Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionEnsign Peak Advisors, Inc
Latest Disclosed Ownership749,786 shares
Latest Disclosed Value $ 92,058,725
Ensign Peak Advisors, Inc reports 22.96% increase in ownership of ANET / Arista Networks, Inc.

On May 13, 2026 - Ensign Peak Advisors, Inc filed a 13F-HR form disclosing ownership of 749,786 shares of Arista Networks, Inc. (MX:ANET) valued at $92,058,725 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 609,769 shares of Arista Networks, Inc.. This represents a change in shares of 22.96% 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 ARISTA NETWORKS COM SHS 040413205 749,786 140,017 22.96 92,059 15.22 0.1715
2026-02-12 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 609,769 -322,812 -34.61 79,898 -41.20 0.1411
2025-11-13 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 932,581 36,723 4.10 135,886 48.26 0.2230
2025-08-12 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 895,858 201,494 29.02 91,655 70.37 0.1569
2025-05-14 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 694,364 -483,158 -41.03 53,799 -58.66 0.1029
2025-02-14 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 1,177,522 923,128 362.87 130,152 33.30 0.2313
2024-11-14 2024-09-30 13F ARISTA NETWORKS COM 040413106 254,394 35 0.01 97,642 9.53 0.1717
2024-08-13 2024-06-30 13F ARISTA NETWORKS COM 040413106 254,359 -17,755 -6.52 89,148 12.98 0.1629
2024-05-14 2024-03-31 13F ARISTA NETWORKS COM 040413106 272,114 27,455 11.22 78,908 36.95 0.1441
2024-02-14 2023-12-31 13F ARISTA NETWORKS COM 040413106 244,659 84,209 52.48 57,620 95.25 0.1141
2023-11-13 2023-09-30 13F ARISTA NETWORKS COM 040413106 160,450 72,645 82.73 29,512 107.40 0.0630
2023-08-14 2023-06-30 13F ARISTA NETWORKS COM 040413106 87,805 1,665 1.93 14,230 -1.59 0.0289
2023-05-15 2023-03-31 13F ARISTA NETWORKS COM 040413106 86,140 4,650 5.71 14,459 46.23 0.0313
2023-02-13 2022-12-31 13F Arista Networks COM 040413106 81,490 3,050 3.89 9,889 11.67 0.0223
2022-11-14 2022-09-30 13F Arista Networks COM 040413106 78,440 1,075 1.39 8,855 22.12 0.0220
2022-08-12 2022-06-30 13F Arista Networks COM 040413106 77,365 -45 -0.06 7,251 -32.60 0.0172
2022-05-16 2022-03-31 13F Arista Networks COM 040413106 77,410 -8,055 -9.42 10,758 -12.44 0.0219
2022-02-11 2021-12-31 13F Arista Networks COM 040413106 85,465 75,786 782.99 12,286 269.28 0.0235
2021-11-12 2021-09-30 13F Arista Networks COM 040413106 9,679 1,934 24.97 3,327 18.61 0.0069
2021-08-13 2021-06-30 13F Arista Networks COM 040413106 7,745 -980 -11.23 2,805 6.49 0.0057
2021-05-12 2021-03-31 13F Arista Networks COM 040413106 8,725 -15,964 -64.66 2,634 -63.29 0.0057
2021-02-12 2020-12-31 13F Arista Networks COM 040413106 24,689 -11,565 -31.90 7,175 -4.33 0.0163
2020-11-12 2020-09-30 13F Arista Networks COM 040413106 36,254 9,406 35.03 7,500 33.03 0.0189
2020-08-12 2020-06-30 13F Arista Networks COM 040413106 26,848 7,349 37.69 5,638 42.77 0.0153
2020-05-11 2020-03-31 13F Arista Networks COM 040413106 19,499 -6,783 -25.81 3,949 -26.13 0.0132
2020-02-14 2019-12-31 13F Arista Networks COM 040413106 26,282 26,282 5,346 0.0141
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.