Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionCigna Investments Inc /new
Latest Disclosed Ownership9,881 shares
Latest Disclosed Value $ 1,213
Cigna Investments Inc /new reports 1.50% decrease in ownership of ANET / Arista Networks, Inc.

On May 11, 2026 - Cigna Investments Inc /new filed a 13F-HR form disclosing ownership of 9,881 shares of Arista Networks, Inc. (MX:ANET) valued at $1,213 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 10,031 shares of Arista Networks, Inc.. This represents a change in shares of -1.50% 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)
2026-05-11 2026-03-31 13F ARISTA NETWORKS Common Stock 040413205 9,881 -150 -1.50 1 0.00 0.1867
2026-01-20 2025-12-31 13F ARISTA NETWORKS Common Stock 040413205 10,031 -51 -0.51 1 0.00 0.1896
2025-10-22 2025-09-30 13F ARISTA NETWORKS Common Stock 040413205 10,082 -167 -1.63 1 0.00 0.2070
2025-07-15 2025-06-30 13F ARISTA NETWORKS Common Stock 040413205 10,249 -192 -1.84 1 0.1783
2025-05-15 2025-03-31 13F ARISTA NETWORKS Common Stock 040413205 10,441 -219 -2.05 1 -100.00 0.1503
2025-01-29 2024-12-31 13F ARISTA NETWORKS Common Stock 040413205 10,660 7,979 297.61 1 0.00 0.2059
2024-10-28 2024-09-30 13F ARISTA NETWORKS Common Stock 040413106 2,681 -19 -0.70 1 0.1812
2024-07-17 2024-06-30 13F ARISTA NETWORKS Common Stock 040413106 2,700 -3 -0.11 1 0.1751
2024-04-23 2024-03-31 13F ARISTA NETWORKS Common Stock 040413106 2,703 -9 -0.33 1 0.1474
2024-01-22 2023-12-31 13F ARISTA NETWORKS Common Stock 040413106 2,712 0 0.00 1 0.1312
2023-10-23 2023-09-30 13F ARISTA NETWORKS Common Stock 040413106 2,712 -259 -8.72 0 0.1137
2023-08-01 2023-06-30 13F ARISTA NETWORKS Common Stock 040413106 2,971 0 0.00 0 0.0894
2023-05-11 2023-03-31 13F ARISTA NETWORKS Common Stock 040413106 2,971 -56 -1.85 0 0.0990
2023-02-13 2022-12-31 13F ARISTA NETWORKS Common Stock 040413106 3,027 -31 -1.01 0 0.0764
2022-11-14 2022-09-30 13F ARISTA NETWORKS Common Stock 040413106 3,058 -104 -3.29 0 0.0763
2022-08-15 2022-06-30 13F ARISTA NETWORKS Common Stock 040413106 3,162 -957 -23.23 0 0.0589
2022-05-13 2022-03-31 13F ARISTA NETWORKS Common Stock 040413106 4,119 -1,069 -20.61 1 0.0703
2022-02-14 2021-12-31 13F ARISTA NETWORKS Common Stock 040413106 5,188 3,436 196.12 1 0.0584
2021-11-12 2021-09-30 13F ARISTA NETWORKS Common Stock 040413106 1,752 -19 -1.07 1 0.0449
2021-08-10 2021-06-30 13F ARISTA NETWORKS Common Stock 040413106 1,771 -300 -14.49 1 0.0458
2021-05-10 2021-03-31 13F ARISTA NETWORKS Common Stock 040413106 2,071 100 5.07 1 0.0429
2021-02-11 2020-12-31 13F ARISTA NETWORKS Common Stock 040413106 1,971 160 8.83 1 0.0443
2020-11-12 2020-09-30 13F ARISTA NETWORKS Common Stock 040413106 1,811 -588 -24.51 0 -100.00 0.0361
2020-08-17 2020-06-30 13F ARISTA NETWORKS Common Stock 040413106 2,399 -1,099 -31.42 504 -28.91 0.0476
2020-05-11 2020-03-31 13F ARISTA NETWORKS Common Stock 040413106 3,498 -4,317 -55.24 709 -59.37 0.0913
2020-02-04 2019-12-31 13F ARISTA NETWORKS Common Stock 040413106 7,815 6,131 364.07 1,745 322.52 0.1846
2019-11-07 2019-09-30 13F ARISTA NETWORKS Common Stock 040413106 1,684 0 0.00 413 -10.41 0.0426
2019-08-12 2019-06-30 13F ARISTA NETWORKS Common Stock 040413106 1,684 9 0.54 461 -12.69 0.0500
2019-05-10 2019-03-31 13F ARISTA NETWORKS Common Stock 040413106 1,675 40 2.45 528 53.04 0.0584
2019-02-06 2018-12-31 13F ARISTA NETWORKS Common Stock 040413106 1,635 -336 -17.05 345 -24.01 0.0292
2018-11-13 2018-09-30 13F ARISTA NETWORKS Common Stock 040413106 1,971 1,971 454 0.0364
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.