Arista Networks CEO Jayshree Ullal sells 62,622 shares

The shares were sold in multiple transactions at prices ranging from $211.00 to $211.79, inclusive.

Rhea-AI Filing Summary

Arista Networks, Inc. (ANET) CEO and Chairperson Jayshree Ullal reported sales of 62,622 common shares held through three trusts on September 25, 2026, at a weighted average price of $211.3957 per share. The two trusts for her children each sold 8,948 shares; a family trust sold 44,726 shares. Following the transactions, each child trust held 4,876,972 shares and the family trust held 15,943,854 shares. The sales were made pursuant to a Rule 10b5-1 trading plan adopted by Ullal on November 14, 2025; the child-trust plan was for the benefit of her relatives. Ullal serves as trustee for the child trusts and shares voting and investment control over those shares while disclaiming beneficial ownership; she is co-trustee of the family trust.

Insider Trade Summary 10b5-1

Net Seller: 62,622 shares

Net Sell 6 txns

Insider Ullal Jayshree

Role CEO and Chairperson

Sold 62,622 shs ($13.24M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2, F3	8,948	$211.3957	$1.89M
Sale	Common Stock F1, F2, F3	8,948	$211.3957	$1.89M
Sale	Common Stock F4, F2, F5	44,726	$211.3957	$9.45M
holding	Common Stock	--	--	--
holding	Common Stock F6	--	--	--
holding	Common Stock F6	--	--	--

Holdings After Transaction: Common Stock — 4,876,972 shares (Indirect, By Trust for Child 1); Common Stock — 4,876,972 shares (Indirect, By Trust for Child 2); Common Stock — 15,943,854 shares (Indirect, by Trust); Common Stock — 9,917 shares (Direct); Common Stock — 25,000 shares (Indirect, By Trust for Nephew); Common Stock — 25,000 shares (Indirect, By Trust for Niece)

Footnotes (6)

1. F1. 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. F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $211.00 to $211.79, 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. F3. 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. F4. 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.
5. F5. These shares are held by a family trust for which the reporting person is co-trustee.
6. F6. 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.

Key Figures

Common shares sold: 62,622 shares Weighted average sale price: $211.3957 per share Sale price range: $211.00 to $211.79 per share +4 more

7 metrics

Common shares sold 62,622 shares Three trust transactions on September 25, 2026

Weighted average sale price $211.3957 per share Sales on September 25, 2026

Sale price range $211.00 to $211.79 per share Multiple transactions

Shares sold by each child-benefit trust 8,948 shares September 25, 2026

Shares sold by family trust 44,726 shares September 25, 2026

Shares held by each child-benefit trust after transaction 4,876,972 shares Following the September 25, 2026 transactions

Shares held by family trust after transaction 15,943,854 shares Following the September 25, 2026 transaction

Key Terms

Rule 10b5-1 trading plan, weighted average price, disclaims beneficial ownership

3 terms

Rule 10b5-1 trading plan regulatory

"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.

disclaims beneficial ownership regulatory

"shares but disclaims beneficial ownership of the shares"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many ANET shares did Jayshree Ullal sell, and at what price?

Jayshree Ullal reported three trust transactions covering 62,622 Arista Networks common shares on September 25, 2026, at a weighted average price of $211.3957 per share. The shares were sold in multiple transactions from $211.00 to $211.79, inclusive, pursuant to a Rule 10b5-1 trading plan adopted on November 14, 2025.

What other ANET share positions were listed for Jayshree Ullal?

On September 25, 2026, listed positions also included 9,917 shares held directly and 25,000 shares each in trusts for a nephew and a niece. Ullal served as co-trustee of the latter trusts and shared voting and investment control over those shares while disclaiming beneficial ownership.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 09/29/2026 - 07:05 PM Accepted by SEC EDGAR 09/29/2026 - 07:04 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED 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)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CEO and Chairperson

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/25/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/25/2026		S(1)		8,948	D	$211.3957(2)	4,876,972	I	By Trust for Child 1(3)
Common Stock	09/25/2026		S(1)		8,948	D	$211.3957(2)	4,876,972	I	By Trust for Child 2(3)
Common Stock	09/25/2026		S(4)		44,726	D	$211.3957(2)	15,943,854	I	by Trust(5)
Common Stock								9,917	D
Common Stock								25,000	I	By Trust for Nephew(6)
Common Stock								25,000	I	By Trust for Niece(6)

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount 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 $211.00 to $211.79, 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 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.

5. These shares are held by a family trust for which the reporting person is co-trustee.

6. 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 Ullal	09/29/2026
	** Signature of Reporting Person	Date
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)