SEC CIK 1397266
Fust Matthew K
Reported ownership across 5 companies, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| JAZZview stock → | 58,948 | 2008-11-28 |
| RAREview stock → | 33,696 | 2026-05-14 |
| ATRAview stock → | 30,188 | 2026-06-09 |
| MGNXview stock → | 7,424 | 2019-02-06 |
| CRNXview stock → | 0 | 2026-09-01 |
Position History — CRNX
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — CRNX
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2026-09-01 | Disposition to issuer (derivative) | 2,092 | $83.09 | 0 |
| 2026-09-01 | Disposition to issuer | 5,925 | $85.00 | 0 |
| 2026-09-01 | Disposition to issuer | 22,836 | $85.00 | 5,925 |
| 2026-06-18 | Grant / award (derivative) | 9,730 | $0.00 | 9,730 |
| 2026-06-18 | Grant / award | 5,925 | $0.00 | 28,761 |
| 2025-09-26 | Option exercise (derivative) | 10,000 | $0.00 | 2,092 |
| 2025-09-26 | Option exercise | 10,000 | $1.91 | 38,836 |
| 2025-09-26 | Open-market sale | 16,000 | $44.75 | 22,836 |
| 2025-06-11 | Grant / award (derivative) | 10,350 | $0.00 | 10,350 |
| 2025-06-11 | Grant / award | 6,900 | $0.00 | 28,836 |
| 2024-06-07 | Grant / award (derivative) | 12,500 | $0.00 | 12,500 |
| 2024-06-07 | Grant / award | 3,400 | $0.00 | 21,936 |
| 2024-03-20 | Option exercise (derivative) | 17,500 | $0.00 | 0 |
| 2024-03-20 | Option exercise | 12,500 | $23.23 | 31,036 |
| 2024-03-20 | Option exercise | 17,500 | $18.29 | 36,036 |
| 2024-03-20 | Open-market sale | 17,500 | $45.50 | 18,536 |
| 2023-06-16 | Grant / award (derivative) | 17,500 | $0.00 | 17,500 |
| 2023-06-16 | Grant / award | 6,000 | $0.00 | 18,536 |
| 2022-07-13 | Option exercise (derivative) | 5,700 | $0.00 | 0 |
| 2022-07-13 | Open-market sale | 5,700 | $20.96 | 12,536 |
| 2022-07-13 | Option exercise | 5,700 | $1.45 | 18,236 |
| 2022-06-17 | Grant / award (derivative) | 17,500 | $0.00 | 17,500 |
| 2021-11-01 | Option exercise (derivative) | 8,954 | $0.00 | 12,092 |
| 2021-11-01 | Open-market sale | 8,954 | $25.50 | 12,536 |
| 2021-11-01 | Option exercise | 8,954 | $1.91 | 21,490 |
| 2021-09-08 | Option exercise (derivative) | 6,046 | $0.00 | 21,046 |
| 2021-09-08 | Option exercise | 6,046 | $1.91 | 18,582 |
| 2021-09-08 | Open-market sale | 6,046 | $25.50 | 12,536 |
| 2021-07-26 | Option exercise (derivative) | 5,000 | $0.00 | 27,092 |
| 2021-07-26 | Open-market sale | 5,000 | $19.59 | 12,536 |
| 2021-07-26 | Option exercise | 5,000 | $1.91 | 17,536 |
| 2021-07-19 | Option exercise (derivative) | 5,000 | $0.00 | 32,092 |
| 2021-07-19 | Option exercise | 5,000 | $1.91 | 17,536 |
| 2021-07-19 | Open-market sale | 5,000 | $19.50 | 12,536 |
| 2021-07-12 | Option exercise (derivative) | 5,000 | $0.00 | 37,092 |
| 2021-07-12 | Open-market sale | 5,000 | $20.71 | 12,536 |
| 2021-07-12 | Option exercise | 5,000 | $1.91 | 17,536 |
| 2021-06-22 | Grant / award (derivative) | 17,500 | $0.00 | 17,500 |
| 2020-06-19 | Grant / award (derivative) | 12,500 | $0.00 | 12,500 |
| 2019-12-16 | Option exercise (derivative) | 3,500 | $0.00 | 42,092 |
| 2019-12-16 | Open-market sale | 3,500 | $22.50 | 12,536 |
| 2019-12-16 | Option exercise | 3,500 | $1.91 | 16,036 |
| 2019-06-21 | Grant / award (derivative) | 12,500 | $0.00 | 12,500 |
| 2018-07-17 | — | — | — | 12,536 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.