SEC CIK 1263136
PETERS WILLIAM J
Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| AMPHview stock → | 168,707 | 2026-09-21 |
Position History — AMPH
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — AMPH
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2026-09-21 | Open-market sale | 4,139 | $25.00 | 168,707 |
| 2026-08-07 | Option exercise (derivative) | 5,053 | $0.00 | 0 |
| 2026-08-07 | Open-market sale | 8,180 | $22.48 | 172,846 |
| 2026-08-07 | Option exercise | 5,053 | $19.79 | 181,026 |
| 2026-03-15 | Tax withholding | 1,973 | $18.18 | 175,063 |
| 2026-03-10 | Tax withholding | 3,297 | $18.91 | 177,036 |
| 2026-03-09 | Grant / award (derivative) | 121,071 | $0.00 | 121,071 |
| 2026-03-09 | Grant / award | 58,693 | $0.00 | 180,333 |
| 2026-03-06 | Tax withholding | 2,146 | $19.34 | 121,640 |
| 2026-03-04 | Tax withholding | 1,744 | $19.96 | 123,786 |
| 2025-05-19 | Tax withholding | 273 | $24.79 | 124,985 |
| 2025-03-17 | Tax withholding | 3,004 | $27.69 | 125,258 |
| 2025-03-15 | Tax withholding | 1,968 | $26.66 | 128,262 |
| 2025-03-10 | Grant / award (derivative) | 78,039 | $0.00 | 78,039 |
| 2025-03-10 | Grant / award | 36,747 | $0.00 | 130,230 |
| 2025-03-06 | Tax withholding | 2,141 | $28.32 | 93,483 |
| 2025-03-04 | Option exercise (derivative) | 7,490 | $0.00 | 0 |
| 2025-03-04 | Option exercise | 7,490 | $13.35 | 101,594 |
| 2025-03-04 | Tax withholding | 1,739 | $27.62 | 95,624 |
| 2025-03-04 | Open-market sale | 4,231 | $27.54 | 97,363 |
| 2024-11-06 | Option exercise (derivative) | 7,426 | $0.00 | 23,674 |
| 2024-11-06 | Open-market sale | 7,426 | $52.05 | 94,103 |
| 2024-11-06 | Option exercise | 7,426 | $13.03 | 101,529 |
| 2024-07-31 | Option exercise (derivative) | 10,282 | $0.00 | 4,943 |
| 2024-07-31 | Option exercise | 10,282 | $20.23 | 104,385 |
| 2024-07-31 | Open-market sale | 10,282 | $44.23 | 94,103 |
| 2024-06-27 | Open-market sale | 2,961 | $40.85 | 94,738 |
| 2024-06-27 | Open-market sale | 635 | $41.29 | 94,103 |
| 2024-05-19 | Tax withholding | 387 | $43.48 | 97,268 |
| 2024-03-17 | Tax withholding | 4,255 | $43.05 | 97,655 |
| 2024-03-16 | Tax withholding | 5,105 | $43.05 | 101,910 |
| 2024-03-15 | Tax withholding | 2,285 | $43.05 | 107,015 |
| 2024-03-06 | Option exercise (derivative) | 8,826 | $0.00 | 0 |
| 2024-03-06 | Open-market sale | 4,681 | $46.98 | 111,541 |
| 2024-03-06 | Option exercise | 8,826 | $11.33 | 129,626 |
| 2024-03-06 | Open-market sale | 51 | $48.00 | 111,490 |
| 2024-03-06 | Tax withholding | 2,190 | $46.31 | 109,300 |
| 2024-03-06 | Open-market sale | 13,404 | $46.30 | 116,222 |
| 2024-03-04 | Grant / award (derivative) | 40,955 | $0.00 | 40,955 |
| 2024-03-04 | Grant / award | 19,440 | $0.00 | 120,800 |
| 2023-11-14 | Option exercise (derivative) | 21,250 | $0.00 | 15,225 |
| 2023-11-14 | Option exercise (derivative) | 38,000 | $0.00 | 31,100 |
| 2023-11-14 | Open-market sale | 30,162 | $55.67 | 116,228 |
| 2023-11-14 | Option exercise | 21,250 | $20.23 | 122,610 |
| 2023-11-14 | Option exercise | 38,000 | $13.03 | 160,610 |
| 2023-11-14 | Open-market sale | 14,220 | $54.76 | 146,390 |
| 2023-11-14 | Open-market sale | 14,868 | $56.53 | 101,360 |
| 2023-09-06 | Option exercise (derivative) | 21,250 | $0.00 | 36,475 |
| 2023-09-06 | Option exercise (derivative) | 10,000 | $0.00 | 5,053 |
| 2023-09-06 | Option exercise (derivative) | 25,250 | $0.00 | 69,100 |
| 2023-09-06 | Option exercise | 25,250 | $13.03 | 162,103 |
| 2023-09-06 | Open-market sale | 60,684 | $51.75 | 101,419 |
| 2023-09-06 | Open-market sale | 59 | $52.26 | 101,360 |
| 2023-09-06 | Option exercise | 21,250 | $20.23 | 136,853 |
| 2023-09-06 | Option exercise | 10,000 | $19.79 | 115,603 |
| 2023-06-15 | Option exercise (derivative) | 36,868 | $0.00 | 15,053 |
| 2023-06-15 | Option exercise | 36,868 | $19.79 | 142,471 |
| 2023-06-15 | Open-market sale | 11,868 | $48.79 | 130,603 |
| 2023-06-15 | Open-market sale | 13,000 | $52.79 | 105,603 |
| 2023-06-15 | Open-market sale | 12,000 | $50.79 | 118,603 |
| 2023-06-02 | Option exercise (derivative) | 11,000 | $0.00 | 7,490 |
| 2023-06-02 | Open-market sale | 11,000 | $46.35 | 105,603 |
| 2023-06-02 | Option exercise | 11,000 | $13.35 | 116,603 |
| 2023-05-19 | Tax withholding | 378 | $44.16 | 104,770 |
| 2023-05-18 | Option exercise (derivative) | 10,500 | $0.00 | 18,490 |
| 2023-05-18 | Option exercise | 10,500 | $13.35 | 115,648 |
| 2023-05-18 | Open-market sale | 10,500 | $44.35 | 105,148 |
| 2023-04-17 | Option exercise (derivative) | 5,632 | $0.00 | 28,990 |
| 2023-04-17 | Option exercise | 5,632 | $13.35 | 110,780 |
| 2023-04-17 | Open-market sale | 5,632 | $42.35 | 105,148 |
| 2023-04-13 | Option exercise (derivative) | 4,868 | $0.00 | 34,622 |
| 2023-04-13 | Option exercise | 4,868 | $13.35 | 110,016 |
| 2023-04-13 | Open-market sale | 4,868 | $42.35 | 105,148 |
| 2023-04-10 | Option exercise (derivative) | 10,032 | $0.00 | 39,490 |
| 2023-04-10 | Option exercise | 10,032 | $13.35 | 115,180 |
| 2023-04-10 | Open-market sale | 10,032 | $40.35 | 105,148 |
| 2023-03-17 | Tax withholding | 4,162 | $36.29 | 105,148 |
| 2023-03-16 | Tax withholding | 4,995 | $37.60 | 109,310 |
| 2023-03-15 | Option exercise (derivative) | 6,688 | $0.00 | 0 |
| 2023-03-15 | Open-market sale | 12,776 | $36.43 | 118,451 |
| 2023-03-15 | Tax withholding | 4,146 | $36.84 | 114,305 |
| 2023-03-15 | Option exercise | 6,688 | $14.95 | 131,227 |
| 2023-03-06 | Grant / award (derivative) | 50,416 | $0.00 | 50,416 |
| 2023-03-06 | Grant / award | 23,925 | $0.00 | 124,539 |
| 2023-03-01 | Option exercise (derivative) | 10,974 | $0.00 | 8,826 |
| 2023-03-01 | Open-market sale | 10,974 | $36.33 | 100,614 |
| 2023-03-01 | Option exercise | 10,974 | $11.33 | 111,588 |
| 2022-08-09 | Option exercise (derivative) | 10,000 | $0.00 | 49,522 |
| 2022-08-09 | Option exercise | 10,000 | $13.35 | 110,480 |
| 2022-08-09 | Open-market sale | 10,000 | $38.35 | 100,480 |
| 2022-06-30 | Option exercise (derivative) | 18,386 | $0.00 | 6,688 |
| 2022-06-30 | Option exercise | 18,386 | $14.95 | 118,866 |
| 2022-06-30 | Open-market sale | 18,386 | $34.95 | 100,480 |
| 2022-06-17 | Open-market sale | 5,512 | $32.05 | 100,480 |
| 2022-05-19 | Tax withholding | 378 | $33.70 | 104,609 |
| 2022-03-17 | Tax withholding | 4,162 | $34.18 | 104,987 |
| 2022-03-16 | Option exercise (derivative) | 50,777 | $0.00 | 0 |
| 2022-03-16 | Open-market sale | 3,760 | $34.36 | 114,144 |
| 2022-03-16 | Tax withholding | 4,995 | $34.22 | 109,149 |
| 2022-03-16 | Open-market sale | 47,017 | $33.93 | 117,904 |
| 2022-03-16 | Option exercise | 50,777 | $14.40 | 164,921 |
| 2022-03-15 | Grant / award (derivative) | 50,743 | $0.00 | 50,743 |
| 2022-03-15 | Tax withholding | 5,989 | $34.74 | 114,144 |
| 2022-03-15 | Open-market sale | 7,900 | $34.46 | 98,142 |
| 2022-03-15 | Grant / award | 21,991 | $0.00 | 120,133 |
| 2022-03-07 | Option exercise (derivative) | 13,026 | $0.00 | 59,522 |
| 2022-03-07 | Open-market sale | 13,026 | $29.35 | 106,042 |
| 2022-03-07 | Option exercise | 13,026 | $13.35 | 119,068 |
| 2022-02-25 | Option exercise (derivative) | 23,000 | $0.00 | 25,074 |
| 2022-02-25 | Open-market sale | 11,000 | $27.95 | 118,042 |
| 2022-02-25 | Option exercise | 23,000 | $14.95 | 129,042 |
| 2022-02-25 | Open-market sale | 12,000 | $28.95 | 106,042 |
| 2022-02-08 | Option exercise (derivative) | 10,000 | $0.00 | 48,074 |
| 2022-02-08 | Open-market sale | 10,000 | $26.95 | 106,042 |
| 2022-02-08 | Option exercise | 10,000 | $14.95 | 116,042 |
| 2022-01-10 | Option exercise (derivative) | 16,000 | $0.00 | 50,777 |
| 2022-01-10 | Option exercise | 16,000 | $14.40 | 122,042 |
| 2022-01-10 | Open-market sale | 16,000 | $25.40 | 106,042 |
| 2022-01-07 | Option exercise (derivative) | 31,776 | $0.00 | 66,777 |
| 2022-01-07 | Open-market sale | 11,776 | $24.90 | 106,042 |
| 2022-01-07 | Option exercise | 31,776 | $14.40 | 137,818 |
| 2022-01-07 | Open-market sale | 20,000 | $24.15 | 117,818 |
| 2021-12-30 | Option exercise (derivative) | 10,000 | $0.00 | 98,553 |
| 2021-12-30 | Open-market sale | 10,000 | $23.40 | 106,042 |
| 2021-12-30 | Option exercise | 10,000 | $14.40 | 116,042 |
| 2021-12-21 | Option exercise (derivative) | 8,256 | $0.00 | 108,553 |
| 2021-12-21 | Option exercise | 8,256 | $14.40 | 114,298 |
| 2021-12-21 | Open-market sale | 8,256 | $22.40 | 106,042 |
| 2021-12-16 | Option exercise (derivative) | 1,744 | $0.00 | 116,809 |
| 2021-12-16 | Open-market sale | 1,744 | $22.40 | 106,042 |
| 2021-12-16 | Option exercise | 1,744 | $14.40 | 107,786 |
| 2021-11-11 | Option exercise (derivative) | 10,000 | $0.00 | 19,800 |
| 2021-11-11 | Option exercise | 10,000 | $11.33 | 115,689 |
| 2021-11-11 | Open-market sale | 10,000 | $21.33 | 105,689 |
| 2021-08-16 | Open-market sale | 6,589 | $19.35 | 105,689 |
| 2021-07-07 | Option exercise (derivative) | 10,000 | $0.00 | 29,800 |
| 2021-07-07 | Open-market sale | 10,000 | $20.37 | 112,278 |
| 2021-07-07 | Option exercise | 10,000 | $11.33 | 122,278 |
| 2021-05-19 | Grant / award (derivative) | 7,209 | $0.00 | 7,209 |
| 2021-05-19 | Grant / award | 3,047 | $0.00 | 111,349 |
| 2021-03-17 | Grant / award (derivative) | 78,833 | $0.00 | 78,833 |
| 2021-03-17 | Grant / award | 33,574 | $0.00 | 108,302 |
| 2021-03-16 | Tax withholding | 6,398 | $18.44 | 74,728 |
| 2021-03-15 | Tax withholding | 4,178 | $19.15 | 81.13 |
| 2021-03-15 | Open-market sale | 4,244 | $19.03 | 85,304 |
| 2021-01-19 | Open-market sale | 6,495 | $18.67 | 89,548 |
| 2020-08-14 | Open-market sale | 5,512 | $20.36 | 95,652 |
| 2020-07-06 | Option exercise (derivative) | 10,000 | $0.00 | 39,800 |
| 2020-07-06 | Open-market sale | 13,656 | $22.00 | 101,164 |
| 2020-07-06 | Option exercise | 10,000 | $11.33 | 114,820 |
| 2020-03-17 | Tax withholding | 3,434 | $14.50 | 104,038 |
| 2020-03-16 | Grant / award (derivative) | 94,350 | $0.00 | 94,350 |
| 2020-03-16 | Grant / award | 40,291 | $0.00 | 107,472 |
| 2020-03-16 | Tax withholding | 2,915 | $13.03 | 67,181 |
| 2020-03-15 | Tax withholding | 4,178 | $14.19 | 70,096 |
| 2020-03-13 | Open-market sale | 1,737 | $14.43 | 74,274 |
| 2020-03-13 | Open-market sale | 2,964 | $13.66 | 76,011 |
| 2020-01-21 | Open-market sale | 3,990 | $20.07 | 78,975 |
| 2019-09-16 | Option exercise (derivative) | 9,800 | $0.00 | 49,800 |
| 2019-09-16 | Open-market sale | 9,800 | $21.76 | 82,453 |
| 2019-09-16 | Option exercise | 9,800 | $11.33 | 92,253 |
| 2019-08-15 | Open-market sale | 4,942 | $21.00 | 82,453 |
| 2019-03-26 | Tax withholding | 2,553 | $20.54 | 86,339 |
| 2019-03-17 | Tax withholding | 5,228 | $20.23 | 88,892 |
| 2019-03-16 | Tax withholding | 4,437 | $20.23 | 94,120 |
| 2019-03-15 | Grant / award (derivative) | 57,725 | $0.00 | 57,725 |
| 2019-03-15 | Grant / award | 25,951 | $0.00 | 101,501 |
| 2019-03-15 | Tax withholding | 2,944 | $20.23 | 98,557 |
| 2019-03-04 | Option exercise (derivative) | 1,500 | $0.00 | 72,548 |
| 2019-03-04 | Option exercise | 1,500 | $13.35 | 77,050 |
| 2019-03-04 | Open-market sale | 1,500 | $25.36 | 75,550 |
| 2019-02-15 | Option exercise (derivative) | 10,016 | $0.00 | 74,048 |
| 2019-02-15 | Open-market sale | 10,016 | $24.37 | 75,550 |
| 2019-02-15 | Option exercise | 10,016 | $13.35 | 85,566 |
| 2019-01-02 | Open-market sale | 3,245 | $19.52 | 75,550 |
| 2018-12-03 | Option exercise (derivative) | 10,000 | $0.00 | 59,600 |
| 2018-12-03 | Option exercise | 10,000 | $11.33 | 88,795 |
| 2018-12-03 | Open-market sale | 10,000 | $22.40 | 78,795 |
| 2018-11-12 | Open-market sale | 3,172 | $20.61 | 78,152 |
| 2018-11-09 | Option exercise (derivative) | 10,000 | $0.00 | 69,600 |
| 2018-11-09 | Option exercise | 10,000 | $11.33 | 91,324 |
| 2018-11-09 | Open-market sale | 10,000 | $21.47 | 81,324 |
| 2018-11-08 | Option exercise (derivative) | 19,800 | $0.00 | 79,600 |
| 2018-11-08 | Option exercise | 19,800 | $11.33 | 106,636 |
| 2018-11-08 | Open-market sale | 16,784 | $20.26 | 89,852 |
| 2018-11-08 | Open-market sale | 8,528 | $20.85 | 81,324 |
| 2018-08-16 | Open-market sale | 2,407 | $17.59 | 86,836 |
| 2018-07-09 | Open-market sale | 3,250 | $16.46 | 89,243 |
| 2018-04-21 | Tax withholding | 1,273 | $19.31 | 91,374 |
| 2018-03-26 | Tax withholding | 1,677 | $18.61 | 92,647 |
| 2018-03-17 | Tax withholding | 3,434 | $19.91 | 94,324 |
| 2018-03-16 | Tax withholding | 2,915 | $19.91 | 97,758 |
| 2018-03-15 | Grant / award (derivative) | 51,921 | $0.00 | 51,921 |
| 2018-03-15 | Grant / award | 22,359 | $0.00 | 100,673 |
| 2018-03-13 | Option exercise (derivative) | 19,801 | $0.00 | 99,400 |
| 2018-03-13 | Open-market sale | 19,801 | $20.10 | 78,314 |
| 2018-03-13 | Option exercise | 19,801 | $11.33 | 98,115 |
| 2017-12-01 | Open-market sale | 6,226 | $19.67 | 78,314 |
| 2017-10-13 | Open-market sale | 3,026 | $18.56 | 83,496 |
| 2017-05-30 | Open-market sale | 4,297 | $16.93 | 86,522 |
| 2017-04-21 | Tax withholding | 1,384 | $14.74 | 90,819 |
| 2017-03-26 | Tax withholding | 1,823 | $13.76 | 92,203 |
| 2017-03-17 | Tax withholding | 3,704 | $13.75 | 94,026 |
| 2017-03-16 | Grant / award (derivative) | 84,064 | $0.00 | 84,064 |
| 2017-03-16 | Grant / award | 33,707 | $0.00 | 97,730 |
| 2016-08-12 | Open-market sale | 1,027 | $18.19 | 63,625 |
| 2016-07-18 | Open-market sale | 2,297 | $17.76 | 64,652 |
| 2016-06-02 | Open-market sale | 2,297 | $16.00 | 66,949 |
| 2016-04-21 | Tax withholding | 1,383 | $13.05 | 69,246 |
| 2016-03-26 | Tax withholding | 1,823 | $11.96 | 70,629 |
| 2016-03-17 | Grant / award (derivative) | 119,201 | $0.00 | 119,201 |
| 2016-03-17 | Grant / award | 39,717 | $0.00 | 72,452 |
| 2015-04-21 | Tax withholding | 1,384 | $15.21 | 32,735 |
| 2015-03-26 | Grant / award (derivative) | 58,074 | $0.00 | 58,074 |
| 2015-03-26 | Grant / award | 19,397 | $0.00 | 34,119 |
| 2014-06-24 | — | — | — | 14,722 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.