Chantelle Yvette Breithaupt - 20 Feb 2026 Form 4 Insider Report for Arista Networks, Inc. (ANET)

Role
Senior Vice President, CFO
Signature
By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Chantelle Breithaupt
Issuer symbol
ANET
Transactions as of
20 Feb 2026
Net transactions value
-$2,786,455
Form type
4
Filing time
24 Feb 2026, 19:18:29 UTC
Previous filing
17 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Breithaupt Chantelle Yvette Senior Vice President, CFO 5453 GREAT AMERICA PARKWAY, SANTA CLARA By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Chantelle Breithaupt 24 Feb 2026 0001850596

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ANET Common Stock Options Exercise $0 +10,920 +23% $0.000000 58,315 20 Feb 2026 Direct F1
transaction ANET Common Stock Options Exercise $0 +15,864 +27% $0.000000 74,179 20 Feb 2026 Direct F1
transaction ANET Common Stock Options Exercise $0 +1,350 +1.8% $0.000000 75,529 20 Feb 2026 Direct F1
transaction ANET Common Stock Options Exercise $0 +14,400 +19% $0.000000 89,929 20 Feb 2026 Direct F1
transaction ANET Common Stock Tax liability $2,786,455 -20,305 -23% $137.23 69,624 20 Feb 2026 Direct F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction ANET Restricted Stock Unit-1 Options Exercise $0 -10,920 -11% $0.000000 87,340 20 Feb 2026 Common Stock 10,920 $0.000000 Direct F1, F3
transaction ANET Restricted Stock Unit-2 Options Exercise $0 -1,350 -6.2% $0.000000 20,250 20 Feb 2026 Common Stock 1,350 $0.000000 Direct F1, F4
transaction ANET Restricted Stock Unit-3 Award $0 +15,864 $0.000000 15,864 20 Feb 2026 Common Stock 15,864 $0.000000 Direct F1, F5
transaction ANET Restricted Stock Unit-3 Options Exercise $0 -15,864 -100% $0.000000 0 20 Feb 2026 Common Stock 15,864 $0.000000 Direct F1, F5
transaction ANET Restricted Stock Unit-7 Award $0 +14,400 $0.000000 14,400 20 Feb 2026 Common Stock 14,400 $0.000000 Direct F1, F6
transaction ANET Restricted Stock Unit-7 Options Exercise $0 -14,400 -100% $0.000000 0 20 Feb 2026 Common Stock 14,400 $0.000000 Direct F1, F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting.
F2 Represents shares withheld to satisfy tax withholding obligations on the vesting of restricted stock units.
F3 Twenty five percent (25%) of the restricted stock units awarded vested on Feb 20, 2025 and will continue to vest at a rate of six and one-quarter percent (6.25%) each quarter on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20 or November 20 of each year.
F4 Six and one-quarter percent (6.25%) of the restricted stock units awarded vest on February 20, 2026 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, and November 20 of each year.
F5 This performance stock award was granted in the first quarter of 2024 and was earned based on attainment of certain performance conditions. The award vested on February 20, 2026.
F6 This performance stock award was granted in the first quarter of 2024 and was earned based on attainment of certain performance conditions. The award vested on February 20, 2026.