Summit Partners L P's Form 4 filing
Klaviyo, Inc. (KVYO) · filed Aug 13, 2026
- Accession no.
- 0001193125-26-349311
- Filed
- Aug 13, 2026, 4:30 PM ET
- Trade date
- Aug 11, 2026
- Filing delay
- 2 days
- Rule 10b5-1 plan
- Not checked
This filing lists 2 non-derivative transactions and 1 derivative transaction. Open-market sales total $88.5M. It was filed 2 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Summit Partners L PCIK 0000830588 | 10% Owner |
| Summit Partners Growth Equity Fund IX-A, L.P.CIK 0001634415 | 10% Owner |
| Summit Partners Growth Equity Fund IX-B, L.P.CIK 0001634426 | 10% Owner |
| Summit Investors Ge IX/VC IV, LLCCIK 0001654074 | 10% Owner |
| Summit Partners Co-Invest (Kiwi), LPCIK 0001830877 | 10% Owner |
| Summit Investors Ge IX/VC IV (UK), L.P.CIK 0001846709 | 10% Owner |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 11, 2026 | Series A Common Stock, par value $0.001 per share | CConversionAcquired | +5,000,000 | –F1 | – | 5,000,000 | Indirect | |
| Aug 11, 2026 | Series A Common Stock, par value $0.001 per share | SSaleDisposed | −5,000,000 | $17.71 | −$88,550,000 | 0 | Indirect |
Derivative securities (Table II)
Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.
| Trade date | Security | Transaction | Underlying shares | Unit price | Value | Held after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 11, 2026 | Series A Common Stock, par value $0.001 per share | CConversionAcquired | +5,000,000 | –F1 | – | 13,852,778 | Indirect |
Footnotes and remarks
Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.
- F1
The Series B common stock, par value $0.001 per share ("Series B Common Stock"), is convertible into an equal number of shares of Series A common stock, par value $0.001 per share ("Series A Common Stock"), at any time, at the holder's election, and has no expiration date. Each share of Series B Common Stock will automatically convert into Series A Common Stock upon the earlier of (i) the date specified by 66-2/3% of the outstanding shares of Series B Common Stock, voting as a single series; (ii) following the seventh anniversary of the closing of Klaviyo, Inc.'s (the "Company") initial public offering; or (iii) any transfer, whether or not for value, except for certain permitted transfers described in the Company's certificate of incorporation.
Referenced by the price of 1 transaction in Table I and 1 transaction in Table II.