SLGN

SEC source: 0001628280-26-039176 · wk-form4_1780085490.xml · nonDerivative · entry 1

Ramdev Niharika · CIK 0001835143 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,610

F1 · price: These securities are restricted stock units that were granted on May 27, 2026 pursuant to the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan, as amended, and become fully vested on the date of the next annual meeting of stockholders of Silgan Holdings Inc. These restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

SEC source: 0001628280-26-039173 · wk-form4_1780085430.xml · nonDerivative · entry 1

Cleland Nielsen Fiona · CIK 0002025277 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,228

F1 · price: These securities are restricted stock units that were granted on May 27, 2026 pursuant to the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan, as amended, and become fully vested on the date of the next annual meeting of stockholders of Silgan Holdings Inc. These restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

SEC source: 0001628280-26-039171 · wk-form4_1780085405.xml · nonDerivative · entry 1

Miller Shannon · CIK 0001949067 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,516

F1 · price: These securities are restricted stock units that were granted on May 27, 2026 pursuant to the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan, as amended, and become fully vested on the date of the next annual meeting of stockholders of Silgan Holdings Inc. These restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

SEC source: 0001628280-26-039170 · wk-form4_1780085386.xml · nonDerivative · entry 1

LICH BRAD A · CIK 0001595845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,587

F1 · price: These securities are restricted stock units that were granted on May 27, 2026 pursuant to the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan, as amended, and become fully vested on the date of the next annual meeting of stockholders of Silgan Holdings Inc. These restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

SEC source: 0001628280-26-039167 · wk-form4_1780085363.xml · nonDerivative · entry 1

LEWIS ROBERT B · CIK 0001164469 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 114,353

F1 · price: These securities are restricted stock units that were granted on May 27, 2026 pursuant to the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan, as amended, and become fully vested on the date of the next annual meeting of stockholders of Silgan Holdings Inc. These restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

SEC source: 0001628280-26-039165 · wk-form4_1780085313.xml · nonDerivative · entry 1

DONOVAN WILLIAM T · CIK 0001082700 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,940

F1 · price: These securities are restricted stock units that were granted on May 27, 2026 pursuant to the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan, as amended, and become fully vested on the date of the next annual meeting of stockholders of Silgan Holdings Inc. These restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

SEC source: 0001628280-26-039161 · wk-form4_1780085264.xml · nonDerivative · entry 1

ALLOTT ANTHONY J · CIK 0001199503 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 373,027

F1 · price: These securities are restricted stock units that were granted on May 27, 2026 pursuant to the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan, as amended, and become fully vested on the date of the next annual meeting of stockholders of Silgan Holdings Inc. These restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

SEC source: 0001628280-26-039158 · wk-form4_1780085229.xml · nonDerivative · entry 1

ABRAMSON LEIGH J · CIK 0001205109 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,453

F1 · price: These securities are restricted stock units that were granted on May 27, 2026 pursuant to the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan, as amended, and become fully vested on the date of the next annual meeting of stockholders of Silgan Holdings Inc. These restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

SEC source: 0001628280-26-013919 · wk-form4_1772573731.xml · nonDerivative · entry 2

Murphy Daniel Patrick · CIK 0001903472 · VP, Controller & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,295

F1 · price: These securities are restricted stock units that were granted on March 1, 2026 under the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan. These restricted stock units vest ratably over a 5 year period beginning on March 1, 2027 and will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

F2 · balance_after: This amount includes 17,080 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0001628280-26-013919 · wk-form4_1772573731.xml · nonDerivative · entry 1

Murphy Daniel Patrick · CIK 0001903472 · VP, Controller & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,095

SEC source: 0001628280-26-013916 · wk-form4_1772573707.xml · nonDerivative · entry 2

Hutter Alexander G · CIK 0002095452 · SVP, Strategy and IR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,725

F1 · price: These securities are restricted stock units that were granted on March 1, 2026 under the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan. These restricted stock units vest ratably over a 5 year period beginning on March 1, 2027 and will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

F2 · balance_after: This amount includes 57,800 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0001628280-26-013916 · wk-form4_1772573707.xml · nonDerivative · entry 1

Hutter Alexander G · CIK 0002095452 · SVP, Strategy and IR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,225

SEC source: 0001628280-26-013914 · wk-form4_1772573685.xml · nonDerivative · entry 2

Ulmer Kimberly Irene · CIK 0001349739 · SVP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,590

F1 · price: These securities are restricted stock units that were granted on March 1, 2026 under the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan. These restricted stock units vest ratably over a 5 year period beginning on March 1, 2027 and will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

F2 · balance_after: This amount includes 45,800 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0001628280-26-013914 · wk-form4_1772573685.xml · nonDerivative · entry 1

Ulmer Kimberly Irene · CIK 0001349739 · SVP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,890

SEC source: 0001628280-26-013911 · wk-form4_1772573664.xml · nonDerivative · entry 1

LEWIS ROBERT B · CIK 0001164469 · Director · EVP, Corp. Dev. & Admin.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,572

F1 · balance_after: This amount includes 23,473 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0001628280-26-013910 · wk-form4_1772573630.xml · nonDerivative · entry 2

FABRY SHAWN C · CIK 0001267857 · EVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 95,949

F1 · price: These securities are restricted stock units that were granted on March 1, 2026 under the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan. These restricted stock units vest ratably over a 5 year period beginning on March 1, 2027 and will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

F2 · balance_after: This amount includes 62,520 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0001628280-26-013910 · wk-form4_1772573630.xml · nonDerivative · entry 1

FABRY SHAWN C · CIK 0001267857 · EVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,449

SEC source: 0001628280-26-013909 · wk-form4_1772573606.xml · nonDerivative · entry 2

HOGAN FRANK W III · CIK 0001199506 · EVP, Gen. Counsel & Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 319,720

F1 · price: These securities are restricted stock units that were granted on March 1, 2026 under the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan. These restricted stock units vest ratably over a 5 year period beginning on March 1, 2027 and will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

F2 · balance_after: This amount includes 53,214 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0001628280-26-013909 · wk-form4_1772573606.xml · nonDerivative · entry 1

HOGAN FRANK W III · CIK 0001199506 · EVP, Gen. Counsel & Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 304,220

SEC source: 0001628280-26-013907 · wk-form4_1772573581.xml · nonDerivative · entry 2

Chevrier Philippe · CIK 0001959128 · EVP & Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 92,463

F1 · price: These securities are restricted stock units that were granted on March 1, 2026 under the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan. These restricted stock units vest ratably over a 5 year period beginning on March 1, 2027 and will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

F2 · balance_after: This amount consists of 77,800 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0001628280-26-013907 · wk-form4_1772573581.xml · nonDerivative · entry 1

Chevrier Philippe · CIK 0001959128 · EVP & Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,263

SEC source: 0001628280-26-013906 · wk-form4_1772573559.xml · nonDerivative · entry 2

Greenlee Adam J · CIK 0001412971 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 441,017

F1 · price: These securities are restricted stock units that were granted on March 1, 2026 under the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan. These restricted stock units vest ratably over a 5 year period beginning on March 1, 2027 and will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

F2 · balance_after: This amount includes 258,620 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0001628280-26-013906 · wk-form4_1772573559.xml · nonDerivative · entry 1

Greenlee Adam J · CIK 0001412971 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 376,117

SEC source: 0001628280-26-012869 · wk-form4_1772228136.xml · nonDerivative · entry 1

Hutter Alexander G · CIK 0002095452 · SVP, Strategy and IR

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,511

F1 · price: On March 1, 2025, the reporting person was granted a performance award of 25,000 restricted stock units under the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan, subject to the satisfaction of certain performance criteria for the Issuer's 2025 fiscal year. The performance criteria for the Issuer's 2025 fiscal year was determined to have been met upon the finalization of the Issuer's audited financial statements for 2025. Accordingly, these restricted stock units are no longer subject to cancellation. These restricted stock units vest all at once on March 1, 2030 and will be settled in shares of Common Stock on a 1-for-1 basis.

F2 · balance_after: This amount includes 42,400 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0001628280-26-012867 · wk-form4_1772228117.xml · nonDerivative · entry 1

Ulmer Kimberly Irene · CIK 0001349739 · SVP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 114,521

F1 · price: On March 1, 2025, the reporting person was granted a performance award of 9,200 restricted stock units under the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan, subject to the satisfaction of certain performance criteria for the Issuer's 2025 fiscal year. The performance criteria for the Issuer's 2025 fiscal year was determined to have been met upon the finalization of the Issuer's audited financial statements for 2025. Accordingly, these restricted stock units are no longer subject to cancellation. These restricted stock units vest ratably beginning on March 1, 2026 and on each March 1 thereafter through March 1, 2028 and will be settled in shares of Common Stock on a 1-for-1 basis.

F2 · balance_after: This amount includes 55,206 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0001628280-26-012864 · wk-form4_1772228075.xml · nonDerivative · entry 1

FABRY SHAWN C · CIK 0001267857 · EVP & Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 77,513

F1 · price: On March 1, 2025, the reporting person was granted a performance award of 25,000 restricted stock units under the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan, subject to the satisfaction of certain performance criteria for the Issuer's 2025 fiscal year. The performance criteria for the Issuer's 2025 fiscal year was determined to have been met upon the finalization of the Issuer's audited financial statements for 2025. Accordingly, these restricted stock units are no longer subject to cancellation. These restricted stock units vest all at once on March 1, 2030 and will be settled in shares of Common Stock on a 1-for-1 basis.

F2 · balance_after: This amount includes 48,600 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0001628280-26-012863 · wk-form4_1772228035.xml · nonDerivative · entry 1

HOGAN FRANK W III · CIK 0001199506 · EVP, Gen. Counsel & Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 312,956

F1 · price: On March 1, 2025, the reporting person was granted a performance award of 8,800 restricted stock units under the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan, subject to the satisfaction of certain performance criteria for the Issuer's 2025 fiscal year. The performance criteria for the Issuer's 2025 fiscal year was determined to have been met upon the finalization of the Issuer's audited financial statements for 2025. Accordingly, these restricted stock units are no longer subject to cancellation. These restricted stock units vest ratably beginning on March 1, 2026 and on each March 1 thereafter through March 1, 2028 and will be settled in shares of Common Stock on a 1-for-1 basis.

F2 · balance_after: This amount includes 59,793 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0001628280-26-012861 · wk-form4_1772228004.xml · nonDerivative · entry 1

Chevrier Philippe · CIK 0001959128 · EVP & Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,000

F1 · price: On March 1, 2025, the reporting person was granted a performance award of 48,000 restricted stock units under the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan, subject to the satisfaction of certain performance criteria for the Issuer's 2025 fiscal year. The performance criteria for the Issuer's 2025 fiscal year was determined to have been met upon the finalization of the Issuer's audited financial statements for 2025. Accordingly, these restricted stock units are no longer subject to cancellation. These restricted stock units vest ratably beginning on March 1, 2026 and on each March 1 thereafter through March 1, 2028 and will be settled in shares of Common Stock on a 1-for-1 basis.

F2 · balance_after: This amount consists of 90,000 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0001628280-26-012858 · wk-form4_1772227970.xml · nonDerivative · entry 1

Greenlee Adam J · CIK 0001412971 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 433,164

F1 · price: On March 1, 2025, the reporting person was granted a performance award of 105,000 restricted stock units under the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan, subject to the satisfaction of certain performance criteria for the Issuer's 2025 fiscal year. The performance criteria for the Issuer's 2025 fiscal year was determined to have been met upon the finalization of the Issuer's audited financial statements for 2025. Accordingly, these restricted stock units are no longer subject to cancellation. These restricted stock units vest ratably beginning on March 1, 2026 and on each March 1 thereafter through March 1, 2028 and will be settled in shares of Common Stock on a 1-for-1 basis.

F2 · balance_after: This amount includes 316,793 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0001628280-25-051092 · wk-form4_1762810299.xml · nonDerivative · entry 1

Ulmer Kimberly Irene · CIK 0001349739 · SVP & Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,321

F1 · balance_after: This amount includes 46,006 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0001628280-25-047939 · wk-form4_1762176614.xml · nonDerivative · entry 1

Greenlee Adam J · CIK 0001412971 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 328,164

F1 · price: This price is an average price. These shares were purchased in multiple transactions and the range of prices for 10/31/2025 was $37.84- $38.59. The reporting person undertakes to provide, upon request of the SEC staff, the Issuer or any security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F2 · balance_after: This amount includes 211,793 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0001164469-25-000012 · wk-form4_1755894680.xml · nonDerivative · entry 1

LEWIS ROBERT B · CIK 0001164469 · Director · EVP, Corp. Dev. & Admin.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 142,378

F1 · balance_after: This amount includes 46,314 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0000849869-25-000106 · wk-form4_1748637111.xml · nonDerivative · entry 1

Ramdev Niharika · CIK 0001835143 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,356

F1 · price: These securities are restricted stock units that were granted on May 28, 2025 pursuant to the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan and become fully vested on the date of the next annual meeting of stockholders of Silgan Holdings Inc. These restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

SEC source: 0000849869-25-000105 · wk-form4_1748636839.xml · nonDerivative · entry 1

Cleland Nielsen Fiona · CIK 0002025277 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,974

F1 · price: These securities are restricted stock units that were granted on May 28, 2025 pursuant to the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan and become fully vested on the date of the next annual meeting of stockholders of Silgan Holdings Inc. These restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

SEC source: 0000849869-25-000104 · wk-form4_1748636721.xml · nonDerivative · entry 1

Miller Shannon · CIK 0001949067 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,262

F1 · price: These securities are restricted stock units that were granted on May 28, 2025 pursuant to the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan and become fully vested on the date of the next annual meeting of stockholders of Silgan Holdings Inc. These restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

SEC source: 0000849869-25-000103 · wk-form4_1748636633.xml · nonDerivative · entry 1

LICH BRAD A · CIK 0001595845 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,333

F1 · price: These securities are restricted stock units that were granted on May 28, 2025 pursuant to the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan and become fully vested on the date of the next annual meeting of stockholders of Silgan Holdings Inc. These restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

SEC source: 0000849869-25-000102 · wk-form4_1748636488.xml · nonDerivative · entry 1

DONOVAN WILLIAM T · CIK 0001082700 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,686

F1 · price: These securities are restricted stock units that were granted on May 28, 2025 pursuant to the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan and become fully vested on the date of the next annual meeting of stockholders of Silgan Holdings Inc. These restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

SEC source: 0000849869-25-000101 · wk-form4_1748636246.xml · nonDerivative · entry 1

ALLOTT ANTHONY J · CIK 0001199503 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 369,773

F1 · price: These securities are restricted stock units that were granted on May 28, 2025 pursuant to the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan and become fully vested on the date of the next annual meeting of stockholders of Silgan Holdings Inc. These restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

SEC source: 0000849869-25-000100 · wk-form4_1748635973.xml · nonDerivative · entry 1

ABRAMSON LEIGH J · CIK 0001205109 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,199

F1 · price: These securities are restricted stock units that were granted on May 28, 2025 pursuant to the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan and become fully vested on the date of the next annual meeting of stockholders of Silgan Holdings Inc. These restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

SEC source: 0000849869-25-000085 · wk-form4_1747945845.xml · nonDerivative · entry 1

Murphy Daniel Patrick · CIK 0001903472 · VP, Controller & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,380

F1 · balance_after: This amount includes 14,780 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0000849869-25-000083 · wk-form4_1747859451.xml · nonDerivative · entry 1

LEWIS ROBERT B · CIK 0001164469 · Director · EVP, Corp. Dev. & Admin.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 153,378

F1 · price: This price is an average price. These shares were sold in multiple transactions and the range of sales prices for 05/19/2025 was $55.90 - $55.96. The reporting person undertakes to provide, upon request of the SEC staff, the Issuer or any security holder of the Issuer, full information regarding the number of shares sold at each separate price

F2 · balance_after: This amount includes 46,314 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0000849869-25-000081 · wk-form4_1747773130.xml · nonDerivative · entry 1

ALLOTT ANTHONY J · CIK 0001199503 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 367,511

F1 · price: This price is an average price. These shares were sold in multiple transactions and the range of sales prices for 05/16/2025 was $54.88 - $55.40. The reporting person undertakes to provide, upon request of the SEC staff, the Issuer or any security holder of the Issuer, full information regarding the number of shares sold at each separate price.

SEC source: 0000849869-25-000074 · wk-form4_1746735609.xml · nonDerivative · entry 1

Prinzen B Frederik · CIK 0001439747 · Sr. V.P. - Corp. Dev.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,380

F1 · balance_after: This amount consists of 1,380 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0000849869-25-000063 · wk-form4_1741124849.xml · nonDerivative · entry 2

Snyder Thomas James · CIK 0001413028 · President - Silgan Containers

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,070

F1 · price: These securities are restricted stock units that were granted on March 1, 2025 under the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan. These restricted stock units vest ratably over a 5 year period beginning on March 1, 2026 and will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

F2 · balance_after: This amount includes 103,220 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0000849869-25-000063 · wk-form4_1741124849.xml · nonDerivative · entry 1

Snyder Thomas James · CIK 0001413028 · President - Silgan Containers

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,570

SEC source: 0000849869-25-000062 · wk-form4_1741124809.xml · nonDerivative · entry 2

Murphy Daniel Patrick · CIK 0001903472 · VP, Controller & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,280

F1 · price: These securities are restricted stock units that were granted on March 1, 2025 under the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan. These restricted stock units vest ratably over a 5 year period beginning on March 1, 2026 and will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

F2 · balance_after: This amount includes 14,780 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0000849869-25-000062 · wk-form4_1741124809.xml · nonDerivative · entry 1

Murphy Daniel Patrick · CIK 0001903472 · VP, Controller & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,180

SEC source: 0000849869-25-000061 · wk-form4_1741124770.xml · nonDerivative · entry 1

McGrath Stacey J. · CIK 0001908618 · Vice President, Tax

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,515.7181

F1 · balance_after: This amount includes 8,320 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0000849869-25-000059 · wk-form4_1741124670.xml · nonDerivative · entry 2

FABRY SHAWN C · CIK 0001267857 · SVP, Corporate Development

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,513

F1 · price: These securities are restricted stock units that were granted on March 1, 2025 under the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan. These restricted stock units vest ratably over a 5 year period beginning on March 1, 2026 and will be settled in shares of Common Stock on a 1-for-1 basis upon vesting.

F2 · balance_after: This amount includes 23,600 restricted stock units that are not yet vested that have been granted under equity compensation plans of Silgan Holdings Inc. Upon vesting, these restricted stock units will be settled in shares of Common Stock on a 1-for-1 basis.

SEC source: 0000849869-25-000059 · wk-form4_1741124670.xml · nonDerivative · entry 1

FABRY SHAWN C · CIK 0001267857 · SVP, Corporate Development

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,113