Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionBeacon Financial Group
Latest Disclosed Ownership12,975 shares
Latest Disclosed Value $ 1,593,071
Beacon Financial Group ownership in ANET / Arista Networks, Inc.

On April 30, 2026 - Beacon Financial Group filed a 13F-HR form disclosing ownership of 12,975 shares of Arista Networks, Inc. (MX:ANET) valued at $1,593,071 USD as of March 31, 2026. The entity filed a previous 13F-HR on April 1, 2026 disclosing 12,223 shares of Arista Networks, Inc.. This represents a change in shares of 6.15% during the quarter.

Beacon Financial Group has a history of taking positions in derivatives of the underlying security (ANET) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:ANET / Arista Networks, Inc. Historical Put/Call Ratio
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)
2026-04-30 2026-03-31 13F ARISTA NETWORKS COM SHS 040413205 12,975 752 6.15 1,593 -0.50 0.1589
2026-04-01 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 12,223 73 0.60 1,602 -9.55 0.1593
2025-10-08 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 12,150 31 0.26 1,770 42.86 0.1741
2025-07-09 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 12,119 315 2.67 1,240 35.56 0.1291
2025-04-10 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 11,804 -1,657 -12.31 915 -38.53 0.0999
2025-01-29 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 13,461 9,860 273.81 1,488 7.68 0.1601
2024-11-12 2024-09-30 13F ARISTA NETWORKS COM 040413106 3,601 90 2.56 1,382 12.28 0.1495
2024-08-06 2024-06-30 13F ARISTA NETWORKS COM 040413106 3,511 -199 -5.36 1,230 14.42 0.1401
2024-05-07 2024-03-31 13F ARISTA NETWORKS COM 040413106 3,710 -240 -6.08 1,076 15.59 0.1234
2024-02-23 2023-12-31 13F ARISTA NETWORKS COM 040413106 3,950 145 3.81 930 0.1134
2023-10-16 2023-09-30 13F ARISTA NETWORKS COM 040413106 3,805 46 1.22 1 0.1055
2023-07-20 2023-06-30 13F ARISTA NETWORKS COM 040413106 3,759 -1,218 -24.47 1 0.0812
2023-04-14 2023-03-31 13F ARISTA NETWORKS COM 040413106 4,977 4 0.08 1 0.1133
2023-01-19 2022-12-31 13F ARISTA NETWORKS COM 040413106 4,973 72 1.47 1 -100.00 0.0823
2022-10-13 2022-09-30 13F ARISTA NETWORKS COM 040413106 4,901 -39 -0.79 562 15.16 0.0874
2022-07-19 2022-06-30 13F ARISTA NETWORKS COM 040413106 4,940 -128 -2.53 488 -31.46 0.0726
2022-04-08 2022-03-31 13F ARISTA NETWORKS COM 040413106 5,068 -192 -3.65 712 -4.81 0.0949
2022-01-07 2021-12-31 13F ARISTA NETWORKS COM 040413106 5,260 5,260 748 0.0973
2020-01-17 2019-12-31 13F ARISTA NETWORKS COM 040413106 0 -1,093 -100.00 0 -100.00
2019-10-15 2019-09-30 13F ARISTA NETWORKS COM 040413106 1,093 -77 -6.58 265 -12.83 0.0451
2019-07-15 2019-06-30 13F ARISTA NETWORKS COM 040413106 1,170 -54 -4.41 304 -21.04 0.0519
2019-04-18 2019-03-31 13F ARISTA NETWORKS COM 040413106 1,224 1,224 385 0.0630
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-01-29 2024-12-31 13F ARISTA NETWORKS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-12 2024-09-30 13F ARISTA NETWORKS COM Call 200 0.00 77 8.57 n/a n/a n/a
2024-08-06 2024-06-30 13F ARISTA NETWORKS COM Call 200 0.00 70 22.81 n/a n/a n/a
2024-05-07 2024-03-31 13F ARISTA NETWORKS COM Call 200 58 n/a n/a n/a
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.