William Blair & Company
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William Blair & Company’s Arista Networks ANET Stock Holding History

William Blair & Company’s Portfolio ANET Stock Details ANET Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$273M Buy
1,604,716
+453,489
+39% +$71.2M 0.71% 28
2026
Q1 		$141M Buy
1,151,227
+26,667
+2% +$3.57M 0.41% 55
2025
Q4 		$147M Buy
1,124,560
+11,992
+1% +$1.65M 0.4% 56
2025
Q3 		$162M Sell
1,112,568
-44,814
-4% -$5.77M 0.43% 57
2025
Q2 		$118M Buy
1,157,382
+125,362
+12% +$10.8M 0.33% 74
2025
Q1 		$80M Buy
1,032,020
+194,868
+23% +$19.8M 0.24% 96
2024
Q4 		$92.5M Sell
837,152
-15,496
-2% -$1.59M 0.27% 90
2024
Q3 		$81.8M Sell
852,648
-11,520
-1% -$1M 0.24% 95
2024
Q2 		$75.7M Buy
864,168
+31,688
+4% +$2.36M 0.23% 98
2024
Q1 		$60.4M Sell
832,480
-13,400
-2% -$904K 0.19% 115
2023
Q4 		$49.8M Sell
845,880
-5,728
-0.7% -$301K 0.17% 122
2023
Q3 		$39.2M Buy
851,608
+4,880
+0.6% +$217K 0.15% 129
2023
Q2 		$34.3M Buy
846,728
+22,536
+3% +$871K 0.13% 151
2023
Q1 		$34.6M Sell
824,192
-5,980
-0.7% -$206K 0.14% 141
2022
Q4 		$25.2M Sell
830,172
-10,072
-1% -$310K 0.11% 166
2022
Q3 		$23.7M Sell
840,244
-75,864
-8% -$2.19M 0.11% 170
2022
Q2 		$21.5M Sell
916,108
-1,281,244
-58% -$35.1M 0.1% 185
2022
Q1 		$76.3M Buy
2,197,352
+10,904
+0.5% +$345K 0.27% 91
2021
Q4 		$78.6M Sell
2,186,448
-32,736
-1% -$977K 0.25% 95
2021
Q3 		$47.7M Buy
2,219,184
+1,264
+0.1% +$29K 0.16% 140
2021
Q2 		$50.2M Buy
2,217,920
+77,360
+4% +$1.62M 0.17% 128
2021
Q1 		$40.4M Sell
2,140,560
-2,624
-0.1% -$49.1K 0.15% 149
2020
Q4 		$38.9M Buy
2,143,184
+252,272
+13% +$4M 0.14% 146
2020
Q3 		$24.5M Sell
1,890,912
-2,287,424
-55% -$31.4M 0.1% 172
2020
Q2 		$54.8M Buy
4,178,336
+211,296
+5% +$2.86M 0.26% 83
2020
Q1 		$50.2M Buy
3,967,040
+268,096
+7% +$3.48M 0.31% 72
2019
Q4 		$47M Buy
3,698,944
+1,826,000
+97% +$24M 0.24% 97
2019
Q3 		$28M Buy
1,872,944
+403,808
+27% +$6.25M 0.16% 136
2019
Q2 		$23.8M Buy
1,469,136
+368,848
+34% +$6.38M 0.14% 152
2019
Q1 		$21.6M Buy
1,100,288
+172,528
+19% +$2.74M 0.13% 155
2018
Q4 		$12.2M Buy
927,760
+541,104
+140% +$7.77M 0.09% 209
2018
Q3 		$6.42M Buy
386,656
+26,080
+7% +$444K 0.04% 329
2018
Q2 		$5.8M Sell
360,576
-8,224
-2% -$134K 0.04% 323
2018
Q1 		$5.88M Buy
368,800
+188,064
+104% +$3.17M 0.04% 320
2017
Q4 		$2.66M Sell
180,736
-153,264
-46% -$2.05M 0.02% 505
2017
Q3 		$3.96M Buy
334,000
+214,320
+179% +$2.24M 0.03% 389
2017
Q2 		$1.12M Buy
119,680
+36,864
+45% +$334K 0.01% 718
2017
Q1 		$678K Buy
82,816
+4,656
+6% +$32.1K 0.01% 805
2016
Q4 		$473K Buy
78,160
+38,160
+95% +$213K ﹤0.01% 852
2016
Q3 		$213K Buy
+40,000
New +$191K ﹤0.01% 1139

Other funds holding ANET

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
CAM
Cresset Asset Management Chicago, Illinois $27.6B AUM 31.92% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return

William Blair & Company's ANET Position: Q2 2026 in Review

William Blair & Company increased its Arista Networks (ANET) stake by 39% in Q2 2026, buying an estimated $71.2M and bringing the position to 1,604,716 shares worth $273M. The position accounts for 0.71% of the portfolio, ranked #28.

William Blair & Company first reported a position in ANET in Q3 2016 and has held it in 40 quarters since. 2,255 funds tracked by Wall St. Rank hold ANET as of Q2 2026.

  • William Blair & Company held 1,604,716 shares of Arista Networks worth $273M as of Q2 2026.
  • William Blair & Company bought 453,489 Arista Networks shares in Q2 2026, an estimated $71.2M.
  • Arista Networks made up 0.71% of William Blair & Company's portfolio in Q2 2026, its #28 holding.
  • William Blair & Company first reported a position in Arista Networks in Q3 2016 and has held it in 40 quarters since.
  • 2,255 funds tracked by Wall St. Rank held Arista Networks as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.