Diadema Partners’s Amgen AMGN Stock Holding History

Diadema Partners’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
2025 Q3	–	Sell	-62,100	Closed	-$17.3M	–	133
2025 Q2	$17.3M	Buy	62,100 +10,000	+19%	+$2.83M	5.28%	2
2025 Q1	$16.2M	Buy	+52,100	New	+$15.4M	4.24%	6

Other funds holding AMGN

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return

Wells Fargo San Francisco, California $530B AUM 22.01% 1-Year Est. Return

Diadema Partners's AMGN Position: Q3 2025 in Review

Diadema Partners sold out of Amgen (AMGN) in Q3 2025, closing a stake of 52,100 shares — an estimated $14.5M sold.

Diadema Partners first reported a position in AMGN in Q2 2025 and held it in 1 quarter. The position peaked at $14.5M in Q2 2025. 2,819 funds tracked by Wall St. Rank hold AMGN as of Q3 2025.

Diadema Partners reported no remaining Amgen position as of Q3 2025 after selling out during the quarter.
Diadema Partners sold 52,100 Amgen shares in Q3 2025, an estimated $14.5M.
Diadema Partners first reported a position in Amgen in Q2 2025 and held it in 1 quarter.
Diadema Partners's Amgen position peaked at $14.5M in Q2 2025.
2,819 funds tracked by Wall St. Rank held Amgen as of Q3 2025.

Based on Diadema Partners's 13F filing for Q3 2025, filed 14 Nov 2025.