CAPITAL MANAGEMENT",
"is_director": false,
"is_officer": false,
"is_ten_percent_owner": true,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock, $0.001 par value per share (\"Common Stock\")",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-10-20",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 36375,
"transaction_price_per_share": 0.6746,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 2099473,
"transaction_value": 24538.575,
"not_subject_to_section_16": false,
"direct_or_indirect": "I",
"nature_of_ownership": "See footnote",
"footnotes": [
{
"id": "F1",
"description": "The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $0.6613 to $0.6933, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth herein."
},
{
"id": "F2",
"description": "The securities to which this filing relates are held directly by certain accounts for which Glenbrook Capital Management (the \"Reporting Person\") serves as the investment manager. The Reporting Person disclaims beneficial ownership of the securities to which this filing relates for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."
}
]
},
{
"tickers": [
"SNES"
],
"issuer_cik": "0001680378",
"owner_cik": "0001273782",
"accession_number": "0000902664-26-004257",
"form_type": "4",
"filing_date": "2026-10-22",
"period_of_report": "2026-10-20",
"issuer_name": "SenesTech, Inc.",
"issuer_trading_symbol": "SNES",
"owner_name": "GLENBROOK CAPITAL MANAGEMENT",
"is_director": false,
"is_officer": false,
"is_ten_percent_owner": true,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-10-22",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 7500,
"transaction_price_per_share": 0.7986,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 2166973,
"transaction_value": 5989.5,
"not_subject_to_section_16": false,
"direct_or_indirect": "I",
"nature_of_ownership": "See footnote",
"footnotes": [
{
"id": "F4",
"description": "The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $0.7877 to $0.8095, Inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth herein."
},
{
"id": "F2",
"description": "The securities to which this filing relates are held directly by certain accounts for which Glenbrook Capital Management (the \"Reporting Person\") serves as the investment manager. The Reporting Person disclaims beneficial ownership of the securities to which this filing relates for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
Frequently asked questions
Has SenesTech, Inc.'s CEO sold stock?
No. Michael Edell (CEO) made no open-market sales filed as CEO in the last 12 months.
How current is SNES’s insider data?
These are SNES Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
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This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for SNES every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
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