Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionHarbour Capital Advisors, LLC
Latest Disclosed Ownership21,575 shares
Latest Disclosed Value $ 3,834,525
Harbour Capital Advisors, LLC reports 0.68% increase in ownership of ANET / Arista Networks, Inc.

On April 29, 2026 - Harbour Capital Advisors, LLC filed a 13F-HR form disclosing ownership of 21,575 shares of Arista Networks, Inc. (MX:ANET) valued at $3,834,525 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 7, 2026 disclosing 21,429 shares of Arista Networks, Inc.. This represents a change in shares of 0.68% 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)
2026-04-29 2026-03-31 13F ARISTA NETWORKS COM SHS 040413205 21,575 146 0.68 3,835 33.96 0.7304
2026-01-07 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 21,429 -388 -1.78 2,863 -9.69 0.5828
2025-10-09 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 21,817 3,514 19.20 3,170 71.30 0.6486
2025-07-11 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 18,303 6 0.03 1,851 41.87 0.3900
2025-04-23 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 18,297 4,172 29.54 1,304 -19.85 0.3224
2025-01-13 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 14,125 11,634 467.04 1,627 60.61 0.3628
2024-10-16 2024-09-30 13F ARISTA NETWORKS COM 040413106 2,491 1,371 122.41 1,014 153.88 0.2339
2024-07-12 2024-06-30 13F ARISTA NETWORKS COM 040413106 1,120 0 0.00 400 22.77 0.0948
2024-04-16 2024-03-31 13F ARISTA NETWORKS COM 040413106 1,120 0 0.00 326 26.95 0.0807
2024-01-05 2023-12-31 13F ARISTA NETWORKS COM 040413106 1,120 0 0.00 257 24.27 0.0705
2023-10-05 2023-09-30 13F ARISTA NETWORKS COM 040413106 1,120 1,120 206 0.0618
2020-07-21 2020-06-30 13F ARISTA NETWORKS COM 040413106 0 -2,472 -100.00 0 -100.00
2020-04-08 2020-03-31 13F ARISTA NETWORKS COM 040413106 2,472 -45 -1.79 501 -2.15 0.2547
2020-01-22 2019-12-31 13F ARISTA NETWORKS COM 040413106 2,517 -2,614 -50.95 512 -58.24 0.1962
2019-10-30 2019-09-30 13F ARISTA NETWORKS COM 040413106 5,131 925 21.99 1,226 12.27 0.5185
2019-07-10 2019-06-30 13F ARISTA NETWORKS COM 040413106 4,206 1,690 67.17 1,092 38.05 0.4682
2019-04-24 2019-03-31 13F ARISTA NETWORKS COM 040413106 2,516 -44 -1.72 791 46.75 0.3493
2019-01-23 2018-12-31 13F ARISTA NETWORKS COM 040413106 2,560 -10 -0.39 539 -21.08 0.2677
2018-11-07 2018-09-30 13F ARISTA NETWORKS COM 040413106 2,570 -255 -9.03 683 -7.45 0.2750
2018-07-11 2018-06-30 13F ARISTA NETWORKS COM 040413106 2,825 -15 -0.53 738 1.79 0.3161
2018-04-18 2018-03-31 13F ARISTA NETWORKS COM 040413106 2,840 -2,015 -41.50 725 -36.63 0.3086
2018-01-24 2017-12-31 13F ARISTA NETWORKS COM 040413106 4,855 -300 -5.82 1,144 17.09 0.4749
2017-11-08 2017-09-30 13F ARISTA NETWORKS COM 040413106 5,155 -3,045 -37.13 977 -20.44 0.4259
2017-08-01 2017-06-30 13F/A-1 ARISTA NETWORKS COM 040413106 8,200 -830 -9.19 1,228 2.85 0.6098
2017-07-27 2017-06-30 13F ARISTA NETWORKS COM 040413106 1,228,278 1,219,248 8,200
2017-05-15 2017-03-31 13F ARISTA NETWORKS COM 040413106 9,030 -2,755 -23.38 1,194 4.74 0.5451
2017-02-03 2016-12-31 13F ARISTA NETWORKS COM 040413106 11,785 -75 -0.63 1,140 12.98 0.8173
2016-11-09 2016-09-30 13F ARISTA NETWORKS COM 040413106 11,860 2,385 25.17 1,009 65.41 0.6317
2016-08-26 2016-06-30 13F ARISTA NETWORKS COM 040413106 9,475 9,475 0.00 610 0.3426
2016-10-27 2015-06-30 13F ARISTA NETWORKS COM 040413106 0 -5,525 -100.00 0 -100.00
2016-11-28 2015-03-31 13F ARISTA NETWORKS COM 040413106 5,525 1,425 34.76 390 56.63 0.2721
2016-12-05 2014-12-31 13F ARISTA NETWORKS COM 040413106 4,100 0 0.00 249 -31.22 0.1784
2016-12-19 2014-09-30 13F ARISTA NETWORKS COM 040413106 4,100 4,100 362 0.2992
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.