Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership471,701 shares
Latest Disclosed Value $ 57,915,449
Trexquant Investment LP reports 219.60% increase in ownership of ANET / Arista Networks, Inc.

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 471,701 shares of Arista Networks, Inc. (MX:ANET) valued at $57,915,449 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 147,593 shares of Arista Networks, Inc.. This represents a change in shares of 219.60% 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)
2026-05-15 2026-03-31 13F ARISTA NETWORKS COM SHS 040413205 471,701 324,108 219.60 57,915 199.47 0.4162
2026-02-17 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 147,593 -66,253 -30.98 19,339 -37.93 0.1724
2025-11-14 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 213,846 -6,343 -2.88 31,160 38.32 0.3208
2025-08-12 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 220,189 -467,080 -67.96 22,528 -57.69 0.2541
2025-05-14 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 687,269 409,686 147.59 53,250 73.56 0.6195
2025-02-12 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 277,583 205,971 287.62 30,681 11.62 0.3576
2024-11-12 2024-09-30 13F ARISTA NETWORKS COM 040413106 71,612 42,985 150.16 27,486 173.96 0.3480
2024-08-13 2024-06-30 13F ARISTA NETWORKS COM 040413106 28,627 6,044 26.76 10,033 53.22 0.1531
2024-05-14 2024-03-31 13F ARISTA NETWORKS COM 040413106 22,583 1,702 8.15 6,549 33.17 0.1306
2024-02-09 2023-12-31 13F ARISTA NETWORKS COM 040413106 20,881 -14,192 -40.46 4,918 -23.77 0.1107
2023-11-13 2023-09-30 13F ARISTA NETWORKS COM 040413106 35,073 31,196 804.64 6,451 927.07 0.1618
2023-08-11 2023-06-30 13F ARISTA NETWORKS COM 040413106 3,877 3,877 628 0.0165
2023-05-15 2023-03-31 13F ARISTA NETWORKS COM 040413106 0 -110,993 -100.00 0 -100.00
2023-02-13 2022-12-31 13F ARISTA NETWORKS COM 040413106 110,993 58,711 112.30 13,469 128.21 0.3819
2022-11-14 2022-09-30 13F ARISTA NETWORKS COM 040413106 52,282 -38,222 -42.23 5,902 -30.43 0.2075
2022-08-11 2022-06-30 13F ARISTA NETWORKS COM 040413106 90,504 90,504 8,484 0.3802
2022-02-11 2021-12-31 13F ARISTA NETWORKS COM 040413106 0 -611 -100.00 0 -100.00
2021-11-12 2021-09-30 13F ARISTA NETWORKS COM 040413106 611 -951 -60.88 210 -62.90 0.0167
2021-08-12 2021-06-30 13F ARISTA NETWORKS COM 040413106 1,562 1,562 566 0.0478
2020-11-06 2020-09-30 13F ARISTA NETWORKS COM 040413106 0 -3,024 -100.00 0 -100.00
2020-08-07 2020-06-30 13F ARISTA NETWORKS COM 040413106 3,024 3,024 635 0.0441
2020-02-12 2019-12-31 13F ARISTA NETWORKS COM 040413106 0 -7,025 -100.00 0 -100.00
2020-02-18 2019-09-30 13F/A-1 ARISTA NETWORKS COM 040413106 7,025 7,025 1,678 0.1449
2019-11-08 2019-09-30 13F ARISTA NETWORKS COM 040413106 7,025 7,025 1,678 144,924.5321
2019-02-13 2018-12-31 13F ARISTA NETWORKS COM 040413106 0 -15,577 -100.00 0 -100.00
2018-11-09 2018-09-30 13F ARISTA NETWORKS COM 040413106 15,577 6,523 72.05 4,141 77.65 0.3113
2018-08-07 2018-06-30 13F ARISTA NETWORKS COM 040413106 9,054 9,054 -41.88 2,331 -43.71 0.1615
2018-05-03 2018-03-31 13F ARISTA NETWORKS COM 040413106 0 -1,599 -100.00 0 -100.00
2018-02-08 2017-12-31 13F ARISTA NETWORKS COM 040413106 1,599 1,599 377 0.0414
2017-05-08 2017-03-31 13F ARISTA NETWORKS COM 040413106 0 -12,476 -100.00 0 -100.00
2017-02-10 2016-12-31 13F ARISTA NETWORKS COM 040413106 12,476 12,476 1,207 0.1909
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.