SEC Form 4
Lexeo Therapeutics, Inc. (LXEO) insider trading
In the 12 months to Oct 26, 2026, one LXEO insider reported open-market sales of $313.1K across 1 filing; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $313.1K
- 1 filing · 1 insider
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 1 of 1
- All $313.1K sold was pre-arranged
Who traded LXEO, and when
- Sale
- Sale, pre-arranged (10b5-1)
LXEO daily close from Oct 27, 2025 to Oct 26, 2026, between $2.63 and $10.63, last $2.72. 1 sale and 0 purchase filings by 1 insider, marked at their filing dates. Richard Nolan Townsend, Chief Executive Officer: sold $313.1K across 1 filing, first filed Apr 7, 2026, last Apr 7, 2026.
Largest mark · tap a row for others
Richard Nolan Townsend · Chief Executive Officer
Sale $313,137
55,000 shares at $5.69 avg
Filed Apr 7, 2026 · traded Apr 6
Pre-arranged (10b5-1) · close on filing date $6.31
Richard Nolan Townsend · Chief Executive Officer
Chief Executive Officer
$313.1K soldOpen-market trades
1 filing in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Richard Nolan Townsend | Chief Executive Officer | $313.1K | — | 1 | 100% of sales |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Richard Nolan Townsend Chief Executive Officer | SalePre-arranged (10b5-1) | 55,000 | $5.69 | $313.1K | 340,106 |
GET /stocks/filings/vX/form-4?tickers=LXEO&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"LXEO"
],
"issuer_cik": "0001907108",
"owner_cik": "0001995218",
"accession_number": "0001995218-26-000009",
"form_type": "4",
"filing_date": "2026-04-07",
"period_of_report": "2026-04-06",
"issuer_name": "Lexeo Therapeutics, Inc.",
"issuer_trading_symbol": "LXEO",
"owner_name": "Townsend Richard Nolan",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chief Executive Officer",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-04-06",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 55000,
"transaction_price_per_share": 5.6934,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 340106,
"transaction_value": 313137,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The sales in this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 13, 2025."
},
{
"id": "F2",
"description": "This transaction was executed in multiple trades at prices ranging from $5.56 to $5.94. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price."
},
{
"id": "F3",
"description": "Includes 261,349 Restricted Stock Units (RSU's). Each RSU represents a contingent right to receive one share of Common Stock, subject to the applicable vesting schedule and conditions of each RSU."
}
]
}
]
}
// trimmed to 1 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) · 30 records
- Tax withholding (sold to cover)17 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.
- 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.
- 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 Lexeo Therapeutics, Inc.'s CEO sold stock?
Yes. Richard Nolan Townsend (CEO) sold 55,000 shares ($313.1K) in Apr 2026, all under a pre-arranged 10b5-1 plan.
How current is LXEO’s insider data?
These are LXEO 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 LXEO 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 LXEO 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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