Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionUs Bancorp \de\
Latest Disclosed Ownership184,776 shares
Latest Disclosed Value $ 22,686,801
Us Bancorp \de\ reports 4.44% increase in ownership of ANET / Arista Networks, Inc.

On May 14, 2026 - Us Bancorp \de\ filed a 13F-HR form disclosing ownership of 184,776 shares of Arista Networks, Inc. (MX:ANET) valued at $22,686,801 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 176,921 shares of Arista Networks, Inc.. This represents a change in shares of 4.44% 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)
2026-05-14 2026-03-31 13F ARISTA NETWORKS COM SHS 040413205 184,776 7,855 4.44 22,687 -2.14 0.0085
2026-01-30 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 176,921 1,928 1.10 23,182 -9.09 0.0272
2025-11-12 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 174,993 20,608 13.35 25,498 61.43 0.0302
2025-07-24 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 154,385 -20,446 -11.69 15,795 16.61 0.0199
2025-05-08 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 174,831 5,741 3.40 13,546 -27.52 0.0181
2025-02-05 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 169,090 124,886 282.52 18,690 10.16 0.0245
2024-10-28 2024-09-30 13F ARISTA NETWORKS COM 040413106 44,204 -169 -0.38 16,966 9.10 0.0218
2024-08-07 2024-06-30 13F ARISTA NETWORKS COM 040413106 44,373 -339 -0.76 15,552 19.95 0.0212
2024-05-08 2024-03-31 13F ARISTA NETWORKS COM 040413106 44,712 1,903 4.45 12,966 28.61 0.0181
2024-02-09 2023-12-31 13F ARISTA NETWORKS COM 040413106 42,809 2,535 6.29 10,082 36.10 0.0149
2023-11-03 2023-09-30 13F ARISTA NETWORKS COM 040413106 40,274 1,738 4.51 7,408 18.61 0.0121
2023-08-10 2023-06-30 13F ARISTA NETWORKS COM 040413106 38,536 7,544 24.34 6,245 20.05 0.0101
2023-05-09 2023-03-31 13F ARISTA NETWORKS COMMON STOCK 040413106 30,992 -264 -0.84 5,202 37.18 0.0088
2023-02-13 2022-12-31 13F ARISTA NETWORKS COMMON STOCK 040413106 31,256 -2,002 -6.02 3,793 0.99 0.0067
2022-10-27 2022-09-30 13F ARISTA NETWORKS COMMON STOCK 040413106 33,258 -305 -0.91 3,755 19.36 0.0078
2022-08-01 2022-06-30 13F ARISTA NETWORKS COMMON STOCK 040413106 33,563 4,335 14.83 3,146 -22.57 0.0061
2022-05-11 2022-03-31 13F ARISTA NETWORKS COMMON STOCK 040413106 29,228 747 2.62 4,063 -0.76 0.0068
2022-02-11 2021-12-31 13F ARISTA NETWORKS COMMON STOCK 040413106 28,481 21,218 292.14 4,094 64.02 0.0065
2021-11-10 2021-09-30 13F ARISTA NETWORKS COMMON STOCK 040413106 7,263 -1,231 -14.49 2,496 -18.91 0.0047
2021-08-05 2021-06-30 13F ARISTA NETWORKS COMMON STOCK 040413106 8,494 476 5.94 3,078 27.19 0.0058
2021-04-28 2021-03-31 13F ARISTA NETWORKS COMMON STOCK 040413106 8,018 -233 -2.82 2,420 0.96 0.0049
2021-02-04 2020-12-31 13F ARISTA NETWORKS COMMON STOCK 040413106 8,251 -725 -8.08 2,397 29.08 0.0052
2020-11-10 2020-09-30 13F ARISTA NETWORKS COMMON STOCK 040413106 8,976 -1,815 -16.82 1,857 -18.09 0.0045
2020-08-07 2020-06-30 13F ARISTA NETWORKS COMMON STOCK 040413106 10,791 -9,549 -46.95 2,267 -44.98 0.0059
2020-05-13 2020-03-31 13F ARISTA NETWORKS COMMON STOCK 040413106 20,340 -14,645 -41.86 4,120 -42.09 0.0129
2020-02-04 2019-12-31 13F ARISTA NETWORKS COMMON STOCK 040413106 34,985 -58,660 -62.64 7,115 -68.20 0.0182
2019-11-08 2019-09-30 13F ARISTA NETWORKS COMMON STOCK 040413106 93,645 41,340 79.04 22,373 64.74 0.0610
2019-08-13 2019-06-30 13F ARISTA NETWORKS COMMON STOCK 040413106 52,305 49,888 2,064.05 13,581 1,686.97 0.0379
2019-05-08 2019-03-31 13F ARISTA NETWORKS COMMON STOCK 040413106 2,417 1,400 137.66 760 255.14 0.0022
2019-02-13 2018-12-31 13F ARISTA NETWORKS COMMON STOCK 040413106 1,017 39 3.99 214 -18.01 0.0007
2018-10-31 2018-09-30 13F ARISTA NETWORKS COMMON STOCK 040413106 978 -508 -34.19 261 -31.68 0.0008
2018-08-08 2018-06-30 13F ARISTA NETWORKS COMMON STOCK 040413106 1,486 1 0.07 382 0.79 0.0012
2018-05-08 2018-03-31 13F ARISTA NETWORKS COMMON STOCK 040413106 1,485 0 0.00 379 8.60 0.0012
2018-02-02 2017-12-31 13F ARISTA NETWORKS COMMON STOCK 040413106 1,485 55 3.85 349 28.78 0.0011
2017-11-13 2017-09-30 13F ARISTA NETWORKS COMMON STOCK 040413106 1,430 129 9.92 271 38.97 0.0009
2017-07-19 2017-06-30 13F ARISTA NETWORKS COMMON STOCK 040413106 1,301 -2,001 -60.60 195 -55.28 0.0007
2017-05-03 2017-03-31 13F ARISTA NETWORKS COMMON STOCK 040413106 3,302 -922 -21.83 436 6.60 0.0015
2017-02-08 2016-12-31 13F ARISTA NETWORKS COMMON STOCK 040413106 4,224 -2,247 -34.72 409 -25.64 0.0015
2016-11-04 2016-09-30 13F ARISTA NETWORKS COMMON STOCK 040413106 6,471 1,944 42.94 550 88.36 0.0020
2016-08-10 2016-06-30 13F ARISTA NETWORKS COMMON STOCK 040413106 4,527 -219 -4.61 292 -2.34 0.0011
2016-05-13 2016-03-31 13F ARISTA NETWORKS COMMON STOCK 040413106 4,746 20 0.42 299 -18.75 0.0012
2016-02-10 2015-12-31 13F ARISTA NETWORKS COMMON STOCK 040413106 4,726 -625 -11.68 368 12.54 0.0015
2015-11-16 2015-09-30 13F ARISTA NETWORKS COMMON STOCK 040413106 5,351 1,436 36.68 327 2.19 0.0014
2015-08-10 2015-06-30 13F ARISTA NETWORKS COMMON STOCK 040413106 3,915 2,270 137.99 320 175.86 0.0012
2015-05-08 2015-03-31 13F ARISTA NETWORKS COMMON STOCK 040413106 1,645 765 86.93 116 118.87 0.0004
2015-02-13 2014-12-31 13F ARISTA NETWORKS COMMON STOCK 040413106 880 0 0.00 53 -32.05 0.0002
2014-11-14 2014-09-30 13F ARISTA NETWORKS COMMON STOCK 040413106 880 0 0.00 78 41.82 0.0003
2014-08-14 2014-06-30 13F ARISTA NETWORKS COMMON STOCK 040413106 880 880 55 0.0002
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.