The massive registered share overhang (~49% of market cap) from insider/SPAC sponsor selling will likely pressure BRUN shares in the near term, despite the strong Q2 earnings. Traders should watch for accelerated selling by holders and potential lock-up expirations. The cross-filing actuarial data shows this specific combination (offering + recent earnings) has historically been a strong amplifier, suggesting elevated downside risk. Consider short-term bearish positioning or avoiding long exposure until the overhang clears.
Price Chart
Executive Summary
Boost Run Inc. filed a 424B5 prospectus supplement registering 58.7M shares of Class A common stock and 4.0M warrants for resale by selling holders, including shares from the business combination, sponsor, private warrants, Class B conversion, and earnout shares. This filing follows a strong Q2 earnings report (revenue +270% YoY, $1.9B total contract value) filed 5 days prior, and the registration of a large overhang (nearly 50% of current market cap) creates significant near-term selling pressure despite the positive operational momentum. The cross-filing actuarial verdicts amplify the impact, indicating this combination of offering and recent earnings/restructuring context has historically been a strong signal.
Key Facts
- Registers 58,738,753 shares of Class A common stock for resale by selling holders, including 29.5M from Class B conversion, 14.2M held by selling holders, 10.97M earnout shares, and 4.0M underlying private warrants.
- Also registers 4,007,216 private warrants for resale.
- Filed 5 days after a strong Q2 2026 earnings report (revenue $31.1M, +270% YoY, $1.9B total contract value) which likely triggered the registration of these shares.
- The registered share count represents approximately 49% of the current market cap of $1.2B, creating a massive potential overhang.
- The filing is a supplement to a July 10, 2026 prospectus and incorporates the Q2 2026 10-Q and Q1 2026 10-Q/A.
Financial Impact
Up to 58.7M shares registered for resale, representing ~49% of the $1.2B market cap at current prices, plus 4.0M warrants. No new capital raised for the company — this is a secondary resale registration.
Risk Factors
- Massive dilution risk from up to 58.7M shares hitting the market, representing ~49% of current market cap.
- Insider and SPAC sponsor selling pressure could overwhelm positive earnings momentum.
- No new capital raised for the company — this is purely a resale registration, signaling insider desire to exit.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 4 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 424B5 Filing (Primary) | 0001493152-26-039115 |
| Document: 0001493152-26-039115-index-headers.html | 0001493152-26-039115 |
| Document: 0001493152-26-039115-index.html | 0001493152-26-039115 |
| Document: 0001493152-26-039115.txt | 0001493152-26-039115 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 20, 2026 7d ago | EFFECT | $8.47 | awaiting T+5 | — | $7.48 (−11.69%) |
Oct 6, 2026 20d ago | 3 | $13.75 $9.65 | ▼ −29.82% | ▼ −28.84% | $7.48 (−45.60%) |
Oct 6, 2026 20d ago | 8-K | $15.17 $11.47 | ▼ −24.39% | ▼ −24.25% | $7.48 (−50.69%) |
Oct 5, 2026 21d ago | 8-K | $15.17 $11.47 | ▼ −24.39% | ▼ −24.25% | $7.48 (−50.69%) |
Aug 19, 2026 9w ago | 424B5 | $19.01 $18.19 | ▲ +4.31% | ▲ +3.93% | $7.48 (+60.65%) |
Aug 14, 2026 10w ago | 8-K | $22.93 $19.51 | ▼ −14.91% | ▼ −13.55% | $7.48 (−67.38%) |
Jul 27, 2026 13w ago | 8-K | $19.36 $20.04 | ▲ +3.51% | ▲ +2.44% | $7.48 (−61.36%) |
Jul 13, 2026 15w ago | EFFECT | $25.68 $24.42 | ▼ −4.91% | ▼ −4.12% | $7.48 (−70.87%) |
Jul 6, 2026 16w ago | 8-K | $32.31 $28.44 | ▼ −11.98% | ▼ −12.47% | $7.48 (−76.85%) |
US Market Status
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