Arista Networks, Inc.
US ˙ NYSE ˙ US0404132054

SecurityANET / Arista Networks, Inc.
InstitutionAllworth Financial LP
Latest Disclosed Ownership47,340 shares
Latest Disclosed Value $ 5,812,388
Allworth Financial LP reports 1.80% increase in ownership of ANET / Arista Networks, Inc.

On May 14, 2026 - Allworth Financial LP filed a 13F-HR form disclosing ownership of 47,340 shares of Arista Networks, Inc. (US:ANET) valued at $5,812,405 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 46,502 shares of Arista Networks, Inc.. This represents a change in shares of 1.80% during the quarter. The current value of the position is $8,254,676 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)
2026-05-14 2026-03-31 13F ARISTA NETWORKS COM SHS 040413205 47,340 838 1.80 5,812 -4.61 0.0235
2026-02-05 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 46,502 3,310 7.66 6,093 -3.18 0.0250
2025-12-02 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 43,192 -2,714 -5.91 6,294 34.01 0.0278
2025-08-07 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 45,906 35,040 322.47 4,697 474.08 0.0225
2025-04-30 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 10,866 585 5.69 818 -38.68 0.0046
2025-01-30 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 10,281 7,936 338.42 1,335 48.22 0.0073
2024-10-23 2024-09-30 13F ARISTA NETWORKS COM 040413106 2,345 -183 -7.24 900 7.78 0.0055
2024-07-24 2024-06-30 13F ARISTA NETWORKS COM 040413106 2,528 41 1.65 836 15.81 0.0054
2024-04-25 2024-03-31 13F ARISTA NETWORKS COM 040413106 2,487 578 30.28 721 60.58 0.0051
2024-01-24 2023-12-31 13F ARISTA NETWORKS COM 040413106 1,909 -29 -1.50 450 26.12 0.0034
2023-10-31 2023-09-30 13F ARISTA NETWORKS COM 040413106 1,938 45 2.38 356 16.34 0.0031
2023-07-18 2023-06-30 13F ARISTA NETWORKS COM 040413106 1,893 -242 -11.33 307 -14.53 0.0026
2023-04-18 2023-03-31 13F ARISTA NETWORKS COM 040413106 2,135 1,097 105.68 358 186.40 0.0036
2023-01-13 2022-12-31 13F ARISTA NETWORKS COM 040413106 1,038 138 15.33 126 22.55 0.0014
2022-11-14 2022-09-30 13F/A-1 ARISTA NETWORKS COM 040413106 900 194 27.48 102 54.55 0.0013
2022-10-18 2022-09-30 13F ARISTA NETWORKS COM 040413106 900 194 102 0.0013
2022-07-13 2022-06-30 13F ARISTA NETWORKS COM 040413106 706 113 19.06 66 -19.51 0.0009
2022-04-22 2022-03-31 13F ARISTA NETWORKS COM 040413106 593 534 905.08 82 925.00 0.0010
2022-01-21 2021-12-31 13F ARISTA NETWORKS COM 040413106 59 45 321.43 8 60.00 0.0001
2021-11-02 2021-09-30 13F ARISTA NETWORKS COM 040413106 14 0 0.00 5 0.00 0.0001
2021-08-02 2021-06-30 13F ARISTA NETWORKS COM 040413106 14 0 0.00 5 25.00 0.0001
2021-04-29 2021-03-31 13F ARISTA NETWORKS COM 040413106 14 -40 -74.07 4 -75.00 0.0001
2021-01-26 2020-12-31 13F ARISTA NETWORKS COM 040413106 54 0 0.00 16 45.45 0.0004
2020-11-03 2020-09-30 13F ARISTA NETWORKS COM 040413106 54 0 0.00 11 0.00 0.0003
2020-07-24 2020-06-30 13F ARISTA NETWORKS COM 040413106 54 -2,960 -98.21 11 -98.20 0.0003
2020-04-17 2020-03-31 13F ARISTA NETWORKS COM 040413106 3,014 3,000 21,428.57 611 20,266.67 0.0203
2020-01-16 2019-12-31 13F ARISTA NETWORKS COM 040413106 14 -2 -12.50 3 -25.00 0.0001
2019-10-09 2019-09-30 13F ARISTA NETWORKS COM 040413106 16 0 0.00 4 0.00 0.0002
2019-07-25 2019-06-30 13F ARISTA NETWORKS COM 040413106 16 0 0.00 4 -20.00 0.0002
2019-05-07 2019-03-31 13F ARISTA NETWORKS COM 040413106 16 2 14.29 5 66.67 0.0002
2019-02-11 2018-12-31 13F ARISTA NETWORKS COM 040413106 14 0 0.00 3 -25.00 0.0001
2018-10-29 2018-09-30 13F ARISTA NETWORKS COM 040413106 14 0 0.00 4 0.00 0.0002
2018-08-08 2018-06-30 13F ARISTA NETWORKS COM 040413106 14 0 0.00 4 0.00 0.0002
2018-05-01 2018-03-31 13F ARISTA NETWORKS COM 040413106 14 14 4 0.0003
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.