| | As of December 31, 2019, Mr. Horrigan may be deemed to be the beneficial owner of 14,191,519 shares of Common Stock. This amount consists of: (i) 9,035,421 shares of Common Stock owned directly by Mr. Horrigan over which he has sole voting and dispositive power; (ii) 1,233,584 shares of Common Stock owned by the Horrigan Family Limited Partnership of which Mr. Horrigan is the sole general partner with sole voting and dispositive power; (iii) 1,529,045 shares of Common Stock owned by a grantor retained annuity trust of which Mr. Horrigan is the sole trustee with sole voting and dispositive power; (iv) 34,634 shares of Common Stock owned by a family trust of which Mr. Horrigan is the trustee with sole voting and dispositive power: and (v) 2,358,835 shares of Common Stock owned by grantor retained annuity trusts of which Mr. Horrigan and his spouse are co-trustees and may be deemed to have shared voting and dispositive power. This amount excludes: (q) 3,598 shares of Common Stock issuable for 3,598 restricted stock units granted to Mr. Horrigan under the Silgan Holdings Inc. Amended and Restated 2004 Stock Incentive Plan, which restricted stock units vested on June 8, 2011 but for which Mr. Horrigan has deferred receipt of such shares until June 8, 2020; (r) 2,246 shares of Common Stock issuable for 2,246 restricted stock units granted to Mr. Horrigan under the Silgan Holdings Inc. Amended and Restated 2004 Stock Incentive Plan, which restricted stock units vested on May 31, 2012 but for which Mr. Horrigan has deferred receipt of such shares until June 7, 2021; (s) 2,378 shares of Common Stock issuable for 2,378 restricted stock units granted to Mr. Horrigan under the Silgan Holdings Inc. Amended and Restated 2004 Stock Incentive Plan, which restricted stock units vested on May 30, 2013 but for which Mr. Horrigan has deferred receipt of such shares until May 30, 2022; (t) 2,124 shares of Common Stock issuable for 2,124 restricted stock units granted to Mr. Horrigan under the Silgan Holdings Inc. Amended and Restated 2004 Stock Incentive Plan, which restricted stock units vested on June 4, 2014 but for which Mr. Horrigan has deferred receipt of such shares until June 4, 2023; (u) 2,040 shares of Common Stock issuable for 2,040 restricted stock units granted to Mr. Horrigan under the Silgan Holdings Inc. Amended and Restated 2004 Stock Incentive Plan, which restricted stock units vested on May 28, 2015 but for which Mr. Horrigan has deferred receipt of such shares until May 28, 2024; (v) 3,282 shares of Common Stock issuable for 3,282 restricted stock units granted to Mr. Horrigan under the Silgan Holdings Inc. Amended and Restated 2004 Stock Incentive Plan, which restricted stock units vested on May 27, 2016 but for which Mr. Horrigan has deferred receipt of such shares until May 27, 2025; (w) 3,516 shares of Common Stock issuable for 3,516 restricted stock units granted to Mr. Horrigan under the Silgan Holdings Inc. Amended and Restated 2004 Stock Incentive Plan, which restricted stock units vested on May 31, 2017 but for which Mr. Horrigan has deferred receipt of such shares until May 31, 2026; (x) 2,854 shares of Common Stock issuable for 2,854 restricted stock units granted to Mr. Horrigan under the Silgan Holdings Inc. Amended and Restated 2004 Stock Incentive Plan, which restricted stock units vested on June 6, 2018 but for which Mr. Horrigan has deferred receipt of such shares until June 6, 2027; (y) 3,235 shares of Common Stock issuable for 3,235 restricted stock units granted to Mr. Horrigan under the Silgan Holdings Inc. Amended and Restated 2004 Stock Incentive Plan, which restricted stock units vested on June 12, 2019 but for which Mr. Horrigan has deferred receipt of such shares until June 12, 2028 and (z) 3,676 shares of Common Stock issuable for 3,676 restricted stock units granted to Mr. Horrigan under the Silgan Holdings Inc. Amended and Restated 2004 Stock Incentive Plan, which restricted stock units vest on the date of the Issuer's next annual meeting of stockholders but for which Mr. Horrigan has deferred receipt of such shares until June 13, 2029. |