X0206 3 2021-03-08 0 0000837465 CALLAWAY GOLF CO ELY 0001716155 WestRiver Management, LLC 920 5TH AVE, STE 3450 SEATTLE WA 98104 0 0 1 0 0001843486 TGP Advisors, LLC 920 5TH AVE, STE 3450 SEATTLE WA 98104 0 0 1 0 0001848877 TGP Manager, LLC 920 5TH AVE, STE 3450 SEATTLE WA 98104 0 0 1 0 0001673708 TGP INVESTORS, LLC 920 5TH AVE, STE 3450 SEATTLE WA 98104 0 0 1 0 0001673709 TGP INVESTORS II, LLC 920 5TH AVE, STE 3450 SEATTLE WA 98104 0 0 1 0 Common Stock 37405 I By TGP Advisors, LLC Common Stock 14748485 I By TGP Investors, LLC Common Stock 6051339 I By TGP Investors II, LLC Stock Option 6.91 2024-04-16 Common Stock 21348 I By TGP Advisors, LLC Stock Option 21.08 2025-08-31 Common Stock 149439 I By TGP Advisors, LLC Stock Option 30.45 2028-03-05 Common Stock 35880 I By TGP Advisors, LLC Stock Option 32.21 2029-03-18 Common Stock 43391 I By TGP Advisors, LLC Stock Option 35.14 2030-04-29 Common Stock 45229 I By TGP Advisors, LLC WestRiver Management, LLC is the sole managing member of TGP Advisors, LLC and TGP Manager, LLC. TGP Manager, LLC is the sole managing member of TGP Investors, LLC ("TGP") and TGP Investors II, LLC ("TGP II") and in such capacity is responsible for voting decisions with respect to certain matters regarding the Issuer's securities held by TGP and TGP II. Erik Anderson is the sole member and manager of WestRiver Management, LLC. As a result, each of the Reporting Persons may be deemed to beneficially own the securities held of record by TGP Investors, LLC and TGP Investors II, LLC. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein. The stock option is currently exercisable. The stock option vests in four equal annual installments, beginning on January 1, 2019. The stock option vests in four equal annual installments, beginning on January 1, 2020. The stock option vests in four equal annual installments, beginning on January 1, 2021. Erik J. Anderson has separately filed a Form 4 with respect to the securities reported herein. West River Management, LLC, By: /s/ Erik J. Anderson, Manager 2021-03-09 TGP Advisors, LLC, By: West River Management, LLC, its sole managing member, By: /s/ Erik J. Anderson, Manager 2021-03-09 By: TGP Manager, LLC, By: West River Management, LLC, its sole managing member, By: /s/ Erik J. Anderson, Manager 2021-03-09 By: TGP Investors, LLC, By: TGP Manager, LLC, its sole managing member, By: West River Management, LLC, its sole managing member, By: /s/ Erik J. Anderson, Manager 2021-03-09 By: TGP Investors II, LLC, By: TGP Manager, LLC, its sole managing member, By: West River Management, LLC, its sole managing member, By: /s/ Erik J. Anderson, Manager 2021-03-09