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Arista Networks builds the Ethernet switches and EOS software that keep hyperscale data centers moving at terabit speed—yet its regulatory disclosures hold details just as critical as its technology. From customer concentration in cloud giants to the cadence of new product releases, Arista Networks SEC filings reveal the data networking story behind the numbers.
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Arista Networks, Inc. (ANET) – Form 144 filing dated 27 June 2025
The notice discloses that President & CEO Jayshree Ullal, acting as trustee for The Ishan Nagpal Trust, intends to sell 8,724 common shares of Arista on or about 27 June 2025 through J.P. Morgan Securities LLC on the NYSE. The shares, originally obtained via stock-option exercise on 1 Jan 2013, carry an aggregate market value of $886,295. The filing cites shares outstanding of 1,255,921,431, implying the proposed sale represents an immaterial fraction of the float.
The form also lists insider dispositions over the preceding three months by multiple Ullal-related trusts and by Jayshree Ullal personally. In total, six separate sales between 26 June 2025 and the filing date amounted to 117,782 shares for gross proceeds of approximately $12.0 million. All dispositions appear to have been executed under Rule 144, and the filer affirms no possession of undisclosed material adverse information. A Rule 10b5-1 trading plan was adopted on 13 Dec 2024.
Key takeaways for investors:
- The CEO continues to reduce her personal and family-trust holdings, though the new sale is modest versus total ownership.
- Sales are covered by a pre-arranged 10b5-1 plan, limiting inference of timing-related concerns.
- No operational or financial performance data are provided; the filing is strictly a notice of proposed insider sale.
Arista Networks Form 144 filing discloses a proposed sale of securities by Jayshree Ullal, Officer and Director, through The Ishan Nagpal Trust. Key details:
- Proposed sale of 1,276 shares of common stock with aggregate market value of $124,193
- Sale to be executed through J.P. Morgan Securities LLC on NYSE, planned for June 26, 2025
- Shares originated from stock option exercises in 2013 and were transferred to the Trust between January-December 2013
- Sale is conducted under a Rule 10b5-1 trading plan adopted on December 13, 2024
- Total shares outstanding: 1,255,921,431
The filing confirms no material adverse information is known and unreported, and no other securities were sold by the insider in the past 3 months. This planned sale represents a minimal portion (approximately 0.0001%) of total outstanding shares.
Arista Networks insider trading notification: CEO Jayshree Ullal plans to sell 106,766 shares with an aggregate market value of $10,391,534 through J.P. Morgan Securities on the NYSE, scheduled for June 26, 2025.
The shares to be sold were acquired through multiple transactions:
- 12,000 shares via stock option exercise on 06/26/2025
- 24,042 shares from PSU vesting on 05/20/2025
- 70,724 shares from RSU grants (various dates between 2021-2023)
The sale is executed under a Rule 10b5-1 trading plan adopted on December 13, 2024. Some transactions will involve cashless option exercises within 3 months of filing. Notably, Ullal has made no other sales in the past 3 months. The filing confirms no knowledge of undisclosed material adverse information regarding Arista's operations.
Form 144 filing for Arista Networks, Inc. (ANET) discloses that Officer and Director Jayshree Ullal plans to sell shares under Rule 144. The notice, dated 26 June 2025, was filed by J.P. Morgan Securities LLC acting as agent and attorney-in-fact.
- Shares to be sold: 669,403 common shares
- Aggregate market value stated: 65,152,993 (currency not specified in the form)
- Approximate sale date: 26 June 2025 on the NYSE
- Broker: J.P. Morgan Securities LLC, 360 Madison Ave., New York, NY 10017
- Shares outstanding (as listed): 1,255,921,431
- Origin of shares: Stock-option exercises originally acquired on 01 Jan 2013 and later transferred to the 2000 Ullal Family Trust
- Rule 10b5-1 plan: Adoption date 13 Dec 2024
No other sales of Arista securities by Ullal were reported during the past three months. The filer represents that no undisclosed material adverse information is known. The transaction represents a sizable insider disposition but is executed under a pre-arranged 10b5-1 trading plan, providing regulatory compliance and signaling advance planning.
Arista Networks insider trading notification: CEO Jayshree Ullal plans to sell 127,580 shares with an aggregate market value of $12,417,361 through J.P. Morgan Securities. The sale is scheduled for June 26, 2025, on the NYSE.
Key details:
- Shares were originally acquired through stock option exercises in 2013
- Sale will be executed by The Adeeti Ullal Trust, with Jayshree Ullal as Trustee
- Transaction follows a Rule 10b5-1 trading plan adopted on December 13, 2024
- Current total shares outstanding: 1,255,921,431
The filing confirms no material adverse information is known by the seller and notes no other sales by the insider in the past 3 months. This planned sale represents approximately 0.01% of total outstanding shares.
Arista Networks insider trading notice: CEO Jayshree Ullal plans to sell 127,580 shares with an aggregate market value of $12,417,361 through J.P. Morgan Securities. The sale is scheduled for June 26, 2025, on the NYSE.
Key details:
- Shares were originally acquired through stock option exercises in 2013 and transferred to The Tarini Ullal Trust
- Sale is being conducted under a Rule 10b5-1 trading plan adopted on December 13, 2024
- Total outstanding shares: 1,255,921,431
- No other sales reported in the past 3 months by the seller
The Form 144 filing confirms the seller has no knowledge of undisclosed material adverse information regarding Arista Networks' operations. The transaction represents approximately 0.01% of total outstanding shares.
Arista Networks insider trading notification: CEO Jayshree Ullal plans to sell 1,276 shares of common stock valued at approximately $124,193 through J.P. Morgan Securities. The sale is scheduled for June 26, 2025 on the NYSE.
Key details:
- Shares were originally acquired through stock option exercise on January 1, 2013
- Sale will be executed by The Shriya Nagpal Trust, with Ullal as Trustee
- Trading plan adopted under Rule 10b5-1 on December 13, 2024
- No other sales reported by the insider in the past 3 months
- Total shares outstanding: 1,255,921,431
This planned sale represents a minimal portion (approximately 0.0001%) of Arista's total outstanding shares. The transaction follows a pre-established trading plan, suggesting routine portfolio management rather than a response to company-specific factors.
Arista Networks, Inc. (ANET) – Form 4 insider activity filed 06/20/2025
Chief Technology Officer & SVP of Software Engineering Kenneth Duda disclosed the exercise of 30,000 non-qualified stock options with a $3.515 strike price that were due to expire on 02/11/2026. All 30,000 exercised shares were immediately sold on 06/17/2025 under a pre-arranged Rule 10b5-1 trading plan adopted 03/13/2025.
- Direct account: 30,000 shares sold in five tranches between $90.6563-$94.327; direct holdings drop from 42,976 to 12,976 shares.
- Children’s trust: 16,000 shares sold across the same price bands; indirect holdings now 1,239,168 shares.
- Family foundation: 10,000 shares sold; foundation retains 592,400 shares.
Other indirect holdings remain unchanged: 750,000 shares in GRAT JD, 750,000 shares in GRAT KD, and 25,615 shares in a family trust. No new derivative grants or open-market purchases were reported.
The filing represents an aggregate sale of 56,000 shares (~0.18 % of ANET’s 312 m diluted shares outstanding). While the transactions are scheduled and partly charitable, the CTO’s direct stake has been reduced by roughly 70 %, which investors may interpret as profit-taking after substantial appreciation in the share price.
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