Comparable stake leader
Sean Goodrich
SEC ownership of Boost Run Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002090646.
Disclosed value leader
Sean Goodrich
Comparable rows
3/6
Latest evidence
12 May 2026
- Public ticker
- BRUN, BRUNW on Nasdaq
- Parsed ownership sources
-
13D/G and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Sean Goodrich
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
3 of 6
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Sean Goodrich
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
12 May 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0002090646
- Issuer location
- Northbrook, IL
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Boost Run Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Sean Goodrich
Disclosed value leader
Sean Goodrich
Comparable rows
3/6
Latest evidence
12 May 2026
13D/G
3/4/5
Lead comparable stake: 13%
3 rows are not safely comparable across share classes.
13D/G row: Sean Goodrich
Quick read
Sean Goodrich leads the comparable SEC ownership view at 13%.
3 of 6 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Sean Goodrich's linked filing trail.
Comparable ownership
Top 3
Sean Goodrich
13%
B. Luke Weil
12%
Jeremy Rayne Steinberg
0.08%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 6 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Sean Goodrich |
13D/G
3/4/5
Director
|
13%
|
$84,716,835
4,034,135 shares
|
$0 | 12 May 2026 |
| B. Luke Weil |
13D/G
3/4/5
Director, 10%+ Owner
|
12%
|
$82,026,483
3,906,023 shares
|
$0 | 12 May 2026 |
| Jeremy Rayne Steinberg |
3/4/5
Director
|
0.08%
|
$835,091
25,375 shares
|
— | 12 May 2026 |
| A23 Revocable Trust No.1, Dated January 26, 2026 |
3/4/5
10%+ Owner
|
—
class O/S missing
|
—
8,016,095 shares
|
— | 08 May 2026 |
| Harilaos Georgakopoulos |
3/4/5
Chief Operating Officer, Director, 10%+ Owner
|
—
class O/S missing
|
—
8,016,095 shares
|
— | 08 May 2026 |
| Ryan Matthew Burke |
3/4/5
Director
|
—
class O/S missing
|
—
792,500 shares
|
— | 08 May 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 29 Jun 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-9 of 9 reporting-owner rows connected to Boost Run Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
9
Largest Forms 3/4/5 holder
Sean Goodrich
Net 12M change
$0
Latest report
09 Jun 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Sean Goodrich | Director | $70,103,670 | Mixed | 09 Jun 2026 | ||
| Jeremy Rayne Steinberg | Director | $835,091 | Market | 12 May 2026 | ||
| Erik Guckel | Chief Financial Officer | Mixed | 08 May 2026 | |||
| Harilaos Georgakopoulos | Chief Operating Officer, Director, 10%+ Owner | Mixed | 08 May 2026 | |||
| Jeffrey Kleinops | Director | Mixed | 08 May 2026 | |||
| Andrew Karos | Chief Executive Officer, Director, 10%+ Owner | Mixed | 08 May 2026 | |||
| A23 Revocable Trust No.1, Dated January 26, 2026 | 10%+ Owner | Mixed | 08 May 2026 | |||
| B. Luke Weil | Director, 10%+ Owner | Mixed | 12 May 2026 | |||
| Ryan Matthew Burke | Director | Mixed | 08 May 2026 |
Recent insider transactions for Boost Run Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Sean Goodrich | BRUN | Class A Common Stock | Options Exercise | 61.6% | 1,272,885 | 3,338,270 | 09 Jun 2026 | By Goodrich ILMJS LLC | ||
| Sean Goodrich | BRUN | Warrants | Disposed to Issuer | -33.3% | -1,101,986 | 2,203,972 | 09 Jun 2026 | By Goodrich ILMJS LLC | ||
| Jeremy Rayne Steinberg | BRUN | Class A Common Stock | Options Exercise | 25,375 | 25,375 | 12 May 2026 | Direct | |||
| B. Luke Weil | BRUN | Class A Common Stock | Options Exercise | -27.5% | -1,272,885 | 3,355,789 | 12 May 2026 | By Willow Lane Sponsor, LLC | ||
| B. Luke Weil | BRUN | Warrants | Disposed to Issuer | -27.5% | -1,101,986 | 2,905,236 | 12 May 2026 | By Willow Lane Sponsor, LLC |
* marks a reported price that did not pass the local price check.