Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionBurney Co/
Latest Disclosed Ownership234,272 shares
Latest Disclosed Value $ 28,763,917
Burney Co/ reports 36.83% decrease in ownership of ANET / Arista Networks, Inc.

On April 29, 2026 - Burney Co/ filed a 13F-HR form disclosing ownership of 234,272 shares of Arista Networks, Inc. (MX:ANET) valued at $28,763,917 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 370,880 shares of Arista Networks, Inc.. This represents a change in shares of -36.83% 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)
2026-04-29 2026-03-31 13F ARISTA NETWORKS COM SHS 040413205 234,272 -136,608 -36.83 28,764 -40.81 0.7349
2026-01-23 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 370,880 2,357 0.64 48,596 -9.50 1.5151
2025-10-16 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 368,523 -10,996 -2.90 53,697 38.29 1.7079
2025-08-05 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 379,519 58 0.02 38,829 32.07 1.3142
2025-05-06 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 379,461 -5,870 -1.52 29,401 -30.97 1.0698
2025-01-14 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 385,331 285,959 287.77 42,591 11.67 1.5050
2024-10-18 2024-09-30 13F ARISTA NETWORKS COM 040413106 99,372 1,194 1.22 38,141 10.84 1.3566
2024-07-29 2024-06-30 13F ARISTA NETWORKS COM 040413106 98,178 -1,732 -1.73 34,409 18.77 1.3147
2024-05-22 2024-03-31 13F ARISTA NETWORKS COM 040413106 99,910 -1,478 -1.46 28,972 21.33 1.1039
2024-02-12 2023-12-31 13F ARISTA NETWORKS COM 040413106 101,388 9,274 10.07 23,878 40.93 1.0050
2023-11-08 2023-09-30 13F ARISTA NETWORKS COM 040413106 92,114 2,623 2.93 16,943 16.83 0.7939
2023-08-09 2023-06-30 13F ARISTA NETWORKS COM 040413106 89,491 18,715 26.44 14,503 22.07 0.6648
2023-05-10 2023-03-31 13F ARISTA NETWORKS COM 040413106 70,776 23,181 48.70 11,880 105.71 0.5854
2023-02-06 2022-12-31 13F ARISTA NETWORKS COM 040413106 47,595 4,154 9.56 5,776 17.76 0.2925
2022-11-15 2022-09-30 13F ARISTA NETWORKS COM 040413106 43,441 14,195 48.54 4,904 78.91 0.2707
2022-08-12 2022-06-30 13F ARISTA NETWORKS COM 040413106 29,246 -1,738 -5.61 2,741 -36.36 0.1442
2022-05-09 2022-03-31 13F ARISTA NETWORKS COM 040413106 30,984 -55,798 -64.30 4,307 -65.47 0.1768
2022-05-09 2022-03-31 13F ARISTA NETWORKS COM 040413106 28,735 3,994
2022-02-11 2021-12-31 13F ARISTA NETWORKS COM 040413106 86,782 64,043 281.64 12,475 59.65 0.5386
2021-11-12 2021-09-30 13F ARISTA NETWORKS COM 040413106 22,739 -1,035 -4.35 7,814 -9.28 0.3668
2021-08-06 2021-06-30 13F ARISTA NETWORKS COM 040413106 23,774 -1,569 -6.19 8,613 12.57 0.4007
2021-05-13 2021-03-31 13F ARISTA NETWORKS COM 040413106 25,343 2,505 10.97 7,651 15.31 0.3773
2021-02-11 2020-12-31 13F ARISTA NETWORKS COM 040413106 22,838 3,774 19.80 6,635 68.19 0.3640
2020-12-14 2020-09-30 13F ARISTA NETWORKS COM 040413106 19,064 3,537 22.78 3,945 20.98 0.2444
2020-08-13 2020-06-30 13F ARISTA NETWORKS COM 040413106 15,527 13,877 841.03 3,261 876.35 0.2116
2020-05-13 2020-03-31 13F ARISTA NETWORKS COM 040413106 1,650 150 10.00 334 9.51 0.0257
2020-02-14 2019-12-31 13F ARISTA NETWORKS COM 040413106 1,500 50 3.45 305 -11.85 0.0168
2019-11-12 2019-09-30 13F ARISTA NETWORKS COM 040413106 1,450 0 0.00 346 -7.98 0.0207
2019-08-12 2019-06-30 13F ARISTA NETWORKS COM 040413106 1,450 1,450 376 0.0228
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.