SEC Form 4
Plug Power Inc. (PLUG) insider trading
In the 12 months to Oct 26, 2026, 2 PLUG insiders reported open-market sales of $913.3K across 7 filings; one officer (see filing) bought $87.3K.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $913.3K
- 7 filings · 2 insiders
- Open-market purchases
- $87.3K
- 1 filing · Jose Luis Crespo, Officer (see filing)
- Pre-arranged sales (10b5-1)
- 7 of 7
- All $913.3K sold was pre-arranged
Who traded PLUG, and when
- Purchase
- Sale
- Sale, pre-arranged (10b5-1)
PLUG daily close from Oct 27, 2025 to Oct 26, 2026, between $1.37 and $4.14, last $1.40. 7 sale and 1 purchase filings by 3 insiders, marked at their filing dates. Benjamin Haycraft, CSO & EVP of EMEA Region → CSO & GM EMEA: sold $751.7K across 6 filings, first filed Nov 12, 2025, last Oct 19, 2026. Maureen O. Helmer, Director: sold $161.6K across 1 filing, first filed Jun 10, 2026, last Jun 10, 2026. Jose Luis Crespo, Officer (see filing): bought $87.3K across 1 filing, first filed Dec 17, 2025, last Dec 17, 2025.
Largest mark · tap a row for others
Benjamin Haycraft · CSO & GM EMEA
Sale $428,300
200,000 shares at $2.14 avg
Filed Sep 22, 2026 · traded Sep 18
Pre-arranged (10b5-1) · close on filing date $2.11
Benjamin Haycraft · CSO & EVP of EMEA Region → CSO & GM EMEA
CSO & EVP of EMEA Region → CSO & GM EMEA
$751.7K soldMaureen O. Helmer · Director
Director
$161.6K soldJose Luis Crespo · Officer (see filing)
Officer (see filing)
$87.3K boughtOpen-market trades
8 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Benjamin Haycraft | CSO & EVP of EMEA Region → CSO & GM EMEA | $751.7K | — | 6 | 100% of sales | |
| Maureen O. Helmer | Director | $161.6K | — | 1 | 100% of sales | |
| Jose Luis Crespo | Officer (see filing) | — | $87.3K | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Benjamin Haycraft CSO & GM EMEA | SalePre-arranged (10b5-1) | 9,375 | $1.41 | $13.2K | 91,874 | |
traded | Benjamin Haycraft CSO & GM EMEA | SalePre-arranged (10b5-1) | 200,000 | $2.14 | $428.3K | 101,249 | |
traded | Benjamin Haycraft CSO & GM EMEA | SalePre-arranged (10b5-1) | 32,560 | $2.09 | $68.2K | 301,249 | |
traded | Maureen O. Helmer Director | SalePre-arranged (10b5-1) | 50,000 | $3.23 | $161.6K | 321,565 | |
traded | Benjamin Haycraft CSO & GM EMEA | SalePre-arranged (10b5-1) | 40,000 | $2.17 | $86.8K | 333,809 | |
traded | Jose Luis Crespo Officer (see filing) | PurchasePre-arranged (10b5-1) | 37,300 | $2.34 | $87.3K | 307,332 | |
traded | Benjamin Haycraft CSO & GM EMEA | SalePre-arranged (10b5-1) | 50,000 | $2.52 | $126.0K | 373,809 | |
traded | Benjamin Haycraft CSO & EVP of EMEA Region | SalePre-arranged (10b5-1) | 10,000 | $2.92 | $29.2K | 467,583 |
GET /stocks/filings/vX/form-4?tickers=PLUG&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"PLUG"
],
"issuer_cik": "0001093691",
"owner_cik": "0002085249",
"accession_number": "0001104659-26-116909",
"form_type": "4",
"filing_date": "2026-10-19",
"period_of_report": "2026-10-15",
"issuer_name": "PLUG POWER INC",
"issuer_trading_symbol": "PLUG",
"owner_name": "Haycraft Benjamin",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "CSO & GM EMEA",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-15",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 9375,
"transaction_price_per_share": 1.41,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 91874,
"transaction_value": 13218.75,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "These sales were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on June 11, 2026."
}
]
},
{
"tickers": [
"PLUG"
],
"issuer_cik": "0001093691",
"owner_cik": "0002085249",
"accession_number": "0001104659-26-109645",
"form_type": "4",
"filing_date": "2026-09-22",
"period_of_report": "2026-09-18",
"issuer_name": "PLUG POWER INC",
"issuer_trading_symbol": "PLUG",
"owner_name": "Haycraft Benjamin",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "CSO & GM EMEA",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-09-18",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 200000,
"transaction_price_per_share": 2.1415,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 101249,
"transaction_value": 428300.00000000006,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "These sales were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on June 11, 2026."
},
{
"id": "F2",
"description": "The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.135 to $2.148, 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 sold at each separate price within the range."
}
]
}
]
}
// 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) · 34 records
- Tax withholding2 records
- Grants and awards32 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.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Role
- The title on each filing. Someone whose title changed shows more than one.
- 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 Plug Power Inc.'s CEO sold stock?
No. Andrew Marsh (CEO) made no open-market sales filed as CEO in the last 12 months.
How current is PLUG’s insider data?
These are PLUG 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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Track PLUG 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 PLUG 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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