Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionFisher Asset Management, LLC
Latest Disclosed Ownership13,585 shares
Latest Disclosed Value $ 1,668,015
Fisher Asset Management, LLC reports 32.94% decrease in ownership of ANET / Arista Networks, Inc.

On May 5, 2026 - Fisher Asset Management, LLC filed a 13F-HR form disclosing ownership of 13,585 shares of Arista Networks, Inc. (MX:ANET) valued at $1,668,015 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 20,259 shares of Arista Networks, Inc.. This represents a change in shares of -32.94% 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)
2026-05-05 2026-03-31 13F ARISTA NETWORKS INC COM SHS COM 040413205 13,585 -6,674 -32.94 1,668 -37.15 0.0006
2026-02-09 2025-12-31 13F ARISTA NETWORKS INC COM SHS COM 040413205 20,259 -1,838 -8.32 2,655 -17.55 0.0009
2025-11-12 2025-09-30 13F ARISTA NETWORKS INC COM SHS COM 040413205 22,097 -214 -0.96 3,220 41.06 0.0012
2025-08-13 2025-06-30 13F ARISTA NETWORKS INC COM SHS COM 040413205 22,311 -1,352 -5.71 2,283 24.50 0.0009
2025-05-14 2025-03-31 13F ARISTA NETWORKS INC COM SHS COM 040413205 23,663 -3,729 -13.61 1,833 -39.44 0.0008
2025-02-05 2024-12-31 13F ARISTA NETWORKS INC COM SHS COM 040413205 27,392 20,675 307.80 3,028 17.42 0.0012
2024-11-12 2024-09-30 13F ARISTA NETWORKS INC COM COM 040413106 6,717 1,633 32.12 2,578 44.67 0.0011
2024-08-14 2024-06-30 13F ARISTA NETWORKS INC COM COM 040413106 5,084 -703 -12.15 1,782 6.20 0.0008
2024-05-09 2024-03-31 13F ARISTA NETWORKS INC COM COM 040413106 5,787 828 16.70 1,678 43.79 0.0008
2024-03-05 2023-12-31 13F/A-1 ARISTA NETWORKS INC COM COM 040413106 4,959 -2,100 -29.75 1,168 -10.09 0.0006
2024-02-06 2023-12-31 13F ARISTA NETWORKS INC COM COM 040413106 8,134 1,075 1,916 0.0009
2023-11-13 2023-09-30 13F ARISTA NETWORKS INC COM COM 040413106 7,059 -355 -4.79 1,298 8.08 0.0007
2023-12-12 2023-06-30 13F/A-1 ARISTA NETWORKS INC COM COM 040413106 7,414 285 4.00 1,202 0.42 0.0007
2023-08-08 2023-06-30 13F ARISTA NETWORKS INC COM COM 040413106 7,414 285 1 0.0007
2023-12-12 2023-03-31 13F/A-1 ARISTA NETWORKS INC COM COM 040413106 7,129 -145 -1.99 1,197 0.0007
2023-05-01 2023-03-31 13F ARISTA NETWORKS INC COM COM 040413106 7,129 -145 1 0.0007
2023-02-03 2022-12-31 13F ARISTA NETWORKS INC COM COM 040413106 7,274 -2,976 -29.03 1 -100.00 0.0006
2022-11-08 2022-09-30 13F ARISTA NETWORKS INC COM COM 040413106 10,250 -1,124 -9.88 1,157 8.54 0.0009
2022-08-09 2022-06-30 13F ARISTA NETWORKS INC COM COM 040413106 11,374 265 2.39 1,066 -30.96 0.0008
2022-05-05 2022-03-31 13F ARISTA NETWORKS INC COM COM 040413106 11,109 -53,151 -82.71 1,544 -83.28 0.0009
2022-02-02 2021-12-31 13F ARISTA NETWORKS INC COM COM 040413106 64,260 48,067 296.84 9,237 65.98 0.0052
2021-10-26 2021-09-30 13F ARISTA NETWORKS INC COM COM 040413106 16,193 -753 -4.44 5,565 -9.36 0.0035
2021-07-27 2021-06-30 13F ARISTA NETWORKS INC COM COM 040413106 16,946 124 0.74 6,140 20.91 0.0039
2021-04-27 2021-03-31 13F ARISTA NETWORKS INC COM COM 040413106 16,822 -480 -2.77 5,078 1.01 0.0036
2021-01-29 2020-12-31 13F ARISTA NETWORKS INC COM COM 040413106 17,302 11,487 197.54 5,027 317.87 0.0038
2020-11-12 2020-09-30 13F/A-1 ARISTA NETWORKS INC COM COM 040413106 5,815 5,815 1,203 0.0011
2020-11-10 2020-09-30 13F ARISTA NETWORKS INC COM COM 040413106 5,815 5,815 1,203
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.