Jason Child

CIK: 0001533913

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)5 (31.3%)

Position reduction

Option Exercises (M)2 (12.5%)

Derivative conversions

Awards (A)8 (50.0%)

Compensation grants

Other (G, F, J, C, D, …)1 (6.3%)

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

Companies & Roles (2)

ARM

ARM HOLDINGS PLC /UK

Officer

CPNG

Coupang, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (16 total)

ARM
ARM HOLDINGS PLC /UK
Sep 21, 2026
Sale(S)
Direct
10.4K shares at avg. $300.00$3.1M
ARM
ARM HOLDINGS PLC /UK
Aug 27, 2026
Sale(S)
Direct
10.4K shares at avg. $255.33$2.7M
CPNG
Coupang, Inc.
Jun 11, 2026
Award(A)
Direct
21.3K shares-
ARM
ARM HOLDINGS PLC /UK
May 20, 2026
Sale(S)
Direct
31.9K shares at avg. $226.54$7.2M
ARM
ARM HOLDINGS PLC /UK
May 15, 2026
Exercise(M)
Direct
4.6K shares-
ARM
ARM HOLDINGS PLC /UK
May 15, 2026
Award(A)
Direct
57.6K shares-
ARM
ARM HOLDINGS PLC /UK
May 15, 2026
Tax Payment(F)
Direct
38K shares at avg. $209.16$7.9M
ARM
ARM HOLDINGS PLC /UK
May 15, 2026
Award(A)
Direct
11.9K shares-
ARM
ARM HOLDINGS PLC /UK
May 15, 2026
Exercise(M)
Direct
4.7K shares-
ARM
ARM HOLDINGS PLC /UK
May 15, 2026
Award(A)
Direct
11.8K shares-
ARM
ARM HOLDINGS PLC /UK
Apr 22, 2026
Sale(S)
Direct
21.3K shares at avg. $180.00$3.8M
ARM
ARM HOLDINGS PLC /UK
Mar 25, 2026
Sale(S)
Direct
21.3K shares at avg. $148.37$3.2M
CPNG
Coupang, Inc.
Mar 18, 2026
Award(A)
Direct
1.1K shares-
CPNG
Coupang, Inc.
Jun 12, 2025
Award(A)
Direct
353 shares-
CPNG
Coupang, Inc.
Jun 12, 2025
Award(A)
Direct
11.5K shares-
CPNG
Coupang, Inc.
Apr 1, 2025
Award(A)
Direct
88 shares-

		Type	Shares	Price		Ownership
Sep 21, 2026	ARM ARM HOLDINGS PLC /UK	Sale(S)	10,400	$300.00	$3,120,000	Direct
Aug 27, 2026	ARM ARM HOLDINGS PLC /UK	Sale(S)	10,400	$255.33	$2,655,432	Direct
Jun 11, 2026	CPNG Coupang, Inc.	Award(A)	21,304	-	$0	Direct
May 20, 2026	ARM ARM HOLDINGS PLC /UK	Sale(S)	31,920	$226.54	$7,231,157	Direct
May 15, 2026	ARM ARM HOLDINGS PLC /UK	Exercise(M)	4,647	-	$0	Direct
May 15, 2026	ARM ARM HOLDINGS PLC /UK	Award(A)	57,601	-	$0	Direct
May 15, 2026	ARM ARM HOLDINGS PLC /UK	Tax Payment(F)	37,950	$209.16	$7,937,622	Direct
May 15, 2026	ARM ARM HOLDINGS PLC /UK	Award(A)	11,909	-	$0	Direct
May 15, 2026	ARM ARM HOLDINGS PLC /UK	Exercise(M)	4,670	-	$0	Direct
May 15, 2026	ARM ARM HOLDINGS PLC /UK	Award(A)	11,849	-	$0	Direct
Apr 22, 2026	ARM ARM HOLDINGS PLC /UK	Sale(S)	21,280	$180.00	$3,830,400	Direct
Mar 25, 2026	ARM ARM HOLDINGS PLC /UK	Sale(S)	21,280	$148.37	$3,157,314	Direct
Mar 18, 2026	CPNG Coupang, Inc.	Award(A)	1,147	-	$0	Direct
Jun 12, 2025	CPNG Coupang, Inc.	Award(A)	353	-	$0	Direct
Jun 12, 2025	CPNG Coupang, Inc.	Award(A)	11,480	-	-	Direct
Apr 1, 2025	CPNG Coupang, Inc.	Award(A)	88	-	-	Direct

1-16 of 16 transactions

About Child Jason

Child Jason (SEC CIK 0001533913) files insider reports with the SEC as Chief Financial Officer of ARM HOLDINGS PLC /UK (ARM) and Director of Coupang, Inc. (CPNG).

Signal8 holds 12 ownership filings by Child Jason (1 Form 3, 11 Form 4), filed between Apr 3, 2025 and Sep 23, 2026. Those filings report 16 transactions, from Apr 1, 2025 to Sep 21, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Child Jason's filings is in CAMBRIDGE.

Recent filings by Child Jason

Sep 21, 2026: Open-market sale of ARM shares (Form 4, code S).
Aug 27, 2026: Open-market sale of ARM shares (Form 4, code S).
Jun 11, 2026: Grant or award of CPNG shares (Form 4, code A).
May 20, 2026: Open-market sale of ARM shares (Form 4, code S).
May 15, 2026: Option exercise of ARM shares (Form 4, code M).

Other insiders filing for ARM HOLDINGS PLC /UK (ARM)

Abbey William, Chief Commercial Officer
Haas Rene A., Chief Executive Officer
Bartels Laura Kathleen, Chief Accounting Officer
Sine Jeffrey, Director
Eaton Charlotte Claire, Chief People Officer
Collins Spencer, Chief Legal Officer

How to read Form 4 transaction codes