William Blair Investment Management
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William Blair Investment Management’s Cognex CGNX Stock Holding History

William Blair Investment Management’s Portfolio CGNX Stock Details CGNX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$66M Sell
910,938
-105,525
-10% -$6.4M 0.2% 136
2026
Q1 		$49.8M Sell
1,016,463
-36,817
-3% -$1.72M 0.16% 137
2025
Q4 		$37.9M Buy
1,053,280
+165,005
+19% +$6.68M 0.11% 166
2025
Q3 		$40.2M Buy
888,275
+119,188
+15% +$4.82M 0.1% 161
2025
Q2 		$24.4M Sell
769,087
-4,828,764
-86% -$138M 0.06% 263
2025
Q1 		$167M Sell
5,597,851
-242,266
-4% -$8.53M 0.47% 58
2024
Q4 		$209M Buy
5,840,117
+1,253,996
+27% +$49.1M 0.51% 55
2024
Q3 		$186M Buy
4,586,121
+567,582
+14% +$24.2M 0.46% 66
2024
Q2 		$188M Buy
4,018,539
+301,916
+8% +$13.3M 0.49% 61
2024
Q1 		$158M Buy
3,716,623
+1,088,095
+41% +$42.4M 0.41% 76
2023
Q4 		$110M Sell
2,628,528
-139,763
-5% -$5.37M 0.32% 103
2023
Q3 		$117M Buy
2,768,291
+4,093
+0.1% +$201K 0.39% 82
2023
Q2 		$155M Buy
2,764,198
+457,242
+20% +$23.7M 0.5% 68
2023
Q1 		$114M Buy
2,306,956
+26,930
+1% +$1.36M 0.4% 86
2022
Q4 		$107M Buy
2,280,026
+201,520
+10% +$9.44M 0.41% 85
2022
Q3 		$86.2M Buy
2,078,506
+5,993
+0.3% +$271K 0.34% 94
2022
Q2 		$88.1M Buy
2,072,513
+815,224
+65% +$45.7M 0.33% 105
2022
Q1 		$97M Buy
+1,257,289
New +$86.1M 0.29% 108
2020
Q1 		– Sell
-137,874
Closed -$7.73M – 347
2019
Q4 		$7.73M Buy
+137,874
New +$7.13M 0.03% 309
2018
Q2 		– Sell
-85,902
Closed -$4.47M – 482
2018
Q1 		$4.47M Buy
85,902
+29,032
+51% +$1.72M 0.02% 359
2017
Q4 		$3.48M Buy
+56,870
New +$3.62M 0.01% 367

Other funds holding CGNX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Pictet Asset Management
Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return
Nordea Investment Management
Nordea Investment Management Stockholm, Sweden $123B AUM 38.85% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
DGI
Disciplined Growth Investors Minneapolis, Minnesota $5.91B AUM 53.97% 1-Year Est. Return

William Blair Investment Management's CGNX Position: Q2 2026 in Review

William Blair Investment Management reduced its Cognex (CGNX) stake by 10% in Q2 2026, selling an estimated $6.4M and leaving 910,938 shares worth $66M. The position accounts for 0.2% of the portfolio, ranked #136.

William Blair Investment Management first reported a position in CGNX in Q4 2017 and has held it in 21 quarters since. The position peaked at $209M in Q4 2024. 651 funds tracked by Wall St. Rank hold CGNX as of Q2 2026.

  • William Blair Investment Management held 910,938 shares of Cognex worth $66M as of Q2 2026.
  • William Blair Investment Management sold 105,525 Cognex shares in Q2 2026, an estimated $6.4M.
  • Cognex made up 0.2% of William Blair Investment Management's portfolio in Q2 2026, its #136 holding.
  • William Blair Investment Management first reported a position in Cognex in Q4 2017 and has held it in 21 quarters since.
  • William Blair Investment Management's Cognex position peaked at $209M in Q4 2024.
  • 651 funds tracked by Wall St. Rank held Cognex as of Q2 2026.

Based on William Blair Investment Management's 13F filing for Q2 2026, filed 12 Aug 2026.