Stock Ownership/AMGN

AMGEN INC (AMGN): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in AMGN · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
32
13F filers
Aggregate Value
$5.4B
Across holders
Last Price
$443.84
2026-08-24
Sector
Health Care
GICS
Quarterly fund activity22 increased10 reduced4 exited
Full exits: Alphadyne Asset Management LP, Qube Research & Technologies Ltd, CAPSTONE INVESTMENT ADVISORS, LLC, ORBIMED ADVISORS LLC
Institutional Holders of AMGN
↗
32 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
PRIMECAP MANAGEMENT CO/CA/
CIK 0000763212
Institutional Manager6.76M$2.4B45.3%1.4%Reduced$-766.7MQ2 2026
Fisher Asset Management, LLC
CIK 0000850529
Institutional Manager1.59M$575.6M10.7%0.2%Added+$4.2MQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund1.29M$467.2M8.7%0.2%Added+$397.3MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund1.13M$408.7M7.6%0.3%Added+$406.0MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund704K$254.9M4.7%0.0%Added$-190.8MQ2 2026
Rockefeller Capital Management L.P.
CIK 0001739439
Hedge Fund636K$230.4M4.3%0.4%Reduced$-1.3BQ2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
Hedge Fund472K$170.9M3.2%0.2%Added+$46.8MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund300K$107.8M2.0%0.0%Added+$107.7MQ2 2026
Hudson Bay Capital Management LP
CIK 0001393825
Hedge Fund281K$101.8M1.9%0.3%Added—Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund245K$88.8M1.6%0.0%Added—Q2 2026
PRIMECAP MANAGEMENT CO/CA/Reduced
Institutional Manager
$2.4B· 45.3% of total· 1.4% port· 6.76M sh· $-766.7M QoQ· Q2 2026
Fisher Asset Management, LLCAdded
Institutional Manager
$575.6M· 10.7% of total· 0.2% port· 1.59M sh· +$4.2M QoQ· Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$467.2M· 8.7% of total· 0.2% port· 1.29M sh· +$397.3M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$408.7M· 7.6% of total· 0.3% port· 1.13M sh· +$406.0M QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$254.9M· 4.7% of total· 0.0% port· 704K sh· $-190.8M QoQ· Q2 2026
Rockefeller Capital Management L.P.Reduced
Hedge Fund
$230.4M· 4.3% of total· 0.4% port· 636K sh· $-1.3B QoQ· Q2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.Added
Hedge Fund
$170.9M· 3.2% of total· 0.2% port· 472K sh· +$46.8M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$107.8M· 2.0% of total· 0.0% port· 300K sh· +$107.7M QoQ· Q2 2026
Hudson Bay Capital Management LPAdded
Hedge Fund
$101.8M· 1.9% of total· 0.3% port· 281K sh· — QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded
Hedge Fund
$88.8M· 1.6% of total· 0.0% port· 245K sh· — QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$87.0M· 1.6% of total· 0.3% port· 240K sh· +$80.7M QoQ· Q2 2026
Woodline Partners LPAdded
Hedge Fund
$86.2M· 1.6% of total· 0.3% port· 238K sh· +$11.7M QoQ· Q2 2026
Man Group plcAdded
Hedge Fund
$84.7M· 1.6% of total· 0.1% port· 234K sh· $-17.2M QoQ· Q2 2026
Squarepoint Ops LLCAdded
Hedge Fund
$75.3M· 1.4% of total· 0.1% port· 208K sh· +$50.7M QoQ· Q2 2026
PineBridge Investments, L.P.Added
Hedge Fund
$43.0M· 0.8% of total· 0.3% port· 153K sh· +$9.5M QoQ· Q3 2025
MARSHALL WACE, LLPReduced
Hedge Fund
$36.0M· 0.7% of total· 0.0% port· 99K sh· +$35.9M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCReduced
Hedge Fund
$28.7M· 0.5% of total· 0.0% port· 79K sh· $-70.5M QoQ· Q2 2026
Clearbridge Investments, LLCReduced
Hedge Fund
$25.0M· 0.5% of total· 0.0% port· 69K sh· $-439K QoQ· Q2 2026
Gotham Asset Management, LLCReduced
Hedge Fund
$16.9M· 0.3% of total· 0.0% port· 47K sh· $-278K QoQ· Q2 2026
Ancora Advisors, LLCReduced
Hedge Fund
$12.5M· 0.2% of total· 0.2% port· 35K sh· +$10.1M QoQ· Q2 2026
TCW GROUP INCAdded
Hedge Fund
$10.3M· 0.2% of total· 0.1% port· 28K sh· $-1.2M QoQ· Q2 2026
Bridgewater Associates, LPAdded
Hedge Fund
$7.9M· 0.1% of total· 0.0% port· 22K sh· +$2.6M QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$6.8M· 0.1% of total· 0.1% port· 19K sh· +$3.1M QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCAdded
Hedge Fund
$6.5M· 0.1% of total· 0.0% port· 18K sh· +$3.6M QoQ· Q2 2026
FRED ALGER MANAGEMENT, LLCAdded
Hedge Fund
$5.1M· 0.1% of total· 0.0% port· 14K sh· +$299K QoQ· Q2 2026
DODGE & COXReduced
Institutional Manager
$4.6M· 0.1% of total· 0.0% port· 13K sh· $-199K QoQ· Q2 2026
Bridgewater Advisors Inc.Added
Hedge Fund
$2.1M· 0.0% of total· 0.1% port· 5K sh· +$1.1M QoQ· Q2 2026
Parallax Volatility Advisers, L.P.Added
Hedge Fund
$1.9M· 0.0% of total· 0.0% port· 5K sh· +$204K QoQ· Q2 2026
GAMCO INVESTORS, INC. ET ALReduced
Institutional Manager
$1.7M· 0.0% of total· 0.0% port· 5K sh· $-147K QoQ· Q2 2026
Lighthouse Investment Partners, LLCAdded
Hedge Fund
$1.4M· 0.0% of total· 0.0% port· 4K sh· — QoQ· Q2 2026
Fulcrum Asset Management LLPAdded
Hedge Fund
$965K· 0.0% of total· 0.1% port· 3K sh· — QoQ· Q2 2026
Verition Fund Management LLCReduced
Hedge Fund
$648K· 0.0% of total· 0.0% port· 2K sh· $-7.0M QoQ· Q2 2026
1–10 of 32
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