---
title: "Arista faces a $9.7 billion parts bill after insiders sold $740.8 million of stock"
description: "Arista's own quarterly filing shows purchase commitments of $9.7 billion, up from $3.6 billion a year earlier, while insiders sold $740.8 million of stock. Cisco's inventory climbed to $5.7 billion, and both report into a market now asking who funds the buildout."
publisher: "The Inference"
section: "Hardware"
published: 2026-10-19T17:10:26.921Z
modified: 2026-10-19T17:10:26.921Z
canonical: https://theinference.org/article/arista-faces-a-9-7-billion-parts-bill-after-insiders-sold-740-8-million-of-stock
language: en
keywords: "Arista Networks, Cisco, AI Infrastructure, Networking, Insider Selling, Semiconductors"
---

# Arista faces a $9.7 billion parts bill after insiders sold $740.8 million of stock

> Arista's own quarterly filing shows purchase commitments of $9.7 billion, up from $3.6 billion a year earlier, while insiders sold $740.8 million of stock. Cisco's inventory climbed to $5.7 billion, and both report into a market now asking who funds the buildout.

## The chief executive sold at $201.22

On August 5, [Jayshree Ullal](https://theinference.org/markets/people/jayshree-ullal), chair and chief executive of [Arista Networks](https://theinference.org/markets/companies/arista-networks), the data-center switching maker, sold 767,029 shares at an average $201.22, or $154.3 million, under a pre-arranged Rule 10b5-1 trading plan; she kept 16.4 million shares [1]. Major shareholder Andreas Bechtolsheim sold $61.0 million the same day, and insiders as a group sold $740.8 million over three months [1]. By October 15 [the stock had fallen 5.1% to $185.54](https://www.marketbeat.com/instant-alerts/price-arista-networks-nyse-anet-stock-falls-51-should-you-sell-2026-10-15/), below her sale price [1]. Third-quarter results land on November 3 [2].

## The bill for the boom sits on two balance sheets

[Arista's 10-Q, its quarterly filing with the US securities regulator](https://www.sec.gov/Archives/edgar/data/1596532/000159653226000175/anet-20260630.htm), shows $9.7 billion of non-cancellable purchase commitments at June 30, off the balance sheet, with $9.4 billion due within 12 months, up from about $3.6 billion a year earlier [3][4]. The orders lock in memory and chips, and Ullal expects component constraints to persist into 2028 [4]. Revenue rose 37.7% to $3.04 billion and the 2026 outlook was lifted to about $12.6 billion [4], but gross margin slipped from 65.2% to 62.9% and the third-quarter operating-margin guide is 48 to 49% [5][4].

*Chart: **Arista's quarterly revenue doubled in three years and the pace is still rising** Line chart of Arista Networks quarterly revenue from Q3 2023 to Q2 2026 in US dollar billions, rising from 1.5 to 3.0*

*Quarterly revenue, US$ billions, from Arista's SEC filings, Q3 2023 through Q2 2026. [5]*

[Cisco](https://theinference.org/markets/companies/cisco) runs the same boom on the other foot: [fiscal fourth-quarter revenue of $17.3 billion](https://www.finanznachrichten.de/nachrichten-2026-08/69299641-cisco-systems-inc-cisco-reports-fourth-quarter-and-fiscal-year-2026-earnings-008.htm), up 18%, product orders up 35%, but inventory up from $3.2 billion to $5.7 billion in a year and adjusted gross margin down from 68.4% to 66.3%, with 65 to 66% guided [6]. Of [$9.3 billion in hyperscaler AI orders booked in fiscal 2026](https://theinference.org/article/cisco-s-9-3-billion-in-ai-orders-comes-due-just-as-hpe-finds-800-million-for-a-price-war), hyperscalers being the giant cloud operators, about $4 billion has become revenue; $7.5 billion lands in fiscal 2027 [6].

*Chart: **Gross margin is slipping at both networking makers as component costs bite** Column chart comparing Arista and Cisco gross margins a year ago and latest quarter, both down about two points*

*Arista: gross margin, Q2 2026 versus Q2 2025, per its 10-Q. Cisco: adjusted gross margin, fiscal Q4 2026 versus fiscal Q4 2025, per its earnings release. Percent. [4][5][6]*

*Chart: **The AI networking bill now sits on two balance sheets** Range chart showing Arista purchase commitments rising from 3.6 to 9.7 billion dollars and Cisco inventory from 3.2 to 5.7 billion dollars*

*Arista: non-cancellable purchase commitments at June 30, 2026, versus a year earlier, per its 10-Q and management on the Q2 call. Cisco: inventories at July 25, 2026, versus July 25, 2025, per its earnings release. US$ billions. [3][4][6]*

## Two readings of the same budgets

Deutsche Bank reconfirmed Buy ratings on both companies on October 19: analyst Gianmarco Conti argues hyperscaler money reaches networks 12 to 18 months late, so today's budgets carry revenue well past next year [7]. He still flags [optical circuit switches, which steer light without electronic packet switching](https://theinference.org/article/cisco-named-microsoft-and-alibaba-as-production-customers-then-co-authored-an-optics-standard-with-nvidia), as a threat to the spine layer; Ullal counters that pluggable optics and copper hold until 2028 or 2029 [7]. In Singapore on October 12, [Broadcom](https://theinference.org/markets/companies/broadcom) chief [Hock Tan](https://theinference.org/markets/people/hock-tan) read the same budgets the other way: capital "[might be the biggest constraint](https://www.computerweekly.com/news/366652046/Capital-not-chips-may-be-the-real-brake-on-the-AI-build-out)," with about $200 billion a year spent running AI models against roughly $150 billion coming back [8]. Broadcom and [Marvell](https://theinference.org/markets/companies/marvell) each fell about 4% after the remarks [9].

## Where the delay would land

The exposure is uneven: Cisco's hyperscaler AI work is about 6% of revenue, while Arista rides the same budgets directly, with [Microsoft](https://theinference.org/markets/companies/microsoft) and [Meta](https://theinference.org/markets/companies/meta) as key partners and one or two customers likely above 10% of revenue [7][4]. If the money slows, order books can hold while two balance sheets absorb the delay. The November 3 filing shows it first, in the commitments line, the margin guide and the switching commentary.

## Takeaway

The AI networking boom is showing up as $9.7 billion of locked-in parts orders and thinner margins at Arista and Cisco, just as insiders sold $740.8 million of Arista stock; the November 3 quarter shows who is right.

## Sources

1. [MarketBeat, "Arista Networks (NYSE:ANET) Stock Falls 5.1% - Should You Sell?", 15 October 2026](https://www.marketbeat.com/instant-alerts/price-arista-networks-nyse-anet-stock-falls-51-should-you-sell-2026-10-15/)
2. [ad-hoc-news.de, "Arista announces AI rack designs. Arista Networks stock trades at EUR 157.40", 18 October 2026](https://www.ad-hoc-news.de/boerse/news/corporate-news/arista-announces-ai-rack-designs-arista-networks-stock-trades-at-eur-157-40/70354359)
3. [Arista Networks Form 10-Q for the quarter ended 30 June 2026, US Securities and Exchange Commission, filed 5 August 2026](https://www.sec.gov/Archives/edgar/data/1596532/000159653226000175/anet-20260630.htm)
4. [Zacks Investment Research via The Globe and Mail, "ANET Q2 Earnings Call Centers on Supply Gains and 2026 Raise", 5 August 2026](https://www.theglobeandmail.com/investing/markets/stocks/ANET-N/pressreleases/3667117/anet-q2-earnings-call-centers-on-supply-gains-and-2026-raise/)
5. [Arista Networks, quarterly figures from its SEC filings (company series), retrieved 19 October 2026](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001596532)
6. [Cisco Systems, "Cisco Reports Fourth Quarter and Fiscal Year 2026 Earnings" (PR Newswire) via Finanznachrichten.de, 12 August 2026](https://www.finanznachrichten.de/nachrichten-2026-08/69299641-cisco-systems-inc-cisco-reports-fourth-quarter-and-fiscal-year-2026-earnings-008.htm)
7. [finanzen.net, "Netzwerk-Sektor im Blick: Aktien von Arista Networks und Cisco vor Zahlen", 19 October 2026](https://www.finanzen.net/nachricht/aktien/netzwerk-sektor-im-blick-aktien-von-arista-networks-und-cisco-vor-zahlen-wo-chancen-und-risiken-liegen-00-15987126)
8. [Computer Weekly, "Capital, not chips, may be the real brake on the AI build-out", 12 October 2026](https://www.computerweekly.com/news/366652046/Capital-not-chips-may-be-the-real-brake-on-the-AI-build-out)
9. [24/7 Wall St, "Broadcom Falls 4% as CEO Hock Tan's Capital Warning Hangs Over AI Chips; Marvell Drops 4%", 16 October 2026](https://247wallst.com/investing/2026/10/16/broadcom-falls-4-as-ceo-hock-tans-capital-warning-hangs-over-ai-chips-marvell-drops-4/)


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Arista faces a $9.7 billion parts bill after insiders sold $740.8 million of stock — The Inference. Canonical: https://theinference.org/article/arista-faces-a-9-7-billion-parts-bill-after-insiders-sold-740-8-million-of-stock