AMKR | Amkor Technology | Owners

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Amkor Technology (AMKR)

NASDAQ

$38.55-$5.18 (-11.85%)

Price as of Oct 22, 2026 7:15 PM EDT

$10.9B
Market Cap
43.10%
1-Year Change
Semiconductor Equipment & Materials
Industry

Top Holders

Institutional

Mutual Funds

Holder	Ownership %	Shares Held	Change (Shares, %)	Report Date
VANGUARD GROUP INC	6.32%	15.7M	-75,675 (-0.48%)	Dec 31, 2025
BLACKROCK, INC.	4.95%	12.3M	-676,005 (-5.50%)	Jun 30, 2026
BLACKROCK INC.	4.88%	12.1M	-3.1M (-25.27%)	Jun 30, 2024
BLACKROCK FUNDING, INC. /DE	4.38%	10.9M	-536,322 (-4.93%)	Dec 31, 2024
N/A	3.91%	9.7M	+616,705 (+6.35%)	Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC	3.91%	9.7M	+616,705 (+6.35%)	Jun 30, 2026
DIMENSIONAL FUND ADVISORS LP	3.25%	8.1M	-2.9M (-36.30%)	Jun 30, 2026

Holder	Ownership %	Shares Held	Change (Shares, %)	Report Date
VANGUARD INDEX FUNDS	5.01%	12.5M	+2.6M (+20.78%)	Jun 30, 2026
DFA INVESTMENT DIMENSIONS GROUP INC	1.49%	3.7M	-1.2M (-32.62%)	Jul 31, 2026
Dimensional ETF Trust	1.35%	3.3M	-342,966 (-10.25%)	Jul 31, 2026
INVESCO EXCHANGE-TRADED FUND TRUST	0.92%	2.3M	+667,460 (+29.08%)	Jul 31, 2026
VANGUARD WORLD FUND	0.87%	2.2M	-962,985 (-44.60%)	May 31, 2026
SCHWAB STRATEGIC TRUST	0.63%	1.6M	-151,470 (-9.67%)	May 31, 2026
GuideStone Funds	0.55%	1.4M	0 (0.00%)	Jun 30, 2026

Current Ownership Distribution

Institutions2.0B (67.47%)
Mutual Funds811.3M (27.37%)
Insiders153.1M (5.17%)
Other0 (0.00%)

Insider Transactions

5.17% (153.1M)
Current InsiderOwnership (%, shares)
0
Number of InsiderBuying (last 12 months)
$0.00
Amount of InsiderBuying (last 12 months)
6
Number of InsiderSelling (last 12 months)
$111.0M
Amount of InsiderSelling (last 12 months)

Insider Name & Title	Type	Date	Transaction Value	Shares	Share Price	Shares After Transactions
Faust Megan CFO	Sell	Oct 13, 2026	$46,920.00	1,000	$46.92	133,105
ALEXANDER DOUGLAS A	Exempt	Oct 02, 2026	$0.00	5,000	$0.00	9,657
ALEXANDER DOUGLAS A	Exempt	Oct 02, 2026	$42,550.00	5,000	$8.51	34,109
ALEXANDER DOUGLAS A	Sell	Oct 02, 2026	$275,000.00	5,000	$55.00	29,109
Tily Gil C.	Award	Sep 22, 2026	$0.00	4	$0.00	2,620
WATSON DAVID N	Award	Sep 22, 2026	$0.00	4	$0.00	2,620
McCourt MaryFrances	Award	Sep 22, 2026	$0.00	13	$0.00	8,917
KIM SUSAN Y	Award	Sep 22, 2026	$0.00	4	$0.00	2,620
Liao Daniel JL	Award	Sep 22, 2026	$0.00	15	$0.00	9,917
Carolin Roger Anthony	Award	Sep 22, 2026	$0.00	13	$0.00	8,917
McCourt MaryFrances	Award	Sep 22, 2026	$0.00	4	$0.00	2,620
Rutten Guillaume Marie Jean	Award	Sep 22, 2026	$0.00	4	$0.00	2,620
ALEXANDER DOUGLAS A	Award	Sep 22, 2026	$0.00	13	$0.00	9,260
Carolin Roger Anthony	Award	Sep 22, 2026	$0.00	15	$0.00	9,917
Morse Robert Randolph	Award	Sep 22, 2026	$0.00	13	$0.00	8,917
Carolin Roger Anthony	Award	Sep 22, 2026	$0.00	4	$0.00	2,620
Liao Daniel JL	Award	Sep 22, 2026	$0.00	4	$0.00	2,620
Morse Robert Randolph	Award	Sep 22, 2026	$0.00	15	$0.00	9,917
ALEXANDER DOUGLAS A	Award	Sep 22, 2026	$0.00	13	$0.00	8,917
Morse Robert Randolph	Award	Sep 22, 2026	$0.00	4	$0.00	2,620
ALEXANDER DOUGLAS A	Award	Sep 22, 2026	$0.00	15	$0.00	9,917
ALEXANDER DOUGLAS A	Award	Sep 22, 2026	$0.00	4	$0.00	2,620
Faust Megan CFO	Sell	Sep 08, 2026	$49,050.00	1,000	$49.05	134,105
ROGERS MARK N EVP & General Counsel	Exempt	Aug 17, 2026	$0.00	5,000	$0.00	70,000
ROGERS MARK N EVP & General Counsel	Exempt	Aug 17, 2026	$37,000.00	5,000	$7.40	43,904
ROGERS MARK N EVP & General Counsel	Sell	Aug 17, 2026	$298,900.00	5,000	$59.78	38,904
Faust Megan CFO	Sell	Aug 11, 2026	$54,450.00	1,000	$54.45	135,105
ALEXANDER DOUGLAS A	Exempt	Aug 07, 2026	$0.00	5,000	$0.00	14,657
ALEXANDER DOUGLAS A	Exempt	Aug 07, 2026	$42,550.00	5,000	$8.51	34,109
ALEXANDER DOUGLAS A	Sell	Aug 07, 2026	$279,050.00	5,000	$55.81	29,109