Name: SUMMIT PARTNERS L P 13F Holdings
Creator: 13F Insight

AI Analysis · Q2 2026

Portfolio Overview

The filing for Summit Partners L P (CIK: 0000830588) as of September 30, 2025, reveals a highly concentrated, mid-to-large capitalization portfolio with a distinct value-oriented tilt. The total portfolio value decreased significantly by 34.9%, declining from $1.41 billion in the previous quarter to $920.91 million. This substantial reduction in assets under management (AUM) is driven primarily by active position reductions rather than market depreciation alone, as eviden...

Analysis generated by 13F Insight from SEC Form 13F filing data · Q2 2026. Methodology

Quarter at a glance — Q2 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q2 2026.

#HoldingValueSharesWeight

LIFESTANCE HEALTH GROUP INC

$250M23.3M41.0%03

AKA

A K A BRANDS HLDG CORP

MACOM TECH SOLUTIONS HLDGS I

$2M6K0.4%

Filing history

2026Q2Jun 30

$609M▼ 9.1%

5 positionsView →2026Q1Mar 31

$670M▼ 36.2%

7 positionsView →2025Q4Dec 31

$1.1B▲ 14.1%

8 positionsView →2025Q3Sep 30

$921M▼ 35.0%

7 positionsView →2025Q2Jun 30

$1.4B▼ 11.9%

7 positionsLocked 2025Q1Mar 31

$1.6B▼ 27.9%

7 positionsLocked 2024Q4Dec 31

$2.2B▼ 0.3%

8 positionsLocked 2024Q3Sep 30

$2.2B▲ 33.3%

9 positionsLocked 2024Q2Jun 30

$1.7B▼ 7.3%

9 positionsLocked 2024Q1Mar 31

$1.8B▼ 33.8%

10 positionsLocked 2023Q4Dec 31

$2.7B▼ 6.1%

11 positionsLocked 2023Q3Sep 30

$2.9B▲ 111.4%

11 positionsLocked

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