Arista · ownership
Who owns Arista?
BlackRock, Inc. is the largest 13F holder: 10.1% of 13F-reported shares calc.
2,255 institutions report 900.8M Arista shares in Form 13F, as of quarter end Jun 30, 2026; +22.6M shares vs Mar 31, 2026.
- BlackRock, Inc.10.1%91.4M shares · −524K vs prior quarter (down) · 13F filed Aug 7, 2026
- VANGUARD CAPITAL MANAGEMENT LLC7.6%68.7M shares · +418K vs prior quarter (up) · 13F filed Aug 13, 2026
- STATE STREET CORP5.3%48.2M shares · +1.4M vs prior quarter (up) · 13F filed Aug 7, 2026
- FMR LLC5.3%47.3M shares · −5.0M vs prior quarter (down) · 13F filed Aug 13, 2026
- GEODE CAPITAL MANAGEMENT, LLC3.1%27.5M shares · +276K vs prior quarter (up) · 13F filed Aug 12, 2026
- VANGUARD PORTFOLIO MANAGEMENT LLC2.9%25.8M shares · −31K vs prior quarter (down) · 13F filed Aug 13, 2026
- PRICE T ROWE ASSOCIATES INC /MD/2.6%23.2M shares · −6.1M vs prior quarter (down) · 13F filed Aug 14, 2026
- MORGAN STANLEY2.2%19.7M shares · +1.2M vs prior quarter (up) · 13F filed Aug 13, 2026
- Cresset Asset Management, LLC2.1%19.4M shares · −1.3M vs prior quarter (down) · 13F filed Aug 14, 2026
- Capital Research Global Investors1.5%13.2M shares · −1.6M vs prior quarter (down) · 13F filed Aug 12, 2026
- AMERIPRISE FINANCIAL INC1.4%12.8M shares · +2.8M vs prior quarter (up) · 13F filed Aug 14, 2026
- NORGES BANK1.4%12.2M shares · +12.2M vs prior quarter (new position) · 13F filed Aug 12, 2026
- JPMORGAN CHASE & CO1.3%11.7M shares · +1.2M vs prior quarter (up) · 13F filed Aug 12, 2026
- Nuveen, LLC1.2%10.7M shares · −1.9M vs prior quarter (down) · 13F filed Aug 11, 2026
- UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC1.2%10.5M shares · −159K vs prior quarter (down) · 13F filed Aug 13, 2026
- NORTHERN TRUST CORP1.1%10.1M shares · −4K vs prior quarter (down) · 13F filed Aug 13, 2026
- FRANKLIN RESOURCES INC1.1%9.9M shares · +1.9M vs prior quarter (up) · 13F filed Aug 13, 2026
- MASSACHUSETTS FINANCIAL SERVICES CO /MA/1.1%9.7M shares · +2.5M vs prior quarter (up) · 13F filed Aug 3, 2026
- GOLDMAN SACHS GROUP INC1.1%9.6M shares · −491K vs prior quarter (down) · 13F filed Aug 14, 2026
- SCHRODER INVESTMENT MANAGEMENT GROUP1.1%9.6M shares · −135K vs prior quarter (down) · 13F filed Aug 13, 2026
Share of 13F-reported shares, not of shares outstanding. 13F covers managers with over $100M in US equities; it is not a full shareholder list.
Method and sources
Source: SEC Form 13F data sets (bulk). Each row links to the holder’s own 13F-HR filing. Holder names exactly as filed; one group can file under several names and CIKs (for example two Vanguard entities), and they are listed separately, as filed.
% = the holder’s shares ÷ all shares reported in 13F filings for this company and quarter (calculated by Hollsteen). This is not a share of shares outstanding. Change = shares vs the same filer’s 13F for the prior quarter (Mar 31, 2026).
Erroneous filings and rows are handled by a fixed rule set (restatements replace originals; non-equity rows and implausible rows excluded): 17 erroneous filings excluded or replaced this quarter. No market values are shown.
SEC filings only. No price or market data.
Who holds more than 5%?
1 current Schedule 13D/13G holder
Schedule 13D/13G filings (8) ›
- VANGUARD CAPITAL MANAGEMENT LLC 6.25%
13G filed Apr 29, 2026 · event date Mar 31, 2026
- VANGUARD GROUP INC 0%
below 5% latest filing reports under 5% · 13G/A filed Mar 26, 2026 · event date Mar 13, 2026 · 9 earlier filings
- Bechtolsheim Family Trust 14.7%
stale filed Jan 31, 2024, as of Dec 31, 2023: older than 18 months, not a current holding · 13G/A filed Jan 31, 2024 · 6 earlier filings
- BlackRock Inc. 5.9%
stale filed Jan 29, 2024: older than 18 months, not a current holding · 13G/A filed Jan 29, 2024 · 4 earlier filings
- 2010 David R Cheriton Irrevocable Trust dtd July 28, 2010 3.88%
stale filed Feb 8, 2022, as of Dec 31, 2021: older than 18 months, not a current holding · 13G/A filed Feb 8, 2022 · 4 earlier filings
- Ullal Jayshree 4.85%
stale filed Feb 4, 2020, as of Dec 31, 2019: older than 18 months, not a current holding · 13G/A filed Feb 4, 2020 · 2 earlier filings
- Capital Research Global Investors 4%
stale filed Feb 14, 2019, as of Dec 31, 2018: older than 18 months, not a current holding · 13G/A filed Feb 14, 2019 · 1 earlier filing
- WELLINGTON MANAGEMENT GROUP LLP 1.66%
stale filed Feb 8, 2018, as of Dec 29, 2017: older than 18 months, not a current holding · 13G/A filed Feb 8, 2018
Method and sources
Schedule 13D (active) and 13G (passive) are filed by holders of more than 5% of a class. The percentage is the holder’s own cover-page “percent of class”. A filing older than 18 months (filed before 2025-04-17) is marked stale and is never shown as a current holding. Data as of Oct 13, 2026.
SEC filings only.
Are insiders buying or selling?
0 open-market purchases, 589 sales in 12 months
Form 4, Oct 13, 2025 – Oct 13, 2026 · 0 shares bought, 8,109,082 shares sold (net −8.1M) · as of Oct 13, 2026
Latest 25 of 1296 Form 4 transactions ›
| Date | Insider (as filed) | Transaction | Shares | Held after |
|---|---|---|---|---|
| Oct 7, 2026 | Ullal Jayshree · Director; CEO and Chairperson | Open-market sale · 10b5-1 | 13,860 disposed | 4,797,347 |
| Oct 7, 2026 | Ullal Jayshree · Director; CEO and Chairperson | Open-market sale · 10b5-1 | 13,860 disposed | 4,797,347 |
| Oct 7, 2026 | Ullal Jayshree · Director; CEO and Chairperson | Open-market sale · 10b5-1 | 69,272 disposed | 15,545,738 |
| Oct 6, 2026 | Ullal Jayshree · Director; CEO and Chairperson | Open-market sale · 10b5-1 | 13,179 disposed | 4,863,793 |
| Oct 6, 2026 | Ullal Jayshree · Director; CEO and Chairperson | Open-market sale · 10b5-1 | 51,805 disposed | 4,811,988 |
| Oct 6, 2026 | Ullal Jayshree · Director; CEO and Chairperson | Open-market sale · 10b5-1 | 781 disposed | 4,811,207 |
| Oct 6, 2026 | Ullal Jayshree · Director; CEO and Chairperson | Open-market sale · 10b5-1 | 13,179 disposed | 4,863,793 |
| Oct 6, 2026 | Ullal Jayshree · Director; CEO and Chairperson | Open-market sale · 10b5-1 | 51,805 disposed | 4,811,988 |
| Oct 6, 2026 | Ullal Jayshree · Director; CEO and Chairperson | Open-market sale · 10b5-1 | 781 disposed | 4,811,207 |
| Oct 6, 2026 | Ullal Jayshree · Director; CEO and Chairperson | Open-market sale · 10b5-1 | 65,897 disposed | 15,877,957 |
| Oct 6, 2026 | Ullal Jayshree · Director; CEO and Chairperson | Open-market sale · 10b5-1 | 259,045 disposed | 15,618,912 |
| Oct 6, 2026 | Ullal Jayshree · Director; CEO and Chairperson | Open-market sale · 10b5-1 | 3,902 disposed | 15,615,010 |
| Oct 6, 2026 | Breithaupt Chantelle Yvette · Senior Vice President, CFO | Open-market sale · 10b5-1 | 1,224 disposed | 68,697 |
| Oct 1, 2026 | TEMPLETON MARK B · Director | Open-market sale · 10b5-1 | 700 disposed | 52,710 |
| Oct 1, 2026 | TEMPLETON MARK B · Director | Open-market sale · 10b5-1 | 500 disposed | 52,210 |
| Oct 1, 2026 | TEMPLETON MARK B · Director | Open-market sale · 10b5-1 | 1,800 disposed | 50,410 |
| Oct 1, 2026 | TEMPLETON MARK B · Director | Open-market sale · 10b5-1 | 1,800 disposed | 48,610 |
| Oct 1, 2026 | TEMPLETON MARK B · Director | Open-market sale · 10b5-1 | 200 disposed | 48,410 |
| Sep 25, 2026 | Ullal Jayshree · Director; CEO and Chairperson | Open-market sale · 10b5-1 | 8,948 disposed | 4,876,972 |
| Sep 25, 2026 | Ullal Jayshree · Director; CEO and Chairperson | Open-market sale · 10b5-1 | 8,948 disposed | 4,876,972 |
| Sep 25, 2026 | Ullal Jayshree · Director; CEO and Chairperson | Open-market sale · 10b5-1 | 44,726 disposed | 15,943,854 |
| Sep 21, 2026 | Duda Kenneth · Director; President and CTO | Option exercise / RSU conversion · 10b5-1 | 17,333 acquired | 30,309 |
| Sep 21, 2026 | Duda Kenneth · Director; President and CTO | Open-market sale · 10b5-1 | 1,480 disposed | 28,829 |
| Sep 21, 2026 | Duda Kenneth · Director; President and CTO | Open-market sale · 10b5-1 | 7,420 disposed | 21,409 |
| Sep 21, 2026 | Duda Kenneth · Director; President and CTO | Open-market sale · 10b5-1 | 2,700 disposed | 18,709 |
Method and sources
Form 4 filings (not 4/A), table I. Open market = transaction codes P (purchase) and S (sale); grants, option exercises, tax withholding and gifts are listed but not counted as buys or sells. Shares and share counts only, as filed; Hollsteen shows no per-share prices. Data is an export, as of Oct 13, 2026, not live.
SEC filings only.