Insider · CIK 0002042355
Sung Yoon
Files at KEYS (Keysight Technologies, Inc.). First filing Jan 2, 2026, latest Jan 2, 2026.
In brief
Sung Yoon files SEC Form 4 as officer at KEYS (Keysight Technologies, Inc.). Since Jan 2, 2026, Sung Yoon has reported 0 open-market buys worth $0 and 1 open-market sell worth $184k, the latest filed on Jan 2, 2026.
A track record needs three past buys with six months of prices behind them; Sung Yoon has 0, so none is measured yet.
The newest scored trade: sold $184k of KEYS on Dec 30, 2025, filed Jan 2, 2026, scored 35 (weak). In the last 12 months: 0 buys worth $0 and 1 sell worth $184k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
KEYS: Keysight Technologies, Inc.
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 |
|---|---|---|---|---|---|
| 35Weak | Keysight Technologies, Inc. | $184k 889 shares | -5% | +62% from low-4% 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 |
|---|---|---|---|---|---|
| Dec 30, 2025 | KEYS Keysight Technologies, Inc. | 889 0.00% of outstanding | $184k | Dec 30, 2025 | none |
Transactions
Every row this insider has filed, 18 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Dec 30, 2025 | KEYS Keysight Technologies, Inc. | SOpen-market sale Common Stock | -889 | $206.66 | $184k | 16,953 | Jan 2, 2026 |
| Dec 30, 2025 | KEYS Keysight Technologies, Inc. | GGift Common Stock | -500 | $0.00 | $0 | 16,453 | Jan 2, 2026 |
| Dec 11, 2025 | KEYS Keysight Technologies, Inc. | FTax withholding Common Stock | -152 | $201.40 | $31k | 17,842 | Dec 15, 2025 |
| Nov 19, 2025 | KEYS Keysight Technologies, Inc. | AGrant or award Common Stock | +507 | $0.00 | $0 | 11,774 | Nov 21, 2025 |
| Nov 19, 2025 | KEYS Keysight Technologies, Inc. | FTax withholding Common Stock | -24 | $174.61 | $4,191 | 11,750 | Nov 21, 2025 |
| Nov 19, 2025 | KEYS Keysight Technologies, Inc. | AGrant or award Common Stock | +6,429 | $0.00 | $0 | 18,179 | Nov 21, 2025 |
| Nov 20, 2025 | KEYS Keysight Technologies, Inc. | FTax withholding Common Stock | -185 | $169.67 | $31k | 17,994 | Nov 21, 2025 |
| Nov 14, 2025 | KEYS Keysight Technologies, Inc. | FTax withholding Common Stock | -65 | $179.06 | $12k | 11,342 | Nov 18, 2025 |
| Nov 14, 2025 | KEYS Keysight Technologies, Inc. | FTax withholding Common Stock | -37 | $179.06 | $6,625 | 11,305 | Nov 18, 2025 |
| Nov 17, 2025 | KEYS Keysight Technologies, Inc. | FTax withholding Common Stock | -38 | $175.51 | $6,669 | 11,267 | Nov 18, 2025 |
| Dec 10, 2024 | KEYS Keysight Technologies, Inc. | FTax withholding Common Stock | -81 | $172.26 | $14k | 11,242 | Dec 12, 2024 |
| Nov 24, 2024 | KEYS Keysight Technologies, Inc. | FTax withholding Common Stock | -46 | $170.28 | $7,833 | 11,323 | Nov 26, 2024 |
| Nov 20, 2024 | KEYS Keysight Technologies, Inc. | AGrant or award Common Stock | +584 | $0.00 | $0 | 7,965 | Nov 22, 2024 |
| Nov 20, 2024 | KEYS Keysight Technologies, Inc. | FTax withholding Common Stock | -28 | $165.48 | $4,633 | 7,937 | Nov 22, 2024 |
| Nov 20, 2024 | KEYS Keysight Technologies, Inc. | AGrant or award Common Stock | +3,432 | $0.00 | $0 | 11,369 | Nov 22, 2024 |
| Nov 15, 2024 | KEYS Keysight Technologies, Inc. | FTax withholding Common Stock | -65 | $149.37 | $9,709 | 7,456 | Nov 19, 2024 |
| Nov 16, 2024 | KEYS Keysight Technologies, Inc. | FTax withholding Common Stock | -37 | $149.37 | $5,527 | 7,419 | Nov 19, 2024 |
| Nov 17, 2024 | KEYS Keysight Technologies, Inc. | FTax withholding Common Stock | -38 | $149.37 | $5,676 | 7,381 | Nov 19, 2024 |
Questions about Sung Yoon
Answered from the filings on this page, as of the latest one.
Is Sung Yoon buying or selling?
In the last 12 months Sung Yoon reported 0 open-market buys worth $0 and 1 open-market sell worth $184k on SEC Form 4; the latest was sold $184k of KEYS on Dec 30, 2025. Grants, option exercises and tax withholding are not counted.
How did Sung Yoon's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Sung Yoon has 0.
Where does Sung Yoon file Form 4?
Sung Yoon has filed Form 4 at KEYS (Keysight Technologies, Inc.) as SVP. 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.