BRUN · Insider Trading

Boost Run Inc. Class A Common Stock

Every open-market purchase and sale reported by BRUN officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
5
most recent
Open-Market Buys
0
code P
Sales
1
code S
Reporting Insiders
1
current holders
BRUN — Recent Form 4 Transactions (latest 2026-10-01)
FiledInsiderRole TypeSharesValue
2026-10-01 Harilaos Georgakopoulos Chief Operating Officer A +300,000 deriv. —
2026-10-01 Erik Guckel Chief Financial Officer A +2,890,000 deriv. —
2026-09-16 Sean Goodrich Director Sell −500,000 −$7.00M
2026-08-28 Sean Goodrich Director M +1,968,750 +$3.45M
2026-08-28 Sean Goodrich Director MIXED +903,786 +$8.68M
BRUN — Current Insider Holders
InsiderRole Shares HeldValue
Sean Goodrich Director 4,437,921 $33.20M
BRUN Insider Trading FAQ
Who are the insiders at BRUN?
1 officers, directors and 10%+ beneficial owners currently report holdings in BRUN via SEC Form 4.
Are BRUN insiders buying or selling?
Across the 5 most recent Form 4 filings for BRUN, 0 were open-market purchases (code P) and 1 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is BRUN insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent BRUN filing is dated 2026-10-01.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the BRUN quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.