SEC CIK 1240718
TANG STEPHEN S PHD
Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| OSURview stock → | 247,067 | 2022-02-01 |
Position History — OSUR
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — OSUR
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2022-02-01 | Tax withholding | 8,590 | $8.86 | 247,067 |
| 2022-02-01 | Tax withholding | 4,544 | $8.86 | 255,657 |
| 2022-02-01 | Tax withholding | 10,225 | $8.86 | 349,793 |
| 2022-02-01 | Tax withholding | 6,962 | $8.86 | 240,105 |
| 2022-02-01 | Grant / award | 94,234 | $8.86 | 334,339 |
| 2022-02-01 | Grant / award | 25,679 | $8.86 | 360,018 |
| 2021-02-01 | Grant / award | 73,342 | $15.55 | 260,201 |
| 2021-02-01 | Tax withholding | 4,836 | $15.55 | 194,927 |
| 2021-02-01 | Tax withholding | 8,068 | $15.55 | 186,859 |
| 2020-02-01 | Grant / award | 84,997 | $7.17 | 199,763 |
| 2020-02-01 | Tax withholding | 5,194 | $7.17 | 114,766 |
| 2019-05-14 | Open-market buy | 1,000 | $8.56 | 119,960 |
| 2019-04-01 | Option exercise (derivative) | 16,667 | $0.00 | 0 |
| 2019-04-01 | Open-market sale | 16,667 | $11.10 | 118,960 |
| 2019-04-01 | Option exercise | 16,667 | $8.33 | 135,627 |
| 2019-02-01 | Grant / award | 47,872 | $0.00 | 118,960 |
| 2018-05-14 | Tax withholding | 2,444 | $15.98 | 71,088 |
| 2018-04-01 | Grant / award | 37,116 | — | 73,532 |
| 2018-02-15 | Option exercise (derivative) | 23,333 | $0.00 | 16,667 |
| 2018-02-15 | Open-market sale | 23,333 | $17.97 | 36,416 |
| 2018-02-15 | Option exercise | 23,333 | $8.33 | 59,749 |
| 2017-05-16 | Grant / award | 7,952 | — | 36,416 |
| 2017-05-15 | Tax withholding | 3,284 | $15.13 | 28,464 |
| 2017-03-21 | Open-market sale | 220 | $12.00 | 31,748 |
| 2017-03-02 | Open-market sale | 6,100 | $12.02 | 31,968 |
| 2017-02-15 | Option exercise (derivative) | 40,000 | $0.00 | 0 |
| 2017-02-15 | Open-market sale | 40,000 | $11.04 | 38,068 |
| 2017-02-15 | Option exercise | 40,000 | $8.21 | 78,068 |
| 2017-02-09 | Open-market sale | 12,641 | $10.23 | 38,068 |
| 2016-11-14 | Grant / award (derivative) | 40,000 | — | 40,000 |
| 2016-05-17 | Grant / award | 11,700 | — | 50,709 |
| 2016-05-10 | H | 4,177 | $6.84 | 39,009 |
| 2015-05-12 | Grant / award | 14,883 | — | 43,186 |
| 2015-05-11 | Tax withholding | 3,645 | $5.53 | 28,303 |
| 2014-05-22 | Grant / award | 12,987 | — | 31,948 |
| 2014-05-13 | Tax withholding | 4,913 | $6.52 | 18,961 |
| 2013-05-15 | Tax withholding | 2,485 | $4.50 | 23,874 |
| 2013-05-14 | Grant / award | 17,505 | — | 26,359 |
| 2012-02-01 | Grant / award | 8,854 | — | 8,854 |
| 2011-04-06 | Grant / award (derivative) | 40,000 | — | 40,000 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.