Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionJackson Square Capital, Llc
Latest Disclosed Ownership75,186 shares
Latest Disclosed Value $ 9,231,337
Jackson Square Capital, Llc reports 2.06% increase in ownership of ANET / Arista Networks, Inc.

On April 13, 2026 - Jackson Square Capital, Llc filed a 13F-HR form disclosing ownership of 75,186 shares of Arista Networks, Inc. (MX:ANET) valued at $9,231,337 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 73,671 shares of Arista Networks, Inc.. This represents a change in shares of 2.06% 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)
2026-04-13 2026-03-31 13F ARISTA NETWORKS COM SHS 040413205 75,186 1,515 2.06 9,231 -4.37 1.9354
2026-01-21 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 73,671 -1,838 -2.43 9,653 -12.26 1.9097
2025-10-09 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 75,509 -6,690 -8.14 11,002 30.84 2.3995
2025-07-10 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 82,199 2,042 2.55 8,410 35.41 1.8676
2025-04-16 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 80,157 -14,755 -15.55 6,211 -40.80 2.0192
2025-01-15 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 94,912 67,462 245.76 10,491 -0.43 2.5280
2024-10-31 2024-09-30 13F ARISTA NETWORKS COM 040413106 27,450 738 2.76 10,536 12.53 2.6146
2024-08-05 2024-06-30 13F ARISTA NETWORKS COM 040413106 26,712 1,481 5.87 9,362 27.97 2.3036
2024-04-16 2024-03-31 13F ARISTA NETWORKS COM 040413106 25,231 19,876 371.17 7,316 480.17 1.8837
2024-01-09 2023-12-31 13F ARISTA NETWORKS COM 040413106 5,355 -446 -7.69 1,261 18.29 0.4058
2023-10-25 2023-09-30 13F ARISTA NETWORKS COM 040413106 5,801 -13,053 -69.23 1,067 -65.11 0.4284
2023-07-28 2023-06-30 13F ARISTA NETWORKS COM 040413106 18,854 -2,442 -11.47 3,055 -14.52 1.2274
2023-04-21 2023-03-31 13F ARISTA NETWORKS COM 040413106 21,296 14,081 195.16 3,575 308.46 1.6003
2023-01-23 2022-12-31 13F ARISTA NETWORKS COM 040413106 7,215 -735 -9.25 876 -2.45 0.4122
2022-10-13 2022-09-30 13F ARISTA NETWORKS COM 040413106 7,950 -1,248 -13.57 897 4.06 0.4376
2022-07-25 2022-06-30 13F ARISTA NETWORKS COM 040413106 9,198 -24,263 -72.51 862 -81.46 0.3642
2022-04-20 2022-03-31 13F ARISTA NETWORKS COM 040413106 33,461 -2,671 -7.39 4,650 -10.47 1.4503
2022-01-19 2021-12-31 13F ARISTA NETWORKS COM 040413106 36,132 33,428 1,236.24 5,194 459.10 1.4941
2021-10-28 2021-09-30 13F/A-1 ARISTA NETWORKS COM 040413106 2,704 -1,082 -28.58 929 -32.29 0.3020
2021-10-21 2021-09-30 13F ARISTA NETWORKS COM 040413106 2,704 -1,082 929 0.3020
2021-07-20 2021-06-30 13F ARISTA NETWORKS COM 040413106 3,786 54 1.45 1,372 21.74 0.4408
2021-05-18 2021-03-31 13F ARISTA NETWORKS COM 040413106 3,732 3,732 1,127 0.4303
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.