SEC Form 4
Aterian, Inc. (ATER) insider trading
No open-market ATER insider purchases or sales were filed in the 12 months to Oct 26, 2026.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $0
- 0 filings · 0 insiders
- Open-market purchases
- $0
- 0 filings
Who traded ATER, and when
ATER daily close from Oct 27, 2025 to Oct 26, 2026, between $0.36 and $1.39, last $0.66. No open-market insider purchases or sales were filed in this period.
No open-market insider purchases or sales were filed in the last 12 months.
Open-market trades
0 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| No open-market purchases or sales in the last 12 months. | ||||||
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
| No open-market purchases or sales in the last 12 months. | |||||||
GET /stocks/filings/vX/form-4?tickers=ATER&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"ATER"
],
"issuer_cik": "0001757715",
"owner_cik": "0001932843",
"accession_number": "0001829126-26-010590",
"form_type": "4",
"filing_date": "2026-09-29",
"period_of_report": "2026-09-24",
"issuer_name": "Aterian, Inc.",
"issuer_trading_symbol": "ATER",
"owner_name": "Lazar David E.",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": true,
"officer_title": "Chief Executive Officer",
"security_type": "derivative",
"record_type": "transaction",
"security_title": "Series AA Convertible Non-Redeemable Preferred Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-09-25",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 706100,
"transaction_price_per_share": 0.382,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 0,
"transaction_value": 269730.2,
"exercise_price": 0.2597,
"exercise_date": "2026-07-17",
"underlying_security_title": "Common Stock",
"underlying_security_shares": 5436970,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F3",
"description": "On September 25, 2026, the Reporting Person sold 706,100 Series AA Preferred Shares and 1,750,000 Series AAA Preferred Shares to multiple purchasers for an aggregate purchase price of $12,000,000, pursuant to a Securities Purchase Agreement. The aggregate purchase price was not allocated between the Series AA Preferred Shares and the Series AAA Preferred Shares in the Securities Purchase Agreement; the per-share prices reported reflect an allocation of the aggregate purchase price between the two series pro rata based on the number of shares of Common Stock underlying each series."
},
{
"id": "F2",
"description": "Each of the Series AA Preferred Shares and the Series AAA Convertible Non-Redeemable Preferred Stock (the \"Series AAA Preferred Shares\") are perpetual and therefore have no expiration date."
}
]
},
{
"tickers": [
"ATER"
],
"issuer_cik": "0001757715",
"owner_cik": "0001932843",
"accession_number": "0001829126-26-010590",
"form_type": "4",
"filing_date": "2026-09-29",
"period_of_report": "2026-09-24",
"issuer_name": "Aterian, Inc.",
"issuer_trading_symbol": "ATER",
"owner_name": "Lazar David E.",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": true,
"officer_title": "Chief Executive Officer",
"security_type": "derivative",
"record_type": "transaction",
"security_title": "Series AA Convertible Non-Redeemable Preferred Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-09-24",
"transaction_code": "C",
"equity_swap_involved": false,
"transaction_shares": 168900,
"transaction_price_per_share": 0,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 706100,
"transaction_value": 0,
"exercise_price": 0,
"exercise_date": "2026-07-17",
"underlying_security_title": "Common Stock",
"underlying_security_shares": 1300530,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "On September 25, 2026, the Reporting Person converted 168,900 shares of the Series AA Convertible Non-Redeemable Preferred Stock (the \"Series AA Preferred Shares\") for no additional consideration."
},
{
"id": "F2",
"description": "Each of the Series AA Preferred Shares and the Series AAA Convertible Non-Redeemable Preferred Stock (the \"Series AAA Preferred Shares\") are perpetual and therefore have no expiration date."
}
]
}
]
}
// 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.
Other insider activity (not market trades) · 10 records
- Grants and awards8 records
- Other2 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
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 Aterian, Inc.'s CEO sold stock?
No. David E. Lazar and Arturo Rodriguez (CEOs) made no open-market sales filed as CEO in the last 12 months.
How current is ATER’s insider data?
These are ATER 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.
Build with AI
Track ATER insider trades with your agent
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 ATER 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.
Nothing on this page is investment advice. All data and content is provided for informational purposes under our Terms of Service.