William Blair & Company
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William Blair & Company’s AstraZeneca AZN Stock Holding History

William Blair & Company’s Portfolio AZN Stock Details AZN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$19.8M Sell
100,622
-4,970
-5% -$958K 0.06% 246
2025
Q4 		$19.4M Buy
105,592
+540
+0.5% +$94.7K 0.05% 238
2025
Q3 		$16.1M Sell
105,052
-154
-0.1% -$23.3K 0.04% 265
2025
Q2 		$14.7M Sell
105,206
-3,671
-3% -$514K 0.04% 281
2025
Q1 		$16M Sell
108,877
-5,081
-4% -$735K 0.05% 246
2024
Q4 		$14.9M Sell
113,958
-3,766
-3% -$527K 0.04% 275
2024
Q3 		$18.3M Buy
117,724
+2,982
+3% +$481K 0.05% 246
2024
Q2 		$17.9M Sell
114,742
-2,960
-3% -$445K 0.06% 232
2024
Q1 		$15.9M Sell
117,702
-6,018
-5% -$797K 0.05% 249
2023
Q4 		$16.7M Sell
123,720
-9,597
-7% -$1.25M 0.06% 232
2023
Q3 		$18.1M Sell
133,317
-25,212
-16% -$3.44M 0.07% 207
2023
Q2 		$22.7M Sell
158,529
-2,320
-1% -$341K 0.08% 186
2023
Q1 		$22.3M Sell
160,849
-3,037
-2% -$409K 0.09% 190
2022
Q4 		$22.2M Sell
163,886
-2,991
-2% -$375K 0.1% 181
2022
Q3 		$18.3M Sell
166,877
-11,019
-6% -$1.4M 0.08% 195
2022
Q2 		$23.5M Buy
177,896
+7,877
+5% +$1.03M 0.1% 174
2022
Q1 		$22.6M Sell
170,019
-5,055
-3% -$606K 0.08% 207
2021
Q4 		$20.4M Sell
175,074
-12,578
-7% -$1.48M 0.06% 228
2021
Q3 		$22.5M Sell
187,652
-3,171
-2% -$369K 0.08% 213
2021
Q2 		$22.9M Buy
190,823
+12,228
+7% +$1.34M 0.08% 212
2021
Q1 		$17.8M Sell
178,595
-49,557
-22% -$4.98M 0.07% 229
2020
Q4 		$22.8M Sell
228,152
-2,578
-1% -$273K 0.08% 201
2020
Q3 		$25.3M Buy
230,730
+12,140
+6% +$1.35M 0.11% 169
2020
Q2 		$23.1M Sell
218,590
-1,073
-0.5% -$111K 0.11% 163
2020
Q1 		$19.6M Sell
219,663
-18,141
-8% -$1.71M 0.12% 160
2019
Q4 		$23.7M Buy
237,804
+11,188
+5% +$1.05M 0.12% 175
2019
Q3 		$20.2M Buy
226,616
+11,226
+5% +$973K 0.12% 174
2019
Q2 		$17.8M Buy
215,390
+13,515
+7% +$1.06M 0.1% 186
2019
Q1 		$16.3M Buy
201,875
+4,386
+2% +$346K 0.1% 192
2018
Q4 		$15M Sell
197,489
-10,297
-5% -$804K 0.11% 179
2018
Q3 		$16.4M Buy
207,786
+20,576
+11% +$1.56M 0.1% 193
2018
Q2 		$13.1M Buy
187,210
+39,693
+27% +$2.86M 0.09% 205
2018
Q1 		$10.3M Buy
147,517
+27,921
+23% +$1.93M 0.07% 235
2017
Q4 		$8.3M Buy
119,596
+28,091
+31% +$1.89M 0.06% 265
2017
Q3 		$6.2M Buy
91,505
+70,446
+335% +$4.45M 0.05% 288
2017
Q2 		$1.44M Buy
21,059
+8,087
+62% +$528K 0.01% 654
2017
Q1 		$801K Sell
12,972
-2,701
-17% -$157K 0.01% 767
2016
Q4 		$856K Sell
15,673
-3,207
-17% -$182K 0.01% 682
2016
Q3 		$1.24M Sell
18,880
-120
-0.6% -$7.84K 0.01% 597
2016
Q2 		$1.15M Sell
19,000
-1,056
-5% -$61.3K 0.01% 599
2016
Q1 		$1.13M Sell
20,056
-5,610
-22% -$337K 0.01% 593
2015
Q4 		$1.74M Buy
25,666
+2,447
+11% +$160K 0.02% 500
2015
Q3 		$1.48M Buy
23,219
+1,510
+7% +$99.3K 0.01% 627
2015
Q2 		$1.38M Sell
21,709
-43,046
-66% -$2.95M ﹤0.01% 1484
2015
Q1 		$4.43M Buy
64,755
+47,634
+278% +$3.31M 0.01% 1079
2014
Q4 		$1.2M Sell
17,121
-1,663
-9% -$119K ﹤0.01% 1434
2014
Q3 		$1.34M Hold
18,784
– – ﹤0.01% 1375
2014
Q2 		$1.4M Sell
18,784
-7,211
-28% -$521K ﹤0.01% 1348
2014
Q1 		$1.69M Buy
25,995
+1,058
+4% +$68.3K ﹤0.01% 1253
2013
Q4 		$1.48M Sell
24,937
-2,522
-9% -$137K ﹤0.01% 1269
2013
Q3 		$1.43M Sell
27,459
-1,032
-4% -$51.8K ﹤0.01% 1237
2013
Q2 		$1.35M Buy
+28,491
New +$1.45M ﹤0.01% 1179

Other funds holding AZN

IA
Investor AB Stockholm, Sweden $15.1B AUM 29.02% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
Legal & General Group
Legal & General Group London, United Kingdom $432B AUM 29.4% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
VAM
Vanguard Asset Management London, Ec4n 8af $117B AUM

William Blair & Company's AZN Position: Q1 2026 in Review

William Blair & Company reduced its AstraZeneca (AZN) stake by 4.7% in Q1 2026, selling an estimated $958K and leaving 100,622 shares worth $19.8M. The position accounts for 0.06% of the portfolio, ranked #246.

William Blair & Company first reported a position in AZN in Q2 2013 and has held it in 52 quarters since. The position peaked at $25.3M in Q3 2020. 1,379 funds tracked by Wall St. Rank hold AZN as of Q1 2026.

  • William Blair & Company held 100,622 shares of AstraZeneca worth $19.8M as of Q1 2026.
  • William Blair & Company sold 4,970 AstraZeneca shares in Q1 2026, an estimated $958K.
  • AstraZeneca made up 0.06% of William Blair & Company's portfolio in Q1 2026, its #246 holding.
  • William Blair & Company first reported a position in AstraZeneca in Q2 2013 and has held it in 52 quarters since.
  • William Blair & Company's AstraZeneca position peaked at $25.3M in Q3 2020.
  • 1,379 funds tracked by Wall St. Rank held AstraZeneca as of Q1 2026.

Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.