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  4. [Form 4] Arista Networks, Inc. Insider Trading Activity

Arista Networks insider sells 411,848 shares

Arista Networks, Inc. major shareholder Andreas Bechtolsheim reported multiple open-market sales of common stock on August 6, 2026.

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Form Type
4

Rhea-AI Filing Summary

Arista Networks, Inc. major shareholder Andreas Bechtolsheim reported multiple open-market sales of common stock on August 6, 2026. He sold a total of 411,848 shares in 16 transactions at weighted average prices roughly between $189.44 and $196.93, some directly and some through a family trust. These sales were effected pursuant to a Rule 10b5-1 trading plan entered into on February 20, 2026.

Insider BECHTOLSHEIM ANDREAS
Role 10% Owner
Sold 411,848 shs ($79.38M)
Type Security Shares Price Value
Sale Common Stock F1, F2 2,015 $190.0053 $383K
Sale Common Stock F1, F3 5,534 $190.8738 $1.06M
Sale Common Stock F1, F4 37,099 $192.1176 $7.13M
Sale Common Stock F1, F5 50,337 $192.8649 $9.71M
Sale Common Stock F1, F6 8,162 $193.8308 $1.58M
Sale Common Stock F1, F7 3,185 $194.8603 $621K
Sale Common Stock F1, F8 4,443 $195.8569 $870K
Sale Common Stock F1, F9 1,073 $196.6015 $211K
Sale Common Stock F1, F10, F11 4,983 $190.0661 $947K
Sale Common Stock F1, F12, F11 15,029 $190.8752 $2.87M
Sale Common Stock F1, F13, F11 99,925 $192.1171 $19.20M
Sale Common Stock F1, F14, F11 135,778 $192.8737 $26.19M
Sale Common Stock F1, F15, F11 21,540 $193.8292 $4.18M
Sale Common Stock F1, F16, F11 8,321 $194.8601 $1.62M
Sale Common Stock F1, F17, F11 11,632 $195.8562 $2.28M
Sale Common Stock F1, F18, F11 2,792 $196.6011 $549K
Holdings After Transaction: Common Stock — 0 shares (Direct); Common Stock — 181,143,048 shares (Indirect, by Trust)
Footnotes (18)
  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 $189.44 to $190.43, 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.
  3. F3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $190.44 to $191.4375, 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.
  4. F4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $191.44 to $192.4375, 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 $192.44 to $193.4375, 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 $193.44 to $194.43, 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.
  7. F7. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $194.44 to $195.43, 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.
  8. F8. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $195.445 to $196.4375, 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 $196.445 to $196.9325, 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 $189.44 to $190.43, 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.
  11. F11. These shares are held by a family trust for which the reporting person is a trustee.
  12. F12. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $190.44 to $191.4375, 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 $191.44 to $192.4375, 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 $192.44 to $193.4375, 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 $193.44 to $194.43, 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.
  16. F16. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $194.44 to $195.43, 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.
  17. F17. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $195.445 to $196.4375, 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.
  18. F18. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $196.445 to $196.9325, 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.
Total shares sold 411848 shares Aggregate non-derivative sales reported for August 6, 2026
Number of sale transactions 16 Non-derivative sale transactions in Arista Networks common stock
Example weighted average price $190.0053 per share One tranche of 2,015 shares of common stock sold on August 6, 2026
Lowest price range $189.44–$190.43 Weighted-average footnote range for certain August 6, 2026 sales
Highest price range $196.445–$196.9325 Weighted-average footnote range for certain August 6, 2026 sales
10b5-1 plan date February 20, 2026 Date Bechtolsheim entered into the Rule 10b5-1 trading plan
Rule 10b5-1 trading plan regulatory
"The exercise and/or sale of shares was effected 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
"The 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.
family trust financial
"These shares are held by a family trust for which the reporting person is a trustee."
ten percent owner regulatory
"The reporting person is indicated as a ten percent owner."

FAQ

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

What insider transaction did ANET report for Andreas Bechtolsheim?
Arista Networks (ANET) reported that major shareholder Andreas Bechtolsheim sold 411,848 shares of common stock on August 6, 2026 in 16 open-market transactions, with some shares sold directly and others through a family trust.

How many Arista Networks (ANET) shares did Bechtolsheim sell and at what prices?
Bechtolsheim sold 411,848 shares of Arista Networks common stock at weighted average prices ranging from about $189.44 to $196.93 per share, according to the transaction detail and accompanying weighted-average price footnotes.

Were the ANET insider sales by Bechtolsheim under a Rule 10b5-1 plan?
Yes. The filing states the sales were effected pursuant to a Rule 10b5-1 trading plan that Bechtolsheim entered into on February 20, 2026, indicating the trades were pre-arranged rather than discretionary on the trade date.

Did Bechtolsheim sell Arista Networks (ANET) shares held through a trust?
Yes. Several transactions involved shares held by a family trust for which Bechtolsheim is a trustee. These indirect holdings, identified as “by Trust,” were sold in multiple tranches alongside his directly held shares of Arista Networks common stock.

How many individual transactions were in Bechtolsheim’s August 6, 2026 ANET sale?
The Form 4 reports 16 separate non-derivative transactions on August 6, 2026, all coded as “S” for sales in open-market or private transactions, with each tranche reported at a specific weighted average per-share price.

What do the weighted average prices mean in the ANET Form 4 footnotes?
Each reported per-share price is a weighted average. The footnotes explain that actual sales occurred in multiple trades within stated price ranges, for example between $189.44 and $190.43, and detailed breakdowns are available upon request.

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

Form 4 Insider Transactions: What Each Field Means →
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Accepted by SEC EDGAR
SEC Form 4
FORM 4UNITED 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)
DirectorX10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/06/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock08/06/2026S(1)2,015D$190.0053(2)109,833D
Common Stock08/06/2026S(1)5,534D$190.8738(3)104,299D
Common Stock08/06/2026S(1)37,099D$192.1176(4)67,200D
Common Stock08/06/2026S(1)50,337D$192.8649(5)16,863D
Common Stock08/06/2026S(1)8,162D$193.8308(6)8,701D
Common Stock08/06/2026S(1)3,185D$194.8603(7)5,516D
Common Stock08/06/2026S(1)4,443D$195.8569(8)1,073D
Common Stock08/06/2026S(1)1,073D$196.6015(9)0D
Common Stock08/06/2026S(1)4,983D$190.0661(10)181,438,065Iby Trust(11)
Common Stock08/06/2026S(1)15,029D$190.8752(12)181,423,036Iby Trust(11)
Common Stock08/06/2026S(1)99,925D$192.1171(13)181,323,111Iby Trust(11)
Common Stock08/06/2026S(1)135,778D$192.8737(14)181,187,333Iby Trust(11)
Common Stock08/06/2026S(1)21,540D$193.8292(15)181,165,793Iby Trust(11)
Common Stock08/06/2026S(1)8,321D$194.8601(16)181,157,472Iby Trust(11)
Common Stock08/06/2026S(1)11,632D$195.8562(17)181,145,840Iby Trust(11)
Common Stock08/06/2026S(1)2,792D$196.6011(18)181,143,048Iby Trust(11)
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount 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 $189.44 to $190.43, 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.
3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $190.44 to $191.4375, 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.
4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $191.44 to $192.4375, 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 $192.44 to $193.4375, 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 $193.44 to $194.43, 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.
7. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $194.44 to $195.43, 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.
8. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $195.445 to $196.4375, 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 $196.445 to $196.9325, 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 $189.44 to $190.43, 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.
11. These shares are held by a family trust for which the reporting person is a trustee.
12. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $190.44 to $191.4375, 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 $191.44 to $192.4375, 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 $192.44 to $193.4375, 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 $193.44 to $194.43, 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.
16. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $194.44 to $195.43, 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.
17. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $195.445 to $196.4375, 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.
18. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $196.445 to $196.9325, 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 Bechtolsheim08/10/2026
** Signature of Reporting PersonDate
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

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