Arista Networks: Bechtolsheim trust sells 260K shares

The disclosed sales were made under a Rule 10b5-1 plan entered into on February 20, 2026.

Available on EDGAR 11/09/2026 - 07:07 PM EST Accepted by SEC EDGAR 11/09/2026 - 07:06 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Arista Networks, Inc. (ANET) 10% owner Andreas Bechtolsheim reported that a family trust for which he is trustee sold 260,000 shares of common stock in 14 transactions on November 5, 2026. The sales were effected pursuant to a Rule 10b5-1 trading plan Bechtolsheim entered into on February 20, 2026. Prices reported for individual transactions are weighted averages.

Insider Trade Summary 10b5-1

Net Seller: 260,000 shares

Net Sell 14 txns

Insider BECHTOLSHEIM ANDREAS

Role 10% Owner

Sold 260,000 shs ($43.02M)

Share of Position Sold 0.14%

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2, F3	8,775	$159.1067	$1.40M
Sale	Common Stock F1, F4, F3	18,582	$159.9196	$2.97M
Sale	Common Stock F1, F5, F3	21,923	$160.773	$3.52M
Sale	Common Stock F1, F6, F3	10,649	$161.7975	$1.72M
Sale	Common Stock F1, F7, F3	8,079	$162.823	$1.32M
Sale	Common Stock F1, F8, F3	9,522	$163.924	$1.56M
Sale	Common Stock F1, F9, F3	9,029	$164.8862	$1.49M
Sale	Common Stock F1, F10, F3	32,951	$166.0009	$5.47M
Sale	Common Stock F1, F11, F3	77,657	$166.8955	$12.96M
Sale	Common Stock F1, F12, F3	33,469	$167.8798	$5.62M
Sale	Common Stock F1, F13, F3	10,473	$168.8863	$1.77M
Sale	Common Stock F1, F14, F3	10,528	$169.9048	$1.79M
Sale	Common Stock F1, F15, F3	7,664	$170.8644	$1.31M
Sale	Common Stock F1, F16, F3	699	$171.4519	$120K

Holdings After Transaction: Common Stock — 180,015,156 shares (Indirect, by Trust)

Holdings Before and After: Common Stock, 180,275,156 to 180,015,156 shares (Indirect, by Trust)

Other Insiders: 3 other insiders reported open-market sales of this stock in the 30 days up to this filing.

Footnotes (16)

1. F1. 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. F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $158.35 to $159.3475, 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 a 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 $159.35 to $160.3475, 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 $160.355 to $161.3525, 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 $161.355 to $162.35, 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. F7. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.3575 to $163.34, 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. F8. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.36 to $164.355, 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. F9. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $164.38 to $165.37, 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.
10. F10. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.3975 to $166.39, 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.
11. F11. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.40 to $167.39, 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.
12. F12. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.40 to $168.39, 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.
13. F13. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.40 to $169.38, 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.
14. F14. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.40 to $170.395, 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.
15. F15. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.40 to $171.3925, 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.
16. F16. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.40 to $171.5475, 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: 260,000 shares Sale transactions: 14 transactions Weighted-average sale price: $159.1067 per share +1 more

4 metrics

Shares sold 260,000 shares Reported across transactions on November 5, 2026

Sale transactions 14 transactions Reported for November 5, 2026

Weighted-average sale price $159.1067 per share 8,775-share transaction on November 5, 2026

Weighted-average sale price $166.8955 per share 77,657-share transaction on November 5, 2026

Key Terms

Rule 10b5-1 trading plan, weighted average price, trustee

3 terms

Rule 10b5-1 trading plan regulatory

"pursuant to a Rule 10b5-1 trading plan"

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

"price reported in Column 4 is a weighted average price"

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.

trustee regulatory

"the reporting person is a trustee"

A trustee is a person or institution legally appointed to hold and manage assets or enforce an agreement on behalf of other people (beneficiaries). Think of a trustee as a neutral referee or custodian who must act in the beneficiaries’ best interests, follow the trust or contract rules, and handle distributions, recordkeeping and enforcement. Investors care because a trustworthy trustee protects their rights, ensures promised payments or remedies are delivered, and can influence recoveries if things go wrong.

FAQ

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

What weighted-average prices did the ANET family trust report?

For 8,775 shares, the reported weighted-average sale price was $159.1067 per share; for 77,657 shares, it was $166.8955 per share.

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

Form 4 Insider Transactions: What Each Field Means →

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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^*

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)
11/05/2026

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	11/05/2026		S(1)		8,775	D	$159.1067(2)	180,266,381	I	by Trust(3)
Common Stock	11/05/2026		S(1)		18,582	D	$159.9196(4)	180,247,799	I	by Trust(3)
Common Stock	11/05/2026		S(1)		21,923	D	$160.773(5)	180,225,876	I	by Trust(3)
Common Stock	11/05/2026		S(1)		10,649	D	$161.7975(6)	180,215,227	I	by Trust(3)
Common Stock	11/05/2026		S(1)		8,079	D	$162.823(7)	180,207,148	I	by Trust(3)
Common Stock	11/05/2026		S(1)		9,522	D	$163.924(8)	180,197,626	I	by Trust(3)
Common Stock	11/05/2026		S(1)		9,029	D	$164.8862(9)	180,188,597	I	by Trust(3)
Common Stock	11/05/2026		S(1)		32,951	D	$166.0009(10)	180,155,646	I	by Trust(3)
Common Stock	11/05/2026		S(1)		77,657	D	$166.8955(11)	180,077,989	I	by Trust(3)
Common Stock	11/05/2026		S(1)		33,469	D	$167.8798(12)	180,044,520	I	by Trust(3)
Common Stock	11/05/2026		S(1)		10,473	D	$168.8863(13)	180,034,047	I	by Trust(3)
Common Stock	11/05/2026		S(1)		10,528	D	$169.9048(14)	180,023,519	I	by Trust(3)
Common Stock	11/05/2026		S(1)		7,664	D	$170.8644(15)	180,015,855	I	by Trust(3)
Common Stock	11/05/2026		S(1)		699	D	$171.4519(16)	180,015,156	I	by Trust(3)

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 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 $158.35 to $159.3475, 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 $159.35 to $160.3475, 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 $160.355 to $161.3525, 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 $161.355 to $162.35, 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 $162.3575 to $163.34, 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 $163.36 to $164.355, 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 $164.38 to $165.37, 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.

10. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.3975 to $166.39, 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.

11. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.40 to $167.39, 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.

12. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.40 to $168.39, 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.

13. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $168.40 to $169.38, 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.

14. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.40 to $170.395, 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.

15. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.40 to $171.3925, 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.

16. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $171.40 to $171.5475, 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	11/09/2026
	** 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)