Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionVanguard Group Inc
Latest Disclosed Ownership23,772,739 shares
Ownership 7.56%
Vanguard Group Inc ownership in ANET / Arista Networks, Inc.

2024-11-12 - Vanguard Group Inc has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 23,772,739 shares of Arista Networks, Inc. (MX:ANET). This represents 7.56 percent ownership of the company. In their previous filing dated 2024-11-04 , Vanguard Group Inc had reported owning 23,772,739 shares, indicating a decrease of 0.00 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2024-11-12 2024-11-12 13G/A 23,772,739 23,772,739 0.00 7.56 0.00
2024-11-04 2024-11-04 13G/A 29,493,855 23,772,739 -19.40 7.56 -20.25
2024-02-13 2024-02-13 13G/A 27,025,757 29,493,855 9.13 9.48 7.24
2023-02-09 2023-02-09 13G/A 24,915,335 27,025,757 8.47 8.84 9.00
2022-02-09 2022-02-09 13G/A 5,806,247 24,915,335 329.11 8.11 5.74
2021-02-10 2021-02-10 13G/A 5,986,495 5,806,247 -3.01 7.67 -2.04
2020-02-12 2020-02-12 13G/A 5,568,472 5,986,495 7.51 7.83 6.10
2019-02-11 2019-02-11 13G/A 4,462,986 5,568,472 24.77 7.38 20.98
2018-02-08 2018-02-08 13G 4,462,986 6.10

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-01-29 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 101,189,629 1,188,799 1.19 13,258,877 -9.01 0.1922
2025-11-07 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 100,000,830 1,007,730 1.02 14,571,121 43.87 0.2181
2025-08-11 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 98,993,100 1,136,167 1.16 10,127,984 33.58 0.1639
2025-05-09 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 97,856,933 1,771,982 1.84 7,581,955 -28.61 0.1371
2025-02-11 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 96,084,951 72,311,318 304.17 10,620,270 16.39 0.1850
2024-11-13 2024-09-30 13F ARISTA NETWORKS COM 040413106 23,773,633 381,677 1.63 9,124,796 11.30 0.1634
2024-08-13 2024-06-30 13F ARISTA NETWORKS COM 040413106 23,391,956 -2,899,534 -11.03 8,198,413 7.53 0.1575
2024-05-10 2024-03-31 13F ARISTA NETWORKS COM 040413106 26,291,490 -3,203,386 -10.86 7,624,006 9.76 0.1510
2024-03-11 2023-12-31 13F/A-1 ARISTA NETWORKS COM 040413106 29,494,876 1,596,040 5.72 6,946,338 35.37 0.1517
2024-02-14 2023-12-31 13F ARISTA NETWORKS COM 040413106 29,493,855 1,595,019 6,946,098 0.1319
2023-12-18 2023-09-30 13F/A-1 ARISTA NETWORKS COM 040413106 27,898,836 84,212 0.30 5,131,433 13.84 0.1260
2023-11-14 2023-09-30 13F ARISTA NETWORKS COM 040413106 27,898,836 84,212 5,131,433 0.0227
2023-08-14 2023-06-30 13F ARISTA NETWORKS COM 040413106 27,814,624 588,387 2.16 4,507,638 -1.37 0.1069
2023-07-14 2023-03-31 13F/A-1 ARISTA NETWORKS COM 040413106 27,226,237 200,480 0.74 4,570,196 39.35 0.1164
2023-05-15 2023-03-31 13F ARISTA NETWORKS COM 040413106 27,224,929 199,172 4,569,977 0.1164
2023-02-10 2022-12-31 13F ARISTA NETWORKS COM 040413106 27,025,757 518,704 1.96 3,279,576 9.60 0.0893
2022-11-14 2022-09-30 13F ARISTA NETWORKS COM 040413106 26,507,053 770,172 2.99 2,992,380 24.03 0.0880
2022-08-12 2022-06-30 13F ARISTA NETWORKS COM 040413106 25,736,881 468,293 1.85 2,412,576 -31.30 0.0678
2022-05-13 2022-03-31 13F ARISTA NETWORKS COM 040413106 25,268,588 353,253 1.42 3,511,828 -1.95 0.0831
2022-02-14 2021-12-31 13F ARISTA NETWORKS COM 040413106 24,915,335 18,725,654 302.53 3,581,580 68.38 0.0813
2021-11-12 2021-09-30 13F ARISTA NETWORKS COM 040413106 6,189,681 95,092 1.56 2,127,021 -3.67 0.0528
2021-08-13 2021-06-30 13F ARISTA NETWORKS COM 040413106 6,094,589 -11,381 -0.19 2,208,131 19.79 0.0550
2021-05-14 2021-03-31 13F ARISTA NETWORKS COM 040413106 6,105,970 299,723 5.16 1,843,333 9.26 0.0499
2021-02-12 2020-12-31 13F ARISTA NETWORKS COM 040413106 5,806,247 -119,356 -2.01 1,687,122 37.59 0.0489
2020-11-16 2020-09-30 13F ARISTA NETWORKS COM 040413106 5,925,603 -98,963 -1.64 1,226,185 -3.09 0.0406
2020-08-14 2020-06-30 13F ARISTA NETWORKS COM 040413106 6,024,566 -108,314 -1.77 1,265,339 1.86 0.0449
2020-05-15 2020-03-31 13F ARISTA NETWORKS COM 040413106 6,132,880 146,385 2.45 1,242,214 2.02 0.0529
2020-02-14 2019-12-31 13F ARISTA NETWORKS COM 040413106 5,986,495 18,422 0.31 1,217,653 -14.60 0.0415
2019-11-14 2019-09-30 13F ARISTA NETWORKS COM 040413106 5,968,073 190,244 3.29 1,425,892 -4.94 0.0529
2019-08-14 2019-06-30 13F ARISTA NETWORKS COM 040413106 5,777,829 139,675 2.48 1,500,040 -15.39 0.0564
2019-05-15 2019-03-31 13F ARISTA NETWORKS COM 040413106 5,638,154 69,682 1.25 1,772,974 51.11 0.0696
2019-02-14 2018-12-31 13F ARISTA NETWORKS COM 040413106 5,568,472 136,267 2.51 1,173,276 -18.76 0.0527
2018-12-13 2018-09-30 13F/A-2 ARISTA NETWORKS COM 040413106 5,432,205 946,977 21.11 1,444,206 25.05 0.0564
2018-11-23 2018-09-30 13F/A-1 ARISTA NETWORKS COM 040413106 5,432,205 0 1,444,206 0.0564
2018-11-14 2018-09-30 13F ARISTA NETWORKS COM 040413106 5,432,205 946,977 1,444,206
2018-08-14 2018-06-30 13F ARISTA NETWORKS COM 040413106 4,485,228 221,994 5.21 1,154,900 6.11 0.0483
2018-05-15 2018-03-31 13F ARISTA NETWORKS COM 040413106 4,263,234 -199,752 -4.48 1,088,404 3.52 0.0476
2018-02-14 2017-12-31 13F ARISTA NETWORKS COM 040413106 4,462,986 485,940 12.22 1,051,392 39.43 0.0460
2017-11-14 2017-09-30 13F ARISTA NETWORKS COM 040413106 3,977,046 213,047 5.66 754,088 33.75 0.0352
2017-08-24 2017-06-30 13F/A-1 ARISTA NETWORKS COM 040413106 3,763,999 249,753 7.11 563,810 21.29 0.0278
2017-08-11 2017-06-30 13F ARISTA NETWORKS COM 040413106 3,763,999 249,753 563,810
2017-05-12 2017-03-31 13F ARISTA NETWORKS COM 040413106 3,514,246 399,688 12.83 464,830 54.23 0.0239
2017-02-14 2016-12-31 13F ARISTA NETWORKS COM 040413106 3,114,558 142,051 4.78 301,395 19.18 0.0168
2016-11-14 2016-09-30 13F ARISTA NETWORKS COM 040413106 2,972,507 139,728 4.93 252,901 38.67 0.0149
2016-08-10 2016-06-30 13F ARISTA NETWORKS COM 040413106 2,832,779 273,119 10.67 182,373 12.91 0.0113
2016-05-13 2016-03-31 13F ARISTA NETWORKS COM 040413106 2,559,660 81,441 3.29 161,514 -16.27 0.0105
2016-02-08 2015-12-31 13F ARISTA NETWORKS COM 040413106 2,478,219 52,850 2.18 192,904 29.98 0.0130
2015-11-12 2015-09-30 13F/A-1 ARISTA NETWORKS COM 040413106 2,425,369 608,662 33.50 148,408 -0.06 0.0063
2015-11-12 2015-09-30 13F/A-1 ARISTA NETWORKS COM 040413106 2,425,369 608,662 148,408 0.0063
2015-11-12 2015-09-30 13F ARISTA NETWORKS COM 040413106 11,638,920 507,150
2015-08-13 2015-06-30 13F ARISTA NETWORKS COM 040413106 1,816,707 387,438 27.11 148,498 47.31 0.0100
2015-05-15 2015-03-31 13F/A-1 ARISTA NETWORKS COM 040413106 1,429,269 1,421,556 18,430.65 100,807 21,439.96 0.0068
2015-05-14 2015-03-31 13F ARISTA NETWORKS COM 040413106 1,429,269 100,807
2015-02-12 2014-12-31 13F ARISTA NETWORKS COM 040413106 7,713 51 0.67 468 -30.87 0.0000
2014-11-12 2014-09-30 13F ARISTA NETWORKS COM 040413106 7,662 2,977 63.54 677 131.85 0.0001
2014-08-11 2014-06-30 13F ARISTA NETWORKS COM 040413106 4,685 4,685 292 0.0000
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.