Arista Networks (ANET) director gains 971 shares via RSU vest

Rhea-AI Filing Summary

Arista Networks director Lewis Chew reported a routine equity compensation event. On May 20, 2026, he exercised 971 restricted stock units, receiving 971 shares of Arista Networks common stock at a stated price of $0.00 per share. After this vesting-related conversion, he directly holds 31,232 shares of common stock. The RSUs were part of a grant made on May 30, 2025 that vests in quarterly installments beginning August 20, 2025.

Insider Trade Summary

971 shares exercised/converted

Mixed 2 txns

Insider CHEW LEWIS

Role null

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Unit-5	971	$0.00	--
Exercise	Common Stock	971	$0.00	--

Holdings After Transaction: Restricted Stock Unit-5 — 0 shares (Direct, null); Common Stock — 31,232 shares (Direct, null)

Footnotes (1)

1. Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. The reporting person was granted RSUs on May 30, 2025. 1/4th of the shares vest on August 20, 2025 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, or November 20.

Key Figures

RSUs exercised: 971 shares Shares acquired: 971 shares Post-transaction holdings: 31,232 shares +2 more

5 metrics

RSUs exercised 971 shares Restricted stock units converted to common stock on May 20, 2026

Shares acquired 971 shares Common stock received from RSU conversion

Post-transaction holdings 31,232 shares Common stock directly held by Lewis Chew after transaction

RSU grant date May 30, 2025 Grant date of the RSUs that vested into common stock

Initial vesting tranche 1/4 of shares First RSU vesting on August 20, 2025

Key Terms

Restricted Stock Unit, derivative security, vesting, market trading day

4 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.

derivative security financial

"transaction_code_description: 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.

vesting financial

"1/4th of the shares vest on August 20, 2025 and will continue to vest at the same rate 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.

market trading day financial

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

Form 4 Insider Transactions: What Each Field Means →

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^*

CHEW LEWIS

(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
	Officer (give title below)		Other (specify below)

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/20/2026		M		971	A	$0.0(1)	31,232	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Unit-5	$0.0(1)	05/20/2026		M			971	(2)	(2)	Common Stock	971	$0.0	0	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. The reporting person was granted RSUs on May 30, 2025. 1/4th of the shares vest on August 20, 2025 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, or November 20.

	By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Lewis Chew	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)

FAQ

What insider transaction did Arista Networks (ANET) director Lewis Chew report?

Lewis Chew reported exercising restricted stock units into common shares. On May 20, 2026, 971 RSUs converted into 971 shares of Arista Networks common stock, reflecting routine vesting of a prior equity grant rather than an open-market purchase or sale.

How many Arista Networks (ANET) shares did Lewis Chew acquire in this Form 4?

Lewis Chew acquired 971 shares of Arista Networks common stock through RSU conversion. Each restricted stock unit represented a right to receive one share upon vesting, so 971 units vested and converted into 971 shares as part of his equity compensation.

Did Lewis Chew sell any Arista Networks (ANET) shares in this filing?

No sales were reported in this filing. The Form 4 only shows an exercise or conversion of 971 restricted stock units into an equal number of Arista Networks common shares, with no open-market sale or disposition of stock disclosed in the transaction summary.

What are Lewis Chew’s Arista Networks (ANET) holdings after this RSU vesting?

Following the RSU conversion, Lewis Chew directly holds 31,232 shares of Arista Networks common stock. This figure reflects his position after receiving 971 shares from vested restricted stock units, as reported in the post-transaction holdings on the Form 4.

How do Lewis Chew’s Arista Networks (ANET) RSUs vest over time?

The RSUs were granted on May 30, 2025, with 25% vesting on August 20, 2025. The remaining shares vest in equal quarterly installments on the first market trading day on or after February 20, May 20, August 20, or November 20 each year.

What does each restricted stock unit represent for Arista Networks (ANET) insiders?

Each restricted stock unit represents a contingent right to receive one share of Arista Networks common stock upon vesting. When vesting conditions are satisfied on scheduled dates, RSUs convert into common shares, as seen with the 971 units exercised in this Form 4.