Who owns Boost Run Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of BRUN from SEC Form 13F filings across 81 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.
As of the 2026-06-30 reporting period, 81 institutions disclosed 16.1M shares of Boost Run Inc. worth $623.7M — about 35.8% of shares outstanding; the largest disclosed holder is TOMS Capital Investment Management LP. Source: SEC Form 13F filings, parsed by EvidInvest.
81
13F holders
$623.7M
value, 2026 filers
35.8%
of shares outstanding (16.1M sh)
81
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 | TOMS Capital Investment Management LPNEW | 3.1M | $121.3M | 2.6% | 6.9% | new |
| 2 | FMR LLCNEW | 1.8M | $69.2M | 0.0% | 4% | new |
| 3 | CITADEL ADVISORS LLCNEW | 1.3M | $51.3M | 0.0% | 2.9% | new |
| 4 | D. E. Shaw & Co., Inc.NEW | 1.3M | $48.5M | 0.0% | 2.8% | new |
| 5 | UBS Group AGNEW | 860,043 | $33.4M | 0.0% | 1.9% | new |
| 6 | AWM Investment Company, Inc.NEW | 813,739 | $31.6M | 2.7% | 1.8% | new |
| 7 | Capricorn Fund Managers LtdNEW | 750,000 | $29.1M | 2.3% | 1.7% | new |
| 8 | Hiddenite Capital Partners LPNEW | 750,000 | $29.1M | 2.5% | 1.7% | new |
| 9 | WELLINGTON MANAGEMENT GROUP LLPNEW | 619,239 | $24.0M | 0.0% | 1.4% | new |
| 10 | Yorkville Advisors Global, LPNEW | 582,367 | $22.6M | 26.2% | 1.3% | new |
| 11 | MORGAN STANLEYNEW | 490,680 | $19.0M | 0.0% | 1.1% | new |
| 12 | Harraden Circle Investments, LLCNEW | 466,375 | $18.1M | 2.3% | 1% | new |
| 13 | SCOGGIN MANAGEMENT LPNEW | 342,500 | $13.3M | 1.4% | 0.8% | new |
| 14 | Magnetar Financial LLCNEW | 291,975 | $11.3M | 0.1% | 0.6% | new |
| 15 | BlackRock, Inc.NEW | 273,575 | $10.6M | 0.0% | 0.6% | new |
| 16 | Linden Advisors LPNEW | 191,707 | $6.7M | 0.0% | 0.4% | new |
| 17 | GEODE CAPITAL MANAGEMENT, LLCNEW | 157,105 | $6.1M | 0.0% | 0.3% | new |
| 18 | VANGUARD CAPITAL MANAGEMENT LLCNEW | 150,150 | $5.8M | 0.0% | 0.3% | new |
| 19 | Periscope Capital Inc.NEW | 127,988 | $4.3M | 0.4% | 0.3% | new |
| 20 | SUSQUEHANNA INTERNATIONAL GROUP, LLPNEW | 113,368 | $4.4M | 0.0% | 0.3% | new |
| 21 | MILLENNIUM MANAGEMENT LLCNEW | 110,357 | $4.3M | 0.0% | 0.2% | new |
| 22 | NEXT CENTURY GROWTH INVESTORS LLCNEW | 105,506 | $4.1M | 0.2% | 0.2% | new |
| 23 | FirstWave Capital Management LLCNEW | 88,631 | $3.4M | 1.5% | 0.2% | new |
| 24 | JANE STREET GROUP, LLCNEW | 83,488 | $3.2M | 0.0% | 0.2% | new |
| 25 | BARCLAYS PLCNEW | 82,512 | $3.2M | 0.0% | 0.2% | 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.