Arista Networks, Inc.
MX ˙ BMV ˙ US0404132054
SecurityMX:ANET / Arista Networks, Inc.
InstitutionAllianz Asset Management GmbH
Latest Disclosed Ownership1,878,401 shares
Latest Disclosed Value $ 230,630,075
Allianz Asset Management GmbH ownership in ANET / Arista Networks, Inc.

On May 11, 2026 - Allianz Asset Management GmbH filed a 13F-HR form disclosing ownership of 1,878,401 shares of Arista Networks, Inc. (MX:ANET) valued at $230,630,075 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 1,809,525 shares of Arista Networks, Inc.. This represents a change in shares of 3.81% during the quarter.

Allianz Asset Management GmbH 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 42,900 of underlying shares valued at $5,267,262 USD and put options representing 81,200 of underlying shares valued at $9,969,736 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)
2026-05-11 2026-03-31 13F ARISTA NETWORKS COM SHS 040413205 1,878,401 68,876 3.81 230,630 -2.73 0.0904
2026-02-11 2025-12-31 13F ARISTA NETWORKS COM SHS 040413205 1,809,525 -26,508 -1.44 237,102 -11.37 0.2398
2025-11-04 2025-09-30 13F ARISTA NETWORKS COM SHS 040413205 1,836,033 -271,612 -12.89 267,528 24.07 0.2987
2025-07-28 2025-06-30 13F ARISTA NETWORKS COM SHS 040413205 2,107,645 316,690 17.68 215,633 55.39 0.2581
2025-05-05 2025-03-31 13F ARISTA NETWORKS COM SHS 040413205 1,790,955 -364,949 -16.93 138,773 -41.76 0.1816
2025-02-03 2024-12-31 13F ARISTA NETWORKS COM SHS 040413205 2,155,904 1,695,438 368.20 238,293 34.83 0.3180
2024-11-13 2024-09-30 13F ARISTA NETWORKS COM 040413106 460,466 44,517 10.70 176,736 21.23 0.2471
2024-08-13 2024-06-30 13F ARISTA NETWORKS COM 040413106 415,949 -10,023 -2.35 145,782 18.02 0.2159
2024-05-14 2024-03-31 13F ARISTA NETWORKS COM 040413106 425,972 191,295 81.51 123,523 123.50 0.1906
2024-02-12 2023-12-31 13F ARISTA NETWORKS COM 040413106 234,677 -1,668 -0.71 55,269 27.14 0.0903
2023-11-13 2023-09-30 13F ARISTA NETWORKS COM 040413106 236,345 17,740 8.12 43,471 22.70 0.0733
2023-08-14 2023-06-30 13F ARISTA NETWORKS COM 040413106 218,605 -125,179 -36.41 35,427 -38.61 0.0634
2023-05-11 2023-03-31 13F ARISTA NETWORKS COM 040413106 343,784 -88,417 -20.46 57,708 10.03 0.1023
2023-02-13 2022-12-31 13F ARISTA NETWORKS COM 040413106 432,201 -87,101 -16.77 52,448 -10.54 0.1019
2022-11-08 2022-09-30 13F ARISTA NETWORKS COM 040413106 519,302 -1,241,023 -70.50 58,624 -64.47 0.1192
2022-08-12 2022-06-30 13F ARISTA NETWORKS COM 040413106 1,760,325 -246,628 -12.29 165,013 -40.84 0.1566
2022-05-13 2022-03-31 13F ARISTA NETWORKS COM 040413106 2,006,953 -1,496 -0.07 278,927 -3.39 0.2078
2022-02-11 2021-12-31 13F ARISTA NETWORKS COM 040413106 2,008,449 1,616,214 412.05 288,715 114.20 0.2020
2021-11-10 2021-09-30 13F ARISTA NETWORKS COM 040413106 392,235 49,166 14.33 134,788 8.44 0.1049
2021-08-16 2021-06-30 13F ARISTA NETWORKS COM 040413106 343,069 70,476 25.85 124,297 51.04 0.1057
2021-05-13 2021-03-31 13F ARISTA NETWORKS COM 040413106 272,593 -76,746 -21.97 82,293 -18.93 0.0798
2021-02-16 2020-12-31 13F ARISTA NETWORKS COM 040413106 349,339 217,120 164.21 101,507 271.01 0.1003
2020-11-13 2020-09-30 13F ARISTA NETWORKS COM 040413106 132,219 46,533 54.31 27,360 52.03 0.0318
2020-08-14 2020-06-30 13F ARISTA NETWORKS COM 040413106 85,686 -14,616 -14.57 17,997 -11.42 0.0208
2020-05-14 2020-03-31 13F ARISTA NETWORKS COM 040413106 100,302 54,908 120.96 20,317 120.05 0.0272
2020-02-13 2019-12-31 13F ARISTA NETWORKS COM 040413106 45,394 -222,974 -83.09 9,233 -85.60 0.0084
2019-11-13 2019-09-30 13F ARISTA NETWORKS COM 040413106 268,368 -399,857 -59.84 64,118 -63.04 0.0630
2019-08-08 2019-06-30 13F ARISTA NETWORKS COM 040413106 668,225 -142,896 -17.62 173,484 -31.98 0.1614
2019-05-13 2019-03-31 13F ARISTA NETWORKS COM 040413106 811,121 51,444 6.77 255,065 59.35 0.2528
2019-04-02 2018-12-31 13F/A-1 ARISTA NETWORKS COM 040413106 759,677 -216,031 -22.14 160,064 -38.30 0.1754
2019-02-13 2018-12-31 13F ARISTA NETWORKS COM 040413106 759,677 -216,031 160,064
2019-04-09 2018-09-30 13F/A-1 ARISTA NETWORKS COM 040413106 975,708 274,184 39.08 259,402 43.61 0.2355
2018-11-13 2018-09-30 13F ARISTA NETWORKS COM 040413106 975,708 274,184 259,402
2019-04-09 2018-06-30 13F/A-1 ARISTA NETWORKS COM 040413106 701,524 -29,898 -4.09 180,635 -3.27 0.1758
2018-08-13 2018-06-30 13F ARISTA NETWORKS COM 040413106 701,524 -29,898 180,635
2019-04-09 2018-03-31 13F/A-2 ARISTA NETWORKS COM 040413106 731,422 83,174 12.83 186,732 22.28 0.1787
2018-05-23 2018-03-31 13F/A-1 ARISTA NETWORKS COM 040413106 731,422 0 186,732 0.1783
2018-05-14 2018-03-31 13F ARISTA NETWORKS COM 040413106 731,422 83,174 186,732
2019-04-17 2017-12-31 13F/A-1 ARISTA NETWORKS COM 040413106 648,248 265,519 69.38 152,714 110.44 0.1208
2018-02-13 2017-12-31 13F ARISTA NETWORKS COM 040413106 648,248 265,519 152,714
2019-04-17 2017-09-30 13F/A-1 ARISTA NETWORKS COM 040413106 382,729 88,504 30.08 72,570 64.66 0.0630
2017-11-13 2017-09-30 13F ARISTA NETWORKS COM 040413106 382,729 88,504 72,570
2019-04-17 2017-06-30 13F/A-1 ARISTA NETWORKS COM 040413106 294,225 -118,390 -28.69 44,072 -19.25 0.0426
2017-08-14 2017-06-30 13F ARISTA NETWORKS COM 040413106 294,225 -118,390 44,072
2019-04-17 2017-03-31 13F/A-1 ARISTA NETWORKS COM 040413106 412,615 -101,760 -19.78 54,577 9.65 0.0536
2017-05-15 2017-03-31 13F ARISTA NETWORKS COM 040413106 412,615 -101,760 54,577
2019-04-17 2016-12-31 13F/A-2 ARISTA NETWORKS COM 040413106 514,375 86,240 20.14 49,776 36.65 0.0448
2017-03-14 2016-12-31 13F/A-1 ARISTA NETWORKS COM 040413106 514,375 0 49,776 0.0447
2017-02-13 2016-12-31 13F ARISTA NETWORKS COM 040413106 514,375 49,776
2019-04-17 2016-09-30 13F/A-1 ARISTA NETWORKS COM 040413106 428,135 347,340 429.90 36,426 600.23 0.0356
2016-11-14 2016-09-30 13F ARISTA NETWORKS COM 040413106 428,135 347,340 36,426
2017-01-24 2016-06-30 13F/A-1 ARISTA NETWORKS COM 040413106 80,795 9,315 13.03 5,202 15.34 0.0056
2016-08-12 2016-06-30 13F ARISTA NETWORKS COM 040413106 80,795 5,202
2016-05-13 2016-03-31 13F ARISTA NETWORKS COM 040413106 71,480 -118,775 -62.43 4,510 -69.55 0.0052
2017-01-24 2015-12-31 13F/A-1 ARISTA NETWORKS COM 040413106 190,255 26,155 15.94 14,809 47.49 0.0167
2016-02-16 2015-12-31 13F ARISTA NETWORKS COM 040413106 190,255 14,809
2017-01-24 2015-09-30 13F/A-2 ARISTA NETWORKS COM 040413106 164,100 124,275 312.05 10,041 208.48 0.0120
2015-11-20 2015-09-30 13F/A-1 ARISTA NETWORKS COM 040413106 164,100 0 10,041 0.0105
2015-11-13 2015-09-30 13F ARISTA NETWORKS COM 040413106 164,100 10,041
2015-09-22 2015-06-30 13F/A-1 ARISTA NETWORKS COM 040413106 39,825 39,825 3,255 0.0035
2015-08-14 2015-06-30 13F ARISTA NETWORKS COM 040413106 39,825 3,255 0.0036
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
(%)
2026-05-11 2026-03-31 13F ARISTA NETWORKS COM SHS Call 42,900 -28.86 5,267 -33.34 n/a n/a n/a
2026-02-11 2025-12-31 13F ARISTA NETWORKS COM SHS Call 60,300 29.12 7,901 16.12 n/a n/a n/a
2025-11-04 2025-09-30 13F ARISTA NETWORKS COM SHS Call 46,700 13.08 6,805 61.04 n/a n/a n/a
2025-07-28 2025-06-30 13F ARISTA NETWORKS COM SHS Call 41,300 -32.74 4,225 -11.18 n/a n/a n/a
2025-05-05 2025-03-31 13F ARISTA NETWORKS COM SHS Call 61,400 113.19 4,757 49.45 n/a n/a n/a
2025-02-03 2024-12-31 13F ARISTA NETWORKS COM SHS Call 28,800 396.55 3,183 42.99 n/a n/a n/a
2024-11-13 2024-09-30 13F ARISTA NETWORKS COM Call 5,800 -4.92 2,226 4.16 n/a n/a n/a
2024-08-13 2024-06-30 13F ARISTA NETWORKS COM Call 6,100 2,950.00 2,138 3,649.12 n/a n/a n/a
2024-05-14 2024-03-31 13F ARISTA NETWORKS COM Call 200 -97.14 58 -96.54 n/a n/a n/a
2024-02-12 2023-12-31 13F ARISTA NETWORKS CALL Call 7,000 -44.88 1,649 -29.42 n/a n/a n/a
2023-11-13 2023-09-30 13F ARISTA NETWORKS CALL Call 12,700 202.38 2,336 243.38 n/a n/a n/a
2023-08-14 2023-06-30 13F ARISTA NETWORKS CALL Call 4,200 2.44 681 -1.16 n/a n/a n/a
2023-05-11 2023-03-31 13F ARISTA NETWORKS CALL Call 4,100 688 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
(%)
2026-05-11 2026-03-31 13F ARISTA NETWORKS COM SHS Put 81,200 -28.90 9,970 -33.38 n/a n/a n/a
2026-02-11 2025-12-31 13F ARISTA NETWORKS COM SHS Put 114,200 83.01 14,964 64.57 n/a n/a n/a
2025-11-04 2025-09-30 13F ARISTA NETWORKS COM SHS Put 62,400 8.90 9,092 55.10 n/a n/a n/a
2025-07-28 2025-06-30 13F ARISTA NETWORKS COM SHS Put 57,300 -33.22 5,862 -11.81 n/a n/a n/a
2025-05-05 2025-03-31 13F ARISTA NETWORKS COM SHS Put 85,800 61.28 6,648 13.04 n/a n/a n/a
2025-02-03 2024-12-31 13F ARISTA NETWORKS COM SHS Put 53,200 416.50 5,880 48.75 n/a n/a n/a
2024-11-13 2024-09-30 13F ARISTA NETWORKS COM Put 10,300 56.06 3,953 70.90 n/a n/a n/a
2024-08-13 2024-06-30 13F ARISTA NETWORKS COM Put 6,600 2,100.00 2,313 2,589.53 n/a n/a n/a
2024-05-14 2024-03-31 13F ARISTA NETWORKS COM Put 300 -97.60 87 -97.08 n/a n/a n/a
2024-02-12 2023-12-31 13F ARISTA NETWORKS PUT Put 12,500 -33.51 2,944 -14.87 n/a n/a n/a
2023-11-13 2023-09-30 13F ARISTA NETWORKS PUT Put 18,800 168.57 3,458 204.85 n/a n/a n/a
2023-08-14 2023-06-30 13F ARISTA NETWORKS PUT Put 7,000 1.45 1,134 -2.07 n/a n/a n/a
2023-05-11 2023-03-31 13F ARISTA NETWORKS PUT Put 6,900 1,158 n/a n/a n/a
2022-08-12 2022-06-30 13F ARISTA NETWORKS PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-13 2022-03-31 13F ARISTA NETWORKS PUT Put 100 14 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.