William Blair & Company’s Pfizer PFE Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2025
Q2
$45M Sell
1,858,052
-432,146
-19% -$10.5M 0.13% 149
2025
Q1
$58M Buy
2,290,198
+20,179
+0.9% +$511K 0.18% 126
2024
Q4
$60.2M Sell
2,270,019
-192,304
-8% -$5.1M 0.18% 117
2024
Q3
$71.3M Buy
2,462,323
+509,013
+26% +$14.7M 0.21% 106
2024
Q2
$54.7M Buy
1,953,310
+902,376
+86% +$25.2M 0.17% 121
2024
Q1
$29.2M Sell
1,050,934
-26,704
-2% -$741K 0.09% 170
2023
Q4
$31M Sell
1,077,638
-69,307
-6% -$2M 0.11% 157
2023
Q3
$38M Sell
1,146,945
-69,775
-6% -$2.31M 0.15% 133
2023
Q2
$44.6M Sell
1,216,720
-88,497
-7% -$3.25M 0.16% 125
2023
Q1
$53.3M Sell
1,305,217
-28,757
-2% -$1.17M 0.21% 108
2022
Q4
$68.4M Buy
1,333,974
+75,619
+6% +$3.87M 0.3% 84
2022
Q3
$55.1M Buy
1,258,355
+40,736
+3% +$1.78M 0.25% 95
2022
Q2
$63.8M Sell
1,217,619
-5,866
-0.5% -$308K 0.28% 88
2022
Q1
$63.3M Buy
1,223,485
+15,392
+1% +$797K 0.22% 107
2021
Q4
$71.3M Buy
1,208,093
+64,298
+6% +$3.8M 0.22% 107
2021
Q3
$49.2M Buy
1,143,795
+55,915
+5% +$2.4M 0.17% 133
2021
Q2
$42.6M Sell
1,087,880
-65,603
-6% -$2.57M 0.15% 146
2021
Q1
$41.8M Sell
1,153,483
-28,063
-2% -$1.02M 0.16% 147
2020
Q4
$43.5M Buy
1,181,546
+17,020
+1% +$627K 0.16% 133
2020
Q3
$40.5M Buy
1,164,526
+202,048
+21% +$7.04M 0.17% 120
2020
Q2
$29.9M Buy
962,478
+47,871
+5% +$1.49M 0.14% 138
2020
Q1
$28.3M Buy
914,607
+10,824
+1% +$335K 0.18% 124
2019
Q4
$33.6M Sell
903,783
-51,017
-5% -$1.9M 0.17% 129
2019
Q3
$32.5M Sell
954,800
-29,444
-3% -$1M 0.19% 115
2019
Q2
$40.5M Buy
984,244
+7,413
+0.8% +$305K 0.23% 101
2019
Q1
$39.4M Sell
976,831
-9,827
-1% -$396K 0.24% 102
2018
Q4
$40.9M Buy
986,658
+9,000
+0.9% +$373K 0.3% 86
2018
Q3
$40.9M Buy
977,658
+7,089
+0.7% +$296K 0.25% 99
2018
Q2
$33.4M Buy
970,569
+9,143
+1% +$315K 0.23% 106
2018
Q1
$32.4M Sell
961,426
-53,498
-5% -$1.8M 0.23% 108
2017
Q4
$34.9M Buy
1,014,924
+12,585
+1% +$432K 0.24% 108
2017
Q3
$34M Buy
1,002,339
+17,401
+2% +$589K 0.25% 104
2017
Q2
$31.4M Buy
984,938
+65,026
+7% +$2.07M 0.24% 107
2017
Q1
$29.8M Buy
919,912
+147,825
+19% +$4.79M 0.24% 110
2016
Q4
$23.8M Buy
772,087
+23,730
+3% +$731K 0.21% 119
2016
Q3
$24M Buy
748,357
+3,580
+0.5% +$115K 0.21% 115
2016
Q2
$24.3M Buy
744,777
+11,549
+2% +$377K 0.23% 117
2016
Q1
$20.6M Buy
733,228
+8,666
+1% +$244K 0.19% 132
2015
Q4
$22.2M Buy
724,562
+9,515
+1% +$291K 0.21% 124
2015
Q3
$21.3M Buy
715,047
+4,135
+0.6% +$123K 0.18% 139
2015
Q2
$22.6M Buy
710,912
+5,274
+0.7% +$168K 0.03% 592
2015
Q1
$23.3M Sell
705,638
-9,791
-1% -$323K 0.04% 547
2014
Q4
$21.1M Buy
715,429
+106,109
+17% +$3.14M 0.03% 570
2014
Q3
$17.1M Sell
609,320
-3,755
-0.6% -$105K 0.03% 628
2014
Q2
$17.3M Buy
613,075
+47,686
+8% +$1.34M 0.03% 625
2014
Q1
$17.2M Buy
565,389
+41,661
+8% +$1.27M 0.03% 618
2013
Q4
$15.2M Sell
523,728
-13,687
-3% -$398K 0.03% 639
2013
Q3
$14.6M Sell
537,415
-5,751
-1% -$157K 0.03% 606
2013
Q2
$14.4M Buy
+543,166
New +$14.4M 0.03% 578