Summit Partners Public Asset Management portfolio
Type not verifiedPortfolio as of Jun 30, 2026 (Q2 2026) · filed with the SEC on Aug 14, 2026 · data updated on Nov 5, 2026 · Q2 2026 13F (filing) ↗ · all its 13F filings ↗
A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.
Summit Partners Public Asset Management reported a $3.8 bn portfolio of 79 positions to the SEC as of the end of Q2 2026. Its largest positions are SNDK, GH, MKSI. During the quarter it opened Snowflake and Hut 8 and exited Insmed and Akamai Technologies.
Sections with a free account
What changed this quarter
91 positions with a change (28 new, 16 added to, 28 trimmed, 19 sold); also, 4 entered through an IPO. 12 are listed here: those of 0.5 points of the portfolio or more (up to 12).
- Newly listedCerebras SystemsCBRS0.8% of the portfolio
- Newly listedFervo EnergyFRVO0.5% of the portfolio
It started trading this quarter: it appears in a 13F for the first time. The filing does not say whether the manager already held it before the listing, so it is not counted as a purchase.
- Snowflake+2.9 ppof portfolioNew— → 2.9%
- Hut 8+2.9 ppof portfolioNew— → 2.9%
- Insmed−2.8 ppof portfolioSold out4.9% → —
- Datadog+2.7 ppof portfolioNew— → 2.7%
- Onto Innovation+2.3 ppof portfolioNew— → 2.3%
- Sandisk−16%fewer sharesReduced5.5% → 9.2%
- Akamai Technologies−1.7 ppof portfolioSold out3.1% → —
- Oruka Therapeutics+1.6 ppof portfolioNew— → 1.6%
- Glaukos+1.6 ppof portfolioNew— → 1.6%
- Abivax+1.4 ppof portfolioNew— → 1.4%
- Twilio+1.4 ppof portfolioNew— → 1.4%
- Silicon Motion Technology−43%fewer sharesReduced2.4% → 2.3%
The figure on the right: for positions added to or trimmed, the change in the number of shares (%); for new and sold ones, the points of the portfolio moved (pp). Below, the portfolio weight before → after. Traded weight: what it bought or sold, excluding price effects.
Top holdings
- SandiskSNDK9.2%
- Guardant HealthGH3.8%
- MKSMKSI3.7%
- DigitalOcean HoldingsDOCN3.6%
- Solaris Energy InfrastructureSEI3.5%
- Tower SemiconductorTSEM3.5%
- Nebius GroupNBIS3.2%
- SnowflakeSNOW2.9%
- Hut 8HUT2.9%
- NateraNTRA2.7%
- DatadogDDOG2.7%
- NVIDIANVDA2.3%
- ONTO InnovationONTO2.3%
- Silicon Motion TechnologySIMO2.3%
- SiTimeSITM2.0%
Portfolio by sector
- ● Information Technology 57%
- ● Health Care 20%
- ● Industrials 7%
- ● Consumer Discretionary 6%
- ● Energy 4%
- ● Real Estate 3%
- ● Utilities 2%
- ● Communication Services 1%
Declared options (25)
Besides stocks, Summit Partners Public Asset Management declared 10 puts (they gain if the stock falls) and 15 calls (they gain if it rises) with a notional of $1.8 bn. The 13F reports the value of the underlying shares, not the premium paid, so these figures look large and are not added to the portfolio. Nor does it say whether the option is bought or written, or its strike or expiry: it may be a hedge.
- PUTVaneck ETF TrustSMH$468M
- PUTSandiskSNDK$79.6M
- PUTDell TechnologiesDELLnew this quarter$76.4M
- PUTKLAKLAC$69.2M
- PUTIntelINTCnew this quarter$56.3M
- CALLARM HoldingsARM$47.9M
- CALLAlphabetGOOGLnew this quarter$46.5M
- CALLOracleORCLnew this quarter$44.0M
- PUTMarvell TechnologyMRVLnew this quarter$43.9M
- CALLAdvanced Micro DevicesAMDnew this quarter$41.0M
- CALLWestern DigitalWDCnew this quarter$39.0M
- CALLCoreWeaveCRWV$38.4M
Stakes above 5% (13D/13G)
Companies where this filer reported holding 5% or more of the shares. It is the figure from its latest filing on each one; history since December 2024.
How we classify it
Type not verified: we have not assigned a type because we found no document that is enough to tell. Most 13F filers are in this situation: we only review in depth those that meet the portfolio criteria.
Not counted as a concentrated manager: its top 10 positions are under 45%; more than 20% is options. Its portfolio is shown all the same, but it is left out of manager counts, the consensus and the ranking. How this is decided
Managers of a similar size
A 13F portfolio value between a third and three times this one, whatever the type of filer. It is not a comparison of what they hold.
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- C WorldWide Group Holding A/SInvestment firm · $4.0 bn
- Foxhaven Asset ManagementInvestment firm · $3.7 bn