Arista Networks, Inc.
US ˙ NYSE ˙ US0404132054

SecurityANET / Arista Networks, Inc.
InstitutionFirst Horizon Advisors, Inc.
Latest Disclosed Ownership4,048 shares
Latest Disclosed Value $ 414,245
First Horizon Advisors, Inc. reports 2.79% increase in ownership of ANET / Arista Networks, Inc.

On August 6, 2025 - First Horizon Advisors, Inc. filed a 13F-HR form disclosing ownership of 4,048 shares of Arista Networks, Inc. (US:ANET) valued at $414,151 USD as of June 30, 2025. The entity filed a previous 13F-HR on April 28, 2025 disclosing 3,938 shares of Arista Networks, Inc.. This represents a change in shares of 2.79% during the quarter. The current value of the position is $672,008 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2025-08-06 2025-06-30 13F ARISTA NETWORKS INC COM SHS COMMON STOCK 040413205 4,048 110 2.79 414 35.74 0.0108
2025-04-28 2025-03-31 13F ARISTA NETWORKS INC COM SHS COMMON STOCK 040413205 3,938 84 2.18 305 -28.24 0.0086
2025-02-03 2024-12-31 13F ARISTA NETWORKS INC COM SHS COMMON STOCK 040413205 3,854 2,891 300.21 426 15.18 0.0119
2024-11-08 2024-09-30 13F ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 963 165 20.68 370 32.26 0.0103
2024-07-19 2024-06-30 13F ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 798 48 6.40 280 28.57 0.0085
2024-04-26 2024-03-31 13F ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 750 -2 -0.27 218 22.60 0.0067
2024-02-06 2023-12-31 13F ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 752 -142 -15.88 177 7.93 0.0059
2023-10-27 2023-09-30 13F ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 894 -71 -7.36 164 5.13 0.0060
2023-08-03 2023-06-30 13F ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 965 -479 -33.17 156 -35.54 0.0054
2023-05-15 2023-03-31 13F ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 1,444 -116 -7.44 242 28.04 0.0087
2023-02-10 2022-12-31 13F ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 1,560 919 143.37 189 166.20 0.0070
2022-11-09 2022-09-30 13F ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 641 -447 -41.08 71 -29.70 0.0028
2022-08-02 2022-06-30 13F ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 1,088 530 94.98 101 29.49 0.0036
2022-05-10 2022-03-31 13F ARISTA NETWORKS COMMON STOCK 040413106 558 -578 -50.88 78 -51.85 0.0033
2022-02-09 2021-12-31 13F ARISTA NETWORKS COMMON STOCK 040413106 1,136 852 300.00 162 67.01 0.0049
2021-11-15 2021-09-30 13F/A-1 ARISTA NETWORKS COMMON STOCK 040413106 284 -10 -3.40 97 -7.62 0.0032
2021-11-09 2021-09-30 13F ARISTA NETWORKS COMMON STOCK 040413106 267 -27 55 0.0008
2021-08-09 2021-06-30 13F ARISTA NETWORKS COMMON STOCK 040413106 294 67 29.52 105 54.41 0.0057
2021-05-11 2021-03-31 13F ARISTA NETWORKS COMMON STOCK 040413106 227 0 0.00 68 4.62 0.0039
2021-02-11 2020-12-31 13F ARISTA NETWORKS COMMON STOCK 040413106 227 105 86.07 65 160.00 0.0044
2020-11-12 2020-09-30 13F ARISTA NETWORKS COMMON STOCK 040413106 122 0 0.00 25 -3.85 0.0019
2020-07-31 2020-06-30 13F ARISTA NETWORKS COMMON STOCK 040413106 122 0 0.00 26 4.00 0.0020
2020-05-05 2020-03-31 13F ARISTA NETWORKS COMMON STOCK 040413106 122 0 0.00 25 0.00 0.0023
2020-01-07 2019-12-31 13F ARISTA NETWORKS COMMON STOCK 040413106 122 0 0.00 25 -13.79 0.0018
2019-10-23 2019-09-30 13F ARISTA NETWORKS COMMON STOCK 040413106 122 0 0.00 29 -9.37 0.0023
2019-08-05 2019-06-30 13F ARISTA NETWORKS COMMON STOCK 040413106 122 0 0.00 32 -15.79 0.0025
2019-04-26 2019-03-31 13F ARISTA NETWORKS COMMON STOCK 040413106 122 0 0.00 38 46.15 0.0030
2019-02-11 2018-12-31 13F ARISTA NETWORKS COMMON STOCK 040413106 122 122 26 0.0023
2018-11-08 2018-09-30 13F/A-2 ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 0 -180 -100.00 0 -100.00
2018-08-06 2018-06-30 13F ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 180 0 0.00 46 6.98 0.0039
2018-05-02 2018-03-31 13F ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 180 0 0.00 43 -4.44 0.0042
2018-01-25 2017-12-31 13F ARISTA0NETWORKS0INC0COM0USD0.0001 COMMON0STOCK 040413106 180 0 0.00 45 36.36 0.0043
2017-11-09 2017-09-30 13F ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 180 0 0.00 33 13.79 0.0034
2017-08-14 2017-06-30 13F ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 180 -83 -31.56 29 -17.14 0.0032
2017-05-02 2017-03-31 13F ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 263 251 2,091.67 35 0.0040
2017-02-13 2016-12-31 13F ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 12 0 0.00 0 0.0000
2016-10-28 2016-09-30 13F ARISTA NETWORKS INC COM USD0.0001 COMMON STOCK 040413106 12 12 0 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.