Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionPrivate Advisory Group LLC
Latest Disclosed Ownership86,323 shares
Latest Disclosed Value $ 10,598,738
Private Advisory Group LLC reports 5.68% increase in ownership of ANET / Arista Networks, Inc.

On May 8, 2026 - Private Advisory Group LLC filed a 13F-HR form disclosing ownership of 86,323 shares of Arista Networks, Inc. (MX:ANET) valued at $10,598,738 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 15, 2026 disclosing 81,680 shares of Arista Networks, Inc.. This represents a change in shares of 5.68% during the quarter.

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)
2026-05-08 2026-03-31 13F ARISTA NETWORKS COM SHS 040413205 86,323 4,643 5.68 10,599 -0.97 0.3944
2026-01-15 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 81,680 81,680 10,703 0.8386
2025-05-08 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 0 -11,682 -100.00 0 -100.00
2025-04-11 2024-12-31 13F/A-1 ARISTA NETWORKS COM SHS 040413205 11,682 8,627 282.39 1,291 10.15 0.1446
2025-02-14 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 11,682 11,682 1,291 0.1446
2024-10-09 2024-09-30 13F ARISTA NETWORKS COM 040413106 3,055 658 27.45 1,172 39.52 0.1399
2024-07-23 2024-06-30 13F ARISTA NETWORKS COM 040413106 2,397 -3,572 -59.84 840 -51.47 0.1094
2024-05-14 2024-03-31 13F ARISTA NETWORKS COM 040413106 5,969 1,723 40.58 1,731 73.27 0.2469
2024-02-13 2023-12-31 13F ARISTA NETWORKS COM 040413106 4,246 4,246 1,000 0.1736
2022-08-12 2022-06-30 13F ARISTA NETWORKS COM 040413106 0 -2,124 -100.00 0 -100.00
2022-05-13 2022-03-31 13F ARISTA NETWORKS COM 040413106 2,124 -38 -1.76 295 -5.14 0.0578
2022-01-27 2021-12-31 13F ARISTA NETWORKS COM 040413106 2,162 53 2.51 311 52.45 0.0587
2017-05-23 2016-12-31 13F/A-1 ARISTA NETWORKS COM 040413106 2,109 2,109 204 0.1407
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.