STOCK TITAN

Arista Networks (NYSE: ANET) family trusts sell 242,422 shares

Filing Impact
(Very High)
Filing Sentiment
(Very Negative)
Form Type
4

Rhea-AI Filing Summary

Family and relatives’ trusts associated with Arista Networks, Inc. CEO and Chairperson Jayshree Ullal sold an aggregate of 242,422 shares of common stock on July 9, 2026 in open-market transactions at weighted average prices including $189.1767 per share, under a Rule 10b5-1 trading plan adopted on November 14, 2025. The shares are held in various trusts for the benefit of relatives and children, where Ullal serves as trustee or co-trustee and in several cases disclaims beneficial ownership, and substantial indirect trust holdings, including 17,429,659 and 5,197,202 shares, remain after these sales.

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Insider Ullal Jayshree
Role CEO and Chairperson
Sold 242,422 shs ($45.62M)
Type Security Shares Price Value
Sale Common Stock 12,005 $187.3122 $2.25M
Sale Common Stock 25,943 $188.5586 $4.89M
Sale Common Stock 164 $189.1767 $31K
Sale Common Stock 12,005 $187.3122 $2.25M
Sale Common Stock 25,943 $188.5586 $4.89M
Sale Common Stock 164 $189.1767 $31K
Sale Common Stock 52,351 $187.3122 $9.81M
Sale Common Stock 113,134 $188.5586 $21.33M
Sale Common Stock 713 $189.1767 $135K
holding Common Stock -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 5,197,202 shares (Indirect, By Trust for Child 1); Common Stock — 9,917 shares (Direct)
Footnotes (1)
  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 November 14, 2025. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $187.00 to $187.98, 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 $188.00 to $188.985, 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 $189.045 to $189.26, 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 November 14, 2025. 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.
Shares sold 242,422 shares Aggregate common stock sold in open-market transactions on July 9, 2026
Sale price (block 1) $189.1767 per share Weighted average price for one set of reported open-market sales
Sale price (block 2) $188.5586 per share Weighted average price for another set of reported open-market sales
Sale price (block 3) $187.3122 per share Weighted average price for additional reported open-market sales
Family trust holdings after sale 17,429,659 shares Common stock held by a family trust with Ullal as co-trustee following transactions
Child’s trust holdings after sale 5,197,202 shares Common stock held in trust for each child after the July 9, 2026 sales
Direct holdings 9,917 shares Common stock held directly by Jayshree Ullal as of the reported date
Trust holdings for niece or nephew 30,000 shares Common stock held in each trust for a niece and a nephew
Rule 10b5-1 trading plan regulatory
"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan"
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.
beneficial ownership regulatory
"disclaims beneficial ownership of the shares."
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
open-market sale market
"Sale in open market or private transaction"
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
co-trustee other
"These shares are held by a family trust for which the reporting person is co-trustee."
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FAQ

What insider stock activity did Arista Networks (ANET) report on July 9, 2026?

Arista Networks reported that family and relatives’ trusts associated with CEO Jayshree Ullal sold 242,422 shares of common stock on July 9, 2026. These were open-market sales executed under a Rule 10b5-1 trading plan adopted on November 14, 2025.

Who actually sold Arista Networks (ANET) shares in this Form 4 filing?

The reported sales were made by family and relatives’ trusts associated with CEO Jayshree Ullal, not by her individual account. Ullal serves as trustee or co-trustee, and for trusts benefiting children or relatives she disclaims beneficial ownership while sharing voting and investment control.

Were the Arista Networks (ANET) insider sales pre-planned under a Rule 10b5-1 plan?

Yes. The filing states the sales were effected under a Rule 10b5-1 trading plan adopted by Jayshree Ullal on November 14, 2025 for the benefit of her relatives. Such plans provide for pre-arranged trading according to predetermined instructions.

At what prices were the Arista Networks (ANET) shares sold in this insider transaction?

Reported weighted average sale prices included $189.1767, $188.5586, and $187.3122 per share. Footnotes add that individual trades occurred within ranges from $187.00–$187.98, $188.00–$188.985, and $189.045–$189.26, with full breakdowns available on request.

Does Jayshree Ullal beneficially own all Arista Networks (ANET) shares held in the reported trusts?

No. For trusts benefiting her children and other relatives, Ullal disclaims beneficial ownership of the shares, although she shares voting and investment control as trustee or co-trustee. A separate family trust identifies her as co-trustee without such a disclaimer.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Ullal Jayshree

(Last)(First)(Middle)
5453 GREAT AMERICA PARKWAY

(Street)
SANTA CLARA CALIFORNIA 95054

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Arista Networks, Inc. [ ANET ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
CEO and Chairperson
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/09/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock07/09/2026S(1)12,005D$187.3122(2)5,197,202IBy Trust for Child 1(3)
Common Stock07/09/2026S(1)25,943D$188.5586(4)5,171,259IBy Trust for Child 1(3)
Common Stock07/09/2026S(1)164D$189.1767(5)5,171,095IBy Trust for Child 1(3)
Common Stock07/09/2026S(1)12,005D$187.3122(2)5,197,202IBy Trust for Child 2(3)
Common Stock07/09/2026S(1)25,943D$188.5586(4)5,171,259IBy Trust for Child 2(3)
Common Stock07/09/2026S(1)164D$189.1767(5)5,171,095IBy Trust for Child 2(3)
Common Stock07/09/2026S(6)52,351D$187.3122(2)17,429,659Iby Trust(7)
Common Stock07/09/2026S(6)113,134D$188.5586(4)17,316,525Iby Trust(7)
Common Stock07/09/2026S(6)713D$189.1767(5)17,315,812Iby Trust(7)
Common Stock9,917D
Common Stock30,000IBy Trust for Nephew(8)
Common Stock30,000IBy Trust for Niece(8)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
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 November 14, 2025.
2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $187.00 to $187.98, 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.
3. 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.
4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $188.00 to $188.985, 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.
5. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $189.045 to $189.26, 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.
6. 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 November 14, 2025.
7. These shares are held by a family trust for which the reporting person is co-trustee.
8. 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.
By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Jayshree Ullal07/13/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)