Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionMAI Capital Management
Latest Disclosed Ownership114,604 shares
Latest Disclosed Value $ 14,071,108
MAI Capital Management reports 0.60% increase in ownership of ANET / Arista Networks, Inc.

On May 15, 2026 - MAI Capital Management filed a 13F-HR form disclosing ownership of 114,604 shares of Arista Networks, Inc. (MX:ANET) valued at $14,071,108 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 113,923 shares of Arista Networks, Inc.. This represents a change in shares of 0.60% 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)
2026-05-15 2026-03-31 13F ARISTA NETWORKS COM SHS 040413205 114,604 681 0.60 14,071 -5.73 0.0794
2026-02-13 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 113,923 87 0.08 14,927 -10.00 0.0859
2025-11-10 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 113,836 -5,750 -4.81 16,587 35.57 0.1033
2025-08-12 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 119,586 -5,369 -4.30 12,235 26.37 0.0845
2025-05-15 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 124,955 -5,884 -4.50 9,682 -33.05 0.0730
2025-02-14 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 130,839 117,871 908.94 14,462 190.56 0.1071
2024-11-07 2024-09-30 13F Arista Networks CS 040413106 12,968 -939 -6.75 4,977 2.11 0.0474
2024-08-12 2024-06-30 13F Arista Networks CS 040413106 13,907 -2,983 -17.66 4,874 -0.47 0.0477
2024-05-08 2024-03-31 13F Arista Networks CS 040413106 16,890 -876 -4.93 4,898 17.04 0.0507
2024-02-09 2023-12-31 13F Arista Networks CS 040413106 17,766 4,847 37.52 4,184 76.09 0.0550
2023-11-14 2023-09-30 13F Arista Networks CS 040413106 12,919 -777 -5.67 2,376 7.08 0.0353
2023-08-02 2023-06-30 13F Arista Networks CS 040413106 13,696 -303 -2.16 2,220 -5.53 0.0327
2023-05-10 2023-03-31 13F Arista Networks CS 040413106 13,999 -6,713 -32.41 2,350 -6.53 0.0370
2023-02-09 2022-12-31 13F Arista Networks CS 040413106 20,712 -1,827 -8.11 2,513 -1.22 0.0422
2022-11-15 2022-09-30 13F Arista Networks CS 040413106 22,539 765 3.51 2,544 24.64 0.0478
2022-07-19 2022-06-30 13F Arista Networks CS 040413106 21,774 21,774 2,041 0.0390
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.