IPGP

SEC source: 0001111928-25-000180 · wk-form4_1764112631.xml · nonDerivative · entry 2

Agnes Tang · CIK 0001919257 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,663

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 26, 2025.

SEC source: 0001111928-25-000180 · wk-form4_1764112631.xml · nonDerivative · entry 1

Agnes Tang · CIK 0001919257 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,763

F2 · price: The reported transaction involves sale transactions ranging from $76.02 to $76.96 per share. The weighted average price per share was $76.72. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 26, 2025.

SEC source: 0001111928-25-000178 · wk-form4_1764112594.xml · nonDerivative · entry 2

SCHERBAKOV EUGENE A · CIK 0001378544 · Director · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 64,730

F3 · price: The reported transaction involves sale transactions ranging from $75.98 to $76.42 per share. The weighted average price per share was $76.32. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000178 · wk-form4_1764112594.xml · nonDerivative · entry 1

SCHERBAKOV EUGENE A · CIK 0001378544 · Director · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 66,675

F2 · price: The reported transaction involves sale transactions ranging from $74.84 to $75.65 per share. The weighted average price per share was $75.30. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000176 · wk-form4_1764112560.xml · nonDerivative · entry 6

IP FIBRE DEVICES LTD · CIK 0001130423 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,721,503

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000176 · wk-form4_1764112560.xml · nonDerivative · entry 5

IP FIBRE DEVICES LTD · CIK 0001130423 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,721,515

F6 · price: The reported transaction involves sale transactions ranging from $75.98 to $76.97 per share. The weighted average price per share was $76.44. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000176 · wk-form4_1764112560.xml · nonDerivative · entry 4

IP FIBRE DEVICES LTD · CIK 0001130423 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,751,861

F5 · price: The reported transaction involves sale transactions ranging from $74.98 to $75.97 per share. The weighted average price per share was $75.83. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000176 · wk-form4_1764112560.xml · nonDerivative · entry 3

IP FIBRE DEVICES LTD · CIK 0001130423 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,756,503

F4 · price: The reported transaction involves sale transactions ranging from $74.76 to $75.11 per share. The weighted average price per share was $74.97. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000176 · wk-form4_1764112560.xml · nonDerivative · entry 2

IP FIBRE DEVICES LTD · CIK 0001130423 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,757,648

F3 · price: The reported transaction involves sale transactions ranging from $73.76 to $74.75 per share. The weighted average price per share was $74.65. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000176 · wk-form4_1764112560.xml · nonDerivative · entry 1

IP FIBRE DEVICES LTD · CIK 0001130423 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,777,811

F2 · price: The reported transaction involves sale transactions ranging from $72.72 to $73.51 per share. The weighted average price per share was $73.16. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000174 · wk-form4_1763588617.xml · nonDerivative · entry 1

Ness Trevor · CIK 0001568884 · SVP, Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 37,206

F2 · price: The reported transaction involves sale transactions ranging from $75.21 to $75.86 per share. The weighted average price per share was $75.58. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 28, 2025.

SEC source: 0001111928-25-000172 · wk-form4_1763588524.xml · nonDerivative · entry 5

Valentin Gapontsev Trust I · CIK 0001508155 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,926,099

F6 · price: The reported transaction involves sale transactions ranging from $76.22 to $77.00 per share. The weighted average price per share was $76.45. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000172 · wk-form4_1763588524.xml · nonDerivative · entry 4

Valentin Gapontsev Trust I · CIK 0001508155 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,946,874

F5 · price: The reported transaction involves sale transactions ranging from $75.17 to $76.15 per share. The weighted average price per share was $75.88. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000172 · wk-form4_1763588524.xml · nonDerivative · entry 3

Valentin Gapontsev Trust I · CIK 0001508155 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,974,000

F4 · price: The reported transaction involves sale transactions ranging from $78.98 to $79.60 per share. The weighted average price per share was $79.33. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000172 · wk-form4_1763588524.xml · nonDerivative · entry 2

Valentin Gapontsev Trust I · CIK 0001508155 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,977,815

F3 · price: The reported transaction involves sale transactions ranging from $77.91 to $78.86 per share. The weighted average price per share was $78.50. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000172 · wk-form4_1763588524.xml · nonDerivative · entry 1

Valentin Gapontsev Trust I · CIK 0001508155 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,982,667

F2 · price: The reported transaction involves sale transactions ranging from $76.18 to $77.06 per share. The weighted average price per share was $76.63. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000170 · wk-form4_1762552066.xml · derivative · entry 3

Meurice Eric · CIK 0001372258 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 750

Underlying: Common Stock · 750 shares

Expires 2026-05-31

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: Grant of stock options vesting 100% on earlier of 6/1/2017 or date of 2017 annual stockholder meeting of Issuer.

SEC source: 0001111928-25-000170 · wk-form4_1762552066.xml · nonDerivative · entry 2

Meurice Eric · CIK 0001372258 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,803

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 7, 2025.

SEC source: 0001111928-25-000170 · wk-form4_1762552066.xml · nonDerivative · entry 1

Meurice Eric · CIK 0001372258 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,553

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: 0001111928-25-000161 · wk-form4_1761769329.xml · nonDerivative · entry 1

Lopresti Angelo P · CIK 0001378548 · SVP, Secretary & Gen Counsel · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 61,385

F2 · price: The reported transaction involves sale transactions ranging from $86.64 to $87.59 per share. The weighted average price per share was $87.13. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000159 · wk-form4_1761085721.xml · nonDerivative · entry 2

SCHERBAKOV EUGENE A · CIK 0001378544 · Director · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 67,430

F3 · price: The reported transaction involves sale transactions ranging from $87.85 to $87.89 per share. The weighted average price per share was $87.85. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000159 · wk-form4_1761085721.xml · nonDerivative · entry 1

SCHERBAKOV EUGENE A · CIK 0001378544 · Director · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 67,789

F2 · price: The reported transaction involves sale transactions ranging from $86.85 to $87.82 per share. The weighted average price per share was $87.61. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000157 · wk-form4_1761084134.xml · nonDerivative · entry 7

IP FIBRE DEVICES LTD · CIK 0001130423 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,785,670

F8 · price: The reported transaction involves sale transactions ranging from $87.99 to $88.33 per share. The weighted average price per share was $88.05. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000157 · wk-form4_1761084134.xml · nonDerivative · entry 6

IP FIBRE DEVICES LTD · CIK 0001130423 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,798,210

F7 · price: The reported transaction involves sale transactions ranging from $86.90 to $87.89 per share. The weighted average price per share was $87.77. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000157 · wk-form4_1761084134.xml · nonDerivative · entry 5

IP FIBRE DEVICES LTD · CIK 0001130423 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,809,636

F6 · price: The reported transaction involves sale transactions ranging from $88.44 to $88.69 per share. The weighted average price per share was $88.54. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000157 · wk-form4_1761084134.xml · nonDerivative · entry 4

IP FIBRE DEVICES LTD · CIK 0001130423 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,810,784

F5 · price: The reported transaction involves sale transactions ranging from $87.43 to $88.37 per share. The weighted average price per share was $87.88. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000157 · wk-form4_1761084134.xml · nonDerivative · entry 3

IP FIBRE DEVICES LTD · CIK 0001130423 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,826,735

F4 · price: The reported transaction involves sale transactions ranging from $86.41 to $87.38 per share. The weighted average price per share was $87.10. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000155 · wk-form4_1761084083.xml · nonDerivative · entry 3

Ness Trevor · CIK 0001568884 · SVP, Sales & Strategic Bus Dev

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,887

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 28, 2025.

SEC source: 0001111928-25-000155 · wk-form4_1761084083.xml · nonDerivative · entry 2

Ness Trevor · CIK 0001568884 · SVP, Sales & Strategic Bus Dev

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,952

F3 · price: The reported transaction involves sale transactions ranging from $86.73 to $87.62 per share. The weighted average price per share was $87.22. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 28, 2025.

SEC source: 0001111928-25-000155 · wk-form4_1761084083.xml · nonDerivative · entry 1

Ness Trevor · CIK 0001568884 · SVP, Sales & Strategic Bus Dev

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,215

F2 · price: The reported transaction involves sale transactions ranging from $85.67 to $86.42 per share. The weighted average price per share was $86.03. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 28, 2025.

SEC source: 0001111928-25-000157 · wk-form4_1761084134.xml · nonDerivative · entry 2

IP FIBRE DEVICES LTD · CIK 0001130423 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,833,278

F3 · price: The reported transaction involves sale transactions ranging from $85.38 to $85.98 per share. The weighted average price per share was $85.71. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000157 · wk-form4_1761084134.xml · nonDerivative · entry 1

IP FIBRE DEVICES LTD · CIK 0001130423 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,834,153

F2 · price: The reported transaction involves sale transactions ranging from $84.05 to $85.02 per share. The weighted average price per share was $84.62. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000153 · wk-form4_1760562960.xml · nonDerivative · entry 10

Valentin Gapontsev Trust I · CIK 0001508155 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,992,599

F11 · price: The reported transaction involves sale transactions ranging from $85.50 to $86.03 per share. The weighted average price per share was $85.97. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000153 · wk-form4_1760562960.xml · nonDerivative · entry 9

Valentin Gapontsev Trust I · CIK 0001508155 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,999,825

F10 · price: The reported transaction involves sale transactions ranging from $84.48 to $85.26 per share. The weighted average price per share was $84.73. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000153 · wk-form4_1760562960.xml · nonDerivative · entry 8

Valentin Gapontsev Trust I · CIK 0001508155 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,004,991

F9 · price: The reported transaction involves sale transactions ranging from $83.48 to $84.45 per share. The weighted average price per share was $84.24. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000153 · wk-form4_1760562960.xml · nonDerivative · entry 7

Valentin Gapontsev Trust I · CIK 0001508155 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,010,306

F8 · price: The reported transaction involves sale transactions ranging from $83.87 to $84.19 per share. The weighted average price per share was $84.00. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000153 · wk-form4_1760562960.xml · nonDerivative · entry 6

Valentin Gapontsev Trust I · CIK 0001508155 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,013,742

F7 · price: The reported transaction involves sale transactions ranging from $82.82 to $83.77 per share. The weighted average price per share was $83.22. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000153 · wk-form4_1760562960.xml · nonDerivative · entry 5

Valentin Gapontsev Trust I · CIK 0001508155 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,022,172

F6 · price: The reported transaction involves sale transactions ranging from $81.70 to $82.68 per share. The weighted average price per share was $82.19. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000153 · wk-form4_1760562960.xml · nonDerivative · entry 4

Valentin Gapontsev Trust I · CIK 0001508155 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,025,174

F5 · price: The reported transaction involves sale transactions ranging from $80.59 to $81.43 per share. The weighted average price per share was $80.96. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000153 · wk-form4_1760562960.xml · nonDerivative · entry 3

Valentin Gapontsev Trust I · CIK 0001508155 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,026,835

F4 · price: The reported transaction involves sale transactions ranging from $83.71 to $83.94 per share. The weighted average price per share was $83.86. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000153 · wk-form4_1760562960.xml · nonDerivative · entry 2

Valentin Gapontsev Trust I · CIK 0001508155 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,027,885

F3 · price: The reported transaction involves sale transactions ranging from $82.69 to $83.65 per share. The weighted average price per share was $83.23. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000153 · wk-form4_1760562960.xml · nonDerivative · entry 1

Valentin Gapontsev Trust I · CIK 0001508155 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,057,432

F2 · price: The reported transaction involves sale transactions ranging from $81.41 to $82.31 per share. The weighted average price per share was $82.09. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000151 · wk-form4_1759956379.xml · derivative · entry 4

Meurice Eric · CIK 0001372258 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,500

Underlying: Common Stock · 1,502 shares

Expires 2026-05-31

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.

F4 · derivative.exercise_date: Grant of stock options vesting 100% on earlier of 6/1/2017 or date of 2017 annual stockholder meeting of Issuer.

SEC source: 0001111928-25-000151 · wk-form4_1759956379.xml · nonDerivative · entry 3

Meurice Eric · CIK 0001372258 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,803

F3 · price: The reported transaction involves sale transactions ranging from $89.96 to $90.11 per share. The weighted average price per share was $90.01. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 7, 2025.

SEC source: 0001111928-25-000151 · wk-form4_1759956379.xml · nonDerivative · entry 2

Meurice Eric · CIK 0001372258 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,631

F2 · price: The reported transaction involves sale transactions ranging from $88.87 to $89.62 per share. The weighted average price per share was $89.24. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 7, 2025.

SEC source: 0001111928-25-000151 · wk-form4_1759956379.xml · nonDerivative · entry 1

Meurice Eric · CIK 0001372258 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,305

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: 0001111928-25-000149 · wk-form4_1759794847.xml · nonDerivative · entry 1

Lopresti Angelo P · CIK 0001378548 · SVP, Secretary & Gen Counsel · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 62,885

F2 · price: The reported transaction involves sale transactions ranging from $85.00 to $85.38 per share. The weighted average price per share was $85.17. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000144 · wk-form4_1758746848.xml · nonDerivative · entry 2

SCHERBAKOV EUGENE A · CIK 0001378544 · Director · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 70,130

F3 · price: The reported transaction involves sale transactions ranging from $82.02 to $82.26 per share. The weighted average price per share was $82.17. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000144 · wk-form4_1758746848.xml · nonDerivative · entry 1

SCHERBAKOV EUGENE A · CIK 0001378544 · Director · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 71,275

F2 · price: The reported transaction involves sale transactions ranging from $80.95 to $81.95 per share. The weighted average price per share was $81.54. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.

SEC source: 0001111928-25-000142 · wk-form4_1758575103.xml · nonDerivative · entry 4

IP FIBRE DEVICES LTD · CIK 0001130423 · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,849,837

F5 · price: The reported transaction involves sale transactions ranging from $81.80 to $82.50 per share. The weighted average price per share was $82.28. The Reporting Person undertakes to provide upon request by the SEC staff, the Issuer or a security holder of the Issuer, information regarding the number of shares sold at each separate price.

F1 · acquired: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 13, 2025.