Assenagon Asset Management S.A. 13F: Adds $273M to ANET Stake
Assenagon Asset Management grew its holdings in Arista Networks by 64.8% during the period, bringing its total stake to over 3.4 million shares.
Reviewed by automated data checks against the source filing. How we make and check alerts
Assenagon Asset Management S.A. added 1,343,263 shares to its stake in Arista Networks, Inc. ($ANET), a 64.84% increase, according to a 13F filing with the SEC dated October 15, 2026. It reported 3,414,924 shares worth $695.24 million at the end of the quarter.
Since the filing, $ANET is down 4.6% to date (from the $185.58 close on Oct 15, 2026).
Find the original: Assenagon Asset Management S.A. 13F filings on SEC EDGAR
ANET
Arista Networks, Inc.
Key Points
- Assenagon Asset Management boosted its Arista Networks holdings by 64.8%, adding 1,343,263 shares to finish the period with 3,414,924 shares worth about $695.2 million.
- Arista Networks shares recently traded around $178.38, putting the stock down about 10.3% below its 50-day moving average.
- Several major institutional investors adjusted their positions, while top company insiders reported selling shares ahead of the filing.
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Not investment advice. EarningsIQ is not a registered investment adviser, and this automated Arista Networks, Inc. alert may contain errors. Disclosures
Assenagon Asset Management S.A. significantly expanded its investment in Arista Networks, Inc. (NYSE: ANET) during the period, according to a Form 13F filing with the SEC on October 15, 2026. Institutional filings look backward at portfolio choices made during the previous quarter, meaning this snapshot may not reflect the investor's current day-to-day holdings.
What Changed in Assenagon Asset Management's Arista Networks Position
Assenagon boosted its stake by 64.8%, adding 1,343,263 shares to its portfolio. The firm ended the quarter with a total of 3,414,924 shares. The reported value of the holding reached $695,244,377, up from its previous position of 2,071,661 shares.
Other Institutional Activity in Arista Networks
Other major financial institutions also tweaked their holdings in Arista Networks during the quarter. Blackrock Inc. reduced its holdings by 523,874 shares, ending with 91,383,843 shares worth about $16,173,112,143. Vanguard Capital Management LLC grew its holdings by 416,459 shares, ending with 68,688,349 shares worth about $12,156,463,712. State Street Corporation grew its holdings by 1,402,887 shares, ending with 48,165,803 shares worth about $8,524,383,609. FMR, LLC reduced its holdings by 4,958,868 shares, ending with 47,349,865 shares worth about $8,379,978,905. Geode Capital Management, LLC grew its holdings by 277,726 shares, ending with 27,505,753 shares worth about $4,867,968,048.
Arista Networks, Inc. Stock Down 8.7%
Arista Networks shares recently traded around $178.38 as of October 16, 2026. The stock sits about 10.3% below its 50-day moving average of $198.97, while holding about 10.0% above its 200-day moving average of $162.16. Over the past year, the networking hardware maker has traded as low as $114.52 and as high as $217.41.
Recent Earnings
Arista Networks reported trailing-twelve-month revenue of $10,540,800,000 alongside trailing earnings per share of $3.17. The company posted a net margin of 38.4% and a return on equity of 31.5%. Year-over-year revenue growth reached 37.7%. The company's next earnings report is scheduled for November 3, 2026.
Earnings drift grade
Outlook vs expectations on the last report — not price action.
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Forward outlook
5 target raises vs 1 cuts.
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EPS & revenue
EPS beat estimates by 5.8%. Revenue beat estimates by 1.7%.
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Profit surprise
EBITDA missed by 8 percent. Operating income missed by 6 percent.
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Pre-earnings setup
Bar was high, analysts already very bullish.
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Analyst signal
5 target raises, 1 target cut.
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Earnings quality
Gross margin down 1.8 points. Positive free cash flow.
Earnings Call Summary
The company reported strong momentum across all business segments in the first quarter, with revenue of 2.71 billion dollars, up 35 percent year over year and beating expectations of 2.67 billion dollars. Management highlighted three major AI fabric use cases: scale out with 100 plus customers at 800 gigabit Ethernet, scale up coming in 2027 at 1.6 terabit speeds, and scale across with customers like hyperscaler cloud titans. However, supply chain constraints are severe and expected to persist into next year, forcing the company to accept margin pressure to secure chips and memory for customers.
Guidance Arista raised full year revenue guidance to 11.5 billion dollars, up 27.7 percent from last year. They expect about 2.8 billion in sales for next quarter. AI fabrics revenue target was increased from 3.25 billion to 3.5 billion, and campus revenue is expected to reach 1.25 billion.
Fine but not compelling. Acceptable results that likely do not create a meaningful forward reset.
Insider Buying and Selling at Arista Networks, Inc.
Company insiders have been active sellers of Arista stock in recent weeks. On October 6, 2026, Chief Financial Officer Chantelle Yvette Breithaupt sold 1,224 shares at an average price of $215.00 for a total of $263,160.00. Chief Executive Officer Jayshree Ullal sold 460,374 shares for $97,642,614.00 on October 6, 2026. CEO and Chairperson Ullal Jayshree sold 130,553 shares under a pre-arranged Rule 10b5-1 plan on October 9, 2026, at an average price of $217.10, totaling $28,342,507.98. Jayshree Ullal also sold 158,543 shares for $34,417,690.00 on October 9, 2026.
Analysts Set New Price Targets
Wall Street firms have kept a generally upbeat view on the networking specialist. On August 5, 2026, UBS maintained its Buy rating while raising its price target to $259.00 from $187.00. On August 6, 2026, Barclays maintained its Overweight rating and lifted its target to $289.00 from $195.00. Deutsche Bank initiated coverage with a Buy rating and a $220.00 target on September 1, 2026. Bernstein initiated coverage with an Outperform rating and a $250.00 target on September 30, 2026. Citigroup maintained a Buy rating and raised its target to $248.00 from $215.00 on October 8, 2026. Arista currently holds a consensus recommendation of a strong buy from 29 analysts, with a mean price target of $245.14.
About Arista Networks
Arista Networks builds high-performance networking gear and software for large data centers, artificial intelligence clusters, and corporate campuses. Its Extensible Operating System powers routing and switching equipment used by major cloud providers and tech enterprises. Institutional interest remains high as the company capitalizes on infrastructure upgrades driven by artificial intelligence workloads.
Bottom Line
Investors will look toward Arista's upcoming earnings release on November 3, 2026, for updates on demand trends and supply chain health. Because 13F filings look backward at past quarters, market participants should view Assenagon's added stake as a record of earlier positioning rather than an immediate trade. Keep in mind that 13F filings are backward-looking: they show holdings as of the end of the reporting quarter and may not represent the fund's current position.
Related Filing Alerts
Source: Assenagon Asset Management S.A.'s 13F filing on $ANET (Oct 15, 2026). 13F filings show holdings as of the end of the reporting quarter and may not reflect the fund's current position. Find the original filing: Assenagon Asset Management S.A. 13F filings on SEC EDGAR. Written by software, not financial advice. How we make alerts