SEC Form 4
Boost Run Inc. (BRUN) insider trading
In the 12 months to Oct 26, 2026, one BRUN insider reported open-market sales of $11.0M across 2 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $11.0M
- 2 filings · 1 insider
- Open-market purchases
- $0
- 0 filings
Who traded BRUN, and when
- Sale
BRUN daily close from May 11, 2026 to Oct 26, 2026, between $7.23 and $39.20, last $7.63. 2 sale and 0 purchase filings by 1 insider, marked at their filing dates. Sean Goodrich, Director: sold $11.0M across 2 filings, first filed Aug 28, 2026, last Sep 16, 2026.
Largest mark · tap a row for others
Sean Goodrich · Director
Sale $7,000,000
500,000 shares at $14.00 avg
Filed Sep 16, 2026 · traded Sep 14
Close on filing date $15.16
Sean Goodrich · Director
Director
$11.0M soldOpen-market trades
2 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Sean Goodrich | Director | $11.0M | — | 2 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Sean Goodrich Director | Sale | 500,000 | $14.00 | $7.0M | 4,437,921 | |
traded | Sean Goodrich Director | Sale | 198,200 | $20.15 | $4.0M | 4,937,921 |
GET /stocks/filings/vX/form-4?tickers=BRUN&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"BRUN"
],
"issuer_cik": "0002090646",
"owner_cik": "0002028811",
"accession_number": "0001493152-26-042924",
"form_type": "4",
"filing_date": "2026-09-16",
"period_of_report": "2026-09-14",
"issuer_name": "Boost Run Inc.",
"issuer_trading_symbol": "BRUN",
"owner_name": "Goodrich Sean",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Class A Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-09-14",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 500000,
"transaction_price_per_share": 14,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 4437921,
"transaction_value": 7000000,
"not_subject_to_section_16": false,
"direct_or_indirect": "I",
"nature_of_ownership": "By Goodrich ILJMS LLC",
"footnotes": [
{
"id": "F1",
"description": "Goodrich ILMJS LLC is the record hold of such securities. Mr. Goodrich is the managing member of Goodrich ILMJS LLC and holds and holds voting and investment discretion with respect to the shares of Boost Run Inc. Class A Common Stock held of record by Goodrich ILMJS LLC. Mr. Goodrich disclaims any beneficial ownership of the securities held by Goodrich ILMJS LLC other than to the extent of any pecuniary interest he may have therein, directly or indirectly."
}
]
},
{
"tickers": [
"BRUN"
],
"issuer_cik": "0002090646",
"owner_cik": "0002028811",
"accession_number": "0001493152-26-040610",
"form_type": "4",
"filing_date": "2026-08-28",
"period_of_report": "2026-08-19",
"issuer_name": "Boost Run Inc.",
"issuer_trading_symbol": "BRUN",
"owner_name": "Goodrich Sean",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Class A Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-27",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 198200,
"transaction_price_per_share": 20.15,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 4937921,
"transaction_value": 3993729.9999999995,
"not_subject_to_section_16": false,
"direct_or_indirect": "I",
"nature_of_ownership": "By Goodrich ILJMS LLC",
"footnotes": [
{
"id": "F1",
"description": "Goodrich ILMJS LLC is the record hold of such securities. Mr. Goodrich is the managing member of Goodrich ILMJS LLC and holds and holds voting and investment discretion with respect to the shares of Boost Run Inc. Class A Common Stock held of record by Goodrich ILMJS LLC. Mr. Goodrich disclaims any beneficial ownership of the securities held by Goodrich ILMJS LLC other than to the extent of any pecuniary interest he may have therein, directly or indirectly."
}
]
}
]
}
// 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) · 4 records
- Option exercises4 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
How current is BRUN’s insider data?
These are BRUN 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 BRUN 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 BRUN 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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