Arista Networks director exercises 971 RSUs

Arista Networks director Charles H. Giancarlo reported routine equity compensation activity involving restricted stock units (RSUs).

Rhea-AI Filing Summary

Arista Networks director Charles H. Giancarlo reported routine equity compensation activity involving restricted stock units (RSUs). On May 20, 2026, RSUs covering 971 shares of Arista Networks common stock were exercised at $0.00 per share, converting into the same number of common shares held directly.

After this transaction, Giancarlo holds 971 common shares directly and 208,333 common shares indirectly through a family trust for which he serves as co‑trustee. A footnote explains that each RSU represents a right to receive one share upon vesting and describes a quarterly vesting schedule beginning in 2025.

Insider Trade Summary

971 shares exercised/converted

Exercise 3 txns

Insider Giancarlo Charles H

Role Director

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Unit-6	971	$0.00	$0.00
Exercise	Common Stock	971	$0.00	$0.00
holding	Common Stock	--	--	--

Holdings After Transaction: Restricted Stock Unit-6 — 0 contracts (Direct); Common Stock — 971 shares (Direct); Common Stock — 208,333 shares (Indirect, by Trust)

Footnotes (3)

1. F1. Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting.
2. F2. These shares are held by a family trust for which the reporting person is co-trustee.
3. F3. 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 Exercise price: $0.00 per share Direct holdings after transaction: 971 shares +3 more

6 metrics

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

Exercise price $0.00 per share Price per share for RSU conversion to common stock

Direct holdings after transaction 971 shares Arista Networks common stock held directly by Giancarlo

Indirect holdings via trust 208,333 shares Common stock held indirectly by family trust where Giancarlo is co‑trustee

RSU grant date May 30, 2025 Grant date of RSUs described in the footnote

Initial vest date August 20, 2025 One quarter of RSU shares scheduled to vest on this date

Key Terms

Restricted Stock Unit, family trust, co-trustee, quarterly vest date, +1 more

5 terms

Restricted Stock Unit financial

"Each restricted stock unit represents a contingent right to receive one share..."

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.

family trust financial

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

co-trustee financial

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

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."

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.

FAQ

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

What insider transaction did Charles H. Giancarlo report at Arista Networks (ANET)?

Charles H. Giancarlo reported an RSU-related transaction converting 971 restricted stock units into 971 shares of Arista Networks common stock. This was recorded as an exercise of a derivative security, not an open-market purchase or sale.

How many Arista Networks (ANET) shares does Charles H. Giancarlo hold after this Form 4?

After the reported transactions, Charles H. Giancarlo holds 971 Arista Networks common shares directly and 208,333 shares indirectly through a family trust. The trust position is noted as being held by a family trust for which he is co‑trustee.

Was the Arista Networks (ANET) Form 4 a buy or sell by Charles H. Giancarlo?

The Form 4 reflects an exercise of restricted stock units, categorized as an acquisition via derivative exercise. There were no open-market purchases or sales reported, only the conversion of 971 RSUs into common stock at an exercise price of $0.00 per share.

What are the terms of Charles H. Giancarlo’s Arista Networks (ANET) RSU grant?

A footnote states Giancarlo was granted RSUs on May 30, 2025. One quarter of the shares vest on August 20, 2025, with additional portions vesting on each quarterly vest date thereafter, which falls on the first trading day on or after February 20, May 20, August 20, or November 20.

How many RSUs did Charles H. Giancarlo exercise in this Arista Networks (ANET) filing?

He exercised 971 restricted stock units, each representing a contingent right to receive one share of Arista Networks common stock. Following this exercise, the RSU line in the filing shows zero units remaining associated with this particular RSU entry.

How are Charles H. Giancarlo’s indirect Arista Networks (ANET) holdings structured?

The filing shows 208,333 Arista Networks common shares held indirectly “by Trust.” A footnote clarifies these shares are held by a family trust for which Giancarlo serves as co‑trustee, indicating they are recorded as indirect beneficial ownership.

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

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Accepted by SEC EDGAR 05/22/2026 - 06:47 PM EDT 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).

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^*

Giancarlo Charles H

(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)	971	D
Common Stock								208,333	I	by Trust(2)

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-6	$0.0(1)	05/20/2026		M			971	(3)	(3)	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. These shares are held by a family trust for which the reporting person is co-trustee.

3. 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: Charles Giancarlo	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)