Kosiba John W JR Insider Transactions
AMSC Stock Insider Transactions
This summary is for reference only. We do not guarantee the accuracy and completeness of the information. Please do your own due diligence.Direct Holdings
| Class A Shares Change | Class A Shares After | Class B Shares Change | Class B Shares After | Price | Amount | Date | Msg | Url |
|---|---|---|---|---|---|---|---|---|
| -6,769 | 334,377 | 0 | 37.3267 | $252,664 | 2026-06-11 | Sale | Filing Url | |
| -4,835 | 341,146 | 0 | 41.5007 | $200,656 | 2026-06-10 | Sale | Filing Url | |
| -36,909 | 345,981 | 0 | 49.461 | $1,825,556 | 2026-06-03 | Sale | Filing Url | |
| 30,000 | 382,890 | 0 | 2026-06-03 | Grant, award...etc | ||||
| -50,000 | 352,890 | 0 | 54.341 | $2,717,050 | 2025-08-06 | Sale | Filing Url | |
| -6,642 | 402,890 | 0 | 28.5483 | $189,618 | 2025-06-12 | Sale | Filing Url | |
| -4,744 | 409,532 | 31.8323 | $151,012 | 2025-06-09 | Sale | Filing Url | ||
| -50,000 | 414,276 | 0 | 25.5543 | $1,277,715 | 2025-05-29 | Sale | Filing Url | |
| -11,860 | 464,276 | 24.4966 | $290,530 | 2025-05-22 | Sale | Filing Url | ||
| 120,000 | 476,136 | 0 | 2025-05-19 | Grant, award...etc | Filing Url | |||
| -50,000 | 356,136 | 28.2819 | $1,414,095 | 2024-11-06 | Sale | Filing Url | ||
| 90,000 | 406,136 | 0 | 2024-09-30 | Grant, award...etc | Filing Url | |||
| -32,000 | 316,136 | 21.6797 | $693,750 | 2024-06-12 | Sale | Filing Url | ||
| -29,000 | 348,136 | 0 | 14.7825 | $428,693 | 2024-05-23 | Sale | Filing Url | |
| -80,010 | 377,136 | 0 | 6.1544 | $492,414 | 2023-06-23 | Sale | Filing Url | |
| 105,000 | 458,759 | 0 | 2023-06-20 | Grant, award...etc | Filing Url | |||
| 15,000 | 353,759 | 3.4981 | $52,472 | 2022-12-19 | Open Market Purchase | Filing Url | ||
| 25,000 | 338,759 | 3.336 | $83,400 | 2022-12-13 | Open Market Purchase | Filing Url | ||
| 125,000 | 313,759 | 0 | 2022-10-21 | Grant, award...etc | Filing Url | |||
| -8,473 | 188,759 | 5.9745 | $50,622 | 2022-06-13 | Sale | Filing Url | ||
| -13,325 | 197,232 | 5.4542 | $72,677 | 2022-06-02 | Sale | Filing Url | ||
| -22,754 | 210,557 | 11.3126 | $257,407 | 2021-12-13 | Sale | Filing Url | ||
| -11,008 | 233,311 | 0 | 18.9547 | $208,653 | 2021-11-02 | Sale | Filing Url | |
| 11,943 | 244,319 | 12.54 | $149,765 | 2021-08-06 | Grant, award...etc | Filing Url | ||
| -6,409 | 232,376 | 17.66 | $113,183 | 2021-07-06 | Sale | Filing Url | ||
| -5,794 | 238,785 | 14.177 | $82,142 | 2021-05-24 | Sale | Filing Url | ||
| 30,000 | 244,579 | 0 | 2021-05-24 | Grant, award...etc | ||||
| -25,094 | 214,579 | 0 | 26.5616 | $666,537 | 2021-01-22 | Sale | Filing Url | |
| -25,000 | 239,673 | 19.2784 | $481,960 | 2020-11-30 | Sale | Filing Url | ||
| -11,095 | 264,673 | 0 | 13.91 | $154,331 | 2020-11-02 | Sale | Filing Url | |
| -5,228 | 275,768 | 9.74 | $50,921 | 2020-07-29 | Sale | Filing Url | ||
| -6,518 | 280,996 | 7.28 | $47,451 | 2020-06-30 | Sale | Filing Url | ||
| -5,324 | 287,514 | 7.91 | $42,113 | 2020-06-04 | Sale | Filing Url | ||
| 116,667 | 316,838 | 0 | 2020-05-26 | Grant, award...etc | Filing Url | |||
| -10,287 | 200,171 | 7.6306 | $78,496 | 2019-12-23 | Sale | Filing Url | ||
| -7,378 | 217,883 | 8.08 | $59,614 | 2019-11-04 | Sale | Filing Url | ||
| 45,500 | 225,211 | 0 | 2019-11-04 | Grant, award...etc | ||||
| -5,307 | 179,711 | 8.81 | $46,755 | 2019-07-30 | Sale | Filing Url | ||
| -6,529 | 185,018 | 9.28 | $60,589 | 2019-07-02 | Sale | Filing Url | ||
| -2,365 | 191,547 | 11.09 | $26,228 | 2019-05-14 | Sale | Filing Url | ||
| -12,374 | 193,912 | 10.3113 | $127,592 | 2019-01-02 | Sale | Filing Url | ||
| -6,250 | 206,286 | 10.5836 | $66,148 | 2018-12-11 | Sale | Filing Url | ||
| -1,617 | 212,536 | 9.48 | $15,329 | 2018-11-13 | Sale | Filing Url | ||
| 50,000 | 214,153 | 0 | 2018-11-05 | Grant, award...etc | Filing Url | |||
| -1,602 | 164,153 | 5.74 | $9,195 | 2018-08-06 | Sale | Filing Url | ||
| 59,000 | 165,755 | 0 | 2018-07-02 | Grant, award...etc | Filing Url | |||
| -6,798 | 106,755 | 0 | 6.89 | $46,838 | 2018-05-15 | Sale | Filing Url | |
| 10,000 | 113,553 | 0 | 0 | 2018-02-09 | Open Market Purchase | Filing Url | ||
| 72,000 | 108,553 | 0 | 2017-07-31 | Grant, award...etc | Filing Url | |||
| -7,080 | 36,553 | 0 | 4.06 | $28,745 | 2017-05-16 | Sale | Filing Url | |
| 6,250 | 43,633 | 4 | $25,000 | 2017-05-12 | Open Market Purchase | Filing Url | ||
| -2,617 | 37,383 | 4.06 | $10,625 | 2017-05-09 | Sale | Filing Url | ||
| 40,000 | 40,000 | 2017-04-11 | Initial | Filing Url |
By 401(k) plan
| Class A Shares Change | Class A Shares After | Class B Shares Change | Class B Shares After | Price | Amount | Date | Msg | Url |
|---|---|---|---|---|---|---|---|---|
| -9,843 | 0 | 55.26 | $543,924 | 2025-08-06 | Sale | Filing Url |