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    Sebastien Cyrus Naji

    Research Analyst at William Blair & Company, L.L.C.

    Sebastien Cyrus Naji is an Equity Research Analyst at William Blair & Company, L.L.C., specializing in the technology sector with a focus on semiconductors and infrastructure systems. He actively covers companies such as Cisco Systems, Arm Holdings, Broadcom, NVIDIA, and Oracle, and has demonstrated a strong performance track record with a 75% success rate and an average return of 19.74% from his equity ratings. Sebastien joined William Blair in November 2018, following prior experience at Deloitte and holds a B.S. in materials engineering and economics from the University of Pennsylvania. He is recognized for his expertise in technology equity research and frequently participates in earnings call discussions with leading tech firms.

    Sebastien Cyrus Naji's questions to CISCO SYSTEMS (CSCO) leadership

    Sebastien Cyrus Naji's questions to CISCO SYSTEMS (CSCO) leadership • Q3 2025

    Question

    Sebastien Cyrus Naji from William Blair asked about the mix of white box versus full system sales to hyperscalers and whether the rise of AI is driving a shift in that mix.

    Answer

    CEO Chuck Robbins stated that he has not seen a meaningful shift and that the predominance of sales remains full systems, although Cisco can support white box models if requested. CFO Scott Herren reinforced this by noting that two-thirds of the Q3 AI orders were for systems, not individual components, continuing a trend predicted in the prior quarter.

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    Sebastien Cyrus Naji's questions to ARM HOLDINGS PLC /UK (ARM) leadership

    Sebastien Cyrus Naji's questions to ARM HOLDINGS PLC /UK (ARM) leadership • Q4 2025

    Question

    Sebastien Naji of William Blair & Company inquired about the licensing deal with the Malaysian government, asking about its structure and whether it signals a new trend of sovereign-level deals driven by sovereign AI initiatives.

    Answer

    CEO Rene Haas called the deal a 'milestone event,' praising Malaysia's vision to build its AI and cloud startup ecosystem. The agreement provides startups with access to Arm's CSS technology to accelerate chip development. While not forecasting more deals, Haas suggested it could have a 'knock-on effect' for other governments.

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    Sebastien Cyrus Naji's questions to Arista Networks (ANET) leadership

    Sebastien Cyrus Naji's questions to Arista Networks (ANET) leadership • Q1 2025

    Question

    Sebastien Naji asked about demand from the traditional, non-AI parts of cloud titan businesses and whether that spending is trending ahead of expectations for the year.

    Answer

    CEO Jayshree Ullal observed that the spending environment is now much more balanced compared to 2023, when cloud titans pivoted heavily towards AI. She now sees a 'surgical focus' on AI combined with continued upgrades of traditional cloud networks, leading to healthy, balanced demand across both areas.

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    Sebastien Cyrus Naji's questions to Arista Networks (ANET) leadership • Q4 2024

    Question

    Sebastien Naji asked if Arista's opportunity differs between general-purpose GPU clusters from NVIDIA and custom ASIC solutions from cloud customers, and if one approach drives more Arista sales.

    Answer

    CEO Jayshree Ullal explained that Arista is GPU-agnostic and sees opportunity with all types of accelerators. While NVIDIA is currently dominant, she anticipates the market could become a 50-50 split between NVIDIA and other solutions (AMD, custom ASICs) in a few years. This trend, she believes, will increase the opportunity for customers to choose best-of-breed networking from Arista rather than being locked into a vendor-specific bundle.

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    Sebastien Cyrus Naji's questions to F5 (FFIV) leadership

    Sebastien Cyrus Naji's questions to F5 (FFIV) leadership • Q1 2025

    Question

    Asked for an update on the CDN product from the Lilac acquisition and its traction within the Distributed Cloud Services business.

    Answer

    The CDN capability is not a standalone offering to compete in the CDN market but is successfully bundled with F5's core security services on the Distributed Cloud platform for customers who require both.

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