Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionCIBC Asset Management Inc
Latest Disclosed Ownership269,672 shares
Latest Disclosed Value $ 33,110,328
CIBC Asset Management Inc reports 7.43% increase in ownership of ANET / Arista Networks, Inc.

On May 12, 2026 - CIBC Asset Management Inc filed a 13F-HR form disclosing ownership of 269,672 shares of Arista Networks, Inc. (MX:ANET) valued at $33,110,328 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 251,018 shares of Arista Networks, Inc.. This represents a change in shares of 7.43% 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)
2026-05-12 2026-03-31 13F ARISTA NETWORKS COM SHS 040413205 269,672 18,654 7.43 33,110 0.67 0.0809
2026-02-10 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 251,018 101,231 67.58 32,891 50.70 0.0794
2025-10-31 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 149,787 -41 -0.03 21,825 42.39 0.0632
2025-08-14 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 149,828 -12,744 -7.84 15,329 21.69 0.0474
2025-05-13 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 162,572 -1,403 -0.86 12,596 -30.50 0.0418
2025-01-31 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 163,975 124,835 318.94 18,124 20.65 0.0594
2024-11-06 2024-09-30 13F ARISTA NETWORKS COM 040413106 39,140 3,322 9.27 15,023 19.67 0.0487
2024-08-01 2024-06-30 13F ARISTA NETWORKS COM 040413106 35,818 -1,010 -2.74 12,553 17.55 0.0447
2024-05-09 2024-03-31 13F ARISTA NETWORKS COM 040413106 36,828 2,669 7.81 10,679 32.76 0.0370
2024-02-13 2023-12-31 13F ARISTA NETWORKS COM 040413106 34,159 -1,377 -3.87 8,045 23.07 0.0300
2023-10-30 2023-09-30 13F ARISTA NETWORKS COM 040413106 35,536 421 1.20 6,536 14.87 0.0271
2023-08-14 2023-06-30 13F ARISTA NETWORKS COM 040413106 35,115 -296 -0.84 5,691 -4.27 0.0218
2023-05-12 2023-03-31 13F ARISTA NETWORKS COM 040413106 35,411 -989 -2.72 5,944 34.57 0.0236
2023-02-13 2022-12-31 13F ARISTA NETWORKS COM 040413106 36,400 1,674 4.82 4,417 12.68 0.0185
2022-11-03 2022-09-30 13F ARISTA NETWORKS COM 040413106 34,726 4,018 13.08 3,920 36.16 0.0172
2022-08-09 2022-06-30 13F ARISTA NETWORKS COM 040413106 30,708 -8,668 -22.01 2,879 -47.39 0.0117
2022-05-06 2022-03-31 13F ARISTA NETWORKS COM 040413106 39,376 14,855 60.58 5,472 55.23 0.0192
2022-02-08 2021-12-31 13F ARISTA NETWORKS COM 040413106 24,521 18,685 320.17 3,525 75.81 0.0129
2021-11-09 2021-09-30 13F ARISTA NETWORKS COM 040413106 5,836 -7,558 -56.43 2,005 -58.69 0.0081
2021-08-16 2021-06-30 13F ARISTA NETWORKS COM 040413106 13,394 1,101 8.96 4,853 30.77 0.0196
2021-05-14 2021-03-31 13F ARISTA NETWORKS COM 040413106 12,293 6,636 117.31 3,711 125.73 0.0158
2021-02-03 2020-12-31 13F ARISTA NETWORKS COM 040413106 5,657 -7 -0.12 1,644 40.27 0.0077
2020-11-05 2020-09-30 13F ARISTA NETWORKS COM 040413106 5,664 117 2.11 1,172 0.60 0.0060
2020-07-28 2020-06-30 13F ARISTA NETWORKS COM 040413106 5,547 70 1.28 1,165 5.05 0.0068
2020-04-30 2020-03-31 13F ARISTA NETWORKS COM 040413106 5,477 -571 -9.44 1,109 -9.84 0.0078
2020-02-14 2019-12-31 13F ARISTA NETWORKS COM 040413106 6,048 256 4.42 1,230 -11.13 0.0070
2019-10-30 2019-09-30 13F ARISTA NETWORKS COM 040413106 5,792 -178 -2.98 1,384 -10.71 0.0081
2019-08-05 2019-06-30 13F ARISTA NETWORKS COM 040413106 5,970 156 2.68 1,550 -15.21 0.0093
2019-05-06 2019-03-31 13F ARISTA NETWORKS COM 040413106 5,814 251 4.51 1,828 55.97 0.0113
2019-02-12 2018-12-31 13F ARISTA NETWORKS COM 040413106 5,563 9 0.16 1,172 -20.65 0.0086
2018-11-02 2018-09-30 13F ARISTA NETWORKS COM 040413106 5,554 2,295 70.42 1,477 76.04 0.0091
2018-08-09 2018-06-30 13F ARISTA NETWORKS COM 040413106 3,259 196 6.40 839 7.29 0.0052
2018-04-30 2018-03-31 13F ARISTA NETWORKS COM 040413106 3,063 -31 -1.00 782 7.27 0.0051
2018-02-02 2017-12-31 13F ARISTA NETWORKS COM 040413106 3,094 292 10.42 729 37.29 0.0045
2017-11-06 2017-09-30 13F ARISTA NETWORKS COM 040413106 2,802 624 28.65 531 62.88 0.0033
2017-07-27 2017-06-30 13F ARISTA NETWORKS COM 040413106 2,178 0 0.00 326 13.19 0.0023
2017-05-12 2017-03-31 13F ARISTA NETWORKS COM 040413106 2,178 0 0.00 288 36.49 0.0020
2017-02-08 2016-12-31 13F ARISTA NETWORKS COM 040413106 2,178 2,178 211 0.0015
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.