SP
Summit Partners L P
Concentrated strategySector-focusedMomentum follower
Total reported value
$670.2M
Reporting period: 2026-03-31 · Number of holdings: 7
SUMMIT PARTNERS L P disclosed 7 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $670.2M and a quarterly turnover rate of 45.2%.
Personality snowflake
- Concentration
- 100
- Portfolio Stability
- 45.21
- Momentum/Contrarian
- 100
- Sector conviction
- 100
- Diversification
- 14
- Sizing Uniformity
- 85.83
Recent moves
Add LFST
-12.9% -$49.9M
Trim KVYO
0.0% -$245.3M
Add AKA
0.0% -$2.3M
Add MTSI
+3.4% $2.8M
Trim AVAH
-27.8% -$26.6M
Add ATEN
+6.8% $1.3M
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | KVYO | Klaviyo Inc-a | Stock-Other | 54.74% | -3.50% | — | |
| 2 | LFST | Lifestance Health Group INC | Stock-Other | 27.76% | +5.30% | -12.87% | |
| 3 | AKA | Aka Brands Holding CORP | Stock-Other | 9.32% | +3.16% | — | |
| 4 | AVAH | Aveanna Healthcare Holdings | Stock-Other | 5.23% | -0.64% | -27.81% | |
| 5 | MTSI | Macom Technology Solutions H | Stock-Tech | 1.63% | +0.85% | +3.41% | |
| 6 | ATEN | A10 Networks INC | Stock-Other | 0.69% | +0.37% | +6.78% | |
| 7 | SBDS | Solo Brands INC - Class A | Stock-Other | 0.62% | -0.01% | — |
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 7 | $670.2M | 45 | |
| 2025-12-31 | 8 | $1.1B | 20 | |
| 2025-09-30 | 8 | $924.3M | 52 | |
| 2025-06-30 | 7 | $1.4B | 20 | |
| 2025-03-31 | 9 | $1.6B | 100 | |
| 2024-12-31 | 8 | $2.2B | 0 | |
| 2024-09-30 | 9 | $2.2B | 0 | |
| 2024-06-30 | 9 | $1.7B | 0 | |
| 2024-03-31 | 10 | $1.8B | 0 | |
| 2023-12-31 | 11 | $2.7B | 0 | |
| 2023-09-30 | 11 | $2.9B | 0 | |
| 2023-06-30 | 10 | $1.4B | 0 | |
| 2023-03-31 | 10 | $1.4B | 0 | |
| 2022-12-31 | 10 | $1.2B | 0 | |
| 2022-09-30 | 11 | $1.4B | 0 | |
| 2022-06-30 | 11 | $1.5B | 0 | |
| 2022-03-31 | 12 | $2.3B | 0 | |
| 2021-12-31 | 11 | $3.1B | 0 | |
| 2021-09-30 | 9 | $2.9B | 0 | |
| 2021-06-30 | 5 | $1.9B | 100 | |
| 2021-03-31 | 4 | $626.7M | 26 | |
| 2020-12-31 | 5 | $488.5M | 41 | |
| 2020-09-30 | 6 | $350.6M | 57 | |
| 2020-06-30 | 5 | $209.0M | 15 | |
| 2020-03-31 | 5 | $180.3M | 15 | |
| 2019-12-31 | 6 | $208.4M | 84 | |
| 2019-09-30 | 8 | $508.8M | 28 | |
| 2019-06-30 | 8 | $560.2M | 70 | |
| 2019-03-31 | 7 | $452.4M | 46 | |
| 2018-12-31 | 7 | $641.8M | 17 | |
| 2018-09-30 | 8 | $728.8M | 100 | |
| 2018-06-30 | 10 | $804.4M | 100 | |
| 2018-03-31 | 7 | $1.2B | 46 | |
| 2017-12-31 | 7 | $813.8M | 100 | |
| 2017-09-30 | 6 | $136.2M | 12 | |
| 2017-06-30 | 6 | $137.6M | 52 | |
| 2017-03-31 | 7 | $233.5M | 50 | |
| 2016-12-31 | 7 | $367.7M | 59 | |
| 2016-09-30 | 6 | $453.6M | 100 | |
| 2016-06-30 | 2 | $115.7M | 100 | |
| 2016-03-31 | 3 | $173.4M | 59 | |
| 2015-12-31 | 3 | $318.9M | 28 | |
| 2015-09-30 | 3 | $239.6M | 23 | |
| 2015-06-30 | 3 | $301.7M | 9 | |
| 2015-03-31 | 3 | $277.0M | 12 | |
| 2014-12-31 | 4 | $311.1M | 73 | |
| 2014-09-30 | 6 | $415.8M | 19 | |
| 2014-06-30 | 5 | $423.5M | 53 | |
| 2014-03-31 | 4 | $295.6M | 88 | |
| 2013-12-31 | 6 | $655.6M | 42 | |
| 2013-09-30 | 5 | $867.6M | 11 | |
| 2013-06-30 | 5 | $860.4M | 100 |
Holding changes this quarter
Summit Partners L P's most significant position changes for 2026-03-31: Sold out: Jamf Holding CORP (JAMF); Trim: Lifestance Health Group INC (LFST) — shares -12.87%; Add: Macom Technology Solutions H (MTSI) — shares +3.41%; Trim: Aveanna Healthcare Holdings (AVAH) — shares -27.81%; Add: A10 Networks INC (ATEN) — shares +6.78%.
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | LFST | Lifestance Health Group INC | +5.3% | -12.87% | Trim |
| 2 | AKA | Aka Brands Holding CORP | +3.2% | — | Unchanged |
| 3 | MTSI | Macom Technology Solutions H | +0.9% | +3.41% | Add |
| 4 | ATEN | A10 Networks INC | +0.4% | +6.78% | Add |
| 5 | SBDS | Solo Brands INC - Class A | 0% | — | Unchanged |
| 6 | AVAH | Aveanna Healthcare Holdings | -0.6% | -27.81% | Trim |
| 7 | KVYO | Klaviyo Inc-a | -3.5% | — | Unchanged |
| 8 | JAMF | Jamf Holding CORP | — | EXIT | Sold out |
FAQ
What is Summit Partners L P and what type of investor is it?
Summit Partners L P is a investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-03-31), the firm manages a tracked equity portfolio valued at approximately $670.2M, spread across 7 disclosed positions.
What are Summit Partners L P's largest equity positions?
Based on the latest 13F filing, Summit Partners L P's top holdings by market value are:
1. Klaviyo Inc-a (KVYO) — $366.9M (54.7%)
2. Lifestance Health Group INC (LFST) — $186.1M (27.8%)
3. Aka Brands Holding CORP (AKA) — $62.4M (9.3%)
4. Aveanna Healthcare Holdings (AVAH) — $35.1M (5.2%)
5. Macom Technology Solutions H (MTSI) — $10.9M (1.6%)
What changes did Summit Partners L P make in its most recent portfolio filing?
In the latest reported quarter, Summit Partners L P made 5 notable position adjustments: 0 new positions were initiated, 2 existing holdings were added to, 2 positions were partially reduced, and 1 were completely exited. The largest of these moves: Sold out: Jamf Holding CORP (JAMF); Trim: Lifestance Health Group INC (LFST) — shares -12.87%; Add: Macom Technology Solutions H (MTSI) — shares +3.41%; Trim: Aveanna Healthcare Holdings (AVAH) — shares -27.81%; Add: A10 Networks INC (ATEN) — shares +6.78%
What sectors does Summit Partners L P focus on?
Summit Partners L P is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 100.0%