Winston J. Churchill

CIK: 0000923792

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)3 (16.7%)

Position reduction

Option Exercises (M)4 (22.2%)

Derivative conversions

Awards (A)11 (61.1%)

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 (18 total)

AMKR
AMKOR TECHNOLOGY, INC.
Sep 22, 2026
Award(A)
Restricted Stock Units
Direct
4 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Jun 23, 2026
Award(A)
Restricted Stock Units
Direct
3 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Jun 12, 2026
Exercise(M)
Direct
5K shares at avg. $19.39$97K
AMKR
AMKOR TECHNOLOGY, INC.
Jun 12, 2026
Sale(S)
Direct
5K shares at avg. $78.20$391K
AMKR
AMKOR TECHNOLOGY, INC.
May 13, 2026
Award(A)
Restricted Stock Units
Direct
2.6K shares-
AMKR
AMKOR TECHNOLOGY, INC.
May 13, 2026
Exercise(M)
Direct
9.9K shares-
AMKR
AMKOR TECHNOLOGY, INC.
May 5, 2026
Sale(S)
Direct
7K shares at avg. $76.45$535K
AMKR
AMKOR TECHNOLOGY, INC.
Mar 31, 2026
Award(A)
Restricted Stock Units
Direct
18 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Dec 23, 2025
Award(A)
Restricted Stock Units
Direct
20 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Dec 15, 2025
Exercise(M)
Direct
5K shares at avg. $19.39$97K
AMKR
AMKOR TECHNOLOGY, INC.
Dec 15, 2025
Sale(S)
Direct
5K shares at avg. $44.29$221K
AMKR
AMKOR TECHNOLOGY, INC.
Sep 23, 2025
Award(A)
Restricted Stock Units
Direct
27 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Jun 25, 2025
Award(A)
Restricted Stock Units
Direct
39 shares-
AMKR
AMKOR TECHNOLOGY, INC.
May 15, 2025
Award(A)
Restricted Stock Units
Direct
9.8K shares-
AMKR
AMKOR TECHNOLOGY, INC.
May 14, 2025
Exercise(M)
Direct
6K shares-
AMKR
AMKOR TECHNOLOGY, INC.
Apr 2, 2025
Award(A)
Restricted Stock Units
Direct
26 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Dec 23, 2024
Award(A)
Restricted Stock Units
Direct
109 shares-
AMKR
AMKOR TECHNOLOGY, INC.
Sep 23, 2024
Award(A)
Restricted Stock Units
Direct
15 shares-

		Type	Shares	Price		Ownership
Sep 22, 2026	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	4	-	-	Direct
Jun 23, 2026	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	3	-	-	Direct
Jun 12, 2026	AMKR AMKOR TECHNOLOGY, INC.	Exercise(M)	5,000	$19.39	$96,950	Direct
Jun 12, 2026	AMKR AMKOR TECHNOLOGY, INC.	Sale(S)	5,000	$78.20	$391,000	Direct
May 13, 2026	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	2,613	-	-	Direct
May 13, 2026	AMKR AMKOR TECHNOLOGY, INC.	Exercise(M)	9,893	-	$0	Direct
May 5, 2026	AMKR AMKOR TECHNOLOGY, INC.	Sale(S)	7,000	$76.45	$535,150	Direct
Mar 31, 2026	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	18	-	-	Direct
Dec 23, 2025	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	20	-	-	Direct
Dec 15, 2025	AMKR AMKOR TECHNOLOGY, INC.	Exercise(M)	5,000	$19.39	$96,950	Direct
Dec 15, 2025	AMKR AMKOR TECHNOLOGY, INC.	Sale(S)	5,000	$44.29	$221,450	Direct
Sep 23, 2025	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	27	-	-	Direct
Jun 25, 2025	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	39	-	-	Direct
May 15, 2025	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	9,789	-	-	Direct
May 14, 2025	AMKR AMKOR TECHNOLOGY, INC.	Exercise(M)	6,017	-	-	Direct
Apr 2, 2025	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	26	-	-	Direct
Dec 23, 2024	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	109	-	-	Direct
Sep 23, 2024	AMKR AMKOR TECHNOLOGY, INC.	Award(A) Restricted Stock Units	15	-	-	Direct

1-18 of 18 transactions

About CHURCHILL WINSTON J

CHURCHILL WINSTON J (SEC CIK 0000923792) files insider reports with the SEC as Director of AMKOR TECHNOLOGY, INC. (AMKR).

Signal8 holds 14 ownership filings by CHURCHILL WINSTON J, all Form 4s, filed between Sep 25, 2024 and Sep 24, 2026. Those filings report 18 transactions, from Sep 23, 2024 to Sep 22, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on CHURCHILL WINSTON J's filings is in BOCA RATON, FL.

Recent filings by CHURCHILL WINSTON J

Sep 22, 2026: Grant or award of AMKR derivative securities (Form 4, code A).
Jun 23, 2026: Grant or award of AMKR derivative securities (Form 4, code A).
Jun 12, 2026: Option exercise of AMKR shares (Form 4, code M).
Jun 12, 2026: Open-market sale of AMKR shares (Form 4, code S).
May 13, 2026: Grant or award of AMKR derivative securities (Form 4, code A).

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

How to read Form 4 transaction codes