Arista Networks (ANET) CEO’s family trusts pre-plan sale of 428,000 shares

Rhea-AI Filing Summary

Arista Networks, Inc. CEO and Chairperson Jayshree Ullal reported a series of open-market sales of common stock executed on April 22, 2026 through family-related trusts. In total, the Form 4 data shows 428,000 shares sold at weighted average prices of about $177.28 and $178.22 per share.

The shares were sold by trusts for Ullal’s children and other relatives, where she serves as trustee or co‑trustee and, for certain trusts, she disclaims beneficial ownership while sharing voting and investment control. The transactions were carried out under a pre‑arranged Rule 10b5‑1 trading plan adopted on November 14, 2025 for the benefit of her relatives.

Following these sales, the reported positions show multi‑million‑share holdings remaining in the family and children’s trusts, while Ullal also reports 9,917 shares held directly and 30,000 shares held indirectly in trusts for a niece and nephew.

Insights

Equity compensation and insider-trading analyst

Pre-planned family trust sales of 428,000 Arista shares; large indirect stake remains.

Jayshree Ullal, Arista’s CEO and Chairperson, reported open-market sales totaling 428,000 common shares on April 22, 2026. The reported weighted average prices were around $177.28 and $178.22 per share, indicating sizable but orderly dispositions.

The sales were executed by family and children’s trusts where Ullal is trustee or co‑trustee, and the disclosures note that she disclaims beneficial ownership of certain holdings even while sharing voting and investment control. A footnote states these transactions occurred under a Rule 10b5‑1 trading plan adopted on November 14, 2025, suggesting the timing was pre‑scheduled rather than reactive.

After the transactions, the filing still shows multi‑million‑share positions in the family and children’s trusts, plus 9,917 shares held directly and 30,000 shares in niece and nephew trusts. The combination of substantial remaining holdings and a pre‑planned trading program typically frames these sales as routine portfolio and estate management rather than a fundamental shift in insider exposure.

Insider Trade Summary 10b5-1

Net Seller: 428,000 shares ($75,944,314)

Net Sell 9 txns

Insider Ullal Jayshree

Role CEO and Chairperson

Sold 428,000 shs ($75.94M)

Type	Security	Shares	Price	Value
Sale	Common Stock	52,838	$177.2759	$9.37M
Sale	Common Stock	11,162	$178.2167	$1.99M
Sale	Common Stock	52,838	$177.2759	$9.37M
Sale	Common Stock	11,162	$178.2167	$1.99M
Sale	Common Stock	247,676	$177.2759	$43.91M
Sale	Common Stock	52,324	$178.2167	$9.33M
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 5,220,369 shares (Indirect, By Trust for Child 1); Common Stock — 9,917 shares (Direct, null)

Footnotes (1)

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. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $177.00 to $177.99, 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. 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. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $178.00 to $178.43, 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. 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. These shares are held by a family trust for which the reporting person is co-trustee. 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

Total shares sold: 428,000 shares Weighted average sale price 1: $177.2759 per share Weighted average sale price 2: $178.2167 per share +3 more

6 metrics

Total shares sold 428,000 shares Open-market sales on April 22, 2026 via family and children’s trusts

Weighted average sale price 1 $177.2759 per share One set of open-market sales on April 22, 2026

Weighted average sale price 2 $178.2167 per share Another set of open-market sales on April 22, 2026

Direct holdings after transactions 9,917 shares Common stock held directly by Jayshree Ullal after reported trades

Niece and nephew trusts holdings 30,000 shares Common stock held indirectly in trusts for niece and nephew

Rule 10b5-1 plan adoption date November 14, 2025 Pre-arranged trading plan governing these family-trust sales

Key Terms

Rule 10b5-1 trading plan, weighted average price, beneficial ownership, family trust, +1 more

5 terms

Rule 10b5-1 trading plan regulatory

"The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person"

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. These shares were sold in multiple transactions"

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 financial

"The reporting person shares voting and investment control over the shares but 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.

family trust financial

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

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

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).

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^*

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)
04/22/2026

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	04/22/2026		S(1)		52,838	D	$177.2759(2)	5,220,369	I	By Trust for Child 1(3)
Common Stock	04/22/2026		S(1)		11,162	D	$178.2167(4)	5,209,207	I	By Trust for Child 1(3)
Common Stock	04/22/2026		S(1)		52,838	D	$177.2759(2)	5,220,369	I	By Trust for Child 2(3)
Common Stock	04/22/2026		S(1)		11,162	D	$178.2167(4)	5,209,207	I	By Trust for Child 2(3)
Common Stock	04/22/2026		S(5)		247,676	D	$177.2759(2)	17,534,334	I	by Trust(6)
Common Stock	04/22/2026		S(5)		52,324	D	$178.2167(4)	17,482,010	I	by Trust(6)
Common Stock								9,917	D
Common Stock								30,000	I	By Trust for Nephew(7)
Common Stock								30,000	I	By Trust for Niece(7)

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. 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 $177.00 to $177.99, 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 $178.00 to $178.43, 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 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.

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

7. 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	04/24/2026
	** 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

How many Arista Networks (ANET) shares were sold in Jayshree Ullal’s latest Form 4?

The Form 4 reports open-market sales totaling 428,000 Arista Networks common shares. These sales were executed on April 22, 2026 by various family and children’s trusts associated with CEO Jayshree Ullal, rather than solely from her direct personal holdings.

What prices were received for the Arista Networks (ANET) shares sold by Ullal-related trusts?

The reported sales used weighted average prices of about $177.28 and $178.22 per share. Footnotes explain the shares were sold in multiple transactions within narrow ranges between $177.00–$177.99 and $178.00–$178.43, respectively, across the different sale entries.

Were Jayshree Ullal’s Arista Networks (ANET) share sales made under a Rule 10b5-1 plan?

Yes. The filing states the sales were effected pursuant to a Rule 10b5‑1 trading plan adopted on November 14, 2025. Such plans are pre‑arranged programs that schedule trades in advance, helping separate transaction timing from day‑to‑day market or company developments.

Do the Arista Networks (ANET) shares sold belong directly to CEO Jayshree Ullal?

The sold shares are held in family and children’s trusts where Ullal serves as trustee or co‑trustee. For certain trusts, the filing notes she shares voting and investment control but disclaims beneficial ownership, indicating the economic benefit is intended for her relatives.

How many Arista Networks (ANET) shares does Jayshree Ullal hold after these reported transactions?

After the reported trades, the filing shows Ullal holding 9,917 shares directly and 30,000 shares indirectly through trusts for a niece and nephew. In addition, multi‑million‑share positions remain in family and children’s trusts where she serves as trustee or co‑trustee.

What is the significance of weighted average pricing in Ullal’s Arista Networks (ANET) Form 4?

The filing reports a weighted average price for each sale line, meaning shares were sold in many trades within a price range. Footnotes note ranges like $177.00–$177.99 and commit to providing exact per‑trade breakdowns to the company, investors or regulators upon request.