Who owns Boost Run Inc. Class A Common Stock?
Institutional ownership of BRUN from SEC Form 13F filings across 48 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
48
13F holders
$324.2M
value, 2026 filers
10.3%
of shares outstanding (8.4M sh)
48
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of BRUN's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | FMR LLCNEW | 1.8M | $69.2M | 0.0% | 2.2% | new |
| 2 | CITADEL ADVISORS LLCNEW | 1.3M | $51.3M | 0.0% | 1.6% | new |
| 3 | D. E. Shaw & Co., Inc.NEW | 1.3M | $48.5M | 0.0% | 1.5% | new |
| 4 | UBS Group AGNEW | 860,043 | $33.4M | 0.0% | 1.1% | new |
| 5 | WELLINGTON MANAGEMENT GROUP LLPNEW | 619,239 | $24.0M | 0.0% | 0.8% | new |
| 6 | MORGAN STANLEYNEW | 490,680 | $19.0M | 0.0% | 0.6% | new |
| 7 | Magnetar Financial LLCNEW | 291,975 | $11.3M | 0.1% | 0.4% | new |
| 8 | BlackRock, Inc.NEW | 273,575 | $10.6M | 0.0% | 0.3% | new |
| 9 | GEODE CAPITAL MANAGEMENT, LLCNEW | 157,105 | $6.1M | 0.0% | 0.2% | new |
| 10 | VANGUARD CAPITAL MANAGEMENT LLCNEW | 150,150 | $5.8M | 0.0% | 0.2% | new |
| 11 | SUSQUEHANNA INTERNATIONAL GROUP, LLPNEW | 113,368 | $4.4M | 0.0% | 0.1% | new |
| 12 | MILLENNIUM MANAGEMENT LLCNEW | 110,357 | $4.3M | 0.0% | 0.1% | new |
| 13 | JANE STREET GROUP, LLCNEW | 83,488 | $3.2M | 0.0% | 0.1% | new |
| 14 | BARCLAYS PLCNEW | 82,512 | $3.2M | 0.0% | 0.1% | new |
| 15 | Sixth Street Partners Management Company, L.P.NEW | 80,539 | $3.1M | 0.5% | 0.1% | new |
| 16 | CHARLES SCHWAB INVESTMENT MANAGEMENT INCNEW | 80,539 | $3.1M | 0.0% | 0.1% | new |
| 17 | VANGUARD FIDUCIARY TRUST CONEW | 70,912 | $2.8M | 0.0% | 0.1% | new |
| 18 | BANK OF AMERICA CORP /DE/NEW | 65,790 | $2.6M | 0.0% | 0.1% | new |
| 19 | CITIGROUP INCNEW | 62,688 | $2.4M | 0.0% | 0.1% | new |
| 20 | NOMURA HOLDINGS INCNEW | 60,869 | $2.4M | 0.0% | 0.1% | new |
| 21 | LPL Financial LLCNEW | 52,540 | $2.0M | 0.0% | 0.1% | new |
| 22 | MOORE CAPITAL MANAGEMENT, LPNEW | 50,000 | $1.9M | 0.0% | 0.1% | new |
| 23 | BlueCrest Capital Management LtdNEW | 50,000 | $1.9M | 0.1% | 0.1% | new |
| 24 | Kestra Advisory Services, LLCNEW | 36,625 | $1.4M | 0.0% | 0% | new |
| 25 | NORTHERN TRUST CORPNEW | 29,733 | $1.2M | 0.0% | 0% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.