Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionMn Services Vermogensbeheer B.V.
Latest Disclosed Ownership412,031 shares
Latest Disclosed Value $ 50,589
Mn Services Vermogensbeheer B.V. reports 0.77% decrease in ownership of ANET / Arista Networks, Inc.

On April 30, 2026 - Mn Services Vermogensbeheer B.V. filed a 13F-HR form disclosing ownership of 412,031 shares of Arista Networks, Inc. (MX:ANET) valued at $50,589 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 15, 2026 disclosing 415,231 shares of Arista Networks, Inc.. This represents a change in shares of -0.77% 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)
2026-04-30 2026-03-31 13F ARISTA NETWORKS COM SHS 040413205 412,031 -3,200 -0.77 51 -7.41 0.3340
2026-01-15 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 415,231 7,155 1.75 54 -8.47 0.3348
2025-10-31 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 408,076 7,300 1.82 59 43.90 0.3844
2025-07-10 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 400,776 11,900 3.06 41 36.67 0.2853
2025-04-17 2025-03-31 13F ARISTA NETWORKS COM 040413205 388,876 -30,900 -7.36 30 -34.78 0.2333
2025-02-05 2024-12-31 13F ARISTA NETWORKS COM 040413205 419,776 317,132 308.96 46 17.95 0.3126
2024-10-30 2024-09-30 13F ARISTA NETWORKS COM 040413106 102,644 -1,900 -1.82 39 8.33 0.2763
2024-07-25 2024-06-30 13F ARISTA NETWORKS COM 040413106 104,544 -2,300 -2.15 37 20.00 0.2646
2024-04-29 2024-03-31 13F ARISTA NETWORKS COM 040413106 106,844 -17,900 -14.35 31 3.45 0.2249
2024-01-29 2023-12-31 13F ARISTA NETWORKS COM 040413106 124,744 -2,800 -2.20 29 26.09 0.2646
2023-10-25 2023-09-30 13F ARISTA NETWORKS COM 040413106 127,544 3,500 2.82 23 15.00 0.2262
2023-08-09 2023-06-30 13F ARISTA NETWORKS COM 040413106 124,044 1,000 0.81 20 0.00 0.1875
2023-04-26 2023-03-31 13F ARISTA NETWORKS COM 040413106 123,044 5,500 4.68 21 42.86 0.2128
2023-02-03 2022-12-31 13F ARISTA NETWORKS COM 040413106 117,544 -18,300 -13.47 14 -99.91 0.1599
2022-11-01 2022-09-30 13F ARISTA NETWORKS COM 040413106 135,844 -8,900 -6.15 15,335 13.02 0.1615
2022-08-03 2022-06-30 13F ARISTA NETWORKS COM 040413106 144,744 -18,400 -11.28 13,568 -40.16 0.1265
2022-05-10 2022-03-31 13F ARISTA NETWORKS COM 040413106 163,144 -12,300 -7.01 22,674 -10.10 0.1509
2022-02-10 2021-12-31 13F ARISTA NETWORKS COM 040413106 175,444 133,058 313.92 25,220 73.14 0.1477
2021-11-03 2021-09-30 13F ARISTA NETWORKS COM 040413106 42,386 400 0.95 14,566 13.56 0.0899
2021-08-05 2021-06-30 13F ARISTA NETWORKS COM 040413106 41,986 -8,800 -17.33 12,827 -13.07 0.0996
2021-02-09 2020-12-31 13F ARISTA NETWORKS COM 040413106 50,786 2,000 4.10 14,756 46.17 0.1042
2020-11-04 2020-09-30 13F ARISTA NETWORKS COM 040413106 48,786 0 0.00 10,095 -1.48 0.0794
2020-07-23 2020-06-30 13F ARISTA NETWORKS COM 040413106 48,786 3,800 8.45 10,247 12.46 0.0876
2020-05-12 2020-03-31 13F ARISTA NETWORKS COM 040413106 44,986 -2,900 -6.06 9,112 -6.45 0.1019
2020-02-12 2019-12-31 13F ARISTA NETWORKS COM 040413106 47,886 1,600 3.46 9,740 -11.93 0.0830
2019-11-12 2019-09-30 13F ARISTA NETWORKS COM 040413106 46,286 19,106 70.29 11,059 56.73 0.1026
2019-07-25 2019-06-30 13F ARISTA NETWORKS COM 040413106 27,180 -1,600 -5.56 7,056 -22.03 0.0829
2019-05-06 2019-03-31 13F ARISTA NETWORKS COM 040413106 28,780 500 1.77 9,050 73.64 0.1047
2019-02-12 2018-12-31 13F ARISTA NETWORKS COM 040413106 28,280 20,086 245.13 5,212 139.30 0.0791
2018-11-02 2018-09-30 13F ARISTA NETWORKS COM 040413106 8,194 0 0.00 2,178 3.22 0.0511
2018-08-13 2018-06-30 13F ARISTA NETWORKS COM 040413106 8,194 700 9.34 2,110 10.30 0.0529
2018-05-11 2018-03-31 13F ARISTA NETWORKS COM 040413106 7,494 200 2.74 1,913 33.68 0.0499
2018-02-02 2017-12-31 13F ARISTA NETWORKS COM 040413106 7,294 -300 -3.95 1,431 -0.62 0.0450
2017-11-01 2017-09-30 13F ARISTA NETWORKS COM 040413106 7,594 100 1.33 1,440 28.23 0.0378
2017-07-14 2017-06-30 13F ARISTA NETWORKS COM 040413106 7,494 7,494 1,123 0.0309
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.