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SUMMIT PARTNERS L P

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13F filer, CIK 830588, BOSTON, MA

SUMMIT PARTNERS L P reported $1,417,831,249 across 7 holdings for the quarter ended 2025-06-30, in a 13F-HR/A filed 2025-11-04.

Filed (acceptance time not in the bulk data set), ingested 13F-HR/A 0000830588-25-000003

Period
2025-06-30
Reported value
$1.42B
Holdings
7
Top 10 weight
100%
New
1
Sold out
3

Part of the filer group SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC

How groups are built

Largest buys vs the previous quarter

SecurityShares changeApprox. value
AVAHnew+9,651,422$50.5M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
KVYOreduced-8,000,000-$269M
SOLO BRANDS INCexited-44,034,960-$7.4M
MARKFORGED HLDG CORP EQUCOR…exited-1,473,154-$6.89M
EGHTexited-69,842-$140K

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q2 2025

Share positions as resolved from 13F-HR/A 0000830588-25-000003, largest first. % of portfolio is the value over $1,417,831,249, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
KVYOKLAVIYO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 46,427,778 shares; 2024Q4: 40,827,778 shares; 2025Q1: 38,827,778 shares; 2025Q2: 30,827,778 shares 30,827,778$1.04B73.01%-8,000,000Timeline
LFSTLIFESTANCE HEALTH GROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 41,932,358 shares; 2024Q4: 41,932,358 shares; 2025Q1: 41,932,358 shares; 2025Q2: 41,932,358 shares 41,932,358$217M15.29%0Timeline
AKAA K A BRANDS HLDG CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 6,053,693 shares; 2024Q4: 6,053,693 shares; 2025Q1: 6,053,693 shares; 2025Q2: 6,053,693 shares 6,053,693$62.4M4.4%0Timeline
AVAHAVEANNA HEALTHCARE HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 9,651,422 shares 9,651,422$50.5M3.56%newTimeline
JAMFJAMF HOLDING CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 4,475,381 shares; 2024Q4: 4,475,381 shares; 2025Q1: 4,475,381 shares; 2025Q2: 4,475,381 shares 4,475,381$42.6M3%0Timeline
MTSIMACOM TECH SOLUTIONS HLDGS IQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 45,512 shares; 2024Q4: 45,512 shares; 2025Q1: 47,650 shares; 2025Q2: 47,650 shares 47,650$6.83M0.48%0Timeline
ATENA10 NETWORKS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 606,263 shares; 2024Q4: 174,464 shares; 2025Q1: 187,367 shares; 2025Q2: 187,367 shares 187,367$3.63M0.26%0Timeline

Sold out in Q2 2025

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
SOLO BRANDS INCSOLO BRANDS INC44,034,960$7.4Mshares
MARKFORGED HLDG CORP EQUCOR…MARKFORGED HLDG CORP EQUCORP ACT …1,473,154$6.89Mshares
EGHT8X8 INC NEW69,842$140Kshares

How Q2 2025 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0000830588-25-000001 superseded2025-07-16acceptance time not in the bulk data set
13F-HR/A 0000830588-25-000003 baserestatement2025-11-04acceptance time not in the bulk data set