Operaciones de insiders

Open market or private sale of non-derivative or derivative security

• F1 Held in IRA

Exercise or conversion of derivative security exempted pursuant to Rule 16b-3

• F1 Cash exercise of in the money option, the market price on the date of exercise was $34.00

Exercise or conversion of derivative security exempted pursuant to Rule 16b-3

• F7 Granted pursuant to the Company's Amended and Restated 2013 Incentive Plan
• F8 Vests over 3 years in one-third increments each anniversary of the date of grant beginning on the first anniversary of the date of grant (the date indicated), subject to continued employment.

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Held in Seacoast's Non-employee Directors Deferred Compensation Plan.

Open market or private sale of non-derivative or derivative security

• F1 Shares sold were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 21, 2025
• F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.99 to $34.27. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price for this transaction
• F3 Shares held in Trust

Exercise or conversion of derivative security exempted pursuant to Rule 16b-3

Open market or private sale of non-derivative or derivative security

• F1 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $34.25 to $34.34. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price for this transaction

Exercise or conversion of derivative security exempted pursuant to Rule 16b-3

• F5 Granted pursuant to Seacoast Banking Corporation of Florida's 2013 Incentive Plan.
• F6 Vests over 3 years in one-third increments each anniversary of the date of grant beginning on the first anniversary of the date of grant (the date indicated), subject to continuous employment on each vesting date and the Company's banking subsidiary meets certain capital requirements.

Exercise or conversion of derivative security exempted pursuant to Rule 16b-3

Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3

• F1 Represents shares sold for payment of the exercise price and to cover tax withholding obligations
• F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.36 to $35.61. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price for this transaction

Exercise or conversion of derivative security exempted pursuant to Rule 16b-3

• F8 Granted pursuant to the Company's Amended and Restated 2013 Incentive Plan
• F9 Vests over 3 years in one-third increments each anniversary of the date of grant beginning on the first anniversary of the date of grant (the date indicated), subject to continuous employment on each vesting date and the Company's banking subsidiary meets certain capital requirements

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Stock issued from Seacoast's 2021 Incentive Plan for Board Services in 2026

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Stock issued from Seacoast's 2021 Incentive Plan for Board Services in 2026

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Stock issued from Seacoast's 2021 Incentive Plan for Board Services in 2026
• F2 Shares held in Trust

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Restricted stock issued from Seacoast's 2021 Incentive Plan for service as a Director in 2026, and deferred into director's account in Seacoast's Directors Deferred Compensation Plan
• F2 Held in Seacoast's Non-employee Directors Deferred Compensation Plan

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Restricted stock issued from Seacoast's 2021 Incentive Plan for service as a Director in 2026, and deferred into director's account in Seacoast's Directors Deferred Compensation Plan
• F2 Held in Seacoast's Non-employee Directors Deferred Compensation Plan

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Stock issued from Seacoast's 2021 Incentive Plan for Board Services in 2026

Exercise or conversion of derivative security exempted pursuant to Rule 16b-3

• F1 Cash exercise of in the money option, the market price on the date of exercise was $34.74

Exercise or conversion of derivative security exempted pursuant to Rule 16b-3

• F7 Granted pursuant to the Company's Amended and Restated 2013 Incentive Plan
• F8 Vests over 3 years in one-third increments each anniversary of the date of grant beginning on the first anniversary of the date of grant (the date indicated), subject to continued employment

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Restricted stock issued from Seacoast's 2021 Incentive Plan for service as a Director in 2026, and deferred into director's account in Seacoast's Directors Deferred Compensation Plan
• F2 Held in Seacoast's Non-employee Directors Deferred Compensation Plan

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Restricted stock issued from Seacoast's 2021 Incentive Plan for service as a Director in 2026, and deferred into director's account in Seacoast's Directors Deferred Compensation Plan
• F2 Held in Seacoast's Non-employee Directors Deferred Compensation Plan

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Restricted stock issued from Seacoast's 2021 Incentive Plan for service as a Director in 2026, and deferred into director's account in Seacoast's Directors Deferred Compensation Plan
• F2 Held in Seacoast's Non-employee Directors Deferred Compensation Plan

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Restricted stock issued from Seacoast's 2021 Incentive Plan for service as a Director in 2026, and deferred into director's account in Seacoast's Directors Deferred Compensation Plan
• F2 Held in Seacoast's Non-employee Directors Deferred Compensation Plan

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Stock issued from Seacoast's 2021 Incentive Plan for Board Services in 2026

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Stock issued from Seacoast's 2021 Incentive Plan for Board Services in 2026

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Restricted stock issued from Seacoast's 2021 Incentive Plan for service as a Director in 2026, and deferred into director's account in Seacoast's Directors Deferred Compensation Plan
• F2 Held in Seacoast's Non-employee Directors Deferred Compensation Plan

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Restricted stock issued from Seacoast's 2021 Incentive Plan for service as a Director in 2026, and deferred into director's account in Seacoast's Directors Deferred Compensation Plan
• F2 Held in Seacoast's Non-employee Directors Deferred Compensation Plan

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Stock issued from Seacoast's 2021 Incentive Plan for Board Services in 2026
• F2 Held in LLC in which the reporting person is principal, as to which shares the reporting person has sole voting and dispositive power

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Held in Seacoast's Non-employee Directors Deferred Compensation Plan

Open market or private sale of non-derivative or derivative security

• F1 Shares sold were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 21, 2025
• F2 Shares held in Trust

Open market or private sale of non-derivative or derivative security

• F1 Shares sold were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 21, 2025
• F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $31.20 to $31.64. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price for this transaction
• F3 Shares held in Trust

Open market or private sale of non-derivative or derivative security

• F1 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from 31.16 to 31.18. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price for this transaction.

Open market or private sale of non-derivative or derivative security

• F1 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.75 to $30.96. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price for this transaction.

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Represents unvested time based restricted stock units granted on April 15, 2026, which vests over 3 years in one-third increments, beginning April 15, 2027, and on each anniversary thereafter subject to continued employment

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Represents unvested time based restricted stock units granted on April 15, 2026, which vests over 3 years in one-third increments, beginning April 15, 2027, and on each anniversary thereafter subject to continued employment

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Represents unvested time based restricted stock units granted on April 15, 2026, which vests over 3 years in one-third increments, beginning April 15, 2027, and on each anniversary thereafter subject to continued employment

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Represents unvested time based restricted stock units granted on April 15, 2026, which vests over 3 years in one-third increments, beginning April 15, 2027, and on each anniversary thereafter subject to continued employment

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Represents unvested time based restricted stock units granted on April 15, 2026, which vests over 3 years in one-third increments, beginning April 15, 2027, and on each anniversary thereafter subject to continued employment

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Represents unvested time based restricted stock units granted on April 15, 2026, which vests over 3 years in one-third increments, beginning April 1, 2027, and on each anniversary thereafter subject to continued employment

Grant, award or other acquisition pursuant to Rule 16b-3(d)

• F1 Held in Seacoast's Non-employee Directors Deferred Compensation Plan

Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3

• F1 Represents an unvested time-based restricted stock award granted on April 1, 2023, which shall vest over 3 years in one-third increments, beginning April 2, 2024, and on each anniversary thereafter, subject to continued employment.

Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3

• F2 Represents an unvested time-based restricted stock award granted on April 1, 2024, which shall vest over 3 years in one-third increments, beginning April 1, 2025, and on each anniversary thereafter, subject to continued employment.

Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3

• F3 Represents an unvested time based restricted stock award grated on April 1, 2025, which vests over 3 years in one-third increments, beginning April 1, 2026, and on each anniversary thereafter subject to continued employment

Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3

• F1 Represents an unvested time-based restricted stock award granted on April 1, 2023, which shall vest over 3 years in one-third increments , beginning on April 1, 2024, and on each anniversary thereafter, subject to continued employment

Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3

• F2 Represents an unvested time-based restricted stock award granted on April 1, 2024, which shall vest over 3 years in one-third increments, beginning April 1, 2025, and on each anniversary thereafter, subject to continued employment

Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3

• F3 Represents an unvested time based restricted stock award grated on April 1, 2025, which vests over 3 years in one-third increments, beginning April 1, 2026, and on each anniversary thereafter subject to continued employment

Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3

• F1 Represents an unvested time-based restricted stock award granted on April 1 2023, which shall vest over 3 years in one-third increments, beginning April 1, 2024, and on each anniversary thereafter, subject to continued employment.

Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3

• F2 Represents an unvested time-based restricted stock award granted on April 1, 2024, which shall vest over 3 years in one-third increments, beginning April 1, 2025, and on each anniversary thereafter, subject to continued employment.

Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3

• F3 Represents an unvested time based restricted stock award grated on April 1, 2025, which vests over 3 years in one-third increments, beginning April 1, 2026, and on each anniversary thereafter subject to continued employment

Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3

• F1 Represents an unvested time-based restricted stock award granted on April 1, 2023, which shall vest over 3 years in one-third increments, beginning April 1, 2024, and on each anniversary thereafter, subject to continued employment