William Blair & Company’s Pfizer PFE Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $38.5M | Sell |
1,370,097
-12,572
| -0.9% | -$335K | 0.11% | 167 |
|
|
2025
Q4 | $34.4M | Sell |
1,382,669
-38,344
| -3% | -$967K | 0.09% | 170 |
|
|
2025
Q3 | $36.2M | Sell |
1,421,013
-437,039
| -24% | -$10.8M | 0.1% | 165 |
|
|
2025
Q2 | $45M | Sell |
1,858,052
-432,146
| -19% | -$10.1M | 0.13% | 149 |
|
|
2025
Q1 | $58M | Buy |
2,290,198
+20,179
| +0.9% | +$528K | 0.18% | 126 |
|
|
2024
Q4 | $60.2M | Sell |
2,270,019
-192,304
| -8% | -$5.22M | 0.18% | 117 |
|
|
2024
Q3 | $71.3M | Buy |
2,462,323
+509,013
| +26% | +$14.8M | 0.21% | 106 |
|
|
2024
Q2 | $54.7M | Buy |
1,953,310
+902,376
| +86% | +$24.8M | 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% | -$2.1M | 0.11% | 157 |
|
|
2023
Q3 | $38M | Sell |
1,146,945
-69,775
| -6% | -$2.47M | 0.15% | 133 |
|
|
2023
Q2 | $44.6M | Sell |
1,216,720
-88,497
| -7% | -$3.44M | 0.16% | 125 |
|
|
2023
Q1 | $53.3M | Sell |
1,305,217
-28,757
| -2% | -$1.24M | 0.21% | 108 |
|
|
2022
Q4 | $68.4M | Buy |
1,333,974
+75,619
| +6% | +$3.63M | 0.3% | 84 |
|
|
2022
Q3 | $55.1M | Buy |
1,258,355
+40,736
| +3% | +$1.98M | 0.25% | 95 |
|
|
2022
Q2 | $63.8M | Sell |
1,217,619
-5,866
| -0.5% | -$299K | 0.28% | 88 |
|
|
2022
Q1 | $63.3M | Buy |
1,223,485
+15,392
| +1% | +$799K | 0.22% | 107 |
|
|
2021
Q4 | $71.3M | Buy |
1,208,093
+64,298
| +6% | +$3.19M | 0.22% | 107 |
|
|
2021
Q3 | $49.2M | Buy |
1,143,795
+55,915
| +5% | +$2.48M | 0.17% | 133 |
|
|
2021
Q2 | $42.6M | Sell |
1,087,880
-65,603
| -6% | -$2.55M | 0.15% | 146 |
|
|
2021
Q1 | $41.8M | Sell |
1,153,483
-28,063
| -2% | -$996K | 0.16% | 147 |
|
|
2020
Q4 | $43.5M | Buy |
1,181,546
+17,020
| +1% | +$624K | 0.16% | 133 |
|
|
2020
Q3 | $40.5M | Buy |
1,164,526
+202,048
| +21% | +$7.08M | 0.17% | 120 |
|
|
2020
Q2 | $29.9M | Buy |
962,478
+47,871
| +5% | +$1.63M | 0.14% | 138 |
|
|
2020
Q1 | $28.3M | Buy |
914,607
+10,824
| +1% | +$369K | 0.18% | 124 |
|
|
2019
Q4 | $33.6M | Sell |
903,783
-51,017
| -5% | -$1.82M | 0.17% | 129 |
|
|
2019
Q3 | $32.5M | Sell |
954,800
-29,444
| -3% | -$1.07M | 0.19% | 115 |
|
|
2019
Q2 | $40.5M | Buy |
984,244
+7,413
| +0.8% | +$294K | 0.23% | 101 |
|
|
2019
Q1 | $39.4M | Sell |
976,831
-9,827
| -1% | -$394K | 0.24% | 102 |
|
|
2018
Q4 | $40.9M | Buy |
986,658
+9,000
| +0.9% | +$374K | 0.3% | 86 |
|
|
2018
Q3 | $40.9M | Buy |
977,658
+7,089
| +0.7% | +$273K | 0.25% | 99 |
|
|
2018
Q2 | $33.4M | Buy |
970,569
+9,143
| +1% | +$312K | 0.23% | 106 |
|
|
2018
Q1 | $32.4M | Sell |
961,426
-53,498
| -5% | -$1.84M | 0.23% | 108 |
|
|
2017
Q4 | $34.9M | Buy |
1,014,924
+12,585
| +1% | +$429K | 0.24% | 108 |
|
|
2017
Q3 | $34M | Buy |
1,002,339
+17,401
| +2% | +$559K | 0.25% | 104 |
|
|
2017
Q2 | $31.4M | Buy |
984,938
+65,026
| +7% | +$2.05M | 0.24% | 107 |
|
|
2017
Q1 | $29.8M | Buy |
919,912
+147,825
| +19% | +$4.66M | 0.24% | 110 |
|
|
2016
Q4 | $23.8M | Buy |
772,087
+23,730
| +3% | +$724K | 0.21% | 119 |
|
|
2016
Q3 | $24M | Buy |
748,357
+3,580
| +0.5% | +$120K | 0.21% | 115 |
|
|
2016
Q2 | $24.3M | Buy |
744,777
+11,549
| +2% | +$369K | 0.23% | 117 |
|
|
2016
Q1 | $20.6M | Buy |
733,228
+8,666
| +1% | +$248K | 0.19% | 132 |
|
|
2015
Q4 | $22.2M | Buy |
724,562
+9,515
| +1% | +$299K | 0.21% | 124 |
|
|
2015
Q3 | $21.3M | Buy |
715,047
+4,135
| +0.6% | +$133K | 0.18% | 139 |
|
|
2015
Q2 | $22.6M | Buy |
710,912
+5,274
| +0.7% | +$172K | 0.03% | 593 |
|
|
2015
Q1 | $23.3M | Sell |
705,638
-9,791
| -1% | -$311K | 0.04% | 548 |
|
|
2014
Q4 | $21.1M | Buy |
715,429
+106,109
| +17% | +$3.04M | 0.03% | 571 |
|
|
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% | +$1.36M | 0.03% | 625 |
|
|
2014
Q1 | $17.2M | Buy |
565,389
+41,661
| +8% | +$1.24M | 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% | -$156K | 0.03% | 606 |
|
|
2013
Q2 | $14.4M | Buy |
+543,166
| New | +$15M | 0.03% | 578 |
|
Other funds holding PFE
VCM
VPM
William Blair & Company's PFE Position: Q1 2026 in Review
William Blair & Company reduced its Pfizer (PFE) stake by 0.91% in Q1 2026, selling an estimated $335K and leaving 1,370,097 shares worth $38.5M. The position accounts for 0.11% of the portfolio, ranked #167.
William Blair & Company first reported a position in PFE in Q2 2013 and has held it in 52 quarters since. The position peaked at $71.3M in Q4 2021. 2,939 funds tracked by Wall St. Rank hold PFE as of Q1 2026.
- William Blair & Company held 1,370,097 shares of Pfizer worth $38.5M as of Q1 2026.
- William Blair & Company sold 12,572 Pfizer shares in Q1 2026, an estimated $335K.
- Pfizer made up 0.11% of William Blair & Company's portfolio in Q1 2026, its #167 holding.
- William Blair & Company first reported a position in Pfizer in Q2 2013 and has held it in 52 quarters since.
- William Blair & Company's Pfizer position peaked at $71.3M in Q4 2021.
- 2,939 funds tracked by Wall St. Rank held Pfizer as of Q1 2026.
Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.