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

Yes. A footnote states the exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on February 20, 2026. Such pre-arranged plans schedule trades in advance, helping separate transaction timing from day-to-day market decisions.

Bechtolsheim (ANET) trust sells 220K Arista shares under 10b5-1 plan

Filing Impact

(Very High)

Filing Sentiment

(Very Negative)

Form Type

Rhea-AI Filing Summary

Arista Networks, Inc. major shareholder Andreas Bechtolsheim reported open-market sales of 220,000 shares of Common Stock on May 26, 2026. The transactions were executed indirectly through a family trust at prices ranging from $153.90 to $160.095 per share, based on weighted average prices disclosed.

According to the filing, these sales were carried out under a pre-arranged Rule 10b5-1 trading plan entered into by the reporting person on February 20, 2026. After the transactions, the family trust held 182,990,075 shares, while Bechtolsheim also held 413,848 shares directly.

Insights

Large Arista holder executes pre-planned 220,000-share sale via family trust.

Major shareholder Andreas Bechtolsheim, a more than ten percent owner of Arista Networks, Inc., reported that a family trust associated with him sold 220,000 shares of Common Stock on May 26, 2026. The sales occurred at prices between $153.90 and $160.095 per share, using weighted average pricing.

The filing specifies that these transactions were made under a pre-arranged Rule 10b5-1 trading plan entered on February 20, 2026, indicating the timing was scheduled in advance. After these sales, the family trust still held 182,990,075 shares and Bechtolsheim held 413,848 shares directly, so the reported sales represent a small portion of the overall position visible in this filing.

Insider Trade Summary 10b5-1

Net Seller: 220,000 shares ($34,508,850)

Net Sell 8 txns

Insider BECHTOLSHEIM ANDREAS

Role null

Sold 220,000 shs ($34.51M)

Type	Security	Shares	Price	Value
Sale	Common Stock	32,973	$154.4979	$5.09M
Sale	Common Stock	55,818	$155.349	$8.67M
Sale	Common Stock	34,960	$156.4915	$5.47M
Sale	Common Stock	11,535	$157.3363	$1.81M
Sale	Common Stock	47,035	$158.488	$7.45M
Sale	Common Stock	36,494	$159.2978	$5.81M
Sale	Common Stock	1,185	$160.0051	$190K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 182,990,075 shares (Indirect, by Trust); Common Stock — 413,848 shares (Direct, null)

Footnotes (1)

The exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on February 20, 2026. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $153.90 to $154.895, 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 by a family trust for which the reporting person is a trustee. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $154.90 to $155.89, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $155.90 to $156.895, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $156.90 to $157.895, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $157.90 to $158.895, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $158.90 to $159.89, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $159.905 to $160.095, 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.

Key Figures

Shares sold: 220,000 shares Sale price range: $153.90–$160.095 per share Trust holdings after sale: 182,990,075 shares +3 more

6 metrics

Shares sold 220,000 shares Total Common Stock sold on May 26, 2026

Sale price range $153.90–$160.095 per share Weighted average price ranges from multiple transactions

Trust holdings after sale 182,990,075 shares Indirect ownership by family trust following transactions

Direct holdings 413,848 shares Common Stock held directly after reported transactions

Transaction date May 26, 2026 Date of reported open-market sales

Sell transactions 7 sale entries Non-derivative open-market or private sales reported

Key Terms

Rule 10b5-1 trading plan, weighted average price, family trust, open-market sale, +1 more

5 terms

Rule 10b5-1 trading plan regulatory

"The exercise and/or 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.

family trust financial

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

ten percent owner regulatory

"is_ten_percent_owner": 1"

Form 4 Insider Transactions: What Each Field Means →

05/28/2026 - 07:09 PM

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^*

BECHTOLSHEIM ANDREAS

(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	X	10% Owner
Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/26/2026

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	05/26/2026		S⁽¹⁾		32,973	D	$154.4979⁽²⁾	182,990,075	I	by Trust⁽³⁾
Common Stock	05/26/2026		S⁽¹⁾		55,818	D	$155.349⁽⁴⁾	182,934,257	I	by Trust⁽³⁾
Common Stock	05/26/2026		S⁽¹⁾		34,960	D	$156.4915⁽⁵⁾	182,899,297	I	by Trust⁽³⁾
Common Stock	05/26/2026		S⁽¹⁾		11,535	D	$157.3363⁽⁶⁾	182,887,762	I	by Trust⁽³⁾
Common Stock	05/26/2026		S⁽¹⁾		47,035	D	$158.488⁽⁷⁾	182,840,727	I	by Trust⁽³⁾
Common Stock	05/26/2026		S⁽¹⁾		36,494	D	$159.2978⁽⁸⁾	182,804,233	I	by Trust⁽³⁾
Common Stock	05/26/2026		S⁽¹⁾		1,185	D	$160.0051⁽⁹⁾	182,803,048	I	by Trust⁽³⁾
Common Stock								413,848	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)

Explanation of Responses:

1. The exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on February 20, 2026.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $153.90 to $154.895, 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 a trustee.

4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $154.90 to $155.89, 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 $155.90 to $156.895, 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 $156.90 to $157.895, 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.

7. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $157.90 to $158.895, 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.

8. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $158.90 to $159.89, 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.

9. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $159.905 to $160.095, 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: Andreas Bechtolsheim	05/28/2026
	** 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

FAQ

What insider transaction did Andreas Bechtolsheim report for Arista Networks (ANET)?

Andreas Bechtolsheim reported that a family trust associated with him sold 220,000 shares of Arista Networks Common Stock on May 26, 2026. These were open-market sales at weighted average prices between $153.90 and $160.095 per share, according to the Form 4 filing.

At what prices were the Arista Networks (ANET) shares sold in Bechtolsheim’s May 26, 2026 trades?

The filing shows weighted average sale prices ranging from $153.90 to $160.095 per share. Multiple transactions occurred within narrower bands in this overall range, and the reporting person agreed to provide detailed trade breakdowns upon request to the company, investors, or the SEC staff.

How many Arista Networks (ANET) shares does the family trust hold after the reported sales?

Following the May 26, 2026 transactions, the family trust associated with Andreas Bechtolsheim held 182,990,075 shares of Arista Networks Common Stock. The filing also shows he held 413,848 shares directly, providing a snapshot of both indirect and direct ownership after these trades.

Are the Arista Networks (ANET) shares in the Form 4 held directly by Andreas Bechtolsheim or through a trust?

The Form 4 reports both. One entry shows 413,848 Arista Networks shares held directly by Andreas Bechtolsheim. Separate entries show sales and resulting holdings for 182,990,075 shares held indirectly by a family trust, for which he serves as a trustee, according to a footnote.