- Info
- Portfolio
- Significant Ownership
- Insider Ownership
Significant Ownership of SUMMIT PARTNERS L P
- Signature - Title
- /s/ Adam H. Hennessey, as POA - Adam H. Hennessey, as Power of Attorney
- Location
- Boston, MA
- Summary
- This page shows a list of all the recent SCHEDULE 13D/G filings made by SUMMIT PARTNERS L P.
Follow Filing Activity
Follow SUMMIT PARTNERS L P and return when a new Schedule 13D/G filing changes the record on this page.
This uses the existing product follow flow to surface future filing-backed changes without guessing what they mean.
Useful next steps after a schedule filing
Use the page below that answers the next obvious question about this reporting manager or security.
- Latest 13D/G reports to compare this manager with other current ownership disclosures.
- Latest insider ownership reports if you want insider activity alongside the beneficial ownership record.
- Latest 13F portfolio filings for broader institutional context.
- Latest investment quarter holder pages when the next step is security-level holder history.
Significant Ownership of SUMMIT PARTNERS L P
| Sym | Company | Class | Ownership | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|---|
| KVYO | Klaviyo, Inc. | Series A Common Stock, par value $0.001 per share | 12% | $522,033,423 | -$331,587,750 | 18,852,778 | -39% | Summit Partners, L.P. | 30 Sep 2025 |
| LFST | LifeStance Health Group, Inc | Common Stock, par value $0.01 per share | 8.6% | $184,385,932 | 33,524,715 | Summit Partners, L.P. | 30 Sep 2025 |
Schedules 13D/G Reported by SUMMIT PARTNERS L P:
| Sym | Target | Class | Ownership | Change | Current Shares | Change | Value | Reporting name | Form | Report Period | Filing Date |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.