Monitor for actual execution of the sale via Form 4 filings; if the full block hits the market, it could create near-term selling pressure. Watch for any lock-up expiration or secondary offering announcement. The coordinated nature of the filing suggests Summit Partners is systematically reducing its position, which may signal a lack of confidence in near-term upside.
Price Chart
Executive Summary
Summit Partners, a major pre-IPO investor in Klaviyo, filed four Form 144 notices on August 11, 2026, signaling intent to sell approximately 4.98 million shares of Series A common stock worth roughly $91.7 million. The filings cover four affiliated entities (Fund IX-B, Fund IX-A, Co-Invest (Kiwi), and Summit Investors GE IX/VC IV), all classified as 10% stockholders. This coordinated block sale by a large early backer represents about 3.9% of shares outstanding and is a significant overhang signal, though the actual sale may not occur.
Key Facts
- Summit Partners entities filed to sell ~4.98M shares of KVYO Series A common stock.
- Aggregate proposed sale value: ~$91.7 million based on filing prices.
- Fund IX-A: 2,955,112 shares (~$54.3M); Fund IX-B: 1,845,131 shares (~$33.9M); Co-Invest (Kiwi): 182,210 shares (~$3.3M); Summit Investors GE IX/VC IV: 15,531 shares (~$285K).
- All shares were acquired pre-IPO on 09/20/2023; selling entity is a 10% stockholder.
- Goldman Sachs & Co. LLC is the broker for all proposed sales.
- Filing date: 2026-08-11; proposed sale date also 2026-08-11.
- Total shares outstanding per filings: 126,937,933.
- Proposed sale represents ~3.9% of total shares outstanding.
Financial Impact
~$91.7 million aggregate proposed sale value, representing ~3.9% of shares outstanding
Risk Factors
- Large block sale overhang could pressure stock price.
- Summit Partners is a pre-IPO investor; exit signals potential peak valuation view.
- Actual sale may not occur, but intent alone creates uncertainty.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 24 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (KVYO) — Batch item 1 | 0001634426-26-000005 |
| Document: 0001634426-26-000005-index.html | 0001634415-26-000004 |
| Document: 0001634426-26-000005.txt | 0001830877-26-000003 |
| 144 Filing (KVYO) — Batch item 4 | 0001634415-26-000004 |
| Document: 0001634415-26-000004-index.html | 0001634426-26-000005 |
| Document: 0001634415-26-000004.txt | 0001634415-26-000004 |
| 144 Filing (KVYO) — Batch item 7 | 0001830877-26-000003 |
| Document: 0001830877-26-000003-index.html | 0001654074-26-000005 |
| Document: 0001830877-26-000003.txt | 0001634426-26-000005 |
| 144 Filing (KVYO) — Batch item 10 | 0001654074-26-000005 |
| Document: 0001654074-26-000005-index.html | 0001634426-26-000005 |
| Document: 0001654074-26-000005.txt | 0001634426-26-000005 |
| 144 Filing (KVYO) — Batch item 13 | 0001634426-26-000005 |
| Document: 0001634426-26-000005-index.html | 0001634426-26-000005 |
| Document: 0001634426-26-000005.txt | 0001634426-26-000005 |
| 144 Filing (KVYO) — Batch item 16 | 0001634415-26-000004 |
| Document: 0001634415-26-000004-index.html | 0001634426-26-000005 |
| Document: 0001634415-26-000004.txt | 0001634426-26-000005 |
| 144 Filing (KVYO) — Batch item 19 | 0001830877-26-000003 |
| Document: 0001830877-26-000003-index.html | 0001634426-26-000005 |
| Document: 0001830877-26-000003.txt | 0001634426-26-000005 |
| 144 Filing (KVYO) — Batch item 22 | 0001654074-26-000005 |
| Document: 0001654074-26-000005-index.html | 0001634426-26-000005 |
| Document: 0001654074-26-000005.txt | 0001634426-26-000005 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 7, 2026 19d ago | 144 | $17.57 | awaiting T+20 | — | $20.71 (+17.87%) |
Sep 11, 2026 6w ago | 144 | $16.36 $17.32 | ▲ +5.87% | ▲ +4.00% | $20.71 (+26.59%) |
Sep 1, 2026 7w ago | Insider Cluster | $19.31 $15.73 | ▼ −18.54% | ▼ −18.21% | $20.71 (+7.25%) |
Aug 18, 2026 9w ago | Insider Cluster | $18.20 $15.87 | ▲ +12.80% | ▲ +10.85% | $20.71 (−13.79%) |
Aug 18, 2026 9w ago | Insider Cluster | $18.20 $15.87 | ▲ +12.80% | ▲ +10.85% | $20.71 (−13.79%) |
Aug 11, 2026 10w ago | 144 | $17.25 $16.13 | ▲ +6.49% | ▲ +4.59% | $20.71 (−20.06%) |
May 20, 2026 22w ago | Insider Cluster | $14.91 $12.82 | ▼ −14.02% | ▼ −14.35% | $20.71 (+38.90%) |
May 18, 2026 23w ago | Insider Cluster | $14.70 $13.46 | ▼ −8.44% | ▼ −9.42% | $20.71 (+40.88%) |
May 18, 2026 23w ago | 144 | $14.61 $13.84 | ▼ −5.27% | ▼ −6.85% | $20.71 (+41.75%) |
Apr 29, 2026 25w ago | DEFA14A | $20.09 $15.84 | ▼ −21.15% | ▼ −26.38% | $20.71 (+3.09%) |
US Market Status
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