Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Super Micro Computer, Inc. (SMCI) since 2015 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Super Micro Computer, Inc.. Table 2 shows the detailed insider transactions. This company's CIK number is 1375365.
Total stock buying since 2015: $4,125,301.
Total stock sales since 2015: $271,418,966.
Total stock option exercises since 2015: $40,211,972.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2025 | 0 | $0 | 1,719,166 | $84,111,408 | 203,154 | $541,338 |
| 2024 | 2,000 | $1,136,000 | 36,893 | $31,209,736 | 3,434,097 | $12,691,873 |
| 2023 | 11,000 | $1,853,450 | 576,920 | $92,583,236 | 655,923 | $16,223,043 |
| 2022 | 13,575 | $1,135,851 | 247,000 | $13,503,667 | 103,261 | $1,249,970 |
| 2021 | 0 | $0 | 561,349 | $22,295,830 | 416,773 | $4,907,760 |
| 2020 | 0 | $0 | 208,249 | $6,081,640 | 75,718 | $837,310 |
| 2019 | 0 | $0 | 0 | $0 | 14,708 | $0 |
| 2018 | 0 | $0 | 0 | $0 | 8,586 | $0 |
| 2017 | 0 | $0 | 107,500 | $2,819,692 | 62,937 | $473,995 |
| 2016 | 0 | $0 | 211,564 | $5,438,853 | 137,600 | $1,593,510 |
| 2015 | 0 | $0 | 422,051 | $13,374,904 | 219,581 | $1,693,173 |
| Trading Period | Insider Buying | Insider Sales | Option Exercises | |||
|---|---|---|---|---|---|---|
| year-month | Shares | Value | Shares | Value | Shares | Value |
| 2025-08 | 0 | $0 | 40,000 | $1,755,200 | 66,235 | $107,800 |
| 2025-07 | 0 | $0 | 400,000 | $24,000,000 | 34,532 | $0 |
| 2025-06 | 0 | $0 | 600,000 | $27,000,000 | 12,532 | $0 |
| 2025-05 | 0 | $0 | 495,400 | $22,260,298 | 57,000 | $76,538 |
| 2025-02 | 0 | $0 | 183,766 | $9,095,910 | 32,855 | $357,000 |
| 2024-12 | 0 | $0 | 0 | $0 | 860 | $0 |
| 2024-11 | 0 | $0 | 0 | $0 | 24,740 | $0 |
| 2024-10 | 0 | $0 | 0 | $0 | 3,360,000 | $11,793,819 |
| 2024-08 | 0 | $0 | 0 | $0 | 2,473 | $0 |
| 2024-07 | 0 | $0 | 0 | $0 | 82 | $0 |
| 2024-06 | 0 | $0 | 300 | $240,600 | 0 | $0 |
| 2024-05 | 0 | $0 | 800 | $652,793 | 5,280 | $0 |
| 2024-04 | 0 | $0 | 1,350 | $1,213,264 | 1,050 | $44,466 |
| 2024-02 | 2,000 | $1,136,000 | 32,519 | $28,187,063 | 37,688 | $780,752 |
| 2024-01 | 0 | $0 | 1,924 | $916,016 | 1,924 | $72,836 |
| 2023-12 | 0 | $0 | 143,150 | $36,445,344 | 38,865 | $3,209,782 |
| 2023-11 | 0 | $0 | 19,819 | $5,050,465 | 19,928 | $393,827 |
| 2023-10 | 0 | $0 | 1,922 | $468,234 | 1,922 | $72,760 |
| 2023-08 | 4,000 | $1,062,280 | 9,128 | $2,498,528 | 11,548 | $177,646 |
| 2023-07 | 0 | $0 | 1,926 | $633,758 | 1,926 | $72,912 |
| 2023-06 | 0 | $0 | 87,864 | $19,856,692 | 103,347 | $2,532,794 |
| 2023-05 | 4,000 | $534,730 | 17,067 | $3,912,577 | 12,032 | $189,160 |
| 2023-03 | 0 | $0 | 0 | $0 | 3,250 | $0 |
| 2023-02 | 3,000 | $256,440 | 8,500 | $722,200 | 585 | $0 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-08-22 | Kao George (SVP, OPERATIONS) | Sale | 40,000 | 43.88 | 1,755,200 |
| 2025-08-22 | Kao George (SVP, OPERATIONS) | Option Ex | 40,000 | 2.69 | 107,800 |
| 2025-08-10 | Weigand David E (SVP, Chief Financial Officer) | Option Ex | 4,150 | .00 | 0 |
| 2025-08-10 | Kao George (SVP, OPERATIONS) | Option Ex | 1,830 | .00 | 0 |
| 2025-08-10 | Clegg Don W (SVP, Worldwide Sales) | Option Ex | 2,300 | .00 | 0 |
| 2025-08-10 | Cheung Kenneth (SVP, Chief Accounting Officer) | Option Ex | 4,985 | .00 | 0 |
| 2025-08-10 | Liang Charles (President and CEO) | Option Ex | 2,110 | .00 | 0 |
| 2025-08-10 | Liu Liang Chiu-chu Sara | Option Ex | 2,110 | .00 | 0 |
| 2025-08-10 | Liaw Yih-shyan Wally (Director) | Option Ex | 8,750 | .00 | 0 |
| 2025-07-28 | Liang Charles (President and CEO) | Sale | 200,000 | 60.00 | 12,000,000 |
| 2025-07-28 | Liu Liang Chiu-chu Sara | Sale | 200,000 | 60.00 | 12,000,000 |
| 2025-07-01 | Weigand David E (SVP, Chief Financial Officer) | Option Ex | 18,571 | .00 | 0 |
| 2025-07-01 | Kao George (SVP, OPERATIONS) | Option Ex | 603 | .00 | 0 |
| 2025-07-01 | Clegg Don W (SVP, Worldwide Sales) | Option Ex | 11,305 | .00 | 0 |
| 2025-07-01 | Liang Charles (President and CEO) | Option Ex | 1,330 | .00 | 0 |
| 2025-07-01 | Liu Liang Chiu-chu Sara | Option Ex | 1,330 | .00 | 0 |
| 2025-07-01 | Liaw Yih-shyan Wally (Director) | Option Ex | 1,393 | .00 | 0 |
| 2025-06-30 | Angel Scott (Director) | Option Ex | 1,672 | .00 | 0 |
| 2025-06-30 | Mogensen Susan (Director) | Option Ex | 2,960 | .00 | 0 |
| 2025-06-30 | Lin Judy L. (Director) | Option Ex | 1,580 | .00 | 0 |
| 2025-06-30 | Liu Tally C (Director) | Option Ex | 1,580 | .00 | 0 |
| 2025-06-30 | Blair Robert L (Director) | Option Ex | 1,580 | .00 | 0 |
| 2025-06-30 | Tuan Sherman (Director) | Option Ex | 3,160 | .00 | 0 |
| 2025-06-18 | Liang Charles (President and CEO) | Sale | 300,000 | 45.00 | 13,500,000 |
| 2025-06-18 | Liu Liang Chiu-chu Sara | Sale | 300,000 | 45.00 | 13,500,000 |
| 2025-05-20 | Weigand David E (SVP, Chief Financial Officer) | Sale | 67,000 | 44.02 | 2,949,474 |
| 2025-05-14 | Kao George (SVP, OPERATIONS) | Sale | 28,400 | 45.86 | 1,302,424 |
| 2025-05-14 | Kao George (SVP, OPERATIONS) | Option Ex | 28,400 | 2.69 | 76,538 |
| 2025-05-14 | Liang Charles (President and CEO) | Sale | 200,000 | 44.77 | 8,954,200 |
| 2025-05-14 | Liu Liang Chiu-chu Sara | Sale | 200,000 | 45.27 | 9,054,200 |
| 2025-05-10 | Kao George (SVP, OPERATIONS) | Option Ex | 1,830 | .00 | 0 |
| 2025-05-10 | Clegg Don W (SVP, Worldwide Sales) | Option Ex | 6,170 | .00 | 0 |
| 2025-05-10 | Cheung Kenneth (SVP, Chief Accounting Officer) | Option Ex | 2,870 | .00 | 0 |
| 2025-05-10 | Liang Charles (President and CEO) | Option Ex | 4,490 | .00 | 0 |
| 2025-05-10 | Liu Liang Chiu-chu Sara | Option Ex | 4,490 | .00 | 0 |
| 2025-05-10 | Liaw Yih-shyan Wally (Director) | Option Ex | 8,750 | .00 | 0 |
| 2025-02-28 | Blair Robert L (Director) | Sale | 19,460 | 42.66 | 830,066 |
| 2025-02-28 | Blair Robert L (Director) | Option Ex | 13,600 | 26.25 | 357,000 |
| 2025-02-26 | Kao George (SVP, OPERATIONS) | Sale | 71,720 | 50.48 | 3,620,712 |
| 2025-02-26 | Liang Charles (President and CEO) | Sale | 46,293 | 50.17 | 2,322,566 |
| 2025-02-26 | Liu Liang Chiu-chu Sara | Sale | 46,293 | 50.17 | 2,322,566 |
| 2025-02-10 | Weigand David E (SVP, Chief Financial Officer) | Option Ex | 2,670 | .00 | 0 |
| 2025-02-10 | Kao George (SVP, OPERATIONS) | Option Ex | 1,830 | .00 | 0 |
| 2025-02-10 | Clegg Don W (SVP, Worldwide Sales) | Option Ex | 1,020 | .00 | 0 |
| 2025-02-10 | Cheung Kenneth (SVP, Chief Accounting Officer) | Option Ex | 4,985 | .00 | 0 |
| 2025-02-10 | Liaw Yih-shyan Wally (Director) | Option Ex | 8,750 | .00 | 0 |
| 2024-12-06 | Liu Tally C (Director) | Option Ex | 860 | .00 | 0 |
| 2024-11-10 | Weigand David E (SVP, Chief Financial Officer) | Option Ex | 2,680 | .00 | 0 |
| 2024-11-10 | Kao George (SVP, OPERATIONS) | Option Ex | 3,350 | .00 | 0 |
| 2024-11-10 | Clegg Don W (SVP, Worldwide Sales) | Option Ex | 1,020 | .00 | 0 |
| 2024-11-10 | Liang Charles (President and CEO) | Option Ex | 4,470 | .00 | 0 |
| 2024-11-10 | Liu Liang Chiu-chu Sara | Option Ex | 4,470 | .00 | 0 |
| 2024-11-10 | Liaw Yih-shyan Wally (Director) | Option Ex | 8,750 | .00 | 0 |
| 2024-10-30 | Liang Charles (President and CEO) | Option Ex | 1,667,500 | 3.51 | 5,847,922 |
| 2024-10-30 | Liu Liang Chiu-chu Sara | Option Ex | 1,667,500 | 3.51 | 5,847,922 |
| 2024-10-30 | Tuan Sherman (Director) | Option Ex | 25,000 | 3.92 | 97,975 |
| 2024-08-10 | Weigand David E (SVP, Chief Financial Officer) | Option Ex | 267 | .00 | 0 |
| 2024-08-10 | Kao George (SVP, OPERATIONS) | Option Ex | 335 | .00 | 0 |
| 2024-08-10 | Clegg Don W (SVP, Worldwide Sales) | Option Ex | 102 | .00 | 0 |
| 2024-08-10 | Liang Charles (President and CEO) | Option Ex | 447 | .00 | 0 |
| 2024-08-10 | Liu Liang Chiu-chu Sara | Option Ex | 447 | .00 | 0 |
| 2024-08-10 | Liaw Yih-shyan Wally (Director) | Option Ex | 875 | .00 | 0 |
| 2024-07-01 | Liu Liang Chiu-chu Sara | Option Ex | 82 | .00 | 0 |
| 2024-06-03 | Fairfax Daniel W (Director) | Sale | 300 | 802.00 | 240,600 |
| 2024-05-30 | Liu Tally C (Director) | Sale | 500 | 839.17 | 419,585 |
| 2024-05-10 | Weigand David E (SVP, Chief Financial Officer) | Option Ex | 1,592 | .00 | 0 |
| 2024-05-10 | Kao George (SVP, OPERATIONS) | Option Ex | 335 | .00 | 0 |
| 2024-05-10 | Clegg Don W (SVP, Worldwide Sales) | Option Ex | 314 | .00 | 0 |
| 2024-05-10 | Liang Charles (President and CEO) | Option Ex | 1,082 | .00 | 0 |
| 2024-05-10 | Liu Liang Chiu-chu Sara | Option Ex | 1,082 | .00 | 0 |
| 2024-05-10 | Liaw Yih-shyan Wally (Director) | Option Ex | 875 | .00 | 0 |
| 2024-05-01 | Fairfax Daniel W (Director) | Sale | 300 | 777.36 | 233,208 |
| 2024-04-29 | Liang Charles (President and CEO) | Sale | 525 | 866.92 | 455,132 |
| 2024-04-29 | Liang Charles (President and CEO) | Option Ex | 525 | 42.35 | 22,233 |
| 2024-04-29 | Liu Liang Chiu-chu Sara | Sale | 525 | 866.92 | 455,132 |
| 2024-04-29 | Liu Liang Chiu-chu Sara | Option Ex | 525 | 42.35 | 22,233 |
| 2024-04-01 | Fairfax Daniel W (Director) | Sale | 300 | 1,010.00 | 303,000 |
| 2024-02-15 | Weigand David E (SVP, Chief Financial Officer) | Option Ex | 1,000 | .00 | 0 |
| 2024-02-15 | Kao George (SVP, OPERATIONS) | Sale | 1,884 | 993.00 | 1,870,812 |
| 2024-02-15 | Kao George (SVP, OPERATIONS) | Option Ex | 500 | .00 | 0 |
| 2024-02-15 | Clegg Don W (SVP, Worldwide Sales) | Option Ex | 500 | .00 | 0 |
| 2024-02-15 | Liang Charles (President and CEO) | Option Ex | 900 | .00 | 0 |
| 2024-02-15 | Liu Liang Chiu-chu Sara | Option Ex | 900 | .00 | 0 |
| 2024-02-15 | Liaw Yih-shyan Wally (Director) | Option Ex | 500 | .00 | 0 |
| 2024-02-14 | Clegg Don W (SVP, Worldwide Sales) | Sale | 28,727 | 874.07 | 25,109,293 |
| 2024-02-14 | Clegg Don W (SVP, Worldwide Sales) | Option Ex | 28,000 | 24.32 | 681,044 |
| 2024-02-10 | Clegg Don W (SVP, Worldwide Sales) | Option Ex | 313 | .00 | 0 |
| 2024-02-10 | Liaw Yih-shyan Wally (Director) | Option Ex | 875 | .00 | 0 |
| 2024-02-05 | Kao George (SVP, OPERATIONS) | Sale | 1,608 | 649.85 | 1,044,958 |
| 2024-02-05 | Kao George (SVP, OPERATIONS) | Option Ex | 4,200 | 23.74 | 99,708 |
| 2024-02-01 | Fairfax Daniel W (Director) | Sale | 300 | 540.00 | 162,000 |
| 2024-02-01 | Chan Shiu Leung (Director) | Buy | 2,000 | 568.00 | 1,136,000 |
| 2024-01-29 | Liang Charles (President and CEO) | Sale | 962 | 476.10 | 458,008 |
| 2024-01-29 | Liang Charles (President and CEO) | Option Ex | 962 | 37.86 | 36,418 |
| 2024-01-29 | Liu Liang Chiu-chu Sara | Sale | 962 | 476.10 | 458,008 |
| 2024-01-29 | Liu Liang Chiu-chu Sara | Option Ex | 962 | 37.86 | 36,418 |
| 2023-12-05 | Weigand David E (SVP, Chief Financial Officer) | Sale | 20,000 | 252.18 | 5,043,500 |
| 2023-12-05 | Liang Charles (President and CEO) | Sale | 50,000 | 252.18 | 12,608,750 |
| 2023-12-05 | Liu Liang Chiu-chu Sara | Sale | 50,000 | 252.18 | 12,608,750 |
| 2023-12-05 | Blair Robert L (Director) | Sale | 800 | 252.18 | 201,740 |
| 2023-12-05 | Tuan Sherman (Director) | Sale | 500 | 252.18 | 126,087 |
| 2023-12-01 | Weigand David E (SVP, Chief Financial Officer) | Sale | 21,550 | 268.11 | 5,777,770 |
| 2023-12-01 | Weigand David E (SVP, Chief Financial Officer) | Option Ex | 38,865 | 82.59 | 3,209,782 |
| 2023-12-01 | Fairfax Daniel W (Director) | Sale | 300 | 262.49 | 78,747 |
| 2023-11-10 | Kao George (SVP, OPERATIONS) | Option Ex | 884 | .00 | 0 |
| 2023-11-09 | Kao George (SVP, OPERATIONS) | Sale | 3,747 | 275.75 | 1,033,253 |
| 2023-11-09 | Kao George (SVP, OPERATIONS) | Option Ex | 2,972 | 13.00 | 38,636 |
| 2023-11-06 | Weigand David E (SVP, Chief Financial Officer) | Sale | 16,072 | 249.95 | 4,017,212 |
| 2023-11-06 | Weigand David E (SVP, Chief Financial Officer) | Option Ex | 16,072 | 22.10 | 355,191 |
| 2023-10-27 | Liang Charles (President and CEO) | Sale | 961 | 243.62 | 234,117 |
| 2023-10-27 | Liang Charles (President and CEO) | Option Ex | 961 | 37.86 | 36,380 |
| 2023-10-27 | Liu Liang Chiu-chu Sara | Sale | 961 | 243.62 | 234,117 |
| 2023-10-27 | Liu Liang Chiu-chu Sara | Option Ex | 961 | 37.86 | 36,380 |
| 2023-08-31 | Kao George (SVP, OPERATIONS) | Sale | 2,968 | 280.79 | 833,396 |
| 2023-08-31 | Kao George (SVP, OPERATIONS) | Option Ex | 2,968 | 13.00 | 38,584 |
| 2023-08-30 | Tuan Sherman (Director) | Sale | 1,000 | 272.00 | 272,000 |
| 2023-08-15 | Kao George (SVP, OPERATIONS) | Option Ex | 500 | .00 | 0 |
| 2023-08-14 | Kao George (SVP, OPERATIONS) | Sale | 5,160 | 269.99 | 1,393,132 |
| 2023-08-14 | Kao George (SVP, OPERATIONS) | Option Ex | 5,160 | 26.95 | 139,062 |
| 2023-08-11 | Chan Shiu Leung (Director) | Buy | 4,000 | 265.57 | 1,062,280 |
| 2023-08-10 | Weigand David E (SVP, Chief Financial Officer) | Option Ex | 1,590 | .00 | 0 |
| 2023-08-10 | Kao George (SVP, OPERATIONS) | Option Ex | 152 | .00 | 0 |
| 2023-08-10 | Clegg Don W (SVP, Worldwide Sales) | Option Ex | 312 | .00 | 0 |
| 2023-08-10 | Liang Charles (President and CEO) | Option Ex | 433 | .00 | 0 |
| 2023-08-10 | Liu Liang Chiu-chu Sara | Option Ex | 433 | .00 | 0 |
| 2023-07-27 | Liang Charles (President and CEO) | Sale | 963 | 329.06 | 316,879 |
| 2023-07-27 | Liang Charles (President and CEO) | Option Ex | 963 | 37.86 | 36,456 |
| 2023-07-27 | Liu Liang Chiu-chu Sara | Sale | 963 | 329.06 | 316,879 |
| 2023-07-27 | Liu Liang Chiu-chu Sara | Option Ex | 963 | 37.86 | 36,456 |
| 2023-06-30 | Lin Judy L. (Director) | Option Ex | 3,917 | .00 | 0 |
| 2023-06-30 | Fairfax Daniel W (Director) | Option Ex | 3,917 | .00 | 0 |
| 2023-06-30 | Liu Tally C (Director) | Option Ex | 3,917 | .00 | 0 |
| 2023-06-30 | Chan Shiu Leung (Director) | Option Ex | 3,917 | .00 | 0 |
| 2023-06-30 | Tuan Sherman (Director) | Option Ex | 3,917 | .00 | 0 |
| 2023-06-01 | Liang Charles (President and CEO) | Sale | 43,932 | 226.45 | 9,948,313 |
| 2023-06-01 | Liang Charles (President and CEO) | Option Ex | 41,881 | 30.24 | 1,266,397 |
| 2023-06-01 | Liu Liang Chiu-chu Sara | Sale | 43,932 | 225.54 | 9,908,379 |
| 2023-06-01 | Liu Liang Chiu-chu Sara | Option Ex | 41,881 | 30.24 | 1,266,397 |
| 2023-05-30 | Clegg Don W (SVP, Worldwide Sales) | Sale | 16,514 | 232.40 | 3,837,820 |
| 2023-05-30 | Clegg Don W (SVP, Worldwide Sales) | Option Ex | 8,000 | 23.64 | 189,160 |
| 2023-05-11 | Kao George (SVP, OPERATIONS) | Sale | 553 | 135.19 | 74,757 |
| 2023-05-11 | Chan Shiu Leung | Buy | 3,000 | 133.88 | 401,640 |
| 2023-05-10 | Weigand David E (SVP, Chief Financial Officer) | Option Ex | 2,393 | .00 | 0 |
| 2023-05-10 | Kao George (SVP, OPERATIONS) | Option Ex | 152 | .00 | 0 |
| 2023-05-10 | Clegg Don W (SVP, Worldwide Sales) | Option Ex | 619 | .00 | 0 |
| 2023-05-10 | Liang Charles (President and CEO) | Option Ex | 434 | .00 | 0 |
| 2023-05-10 | Liu Liang Chiu-chu Sara | Option Ex | 434 | .00 | 0 |
| 2023-05-10 | Chan Shiu Leung | Buy | 1,000 | 133.09 | 133,090 |
| 2023-03-25 | Weigand David E (SVP, Chief Financial Officer) | Option Ex | 500 | .00 | 0 |
| 2023-03-25 | Kao George (SVP, OPERATIONS) | Option Ex | 750 | .00 | 0 |
Insider trading activities including stock purchases, stock sales, and option exercises of SMCI listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Super Micro Computer, Inc. (symbol SMCI, CIK number 1375365) see the Securities and Exchange Commission (SEC) website.