Arista director trust sells 8,000 shares under plan

Arista Networks director Charles Giancarlo reported that a family trust for which he is co‑trustee sold a total of 8,000 shares of Arista Networks common stock on February 2, 2026 under a pre‑established Rule 10b5‑1 trading plan.

Rhea-AI Filing Summary

Arista Networks director Charles Giancarlo reported that a family trust for which he is co‑trustee sold a total of 8,000 shares of Arista Networks common stock on February 2, 2026 under a pre‑established Rule 10b5‑1 trading plan.

The trust sales were executed in four blocks at weighted average prices of $138.9082, $140.2747, $141.0087 and $141.9373, with individual trades occurring between $138.52 and $142.41. After these transactions, the family trust held 9,784 shares indirectly for Giancarlo, and he also reported 221,578 shares held directly.

Insider Trade Summary

Net Seller: 8,000 shares

Net Sell 5 txns

Insider Giancarlo Charles H

Role Director

Sold 8,000 shs ($1.12M)

Type	Security	Shares	Price	Value
Sale	Common Stock	1,900	$138.9082	$264K
Sale	Common Stock	1,590	$140.2747	$223K
Sale	Common Stock	3,910	$141.0087	$551K
Sale	Common Stock	600	$141.9373	$85K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 9,784 shares (Indirect, by Trust); Common Stock — 221,578 shares (Direct)

Footnotes (6)

1. F1. This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 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 $138.52 to $139.44, 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 by a family trust for which the reporting person is co-trustee.
4. F4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $139.58 to $140.57, 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. F5. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $140.58 to $141.48, 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. F6. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $141.61 to $142.41, 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.

FAQ

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How many Arista Networks (ANET) shares were sold in this Form 4?

A family trust associated with director Charles Giancarlo sold a total of 8,000 Arista Networks common shares on February 2, 2026. The sales occurred in four transactions, all reported as indirect ownership "by Trust" on the Form 4.

Who executed the Arista Networks (ANET) stock sales reported here?

The sales were made by a family trust for which director Charles Giancarlo is co‑trustee. All transactions are reported as indirect ownership "by Trust," rather than as directly held shares, clarifying that the trust entity executed the trades.

At what prices were the Arista Networks (ANET) shares sold?

The reported weighted average sale prices were $138.9082, $140.2747, $141.0087, and $141.9373. Underlying trades occurred in multiple transactions between $138.52 and $142.41, as detailed in the footnotes to the Form 4 filing.

Was the Arista Networks (ANET) Form 4 trading under a Rule 10b5-1 plan?

Yes. The filing states the sale was effected under a Rule 10b5‑1 trading plan that the reporting person entered into on June 12, 2025. Such plans pre‑schedule trades, providing structure for selling shares over time.

How many Arista Networks (ANET) shares does the reporting person hold after these sales?

After the reported transactions, the family trust held 9,784 Arista Networks shares indirectly for Charles Giancarlo. Separately, he also reported 221,578 shares held directly, as shown in the Form 4 holdings table.

What is the ownership nature of the Arista Networks (ANET) shares sold?

All reported sales involve common stock held indirectly by a family trust for which Charles Giancarlo is co‑trustee. The Form 4 categorizes these as indirect ownership "by Trust," distinguishing them from his directly held share position.

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Accepted by SEC EDGAR 02/04/2026 - 06:58 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^*

Giancarlo Charles H

(Last) (First) (Middle)

5453 GREAT AMERICA PARKWAY

(Street)

SANTA CLARA CA 95054

(City) (State) (Zip)

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)

3. Date of Earliest Transaction (Month/Day/Year)
02/02/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

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

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	02/02/2026		S(1)		1,900	D	$138.9082(2)	15,884	I	by Trust(3)
Common Stock	02/02/2026		S(1)		1,590	D	$140.2747(4)	14,294	I	by Trust(3)
Common Stock	02/02/2026		S(1)		3,910	D	$141.0087(5)	10,384	I	by Trust(3)
Common Stock	02/02/2026		S(1)		600	D	$141.9373(6)	9,784	I	by Trust(3)
Common Stock								221,578	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

Explanation of Responses:

1. This sale was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on June 12, 2025.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $138.52 to $139.44, 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 by a family trust for which the reporting person is co-trustee.

4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $139.58 to $140.57, 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 $140.58 to $141.48, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $141.61 to $142.41, 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.

	By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Charles Giancarlo	02/04/2026
	** 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).
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