What prices were reported for the ANET share sales?

The reported weighted-average prices were $211.3602, $212.2662 and $213.0637 per share. The corresponding transaction-price ranges were $211.00 to $211.99, $212.03 to $213.025, and $213.03 to $213.22, inclusive.

Arista Networks CEO reports 460,374-share trust sales

Q: How many ANET shares were sold, and when?

Trust-held common shares totaling 460,374 were sold on October 6, 2026. The shares were reported through trusts for relatives of CEO and Chairperson Jayshree Ullal.

ANET's CEO and Chairperson shared voting and investment control over the child-benefit trusts while disclaiming beneficial ownership.

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Rhea-AI Filing Summary

Arista Networks, Inc. CEO and Chairperson Jayshree Ullal reported sales of 460,374 common shares held by trusts for relatives on October 6, 2026. The sales were made under a Rule 10b5-1 trading plan adopted November 14, 2025. Reported weighted-average prices were $211.3602, $212.2662 and $213.0637 per share, corresponding to transaction-price ranges of $211.00–$211.99, $212.03–$213.025 and $213.03–$213.22, inclusive.

Insights

Analyzing...

Insider Trade Summary 10b5-1

Net Seller: 460,374 shares

Net Sell 12 txns

Insider Ullal Jayshree

Role CEO and Chairperson

Sold 460,374 shs ($97.64M)

Type	Security	Shares	Price	Value
Sale	Common Stock ^{F1, F2, F3}	13,179	$211.3602	$2.79M
Sale	Common Stock ^{F1, F4, F3}	51,805	$212.2662	$11.00M
Sale	Common Stock ^{F1, F5, F3}	781	$213.0637	$166K
Sale	Common Stock ^{F1, F2, F3}	13,179	$211.3602	$2.79M
Sale	Common Stock ^{F1, F4, F3}	51,805	$212.2662	$11.00M
Sale	Common Stock ^{F1, F5, F3}	781	$213.0637	$166K
Sale	Common Stock ^{F6, F2, F7}	65,897	$211.3602	$13.93M
Sale	Common Stock ^{F6, F4, F7}	259,045	$212.2662	$54.99M
Sale	Common Stock ^{F6, F5, F7}	3,902	$213.0637	$831K
holding	Common Stock	--	--	--
holding	Common Stock ^F8	--	--	--
holding	Common Stock ^F8	--	--	--

Holdings After Transaction: Common Stock — 4,811,207 shares (Indirect, By Trust for Child 1); Common Stock — 4,811,207 shares (Indirect, By Trust for Child 2); Common Stock — 15,615,010 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 (8)

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.
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 $211.99, 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. 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.
F4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $212.03 to $213.025, 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 $213.03 to $213.22, 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 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.
F7. These shares are held by a family trust for which the reporting person is co-trustee.
F8. 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: 460,374 shares Weighted-average sale price: $211.3602 per share Weighted-average sale price: $212.2662 per share +4 more

7 metrics

Common shares sold 460,374 shares Trust-held shares sold on October 6, 2026

Weighted-average sale price $211.3602 per share Transaction prices ranged from $211.00 to $211.99, inclusive

Weighted-average sale price $212.2662 per share Transaction prices ranged from $212.03 to $213.025, inclusive

Weighted-average sale price $213.0637 per share Transaction prices ranged from $213.03 to $213.22, inclusive

Direct common shares reported 9,917 shares Reported on October 6, 2026

Common shares held in trust for nephew 25,000 shares Reported on October 6, 2026

Common shares held in trust for niece 25,000 shares Reported on October 6, 2026

Key Terms

Rule 10b5-1 trading plan, weighted average price, beneficial ownership, voting and investment control

4 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.

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.

voting and investment control regulatory

"shares voting and investment control over the shares"

FAQ

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

How many ANET shares were sold, and when?

Trust-held common shares totaling 460,374 were sold on October 6, 2026. The shares were reported through trusts for relatives of CEO and Chairperson Jayshree Ullal.

Were the ANET sales made under a Rule 10b5-1 plan?

Yes. The sales were made under a Rule 10b5-1 trading plan adopted November 14, 2025. The plan was entered into by Jayshree Ullal for the benefit of her relatives.

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 10/08/2026 - 07:18 PM Accepted by SEC EDGAR 10/08/2026 - 07:18 PM

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).

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)
10/06/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	10/06/2026		S⁽¹⁾		13,179	D	$211.3602⁽²⁾	4,863,793	I	By Trust for Child 1⁽³⁾
Common Stock	10/06/2026		S⁽¹⁾		51,805	D	$212.2662⁽⁴⁾	4,811,988	I	By Trust for Child 1⁽³⁾
Common Stock	10/06/2026		S⁽¹⁾		781	D	$213.0637⁽⁵⁾	4,811,207	I	By Trust for Child 1⁽³⁾
Common Stock	10/06/2026		S⁽¹⁾		13,179	D	$211.3602⁽²⁾	4,863,793	I	By Trust for Child 2⁽³⁾
Common Stock	10/06/2026		S⁽¹⁾		51,805	D	$212.2662⁽⁴⁾	4,811,988	I	By Trust for Child 2⁽³⁾
Common Stock	10/06/2026		S⁽¹⁾		781	D	$213.0637⁽⁵⁾	4,811,207	I	By Trust for Child 2⁽³⁾
Common Stock	10/06/2026		S⁽⁶⁾		65,897	D	$211.3602⁽²⁾	15,877,957	I	by Trust⁽⁷⁾
Common Stock	10/06/2026		S⁽⁶⁾		259,045	D	$212.2662⁽⁴⁾	15,618,912	I	by Trust⁽⁷⁾
Common Stock	10/06/2026		S⁽⁶⁾		3,902	D	$213.0637⁽⁵⁾	15,615,010	I	by Trust⁽⁷⁾
Common Stock								9,917	D
Common Stock								25,000	I	By Trust for Nephew⁽⁸⁾
Common Stock								25,000	I	By 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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

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 $211.99, 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 $212.03 to $213.025, 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 $213.03 to $213.22, 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 Ullal	10/08/2026
	** 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)

Source: View Original Filing on SEC EDGAR