William Blair & Company
AMGN icon

William Blair & Company’s Amgen AMGN Stock Holding History

William Blair & Company’s Portfolio AMGN Stock Details AMGN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$54.9M Sell
155,998
-8,198
-5% -$2.92M 0.16% 135
2025
Q4 		$53.7M Buy
164,196
+1,957
+1% +$621K 0.14% 135
2025
Q3 		$45.8M Sell
162,239
-4,654
-3% -$1.35M 0.12% 151
2025
Q2 		$46.6M Buy
166,893
+275
+0.2% +$77.9K 0.13% 145
2025
Q1 		$51.9M Sell
166,618
-11,978
-7% -$3.54M 0.16% 134
2024
Q4 		$46.5M Sell
178,596
-21,709
-11% -$6.44M 0.14% 142
2024
Q3 		$64.5M Buy
200,305
+12,647
+7% +$4.14M 0.19% 112
2024
Q2 		$58.6M Buy
187,658
+51,957
+38% +$15.3M 0.18% 118
2024
Q1 		$38.6M Buy
135,701
+21,970
+19% +$6.43M 0.12% 142
2023
Q4 		$32.8M Sell
113,731
-1,071
-0.9% -$292K 0.11% 155
2023
Q3 		$30.9M Buy
114,802
+11,296
+11% +$2.82M 0.12% 153
2023
Q2 		$23M Sell
103,506
-2,845
-3% -$660K 0.08% 183
2023
Q1 		$25.7M Sell
106,351
-692
-0.6% -$170K 0.1% 173
2022
Q4 		$28.1M Sell
107,043
-2,000
-2% -$536K 0.12% 156
2022
Q3 		$24.6M Buy
109,043
+3,793
+4% +$919K 0.11% 169
2022
Q2 		$25.6M Sell
105,250
-2,101
-2% -$515K 0.11% 164
2022
Q1 		$26M Sell
107,351
-530
-0.5% -$122K 0.09% 194
2021
Q4 		$24.3M Buy
107,881
+27,573
+34% +$5.82M 0.08% 216
2021
Q3 		$17.1M Buy
80,308
+4,963
+7% +$1.14M 0.06% 247
2021
Q2 		$18.4M Sell
75,345
-4,548
-6% -$1.12M 0.06% 232
2021
Q1 		$19.9M Sell
79,893
-30,763
-28% -$7.34M 0.08% 220
2020
Q4 		$25.4M Buy
110,656
+7,651
+7% +$1.76M 0.09% 184
2020
Q3 		$26.2M Sell
103,005
-8,580
-8% -$2.13M 0.11% 166
2020
Q2 		$26.3M Buy
111,585
+3,355
+3% +$765K 0.13% 149
2020
Q1 		$21.9M Sell
108,230
-2,350
-2% -$513K 0.14% 144
2019
Q4 		$26.7M Buy
110,580
+4,995
+5% +$1.1M 0.14% 158
2019
Q3 		$20.4M Sell
105,585
-6,062
-5% -$1.16M 0.12% 173
2019
Q2 		$20.6M Buy
111,647
+8,185
+8% +$1.47M 0.12% 171
2019
Q1 		$19.7M Sell
103,462
-7,043
-6% -$1.34M 0.12% 171
2018
Q4 		$21.5M Buy
110,505
+7,577
+7% +$1.48M 0.16% 139
2018
Q3 		$21.3M Buy
102,928
+12,262
+14% +$2.42M 0.13% 166
2018
Q2 		$16.7M Sell
90,666
-1,236
-1% -$219K 0.11% 178
2018
Q1 		$15.7M Sell
91,902
-5,075
-5% -$932K 0.11% 179
2017
Q4 		$16.9M Buy
96,977
+6,183
+7% +$1.09M 0.11% 181
2017
Q3 		$16.9M Buy
90,794
+8,422
+10% +$1.49M 0.13% 172
2017
Q2 		$14.2M Buy
82,372
+101
+0.1% +$16.4K 0.11% 200
2017
Q1 		$14.1M Sell
82,271
-24,477
-23% -$4.07M 0.11% 188
2016
Q4 		$15.6M Sell
106,748
-61,286
-36% -$9.22M 0.14% 165
2016
Q3 		$28M Buy
168,034
+2,287
+1% +$387K 0.25% 103
2016
Q2 		$25.2M Sell
165,747
-16,781
-9% -$2.61M 0.24% 113
2016
Q1 		$27.4M Sell
182,528
-917
-0.5% -$136K 0.26% 108
2015
Q4 		$29.8M Buy
183,445
+14,090
+8% +$2.21M 0.28% 99
2015
Q3 		$23.4M Buy
169,355
+16,832
+11% +$2.65M 0.2% 129
2015
Q2 		$23.4M Buy
152,523
+1,524
+1% +$244K 0.04% 574
2015
Q1 		$24.1M Buy
150,999
+646
+0.4% +$102K 0.04% 530
2014
Q4 		$23.9M Buy
150,353
+20,721
+16% +$3.23M 0.04% 537
2014
Q3 		$18.2M Buy
129,632
+10,032
+8% +$1.31M 0.03% 608
2014
Q2 		$14.2M Sell
119,600
-10,195
-8% -$1.18M 0.02% 719
2014
Q1 		$16M Buy
129,795
+1,282
+1% +$155K 0.03% 651
2013
Q4 		$14.7M Buy
128,513
+2,635
+2% +$300K 0.02% 657
2013
Q3 		$14.1M Buy
125,878
+9,283
+8% +$1.01M 0.03% 630
2013
Q2 		$11.5M Buy
+116,595
New +$12.1M 0.02% 660

Other funds holding AMGN

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return

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

William Blair & Company reduced its Amgen (AMGN) stake by 5% in Q1 2026, selling an estimated $2.92M and leaving 155,998 shares worth $54.9M. The position accounts for 0.16% of the portfolio, ranked #135.

William Blair & Company first reported a position in AMGN in Q2 2013 and has held it in 52 quarters since. The position peaked at $64.5M in Q3 2024. 3,129 funds tracked by Wall St. Rank hold AMGN as of Q1 2026.

  • William Blair & Company held 155,998 shares of Amgen worth $54.9M as of Q1 2026.
  • William Blair & Company sold 8,198 Amgen shares in Q1 2026, an estimated $2.92M.
  • Amgen made up 0.16% of William Blair & Company's portfolio in Q1 2026, its #135 holding.
  • William Blair & Company first reported a position in Amgen in Q2 2013 and has held it in 52 quarters since.
  • William Blair & Company's Amgen position peaked at $64.5M in Q3 2024.
  • 3,129 funds tracked by Wall St. Rank held Amgen as of Q1 2026.

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