Amkor Technology Ownership & Insider Activity

Amkor Technology (AMKR) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 5.8% of shares outstanding. Institutional investors hold 29.1%. Over the past 90 days, insiders made 5 sales worth $3.1M.

Shares Outstanding

248.452M

Shares Float

61.560M

Insider Shares Owned

14.514M

Insider % Owned

5.8%

Institutional Shares Held

72.292M

Institutional % Held

29.1%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$3.1M total

Net Activity

Net Selling

Net Value (90d)

-$3.1M

Amkor Technology Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Sep 8, 2026	Megan Faust	CFO	SELL	1.000K	$49.05	$49K
Aug 17, 2026	Mark N Rogers	EVP & GENERAL COUNSEL	SELL-OPTIONS	—	$33.59	$262K
Aug 11, 2026	Megan Faust	CFO	SELL	1.000K	$54.45	$54K
Aug 7, 2026	Douglas A Alexander	DIRECTOR	SELL-OPTIONS	—	$32.16	$237K
Aug 5, 2026	Guillaume Marie Jean Rutten	DIRECTOR	SELL	50.000K	$54.92	$2.7M
Jul 30, 2026	Kevin Engel	PRESIDENT AND CEO	SELL	3.221K	$47.00	$151K
Jul 16, 2026	Mark N Rogers	EVP & GENERAL COUNSEL	SELL-OPTIONS	—	$36.26	$289K
Jul 14, 2026	Megan Faust	CFO	SELL	1.000K	$69.91	$70K
Jun 16, 2026	Mark N Rogers	EVP & GENERAL COUNSEL	SELL-OPTIONS	—	$46.80	$394K
Jun 12, 2026	Winston J Churchill	DIRECTOR	SELL-OPTIONS	—	$48.80	$294K
Jun 9, 2026	Megan Faust	CFO	SELL	1.000K	$70.30	$70K
May 19, 2026	Megan Faust	CFO	SELL	1.000K	$64.60	$65K
May 18, 2026	Mark N Rogers	EVP & GENERAL COUNSEL	SELL-OPTIONS	—	$39.52	$321K
May 11, 2026	Gil C Tily	DIRECTOR	SELL	15.000K	$77.30	$1.2M
May 8, 2026	Guillaume Marie Jean Rutten	DIRECTOR	SELL	50.000K	$74.28	$3.7M
May 5, 2026	Roger A. Carolin	DIRECTOR	SELL-OPTIONS	—	$43.97	$1.3M
May 5, 2026	Winston J Churchill	DIRECTOR	SELL	7.000K	$76.45	$535K
May 5, 2026	Douglas A Alexander	DIRECTOR	SELL-OPTIONS	—	$42.98	$336K
Apr 16, 2026	Mark N Rogers	EVP & GENERAL COUNSEL	SELL-OPTIONS	—	$33.41	$260K

Date	Member	Party	Chamber	Action	Amount
Feb 4, 2026	Markwayne Mullin	R	Senate	Purchase	$15,001 - $50,000
Jan 5, 2026	Markwayne Mullin	R	Senate	Purchase	$15,001 - $50,000
Jan 5, 2026	Markwayne Mullin	R	Senate	Purchase	$15,001 - $50,000