SEC CIK 1420822
Lanfear Dennis M
Reported ownership across 2 companies, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| CHRSview stock → | 1,048,235 | 2026-01-23 |
| INSMview stock → | 168,404 | 2010-06-09 |
Position History — CHRS
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — CHRS
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2026-05-29 | Grant / award (derivative) | 225,000 | — | 225,000 |
| 2026-05-29 | Grant / award (derivative) | 402,500 | — | 402,500 |
| 2026-05-29 | Grant / award (derivative) | 125,000 | — | 125,000 |
| 2026-05-29 | Grant / award (derivative) | 500,000 | — | 500,000 |
| 2026-05-29 | Grant / award (derivative) | 450,000 | — | 450,000 |
| 2026-05-29 | Grant / award (derivative) | 400,000 | — | 400,000 |
| 2026-05-29 | Grant / award (derivative) | 200,000 | — | 200,000 |
| 2026-05-29 | Disposition to issuer (derivative) | 200,000 | — | 0 |
| 2026-01-23 | Grant / award (derivative) | 750,000 | $0.00 | 750,000 |
| 2026-01-23 | Grant / award | 375,000 | $0.00 | 1,048,235 |
| 2026-01-20 | Tax withholding | 11,839 | $1.55 | 673,235 |
| 2025-05-07 | Grant / award (derivative) | 375,000 | $0.00 | 375,000 |
| 2025-01-20 | Tax withholding | 11,810 | $1.39 | 685,074 |
| 2025-01-10 | Grant / award (derivative) | 575,000 | $0.00 | 575,000 |
| 2025-01-04 | Tax withholding | 11,810 | $1.66 | 696,884 |
| 2024-07-22 | Grant / award (derivative) | 196,500 | $0.00 | 196,500 |
| 2024-01-20 | Tax withholding | 11,218 | $2.44 | 708,694 |
| 2024-01-05 | Grant / award (derivative) | 575,000 | $0.00 | 575,000 |
| 2024-01-04 | Tax withholding | 11,781 | $2.92 | 719,912 |
| 2023-11-22 | Option exercise (derivative) | 299,940 | $0.00 | 0 |
| 2023-11-22 | Option exercise | 258,940 | $1.42 | 954,793 |
| 2023-11-22 | Open-market sale | 223,100 | $2.02 | 731,693 |
| 2023-11-22 | Option exercise | 41,000 | $1.42 | 695,853 |
| 2023-06-13 | Grant / award (derivative) | 225,000 | $0.00 | 225,000 |
| 2023-01-20 | Grant / award | 86,250 | $0.00 | 654,853 |
| 2023-01-05 | Grant / award (derivative) | 402,500 | $0.00 | 402,500 |
| 2023-01-04 | Tax withholding | 10,905 | $9.87 | 568,603 |
| 2022-12-30 | Gift | 4,000 | $0.00 | 432,684 |
| 2022-01-04 | Grant / award (derivative) | 402,500 | $0.00 | 402,500 |
| 2022-01-04 | Grant / award | 86,250 | $0.00 | 579,508 |
| 2021-11-17 | Gift | 10,000 | $0.00 | 436,684 |
| 2021-06-08 | Option exercise (derivative) | 31,054 | $0.00 | 0 |
| 2021-06-08 | Option exercise | 31,054 | $0.42 | 524,312 |
| 2021-06-08 | Open-market sale | 31,054 | $13.56 | 493,258 |
| 2021-06-06 | Option exercise (derivative) | 300,000 | $0.00 | 31,054 |
| 2021-06-06 | Option exercise | 300,000 | $0.42 | 493,258 |
| 2021-02-01 | Grant / award (derivative) | 125,000 | $0.00 | 125,000 |
| 2021-01-23 | Grant / award (derivative) | 500,000 | $0.00 | 500,000 |
| 2020-07-01 | Option exercise (derivative) | 29,994 | $0.00 | 0 |
| 2020-07-01 | Option exercise | 29,994 | $0.01 | 193,258 |
| 2020-01-10 | Grant / award (derivative) | 500,000 | $0.00 | 500,000 |
| 2020-01-10 | Tax withholding | 21,516 | $17.73 | 163,264 |
| 2020-01-10 | Grant / award | 59,763 | $0.00 | 184,780 |
| 2019-11-21 | Open-market sale | 12,500 | $18.56 | 446,684 |
| 2019-11-20 | Open-market sale | 825,000 | $18.00 | 459,184 |
| 2019-05-30 | Open-market sale | 32,398 | $19.49 | 1,284,184 |
| 2019-01-11 | Grant / award (derivative) | 450,000 | $0.00 | 450,000 |
| 2019-01-11 | Grant / award | 50,265 | $0.00 | 142,884 |
| 2019-01-11 | Tax withholding | 17,867 | $12.37 | 125,017 |
| 2018-05-16 | Open-market sale | 20,984 | $16.26 | 1,316,582 |
| 2018-02-01 | Grant / award (derivative) | 400,000 | $0.00 | 400,000 |
| 2017-12-15 | Grant / award | 20,984 | $0.00 | 92,619 |
| 2017-08-06 | Grant / award (derivative) | 200,000 | $0.00 | 200,000 |
| 2016-09-21 | Open-market sale | 50 | $31.75 | 1,337,566 |
| 2016-09-20 | Open-market sale | 4,010 | $31.75 | 1,337,616 |
| 2016-09-16 | Open-market sale | 2,900 | $31.79 | 1,341,626 |
| 2016-05-11 | Grant / award (derivative) | 323,889 | $0.00 | 323,889 |
| 2015-11-30 | Open-market sale | 400 | $31.75 | 1,344,526 |
| 2015-05-21 | Grant / award (derivative) | 35,000 | $0.00 | 35,000 |
| 2015-04-02 | Grant / award (derivative) | 250,000 | $0.00 | 250,000 |
| 2015-04-02 | Grant / award (derivative) | 150,000 | $0.00 | 150,000 |
| 2015-03-18 | J | 13 | $0.00 | 86,965 |
| 2015-03-18 | J | 2,206 | $0.00 | 1,344,926 |
| 2015-03-18 | J | 2,084 | $0.00 | 71,635 |
| 2015-03-10 | J | 828 | $0.00 | 69,551 |
| 2015-03-10 | J | 799 | $0.00 | 1,342,720 |
| 2015-03-10 | J | 4 | $0.00 | 86,952 |
| 2014-12-23 | Gift | 20,000 | $0.00 | 1,341,921 |
| 2014-11-12 | Conversion (derivative) | 5,286 | — | 0 |
| 2014-11-12 | Conversion (derivative) | 60,135 | — | 0 |
| 2014-11-12 | Conversion (derivative) | 17,734 | — | 0 |
| 2014-11-12 | Option exercise (out-of-money) (derivative) | 3,225 | $0.02 | 17,734 |
| 2014-11-12 | Option exercise (out-of-money) (derivative) | 3,225 | $0.00 | 0 |
| 2014-11-12 | Option exercise (out-of-money) (derivative) | 19,976 | $1.25 | 60,135 |
| 2014-11-12 | Option exercise (out-of-money) (derivative) | 19,976 | $0.00 | 0 |
| 2014-11-12 | Conversion | 3,193 | — | 1,361,921 |
| 2014-11-12 | Conversion | 60,135 | — | 60,135 |
| 2014-11-12 | Conversion | 21,527 | — | 81,662 |
| 2014-11-12 | Conversion | 5,286 | — | 86,948 |
| 2014-11-12 | Conversion | 17,734 | — | 68,723 |
| 2014-11-06 | — | — | — | 1,358,728 |
| 2014-11-06 | — | — | — | 50,989 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.