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

Andreas Bechtolsheim (NYSE: ANET) sells 205,000 Arista shares via 10b5-1 plan

Filing Impact
(Very High)
Filing Sentiment
(Very Negative)
Form Type
4

Rhea-AI Filing Summary

Arista Networks, Inc. insider Andreas Bechtolsheim reported open-market sales of 205,000 shares of common stock. The Form 4 shows six sale transactions on May 22, 2026, with reported weighted average prices ranging from $149.01 to $154.355 per share.

According to the filing, these trades were effected under a Rule 10b5-1 trading plan entered into on February 20, 2026. The shares sold were held indirectly through a family trust for which he is a trustee. After the transactions, the trust holds 183,023,048 shares indirectly, and he also holds 413,848 shares directly.

Positive

  • None.

Negative

  • None.
Insider BECHTOLSHEIM ANDREAS
Role 10% Owner
Sold 205,000 shs ($31.11M)
Type Security Shares Price Value
Sale Common Stock 24,381 $149.6825 $3.65M
Sale Common Stock 60,234 $150.5071 $9.07M
Sale Common Stock 24,105 $151.5532 $3.65M
Sale Common Stock 38,002 $152.4842 $5.79M
Sale Common Stock 51,221 $153.3841 $7.86M
Sale Common Stock 7,057 $154.1602 $1.09M
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 183,023,048 shares (Indirect, by Trust); Common Stock — 413,848 shares (Direct)
Footnotes (9)
  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 $149.01 to $150.00, 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. On December 4, 2024, the issuer completed a four-for-one stock split of the issuer's common stock. ALL AMOUNTS ON THIS FORM HAVE BEEN ADJUSTED TO GIVE EFFECT TO THIS STOCK SPLIT.
  4. F4. These shares are held by a family trust for which the reporting person is a trustee.
  5. F5. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $150.01 to $151.00, 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 $151.01 to $152.005, 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 $152.01 to $153.005, 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 $153.01 to $154.005, 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 $154.01 to $154.355, 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.
Shares sold 205,000 shares Total common shares sold on May 22, 2026
Sale price range $149.01–$154.355/share Reported weighted average price ranges for sale blocks
Indirect holdings after sale 183,203,667 shares Common stock held indirectly by family trust after transactions
Direct holdings after sale 413,848 shares Common stock held directly after May 22, 2026
Transaction date May 22, 2026 Date of reported open-market sale transactions
Rule 10b5-1 plan date February 20, 2026 Date reporting person entered Rule 10b5-1 trading plan
Net share direction -205,000 shares Net buy/sell shares in transaction summary (net-sell)
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"
four-for-one stock split financial
"On December 4, 2024, the issuer completed a four-for-one stock split of the issuer's common stock"
ten percent owner regulatory
"reporting person is marked as is_ten_percent_owner: 1 in the insider data"

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Form 4 Insider Transactions: What Each Field Means →

FAQ

What insider activity did Arista Networks (ANET) report for Andreas Bechtolsheim?
Andreas Bechtolsheim reported selling 205,000 Arista Networks common shares. The Form 4 shows six open-market transactions on May 22, 2026, executed at reported weighted average prices between $149.01 and $154.355 per share, through a family trust where he serves as trustee.

How many Arista Networks (ANET) shares did Bechtolsheim sell and at what prices?
He sold a total of 205,000 Arista Networks common shares. The reported weighted average sale prices for the separate transaction blocks ranged from $149.01 to $154.355 per share, reflecting multiple trades within those price ranges during the trading day.

Were the ANET insider sales made under a Rule 10b5-1 trading plan?
Yes, the filing states the exercise and/or sale of shares was effected under a Rule 10b5-1 trading plan. That plan was entered into by the reporting person on February 20, 2026, indicating the transactions were pre-arranged rather than newly decided on the trade date.

How many Arista Networks (ANET) shares does Bechtolsheim hold after these transactions?
After the reported sales, a family trust associated with Andreas Bechtolsheim holds 183,203,667 Arista Networks shares. The Form 4 also shows he directly owns 413,848 common shares, providing visibility into both his indirect and direct post-transaction holdings.

How are Bechtolsheim’s ANET shares held according to the Form 4?
The Form 4 explains that the sold shares are held by a family trust for which he is a trustee. It also lists a separate direct holding of 413,848 Arista Networks common shares, distinguishing between indirect trust ownership and his personal direct ownership position.

Did Arista Networks (ANET) adjust the share numbers for any stock split?
Yes, a footnote notes Arista Networks completed a four-for-one stock split on December 4, 2024. It further states that all amounts reported on this Form 4 have been adjusted to reflect the impact of that stock split on the share figures.
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)
05/22/2026		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 Stock05/22/2026S(1)24,381D$149.6825(2)183,203,667(3)Iby Trust(4)
Common Stock05/22/2026S(1)60,234D$150.5071(5)183,143,433Iby Trust(4)
Common Stock05/22/2026S(1)24,105D$151.5532(6)183,119,328Iby Trust(4)
Common Stock05/22/2026S(1)38,002D$152.4842(7)183,081,326Iby Trust(4)
Common Stock05/22/2026S(1)51,221D$153.3841(8)183,030,105Iby Trust(4)
Common Stock05/22/2026S(1)7,057D$154.1602(9)183,023,048Iby Trust(4)
Common Stock413,848D
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 $149.01 to $150.00, 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. On December 4, 2024, the issuer completed a four-for-one stock split of the issuer's common stock. ALL AMOUNTS ON THIS FORM HAVE BEEN ADJUSTED TO GIVE EFFECT TO THIS STOCK SPLIT.
4. These shares are held by a family trust for which the reporting person is a trustee.
5. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $150.01 to $151.00, 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 $151.01 to $152.005, 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 $152.01 to $153.005, 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 $153.01 to $154.005, 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 $154.01 to $154.355, 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.
By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Andreas Bechtolsheim05/27/2026
** 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