Only open-market buys / sells (codes P/S) are a conviction signal; grants, option exercises, tax-withholding, and gifts are compensation mechanics, shown but greyed. The trailing 12-month tallies run to today but the store covers filings through 2026-06-30 only (SEC bulk data sets publish quarterly), so recent activity may be absent.
| Date | Insider | Role | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-02-12 | Li Xun | Officer | −Tax w/h | 3,429 | $92.72 | $317,937 |
| 2026-02-12 | Li Xun | Officer | +Exercise | 7,500 | $2.00 | $15,000 |
| 2025-12-11 | Shea Courtney C. | Director | +Grant | 5,000 | — | — |
| 2025-12-11 | SIMPKINS FRANK P | Director | +Grant | 5,000 | — | — |
| 2025-12-11 | He Hong | Director | +Grant | 5,000 | — | — |
| 2025-09-11 | He Hong | Director | −Sell | 1,500 | $94.00 | $141,000 |
| 2025-09-11 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 30,519 | $94.33 | $3M |
| 2025-09-11 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 6,738 | $91.72 | $618,009 |
| 2025-09-11 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 19,351 | $92.46 | $2M |
| 2025-09-11 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 23,231 | $93.64 | $2M |
| 2025-09-10 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 5,018 | $91.44 | $458,846 |
| 2025-09-10 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 6,308 | $90.28 | $569,486 |
| 2025-09-10 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 14,557 | $92.34 | $1M |
| 2025-09-10 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 2,515 | $93.50 | $235,153 |
| 2025-09-10 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 7,585 | $94.45 | $716,403 |
| 2025-09-10 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 571 | $95.20 | $54,359 |
| 2025-09-10 | He Hong | Director | −Sell | 1,000 | $95.00 | $95,000 |
| 2025-09-09 | He Hong | Director | −Sell | 2,500 | $92.31 | $230,775 |
| 2025-09-09 | He Hong | Director | −Sell | 1,500 | $90.00 | $135,000 |
| 2025-09-09 | Xykis Constantine | Officer | −Sell | 7,854 | $91.31 | $717,149 |
| 2025-09-08 | He Hong | Director | −Sell | 1,000 | $89.00 | $89,000 |
| 2025-08-26 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 2,093 | $85.81 | $179,600 |
| 2025-08-26 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 13,548 | $80.66 | $1M |
| 2025-08-26 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 21,925 | $81.57 | $2M |
| 2025-08-26 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 178 | $89.00 | $15,842 |
| 2025-08-26 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 3,385 | $88.35 | $299,065 |
| 2025-08-26 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 2,676 | $87.52 | $234,204 |
| 2025-08-26 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 11,295 | $86.74 | $979,728 |
| 2025-08-26 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 9,949 | $84.35 | $839,198 |
| 2025-08-26 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 11,923 | $83.46 | $995,094 |
| 2025-08-26 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 17,075 | $82.49 | $1M |
| 2025-08-25 | Li Xun | Officer | −Sell | 3,600 | $91.60 | $329,760 |
| 2025-08-25 | Li Xun | Officer | −Sell | 600 | $93.20 | $55,920 |
| 2025-08-25 | Li Xun | Officer | −Sell | 200 | $93.30 | $18,660 |
| 2025-08-25 | Li Xun | Officer | +Buy | 300 | $92.82 | $27,846 |
| 2025-08-25 | Li Xun | Officer | −Sell | 3,600 | $92.93 | $334,548 |
| 2025-08-25 | SIMPKINS FRANK P | Director | −Sell | 10,000 | $91.64 | $916,400 |
| 2025-08-25 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 12,283 | $91.63 | $1M |
| 2025-08-25 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 8,102 | $89.48 | $724,967 |
| 2025-08-25 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 6,948 | $88.78 | $616,843 |
| 2025-08-25 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 9,003 | $90.38 | $813,691 |
| 2025-08-25 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 3,695 | $93.18 | $344,300 |
| 2025-08-25 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 11,395 | $92.56 | $1M |
| 2025-08-22 | Weichai America Corp. | TenPercentOwner | −Sell | 3,720 | $82.45 | $306,714 |
| 2025-08-22 | Weichai America Corp. | TenPercentOwner | −Sell | 3,308 | $81.57 | $269,834 |
| 2025-08-22 | Weichai America Corp. | TenPercentOwner | −Sell | 3,921 | $83.60 | $327,796 |
| 2025-08-22 | Weichai America Corp. | TenPercentOwner | −Sell | 1,665 | $84.74 | $141,092 |
| 2025-08-22 | Weichai America Corp. | TenPercentOwner | −Sell | 4,521 | $85.40 | $386,093 |
| 2025-08-22 | Weichai America Corp. | TenPercentOwner | −Sell | 3,979 | $86.34 | $343,547 |
| 2025-08-22 | Weichai America Corp. | TenPercentOwner | −Sell | 13,323 | $91.20 | $1M |
| 2025-08-22 | Weichai America Corp. | TenPercentOwner | −Sell | 19,228 | $90.52 | $2M |
| 2025-08-22 | Weichai America Corp. | TenPercentOwner | −Sell | 11,263 | $89.52 | $1M |
| 2025-08-22 | Weichai America Corp. | TenPercentOwner | −Sell | 9,988 | $88.46 | $883,538 |
| 2025-08-22 | Weichai America Corp. | TenPercentOwner | −Sell | 12,294 | $87.57 | $1M |
| 2025-08-21 | Weichai America Corp. | TenPercentOwner | −Sell | 20,729 | $82.46 | $2M |
| 2025-08-21 | Weichai America Corp. | TenPercentOwner | −Sell | 2,647 | $80.41 | $212,845 |
| 2025-08-21 | Weichai America Corp. | TenPercentOwner | −Sell | 11,512 | $81.70 | $940,530 |
| 2025-08-21 | Weichai America Corp. | TenPercentOwner | −Sell | 7,426 | $83.26 | $618,289 |
| 2025-08-20 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 5 | $81.00 | $405 |
| 2025-08-20 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 15,797 | $80.50 | $1M |
| 2025-08-19 | Weichai America Corp. | TenPercentOwner | −Sell | 12,209 | $82.59 | $1M |
| 2025-08-19 | Weichai America Corp. | TenPercentOwner | −Sell | 1,385 | $84.32 | $116,783 |
| 2025-08-19 | Weichai America Corp. | TenPercentOwner | −Sell | 45,821 | $80.24 | $4M |
| 2025-08-19 | Weichai America Corp. | TenPercentOwner | −Sell | 17,263 | $81.57 | $1M |
| 2025-08-19 | Weichai America Corp. | TenPercentOwner | −Sell | 2,992 | $83.45 | $249,682 |
| 2025-08-18 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 11,406 | $85.73 | $977,836 |
| 2025-08-18 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 16,215 | $80.43 | $1M |
| 2025-08-18 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 5,854 | $89.16 | $521,943 |
| 2025-08-18 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 12,303 | $88.32 | $1M |
| 2025-08-18 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 21,314 | $87.45 | $2M |
| 2025-08-18 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 21,447 | $86.53 | $2M |
| 2025-08-18 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 7,049 | $84.31 | $594,301 |
| 2025-08-18 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 5,376 | $83.35 | $448,090 |
| 2025-08-18 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 14,670 | $82.52 | $1M |
| 2025-08-18 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 9,586 | $81.57 | $781,930 |
| 2025-08-15 | Weichai America Corp. | TenPercentOwner | −Sell | 486 | $86.05 | $41,820 |
| 2025-08-15 | Weichai America Corp. | TenPercentOwner | −Sell | 20,770 | $80.41 | $2M |
| 2025-08-15 | Weichai America Corp. | TenPercentOwner | −Sell | 16,255 | $81.43 | $1M |
| 2025-08-15 | Weichai America Corp. | TenPercentOwner | −Sell | 22,153 | $85.60 | $2M |
| 2025-08-15 | Weichai America Corp. | TenPercentOwner | −Sell | 22,858 | $84.56 | $2M |
| 2025-08-15 | Weichai America Corp. | TenPercentOwner | −Sell | 18,371 | $83.51 | $2M |
| 2025-08-15 | Weichai America Corp. | TenPercentOwner | −Sell | 15,244 | $82.59 | $1M |
| 2025-08-14 | Weichai America Corp. | TenPercentOwner | −Sell | 8,834 | $87.64 | $774,212 |
| 2025-08-14 | Weichai America Corp. | TenPercentOwner | −Sell | 14,386 | $86.45 | $1M |
| 2025-08-14 | Weichai America Corp. | TenPercentOwner | −Sell | 10,485 | $85.63 | $897,831 |
| 2025-08-14 | Weichai America Corp. | TenPercentOwner | −Sell | 12,430 | $84.37 | $1M |
| 2025-08-14 | Weichai America Corp. | TenPercentOwner | −Sell | 30,760 | $83.50 | $3M |
| 2025-08-14 | Weichai America Corp. | TenPercentOwner | −Sell | 255 | $90.24 | $23,011 |
| 2025-08-14 | Weichai America Corp. | TenPercentOwner | −Sell | 7,136 | $81.80 | $583,725 |
| 2025-08-14 | Weichai America Corp. | TenPercentOwner | −Sell | 13,929 | $88.34 | $1M |
| 2025-08-14 | Weichai America Corp. | TenPercentOwner | −Sell | 9,312 | $89.33 | $831,841 |
| 2025-08-14 | Weichai America Corp. | TenPercentOwner | −Sell | 28,319 | $82.68 | $2M |
| 2025-08-13 | He Hong | Director | −Sell | 2,500 | $90.03 | $225,075 |
| 2025-08-13 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 197 | $96.20 | $18,951 |
| 2025-08-13 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 7,582 | $95.42 | $723,474 |
| 2025-08-13 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 1,101 | $94.49 | $104,033 |
| 2025-08-13 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 7,287 | $93.55 | $681,699 |
| 2025-08-13 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 6,520 | $92.58 | $603,622 |
| 2025-08-13 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 19,852 | $91.28 | $2M |
| 2025-08-13 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 21,651 | $90.45 | $2M |
| 2025-08-13 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 26,396 | $89.48 | $2M |
| 2025-08-13 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 38,641 | $88.50 | $3M |
| 2025-08-13 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 29,411 | $87.64 | $3M |
| 2025-08-13 | Weichai Power Co., Ltd. | TenPercentOwner | −Sell | 3,475 | $86.63 | $301,039 |
| 2025-08-12 | SIMPKINS FRANK P | Director | −Sell | 282 | $93.68 | $26,418 |
| 2025-08-12 | SIMPKINS FRANK P | Director | −Sell | 108 | $91.74 | $9,908 |
| 2025-08-12 | SIMPKINS FRANK P | Director | −Sell | 384 | $92.52 | $35,528 |
| 2025-08-12 | SIMPKINS FRANK P | Director | −Sell | 912 | $94.46 | $86,148 |
| 2025-08-12 | SIMPKINS FRANK P | Director | −Sell | 3,108 | $95.46 | $296,690 |
| 2025-08-12 | SIMPKINS FRANK P | Director | −Sell | 206 | $96.21 | $19,819 |
| 2025-08-12 | Xykis Constantine | Officer | −Sell | 13,027 | $96.20 | $1M |
| 2025-08-12 | Xykis Constantine | Officer | −Sell | 12,978 | $95.50 | $1M |
| 2025-08-12 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 9,176 | $96.19 | $882,639 |
| 2025-08-12 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 1,349 | $89.34 | $120,520 |
| 2025-08-12 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 5,874 | $88.48 | $519,732 |
| 2025-08-12 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 478 | $87.88 | $42,007 |
| 2025-08-12 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 58 | $97.02 | $5,627 |
| 2025-08-12 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 8,517 | $90.28 | $768,915 |
| 2025-08-12 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 46,827 | $95.52 | $4M |
| 2025-08-12 | Shandong Heavy Industry Group Co., Ltd. | TenPercentOwner | −Sell | 15,838 | $94.47 | $1M |
Source: the SEC bulk insider (Form 3/4/5) data sets — non-derivative transactions in the issuer's common stock, most recent first, covering filings through 2026-06-30. Insiders file within 2 business days of a transaction, but the bulk sets publish quarterly, so this store lags live filings; option/derivative lines are excluded. Codes: P buy · S sell · A grant · M/X/C exercise · F tax · G gift.
Model-derived estimate for research. See the Disclaimer.
