Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionCim, Llc
Latest Disclosed Ownership172,263 shares
Latest Disclosed Value $ 21,150,448
Cim, Llc reports 11.58% decrease in ownership of ANET / Arista Networks, Inc.

On May 18, 2026 - Cim, Llc filed a 13F-HR form disclosing ownership of 172,263 shares of Arista Networks, Inc. (MX:ANET) valued at $21,150,448 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 194,822 shares of Arista Networks, Inc.. This represents a change in shares of -11.58% 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)
2026-05-18 2026-03-31 13F ARISTA NETWORKS COM SHS 040413205 172,263 -22,559 -11.58 21,150 -17.15 3.0575
2026-02-18 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 194,822 -1,186 -0.61 25,528 -10.62 3.3471
2025-11-14 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 196,008 -1,847 -0.93 28,560 41.09 3.7351
2025-08-19 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 197,855 5,940 3.10 20,243 36.14 2.7252
2025-06-05 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 191,915 73,470 62.03 14,870 13.58 2.2091
2025-03-03 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 118,445 112,929 2,047.30 13,092 518.38 1.8646
2025-01-16 2024-09-30 13F ARISTA NETWORKS COM 040413106 5,516 16 0.29 2,117 17.22 0.3050
2024-09-06 2024-06-30 13F ARISTA NETWORKS COM 040413106 5,500 -5,512 -50.05 1,806 -43.44 0.2716
2024-09-06 2024-06-30 13F ARISTA NETWORKS COM 040413106 5,500 -5,512 1,806 0.2716
2024-05-20 2024-03-31 13F ARISTA NETWORKS COM 040413106 11,012 17 0.15 3,193 8.05 0.4832
2024-02-23 2023-12-31 13F ARISTA NETWORKS COM 040413106 10,995 -1,436 -11.55 2,955 29.27 0.4602
2024-05-17 2023-09-30 13F ARISTA NETWORKS COM 040413106 12,431 411 3.42 2,286 17.41 0.4356
2024-05-17 2023-06-30 13F ARISTA NETWORKS COM 040413106 12,020 -1,998 -14.25 1,948 -17.25 0.3639
2024-05-17 2023-03-31 13F ARISTA NETWORKS COM 040413106 14,018 -1,069 -7.09 2,353 14.28 0.4662
2023-02-10 2022-12-31 13F ARISTA NETWORKS COM 040413106 15,087 -398 -2.57 2,060 4.10 0.4086
2022-11-02 2022-09-30 13F ARISTA NETWORKS COM 040413106 15,485 -2,235 -12.61 1,978 8.38 0.4169
2022-07-11 2022-06-30 13F ARISTA NETWORKS COM 040413106 17,720 39 0.22 1,825 -18.82 0.3788
2022-04-12 2022-03-31 13F ARISTA NETWORKS COM 040413106 17,681 6,016 51.57 2,248 64.81 0.4184
2022-01-26 2021-12-31 13F ARISTA NETWORKS COM 040413106 11,665 7,492 179.54 1,364 -38.39 0.2546
2021-11-08 2021-09-30 13F ARISTA NETWORKS COM 040413106 4,173 74 1.81 2,214 43.02 0.3442
2021-08-09 2021-06-30 13F ARISTA NETWORKS COM 040413106 4,099 -266 -6.09 1,548 8.71 0.2518
2021-05-11 2021-03-31 13F ARISTA NETWORKS COM 040413106 4,365 81 1.89 1,424 3.26 0.2553
2021-02-08 2020-12-31 13F ARISTA NETWORKS COM 040413106 4,284 6 0.14 1,379 25.48 0.2546
2020-11-06 2020-09-30 13F ARISTA NETWORKS COM 040413106 4,278 1,642 62.29 1,099 98.38 0.2239
2020-08-07 2020-06-30 13F ARISTA NETWORKS COM 040413106 2,636 147 5.91 554 9.92 0.1623
2020-05-05 2020-03-31 13F ARISTA NETWORKS COM 040413106 2,489 60 2.47 504 2.02 0.1913
2020-02-13 2019-12-31 13F ARISTA NETWORKS COM 040413106 2,429 54 2.27 494 -12.87 0.1548
2019-10-15 2019-09-30 13F ARISTA NETWORKS COM 040413106 2,375 68 2.95 567 -5.34 0.1955
2019-07-22 2019-06-30 13F ARISTA NETWORKS COM 040413106 2,307 -1,529 -39.86 599 -50.33 0.2065
2019-05-06 2019-03-31 13F ARISTA NETWORKS COM 040413106 3,836 3,836 1,206 0.4433
2019-01-29 2018-12-31 13F ARISTA NETWORKS COM 040413106 0 -4,779 -100.00 0 -100.00
2018-10-29 2018-09-30 13F ARISTA NETWORKS COM 040413106 4,779 -28 -0.58 1,271 2.67 0.4645
2018-07-10 2018-06-30 13F ARISTA NETWORKS COM 040413106 4,807 -64 -1.31 1,238 -0.48 0.4462
2018-04-05 2018-03-31 13F ARISTA NETWORKS COM 040413106 4,871 -445 -8.37 1,244 -0.64 0.4825
2018-01-23 2017-12-31 13F ARISTA NETWORKS COM 040413106 5,316 -709 -11.77 1,252 9.63 0.4909
2017-11-03 2017-09-30 13F ARISTA NETWORKS COM 040413106 6,025 -70 -1.15 1,142 25.08 0.4728
2017-08-09 2017-06-30 13F ARISTA NETWORKS COM 040413106 6,095 6,095 913 0.3907
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.