Amkor Technology Inc. (AMKR) Insider Trading

Last 12 months

Insiders sold $22.4M and bought nothing on the open market.

29% of the selling was scheduled in advance under 10b5-1 plans. Director Guillaume Marie Jean Rutten sold $3.71M on May 8, 9.0% of their stake, outside a plan. The last open-market buy by an executive or director was in Aug 2025.

Net open-market

−$22.4M

0 buys · 38 sales

Under a 10b5-1 plan

29%

of the value sold

Insiders who bought / sold

0 / 10

executives and directors

Last open-market buy

Aug 2025

Aug 1, 2025

Get an email when AMKR's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Oct 13	Megan Faust CFO	Sold10b5-1 plan	1,000	$46.92	$47k	0.7%	Form 4
Oct 2	Douglas A Alexander Director	Sold10b5-1 plan	5,000	$55.00	$275k	15%	Form 4
Sep 8	Megan Faust CFO	Sold10b5-1 plan	1,000	$49.05	$49k	0.7%	Form 4
Aug 17	Mark N Rogers EVP & General Counsel	Sold10b5-1 plan	5,000	$59.78	$299k	11%	Form 4
Aug 11	Megan Faust CFO	Sold10b5-1 plan	1,000	$54.45	$54k	0.7%	Form 4
Aug 7	Douglas A Alexander Director	Sold10b5-1 plan	5,000	$55.81	$279k	15%	Form 4
Aug 5 – 6	Guillaume Marie Jean Rutten Director	SoldNo plan 2 parts	50,000	$54.93 average	$2.75M	9.8%	Form 4
Jul 30	Kevin K. Engel President and CEO	SoldNo plan	3,221	$47.00	$151k	25%	Form 4
Jul 16	Mark N Rogers EVP & General Counsel	Sold10b5-1 plan	5,000	$65.12	$326k	11%	Form 4
Jul 14	Megan Faust CFO	Sold10b5-1 plan	1,000	$69.91	$70k	0.7%	Form 4
Jun 16	Mark N Rogers EVP & General Counsel	Sold10b5-1 plan	5,000	$86.21	$431k	11%	Form 4
Jun 12	Winston J Churchill Director	SoldNo plan	5,000	$78.20	$391k	15%	Form 4
Jun 9	Megan Faust CFO	Sold10b5-1 plan	1,000	$70.30	$70k	0.8%	Form 4
May 19	Megan Faust CFO	Sold10b5-1 plan	1,000	$64.60	$65k	0.7%	Form 4
May 18	Mark N Rogers EVP & General Counsel	Sold10b5-1 plan	5,000	$71.63	$358k	11%	Form 4
May 11	Gil C. Tily Director	SoldNo plan	15,000	$77.30	$1.16M	12%	Form 4
May 8	Guillaume Marie Jean Rutten Director	SoldNo plan	50,000	$74.28	$3.71M	9.0%	Form 4
May 5	Roger Anthony Carolin Director	SoldNo plan	20,000	$76.24	$1.52M	17%	Form 4
May 5	Winston J Churchill Director	SoldNo plan	7,000	$76.45	$535k	27%	Form 4
May 5	Douglas A Alexander Director	SoldNo plan 2 parts	5,000	$76.58 average	$383k	15%	Form 4
Apr 16	Mark N Rogers EVP & General Counsel	Sold10b5-1 plan	5,000	$59.43	$297k	11%	Form 4
Mar 16	Mark N Rogers EVP & General Counsel	Sold10b5-1 plan	5,000	$44.54	$223k	11%	Form 4
Feb 25	Farshad Haghighi Executive Vice President	SoldNo plan	15,624	$50.50	$789k	65%	Form 4
Feb 24	Kevin K. Engel President and CEO	SoldNo plan	12,500	$48.75	$609k	81%	Form 4
Feb 24	Guillaume Marie Jean Rutten Director	SoldNo plan	20,000	$48.80	$976k	3.5%	Form 4
Feb 17	Guillaume Marie Jean Rutten Director	Sold10b5-1 plan	10,000	$45.89	$459k	2.9%	Form 4
Feb 17	Kevin K. Engel President and CEO	SoldNo plan	5,316	$46.03	$245k	87%	Form 4
Feb 17	Mark N Rogers EVP & General Counsel	Sold10b5-1 plan	5,000	$46.92	$235k	17%	Form 4
Feb 12	915 Investments, LP Large holder	SoldNo plan	10,000,000	$48.49	$485M	25%	Form 4
Feb 12	John T Kim Large holder	SoldNo plan	10,000,000	$48.49	$485M	10%	Form 4
Jan 16	Mark N Rogers EVP & General Counsel	Sold10b5-1 plan	5,000	$49.28	$246k	17%	Form 4
Jan 15	Guillaume Marie Jean Rutten Director	Sold10b5-1 plan	10,000	$53.14	$531k	2.9%	Form 4
Dec 16, 2025	Mark N Rogers EVP & General Counsel	Sold10b5-1 plan	20,000	$42.95	$859k	46%	Form 4
Dec 15, 2025	Winston J Churchill Director	SoldNo plan	5,000	$44.29	$221k	16%	Form 4
Dec 15, 2025	Guillaume Marie Jean Rutten President and CEO	Sold10b5-1 plan	10,000	$44.80	$448k	2.9%	Form 4
Dec 12, 2025	Maryfrances McCourt Director	SoldNo plan	20,000	$46.02	$920k	26%	Form 4
Dec 12, 2025	Kevin Engel Executive Vice President	SoldNo plan	11,000	$46.21	$508k	97%	Form 4
Dec 12, 2025	Gil C. Tily Director	SoldNo plan	20,000	$46.44	$929k	14%	Form 4
Nov 17, 2025	Guillaume Marie Jean Rutten President and CEO	Sold10b5-1 plan	10,000	$31.68	$317k	2.8%	Form 4
Nov 17, 2025	Mark N Rogers EVP & General Counsel	Sold10b5-1 plan	20,000	$31.69	$634k	46%	Form 4

Oct 1310b5-1 plan
Megan Faust
CFO · sold 1,000 at $46.92
$47k
0.7% of stake
Oct 210b5-1 plan
Douglas A Alexander
Director · sold 5,000 at $55.00
$275k
15% of stake
Sep 810b5-1 plan
Megan Faust
CFO · sold 1,000 at $49.05
$49k
0.7% of stake
Aug 1710b5-1 plan
Mark N Rogers
EVP & General Counsel · sold 5,000 at $59.78
$299k
11% of stake
Aug 1110b5-1 plan
Megan Faust
CFO · sold 1,000 at $54.45
$54k
0.7% of stake
Aug 710b5-1 plan
Douglas A Alexander
Director · sold 5,000 at $55.81
$279k
15% of stake
Aug 5 – 6No plan
Guillaume Marie Jean Rutten
Director · sold 50,000 at avg $54.93
$2.75M
9.8% of stake
Jul 30No plan
Kevin K. Engel
President and CEO · sold 3,221 at $47.00
$151k
25% of stake
Jul 1610b5-1 plan
Mark N Rogers
EVP & General Counsel · sold 5,000 at $65.12
$326k
11% of stake
Jul 1410b5-1 plan
Megan Faust
CFO · sold 1,000 at $69.91
$70k
0.7% of stake
Jun 1610b5-1 plan
Mark N Rogers
EVP & General Counsel · sold 5,000 at $86.21
$431k
11% of stake
Jun 12No plan
Winston J Churchill
Director · sold 5,000 at $78.20
$391k
15% of stake
Jun 910b5-1 plan
Megan Faust
CFO · sold 1,000 at $70.30
$70k
0.8% of stake
May 1910b5-1 plan
Megan Faust
CFO · sold 1,000 at $64.60
$65k
0.7% of stake
May 1810b5-1 plan
Mark N Rogers
EVP & General Counsel · sold 5,000 at $71.63
$358k
11% of stake
May 11No plan
Gil C. Tily
Director · sold 15,000 at $77.30
$1.16M
12% of stake
May 8No plan
Guillaume Marie Jean Rutten
Director · sold 50,000 at $74.28
$3.71M
9.0% of stake
May 5No plan
Roger Anthony Carolin
Director · sold 20,000 at $76.24
$1.52M
17% of stake
May 5No plan
Winston J Churchill
Director · sold 7,000 at $76.45
$535k
27% of stake
May 5No plan
Douglas A Alexander
Director · sold 5,000 at avg $76.58
$383k
15% of stake
Apr 1610b5-1 plan
Mark N Rogers
EVP & General Counsel · sold 5,000 at $59.43
$297k
11% of stake
Mar 1610b5-1 plan
Mark N Rogers
EVP & General Counsel · sold 5,000 at $44.54
$223k
11% of stake
Feb 25No plan
Farshad Haghighi
Executive Vice President · sold 15,624 at $50.50
$789k
65% of stake
Feb 24No plan
Kevin K. Engel
President and CEO · sold 12,500 at $48.75
$609k
81% of stake
Feb 24No plan
Guillaume Marie Jean Rutten
Director · sold 20,000 at $48.80
$976k
3.5% of stake
Feb 1710b5-1 plan
Guillaume Marie Jean Rutten
Director · sold 10,000 at $45.89
$459k
2.9% of stake
Feb 17No plan
Kevin K. Engel
President and CEO · sold 5,316 at $46.03
$245k
87% of stake
Feb 1710b5-1 plan
Mark N Rogers
EVP & General Counsel · sold 5,000 at $46.92
$235k
17% of stake
Feb 12No plan
915 Investments, LP
Large holder · sold 10,000,000 at $48.49
$485M
25% of stake
Feb 12No plan
John T Kim
Large holder · sold 10,000,000 at $48.49
$485M
10% of stake
Jan 1610b5-1 plan
Mark N Rogers
EVP & General Counsel · sold 5,000 at $49.28
$246k
17% of stake
Jan 1510b5-1 plan
Guillaume Marie Jean Rutten
Director · sold 10,000 at $53.14
$531k
2.9% of stake
Dec 16, 202510b5-1 plan
Mark N Rogers
EVP & General Counsel · sold 20,000 at $42.95
$859k
46% of stake
Dec 15, 2025No plan
Winston J Churchill
Director · sold 5,000 at $44.29
$221k
16% of stake
Dec 15, 202510b5-1 plan
Guillaume Marie Jean Rutten
President and CEO · sold 10,000 at $44.80
$448k
2.9% of stake
Dec 12, 2025No plan
Maryfrances McCourt
Director · sold 20,000 at $46.02
$920k
26% of stake
Dec 12, 2025No plan
Kevin Engel
Executive Vice President · sold 11,000 at $46.21
$508k
97% of stake
Dec 12, 2025No plan
Gil C. Tily
Director · sold 20,000 at $46.44
$929k
14% of stake
Nov 17, 202510b5-1 plan
Guillaume Marie Jean Rutten
President and CEO · sold 10,000 at $31.68
$317k
2.8% of stake
Nov 17, 202510b5-1 plan
Mark N Rogers
EVP & General Counsel · sold 20,000 at $31.69
$634k
46% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch AMKR, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Spot a number that looks wrong? Check it in AMKR's SEC filings or

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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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