Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionCWM Advisors, LLC
Latest Disclosed Ownership54,229 shares
Latest Disclosed Value $ 6,658,237
CWM Advisors, LLC reports 54.34% decrease in ownership of ANET / Arista Networks, Inc.

On May 13, 2026 - CWM Advisors, LLC filed a 13F-HR/A form disclosing ownership of 54,229 shares of Arista Networks, Inc. (MX:ANET) valued at $6,658,237 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 118,771 shares of Arista Networks, Inc.. This represents a change in shares of -54.34% 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)
2026-05-13 2026-03-31 13F/A-1 ARISTA NETWORKS COM SHS 040413205 54,229 -64,542 -54.34 6,658 -57.22 1.3357
2026-04-23 2026-03-31 13F ARISTA NETWORKS COM SHS 040413205 132,882 14,111 16,315 1.3428
2026-02-17 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 118,771 -26,166 -18.05 15,563 -26.31 1.4003
2025-10-15 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 144,937 2,124 1.49 21,119 44.53 2.0556
2025-07-24 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 142,813 -12,092 -7.81 14,611 21.74 1.5917
2025-06-03 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 154,905 25,875 20.05 12,002 -15.84 1.4266
2025-01-17 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 129,030 100,390 350.52 14,262 29.74 1.5960
2024-10-10 2024-09-30 13F ARISTA NETWORKS COM 040413106 28,640 2,976 11.60 10,993 22.21 1.1246
2024-08-12 2024-06-30 13F ARISTA NETWORKS COM 040413106 25,664 -8,796 -25.53 8,995 -9.99 1.0367
2024-05-07 2024-03-31 13F ARISTA NETWORKS COM 040413106 34,460 -168 -0.49 9,993 22.53 1.0224
2024-02-12 2023-12-31 13F ARISTA NETWORKS COM 040413106 34,628 982 2.92 8,155 31.79 0.8969
2023-10-26 2023-09-30 13F ARISTA NETWORKS COM 040413106 33,646 27,539 450.94 6,189 525.68 0.7901
2023-07-31 2023-06-30 13F ARISTA NETWORKS COM 040413106 6,107 3,860 171.78 990 162.33 0.1197
2023-04-24 2023-03-31 13F ARISTA NETWORKS COM 040413106 2,247 -15,055 -87.01 377 -82.04 0.0480
2023-01-26 2022-12-31 13F ARISTA NETWORKS COM 040413106 17,302 -6,831 -28.31 2,100 -22.94 0.2702
2022-11-07 2022-09-30 13F ARISTA NETWORKS COM 040413106 24,133 158 0.66 2,724 21.23 0.3849
2022-08-10 2022-06-30 13F ARISTA NETWORKS COM 040413106 23,975 -1,617 -6.32 2,247 -36.83 0.2981
2022-04-21 2022-03-31 13F ARISTA NETWORKS COM 040413106 25,592 605 2.42 3,557 -0.97 0.4117
2022-02-14 2021-12-31 13F/A-1 ARISTA NETWORKS COM 040413106 24,987 23,993 2,413.78 3,592 950.29 0.4119
2021-11-09 2021-09-30 13F ARISTA NETWORKS COM 040413106 994 -518 -34.26 342 -37.59 0.0432
2021-08-10 2021-06-30 13F ARISTA NETWORKS COM 040413106 1,512 63 4.35 548 25.40 0.0721
2021-04-30 2021-03-31 13F ARISTA NETWORKS COM 040413106 1,449 138 10.53 437 14.70 0.0670
2021-02-12 2020-12-31 13F ARISTA NETWORKS COM 040413106 1,311 -439 -25.09 381 5.25 0.0843
2020-11-16 2020-09-30 13F ARISTA NETWORKS COM 040413106 1,750 103 6.25 362 4.62 0.0996
2020-08-12 2020-06-30 13F ARISTA NETWORKS COM 040413106 1,647 -81 -4.69 346 -1.14 0.1195
2020-05-08 2020-03-31 13F ARISTA NETWORKS COM 040413106 1,728 -912 -34.55 350 -34.82 0.1398
2020-01-24 2019-12-31 13F ARISTA NETWORKS COM 040413106 2,640 696 35.80 537 15.73 0.1926
2019-11-13 2019-09-30 13F ARISTA NETWORKS COM 040413106 1,944 1,944 464 0.1769
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.