Arista CFO exercises RSUs, shares withheld for taxes

Arista Networks, Inc. Senior Vice President and CFO Chantelle Yvette Breithaupt reported routine equity compensation activity involving restricted stock units that converted into common shares.

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Form Type

Rhea-AI Filing Summary

Arista Networks, Inc. Senior Vice President and CFO Chantelle Yvette Breithaupt reported routine equity compensation activity involving restricted stock units that converted into common shares. She exercised derivative awards covering 12,266 shares of common stock, reflecting the vesting of restricted stock units.

To cover tax withholding obligations on this vesting, 6,144 common shares were disposed of at an indicated price of $141.58 per share, a non‑market tax-withholding disposition. Following these transactions, she directly holds 73,000 shares of Arista Networks common stock, with vesting continuing on specified quarterly vest dates.

Insider Trade Summary

12,266 shares exercised/converted

Exercise 5 txns

Insider Breithaupt Chantelle Yvette

Role Senior Vice President, CFO

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Unit-1	10,916	$0.00	$0.00
Exercise	Restricted Stock Unit-2	1,350	$0.00	$0.00
Exercise	Common Stock	10,916	$0.00	$0.00
Exercise	Common Stock	1,350	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	6,144	$141.58	$870K

Holdings After Transaction: Restricted Stock Unit-1 — 76,424 contracts (Direct); Restricted Stock Unit-2 — 18,900 contracts (Direct); Common Stock — 66,856 shares (Direct)

Footnotes (4)

F1. Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting.
F2. Represents shares withheld to satisfy tax withholding obligations on the vesting of restricted stock units.
F3. Twenty five percent (25%) of the restricted stock units awarded vested on Feb 20, 2025 and will continue to vest at a rate of six and one-quarter percent (6.25%) each quarter on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20 or November 20 of each year.
F4. Six and one-quarter percent (6.25%) of the restricted stock units awarded vest on February 20, 2026 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, and November 20 of each year.

Key Figures

RSU-derived common shares: 12,266 shares Shares withheld for taxes: 6,144 shares Tax withholding price: $141.58 per share +5 more

8 metrics

RSU-derived common shares 12,266 shares Common stock received from RSU exercises on May 20, 2026

Shares withheld for taxes 6,144 shares Tax-withholding disposition at $141.58 per share

Tax withholding price $141.58 per share Value used for shares withheld to satisfy tax obligations

Direct holdings after transactions 73,000 shares Common stock directly owned by CFO after Form 4 activity

RSU-1 shares converted 10,916 shares Restricted Stock Unit-1 conversion into common stock

RSU-2 shares converted 1,350 shares Restricted Stock Unit-2 conversion into common stock

Quarterly vesting rate 6.25% Portion of certain RSU awards vesting each quarterly vest date

Initial vesting tranche 25% Portion of one RSU award that vested on February 20, 2025

Key Terms

restricted stock unit, tax withholding obligations, derivative security, quarterly vest date, +1 more

5 terms

restricted stock unit financial

"Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting."

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

tax withholding obligations financial

"Represents shares withheld to satisfy tax withholding obligations on the vesting of restricted stock units."

derivative security financial

"Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

quarterly vest date financial

"A quarterly vest date is the first market trading day on or after February 20, May 20, August 20 or November 20 of each year."

vesting financial

"will continue to vest at a rate of six and one-quarter percent (6.25%) each quarter on each quarterly vest date thereafter."

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

FAQ

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What did Arista Networks (ANET) CFO Chantelle Breithaupt report in this Form 4?

The CFO reported routine equity compensation activity. Restricted stock units converted into 12,266 common shares, and 6,144 shares were withheld to cover taxes. After these transactions, she directly holds 73,000 Arista Networks common shares.

How many Arista Networks (ANET) shares were withheld for taxes in this filing?

A total of 6,144 common shares were withheld to satisfy tax withholding obligations. This tax-withholding disposition is coded as an F transaction and is not an open-market sale, but shares delivered to cover required tax liabilities.

How many Arista Networks (ANET) shares did the CFO acquire through RSU vesting?

The CFO exercised derivative awards tied to restricted stock units for 12,266 common shares. These transactions are coded M, reflecting the conversion of RSUs into common stock as they vested under the company’s equity compensation arrangements.

What is Chantelle Breithaupt’s direct Arista Networks (ANET) shareholding after the Form 4 transactions?

After the reported transactions, Chantelle Breithaupt directly holds 73,000 shares of Arista Networks common stock. This figure reflects her position following both the RSU conversions into common shares and the shares withheld to cover tax obligations.

How do the Arista Networks (ANET) restricted stock units vest for the CFO’s awards?

One RSU award vested 25% on February 20, 2025 and continues at 6.25% each quarterly vest date. Another vests 6.25% on February 20, 2026 and then on each quarterly vest date tied to February, May, August, and November.

Is the Form 4 for Arista Networks (ANET) CFO a market buy or sell of shares?

The filing does not show open-market buys or sells. It records RSU conversions into common shares and a tax-withholding disposition of 6,144 shares, where shares were delivered to cover tax liabilities associated with vesting.

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

Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 05/22/2026 - 06:48 PM EDT

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^*

Breithaupt Chantelle Yvette

(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)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Senior Vice President, CFO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/20/2026

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	05/20/2026		M		10,916	A	$0.0⁽¹⁾	71,650	D
Common Stock	05/20/2026		M		1,350	A	$0.0⁽¹⁾	73,000	D
Common Stock	05/20/2026		F⁽²⁾		6,144	D	$141.58	66,856	D

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)
Restricted Stock Unit-1	$0.0⁽¹⁾	05/20/2026		M			10,916	⁽³⁾	⁽³⁾	Common Stock	10,916	$0.0	76,424	D
Restricted Stock Unit-2	$0.0⁽¹⁾	05/20/2026		M			1,350	⁽⁴⁾	⁽⁴⁾	Common Stock	1,350	$0.0	18,900	D

Explanation of Responses:

1. Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting.

2. Represents shares withheld to satisfy tax withholding obligations on the vesting of restricted stock units.

3. Twenty five percent (25%) of the restricted stock units awarded vested on Feb 20, 2025 and will continue to vest at a rate of six and one-quarter percent (6.25%) each quarter on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20 or November 20 of each year.

4. Six and one-quarter percent (6.25%) of the restricted stock units awarded vest on February 20, 2026 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, and November 20 of each year.

	By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Chantelle Breithaupt	05/22/2026
	** 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