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

Bechtolsheim trust sells 240,000 Arista shares

Arista Networks, Inc. insider Andreas Bechtolsheim reported a series of open-market sales of common stock executed on July 2, 2026 through a family trust for which he serves as trustee.

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Filing Sentiment
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Form Type
4

Rhea-AI Filing Summary

Arista Networks, Inc. insider Andreas Bechtolsheim reported a series of open-market sales of common stock executed on July 2, 2026 through a family trust for which he serves as trustee. The trust sold an aggregate of 240,000 shares in multiple transactions at weighted-average prices within ranges from $156.73 to $167.58 per share, as detailed in footnotes. Following these sales, Bechtolsheim held 111,848 shares directly and the family trust held 182,043,048 shares of Arista Networks common stock.

The transactions were carried out pursuant to a Rule 10b5-1 trading plan that Bechtolsheim entered into on February 20, 2026, indicating the sales were pre-arranged under a preset trading program rather than discretionary same-day decisions.

Positive

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Negative

  • None.
Insider BECHTOLSHEIM ANDREAS
Role 10% Owner
Sold 240,000 shs ($39.04M)
Type Security Shares Price Value
Sale Common Stock 4,113 $157.242 $647K
Sale Common Stock 8,302 $158.3957 $1.32M
Sale Common Stock 25,845 $159.2266 $4.12M
Sale Common Stock 19,442 $160.164 $3.11M
Sale Common Stock 7,385 $161.1709 $1.19M
Sale Common Stock 18,098 $162.478 $2.94M
Sale Common Stock 77,753 $163.1799 $12.69M
Sale Common Stock 47,004 $164.2329 $7.72M
Sale Common Stock 20,218 $165.0925 $3.34M
Sale Common Stock 5,477 $166.3381 $911K
Sale Common Stock 6,363 $167.0659 $1.06M
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 182,043,048 shares (Indirect, by Trust); Common Stock — 111,848 shares (Direct)
Footnotes (13)
  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 $156.73 to $157.725, 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 $157.73 to $158.725, 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 $158.73 to $159.7275, 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 $159.73 to $160.7225, 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 $160.73 to $161.72, 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 $161.74 to $162.7375, 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 $162.74 to $163.73, 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 $163.74 to $164.735, 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 $164.7425 to $165.74, 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 $165.75 to $166.745, 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 $166.7775 to $167.58, 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.
Shares sold 240,000 shares Aggregate open-market sales on July 2, 2026
Price range $156.73–$167.58 per share Weighted-average price ranges from footnotes for July 2, 2026 trades
Direct holdings after 111,848 shares Common stock directly held following reported transactions
Trust holdings after 182,278,935 shares Common stock held by family trust after sales
Sell transactions 11 sale entries Non-derivative open-market sale codes S on July 2, 2026
Net share direction net-sell of 240,000 shares Form 4 transaction summary
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 on February 20, 2026."
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 at prices ranging from $156.73 to $157.725, inclusive."
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.

FAQ

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

What insider transaction did Andreas Bechtolsheim report for Arista Networks (ANET)?
Andreas Bechtolsheim reported the sale of 240,000 shares of Arista Networks common stock. The shares were sold on July 2, 2026 in multiple open-market transactions executed through a family trust for which he serves as trustee.

At what prices were the Arista Networks (ANET) shares sold by the Bechtolsheim family trust?
The reported Arista Networks share sales were executed at weighted-average prices within ranges from $156.73 to $167.58 per share. Footnotes explain the shares were sold in numerous individual trades across these price intervals on July 2, 2026.

How many Arista Networks (ANET) shares does Andreas Bechtolsheim hold after these transactions?
After the reported transactions, Andreas Bechtolsheim directly held 111,848 Arista Networks shares. A related family trust, for which he is trustee, held 182,278,935 additional shares, reflecting his continued significant indirect ownership position in the company.

Were Andreas Bechtolsheim’s Arista Networks (ANET) share sales made under a Rule 10b5-1 plan?
Yes. Footnotes state that the exercise and/or sale of shares was effected under a Rule 10b5-1 trading plan entered into on February 20, 2026, indicating the July 2, 2026 sales were conducted pursuant to a pre-arranged trading program.

Who actually holds the Arista Networks (ANET) shares sold in this Form 4 filing?
The sold Arista Networks shares are held by a family trust for which Andreas Bechtolsheim is a trustee. The Form 4 notes the trust ownership with indirect ownership type labeled “by Trust,” clarifying that the transactions relate to this trust-held position.

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 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)
07/02/2026		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 Stock07/02/2026S(1)4,113D$157.242(2)182,278,935Iby Trust(3)
Common Stock07/02/2026S(1)8,302D$158.3957(4)182,270,633Iby Trust(3)
Common Stock07/02/2026S(1)25,845D$159.2266(5)182,244,788Iby Trust(3)
Common Stock07/02/2026S(1)19,442D$160.164(6)182,225,346Iby Trust(3)
Common Stock07/02/2026S(1)7,385D$161.1709(7)182,217,961Iby Trust(3)
Common Stock07/02/2026S(1)18,098D$162.478(8)182,199,863Iby Trust(3)
Common Stock07/02/2026S(1)77,753D$163.1799(9)182,122,110Iby Trust(3)
Common Stock07/02/2026S(1)47,004D$164.2329(10)182,075,106Iby Trust(3)
Common Stock07/02/2026S(1)20,218D$165.0925(11)182,054,888Iby Trust(3)
Common Stock07/02/2026S(1)5,477D$166.3381(12)182,049,411Iby Trust(3)
Common Stock07/02/2026S(1)6,363D$167.0659(13)182,043,048Iby Trust(3)
Common Stock111,848D
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 $156.73 to $157.725, 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 $157.73 to $158.725, 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 $158.73 to $159.7275, 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 $159.73 to $160.7225, 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 $160.73 to $161.72, 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 $161.74 to $162.7375, 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 $162.74 to $163.73, 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 $163.74 to $164.735, 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 $164.7425 to $165.74, 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 $165.75 to $166.745, 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 $166.7775 to $167.58, 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- For: Andreas Bechtolsheim07/07/2026
** 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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