William Blair & Company
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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
2017
Q3 		– Sell
-100
Closed -$17K – 1366
2017
Q2 		$17K Buy
+100
New +$16.3K ﹤0.01% 1537

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.