Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionWeaver Capital Management LLC
Latest Disclosed Ownership20,451 shares
Latest Disclosed Value $ 2,510,974
Weaver Capital Management LLC reports 1.90% decrease in ownership of ANET / Arista Networks, Inc.

On April 17, 2026 - Weaver Capital Management LLC filed a 13F-HR form disclosing ownership of 20,451 shares of Arista Networks, Inc. (MX:ANET) valued at $2,510,974 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 22, 2026 disclosing 20,848 shares of Arista Networks, Inc.. This represents a change in shares of -1.90% 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)
2026-04-17 2026-03-31 13F ARISTA NETWORKS COM SHS 040413205 20,451 -397 -1.90 2,511 -8.09 0.5447
2026-01-22 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 20,848 656 3.25 2,732 -7.17 0.5768
2025-10-20 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 20,192 -641 -3.08 2,942 38.06 0.6368
2025-07-24 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 20,833 -616 -2.87 2,131 28.30 0.5205
2025-04-22 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 21,449 162 0.76 1,662 -29.38 0.4398
2025-01-27 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 21,287 16,033 305.16 2,353 16.67 0.6569
2024-10-22 2024-09-30 13F ARISTA NETWORKS COM 040413106 5,254 -730 -12.20 2,017 -3.86 0.6010
2024-08-02 2024-06-30 13F ARISTA NETWORKS COM 040413106 5,984 767 14.70 2,097 38.69 0.6742
2024-05-15 2024-03-31 13F ARISTA NETWORKS COM 040413106 5,217 -195 -3.60 1,513 18.68 0.5168
2024-05-15 2023-12-31 13F ARISTA NETWORKS COM 040413106 5,412 5,412 1,275 0.5053
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.