Arista Networks CTO exercises options, sells 58,000 shares
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Form Type
4
Rhea-AI Filing Summary
Arista Networks President and CTO Kenneth Duda exercised a Non-Qualified Stock Option for 32,000 shares of common stock on May 18, 2026 at an exercise price of $15.2625 per share, then sold an aggregate 58,000 shares in multiple open‑market or private transactions at weighted‑average prices described in ranges between $138.77 and $143.27 per share.
The disclosure states that these transactions, including sales by a Children’s Trust benefiting his children and by a 501(c) foundation where he and his spouse are co‑trustees, were effected under Rule 10b5-1 trading plans adopted on March 13, 2025. After these trades he holds 12,976 shares directly, 1,063,168 shares indirectly through a Children’s Trust and 482,400 shares indirectly through a foundation, in addition to other trust interests.
Insider Trade Summary 10b5-1
Exercise and sale activity reported; no spread calculated
Exercise and Sale
20 txns
Insider
Duda Kenneth
Role
President and CTO
Sold
58,000 shs ($8.12M)
Approx. gross sale proceeds
$8.12M
Approx. exercise cost
$488K
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Non-Qualified Stock Option (right to buy) | 32,000 | $0.00 | $0.00 |
| Exercise | Common Stock | 32,000 | $15.2625 | $488K |
| Sale | Common Stock | 14,501 | $139.4094 | $2.02M |
| Sale | Common Stock | 12,405 | $140.1325 | $1.74M |
| Sale | Common Stock | 3,081 | $141.3356 | $435K |
| Sale | Common Stock | 1,103 | $142.335 | $157K |
| Sale | Common Stock | 910 | $143.2324 | $130K |
| Sale | Common Stock | 7,251 | $139.4094 | $1.01M |
| Sale | Common Stock | 6,202 | $140.1325 | $869K |
| Sale | Common Stock | 1,540 | $141.3356 | $218K |
| Sale | Common Stock | 552 | $142.335 | $79K |
| Sale | Common Stock | 455 | $143.2324 | $65K |
| Sale | Common Stock | 4,532 | $139.4094 | $632K |
| Sale | Common Stock | 3,876 | $140.1325 | $543K |
| Sale | Common Stock | 963 | $141.3356 | $136K |
| Sale | Common Stock | 345 | $142.335 | $49K |
| Sale | Common Stock | 284 | $143.2324 | $41K |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
Holdings After Transaction:
Non-Qualified Stock Option (right to buy) — 0 contracts (Direct);
Common Stock — 12,976 shares (Direct);
Common Stock — 1,063,168 shares (Indirect, By Childrens' Trust);
Common Stock — 482,400 shares (Indirect, By Foundation);
Common Stock — 702,147 shares (Indirect, By GRAT JD);
Common Stock — 702,147 shares (Indirect, By GRAT KD);
Common Stock — 201,134 shares (Indirect, by Trust)
Footnotes (14)
- F1. 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.
- F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $138.77 to $139.76, 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.
- F3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $139.78 to $140.77, 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.
- F4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $140.84 to $141.80, 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.
- F5. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $141.87 to $142.72, 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.
- F6. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $142.94 to $143.27, 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.
- F7. 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.
- F8. 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.
- F9. 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.
- F10. These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.
- F11. Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.
- F12. Reporting person is the trustee of the Kenneth Duda Annuity Trusts.
- F13. These shares are held by a family trust for which the reporting person is co-trustee.
- F14. 1/48th of the shares subject to the option shall vest and become exercisable on June 1, 2020 and 1/48th of the shares subject to the option shall continue to vest each month thereafter.
Key Figures
Options exercised: 32,000 shares
Shares sold: 58,000 shares
Example sale price: $139.4094 per share
+3 more
6 metrics
Options exercised
32,000 shares
Non-Qualified Stock Option exercised on May 18, 2026 at $15.2625 per share
Shares sold
58,000 shares
Aggregate Arista Networks common shares sold in multiple transactions on May 18, 2026
Example sale price
$139.4094 per share
One tranche of common stock sold at a reported weighted-average price
Direct holdings
12,976 shares
Direct common stock held by Kenneth Duda after the reported transactions
Children’s Trust holdings
1,063,168 shares
Indirect Arista Networks shares held through a Children’s Trust post-transaction
Foundation holdings
482,400 shares
Indirect Arista Networks shares held through a 501(c) foundation post-transaction
Key Terms
Non-Qualified Stock Option, Rule 10b5-1 trading plan, weighted average price, GRAT
4 terms
Non-Qualified Stock Option financial
"exercised a Non-Qualified Stock Option for 32,000 shares"
A non-qualified stock option (NSO) is a contract that lets an employee or service provider buy company shares at a fixed price for a set period, like a voucher to purchase stock later at today’s price. It matters to investors because exercising NSOs creates ordinary income for the holder and can increase share count, affecting a company’s earnings and ownership mix; think of it as a future sale that can dilute existing shareholders and has immediate tax consequences for the recipient.
Rule 10b5-1 trading plan regulatory
"effected pursuant to a Rule 10b5-1 trading plan entered into"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average price financial
"The price reported in Column 4 is a weighted average price"
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
GRAT financial
"nature_of_ownership"By GRAT JD""
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What did Arista Networks (ANET) insider Kenneth Duda report in this Form 4?
Kenneth Duda, Arista Networks’ President and CTO, exercised 32,000 stock options at $15.2625 and sold 58,000 common shares on May 18, 2026 through multiple transactions, some carried out via family trusts and a charitable foundation.
Were Kenneth Duda’s ANET transactions made under a Rule 10b5-1 plan?
Yes. The disclosure notes that the option exercise and related share sales were effected under Rule 10b5-1 trading plans adopted on March 13, 2025, including separate plans involving a Children’s Trust and a 501(c) charitable foundation associated with Duda.
What are Kenneth Duda’s remaining direct ANET holdings after these trades?
After these transactions, Kenneth Duda directly owns 12,976 shares of Arista Networks common stock, based on the reported post-transaction holdings, alongside substantial indirect interests held through a Children’s Trust, a charitable foundation and other family trust structures.
What stock option grant did Kenneth Duda exercise in this ANET filing?
He exercised a Non-Qualified Stock Option covering 32,000 shares of Arista Networks common stock at an exercise price of $15.2625 per share. Footnotes indicate the option vested monthly, with 1/48th of the shares vesting starting June 1, 2020.
AI-generated analysis. How Rhea-AI works. Not financial advice.
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