SEC Form 4
Lithium Americas Corp. (LAC) insider trading
In the 12 months to Oct 26, 2026, 4 LAC insiders reported open-market sales of $126.8K across 5 filings; one director bought $3.8K.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $126.8K
- 5 filings · 4 insiders
- Open-market purchases
- $3.8K
- 1 filing · Michael John Brown, Director
Who traded LAC, and when
- Purchase
- Sale
LAC daily close from Oct 27, 2025 to Oct 26, 2026, between $2.02 and $6.44, last $2.02. 5 sale and 1 purchase filings by 5 insiders, marked at their filing dates. Edward Grandy, Sr VP, GC & Secretary: sold $56.4K across 2 filings, first filed Nov 18, 2025, last Apr 14, 2026. Richard Gerspacher, EVP, Capital Projects: sold $27.5K across 1 filing, first filed Nov 18, 2025, last Nov 18, 2025. Aubree Barnum, VP, Human Resources: sold $21.4K across 1 filing, first filed Nov 18, 2025, last Nov 18, 2025. Timothy Ambrose Crowley, VP, Gov & External Affairs: sold $21.4K across 1 filing, first filed Nov 18, 2025, last Nov 18, 2025. Michael John Brown, Director: bought $3.8K across 1 filing, first filed Mar 23, 2026, last Mar 23, 2026.
Largest mark · tap a row for others
Edward Grandy · Sr VP, GC & Secretary
Sale $28,539
6,342 shares at $4.50 avg
Filed Apr 14, 2026 · traded Nov 17
Close on filing date $4.41
Edward Grandy · Sr VP, GC & Secretary
Sr VP, GC & Secretary
$56.4K soldRichard Gerspacher · EVP, Capital Projects
EVP, Capital Projects
$27.5K soldAubree Barnum · VP, Human Resources
VP, Human Resources
$21.4K soldTimothy Ambrose Crowley · VP, Gov & External Affairs
VP, Gov & External Affairs
$21.4K soldMichael John Brown · Director
Director
$3.8K boughtOpen-market trades
6 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Edward Grandy | Sr VP, GC & Secretary | $56.4K | — | 2 | — | |
| Richard Gerspacher | EVP, Capital Projects | $27.5K | — | 1 | — | |
| Aubree Barnum | VP, Human Resources | $21.4K | — | 1 | — | |
| Timothy Ambrose Crowley | VP, Gov & External Affairs | $21.4K | — | 1 | — | |
| Michael John Brown | Director | — | $3.8K | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Edward Grandy Sr VP, GC & Secretary | Sale | 6,342 | $4.50 | $28.5K | 135,306 | |
traded | Michael John Brown Director | Purchase | 1,000 | $3.78 | $3.8K | 7,201 | |
traded | Edward Grandy Sr VP, GC & Secretary | Sale | 6,183 | $4.50 | $27.8K | 135,466 | |
traded | Timothy Ambrose Crowley VP, Gov & External Affairs | Sale | 4,763 | $4.50 | $21.4K | 132,714 | |
traded | Richard Gerspacher EVP, Capital Projects | Sale | 6,118 | $4.50 | $27.5K | 145,641 | |
traded | Aubree Barnum VP, Human Resources | Sale | 4,763 | $4.50 | $21.4K | 66,373 |
GET /stocks/filings/vX/form-4?tickers=LAC&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"LAC"
],
"issuer_cik": "0001966983",
"owner_cik": "0002045063",
"accession_number": "0000912282-26-000599",
"form_type": "4/A",
"filing_date": "2026-04-14",
"period_of_report": "2025-11-17",
"issuer_name": "LITHIUM AMERICAS CORP.",
"issuer_trading_symbol": "LAC",
"owner_name": "GRANDY EDWARD",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Sr VP, GC & Secretary",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Shares",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2025-11-17",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 6342,
"transaction_price_per_share": 4.5,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 135306,
"transaction_value": 28539,
"date_of_original_submission": "2025-11-18",
"direct_or_indirect": "D",
"remarks": "CORRECTS ERROR IN NUMBER OF SHARES SOLD FROM 6,183 TO 6,342 ON FORM 4 FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 18, 2025. ALSO CORRECTS A ONE (1) SHARE DISCREPANCY IN THE NUMBER OF SHARES REPORTED AS SOLD FROM 23 TO 24 ON FORM 4 FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON APRIL 21, 2025."
},
{
"tickers": [
"LAC"
],
"issuer_cik": "0001966983",
"owner_cik": "0002045597",
"accession_number": "0000912282-26-000476",
"form_type": "4",
"filing_date": "2026-03-23",
"period_of_report": "2026-03-20",
"issuer_name": "LITHIUM AMERICAS CORP.",
"issuer_trading_symbol": "LAC",
"owner_name": "BROWN MICHAEL JOHN",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Shares",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-03-20",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 1000,
"transaction_price_per_share": 3.7801,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 7201,
"transaction_value": 3780.1,
"direct_or_indirect": "D"
}
]
}
// 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) · 56 records
- Option exercises22 records
- Tax withholding21 records
- Grants and awards13 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.
- Counted once
- When several owners (a fund and its partners, say) report the same trade, it's counted once. Corrected filings replace the originals.
Frequently asked questions
Has Lithium Americas Corp.'s CEO sold stock?
No. Jonathan David Evans (CEO) made no open-market sales filed as CEO in the last 12 months.
How current is LAC’s insider data?
These are LAC 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 LAC 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 LAC 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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