PSIX

SEC source: 0001213900-25-077423 · ownership.xml · nonDerivative · entry 8

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,472,704

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $93.14 to $93.955, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F13 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0001213900-25-077423 · ownership.xml · nonDerivative · entry 7

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,479,991

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.27 to $92.995, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F13 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0001213900-25-077423 · ownership.xml · nonDerivative · entry 6

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,486,511

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $91.00 to $91.94, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F13 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0001213900-25-077423 · ownership.xml · nonDerivative · entry 5

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,506,363

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $90.00 to $90.95, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F13 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0001213900-25-077423 · ownership.xml · nonDerivative · entry 4

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,528,014

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $89.00 to $89.99, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F13 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0001213900-25-077423 · ownership.xml · nonDerivative · entry 3

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,554,410

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $88.00 to $88.99, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F13 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0001213900-25-077423 · ownership.xml · nonDerivative · entry 2

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,593,051

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.00 to $87.9975, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F13 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0001213900-25-077423 · ownership.xml · nonDerivative · entry 1

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,622,462

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $86.09 to $86.99, inclusive. The Reporting Persons (as defined below) undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F13 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0000950170-25-109299 · ownership.xml · nonDerivative · entry 1

He Hong · CIK 0001791581 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,250

SEC source: 0000950170-25-109121 · ownership.xml · derivative · entry 3

Li Xun · CIK 0001944401 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,000

Underlying: Common Stock · 15,000 shares

Expires 2032-09-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The SAR vests and becomes exercisable in two equal installments on each of September 2, 2025 and September 2, 2026.

F2 · derivative.underlying_shares: The SAR vests and becomes exercisable in two equal installments on each of September 2, 2025 and September 2, 2026.

SEC source: 0000950170-25-109121 · ownership.xml · nonDerivative · entry 2

Li Xun · CIK 0001944401 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,221

F1 · kind: The reporting person received 8,221 shares of common stock upon the net exercise of 15,000 stock appreciation rights ("SARs"). A total of 6,779 shares of common stock underlying such SARs were withheld in payment of the exercise price and to satisfy the withholding tax obligation resulting from the exercise.

SEC source: 0000950170-25-109121 · ownership.xml · nonDerivative · entry 1

Li Xun · CIK 0001944401 · CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001213900-25-076588 · ownership.xml · nonDerivative · entry 11

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,625,937

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F12 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0001213900-25-076588 · ownership.xml · nonDerivative · entry 10

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,625,995

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F11 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $96.00 to $96.89, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F12 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0001213900-25-076588 · ownership.xml · nonDerivative · entry 9

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,635,171

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $95.00 to $95.9975, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F12 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0001213900-25-076588 · ownership.xml · nonDerivative · entry 8

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,681,998

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $94.00 to $94.995, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F12 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0001213900-25-076588 · ownership.xml · nonDerivative · entry 7

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,697,836

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $93.005 to $93.98, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F12 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0001213900-25-076588 · ownership.xml · nonDerivative · entry 6

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,710,272

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.00 to $92.98, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F12 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0001213900-25-076588 · ownership.xml · nonDerivative · entry 5

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,722,923

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $91.11 to $91.97, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F12 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0001213900-25-076588 · ownership.xml · nonDerivative · entry 4

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,733,541

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $90.00 to $90.99, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F12 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0001213900-25-076588 · ownership.xml · nonDerivative · entry 3

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,742,058

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $89.03 to $89.95, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F12 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0001213900-25-076588 · ownership.xml · nonDerivative · entry 2

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,743,407

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $88.00 to $88.965, inclusive. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F12 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0001213900-25-076588 · ownership.xml · nonDerivative · entry 1

Weichai America Corp. · CIK 0001702521 · 10% owner

Weichai Power Co., Ltd. · CIK 0001703367 · 10% owner

Shandong Heavy Industry Group Co., Ltd. · CIK 0001703252 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Explanation of Responses

Disclosed balance after: 11,749,281

F1 · kind: These transactions occurred pursuant to broker-dealer sales conducted in accordance with Rule 144 under the Securities Act of 1933, as amended.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $87.83 to $87.89, inclusive. The Reporting Persons (as defined below) undertake to provide the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth in this footnote.

F12 · ownership.nature: This report is filed jointly by Weichai America Corp., Weichai Power Co., Ltd. and Shandong Heavy Industry Group Co., Ltd. (collectively, the "Reporting Persons"). Weichai America Corp. is the direct owner of the Common Stock referenced in this report and shares the power to vote and the power to dispose of all of such shares of Common Stock with the other Reporting Persons. No individual has beneficial ownership over the Common Stock beneficially owned by the Reporting Persons.

SEC source: 0000950170-25-108533 · ownership.xml · nonDerivative · entry 6

SIMPKINS FRANK P · CIK 0001353839 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,000

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $96.00 to $96.62. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000950170-25-108533 · ownership.xml · nonDerivative · entry 5

SIMPKINS FRANK P · CIK 0001353839 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,206

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $95.00 to $95.99. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000950170-25-108533 · ownership.xml · nonDerivative · entry 4

SIMPKINS FRANK P · CIK 0001353839 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,314

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $94.00 to $94.98. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000950170-25-108533 · ownership.xml · nonDerivative · entry 3

SIMPKINS FRANK P · CIK 0001353839 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,226

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $93.10 to $93.99. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000950170-25-108533 · ownership.xml · nonDerivative · entry 2

SIMPKINS FRANK P · CIK 0001353839 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,508

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.22 to $92.99. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000950170-25-108533 · ownership.xml · nonDerivative · entry 1

SIMPKINS FRANK P · CIK 0001353839 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,892

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $91.66 to $91.85. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000950170-25-108632 · ownership.xml · nonDerivative · entry 2

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,854

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $96.01 to $96.50. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000950170-25-108632 · ownership.xml · nonDerivative · entry 1

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,881

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $95.02 to $95.78. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0000950170-25-097650 · ownership.xml · derivative · entry 3

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,334

Underlying: Common Stock · 14,996 shares

Expires 2033-04-25

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · date: The reporting person exercised 14,996 stock appreciation rights ("SARs") pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

F1 · derivative.underlying_shares: The reporting person exercised 14,996 stock appreciation rights ("SARs") pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0000950170-25-097650 · ownership.xml · nonDerivative · entry 2

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,859

F1 · shares: The reporting person exercised 14,996 stock appreciation rights ("SARs") pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0000950170-25-097650 · ownership.xml · nonDerivative · entry 1

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,855

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: The reporting person exercised 14,996 stock appreciation rights ("SARs") pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0000950170-25-085807 · ownership.xml · derivative · entry 3

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,330

Underlying: Common Stock · 35,000 shares

Expires 2033-04-25

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · date: The reporting person exercised 35,000 stock appreciation rights ("SARs") pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

F1 · derivative.underlying_shares: The reporting person exercised 35,000 stock appreciation rights ("SARs") pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0000950170-25-085807 · ownership.xml · nonDerivative · entry 2

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,859

F1 · shares: The reporting person exercised 35,000 stock appreciation rights ("SARs") pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0000950170-25-085807 · ownership.xml · nonDerivative · entry 1

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,859

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: The reporting person exercised 35,000 stock appreciation rights ("SARs") pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0000950170-25-081790 · ownership.xml · derivative · entry 6

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,330

Underlying: Common Stock · 6,670 shares

Expires 2033-04-25

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · date: The reporting person exercised 6,670 SARs pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

F2 · derivative.underlying_shares: The reporting person exercised 6,670 SARs pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0000950170-25-081790 · ownership.xml · derivative · entry 5

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,663 shares

Expires 2033-04-25

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · date: The reporting person exercised 16,663 stock appreciation rights ("SARs") pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

F1 · derivative.underlying_shares: The reporting person exercised 16,663 stock appreciation rights ("SARs") pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0000950170-25-081790 · ownership.xml · nonDerivative · entry 4

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,859

F2 · shares: The reporting person exercised 6,670 SARs pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0000950170-25-081790 · ownership.xml · nonDerivative · entry 3

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,529

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: The reporting person exercised 6,670 SARs pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0000950170-25-081790 · ownership.xml · nonDerivative · entry 2

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,859

F1 · shares: The reporting person exercised 16,663 stock appreciation rights ("SARs") pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0000950170-25-081790 · ownership.xml · nonDerivative · entry 1

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,522

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: The reporting person exercised 16,663 stock appreciation rights ("SARs") pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0000950170-25-085255 · ownership.xml · derivative · entry 6

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,330

Underlying: Common Stock · 6,670 shares

Expires 2033-04-25

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · date: The reporting person exercised 6,670 SARs pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

F2 · derivative.underlying_shares: The reporting person exercised 6,670 SARs pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0000950170-25-085255 · ownership.xml · derivative · entry 5

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 16,663 shares

Expires 2033-04-25

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · date: The reporting person exercised 16,663 stock appreciation rights ("SARs") pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

F1 · derivative.underlying_shares: The reporting person exercised 16,663 stock appreciation rights ("SARs") pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0000950170-25-085255 · ownership.xml · nonDerivative · entry 4

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,859

F2 · shares: The reporting person exercised 6,670 SARs pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0000950170-25-085255 · ownership.xml · nonDerivative · entry 3

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,529

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: The reporting person exercised 6,670 SARs pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0000950170-25-085255 · ownership.xml · nonDerivative · entry 2

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,859

F1 · shares: The reporting person exercised 16,663 stock appreciation rights ("SARs") pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0000950170-25-085255 · ownership.xml · nonDerivative · entry 1

Xykis Constantine · CIK 0001852699 · CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,522

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: The reporting person exercised 16,663 stock appreciation rights ("SARs") pursuant to a Stock Appreciation Rights Agreement dated April 25, 2023. Such SARs were settled in cash.

SEC source: 0001641172-25-005856 · ownership.xml · nonDerivative · entry 1

Winemaster Gary S · CIK 0001517040 · former 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,184,109