SEC CIK 1486672
Myszkowski Kenneth Allen
Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| ARWRview stock → | 465,433 | 2025-01-07 |
Position History — ARWR
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — ARWR
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2025-01-07 | Open-market sale | 8,000 | $19.70 | 465,433 |
| 2025-01-07 | Open-market sale | 10,000 | $19.69 | 455,433 |
| 2025-01-06 | Open-market sale | 9,402 | $20.10 | 473,433 |
| 2025-01-06 | Open-market sale | 17,765 | $19.68 | 482,835 |
| 2025-01-04 | Grant / award | 100,000 | $0.00 | 500,600 |
| 2024-03-06 | Open-market sale | 40,000 | $35.19 | 400,600 |
| 2024-01-05 | Open-market sale | 1,400 | $34.04 | 455,304 |
| 2024-01-05 | Open-market sale | 8,904 | $35.65 | 440,600 |
| 2024-01-05 | Open-market sale | 5,800 | $34.97 | 449,504 |
| 2024-01-04 | Grant / award | 75,000 | $0.00 | 456,704 |
| 2023-06-27 | Open-market sale | 15,000 | $36.20 | 381,704 |
| 2023-01-04 | Grant / award | 60,000 | $0.00 | 396,704 |
| 2022-12-29 | Open-market sale | 30,625 | $40.00 | 336,704 |
| 2022-01-05 | Open-market sale | 16,528 | $62.00 | 471,569 |
| 2022-01-05 | Open-market sale | 3,778 | $63.17 | 467,791 |
| 2022-01-05 | Open-market sale | 3,786 | $63.95 | 464,005 |
| 2022-01-05 | Open-market sale | 15,908 | $60.50 | 488,097 |
| 2022-01-01 | Grant / award | 60,000 | $0.00 | 504,005 |
| 2021-01-12 | Open-market sale | 1,441 | $81.00 | 444,005 |
| 2021-01-11 | Open-market sale | 11,597 | $81.02 | 445,446 |
| 2021-01-06 | Open-market sale | 25,166 | $72.63 | 457,043 |
| 2021-01-06 | Open-market sale | 1,100 | $70.75 | 486,568 |
| 2021-01-06 | Open-market sale | 4,359 | $71.77 | 482,209 |
| 2021-01-01 | Grant / award | 60,000 | $0.00 | 487,668 |
| 2020-11-09 | Option exercise (derivative) | 43,505 | $0.00 | 0 |
| 2020-11-09 | Open-market sale | 25,840 | $69.04 | 445,333 |
| 2020-11-09 | Open-market sale | 17,665 | $69.86 | 427,668 |
| 2020-11-09 | Option exercise | 43,505 | $14.54 | 471,173 |
| 2020-10-20 | Option exercise (derivative) | 29,166 | $0.00 | 43,505 |
| 2020-10-20 | Open-market sale | 29,166 | $54.04 | 427,668 |
| 2020-10-20 | Option exercise | 29,166 | $6.15 | 456,834 |
| 2020-02-25 | Option exercise (derivative) | 10,834 | $0.00 | 72,671 |
| 2020-02-25 | Option exercise (derivative) | 6,495 | $0.00 | 95,621 |
| 2020-02-25 | Option exercise (derivative) | 12,116 | $0.00 | 83,505 |
| 2020-02-25 | Option exercise (derivative) | 2,000 | $0.00 | 102,116 |
| 2020-02-25 | Option exercise (derivative) | 12,000 | $0.00 | 104,116 |
| 2020-02-25 | Option exercise | 2,000 | $5.19 | 398,223 |
| 2020-02-25 | Option exercise | 12,000 | $9.90 | 396,223 |
| 2020-02-25 | Option exercise | 10,834 | $6.15 | 427,668 |
| 2020-02-25 | Option exercise | 12,116 | $7.75 | 416,834 |
| 2020-02-25 | Option exercise | 6,495 | $14.54 | 404,718 |
| 2020-01-21 | Option exercise (derivative) | 33,351 | $0.00 | 116,116 |
| 2020-01-21 | Open-market sale | 10,680 | $51.11 | 387,673 |
| 2020-01-21 | Open-market sale | 2,800 | $49.98 | 398,353 |
| 2020-01-21 | Open-market sale | 10,554 | $49.07 | 401,153 |
| 2020-01-21 | Open-market sale | 3,450 | $52.13 | 384,223 |
| 2020-01-21 | Open-market sale | 6,397 | $47.07 | 418,139 |
| 2020-01-21 | Option exercise | 33,351 | $5.19 | 424,536 |
| 2020-01-21 | Open-market sale | 6,432 | $47.93 | 411,707 |
| 2020-01-06 | Open-market sale | 11,907 | $60.40 | 391,685 |
| 2020-01-06 | Open-market sale | 500 | $60.95 | 391,185 |
| 2020-01-06 | Open-market sale | 7,593 | $59.60 | 403,592 |
| 2020-01-01 | Grant / award | 85,000 | $0.00 | 411,185 |
| 2019-11-05 | Option exercise (derivative) | 12,649 | $0.00 | 149,467 |
| 2019-11-05 | Option exercise | 12,649 | $5.19 | 326,185 |
| 2019-11-01 | Option exercise (derivative) | 37,884 | $0.00 | 162,116 |
| 2019-11-01 | Option exercise | 37,884 | $7.75 | 351,420 |
| 2019-11-01 | Open-market sale | 21,264 | $40.56 | 330,156 |
| 2019-11-01 | Open-market sale | 16,620 | $41.21 | 313,536 |
| 2019-05-31 | Option exercise (derivative) | 20,000 | $0.00 | 200,000 |
| 2019-05-31 | Option exercise (derivative) | 15,000 | $0.00 | 220,000 |
| 2019-05-31 | Option exercise | 15,000 | $4.60 | 293,536 |
| 2019-05-31 | Option exercise | 20,000 | $5.19 | 313,536 |
| 2019-05-21 | Open-market sale | 27,071 | $22.00 | 278,536 |
| 2019-02-19 | Option exercise (derivative) | 8,000 | $0.00 | 235,000 |
| 2019-02-19 | Option exercise | 8,000 | $5.20 | 313,607 |
| 2019-02-19 | Open-market sale | 8,000 | $18.00 | 305,607 |
| 2019-01-17 | Open-market sale | 81,875 | $14.55 | 305,607 |
| 2019-01-02 | Open-market sale | 8,333 | $11.98 | 387,482 |
| 2019-01-01 | Grant / award | 85,000 | $0.00 | 395,815 |
| 2018-09-06 | Option exercise (derivative) | 25,000 | $0.00 | 263,000 |
| 2018-09-06 | Option exercise (derivative) | 20,000 | $0.00 | 243,000 |
| 2018-09-06 | Option exercise | 20,000 | $4.75 | 355,815 |
| 2018-09-06 | Open-market sale | 25,000 | $18.00 | 330,815 |
| 2018-09-06 | Option exercise | 25,000 | $2.62 | 335,815 |
| 2018-09-06 | Open-market sale | 20,000 | $21.01 | 310,815 |
| 2018-06-19 | Option exercise (derivative) | 20,000 | $0.00 | 288,000 |
| 2018-06-19 | Open-market sale | 20,000 | $14.01 | 310,815 |
| 2018-06-19 | Option exercise | 20,000 | $2.01 | 330,815 |
| 2018-05-31 | Option exercise (derivative) | 12,600 | $0.00 | 308,000 |
| 2018-05-31 | Open-market sale | 12,600 | $11.00 | 310,815 |
| 2018-05-31 | Option exercise | 12,600 | $2.01 | 323,415 |
| 2018-05-30 | Option exercise (derivative) | 1,400 | $0.00 | 320,600 |
| 2018-05-30 | Open-market sale | 1,400 | $11.00 | 310,815 |
| 2018-05-30 | Option exercise | 1,400 | $2.01 | 312,215 |
| 2018-03-27 | Option exercise (derivative) | 20,000 | $0.00 | 322,000 |
| 2018-03-27 | Open-market sale | 20,000 | $8.00 | 310,815 |
| 2018-03-27 | Option exercise | 20,000 | $2.01 | 330,815 |
| 2018-03-05 | Tax withholding | 8,208 | $6.66 | 310,815 |
| 2018-01-01 | Grant / award | 75,000 | $0.00 | 319,023 |
| 2017-01-01 | Grant / award | 145,000 | $0.00 | 260,689 |
| 2016-08-23 | Option exercise (derivative) | 6,900 | $0.00 | 342,000 |
| 2016-08-23 | Open-market sale | 6,900 | $8.00 | 115,689 |
| 2016-08-23 | Option exercise | 6,900 | $2.01 | 122,589 |
| 2016-08-23 | Option exercise (derivative) | 6,900 | $0.00 | 342,000 |
| 2016-08-23 | Option exercise | 6,900 | $2.01 | 122,589 |
| 2016-08-23 | Open-market sale | 6,900 | $8.00 | 115,689 |
| 2016-08-22 | Option exercise (derivative) | 13,100 | $0.00 | 348,900 |
| 2016-08-22 | Open-market sale | 13,100 | $8.00 | 115,689 |
| 2016-08-22 | Option exercise | 13,100 | $2.01 | 128,789 |
| 2016-08-22 | Option exercise (derivative) | 13,100 | $0.00 | 348,900 |
| 2016-08-22 | Option exercise | 13,100 | $2.01 | 128,789 |
| 2016-08-22 | Open-market sale | 13,100 | $8.00 | 115,689 |
| 2016-03-04 | Tax withholding | 6,263 | $4.33 | 115,689 |
| 2016-02-06 | Tax withholding | 13,048 | $3.46 | 121,952 |
| 2016-01-01 | Grant / award (derivative) | 40,000 | $0.00 | 362,000 |
| 2016-01-01 | Grant / award | 50,000 | $0.00 | 135,000 |
| 2015-12-30 | Open-market sale | 23,347 | $6.13 | 85,000 |
| 2015-12-30 | Tax withholding | 13,153 | $6.13 | 108,347 |
| 2015-03-06 | Grant / award (derivative) | 50,000 | $0.00 | 322,000 |
| 2015-03-04 | Grant / award | 50,000 | $0.00 | 121,500 |
| 2014-08-15 | Option exercise (derivative) | 25,000 | $0.00 | 272,000 |
| 2014-08-15 | Option exercise (derivative) | 15,000 | $0.00 | 297,000 |
| 2014-08-15 | Open-market sale | 40,000 | $14.02 | 71,500 |
| 2014-08-15 | Option exercise | 25,000 | $7.00 | 111,500 |
| 2014-08-15 | Option exercise | 15,000 | $5.19 | 86,500 |
| 2014-02-12 | Option exercise (derivative) | 16,000 | $0.00 | 312,000 |
| 2014-02-12 | Option exercise | 16,000 | $2.01 | 87,500 |
| 2014-02-12 | Open-market sale | 16,000 | $18.77 | 71,500 |
| 2014-02-06 | Grant / award (derivative) | 50,000 | $0.00 | 328,000 |
| 2014-02-06 | Grant / award | 70,000 | $0.00 | 71,500 |
| 2013-09-21 | Grant / award (derivative) | 20,000 | $0.00 | 278,000 |
| 2013-05-06 | Grant / award (derivative) | 90,000 | $0.00 | 258,000 |
| 2012-09-28 | Grant / award (derivative) | 25,000 | $0.00 | 168,000 |
| 2012-02-16 | Grant / award (derivative) | 83,000 | $0.00 | 143,000 |
| 2011-10-21 | Grant / award (derivative) | 150,000 | $0.00 | 600,000 |
| 2010-08-27 | Open-market buy | 15,000 | $0.89 | 15,000 |
| 2010-08-16 | Grant / award (derivative) | 120,000 | $0.00 | 450,000 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.