Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionOppenheimer Asset Management Inc.
Latest Disclosed Ownership194,688 shares
Latest Disclosed Value $ 23,903,792
Oppenheimer Asset Management Inc. ownership in ANET / Arista Networks, Inc.

On April 23, 2026 - Oppenheimer Asset Management Inc. filed a 13F-HR form disclosing ownership of 194,688 shares of Arista Networks, Inc. (MX:ANET) valued at $23,903,792 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 0 shares of Arista Networks, Inc..

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)
2026-04-23 2026-03-31 13F ARISTA NETWORKS COM SHS 040413205 194,688 194,688 23,904 0.0683
2026-02-02 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 0 -100.00 0
2025-11-06 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 166,203 19,545 13.33 24,217 61.40 0.2664
2025-07-31 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 146,658 11,744 8.70 15,005 43.54 0.1721
2025-04-23 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 134,914 -220 -0.16 10,453 -30.01 0.1297
2025-02-05 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 135,134 113,243 517.30 14,936 77.77 0.1816
2024-11-05 2024-09-30 13F ARISTA NETWORKS COM 040413106 21,891 142 0.65 8,402 10.23 0.1012
2024-08-08 2024-06-30 13F ARISTA NETWORKS COM 040413106 21,749 1,472 7.26 7,623 29.65 0.0974
2024-05-07 2024-03-31 13F ARISTA NETWORKS COM 040413106 20,277 -9,297 -31.44 5,880 -15.58 0.0862
2024-02-13 2023-12-31 13F ARISTA NETWORKS COM 040413106 29,574 -1,560 -5.01 6,965 21.62 0.0969
2023-11-08 2023-09-30 13F ARISTA NETWORKS COM 040413106 31,134 20,297 187.29 5,726 226.08 0.0879
2023-08-03 2023-06-30 13F ARISTA NETWORKS COM 040413106 10,837 2,296 26.88 1,756 22.54 0.0258
2023-05-10 2023-03-31 13F ARISTA NETWORKS COM 040413106 8,541 1,313 18.17 1,434 63.40 0.0221
2023-02-07 2022-12-31 13F ARISTA NETWORKS COM 040413106 7,228 -5,131 -41.52 877 -37.13 0.0141
2022-11-14 2022-09-30 13F ARISTA NETWORKS COM 040413106 12,359 -5,737 -31.70 1,395 -17.80 0.0246
2022-08-08 2022-06-30 13F ARISTA NETWORKS COM 040413106 18,096 -7,265 -28.65 1,697 -51.87 0.0284
2022-05-12 2022-03-31 13F ARISTA NETWORKS COM 040413106 25,361 -7,855 -23.65 3,526 -26.17 0.0500
2022-02-02 2021-12-31 13F ARISTA NETWORKS COM 040413106 33,216 20,251 156.20 4,776 7.21 0.0633
2021-11-12 2021-09-30 13F ARISTA NETWORKS COM 040413106 12,965 -401 -3.00 4,455 -7.99 0.0633
2021-08-03 2021-06-30 13F ARISTA NETWORKS COM 040413106 13,366 1,131 9.24 4,842 31.11 0.0690
2021-05-17 2021-03-31 13F ARISTA NETWORKS COM 040413106 12,235 2,243 22.45 3,693 27.21 0.0572
2021-02-11 2020-12-31 13F ARISTA NETWORKS COM 040413106 9,992 5,454 120.19 2,903 208.83 0.0485
2020-11-13 2020-09-30 13F ARISTA NETWORKS COM 040413106 4,538 4,538 940 0.0183
2020-08-11 2020-06-30 13F ARISTA NETWORKS COM 040413106 0 -342 -100.00 0 -100.00
2020-05-08 2020-03-31 13F ARISTA NETWORKS COM 040413106 342 -1,326 -79.50 69 -79.71 0.0017
2020-02-07 2019-12-31 13F ARISTA NETWORKS COM 040413106 1,668 -6,546 -79.69 340 -82.68 0.0072
2019-10-31 2019-09-30 13F ARISTA NETWORKS COM 040413106 8,214 5,688 225.18 1,963 199.24 0.0436
2019-08-09 2019-06-30 13F ARISTA NETWORKS COM 040413106 2,526 2,500 9,615.38 656 8,100.00 0.0145
2019-04-24 2019-03-31 13F ARISTA NETWORKS COM 040413106 26 -672 -96.28 8 -94.56 0.0002
2019-01-30 2018-12-31 13F ARISTA NETWORKS COM 040413106 698 698 147 0.0036
2018-10-26 2018-09-30 13F ARISTA NETWORKS COM 040413106 0 -4,146 -100.00 0 -100.00
2018-08-10 2018-06-30 13F ARISTA NETWORKS COM 040413106 4,146 -111 -2.61 1,068 -1.75 0.0261
2018-05-09 2018-03-31 13F ARISTA NETWORKS COM 040413106 4,257 -80 -1.84 1,087 32.24 0.0273
2018-02-07 2017-12-31 13F ARISTA NETWORKS COM 040413106 4,337 0 0.00 822 0.00 0.0218
2017-11-14 2017-09-30 13F ARISTA NETWORKS COM 040413106 4,337 -90 -2.03 822 23.98 0.0214
2017-08-09 2017-06-30 13F ARISTA NETWORKS COM 040413106 4,427 -2,065 -31.81 663 -22.82 0.0183
2017-05-15 2017-03-31 13F ARISTA NETWORKS COM 040413106 6,492 6,492 859 0.0245
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.