AMKOR TECHNOLOGY INC (AMKR) Institutional Ownership Changes & 13F Activity

AMKOR TECHNOLOGY INC (AMKR). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Sequoia Financial Advisors, Renaissance Technologies LLC, First Eagle U.S. Value, ARK Invest, and Arbiter Partners Capital Management.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2015Renaissance Technologies LLCSell-220,5862,209,800$19,524
Q4 2014Renaissance Technologies LLCSell-260,1142,430,386$17,256
Q3 2014Renaissance Technologies LLCBuy1,047,2972,690,500$22,627
Q3 2014Arbiter Partners Capital ManagementSell-6,000131,711$1,108
Q2 2014Arbiter Partners Capital ManagementSell-510,000137,711$1,540
Q2 2014Renaissance Technologies LLCBuy477,7221,643,203$18,371
Q1 2014Renaissance Technologies LLCBuy270,8811,165,481$7,995
Q1 2014Arbiter Partners Capital ManagementBuy150,000647,711$4,443
Q4 2013Renaissance Technologies LLCBuy402,700894,600$5,484
Q4 2013Arbiter Partners Capital ManagementSell-150,000497,711$3,051
Q3 2013Renaissance Technologies LLCBuy290,100491,900$2,106
Q3 2013Arbiter Partners Capital ManagementBuy127,711647,711$2,775
Q2 2013Arbiter Partners Capital ManagementBuy520,000520,000$2,189
Q2 2013Renaissance Technologies LLCBuy201,800201,800$850

Frequently asked questions about AMKR activity

  • Which institutional owners are buying AMKR?

    Institutional owners buying AMKR include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in AMKR activity?

    "Buy" means an investor increased their reported position in AMKR compared to the prior reporting period. This reflects growing exposure to AMKOR TECHNOLOGY INC (AMKR) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in AMKR increasing?

    Institutional interest in AMKR can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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