Arista Networks insider sales: Ullal reports multiple dispositions at $143–$145
Rhea-AI Filing Summary
Jayshree Ullal, CEO, Chairperson and director of Arista Networks (ANET), reported multiple sales of Arista common stock on 09/05/2025 pursuant to a Rule 10b5-1 trading plan adopted December 13, 2024. The Form 4 lists several block sales executed at weighted-average prices in three ranges: $143.00–$143.9966, $144.00–$144.9998 and $145.00–$145.3851. Specific reported dispositions include lots of 33,010; 24,122; 3,413; 173,204; 126,563; and 17,907 shares, among others, with post-transaction beneficial ownership figures shown for related trusts (examples: 5,590,711; 5,566,589; 20,335,778; 20,209,215). Many shares are held in trusts for the reporting person’s children, relatives or family trusts where Ullal serves as trustee or co-trustee and disclaims beneficial ownership. The filing was signed by an attorney-in-fact on behalf of Ullal on 09/09/2025.
Positive
- Sales executed under a documented Rule 10b5-1 trading plan, indicating prearranged and orderly dispositions
- Filing discloses weighted-average price ranges and offers to provide per-price sale breakdowns upon request
- Post-transaction beneficial ownership reported for trusts, supporting transparency
Negative
- Significant insider share dispositions by the CEO on 09/05/2025 (multiple large tranches reported)
- Concentrated holdings remain in family and related trusts, which can maintain insider influence despite sales
Insights
TL;DR: CEO sold multiple share blocks under a prearranged 10b5-1 plan; holdings remain substantial post-sales.
The Form 4 documents systematic dispositions by Jayshree Ullal on 09/05/2025 executed under a 10b5-1 plan adopted December 13, 2024. Sales occurred in multiple tranches at weighted-average prices in three defined ranges near $143–$145. Despite the dispositions, the filing shows large residual holdings held in various family and trust structures with post-transaction balances in the millions of shares. For investors, this is a routine, preplanned liquidity event rather than an ad-hoc insider sale; materiality depends on total insider ownership relative to market float, which is not shown in this filing.
TL;DR: Transactions follow a documented 10b5-1 plan and trusts; disclosure meets Form 4 requirements but highlights concentrated insider holdings.
The filing discloses that sales were executed pursuant to a Rule 10b5-1 trading plan and provides weighted-average price ranges and share counts. The disclosure that the reporting person serves as trustee or co-trustee and disclaims beneficial ownership for certain trust-held shares is appropriate and customary. The document is transparent about the plan date and provides the undertaking to supply per-price sale breakdowns on request, which strengthens compliance and disclosure quality.
Insider Trade Summary
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Common Stock | 33,010 | $143.2081 | $4.73M |
| Sale | Common Stock | 24,122 | $144.5372 | $3.49M |
| Sale | Common Stock | 3,413 | $145.0951 | $495K |
| Sale | Common Stock | 33,010 | $143.2081 | $4.73M |
| Sale | Common Stock | 24,122 | $144.5372 | $3.49M |
| Sale | Common Stock | 3,413 | $145.0951 | $495K |
| Sale | Common Stock | 173,204 | $143.2081 | $24.80M |
| Sale | Common Stock | 126,563 | $144.5372 | $18.29M |
| Sale | Common Stock | 17,907 | $145.0951 | $2.60M |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
Footnotes (1)
- The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person for the benefit of the reporting person's relatives on December 13, 2024. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $143.00 to $143.9966, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. These shares are held in trust for the benefit of the children of the reporting person for which the reporting person serves as trustee. The reporting person shares voting and investment control over the shares but disclaims beneficial ownership of the shares. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $144.00 to $144.9998, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $145.00 to $145.3851, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The exercises and/or sales reported on this Form 4 were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 13, 2024. These shares are held by a family trust for which the reporting person is co-trustee. These shares are held in trust for the benefit of relatives of the reporting person for which the reporting person serves as co-trustee. The reporting person shares voting and investment control over the shares but disclaims beneficial ownership of the shares.
