Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionWhittier Trust Co
Latest Disclosed Ownership4,736 shares
Latest Disclosed Value $ 597,920
Whittier Trust Co reports 7.00% increase in ownership of ANET / Arista Networks, Inc.

On April 28, 2026 - Whittier Trust Co filed a 13F-HR form disclosing ownership of 4,736 shares of Arista Networks, Inc. (MX:ANET) valued at $597,920 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 4,426 shares of Arista Networks, Inc.. This represents a change in shares of 7.00% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-28 2026-03-31 13F ARISTA NETWORKS common 040413205 4,736 310 7.00 598 1.88 0.0035
2026-01-26 2025-12-31 13F ARISTA NETWORKS common 040413205 4,426 -235 -5.04 587 -13.57 0.0064
2025-10-31 2025-09-30 13F ARISTA NETWORKS common 040413205 4,661 2,125 83.79 678 161.78 0.0077
2025-07-30 2025-06-30 13F ARISTA NETWORKS INC COM SHS US LARGE-CAP EQUITIES 040413205 2,536 0 0.00 259 32.14 0.0031
2025-05-02 2025-03-31 13F ARISTA NETWORKS INC COM SHS US LARGE-CAP EQUITIES 040413205 2,536 -64 -2.46 196 -31.71 0.0027
2025-02-11 2024-12-31 13F ARISTA NETWORKS INC COM SHS US LARGE-CAP EQUITIES 040413205 2,600 1,966 310.09 287 18.11 0.0038
2024-10-21 2024-09-30 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 634 1 0.16 243 9.95 0.0033
2024-07-29 2024-06-30 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 633 0 0.00 222 20.77 0.0031
2024-05-02 2024-03-31 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 633 0 0.00 184 22.82 0.0027
2024-01-11 2023-12-31 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 633 -24 -3.65 149 24.17 0.0024
2023-10-27 2023-09-30 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 657 24 3.79 121 17.65 0.0021
2023-07-24 2023-06-30 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 633 73 13.04 103 8.51 0.0018
2023-04-21 2023-03-31 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 560 0 0.00 94 40.30 0.0017
2023-01-25 2022-12-31 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 560 -56 -9.09 68 -4.29 0.0013
2022-10-21 2022-09-30 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 616 -50 -7.51 70 12.90 0.0015
2022-07-28 2022-06-30 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 666 50 8.12 62 -27.91 0.0013
2022-04-29 2022-03-31 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 616 0 0.00 86 -3.37 0.0015
2022-01-19 2021-12-31 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 616 462 300.00 89 67.92 0.0014
2021-11-01 2021-09-30 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 154 0 0.00 53 -5.36 0.0010
2021-07-29 2021-06-30 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 154 0 0.00 56 21.74 0.0010
2021-04-26 2021-03-31 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 154 0 0.00 46 2.22 0.0009
2021-01-29 2020-12-31 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 154 0 0.00 45 40.63 0.0010
2020-10-30 2020-09-30 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 154 14 10.00 32 10.34 0.0008
2020-07-10 2020-06-30 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 140 0 0.00 29 3.57 0.0008
2020-04-27 2020-03-31 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 140 -20 -12.50 28 -15.15 0.0009
2020-01-31 2019-12-31 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 160 20 14.29 33 0.00 0.0009
2019-10-18 2019-09-30 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 140 0 0.00 33 -8.33 0.0009
2019-07-23 2019-06-30 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 140 0 0.00 36 -18.18 0.0011
2019-04-29 2019-03-31 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 140 140 44 0.0013
2019-02-07 2018-12-31 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 0 -140 -100.00 0 -100.00
2018-10-23 2018-09-30 13F ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 140 0 0.00 37 2.78 0.0012
2018-07-27 2018-06-30 13F/A-1 ARISTA NETWORKS INC COM US MID-CAP EQUITIES 040413106 140 140 36 0.0012
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.