Douglas A. Alexander

CIK: 0001195858

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)4 (10.0%)

Position reduction

Option Exercises (M)5 (12.5%)

Derivative conversions

Awards (A)31 (77.5%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

AMKR

AMKOR TECHNOLOGY, INC.

Director

Discretionary Trading P&L

Holdings

Transaction History (40 total)

AMKR
AMKOR TECHNOLOGY, INC.
Oct 2, 2026
Exercise(M)
Direct
5K shares at avg. $8.51$43K
AMKR
AMKOR TECHNOLOGY, INC.
Oct 2, 2026
Sale(S)
Direct
5K shares at avg. $55.00$275K
AMKR
AMKOR TECHNOLOGY, INC.
Sep 22, 2026
Award(A)
Restricted Stock Units
Direct
4 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Sep 22, 2026
Award(A)
Restricted Stock Units
Direct
15 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Sep 22, 2026
Award(A)
Restricted Stock Units
Direct
13 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Sep 22, 2026
Award(A)
Restricted Stock Units
Direct
13 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Aug 7, 2026
Exercise(M)
Direct
5K shares at avg. $8.51$43K
AMKR
AMKOR TECHNOLOGY, INC.
Aug 7, 2026
Sale(S)
Direct
5K shares at avg. $55.81$279K
AMKR
AMKOR TECHNOLOGY, INC.
Jun 23, 2026
Award(A)
Restricted Stock Units
Direct
8 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Jun 23, 2026
Award(A)
Restricted Stock Units
Direct
8 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Jun 23, 2026
Award(A)
Restricted Stock Units
Direct
9 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Jun 23, 2026
Award(A)
Restricted Stock Units
Direct
3 shares-
AMKR
AMKOR TECHNOLOGY, INC.
May 13, 2026
Award(A)
Restricted Stock Units
Direct
2.6K shares-
AMKR
AMKOR TECHNOLOGY, INC.
May 5, 2026
Sale(S)
Direct
4.7K shares at avg. $76.58$357K
AMKR
AMKOR TECHNOLOGY, INC.
May 5, 2026
Exercise(M)
Direct
4.7K shares at avg. $9.45$44K
AMKR
AMKOR TECHNOLOGY, INC.
May 5, 2026
Exercise(M)
Direct
343 shares at avg. $8.51$3K
AMKR
AMKOR TECHNOLOGY, INC.
May 5, 2026
Sale(S)
Direct
343 shares at avg. $76.58$26K
AMKR
AMKOR TECHNOLOGY, INC.
Mar 31, 2026
Award(A)
Restricted Stock Units
Direct
18 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Mar 31, 2026
Award(A)
Restricted Stock Units
Direct
16 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Mar 31, 2026
Award(A)
Restricted Stock Units
Direct
16 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Dec 23, 2025
Award(A)
Restricted Stock Units
Direct
20 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Dec 23, 2025
Award(A)
Restricted Stock Units
Direct
17 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Dec 23, 2025
Award(A)
Restricted Stock Units
Direct
18 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Sep 23, 2025
Award(A)
Restricted Stock Units
Direct
27 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Sep 23, 2025
Award(A)
Restricted Stock Units
Direct
24 shares-

		Type	Shares	Price		Ownership
Oct 2, 2026	AMKR AMKOR TECHNOLOGY, INC.	Exercise(M)	5,000	$8.51	$42,550	Direct
Oct 2, 2026	AMKR AMKOR TECHNOLOGY, INC.	Sale(S)	5,000	$55.00	$275,000	Direct
Sep 22, 2026	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	4	-	-	Direct
Sep 22, 2026	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	15	-	-	Direct
Sep 22, 2026	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	13	-	-	Direct
Sep 22, 2026	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	13	-	-	Direct
Aug 7, 2026	AMKR AMKOR TECHNOLOGY, INC.	Exercise(M)	5,000	$8.51	$42,550	Direct
Aug 7, 2026	AMKR AMKOR TECHNOLOGY, INC.	Sale(S)	5,000	$55.81	$279,050	Direct
Jun 23, 2026	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	8	-	-	Direct
Jun 23, 2026	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	8	-	-	Direct
Jun 23, 2026	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	9	-	-	Direct
Jun 23, 2026	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	3	-	-	Direct
May 13, 2026	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	2,613	-	-	Direct
May 5, 2026	AMKR AMKOR TECHNOLOGY, INC.	Sale(S)	4,657	$76.58	$356,633	Direct
May 5, 2026	AMKR AMKOR TECHNOLOGY, INC.	Exercise(M)	4,657	$9.45	$44,009	Direct
May 5, 2026	AMKR AMKOR TECHNOLOGY, INC.	Exercise(M)	343	$8.51	$2,919	Direct
May 5, 2026	AMKR AMKOR TECHNOLOGY, INC.	Sale(S)	343	$76.58	$26,267	Direct
Mar 31, 2026	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	18	-	-	Direct
Mar 31, 2026	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	16	-	-	Direct
Mar 31, 2026	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	16	-	-	Direct
Dec 23, 2025	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	20	-	-	Direct
Dec 23, 2025	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	17	-	-	Direct
Dec 23, 2025	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	18	-	-	Direct
Sep 23, 2025	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	27	-	-	Direct
Sep 23, 2025	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	24	-	-	Direct

1-25 of 40 transactions

About ALEXANDER DOUGLAS A

ALEXANDER DOUGLAS A (SEC CIK 0001195858) files insider reports with the SEC as Director of AMKOR TECHNOLOGY, INC. (AMKR).

Signal8 holds 14 ownership filings by ALEXANDER DOUGLAS A, all Form 4s, filed between Sep 25, 2024 and Oct 6, 2026. Those filings report 40 transactions, from Sep 23, 2024 to Oct 2, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on ALEXANDER DOUGLAS A's filings is in TEMPE, AZ.

Recent filings by ALEXANDER DOUGLAS A

Oct 2, 2026: Option exercise of AMKR shares (Form 4, code M).
Oct 2, 2026: Open-market sale of AMKR shares (Form 4, code S).
Sep 22, 2026: Grants or awards of AMKR derivative securities (4 lines, Form 4, code A).
Aug 7, 2026: Option exercise of AMKR shares (Form 4, code M).
Aug 7, 2026: Open-market sale of AMKR shares (Form 4, code S).

Other insiders filing for AMKOR TECHNOLOGY, INC. (AMKR)

How to read Form 4 transaction codes