Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionVerition Fund Management LLC
Latest Disclosed Ownership66,380 shares
Latest Disclosed Value $ 8,150,136
Verition Fund Management LLC ownership in ANET / Arista Networks, Inc.

On May 15, 2026 - Verition Fund Management LLC filed a 13F-HR form disclosing ownership of 66,380 shares of Arista Networks, Inc. (MX:ANET) valued at $8,150,136 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 85,142 shares of Arista Networks, Inc.. This represents a change in shares of -22.04% during the quarter.

Verition Fund Management LLC 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 and put options representing 4,900 of underlying shares valued at $601,622 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)
2026-05-15 2026-03-31 13F ARISTA NETWORKS COM SHS 040413205 66,380 -18,762 -22.04 8,150 -26.95 0.0528
2026-02-13 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 85,142 -17,445 -17.01 11,156 -25.36 0.0438
2025-11-14 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 102,587 -49,549 -32.57 14,948 -3.97 0.0617
2025-08-14 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 152,136 -14,931 -8.94 15,565 20.25 0.0693
2025-05-15 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 167,067 58,935 54.50 12,944 8.31 0.0603
2025-02-14 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 108,132 77,175 249.30 11,952 0.59 0.0473
2024-11-14 2024-09-30 13F ARISTA NETWORKS COM 040413106 30,957 3,362 12.18 11,882 22.85 0.0598
2024-08-14 2024-06-30 13F ARISTA NETWORKS COM 040413106 27,595 1,331 5.07 9,671 26.98 0.0529
2024-05-14 2024-03-31 13F ARISTA NETWORKS COM 040413106 26,264 18,869 255.16 7,616 337.45 0.0521
2024-02-14 2023-12-31 13F ARISTA NETWORKS COM 040413106 7,395 -24,569 -76.86 1,742 -70.39 0.0136
2023-11-14 2023-09-30 13F ARISTA NETWORKS COM 040413106 31,964 8,178 34.38 5,879 52.54 0.0686
2023-08-14 2023-06-30 13F ARISTA NETWORKS COM 040413106 23,786 13,192 124.52 3,855 116.76 0.0514
2023-05-15 2023-03-31 13F ARISTA NETWORKS COM 040413106 10,594 2,286 27.52 1,778 76.39 0.0246
2023-02-14 2022-12-31 13F ARISTA NETWORKS COM 040413106 8,308 -7,851 -48.59 1,008 -44.77 0.0158
2023-01-18 2022-09-30 13F/A-1 ARISTA NETWORKS COM 040413106 16,159 3,994 32.83 1,825 60.09 0.0204
2022-11-14 2022-09-30 13F ARISTA NETWORKS COM 040413106 16,159 3,994 1,825 0.0207
2022-08-30 2022-06-30 13F/A-1 ARISTA NETWORKS COM 040413106 12,165 8,599 241.14 1,140 129.84 0.0225
2022-08-15 2022-06-30 13F ARISTA NETWORKS COM 040413106 12,165 8,599 1,140 0.0226
2022-06-02 2022-03-31 13F/A-1 ARISTA NETWORKS COM 040413106 3,566 -6,747 -65.42 496 -66.55 0.0060
2022-05-13 2022-03-31 13F ARISTA NETWORKS COM 040413106 3,566 -6,747 496 0.0060
2022-05-03 2021-12-31 13F/A-1 ARISTA NETWORKS COM 040413106 10,313 3,970 62.59 1,483 -31.97 0.0101
2022-02-14 2021-12-31 13F ARISTA NETWORKS COM 040413106 66,258 59,915 9,525 0.0617
2021-11-15 2021-09-30 13F ARISTA NETWORKS COM 040413106 6,343 4,316 212.93 2,180 270.12 0.0189
2021-02-16 2020-12-31 13F ARISTA NETWORKS COM 040413106 2,027 2,027 589 0.0052
2019-05-15 2019-03-31 13F ARISTA NETWORKS COM 040413106 0 -3,000 -100.00 0 -100.00
2019-02-14 2018-12-31 13F ARISTA NETWORKS COM 040413106 3,000 -9,222 -75.45 632 -80.55 0.0453
2018-11-14 2018-09-30 13F ARISTA NETWORKS COM 040413106 12,222 6,453 111.86 3,249 118.79 0.1163
2018-08-15 2018-06-30 13F ARISTA NETWORKS COM 040413106 5,769 -120 -2.04 1,485 -1.20 0.0906
2018-05-15 2018-03-31 13F ARISTA NETWORKS COM 040413106 5,889 5,889 1,503 0.1118
2017-08-15 2017-06-30 13F ARISTA NETWORKS COM 040413106 0 -5,765 -100.00 0 -100.00
2017-05-12 2017-03-31 13F ARISTA NETWORKS COM 040413106 5,765 5,765 763 0.0711
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
(%)
2026-05-15 2026-03-31 13F ARISTA NETWORKS COM SHS Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-13 2025-12-31 13F ARISTA NETWORKS COM SHS Call 12,300 -47.21 1,612 -52.55 n/a n/a n/a
2025-11-14 2025-09-30 13F ARISTA NETWORKS COM SHS Call 23,300 27.32 3,395 81.36 n/a n/a n/a
2025-08-14 2025-06-30 13F ARISTA NETWORKS COM SHS Call 18,300 1,872 n/a n/a n/a
2025-05-15 2025-03-31 13F ARISTA NETWORKS COM SHS Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-14 2024-12-31 13F ARISTA NETWORKS COM SHS Call 6,800 277.78 752 8.84 n/a n/a n/a
2024-11-14 2024-09-30 13F ARISTA NETWORKS COM Call 1,800 691 n/a n/a n/a
Disclosed Put 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
(%)
2026-05-15 2026-03-31 13F ARISTA NETWORKS COM SHS Put 4,900 -91.90 602 -92.42 n/a n/a n/a
2026-02-13 2025-12-31 13F ARISTA NETWORKS COM SHS Put 60,500 118.41 7,927 96.41 n/a n/a n/a
2025-11-14 2025-09-30 13F ARISTA NETWORKS COM SHS Put 27,700 0.00 4,036 42.46 n/a n/a n/a
2025-08-14 2025-06-30 13F ARISTA NETWORKS COM SHS Put 27,700 284.72 2,834 408.62 n/a n/a n/a
2025-05-15 2025-03-31 13F ARISTA NETWORKS COM SHS Put 7,200 0.00 558 -29.94 n/a n/a n/a
2025-02-14 2024-12-31 13F ARISTA NETWORKS COM SHS Put 7,200 300.00 796 15.22 n/a n/a n/a
2024-11-14 2024-09-30 13F ARISTA NETWORKS COM Put 1,800 691 n/a n/a n/a
2023-05-15 2023-03-31 13F ARISTA NETWORKS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-02-14 2022-12-31 13F ARISTA NETWORKS COM Put 55,900 -0.71 6,783 6.72 n/a n/a n/a
2023-01-18 2022-09-30 13F/A ARISTA NETWORKS COM Put 56,300 6,356 n/a n/a n/a
2022-11-14 2022-09-30 13F ARISTA NETWORKS COM Put 56,300 6,356 n/a n/a n/a
2022-08-30 2022-06-30 13F/A ARISTA NETWORKS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-08-15 2022-06-30 13F ARISTA NETWORKS COM Put 0 0 n/a n/a n/a
2022-06-02 2022-03-31 13F/A ARISTA NETWORKS COM Put 60,800 0.00 8,450 -3.32 n/a n/a n/a
2022-05-13 2022-03-31 13F ARISTA NETWORKS COM Put 60,800 8,450 n/a n/a n/a
2022-05-03 2021-12-31 13F/A ARISTA NETWORKS COM Put 60,800 390.32 8,740 105.12 n/a n/a n/a
2021-11-15 2021-09-30 13F ARISTA NETWORKS COM Put 12,400 4,261 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.