Only open-market buys / sells (codes P/S) are a conviction signal; grants, option exercises, tax-withholding, and gifts are compensation mechanics, shown but greyed. The trailing 12-month tallies run to today but the store covers filings through 2026-06-30 only (SEC bulk data sets publish quarterly), so recent activity may be absent.
| Date | Insider | Role | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2018-05-24 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 20,000 | $37.11 | $742,200 |
| 2018-05-24 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 20,000 | $37.11 | $742,200 |
| 2018-05-23 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 20,000 | $36.54 | $730,800 |
| 2018-05-23 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 20,000 | $36.54 | $730,800 |
| 2018-05-21 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 10,000 | $36.93 | $369,300 |
| 2018-05-21 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 10,000 | $36.93 | $369,300 |
| 2018-05-18 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 30,000 | $36.23 | $1M |
| 2018-05-18 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 30,000 | $36.23 | $1M |
| 2018-05-17 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 10,000 | $36.70 | $367,000 |
| 2018-05-17 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 10,000 | $36.70 | $367,000 |
| 2018-05-16 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 10,000 | $36.86 | $368,600 |
| 2018-05-16 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 10,000 | $36.86 | $368,600 |
| 2018-05-15 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 6,500 | $35.86 | $233,090 |
| 2018-05-15 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 6,500 | $35.86 | $233,090 |
| 2018-05-14 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 10,000 | $36.96 | $369,600 |
| 2018-05-14 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 10,000 | $36.96 | $369,600 |
| 2018-05-11 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 10,000 | $36.08 | $360,800 |
| 2018-05-11 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 10,000 | $36.08 | $360,800 |
| 2018-05-10 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 10,000 | $35.98 | $359,800 |
| 2018-05-10 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 10,000 | $35.98 | $359,800 |
| 2018-05-09 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 50,000 | $35.16 | $2M |
| 2018-05-09 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 50,000 | $35.16 | $2M |
| 2018-05-08 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 50,000 | $35.51 | $2M |
| 2018-05-08 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 50,000 | $35.51 | $2M |
| 2018-05-01 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 32,715 | $31.76 | $1M |
| 2018-05-01 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 32,715 | $31.76 | $1M |
| 2018-04-30 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 96,225 | $30.60 | $3M |
| 2018-04-30 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 96,225 | $30.60 | $3M |
| 2017-06-15 | Wang Xiaochuan | Officer | +Buy | 15,000 | $45.15 | $677,250 |
| 2017-05-12 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 25,000 | $40.06 | $1M |
| 2016-12-08 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 8,000 | $36.03 | $288,240 |
| 2016-12-08 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 8,000 | $36.03 | $288,240 |
| 2016-12-07 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 8,000 | $35.16 | $281,280 |
| 2016-12-07 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 8,000 | $35.16 | $281,280 |
| 2016-12-06 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 8,000 | $33.65 | $269,200 |
| 2016-12-06 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 8,000 | $33.65 | $269,200 |
| 2016-12-05 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 8,000 | $33.55 | $268,400 |
| 2016-12-05 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 8,000 | $33.55 | $268,400 |
| 2016-12-02 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 8,000 | $33.02 | $264,160 |
| 2016-12-02 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 8,000 | $33.02 | $264,160 |
| 2016-12-01 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Buy | 8,000 | $34.18 | $273,440 |
| 2016-12-01 | PHOTON GROUP LTD | TenPercentOwner | +Buy | 8,000 | $3418.00 | $27M |
| 2016-01-12 | ROBERTS EDWARD B | Director | +Grant | 2,352 | — | — |
| 2016-01-12 | Deng John | Director | +Grant | 2,070 | — | — |
| 2016-01-12 | Qi Dave | Director | +Grant | 2,352 | — | — |
| 2016-01-12 | HUANG CHARLES | Director | +Grant | 2,070 | — | — |
| 2016-01-12 | Wang Shi | Director | +Grant | 2,070 | — | — |
| 2015-12-11 | ROBERTS EDWARD B | Director | −Sell | 700 | $48.52 | $33,964 |
| 2015-12-09 | ROBERTS EDWARD B | Director | −Sell | 700 | $49.58 | $34,706 |
| 2015-12-08 | ROBERTS EDWARD B | Director | −Sell | 10,337 | $49.54 | $512,095 |
| 2015-12-08 | ROBERTS EDWARD B | Director | −Sell | 3,600 | $49.81 | $179,316 |
| 2015-12-07 | ROBERTS EDWARD B | Director | −Sell | 5,300 | $50.09 | $265,477 |
| 2015-12-07 | ROBERTS EDWARD B | Director | −Sell | 23,408 | $49.84 | $1M |
| 2014-10-30 | ZHANG CHARLES | Director,Officer,TenPercentOwner | +Gift | 646,566 | — | — |
| 2014-10-30 | ZHANG CHARLES | Director,Officer,TenPercentOwner | −Gift | 646,566 | — | — |
| 2014-10-30 | PHOTON GROUP LTD | TenPercentOwner | +Gift | 646,566 | — | — |
| 2013-01-04 | ZHANG CHARLES | Director,Officer,TenPercentOwner | −Sell | 4,086 | $47.57 | $194,371 |
| 2012-12-28 | ZHANG CHARLES | Director,Officer,TenPercentOwner | −Sell | 80 | $45.53 | $3,642 |
| 2012-12-28 | ZHANG CHARLES | Director,Officer,TenPercentOwner | −Sell | 8,175 | $45.12 | $368,856 |
Source: the SEC bulk insider (Form 3/4/5) data sets — non-derivative transactions in the issuer's common stock, most recent first, covering filings through 2026-06-30. Insiders file within 2 business days of a transaction, but the bulk sets publish quarterly, so this store lags live filings; option/derivative lines are excluded. Codes: P buy · S sell · A grant · M/X/C exercise · F tax · G gift.
Model-derived estimate for research. See the Disclaimer.
