Arista Networks, Inc.
US ˙ NYSE ˙ US0404132054

SecurityANET / Arista Networks, Inc.
InstitutionBessemer Group Inc
Latest Disclosed Ownership29,276 shares
Latest Disclosed Value $ 3,595
Bessemer Group Inc reports 15.97% increase in ownership of ANET / Arista Networks, Inc.

On May 6, 2026 - Bessemer Group Inc filed a 13F-HR form disclosing ownership of 29,276 shares of Arista Networks, Inc. (US:ANET) valued at $3,594,507 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 25,245 shares of Arista Networks, Inc.. This represents a change in shares of 15.97% during the quarter. The current value of the position is $5,104,856 USD.

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)
2026-05-06 2026-03-31 13F ARISTA NETWORKS SC 040413205 29,276 4,031 15.97 4 0.00 0.0057
2026-02-05 2025-12-31 13F ARISTA NETWORKS SC 040413205 25,245 -222 -0.87 3 0.00 0.0051
2025-11-05 2025-09-30 13F ARISTA NETWORKS SC 040413205 25,467 3,749 17.26 4 50.00 0.0057
2025-08-01 2025-06-30 13F ARISTA NETWORKS SC 040413205 21,718 -5,661 -20.68 2 0.00 0.0036
2025-04-23 2025-03-31 13F ARISTA NETWORKS SC 040413205 27,379 -42,930 -61.06 2 -71.43 0.0038
2025-02-13 2024-12-31 13F ARISTA NETWORKS SC 040413205 70,309 53,426 316.45 8 16.67 0.0127
2024-11-12 2024-09-30 13F ARISTA NETWORKS SC 040413106 16,883 974 6.12 6 20.00 0.0107
2024-08-13 2024-06-30 13F ARISTA NETWORKS SC 040413106 15,909 -2,768 -14.82 6 0.00 0.0098
2024-08-13 2024-03-31 13F/A-1 ARISTA NETWORKS SC 040413106 18,677 9,522 104.01 5 150.00 0.0098
2024-05-13 2024-03-31 13F ARISTA NETWORKS SC 040413106 18,677 9,522 5 0.0098
2024-02-09 2023-12-31 13F ARISTA NETWORKS SC 040413106 9,155 -633 -6.47 2 100.00 0.0042
2023-11-13 2023-09-30 13F ARISTA NETWORKS SC 040413106 9,788 601 6.54 2 0.00 0.0040
2023-08-10 2023-06-30 13F ARISTA NETWORKS SC 040413106 9,187 3,135 51.80 1 0.00 0.0032
2023-05-10 2023-03-31 13F ARISTA NETWORKS SC 040413106 6,052 766 14.49 1 0.0024
2023-02-13 2022-12-31 13F ARISTA NETWORKS SC 040413106 5,286 -228 -4.13 1 -100.00 0.0016
2022-11-09 2022-09-30 13F ARISTA NETWORKS SC 040413106 5,514 492 9.80 622 32.06 0.0016
2022-08-10 2022-06-30 13F ARISTA NETWORKS SC 040413106 5,022 -81 -1.59 471 -33.66 0.0012
2022-05-12 2022-03-31 13F ARISTA NETWORKS SC 040413106 5,103 -1,394 -21.46 710 -23.98 0.0015
2022-01-27 2021-12-31 13F ARISTA NETWORKS SC 040413106 6,497 4,813 285.81 934 61.59 0.0019
2021-11-12 2021-09-30 13F ARISTA NETWORKS SC 040413106 1,684 -123 -6.81 578 -11.89 0.0012
2021-08-06 2021-06-30 13F ARISTA NETWORKS SC 040413106 1,807 -121 -6.28 656 12.71 0.0014
2021-05-13 2021-03-31 13F ARISTA NETWORKS SC 040413106 1,928 -29 -1.48 582 2.46 0.0014
2021-02-09 2020-12-31 13F ARISTA NETWORKS SC 040413106 1,957 128 7.00 568 50.26 0.0015
2020-11-12 2020-09-30 13F ARISTA NETWORKS SC 040413106 1,829 -185 -9.19 378 -10.64 0.0011
2020-08-05 2020-06-30 13F ARISTA NETWORKS SC 040413106 2,014 1,955 3,313.56 423 3,425.00 0.0013
2020-04-30 2020-03-31 13F ARISTA NETWORKS SC 040413106 59 59 12 0.0000
2019-07-19 2019-06-30 13F ARISTA NETWORKS SC 040413106 0 -140 -100.00 0 -100.00
2019-05-13 2019-03-31 13F ARISTA NETWORKS SC 040413106 140 140 44 0.0002
2017-05-12 2017-03-31 13F ARISTA NETWORKS SC 040413106 0 -144 -100.00 0 -100.00
2017-02-07 2016-12-31 13F ARISTA NETWORKS SC 040413106 144 -159 -52.48 14 -46.15 0.0001
2016-11-10 2016-09-30 13F ARISTA NETWORKS SC 040413106 303 0 0.00 26 30.00 0.0001
2016-08-11 2016-06-30 13F ARISTA NETWORKS SC 040413106 303 0 0.00 20 5.26 0.0001
2016-05-11 2016-03-31 13F ARISTA NETWORKS SC 040413106 303 -75 -19.84 19 -34.48 0.0001
2016-02-12 2015-12-31 13F ARISTA NETWORKS SC 040413106 378 -137 -26.60 29 -9.37 0.0002
2015-11-16 2015-09-30 13F ARISTA NETWORKS SC 040413106 515 0 0.00 32 -23.81 0.0002
2015-08-14 2015-06-30 13F ARISTA NETWORKS SC 040413106 515 -47 -8.36 42 5.00 0.0002
2015-06-18 2015-03-31 13F/A-1 ARISTA NETWORKS SC 040413106 562 0 0.00 40 17.65 0.0002
2015-05-14 2015-03-31 13F ARISTA NETWORKS SC 040413106 562 40
2015-02-17 2014-12-31 13F ARISTA NETWORKS SC 040413106 562 0 0.00 34 -32.00 0.0002
2014-12-11 2014-09-30 13F/A-1 ARISTA NETWORKS SC 040413106 562 0 0.00 50 42.86 0.0003
2014-11-13 2014-09-30 13F ARISTA NETWORKS SC 040413106 562 0 50 0.0003
2014-08-13 2014-06-30 13F ARISTA NETWORKS SC 040413106 562 562 35 0.0002
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.