Arista (ANET) CTO exercises 30,000 options and executes Rule 10b5-1 sales
Rhea-AI Filing Summary
Kenneth Duda, President and CTO and a director of Arista Networks (ANET), reported transactions under a Rule 10b5-1 plan on 09/17/2025. He exercised a non-qualified stock option to acquire 30,000 shares at an exercise price of $3.515. Concurrently he sold multiple blocks of common stock in a series of transactions at weighted-average prices ranging from about $139.14 to $143.35, with individual sale lots shown and weighted-average prices disclosed. Following the reported transactions, direct beneficial ownership reflects 120,000 derivative shares exercisable and varying direct share counts. Substantial additional holdings are reported indirectly through children’s trusts, a foundation, GRATs, and family trusts with reported indirect share counts (for example 1,206,654 and 762,035 in certain vehicles).
Positive
- Exercise at low strike: Non-qualified option exercised at $3.515, enabling significant intrinsic gain before sales
- Use of Rule 10b5-1 plans: Transactions were effected under pre-established 10b5-1 plans, which provides an affirmative defense and procedural transparency
- Continued indirect ownership: Large indirect holdings retained in children’s trusts, foundation, GRATs, and family trusts, indicating ongoing economic interest
Negative
- Substantial sales: Multiple sizable dispositions across accounts reduced direct share counts, representing insider monetization
- Concentrated indirect holdings: Significant ownership through related trusts may complicate assessment of true free-float and control
Insights
TL;DR: Insider exercised options and sold sizable share blocks under 10b5-1 plans while retaining material indirect holdings via trusts and foundations.
The filing shows coordinated option exercise and systematic disposition of shares pursuant to Rule 10b5-1 plans entered March 13, 2025. Use of pre-established plans indicates transactions were planned and intended to provide an affirmative defense under Rule 10b5-1. The reporting person disclaims beneficial ownership for many shares held in trusts, yet maintains shared voting and investment control as co-trustee in some vehicles, which is relevant to governance and alignment with other shareholders.
TL;DR: Exercise at low strike cost followed by multiple sales at ~ $139–$143 suggests monetization of vested equity while preserving significant indirect stakes.
The non-qualified option exercise at $3.515 for 30,000 shares and immediate sales at weighted-average prices between $139.14 and $143.35 represent substantial realized proceeds per share relative to strike. Post-transaction holdings include 120,000 derivative shares exercisable and large indirect positions across family vehicles. For investors, this demonstrates insider liquidity-taking under pre-set plans while retaining economic exposure via trusts.
Insider Trade Summary
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Non-Qualified Stock Option (right to buy) | 30,000 | $0.00 | -- |
| Exercise | Common Stock | 30,000 | $3.515 | $105K |
| Sale | Common Stock | 965 | $139.1365 | $134K |
| Sale | Common Stock | 2,143 | $140.3482 | $301K |
| Sale | Common Stock | 16,247 | $141.3302 | $2.30M |
| Sale | Common Stock | 4,699 | $142.64 | $670K |
| Sale | Common Stock | 5,946 | $143.35 | $852K |
| Sale | Common Stock | 514 | $139.1365 | $72K |
| Sale | Common Stock | 1,142 | $140.3482 | $160K |
| Sale | Common Stock | 8,666 | $141.3302 | $1.22M |
| Sale | Common Stock | 2,506 | $142.64 | $357K |
| Sale | Common Stock | 3,172 | $143.35 | $455K |
| Sale | Common Stock | 321 | $139.1365 | $45K |
| Sale | Common Stock | 715 | $140.3482 | $100K |
| Sale | Common Stock | 5,415 | $141.3302 | $765K |
| Sale | Common Stock | 1,567 | $142.64 | $224K |
| Sale | Common Stock | 1,982 | $143.35 | $284K |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
Footnotes (1)
- The exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 13, 2025. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $138.67 to $139.57, 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 $139.72 to $140.71, 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 $140.72 to $141.71, 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 $141.72 to $142.64, 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 $142.73 to $143.35, 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 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 children on March 13, 2025. These shares are held in a trust for the benefit of a Child 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. The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 13, 2025 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee. These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee. Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts. Reporting person is the trustee of the Kenneth Duda Annuity Trusts. These shares are held by a family trust for which the reporting person is co-trustee. 1/60th of the shares subject to the option vested and became exercisable on April 1, 2017 and 1/60th of the shares subject to the option shall vested monthly thereafter.
