Chiyue Cheung is COO at NEOPHOTONICS CORP (NPTN). They have made 25 open-market trades across 1 company since 2012, most recently 2022-07-30.
CIK 0001489294
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 25 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| NPTN | 2,666 | $43K |
Shares reported on the most recent Form 4, priced at the 2022-08-02 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| NPTN | SELL | 2021-11-04 | 2021-11-08 | $15.04 | $1.4M | -2.5% | -2.1% | -2.5% |
| NPTN | SELL | 2021-08-02 | 2021-08-03 | $9.41 | $119K | -14.3% | -1.9% | +4.2% |
| NPTN | SELL | 2021-07-02 | 2021-07-06 | $10.12 | $263K | -13.3% | -7.3% | -14.9% |
| NPTN | SELL | 2021-06-07 | 2021-06-08 | $10.52 | $151K | -7.1% | -13.6% | -9.5% |
| NPTN | SELL | 2021-04-14 | 2021-04-15 | $11.77 | $441K | +4.5% | -20.0% | -20.4% |
| NPTN | SELL | 2021-04-12 | 2021-04-13 | $11.73 | $135K | +3.5% | -23.2% | -17.3% |
| NPTN | SELL | 2021-03-26 | 2021-03-26 | $11.76 | $262K | +1.0% | +2.6% | -9.0% |
| NPTN | SELL | 2021-02-11 | 2021-02-16 | $12.57 | $163K | -28.9% | -5.0% | -31.0% |
| NPTN | SELL | 2021-01-26 | 2021-01-26 | $11.82 | $230K | +3.2% | +2.4% | +6.6% |
| NPTN | SELL | 2020-08-03 | 2020-08-04 | $9.55 | $107K | -11.0% | -28.5% | -27.8% |
| NPTN | SELL | 2020-07-31 | 2020-08-03 | $8.87 | $201K | -21.3% | -27.4% | -32.9% |
| NPTN | SELL | 2020-06-05 | 2020-06-08 | $9.69 | $105K | -8.4% | -12.5% | -36.1% |
| NPTN | SELL · 10b5-1 | 2020-05-12 | 2020-05-13 | $9.80 | $49K | -3.5% | +3.4% | -9.3% |
| NPTN | SELL | 2020-05-05 | 2020-05-07 | $8.80 | $79K | -9.8% | +14.4% | +0.8% |
| NPTN | SELL | 2019-12-20 | 2019-12-23 | $8.80 | $106K | -0.7% | +1.4% | -36.1% |
| NPTN | SELL · 10b5-1 | 2019-11-01 | 2019-11-04 | $7.80 | $47K | +6.4% | -3.6% | -6.0% |
| NPTN | SELL | 2019-05-13 | 2019-05-14 | $5.79 | $69K | -31.0% | -25.8% | +9.4% |
| NPTN | SELL · 10b5-1 | 2018-09-10 | 2018-09-12 | $8.11 | $41K | -2.7% | -5.6% | -17.4% |
| NPTN | SELL | 2017-07-03 | 2017-07-06 | $7.66 | $77K | +5.7% | -13.3% | -22.8% |
| NPTN | SELL | 2016-08-15 | 2016-08-16 | $14.80 | $259K | +0.7% | +21.9% | -17.8% |
| NPTN | SELL | 2016-08-05 | 2016-08-08 | $13.80 | $207K | +24.8% | +35.7% | -4.6% |
| NPTN | SELL | 2016-07-25 | 2016-07-26 | $12.82 | $231K | +2.2% | +11.6% | +15.7% |
| NPTN | SELL | 2016-05-02 | 2016-05-04 | $11.86 | $178K | -8.8% | -16.4% | +8.4% |
| NPTN | SELL | 2016-05-02 | 2016-05-04 | $11.86 | $237K | -8.8% | -16.4% | +8.4% |
| NPTN | SELL | 2016-03-09 | 2016-03-10 | $11.08 | $277K | +11.1% | +17.1% | -24.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.