SEC CIK 1611283
Gerst Diane G.
Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| AMPHview stock → | 31,899 | 2026-06-01 |
Position History — AMPH
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — AMPH
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2026-06-01 | Grant / award (derivative) | 17,365 | $0.00 | 17,365 |
| 2026-06-01 | Grant / award | 8,143 | $0.00 | 31,899 |
| 2025-06-02 | Grant / award (derivative) | 11,402 | $0.00 | 11,402 |
| 2025-06-02 | Grant / award | 5,122 | $0.00 | 23,756 |
| 2024-06-03 | Grant / award (derivative) | 6,864 | $0.00 | 6,864 |
| 2024-06-03 | Grant / award | 3,076 | $0.00 | 18,634 |
| 2023-06-05 | Grant / award (derivative) | 7,016 | $0.00 | 7,016 |
| 2023-06-05 | Grant / award | 2,716 | $0.00 | 15,558 |
| 2022-07-18 | Option exercise (derivative) | 1,520 | $0.00 | 1,336 |
| 2022-07-18 | Option exercise | 1,520 | $20.08 | 14,362 |
| 2022-07-18 | Open-market sale | 1,520 | $37.23 | 12,842 |
| 2022-07-11 | Option exercise (derivative) | 1,521 | $0.00 | 2,856 |
| 2022-07-11 | Option exercise | 1,521 | $20.08 | 14,363 |
| 2022-07-11 | Open-market sale | 1,521 | $36.26 | 12,842 |
| 2022-07-05 | Option exercise (derivative) | 1,813 | $0.00 | 4,377 |
| 2022-07-05 | Option exercise | 1,813 | $20.08 | 14,655 |
| 2022-07-05 | Open-market sale | 1,813 | $35.00 | 12,842 |
| 2022-06-30 | Option exercise (derivative) | 3,333 | $0.00 | 3,626 |
| 2022-06-30 | Option exercise (derivative) | 1,813 | $0.00 | 6,190 |
| 2022-06-30 | Option exercise | 3,333 | $20.03 | 16,175 |
| 2022-06-30 | Option exercise | 1,813 | $20.08 | 17,988 |
| 2022-06-30 | Open-market sale | 5,146 | $35.00 | 12,842 |
| 2022-06-10 | Grant / award (derivative) | 10,984 | $0.00 | 10,984 |
| 2022-06-10 | Grant / award | 4,163 | $0.00 | 12,842 |
| 2021-06-07 | Grant / award (derivative) | 8,592 | $0.00 | 8,592 |
| 2021-06-07 | Grant / award | 3,009 | $0.00 | 8,679 |
| 2020-06-08 | Grant / award (derivative) | 8,003 | $0.00 | 8,003 |
| 2020-06-08 | Grant / award | 2,925 | $0.00 | 5,670 |
| 2019-06-12 | Grant / award (derivative) | 6,959 | $0.00 | 6,959 |
| 2019-06-12 | Grant / award | 2,745 | $0.00 | 2,745 |
| 2017-12-19 | Open-market sale | 523 | $19.48 | 30,164 |
| 2017-12-12 | Open-market sale | 523 | $18.96 | 30,687 |
| 2017-11-28 | Open-market sale | 523 | $18.15 | 31,210 |
| 2017-11-21 | Open-market sale | 523 | $18.81 | 31,733 |
| 2017-11-15 | Open-market sale | 523 | $17.77 | 32,256 |
| 2017-11-07 | Open-market sale | 523 | $17.93 | 32,779 |
| 2017-10-24 | Open-market sale | 523 | $18.29 | 33,302 |
| 2017-10-17 | Open-market sale | 523 | $18.48 | 33,825 |
| 2017-10-05 | Option exercise (derivative) | 8,444 | $0.00 | 25,330 |
| 2017-10-05 | Option exercise | 8,444 | $11.33 | 42,792 |
| 2017-10-05 | Open-market sale | 8,444 | $18.87 | 34,348 |
| 2017-06-15 | Tax withholding | 146 | $16.18 | 34,348 |
| 2017-04-14 | Tax withholding | 754 | $14.80 | 34,494 |
| 2017-03-26 | Tax withholding | 614 | $13.76 | 35,248 |
| 2017-03-17 | Tax withholding | 1,194 | $13.75 | 35,862 |
| 2017-03-16 | Grant / award (derivative) | 27,088 | $0.00 | 27,088 |
| 2017-03-16 | Grant / award | 10,861 | $0.00 | 37,056 |
| 2016-12-15 | Open-market sale | 2,940 | $20.51 | 26,195 |
| 2016-08-19 | Option exercise (derivative) | 10,046 | $0.00 | 4,954 |
| 2016-08-19 | Option exercise (derivative) | 14,000 | $0.00 | 14,000 |
| 2016-08-19 | Open-market sale | 24,046 | $19.28 | 28,985 |
| 2016-08-19 | Option exercise | 14,000 | $10.93 | 53,031 |
| 2016-08-19 | Option exercise | 10,046 | $14.23 | 39,031 |
| 2016-06-15 | Tax withholding | 146 | $15.76 | 28,985 |
| 2016-05-18 | Open-market sale | 1,427 | $13.97 | 28,649 |
| 2016-04-19 | Option exercise (derivative) | 5,607 | $0.00 | 6,183 |
| 2016-04-19 | Option exercise | 5,607 | $10.48 | 35,683 |
| 2016-04-19 | Open-market sale | 5,607 | $13.04 | 30,076 |
| 2016-04-18 | Option exercise (derivative) | 6,000 | $0.00 | 9,000 |
| 2016-04-18 | Option exercise (derivative) | 8,210 | $0.00 | 11,790 |
| 2016-04-18 | Option exercise | 8,210 | $10.48 | 39,713 |
| 2016-04-18 | Option exercise | 6,000 | $11.41 | 45,713 |
| 2016-04-18 | Open-market sale | 15,637 | $12.83 | 30,076 |
| 2016-04-14 | Tax withholding | 741 | $12.66 | 31,503 |
| 2016-03-26 | Tax withholding | 614 | $11.96 | 32,244 |
| 2016-03-17 | Grant / award (derivative) | 33,774 | $0.00 | 33,774 |
| 2016-03-17 | Grant / award | 11,253 | $0.00 | 32,858 |
| 2015-06-15 | Grant / award (derivative) | 4,685 | $0.00 | 4,685 |
| 2015-06-15 | Grant / award | 1,544 | $0.00 | 20,178 |
| 2015-04-14 | Tax withholding | 862 | $15.22 | 18,634 |
| 2015-04-09 | Grant / award (derivative) | 10,000 | $0.00 | 0 |
| 2015-04-08 | Open-market sale | 10,000 | $15.79 | 19,496 |
| 2015-04-08 | Option exercise | 10,000 | $14.80 | 29,496 |
| 2015-03-26 | Grant / award (derivative) | 20,028 | $0.00 | 20,028 |
| 2015-03-26 | Grant / award | 6,688 | $0.00 | 19,496 |
| 2014-06-24 | — | — | — | 4,728 |
| 2014-06-24 | — | — | — | 8,080 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.