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Portfolio (Quarterly) Guide ↗

SUMMIT PARTNERS L P

· CIK 0000830588
13F Portfolio $670.2B AUM 7 positions Filed May 8, 2026 EDGAR ↗ ← All Funds
Q1 2026 Q4 2025 · All 2 Added 2 Reduced 1 Exited
# Ticker Company Sector Shares Value ↓ % Port Chg Shares Chg % Period Price ① Since Period ①
1 MTSI MACOM TECH SOLUTIONS HLDGS I Technology 49,273.0 $10.9M 1.63% +2K +3.4% $222.07 +72.7%
2 ATEN A10 NETWORKS INC Technology 200,065.0 $4.6M 0.69% +13K +6.8% $23.12 +20.9%

Period Price is the implied market price on the last day of the reporting period, calculated as reported value ÷ shares held. It is not the fund's purchase price or cost basis — the fund may have initiated or added to the position at any point during the quarter at a different price. Since Period shows the price change from that quarter-end snapshot to today's last price — it reflects stock movement after the report date, not the fund's actual return.

Sector Allocation
Technology 57.4%
Healthcare 33.2%
Consumer Cyclical 9.4%