The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of West Alfred P Jr since 2015.
This trader's CIK number is 1059374.
At the time of last reporting, West Alfred P Jr was the Executive Chairman of Sei Investments Co. (stock ticker symbol SEIC).
Also see all insider trading activities at Sei Investments Co.
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | SEIC | 0 | $0 | 295,340 | $24,055,392 | 0 | $0 |
| 2024 | SEIC | 0 | $0 | 844,512 | $62,580,046 | 35,000 | $1,422,400 |
| 2023 | SEIC | 0 | $0 | 922,411 | $54,175,350 | 0 | $0 |
| 2022 | SEIC | 0 | $0 | 265,261 | $14,816,207 | 50,000 | $1,122,500 |
| 2021 | SEIC | 0 | $0 | 232,339 | $13,882,013 | 50,000 | $788,500 |
| 2020 | SEIC | 0 | $0 | 419,460 | $23,693,836 | 50,000 | $1,193,000 |
| 2019 | SEIC | 0 | $0 | 385,000 | $21,422,995 | 75,000 | $1,323,750 |
| 2018 | SEIC | 0 | $0 | 455,000 | $24,194,589 | 100,000 | $1,462,000 |
| 2017 | SEIC | 0 | $0 | 778,010 | $42,016,571 | 0 | $0 |
| 2016 | SEIC | 0 | $0 | 404,582 | $18,182,994 | 0 | $0 |
| 2015 | SEIC | 0 | $0 | 352,500 | $16,748,585 | 0 | $0 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-05-28 | SEIC | Sale | 75,000 | 85.78 | 6,433,500 |
| 2025-05-29 | SEIC | Sale | 66,126 | 84.73 | 5,603,186 |
| 2025-03-05 | SEIC | Sale | 1,372 | 76.28 | 104,656 |
| 2025-03-03 | SEIC | Sale | 72,842 | 79.56 | 5,795,090 |
| 2025-03-04 | SEIC | Sale | 80,000 | 76.49 | 6,118,960 |
| 2024-12-16 | SEIC | Sale | 52,042 | 85.38 | 4,443,502 |
| 2024-12-13 | SEIC | Sale | 94,158 | 86.37 | 8,132,426 |
| 2024-12-06 | SEIC | Sale | 5,984 | 84.23 | 504,032 |
| 2024-12-04 | SEIC | Option Ex | 35,000 | 40.64 | 1,422,400 |
| 2024-12-04 | SEIC | Sale | 19,010 | 82.49 | 1,568,134 |
| 2024-11-08 | SEIC | Sale | 100,000 | 80.26 | 8,026,000 |
| 2024-11-11 | SEIC | Sale | 7,099 | 80.81 | 573,670 |
| 2024-11-07 | SEIC | Sale | 30,000 | 80.24 | 2,407,200 |
| 2024-08-29 | SEIC | Sale | 5,670 | 67.50 | 382,725 |
| 2024-08-28 | SEIC | Sale | 61,000 | 67.36 | 4,108,960 |
| 2024-08-27 | SEIC | Sale | 40,129 | 66.90 | 2,684,630 |
| 2024-08-23 | SEIC | Sale | 27,419 | 67.48 | 1,850,234 |
| 2024-08-26 | SEIC | Sale | 44,163 | 67.55 | 2,983,210 |
| 2024-05-14 | SEIC | Sale | 475 | 67.91 | 32,257 |
| 2024-05-13 | SEIC | Sale | 48,000 | 68.09 | 3,268,320 |
| 2024-05-10 | SEIC | Sale | 70,000 | 68.60 | 4,802,000 |
| 2024-05-09 | SEIC | Sale | 70,000 | 68.62 | 4,803,400 |
| 2024-03-28 | SEIC | Sale | 19,363 | 72.14 | 1,396,846 |
| 2024-03-26 | SEIC | Sale | 150,000 | 70.75 | 10,612,500 |
| 2023-11-22 | SEIC | Sale | 18,559 | 57.91 | 1,074,751 |
| 2023-11-21 | SEIC | Sale | 90,478 | 57.85 | 5,234,152 |
| 2023-11-17 | SEIC | Sale | 48,159 | 58.00 | 2,793,222 |
| 2023-11-20 | SEIC | Sale | 49,946 | 58.24 | 2,908,855 |
| 2023-09-11 | SEIC | Sale | 18,808 | 61.02 | 1,147,664 |
| 2023-09-12 | SEIC | Sale | 70,440 | 60.76 | 4,279,582 |
| 2023-09-13 | SEIC | Sale | 43,192 | 60.14 | 2,597,566 |
| 2023-06-23 | SEIC | Sale | 60,270 | 56.96 | 3,432,979 |
| 2023-06-22 | SEIC | Sale | 41,304 | 57.68 | 2,382,414 |
| 2023-06-21 | SEIC | Sale | 58,687 | 58.68 | 3,443,753 |
| 2023-06-20 | SEIC | Sale | 46,647 | 58.99 | 2,751,706 |
| 2023-03-29 | SEIC | Sale | 15,659 | 56.06 | 877,843 |
| 2022-03-27 | SEIC | Sale | 65,900 | 55.45 | 3,654,155 |
| 2022-03-23 | SEIC | Sale | 36,462 | 55.40 | 2,019,994 |
| 2022-03-24 | SEIC | Sale | 100,000 | 55.59 | 5,559,000 |
| 2023-02-09 | SEIC | Sale | 29,568 | 63.29 | 1,871,358 |
| 2023-02-08 | SEIC | Sale | 37,566 | 63.54 | 2,386,943 |
| 2023-02-06 | SEIC | Sale | 35,936 | 63.39 | 2,277,983 |
| 2023-02-07 | SEIC | Sale | 54,830 | 63.49 | 3,481,430 |
| 2022-12-16 | SEIC | Sale | 100,000 | 58.03 | 5,803,000 |
| 2022-12-19 | SEIC | Sale | 6,875 | 57.48 | 395,140 |
| 2022-11-16 | SEIC | Option Ex | 50,000 | 22.45 | 1,122,500 |
| 2022-09-15 | SEIC | Sale | 83,386 | 55.07 | 4,592,067 |
| 2022-09-16 | SEIC | Sale | 75,000 | 53.68 | 4,026,000 |
| 2021-12-08 | SEIC | Sale | 32,345 | 61.65 | 1,994,069 |
| 2021-12-09 | SEIC | Sale | 100,000 | 61.00 | 6,100,000 |
| 2021-12-06 | SEIC | Option Ex | 50,000 | 15.77 | 788,500 |
| 2021-02-17 | SEIC | Sale | 54,043 | 58.20 | 3,145,302 |
| 2021-02-12 | SEIC | Sale | 45,951 | 57.51 | 2,642,642 |
| 2020-12-09 | SEIC | Option Ex | 50,000 | 23.86 | 1,193,000 |
| 2020-12-01 | SEIC | Sale | 10,069 | 53.81 | 541,812 |
| 2020-11-30 | SEIC | Sale | 119,391 | 53.40 | 6,375,479 |
| 2020-09-18 | SEIC | Sale | 65,000 | 50.19 | 3,262,350 |
| 2020-09-17 | SEIC | Sale | 35,000 | 50.06 | 1,752,100 |
| 2020-02-24 | SEIC | Sale | 11,587 | 66.43 | 769,724 |
| 2020-02-26 | SEIC | Sale | 56,002 | 63.19 | 3,538,766 |
| 2020-02-27 | SEIC | Sale | 122,411 | 60.89 | 7,453,605 |
| 2019-12-13 | SEIC | Sale | 85,000 | 65.59 | 5,575,150 |
| 2019-11-06 | SEIC | Option Ex | 75,000 | 17.65 | 1,323,750 |
| 2019-03-01 | SEIC | Sale | 116,412 | 53.03 | 6,173,328 |
| 2019-02-28 | SEIC | Sale | 83,588 | 52.75 | 4,409,267 |
| 2019-02-27 | SEIC | Sale | 75,000 | 52.61 | 3,945,750 |
| 2019-02-26 | SEIC | Sale | 25,000 | 52.78 | 1,319,500 |
| 2018-12-03 | SEIC | Option Ex | 100,000 | 14.62 | 1,462,000 |
| 2018-11-27 | SEIC | Sale | 100,000 | 53.37 | 5,337,000 |
| 2018-11-28 | SEIC | Sale | 112,995 | 53.45 | 6,039,582 |
| 2018-11-23 | SEIC | Sale | 36,226 | 52.96 | 1,918,528 |
| 2018-11-26 | SEIC | Sale | 60,541 | 53.47 | 3,237,127 |
| 2018-11-20 | SEIC | Sale | 100,000 | 52.48 | 5,248,000 |
| 2018-11-21 | SEIC | Sale | 45,238 | 53.37 | 2,414,352 |
| 2017-11-01 | SEIC | Sale | 67,010 | 64.64 | 4,331,526 |
| 2017-11-02 | SEIC | Sale | 50,000 | 64.64 | 3,232,000 |
| 2017-08-04 | SEIC | Sale | 50,000 | 55.94 | 2,797,000 |
| 2017-08-03 | SEIC | Sale | 50,000 | 56.06 | 2,803,000 |
| 2017-08-01 | SEIC | Sale | 50,000 | 56.63 | 2,831,500 |
| 2017-08-02 | SEIC | Sale | 50,000 | 56.16 | 2,808,000 |
| 2017-06-12 | SEIC | Sale | 15,884 | 52.46 | 833,274 |
| 2017-06-09 | SEIC | Sale | 50,000 | 52.11 | 2,605,500 |
| 2017-06-08 | SEIC | Sale | 34,116 | 51.65 | 1,762,091 |
| 2017-04-26 | SEIC | Sale | 50,000 | 50.94 | 2,547,000 |
| 2017-04-24 | SEIC | Sale | 75,000 | 50.78 | 3,808,500 |
| 2017-04-25 | SEIC | Sale | 50,000 | 50.78 | 2,539,000 |
| 2017-02-09 | SEIC | Sale | 71,000 | 49.08 | 3,484,680 |
| 2017-02-06 | SEIC | Sale | 25,000 | 49.01 | 1,225,250 |
| 2017-02-07 | SEIC | Sale | 25,000 | 48.93 | 1,223,250 |
| 2017-02-03 | SEIC | Sale | 65,000 | 49.00 | 3,185,000 |
| 2016-11-09 | SEIC | Sale | 25,000 | 45.06 | 1,126,500 |
| 2016-11-08 | SEIC | Sale | 4,760 | 44.51 | 211,867 |
| 2016-11-04 | SEIC | Sale | 14,822 | 44.23 | 655,577 |
| 2016-11-07 | SEIC | Sale | 50,000 | 44.55 | 2,227,500 |
| 2016-10-25 | SEI | Sale | 60,000 | 45.12 | 2,707,200 |
| 2016-10-26 | SEI | Sale | 50,000 | 45.09 | 2,254,500 |
| 2016-08-08 | SEIC | Sale | 45,000 | 46.32 | 2,084,400 |
| 2016-08-05 | SEIC | Sale | 45,000 | 43.63 | 1,963,350 |
| 2016-05-02 | SEIC | Sale | 60,000 | 48.81 | 2,928,600 |
| 2016-03-17 | SEIC | Sale | 50,000 | 40.47 | 2,023,500 |
| 2015-10-30 | SEIC | Sale | 50,000 | 51.95 | 2,597,500 |
| 2015-09-11 | SEIC | Sale | 75,000 | 50.81 | 3,810,750 |
| 2015-09-14 | SEIC | Sale | 25,000 | 50.67 | 1,266,750 |
| 2015-05-08 | SEIC | Sale | 69,388 | 46.70 | 3,240,419 |
| 2015-05-06 | SECI | Sale | 13,162 | 46.05 | 606,110 |
| 2015-05-07 | SECI | Sale | 25,000 | 46.12 | 1,153,000 |
| 2015-03-11 | SEIC | Sale | 39,611 | 42.57 | 1,686,240 |
| 2015-03-06 | SEIC | Sale | 6,200 | 42.29 | 262,198 |
| 2015-03-02 | SEIC | Sale | 45,000 | 43.28 | 1,947,600 |
| 2015-03-03 | SEIC | Sale | 4,139 | 43.01 | 178,018 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by West Alfred P Jr (Executive Chairman of Sei Investments Co at the time of this reporting) see the Securities and Exchange Commission (SEC) website.