Total buying$00 buys
ANET
Arista Networks, Inc.
NYSETechnologyComputer Communications Equipment
Insider activity for last month from 09/19 to 10/19.
How these metrics are calculated
Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total selling$152M35 sells
Net open-market−$152MBuying minus selling
Active insiders4Distinct reporting owners
Insider activity report
Calendar-month buckets within the selected date range
Latest filing: Oct 13, 2026
Open-market transaction mix · 35 transactions in the selected period
Code A includes awards, grants and other acquisitions; these are not open-market buys. A rolling period can include partial calendar months.
View exact monthly counts and disclosed values
| Month | Buys | Sells | Awards (A) | Buy value | Sell value | Net P/S value |
|---|---|---|---|---|---|---|
| Sep 2026 | 0 | 17 | 0 | $0 | $20.1M | -$20.1M |
| Oct 2026 | 0 | 18 | 0 | $0 | $132M | -$132M |
Distinct insiders active
Reporting-owner CIKs by month · peak Oct 2026 (3)Sep 2026Oct 2026
Largest insider activity
By absolute net disclosed value · current transaction page- DK-$8.6M
ANET transaction history
Newest filings · 20 transactions per pageLatest insider transactions
Form 4 filings from last month.| Company | Insider | Activity | Disclosed value | Filed (ET) |
|---|---|---|---|---|
ANETArista Networks, Inc. | Duda KennethPRES | M · exercise10b5-1 detectedDerivative securitySEC filing ↗ | $0View disclosure → | |
ANETArista Networks, Inc. | Duda KennethPRES | S · sale10b5-1 detectedSEC filing ↗ | -$260kView disclosure → | |
ANETArista Networks, Inc. | Duda KennethPRES | S · sale10b5-1 detectedSEC filing ↗ | -$417kView disclosure → | |
ANETArista Networks, Inc. | Duda KennethPRES | S · sale10b5-1 detectedSEC filing ↗ | -$317kView disclosure → | |
ANETArista Networks, Inc. | Duda KennethPRES | S · sale10b5-1 detectedSEC filing ↗ | -$867kView disclosure → | |
ANETArista Networks, Inc. | Duda KennethPRES | S · sale10b5-1 detectedSEC filing ↗ | -$172kView disclosure → | |
ANETArista Networks, Inc. | Duda KennethPRES | S · sale10b5-1 detectedSEC filing ↗ | -$417kView disclosure → | |
ANETArista Networks, Inc. | Duda KennethPRES | S · sale10b5-1 detectedSEC filing ↗ | -$668kView disclosure → | |
ANETArista Networks, Inc. | Duda KennethPRES | S · sale10b5-1 detectedSEC filing ↗ | -$507kView disclosure → | |
ANETArista Networks, Inc. | Duda KennethPRES | S · sale10b5-1 detectedSEC filing ↗ | -$1.38MView disclosure → | |
ANETArista Networks, Inc. | Duda KennethPRES | S · sale10b5-1 detectedSEC filing ↗ | -$275kView disclosure → | |
ANETArista Networks, Inc. | Duda KennethPRES | S · sale10b5-1 detectedSEC filing ↗ | -$452kView disclosure → | |
ANETArista Networks, Inc. | Duda KennethPRES | S · sale10b5-1 detectedSEC filing ↗ | -$723kView disclosure → | |
ANETArista Networks, Inc. | Duda KennethPRES | S · sale10b5-1 detectedSEC filing ↗ | -$549kView disclosure → | |
ANETArista Networks, Inc. | Duda KennethPRES | S · sale10b5-1 detectedSEC filing ↗ | -$1.50MView disclosure → | |
ANETArista Networks, Inc. | Duda KennethPRES | S · sale10b5-1 detectedSEC filing ↗ | -$298kView disclosure → | |
ANETArista Networks, Inc. | Duda KennethPRES | M · exercise10b5-1 detectedSEC filing ↗ | $245kView disclosure → |
Filing-only signals
Deterministic matches in the selected period
Filing detail checks
Secondary metrics for the selected periodTransaction codes
By Form 4 transaction code in selected period37transactionstxns
- S · Open-market sells · dominant35 · 95%
- M · Option exercise2 · 5%
Activity by reported role
A joint filing can contribute to multiple rolesPRES17
CHAIR14
Director5
Chief financial officer1
SVP1
Reported Holdings After
Separated by insider, security, and ownership type
Ullal JayshreeCommon Stock · Indirect · By Trust for Child 1
4,774,691Oct 09, 2026
Ullal JayshreeCommon Stock · Indirect · by Trust
15,432,507Oct 09, 2026
Duda KennethCommon Stock · Direct
12,976Sep 21, 2026
Duda KennethCommon Stock · Indirect · By Childrens' Trust
1,170,918Sep 21, 2026
Duda KennethCommon Stock · Indirect · By Foundation
442,400Sep 21, 2026
Templeton Mark BCommon Stock · Direct
48,410Oct 01, 2026
Duda KennethNon-Qualified Stock Option (right to buy) · Direct
138,668Sep 21, 2026
Breithaupt Chantelle YvetteCommon Stock · Direct
68,697Oct 06, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Current transaction page only · each cell is a filing date · buys green, sells redSep 19 → Oct 19
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Arista Networks, Inc. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at Arista Networks, Inc.?
Ullal Jayshree, Breithaupt Chantelle Yvette, TEMPLETON MARK B, Duda Kenneth.
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
Ullal Jayshree reported a sale on Oct 09, 2026 valued at $20.2M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $152,694,588.03. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.