Insider · CIK 0001533913
Jason Child
Files at CPNG (Coupang, Inc.), ARM (ARM HOLDINGS PLC /UK). First filing Mar 27, 2026, latest Sep 23, 2026.
In brief
Jason Child files SEC Form 4 as CFO and director at ARM (ARM HOLDINGS PLC /UK), and also at CPNG (Coupang, Inc.). Since Mar 27, 2026, Jason Child has reported 0 open-market buys worth $0 and 5 open-market sells worth $20M, the latest filed on Sep 23, 2026.
A track record needs three past buys with six months of prices behind them; Jason Child has 0, so none is measured yet.
The newest scored trade: sold $3.1M of ARM on Sep 21, 2026, filed Sep 23, 2026, scored 27 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 5 sells worth $20M.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
ARM: ARM HOLDINGS PLC /UK
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 27Weak | ARM HOLDINGS PLC /UK | $3.1M 10,400 shares | -6% | - | |
| 27Weak | ARM HOLDINGS PLC /UK | $2.7M 10,400 shares | -6% | +144% from low-42% from high | |
| 47Moderate | ARM HOLDINGS PLC /UK | $7.2M 31,920 shares | -15% | +146% from low0% from high | |
| 47Moderate | ARM HOLDINGS PLC /UK | $3.8M 21,280 shares | -12% | +95% from low0% from high | |
| 40Moderate | ARM HOLDINGS PLC /UK | $3.2M 21,280 shares | -11% | +83% from low-12% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Sep 21, 2026 | ARM ARM HOLDINGS PLC /UK | 10,400 0.00% of outstanding | $3.1M | Sep 21, 2026 | $2.7M |
| Aug 27, 2026 | ARM ARM HOLDINGS PLC /UK | 10,400 0.00% of outstanding | $2.7M | Aug 27, 2026 | none |
| May 20, 2026 | ARM ARM HOLDINGS PLC /UK | 31,920 0.00% of outstanding | $7.2M | May 20, 2026 | $7.0M |
| Apr 22, 2026 | ARM ARM HOLDINGS PLC /UK | 21,280 0.00% of outstanding | $3.8M | Apr 22, 2026 | $4.5M |
| Mar 25, 2026 | ARM ARM HOLDINGS PLC /UK | 21,280 0.00% of outstanding | $3.2M | Mar 25, 2026 | $1.4M |
| Feb 18, 2026 | ARM ARM HOLDINGS PLC /UK | 10,640 0.00% of outstanding | $1.4M | Feb 18, 2026 | $1.5M |
| Nov 19, 2025 | ARM ARM HOLDINGS PLC /UK | 10,640 0.00% of outstanding | $1.5M | Nov 19, 2025 | $4.9M |
| Oct 14, 2025 | ARM ARM HOLDINGS PLC /UK | 10,640 0.00% of outstanding | $1.9M | Oct 14, 2025 | $3.0M |
| Sep 10, 2025 | ARM ARM HOLDINGS PLC /UK | 10,640 0.00% of outstanding | $1.5M | Sep 10, 2025 | $1.5M |
| Sep 5, 2025 | ARM ARM HOLDINGS PLC /UK | 10,640 0.00% of outstanding | $1.5M | Sep 5, 2025 | none |
| May 22, 2025 | ARM ARM HOLDINGS PLC /UK | 20,160 0.00% of outstanding | $2.6M | May 22, 2025 | none |
| Feb 20, 2025 | ARM ARM HOLDINGS PLC /UK | 9,220 0.00% of outstanding | $1.4M | Feb 20, 2025 | $4.5M |
| Jan 22, 2025 | ARM ARM HOLDINGS PLC /UK | 10,080 0.00% of outstanding | $1.8M | Jan 22, 2025 | $5.7M |
| Nov 21, 2024 | ARM ARM HOLDINGS PLC /UK | 20,160 0.00% of outstanding | $2.8M | Nov 21, 2024 | $3.0M |
| Nov 8, 2024 | ARM ARM HOLDINGS PLC /UK | 20,160 0.00% of outstanding | $3.0M | Nov 8, 2024 | none |
Transactions
Every row this insider has filed, 20 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 21, 2026 | ARM ARM HOLDINGS PLC /UK | SOpen-market sale Ordinary Shares10b5-1 | -10,400 | $300.00 | $3.1M | 153,442 | 21 d ago |
| Aug 27, 2026 | ARM ARM HOLDINGS PLC /UK | SOpen-market sale Ordinary Shares10b5-1 | -10,400 | $255.33 | $2.7M | 163,832 | 44 d ago |
| Jun 11, 2026 | CPNG Coupang, Inc. | AGrant or award Class A Common Stock | +21,304 | $0.00 | $0 | 98,844 | Jun 12, 2026 |
| May 20, 2026 | ARM ARM HOLDINGS PLC /UK | SOpen-market sale Ordinary Shares10b5-1 | -31,920 | $226.54 | $7.2M | 174,232 | May 21, 2026 |
| May 15, 2026 | ARM ARM HOLDINGS PLC /UK | AGrant or award Ordinary Shares | +11,909 | - | - | 165,335 | May 19, 2026 |
| May 15, 2026 | ARM ARM HOLDINGS PLC /UK | MOption exercise Ordinary Shares | +4,670 | - | - | 170,005 | May 19, 2026 |
| May 15, 2026 | ARM ARM HOLDINGS PLC /UK | AGrant or award Ordinary Shares | +11,849 | - | - | 181,854 | May 19, 2026 |
| May 15, 2026 | ARM ARM HOLDINGS PLC /UK | MOption exercise Ordinary Shares | +4,647 | - | - | 186,501 | May 19, 2026 |
| May 15, 2026 | ARM ARM HOLDINGS PLC /UK | AGrant or award Ordinary Shares | +57,601 | - | - | 244,102 | May 19, 2026 |
| May 15, 2026 | ARM ARM HOLDINGS PLC /UK | FTax withholding Ordinary Shares | -37,950 | $209.16 | $7.9M | 206,152 | May 19, 2026 |
| May 15, 2026 | ARM ARM HOLDINGS PLC /UK | AGrant or award Restricted Stock Unitsderivative | +14,842 | $0.00 | $0 | 149,268 | May 19, 2026 |
| May 15, 2026 | ARM ARM HOLDINGS PLC /UK | MOption exercise Restricted Stock Unitsderivative | -4,670 | $0.00 | $0 | 144,598 | May 19, 2026 |
| May 15, 2026 | ARM ARM HOLDINGS PLC /UK | MOption exercise Restricted Stock Unitsderivative | -4,647 | $0.00 | $0 | 139,951 | May 19, 2026 |
| Apr 22, 2026 | ARM ARM HOLDINGS PLC /UK | SOpen-market sale Ordinary Shares10b5-1 | -21,280 | $180.00 | $3.8M | 153,426 | Apr 23, 2026 |
| Mar 25, 2026 | ARM ARM HOLDINGS PLC /UK | SOpen-market sale Ordinary Shares10b5-1 | -21,280 | $148.37 | $3.2M | 174,706 | Mar 27, 2026 |
| Mar 18, 2026 | CPNG Coupang, Inc. | AGrant or award Class A Common Stock | +1,147 | $0.00 | $0 | 77,540 | Mar 20, 2026 |
| Jun 12, 2025 | CPNG Coupang, Inc. | AGrant or award Class A Common Stock | +353 | $0.00 | $0 | 76,393 | Jan 2, 2026 |
| Jun 12, 2025 | CPNG Coupang, Inc. | AGrant or award Class A Common Stock | +11,480 | $0.00 | $0 | 76,040 | Jun 16, 2025 |
| Apr 1, 2025 | CPNG Coupang, Inc. | AGrant or award Class A Common Stock | +88 | $0.00 | $0 | 64,560 | Apr 3, 2025 |
| Jun 13, 2024 | CPNG Coupang, Inc. | AGrant or award Class A Common Stock | +14,976 | $0.00 | $0 | 64,472 | Jun 17, 2024 |
Questions about Jason Child
Answered from the filings on this page, as of the latest one.
Is Jason Child buying or selling?
In the last 12 months Jason Child reported 0 open-market buys worth $0 and 5 open-market sells worth $20M on SEC Form 4; the latest was sold $3.1M of ARM on Sep 21, 2026. Grants, option exercises and tax withholding are not counted.
How did Jason Child's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Jason Child has 0.
Where does Jason Child file Form 4?
Jason Child has filed Form 4 at ARM (ARM HOLDINGS PLC /UK) as Chief Financial Officer; CPNG (Coupang, Inc.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.