X0306 4 2018-02-22 0 0000849869 SILGAN HOLDINGS INC SLGN 0001199501 HORRIGAN D GREG C/O SILGAN HOLDINGS INC. 4 LANDMARK SQUARE - SUITE 400 STAMFORD CT 06901 1 0 1 0 Common Stock 2018-02-22 4 S 0 28600 28.61 D 5692075 I By GRAT Common Stock 2018-02-23 4 S 0 46345 28.61 D 5645730 I By GRAT Common Stock 7826790 D Common Stock 1233584 I By Horrigan Family Limited Partnership Common Stock 34634 I By Trust The range of sales prices for 02/22/2018 was $28.60 - $28.62. The reporting person undertakes to provide, upon the 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. The range of sales prices for 02/23/2018 was $28.60 - $28.64. The reporting person undertakes to provide, upon the 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 These shares of Common Stock are owned by grantor retained annuity trusts, of which the reporting person and his spouse are co-trustees with voting and dispositive power over the shares or the reporting person is the sole trustee with voting and dispositive power over the shares. The reporting person is the sole general partner of the Horrigan Family Limited Partnership, with sole voting and dispositive power over the shares. These shares of Common Stock are owned by a family trust, of which the reporting person is the trustee with voting and dispositive power over the shares. /s/ Frank W. Hogan, III, Attorney-in-fact for D. Greg Horrigan 2018-02-23