What does CUSIP 031652100 represent in this 13F holders report?

CUSIP 031652100 is the security identifier for AMKR - AMKOR TECHNOLOGY, INC. - Common Stock used to aggregate holder disclosures.

How many institutions held AMKR - AMKOR TECHNOLOGY, INC. - Common Stock in Q4 2017?

173 institutional investors reported AMKR - AMKOR TECHNOLOGY, INC. - Common Stock for Q4 2017. Use the holders table for investor-level position and value details.

AMKOR TECHNOLOGY, INC. - Common Stock (AMKR)

CUSIP: 031652100

Q4 2017 13F Holders as of 31 Dec 2017

Type / Class: Equity / Common Stock
Shares outstanding: 249,806,114
Total 13F shares: 96,328,845
Share change: -280,741
Total reported value: $968,141,777
Put/Call ratio: 80%
Price per share: $10.05
Number of holders: 173
Value change: -$4,609,224
Number of buys: 95
Number of sells: 66

Quarterly Holders Quick Answers

What is CUSIP 031652100?
CUSIP 031652100 identifies AMKR - AMKOR TECHNOLOGY, INC. - Common Stock in SEC institutional holdings data.

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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q1 2018
Previous quarter: Q3 2017

Recent filing periods for CUSIP 031652100:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of AMKR - AMKOR TECHNOLOGY, INC. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
DIMENSIONAL FUND ADVISORS LP	13F	Company	5.9%	14,647,937	$154,536,000	—	30 Sep 2017	13F
VANGUARD GROUP INC	13F	Company	5%	12,584,877	$132,770,000	—	30 Sep 2017	13F
LSV ASSET MANAGEMENT	13F	Company	3.5%	8,751,257	$92,325,000	—	30 Sep 2017	13F
BlackRock Finance, Inc.	13F	Company	3%	7,378,538	$77,844,000	—	30 Sep 2017	13F
AJO, LP	13F	Company	1.9%	4,641,220	$48,965,000	—	30 Sep 2017	13F
NORTHERN TRUST CORP	13F	Company	1.3%	3,207,459	$33,838,000	—	30 Sep 2017	13F
JPMORGAN CHASE & CO	13F	Company	1.2%	2,916,678	$30,771,000	—	30 Sep 2017	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.92%	2,294,600	$24,208,000	—	30 Sep 2017	13F
STATE STREET CORP	13F	Company	0.91%	2,265,210	$23,900,000	—	30 Sep 2017	13F
NORGES BANK	13F	Company	0.9%	2,243,326	$23,667,000	—	30 Sep 2017	13F
Nuveen Asset Management, LLC	13F	Company	0.83%	2,081,265	$21,957,000	—	30 Sep 2017	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.72%	1,804,525	$19,036,000	—	30 Sep 2017	13F
Walthausen & Co., LLC	13F	Company	0.71%	1,783,395	$18,815,000	—	30 Sep 2017	13F
D. E. Shaw & Co., Inc.	13F	Company	0.71%	1,769,810	$18,671,000	—	30 Sep 2017	13F
Point72 Asset Management, L.P.	13F	Company	0.66%	1,637,400	$17,275,000	—	30 Sep 2017	13F
Connor, Clark & Lunn Investment Management Ltd.	13F	Company	0.55%	1,381,809	$14,578,000	—	30 Sep 2017	13F
TWO SIGMA ADVISERS, LP	13F	Company	0.53%	1,329,742	$14,029,000	—	30 Sep 2017	13F
Matarin Capital Management, LLC	13F	Company	0.51%	1,268,723	$13,385,028	—	30 Sep 2017	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.48%	1,201,658	$12,678,000	—	30 Sep 2017	13F
Rubric Capital Management LP	13F	Company	0.48%	1,188,718	$12,541,000	—	30 Sep 2017	13F
AQR CAPITAL MANAGEMENT LLC	13F	Company	0.47%	1,170,635	$12,350,000	—	30 Sep 2017	13F
PRUDENTIAL FINANCIAL INC	13F	Company	0.44%	1,087,072	$11,469,000	—	30 Sep 2017	13F
Marshall Wace North America L.P.	13F	Company	0.41%	1,025,799	$11,284,000	—	30 Sep 2017	13F
Bank of New York Mellon Corp	13F	Company	0.39%	963,347	$10,163,000	—	30 Sep 2017	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.38%	951,525	$10,039,000	—	30 Sep 2017	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.27%	667,478	$7,042,000	—	30 Sep 2017	13F
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F	Company	0.25%	635,602	$6,706,000	—	30 Sep 2017	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	0.24%	611,710	$6,454,000	—	30 Sep 2017	13F
AXA S.A.	13F	Company	0.24%	587,300	$6,196,000	—	30 Sep 2017	13F
NEW YORK STATE COMMON RETIREMENT FUND	13F	Company	0.23%	563,614	$5,946,000	—	30 Sep 2017	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	0.2%	490,810	$5,178,000	—	30 Sep 2017	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	0.19%	468,963	$4,948,000	—	30 Sep 2017	13F
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F	Company	0.18%	457,491	$4,827,000	—	30 Sep 2017	13F
BARROW HANLEY MEWHINNEY & STRAUSS LLC	13F	Company	0.18%	454,935	$4,800,000	—	30 Sep 2017	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	0.17%	415,434	$4,382,000	—	30 Sep 2017	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.15%	371,781	$3,923,000	—	30 Sep 2017	13F
Allianz Asset Management GmbH	13F	Company	0.14%	354,172	$3,736,000	—	30 Sep 2017	13F
QS Investors, LLC	13F	Company	0.13%	322,579	$3,403,000	—	30 Sep 2017	13F
Nationwide Fund Advisors	13F	Company	0.13%	315,467	$3,328,000	—	30 Sep 2017	13F
JAMES INVESTMENT RESEARCH, INC.	13F	Company	0.12%	307,285	$3,242,000	—	30 Sep 2017	13F
Piermont Capital Management Inc.	13F	Company	0.12%	290,780	$3,068,000	—	30 Sep 2017	13F
DEUTSCHE BANK AG\	13F	Company	0.11%	265,666	$2,799,000	—	30 Sep 2017	13F
Alberta Investment Management Corp	13F	Company	0.09%	231,972	$2,447,000	—	30 Sep 2017	13F
Vident Investment Advisory, LLC	13F	Company	0.09%	215,987	$2,279,000	—	30 Sep 2017	13F
FIRST TRUST ADVISORS LP	13F	Company	0.08%	211,245	$2,229,000	—	30 Sep 2017	13F
CREDIT SUISSE AG/	13F	Company	0.08%	207,656	$2,191,000	—	30 Sep 2017	13F
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM	13F	Company	0.08%	192,143	$2,027,000	—	30 Sep 2017	13F
TEACHERS ADVISORS, LLC	13F	Company	0.07%	185,931	$1,962,000	—	30 Sep 2017	13F
Zebra Capital Management LLC	13F	Company	0.07%	180,487	$1,904,000	—	30 Sep 2017	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	0.07%	176,830	$1,866,000	—	30 Sep 2017	13F

Institutional Holders of AMKOR TECHNOLOGY, INC. - Common Stock (AMKR) as of Q4 2017

As of 31 Dec 2017, AMKOR TECHNOLOGY, INC. - Common Stock (AMKR) was held by 173 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 96,328,845 shares. The largest 10 holders included DIMENSIONAL FUND ADVISORS LP, Vanguard Group Inc, LSV ASSET MANAGEMENT, BlackRock Inc., AJO, LP, NORTHERN TRUST CORP, JPMORGAN CHASE & CO, Nuveen Asset Management, LLC, STATE STREET CORP, and RENAISSANCE TECHNOLOGIES LLC. This page lists 173 institutional shareholders reporting positions in this security for the Q4 2017 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q4 2017 vs Q3 2017 Across Filers

Q3 2017 holders

151

Q4 2017 holders

173

Holder diff

Investor	Q3 2017 Shares	Q4 2017 Shares	Share Diff	Share Chg %	Q3 2017 Value $	Q4 2017 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.