Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionSwedbank AB
Latest Disclosed Ownership6,448,758 shares
Latest Disclosed Value $ 791,778,509
Swedbank AB reports 12.44% decrease in ownership of ANET / Arista Networks, Inc.

On April 29, 2026 - Swedbank AB filed a 13F-HR form disclosing ownership of 6,448,758 shares of Arista Networks, Inc. (MX:ANET) valued at $791,778,509 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 9, 2026 disclosing 7,364,990 shares of Arista Networks, Inc.. This represents a change in shares of -12.44% 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 6,448,758 -916,232 -12.44 791,779 -17.95 0.4676
2026-02-09 2025-12-31 13F/A-1 ARISTA NETWORKS COM SHS 040413205 7,364,990 258,567 3.64 965,035 -6.80 0.9336
2026-02-03 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 7,364,990 258,567 965,035 0.5246
2025-10-15 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 7,106,423 -554,224 -7.23 1,035,477 32.12 1.0496
2025-07-10 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 7,660,647 579,256 8.18 783,761 42.85 0.8810
2025-04-14 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 7,081,391 330,598 4.90 548,666 -26.47 0.7304
2025-01-22 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 6,750,793 5,034,022 293.23 746,165 13.24 0.9175
2024-10-11 2024-09-30 13F ARISTA NETWORKS COM 040413106 1,716,771 1,036 0.06 658,931 9.58 0.8415
2024-07-11 2024-06-30 13F ARISTA NETWORKS COM 040413106 1,715,735 -83,583 -4.65 601,331 115,318.43 0.8038
2024-05-13 2024-03-31 13F ARISTA NETWORKS COM 040413106 1,799,318 59,815 3.44 522 -99.87 0.8785
2024-12-06 2023-12-31 13F ARISTA NETWORKS COM 040413106 1,739,503 -104,783 -5.68 409,670 20.77 0.6596
2024-12-06 2023-09-30 13F ARISTA NETWORKS COM 040413106 1,844,286 -67,333 -3.52 339,220 9.50 0.5876
2024-12-06 2023-06-30 13F ARISTA NETWORKS COM 040413106 1,911,619 455,829 31.31 309,797 26.77 0.5252
2024-12-06 2023-03-31 13F ARISTA NETWORKS COM 040413106 1,455,790 -109,874 -7.02 244,369 28.62 0.4819
2024-12-06 2022-12-31 13F ARISTA NETWORKS COM 040413106 1,565,664 -122,492 -7.26 189,993 -0.31 0.4179
2024-12-06 2022-09-30 13F ARISTA NETWORKS COM 040413106 1,688,156 -56,972 -3.26 190,576 16.50 0.4524
2024-12-06 2022-06-30 13F ARISTA NETWORKS COM 040413106 1,745,128 -203,476 -10.44 163,588 -39.59 0.3693
2024-12-06 2022-03-31 13F ARISTA NETWORKS COM 040413106 1,948,604 -325,481 -14.31 270,817 -16.81 0.5022
2024-12-06 2021-12-31 13F ARISTA NETWORKS COM 040413106 2,274,085 1,651,930 265.52 325,535 52.26 0.5442
2024-12-06 2021-09-30 13F ARISTA NETWORKS COM 040413106 622,155 12 0.00 213,797 -5.15 0.3992
2024-12-06 2021-06-30 13F ARISTA NETWORKS COM 040413106 622,143 -300,091 -32.54 225,409 -19.04 0.4228
2024-12-06 2021-03-31 13F ARISTA NETWORKS COM 040413106 922,234 922,234 278,413 0.5784
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.