ANET

anet-202602120001596532False00015965322026-02-122026-02-12

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 12, 2026

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02    Results of Operations and Financial Condition. On February 12, 2026, Arista Networks, Inc. (the “Company”) issued a press release announcing its financial results for the quarter and year ended December 31, 2025. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 9.01    Financial Statements and Exhibits. (d)Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated February 12, 2026

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

February 12, 2026/s/ CHANTELLE BREITHAUPT Chantelle Breithaupt

Senior Vice President, Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)

anet-202511040001596532False00015965322025-11-042025-11-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 4, 2025

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02 Results of Operations and Financial Condition On November 4, 2025, Arista Networks, Inc. issued a press release announcing its financial results for the quarter ended September 30, 2025. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 9.01    Financial Statements and Exhibits (d)    Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated November 4, 2025.

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

November 4, 2025 /s/ CHANTELLE BREITHAUPT Chantelle Breithaupt

Senior Vice President, Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)

anet-202508050001596532False00015965322025-08-052025-08-05

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 5, 2025

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02 Results of Operations and Financial Condition On August 5, 2025, Arista Networks, Inc. issued a press release announcing its financial results for the quarter ended June 30, 2025. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 9.01    Financial Statements and Exhibits (d)    Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated August 5, 2025.

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

August 5, 2025 /s/ CHANTELLE BREITHAUPT Chantelle Breithaupt

Senior Vice President, Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)

anet-202505010001596532False00015965322025-05-012025-05-01

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 1, 2025

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02 Results of Operations and Financial Condition On May 6, 2025, Arista Networks, Inc. issued a press release announcing its financial results for the quarter ended March 31, 2025. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

Resignation of Marc Taxay as General Counsel On May 1, 2025, Marc Taxay, the Company’s General Counsel, notified the company of his intention to resign from the Company effective May 7, 2025. Mr. Taxay’s decision was not the result of any disagreement with the Company. The Company and Board thank Mr. Taxay for his exceptional service and significant contributions during his tenure and wish him the best in future endeavors. ITEM 8.01 Other Events Appointment of Sean Christofferson as General Counsel Sean Christofferson, the Company’s Deputy General Counsel, will be promoted to General Counsel as of May 8, 2025, reporting to Chantelle Breithaupt, the Company’s Chief Financial Officer and Senior Vice President. Share repurchase plan On May 2, 2025, the Company’s board of directors authorized a $1.5 billion stock repurchase program (the “Repurchase Program”). This authorization allows the Company to repurchase shares of its common stock at its discretion and will be funded from working capital. Repurchases may be made from time to time on the open market, through privately negotiated transactions, transactions structured through investment banking institutions, block purchase techniques, 10b5-1 trading plans, or a combination of the foregoing. The Repurchase Program does not obligate the Company to acquire any of its common stock. ITEM 9.01    Financial Statements and Exhibits (d)    Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated May 6, 2025.

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersign

anet-202502180001596532False00015965322025-02-182025-02-18

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 18, 2025

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02    Results of Operations and Financial Condition. On February 18, 2025, Arista Networks, Inc. (the “Company”) issued a press release announcing its financial results for the quarter and year ended December 31, 2024. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 9.01    Financial Statements and Exhibits. (d)Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated February 18, 2025

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

February 18, 2025/s/ CHANTELLE BREITHAUPT Chantelle Breithaupt

Chief Financial Officer (Senior Vice President)

anet-202411070001596532False00015965322024-11-072024-11-07

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 7, 2024

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02    Results of Operations and Financial Condition On November 7, 2024, Arista Networks, Inc. (the "Company") issued a press release (the "Press Release") announcing its financial results for the quarter ended September 30, 2024. The full text of the Press Release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 8.01    Other Events Stock Split On November 7, 2024, the Company issued the Press Release announcing that the Company’s board of directors has approved a four-for-one forward stock split of the Company’s common stock, to be effected through the filing of an amendment to the Company's Amended and Restated Certificate of Incorporation that will proportionately increase the authorized shares of common stock. ITEM 9.01    Financial Statements and Exhibits (d)    Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated November 7, 2024.

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

November 7, 2024 /s/ CHANTELLE BREITHAUPT Chantelle Breithaupt

Chief Financial Officer (Senior Vice President)

anet-202407300001596532False00015965322024-07-302024-07-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 30, 2024

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02    Results of Operations and Financial Condition On July 30, 2024, Arista Networks, Inc. issued a press release announcing its financial results for the quarter ended June 30, 2024. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 9.01    Financial Statements and Exhibits (d)    Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated July 30, 2024.

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

July 30, 2024 /s/ CHANTELLE BREITHAUPT Chantelle Breithaupt

Chief Financial Officer (Senior Vice President)

anet-202405030001596532False00015965322024-05-032024-05-03

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 3, 2024

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02    Results of Operations and Financial Condition On May 7, 2024, Arista Networks, Inc. issued a press release announcing its financial results for the quarter ended March 31, 2024. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 8.01    Other Event On May 3, 2024, the Company’s board of directors authorized a $1.2 billion stock repurchase program (the “Repurchase Program”). This authorization allows the Company to repurchase shares of its common stock at its discretion and will be funded from working capital. Repurchases may be made from time to time on the open market, through privately negotiated transactions, transactions structured through investment banking institutions, block purchase techniques, 10b5-1 trading plans, or a combination of the foregoing. The Repurchase Program will expire in May 2027 and may be suspended or discontinued by the Company at any time without prior notice. The Repurchase Program does not obligate the Company to acquire any of its common stock. As of May 2, 2024, the Company had approximately 313.4 million shares of common stock outstanding. ITEM 9.01    Financial Statements and Exhibits (d)    Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated May 7, 2024.

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

May 7, 2024 /s/ CHANTELLE BREITHAUPT Chantelle Breithaupt

Chief Financial Officer (Senior Vice President)

anet-202402120001596532False00015965322024-02-122024-02-12

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 12, 2024

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02    Results of Operations and Financial Condition. On February 12, 2024, Arista Networks, Inc. (the “Company”) issued a press release announcing its financial results for the quarter and year ended December 31, 2023. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 9.01    Financial Statements and Exhibits. (d)Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated February 12, 2024

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

February 12, 2024/s/ ITA BRENNAN Ita Brennan Chief Financial Officer (Principal Accounting and Financial Officer)

anet-202310300001596532False00015965322023-10-302023-10-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (date of earliest event reported): October 30, 2023

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File No.) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02    Results of Operations and Financial Condition On October 30, 2023, Arista Networks, Inc. issued a press release announcing its financial results for the quarter ended September 30, 2023. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

ITEM 9.01    Financial Statements and Exhibits (d)    Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated October 30, 2023.

104Cover Page Interactive Data File (embedded within the Inline XBRL Document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

October 30, 2023 By: /s/ ITA BRENNAN

Ita Brennan

Chief Financial Officer

(Principal Accounting and Financial Officer)

anet-202307270001596532False00015965322023-07-272023-07-27

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (date of earliest event reported): July 27, 2023

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File No.) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02    Results of Operations and Financial Condition On July 31, 2023, Arista Networks, Inc. issued a press release announcing its financial results for the quarter ended June 30, 2023. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 5.02    Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain officers On July 27, 2023, Ita Brennan, the Company’s Senior Vice President, Chief Financial Officer, notified the Company of her intention to retire in 2024, effective after the Company has hired her replacement to ensure a smooth and orderly transition of her responsibilities. Ms. Brennan’s decision was not the result of any disagreement with the Company. In advance of her departure, the Company wishes to thank Ms. Brennan for her extraordinary leadership and many contributions over the past eight years. ITEM 9.01    Financial Statements and Exhibits (d)    Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated July 31, 2023.

104Cover Page Interactive Data File (embedded within the Inline XBRL Document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

July 31, 2023 By: /s/ ITA BRENNAN

Ita Brennan

Chief Financial Officer

(Principal Accounting and Financial Officer)

anet-202305010001596532False00015965322023-05-012023-05-01

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (date of earliest event reported): May 1, 2023

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File No.) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02    Results of Operations and Financial Condition On May 1, 2023, Arista Networks, Inc. issued a press release announcing its financial results for the quarter ended March 31, 2023. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 9.01    Financial Statements and Exhibits (d)    Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated May 1, 2023.

104Cover Page Interactive Data File (embedded within the Inline XBRL Document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

May 1, 2023 By: /s/ ITA BRENNAN

Ita Brennan

Chief Financial Officer

(Principal Accounting and Financial Officer)

anet-202302130001596532False00015965322023-02-132023-02-13

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (date of earliest event reported): February 13, 2023

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File No.) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02    Results of Operations and Financial Condition On February 13, 2023, Arista Networks, Inc. (the “Company”) issued a press release announcing its financial results for the quarter and year ended December 31, 2022. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 9.01    Financial Statements and Exhibits (d)Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated February 13, 2023

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

February 13, 2023/s/ ITA BRENNAN Ita Brennan Chief Financial Officer (Principal Accounting and Financial Officer)

anet-202210310001596532False00015965322022-10-312022-10-31

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (date of earliest event reported): October 31, 2022

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File No.) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02    Results of Operations and Financial Condition On October 31, 2022, Arista Networks, Inc. issued a press release announcing its financial results for the quarter ended September 30, 2022. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 9.01    Financial Statements and Exhibits (d)    Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated October 31, 2022.

104Cover Page Interactive Data File (embedded within the Inline XBRL Document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

October 31, 2022 By: /s/ ITA BRENNAN

Ita Brennan

Chief Financial Officer

(Principal Accounting and Financial Officer)

anet-202208010001596532False00015965322022-08-012022-08-01

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (date of earliest event reported): August 1, 2022

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File No.) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02    Results of Operations and Financial Condition On August 1, 2022, Arista Networks, Inc. issued a press release announcing its financial results for the quarter ended June 30, 2022. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 9.01    Financial Statements and Exhibits (d)    Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated August 1, 2022.

104Cover Page Interactive Data File (embedded within the Inline XBRL Document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

August 1, 2022 By: /s/ ITA BRENNAN

Ita Brennan

Chief Financial Officer

(Principal Accounting and Financial Officer)

anet-202205020001596532False00015965322022-05-022022-05-02

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (date of earliest event reported): May 2, 2022

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File No.) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02    Results of Operations and Financial Condition On May 2, 2022, Arista Networks, Inc. issued a press release announcing its financial results for the quarter ended March 31, 2022. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 9.01    Financial Statements and Exhibits (d)    Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated May 2, 2022

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

May 2, 2022/s/ ITA BRENNAN Ita Brennan Chief Financial Officer (Principal Accounting and Financial Officer)

anet-202202140001596532False00015965322022-02-142022-02-14

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (date of earliest event reported): February 14, 2022

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File No.) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02    Results of Operations and Financial Condition On February 14, 2022, Arista Networks, Inc. (the “Company”) issued a press release announcing its financial results for the quarter and year ended December 31, 2021. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 9.01    Financial Statements and Exhibits (d)Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated February 14, 2022

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

February 14, 2022/s/ ITA BRENNAN Ita Brennan Chief Financial Officer (Principal Accounting and Financial Officer)

anet-202111010001596532False00015965322021-11-012021-11-01

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (date of earliest event reported): November 1, 2021

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File No.) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02    Results of Operations and Financial Condition On November 1, 2021, Arista Networks, Inc. (the “Company”) issued a press release (the “Press Release”) announcing its financial results for the quarter ended September 30, 2021. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and the portions of Exhibit 99.1 related to the Company’s financial results for the quarter ended September 30, 2021 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 8.01    Other Events Stock Split On November 1, 2021, the Company issued the Press Release announcing that the Board declared a four-for-one split of the Company’s common stock in the form of a stock dividend. Share Repurchase Program In October 2021, Arista’s Board of Directors increased the prior authorization to repurchase shares by authorizing an additional $1.0 billion. The actual timing and amount of repurchases will be dependent on market and business conditions, business requirements, stock price, acquisition opportunities and other factors. ITEM 9.01    Financial Statements and Exhibits (d)    Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated November 1, 2021.

104Cover Page Interactive Data File (embedded within the Inline XBRL Document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

November 1, 2021 By: /s/ ITA BRENNAN

Ita Brennan

Chief Financial Officer

(Principal Accounting and Financial Officer)

anet-202108020001596532False00015965322021-08-022021-08-02

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (date of earliest event reported): August 2, 2021

ARISTA NETWORKS, INC.

(Exact name of registrant as specified in its charter)

Delaware 001-36468 20-1751121 (State or other jurisdiction of incorporation) (Commission File No.) (IRS Employer Identification No.)

5453 Great America Parkway Santa Clara, CA 95054 (Address of principal executive offices) (Zip Code)

(408) 547-5500 (Registrant’s telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $0.0001 par valueANETNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02    Results of Operations and Financial Condition On August 2, 2021, Arista Networks, Inc. issued a press release announcing its financial results for the quarter ended June 30, 2021. The full text of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. This information and Exhibit 99.1 are intended to be furnished under Item 2.02, “Results of Operations and Financial Condition,” and Item 9.01, “Financial Statements and Exhibits,” of Form 8-K and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing. ITEM 9.01    Financial Statements and Exhibits (d)    Exhibits

Exhibit No.Description 99.1Press release issued by Arista Networks, Inc. dated August 2, 2021.

104Cover Page Interactive Data File (embedded within the Inline XBRL Document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ARISTA NETWORKS, INC.

August 2, 2021 By: /s/ ITA BRENNAN

Ita Brennan

Chief Financial Officer

(Principal Accounting and Financial Officer)