SEC CIK 1303811
Kassberg Thomas Richard
Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| RAREview stock → | 265,238 | 2025-03-03 |
Position History — RARE
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — RARE
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2025-03-03 | Open-market sale | 6,028 | $42.10 | 265,238 |
| 2025-03-03 | Tax withholding | 508 | $42.92 | 264,730 |
| 2025-03-01 | Grant / award | 18,443 | $0.00 | 271,266 |
| 2024-03-11 | Open-market sale | 11,509 | $49.93 | 252,823 |
| 2024-03-01 | Grant / award (derivative) | 31,400 | $0.00 | 31,400 |
| 2024-03-01 | Grant / award | 957 | $0.00 | 265,617 |
| 2024-03-01 | Tax withholding | 274 | $53.69 | 265,343 |
| 2024-03-01 | Open-market sale | 1,011 | $53.76 | 264,332 |
| 2024-03-01 | Grant / award | 17,800 | $0.00 | 264,660 |
| 2023-10-23 | Option exercise (derivative) | 39,878 | $0.00 | 0 |
| 2023-10-23 | Option exercise | 39,878 | $6.86 | 286,738 |
| 2023-10-23 | Open-market sale | 39,878 | $32.78 | 246,860 |
| 2023-03-01 | Grant / award (derivative) | 39,400 | $0.00 | 39,400 |
| 2023-03-01 | Grant / award | 22,000 | $0.00 | 252,222 |
| 2023-03-01 | Open-market sale | 1,968 | $45.27 | 250,254 |
| 2023-03-01 | Disposition to issuer | 3,394 | $45.65 | 246,860 |
| 2023-03-01 | Grant / award | 2,663 | $0.00 | 230,222 |
| 2022-03-11 | Open-market sale | 10,281 | $67.01 | 227,559 |
| 2022-03-01 | Grant / award (derivative) | 24,900 | $0.00 | 24,900 |
| 2022-03-01 | Grant / award | 14,000 | $0.00 | 227,840 |
| 2022-03-01 | Open-market sale | 2,374 | $66.62 | 213,840 |
| 2021-10-14 | Open-market sale | 286 | $81.14 | 216,266 |
| 2021-09-30 | Option exercise (derivative) | 109,734 | $0.00 | 0 |
| 2021-09-30 | Option exercise | 109,734 | $0.31 | 216,552 |
| 2021-05-06 | Open-market sale | 363 | $113.69 | 106,818 |
| 2021-03-01 | Grant / award (derivative) | 11,000 | $0.00 | 11,000 |
| 2021-03-01 | Grant / award | 4,636 | $0.00 | 111,614 |
| 2021-03-01 | Open-market sale | 4,572 | $138.17 | 107,181 |
| 2021-03-01 | Grant / award | 5,500 | $0.00 | 106,978 |
| 2020-10-14 | Open-market sale | 262 | $87.98 | 101,478 |
| 2020-06-01 | Tax withholding | 348 | $69.38 | 101,740 |
| 2020-05-06 | Tax withholding | 248 | $66.26 | 101,675 |
| 2020-04-19 | Tax withholding | 248 | $58.57 | 101,923 |
| 2020-03-01 | Grant / award (derivative) | 20,000 | $0.00 | 20,000 |
| 2020-03-01 | Tax withholding | 2,067 | $56.08 | 102,171 |
| 2020-03-01 | Grant / award | 5,634 | $0.00 | 104,109 |
| 2020-03-01 | Grant / award | 6,800 | $0.00 | 98,475 |
| 2019-10-14 | Grant / award | 1,434 | $0.00 | 91,675 |
| 2019-06-01 | Tax withholding | 346 | $54.93 | 90,241 |
| 2019-05-21 | Tax withholding | 381 | $59.50 | 90,587 |
| 2019-05-06 | Grant / award | 1,434 | $0.00 | 90,968 |
| 2019-04-19 | Tax withholding | 248 | $64.43 | 89,226 |
| 2019-03-05 | Open-market sale | 832 | $65.52 | 89,474 |
| 2019-03-01 | Grant / award (derivative) | 21,500 | $0.00 | 21,500 |
| 2019-03-01 | Tax withholding | 806 | $67.55 | 89,499 |
| 2019-03-01 | Grant / award | 7,000 | $0.00 | 90,305 |
| 2019-03-01 | Grant / award (derivative) | 21,500 | $0.00 | 21,500 |
| 2019-03-01 | Grant / award | 7,000 | $0.00 | 90,306 |
| 2018-06-01 | Tax withholding | 346 | $73.73 | 83,114 |
| 2018-05-21 | Tax withholding | 381 | $64.79 | 83,460 |
| 2018-04-19 | Grant / award | 1,431 | $0.00 | 83,529 |
| 2018-03-01 | Grant / award (derivative) | 30,000 | $0.00 | 30,000 |
| 2018-03-01 | Tax withholding | 307 | $48.43 | 82,098 |
| 2018-03-01 | Grant / award | 6,000 | $0.00 | 82,405 |
| 2017-06-01 | Tax withholding | 376 | $56.61 | 76,228 |
| 2017-05-21 | Tax withholding | 414 | $57.47 | 76,604 |
| 2017-03-01 | Grant / award (derivative) | 25,000 | $0.00 | 25,000 |
| 2017-03-01 | Grant / award | 3,000 | $0.00 | 76,790 |
| 2016-06-01 | Grant / award (derivative) | 24,000 | $0.00 | 24,000 |
| 2016-06-01 | Grant / award | 4,000 | $0.00 | 73,790 |
| 2016-05-21 | Tax withholding | 414 | $64.01 | 69,790 |
| 2015-08-12 | Open-market sale | 3,334 | $109.70 | 70,204 |
| 2015-07-08 | Open-market sale | 3,334 | $102.12 | 73,538 |
| 2015-06-10 | Open-market sale | 3,334 | $88.19 | 76,872 |
| 2015-05-21 | Grant / award (derivative) | 26,300 | $0.00 | 26,300 |
| 2015-05-21 | Grant / award | 4,400 | — | 80,206 |
| 2015-05-13 | Open-market sale | 3,334 | $72.04 | 75,806 |
| 2015-04-08 | Open-market sale | 3,333 | $58.02 | 79,140 |
| 2015-03-11 | Open-market sale | 3,333 | $56.30 | 82,473 |
| 2015-02-11 | Open-market sale | 3,333 | $54.31 | 85,806 |
| 2015-01-14 | Open-market sale | 3,333 | $51.51 | 89,139 |
| 2014-12-10 | Open-market sale | 3,333 | $40.22 | 92,472 |
| 2014-11-12 | Open-market sale | 3,333 | $41.85 | 95,805 |
| 2014-10-08 | Open-market sale | 3,333 | $53.26 | 99,138 |
| 2014-09-10 | Open-market sale | 3,333 | $54.82 | 102,471 |
| 2014-09-03 | Open-market sale | 10,000 | $55.00 | 105,804 |
| 2014-09-02 | Open-market sale | 10,000 | $52.82 | 115,804 |
| 2014-02-05 | Conversion (derivative) | 98,595 | $0.00 | 0 |
| 2014-02-05 | Conversion | 31,454 | — | 125,804 |
| 2014-01-30 | Open-market buy | 1,500 | $21.00 | 94,350 |
| 2014-01-30 | — | — | — | 92,850 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.