Insider Trading & Ownership of SUMMIT PARTNERS L P

Location
Boston, MA
Summary
The estimated value of insider holdings of SUMMIT PARTNERS L P is at least $822,355,176 dollars as of 05 Jan 2026. SUMMIT PARTNERS L P is the 10%+ Owner of EngageSmart, Inc. and owns shares of EngageSmart, Inc. stock worth about $572.61M. SUMMIT PARTNERS L P is the 10%+ Owner of LifeStance Health Group, Inc. and owns shares of LifeStance Health Group, Inc. (LFST) stock worth about $169.97M. SUMMIT PARTNERS L P is the 10%+ Owner of A10 Networks, Inc. and owns shares of A10 Networks, Inc. (ATEN) stock worth about $68.48M. SUMMIT PARTNERS L P is the 10%+ Owner of Solo Brands, Inc. and owns shares of Solo Brands, Inc. (DTCB) stock worth about $10.9M. SUMMIT PARTNERS L P is the 10%+ Owner of Klaviyo, Inc. and owns shares of Klaviyo, Inc. (KVYO) stock worth about $388.3K.
Signature
/s/ Adam H. Hennessey, as attorney-in-fact for Summit Partners, L.P.
All Insider Reports
All Insider Reports

Notify me when SUMMIT PARTNERS L P files a new Insider Trading report.

⭐ Subscribe ⭐

Ownership of SUMMIT PARTNERS L P

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
ESMT EngageSmart, Inc. 10%+ Owner $572,613,882 07 Mar 2023
LFST LifeStance Health Group, Inc. 10%+ Owner $169,970,305 -$42,626,750 -20% 18 Aug 2025
ATEN A10 Networks, Inc. 10%+ Owner $68,484,098 08 Sep 2022
DTCB Solo Brands, Inc. 10%+ Owner $10,898,613 01 Jan 2026
KVYO Klaviyo, Inc. 10%+ Owner $388,278 -$682,084,750 -100% 08 Sep 2025

Insider Transactions Reported by SUMMIT PARTNERS L P:

Sym Company Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.