Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionCi Investments Inc.
Latest Disclosed Ownership213,970 shares
Latest Disclosed Value $ 26,271,237
Ci Investments Inc. reports 3.38% decrease in ownership of ANET / Arista Networks, Inc.

On May 13, 2026 - Ci Investments Inc. filed a 13F-HR form disclosing ownership of 213,970 shares of Arista Networks, Inc. (MX:ANET) valued at $26,271,237 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 221,450 shares of Arista Networks, Inc.. This represents a change in shares of -3.38% 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 213,970 -7,480 -3.38 26,271 -9.46 0.0896
2026-02-12 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 221,450 -165,905 -42.83 29,017 51,714.29 0.1271
2025-11-12 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 387,355 -96,304 -19.91 56 14.29 0.2051
2025-08-12 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 483,659 15,379 3.28 49 36.11 0.1856
2025-05-13 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 468,280 12,283 2.69 36 -28.00 0.1529
2025-02-12 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 455,997 334,836 276.36 50 8.70 0.1898
2024-11-12 2024-09-30 13F ARISTA NETWORKS COM 040413106 121,161 -10,380 -7.89 47 0.00 0.1770
2024-08-12 2024-06-30 13F ARISTA NETWORKS COM 040413106 131,541 51,311 63.95 46 100.00 0.1815
2024-05-13 2024-03-31 13F ARISTA NETWORKS COM 040413106 80,230 -5,476 -6.39 23 15.00 0.0923
2024-02-12 2023-12-31 13F ARISTA NETWORKS COM 040413106 85,706 -93 -0.11 20 33.33 0.1044
2023-11-13 2023-09-30 13F ARISTA NETWORKS COM 040413106 85,799 7,140 9.08 16 25.00 0.0880
2023-08-11 2023-06-30 13F ARISTA NETWORKS COM 040413106 78,659 -129,030 -62.13 13 -64.71 0.0643
2023-05-12 2023-03-31 13F ARISTA NETWORKS COM 040413106 207,689 -1,714 -0.82 35 36.00 0.1754
2023-02-10 2022-12-31 13F ARISTA NETWORKS COM 040413106 209,403 -35,629 -14.54 25 -99.91 0.1285
2022-11-14 2022-09-30 13F ARISTA NETWORKS COM 040413106 245,032 415 0.17 27,662 20.64 0.1435
2022-08-12 2022-06-30 13F ARISTA NETWORKS COM 040413106 244,617 86,473 54.68 22,930 4.33 0.1069
2022-05-12 2022-03-31 13F ARISTA NETWORKS COM 040413106 158,144 -237,178 -60.00 21,979 -61.32 0.0809
2022-02-11 2021-12-31 13F ARISTA NETWORKS COM 040413106 395,322 314,440 388.76 56,828 104.46 0.1961
2021-11-12 2021-09-30 13F ARISTA NETWORKS COM 040413106 80,882 114 0.14 27,794 -5.02 0.1035
2021-08-13 2021-06-30 13F ARISTA NETWORKS COM 040413106 80,768 80,768 29,263 0.1073
2018-05-11 2018-03-31 13F ARISTA NETWORKS COM 040413106 0 -7,949 -100.00 0 -100.00
2018-05-11 2017-12-31 13F/A-1 ARISTA NETWORKS COM 040413106 7,949 -24,151 -75.24 1,873 -69.22 0.0192
2018-02-02 2017-12-31 13F ARISTA NETWORKS COM 040413106 7,949 -24,151 1,873
2018-05-11 2017-09-30 13F/A-1 ARISTA NETWORKS COM 040413106 32,100 0 0.00 6,086 26.58 0.0594
2017-11-06 2017-09-30 13F ARISTA NETWORKS COM 040413106 32,100 0 6,086
2017-08-10 2017-06-30 13F ARISTA NETWORKS COM 040413106 32,100 0 0.00 4,808 13.24 0.0521
2017-05-05 2017-03-31 13F ARISTA NETWORKS COM 040413106 32,100 0 0.00 4,246 36.70 0.0482
2017-02-06 2016-12-31 13F ARISTA NETWORKS COM 040413106 32,100 0 0.00 3,106 13.73 0.0340
2016-11-04 2016-09-30 13F ARISTA NETWORKS COM 040413106 32,100 32,100 0.00 2,731 -12.07 0.0298
2014-11-03 2014-09-30 13F ARISTA NETWORKS COM 040413106 0 -5,000 -100.00 0 -100.00
2014-08-01 2014-06-30 13F ARISTA NETWORKS COM 040413106 5,000 5,000 312 0.0031
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.