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3,091 hedge funds and large institutions have $147B invested in Amgen in 2025 Q4 according to their latest regulatory filings, with 419 funds opening new positions, 1,183 increasing their positions, 1,109 reducing their positions, and 95 closing their positions.

New
Increased
Maintained
Reduced
Closed

341% more first-time investments, than exits

New positions opened: 419 | Existing positions closed: 95

79% more funds holding in top 10

Funds holding in top 10: 2952 (+23)

23% more capital invested

Capital invested by funds: $119B → $147B (+$27.4B)

12% more call options, than puts

Call options by funds: $2.14B | Put options by funds: $1.92B

9% more funds holding

Funds holding: 2,8243,091 (+267)

4.73% more ownership

Funds ownership: 78.59%83.32% (+4.7%)

7% more repeat investments, than reductions

Existing positions increased: 1,183 | Existing positions reduced: 1,109

Holders
3,091
Holders Change
+267
Holders Change %
+9.45%
% of All Funds
0%
Holding in Top 10
52
Holding in Top 10 Change
+23
Holding in Top 10 Change %
+79.31%
% of All Funds
0%
New
419
Increased
1,183
Reduced
1,109
Closed
95
Calls
$2.14B
Puts
$1.92B
Net Calls
+$222M
Net Calls Change
+$86.4M

AMGN Hedge Fund Activity: Q4 2025 in Review

3,091 institutional investors reported a position in Amgen (AMGN) for Q4 2025, worth a combined $147B — up 23% from $119B a quarter earlier.

Buyers outnumbered sellers: 419 funds opened new AMGN positions and 95 closed out — a net gain of 324 holders — while 1,183 added to existing stakes and 1,109 trimmed.

The largest buyer was Invesco, adding an estimated $3.94B. The largest seller was JP Morgan Chase, cutting an estimated $614M.

  • 3,091 institutional investors held Amgen (AMGN) as of Q4 2025, up from 2,824 in Q3 2025.
  • Funds reported $147B of Amgen stock for Q4 2025, up 23% quarter-over-quarter.
  • 419 funds opened new Amgen positions in Q4 2025 and 95 closed out, a net change of +324 holders.
  • The largest Amgen buyer in Q4 2025 was Invesco, an estimated $3.94B added.
  • The largest Amgen seller in Q4 2025 was JP Morgan Chase, an estimated $614M sold.

Based on aggregated 13F filings for Q4 2025.