Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionProsperity Wealth Management, Inc.
Latest Disclosed Ownership18,744 shares
Latest Disclosed Value $ 2,456,026
Prosperity Wealth Management, Inc. reports 17.11% decrease in ownership of ANET / Arista Networks, Inc.

On March 27, 2026 - Prosperity Wealth Management, Inc. filed a 13F-HR form disclosing ownership of 18,744 shares of Arista Networks, Inc. (MX:ANET) valued at $2,456,026 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 22,612 shares of Arista Networks, Inc.. This represents a change in shares of -17.11% 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)
2026-03-27 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 18,744 -3,868 -17.11 2,456 -25.44 0.8177
2025-11-14 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 22,612 473 2.14 3,295 45.43 1.1184
2025-08-05 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 22,139 680 3.17 2,265 36.28 0.8394
2025-04-18 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 21,459 1,943 9.96 1,663 -22.95 0.7815
2025-02-07 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 19,516 14,067 258.16 2,157 3.16 0.8874
2024-11-14 2024-09-30 13F ARISTA NETWORKS COM 040413106 5,449 817 17.64 2,091 28.84 0.8361
2024-08-14 2024-06-30 13F ARISTA NETWORKS COM 040413106 4,632 1,542 49.90 1,623 81.14 0.7974
2024-05-15 2024-03-31 13F ARISTA NETWORKS COM 040413106 3,090 1,075 53.35 896 89.03 0.4245
2024-01-30 2023-12-31 13F ARISTA NETWORKS COM 040413106 2,015 -30 -1.47 475 26.06 0.3085
2023-11-07 2023-09-30 13F ARISTA NETWORKS COM 040413106 2,045 13 0.64 376 14.29 0.2422
2023-09-12 2023-06-30 13F ARISTA NETWORKS COM 040413106 2,032 -1,001 -33.00 329 -35.36 0.2131
2023-09-12 2023-03-31 13F ARISTA NETWORKS COM 040413106 3,033 3,033 509 0.4031
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.