# EDGAR Filing Document

**Accession Number:** 0000830588
**File Stem:** 0001104659-25-082554
**Filing Date:** 2025-8
**Character Count:** 5685
**Document Hash:** dfea3819d37644c287943ed94fca86e3
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-082554.hdr.sgml**: 20250825

**ACCESSION NUMBER**: 0001104659-25-082554

**CONFORMED SUBMISSION TYPE**: N-PX

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250630

**FILED AS OF DATE**: 20250825

**EFFECTIVENESS DATE**: 20250825

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SUMMIT PARTNERS L P
- **CENTRAL INDEX KEY:** 0000830588

**ORGANIZATION NAME:**
- **EIN:** 043478657
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** N-PX
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-11703
- **FILM NUMBER:** 251251423

**BUSINESS ADDRESS:**
- **STREET 1:** 222 BERKELEY STREET
- **STREET 2:** 18TH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116
- **BUSINESS PHONE:** 6178241094

**MAIL ADDRESS:**
- **STREET 1:** 222 BERKELEY STREET
- **STREET 2:** 18TH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116

## FORM N-PX
### ANNUAL REPORT OF PROXY VOTING RECORD

## N-PX: Filer Information

**Filer CIK:** 0000830588

**Date of Report:** 06/30/2025

**Are you a Registered Management Investment Company or an Institutional Manager?:** Institutional Manager

**Is this a LIVE or TEST Filing?:** LIVE

**Is this an electronic copy of an official filing submitted in paper format?:** [ ]

### Submission Contact Information
_Not provided in this filing._

### Notification Information
**Notify via Filing Website only?:** [ ]

## N-PX: Cover Page

**Name of reporting person:** SUMMIT PARTNERS L P

**Address:** 222 BERKELEY STREET, BOSTON, MA 02116

**Telephone number:** 617-824-1000

**Name of agent for service:** —

**Agent Address:** —, —, — —

**Reporting Period:** Report for the year ended 06/30/2025

**SEC File Number:** 028-11703

**CRD Number (if any):** —

**Other SEC File Number (if any):** —

**LEI (if any):** —

**Report Type (check only one):**

Institutional Manager.

- [x] Institutional Manager Voting Report

- [ ] Institutional Manager Notice Report

- [ ] Institutional Manager Combination Report

Registered Management Investment Company.

- [ ] Fund Voting Report

- [ ] Fund Notice Report

**Do you wish to provide explanatory information pursuant to Special Instruction B.4?:**

- [x] No

- [ ] Yes

**Additional information:** —

## N-PX: Summary - Included Managers

**Number of Included Institutional Managers:** 0

**Included Institutional Managers:** —

## FORM N-PX PROXY VOTING RECORD

| NAME OF ISSUER                           | CUSIP     | MEETING DATE   | VOTE DESCRIPTION   | VOTE CATEGORY   |   SHARES VOTED |   SHARES ON LOAN | HOW VOTED   |   SHARES VOTED FOR OR AGAINST MANAGEMENT | FOR OR AGAINST MANAGEMENT   | OTHER INFO                                                                                                                                               |
|:---|:---|:---|:---|:---|---:|---:|:---|---:|:---|:---|
| Klaviyo                                  | 49845K101 | 06/10/2025     | Proposal No. 3     | COMPENSATION    |       38827778 |                0 | FOR         |                                 38827778 | FOR                         |  |
| Klaviyo                                  | 49845K101 | 06/10/2025     | Proposal No. 4     | COMPENSATION    |       38827778 |                0 | FOR 1 YEAR  |                                 38827778 | FOR                         |  |
| MACOM Technology Solutions Holdings Inc. | 55405Y100 | 04/06/2025     | Proposal No. 2     | COMPENSATION    |          45512 |                0 | FOR         |                                    45512 | FOR                         | Shares Voted reflect shares held by Peter Chung for the benefit of Summit Partners, L.P., which he has empowered to determine how such shares will vote. |
| MACOM Technology Solutions Holdings Inc. | 55405Y100 | 04/06/2025     | Proposal No. 3     | COMPENSATION    |          45512 |                0 | FOR 1 YEAR  |                                    45512 | FOR                         | Shares Voted reflect shares held by Peter Chung for the benefit of Summit Partners, L.P., which he has empowered to determine how such shares will vote. |
| A10 Networks, Inc.                       | 002121101 | 04/17/2025     | Proposal No. 2     | COMPENSATION    |         174464 |                0 | FOR         |                                   174464 | FOR                         | Shares Voted reflect shares held by Peter Chung for the benefit of Summit Partners, L.P., which he has empowered to determine how such shares will vote. |
| A10 Networks, Inc.                       | 002121101 | 04/17/2025     | Proposal No. 3     | COMPENSATION    |         174464 |                0 | FOR         |                                   174464 | FOR                         | Shares Voted reflect shares held by Peter Chung for the benefit of Summit Partners, L.P., which he has empowered to determine how such shares will vote. |
| JAMF Holdings Corp                       | 47074L105 | 06/09/2025     | Proposal No. 2     | COMPENSATION    |        4475381 |                0 | FOR         |                                  4475381 | FOR                         |  |
| Lifestance Health Group Inc.             | 53228F101 | 06/03/2025     | Proposal No. 3     | COMPENSATION    |       41932358 |                0 | FOR         |                                 41932358 | FOR                         |  |

## N-PX: Signature Block

**Reporting Person:** SUMMIT PARTNERS L P

**By (Signature):** ADAM H. HENNESSEY

**By (Printed Signature):** ADAM H. HENNESSEY

**By (Title):** MBR OF SUMMIT MASTER CO, LLC (GP OF SUMMIT PARTNERS, L.P.)

**Date:** 08/25/2025