| | | As of December 31, 2022, Mr. Horrigan may be deemed to be the beneficial owner of 12,967,094 shares of Common Stock. This amount consists of: (i) 8,983,749 shares of Common Stock owned directly by Mr. Horrigan over which he has sole voting and dispositive power; (ii) 34,634 shares of Common Stock owned by a family trust of which Mr. Horrigan is the trustee with sole voting and dispositive power; (iii) 2,515,127 shares of Common Stock owned by family trusts of which Mr. Horrigan's spouse is a trustee with voting and dispositive power and over which Mr. Horrigan may be deemed to have shared voting and dispositive power; (iv) 1,233,584 shares of Common Stock owned by the Horrigan Family Limited Partnership of which Mr. Horrigan's spouse is the sole general partner with sole voting and dispositive power and over which Mr. Horrigan may be deemed to have shared voting and dispositive power; and (v) 200,000 shares of Common Stock owned by a family foundation of which Mr. Horrigan and his spouse are co-trustees and may be deemed to have shared voting and dispositive power but with no pecuniary interest therein. This amount excludes: (r) 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, as amended, which restricted stock units vested on June 4, 2014 but for which Mr. Horrigan has deferred receipt of such shares until June 4, 2023; (s) 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, as amended, which restricted stock units vested on May 28, 2015 but for which Mr. Horrigan has deferred receipt of such shares until May 28, 2024; (t) 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, as amended, which restricted stock units vested on May 27, 2016 but for which Mr. Horrigan has deferred receipt of such shares until May 27, 2025; (u) 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, as amended, which restricted stock units vested on May 31, 2017 but for which Mr. Horrigan has deferred receipt of such shares until May 31, 2026; (v) 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, as amended, which restricted stock units vested on June 6, 2018 but for which Mr. Horrigan has deferred receipt of such shares until June 6, 2027; (w) 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, as amended, which restricted stock units vested on June 12, 2019 but for which Mr. Horrigan has deferred receipt of such shares until June 12, 2028; (x) 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, as amended, which restricted stock units vested on June 8, 2020 but for which Mr. Horrigan has deferred receipt of such shares until June 13, 2029; (y) 3,253 shares of Common Stock issuable for 3,253 restricted stock units granted to Mr. Horrigan under the Silgan Holdings Inc. Amended and Restated 2004 Stock Incentive Plan, as amended, which restricted stock units vested on June 1, 2021 but for which Mr. Horrigan has deferred receipt of such shares until June 9, 2030; and (z) 2,833 shares of Common Stock issuable for 2,833 restricted stock units granted to Mr. Horrigan under the Silgan Holdings Inc. Amended and Restated 2004 Stock Incentive Plan, as amended, which restricted stock units vest on the date of the Issuer's next annual meeting of stockholders. |