# EDGAR Filing Document

**Accession Number:** 0001627974
**File Stem:** 0001209191-23-016019
**Filing Date:** 2023-3
**Character Count:** 8744
**Document Hash:** 0e9b05172e4b695c81aba554a589e6ff
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001209191-23-016019.hdr.sgml**: 20230303

**ACCESSION NUMBER**: 0001209191-23-016019

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20230301

**FILED AS OF DATE**: 20230303

**DATE AS OF CHANGE**: 20230303

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Shaffer Charles M
- **CENTRAL INDEX KEY:** 0001627974

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-13660
- **FILM NUMBER:** 23706829

**MAIL ADDRESS:**
- **STREET 1:** C/O SEACOAST BANKING CORPORATION OF FL
- **STREET 2:** 815 COLORADO AVE., P. O. BOX 9012
- **CITY:** STUART
- **STATE:** FL
- **ZIP:** 34995
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SEACOAST BANKING CORP OF FLORIDA
- **CENTRAL INDEX KEY:** 0000730708
- **STANDARD INDUSTRIAL CLASSIFICATION:** STATE COMMERCIAL BANKS [6022]
- **IRS NUMBER:** 592260678
- **STATE OF INCORPORATION:** FL
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 815 COLORADO AVE
- **STREET 2:** P O BOX 9012
- **CITY:** STUART
- **STATE:** FL
- **ZIP:** 34994
- **BUSINESS PHONE:** 772 288 6063

**MAIL ADDRESS:**
- **STREET 1:** 815 COLORADO AVE
- **STREET 2:** P O BOX 9012
- **CITY:** STUART
- **STATE:** FL
- **ZIP:** 34995

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Shaffer Charles M<br><sub>(Last) (First) (Middle)</sub><br>SEACOAST BANKING CORPORATION OF FLORIDA<br>P. O. BOX 9012<br><sub>(Street)</sub><br>STUART, FL 34995<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-03-01 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_Chairman, President & CEO_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>SEACOAST BANKING CORP OF FLORIDA [ SBCF ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2023-03-01 |  | A<sup>(1)</sup> |  | 13303 | A | 0.00<sup>(1)</sup> | 74194 | D |  |
| Common Stock |  |  |  |  |  |  |  | 1574 | D<sup>(2)</sup> |  |
| Common Stock |  |  |  |  |  |  |  | 18346 | D<sup>(3)</sup> |  |
| Common Stock |  |  |  |  |  |  |  | 5241 | D<sup>(4)</sup> |  |
| Common Stock |  |  |  |  |  |  |  | 6147 | D<sup>(5)</sup> |  |
| Common Stock |  |  |  |  |  |  |  | 1146.872 | D<sup>(6)</sup> |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Common Stock Right to Buy<sup>(7)</sup> | $31.15 |  |  |  |  |  |  | <sup>(8)</sup> | 2028-04-02 | Common Stock | 18952 |  | 18952 | D |  |
| Common Stock Right to Buy<sup>(7)</sup> | $28.69 |  |  |  |  |  |  | <sup>(8)</sup> | 2027-04-03 | Common Stock | 28544 |  | 28544 | D |  |
| Common Stock Right to Buy<sup>(7)</sup> | $14.82 |  |  |  |  |  |  | <sup>(9)</sup> | 2024-02-28 | Common Stock | 21255 |  | 21255 | D |  |
| Common Stock Right to Buy<sup>(7)</sup> | $10.54 |  |  |  |  |  |  | 2015-04-29<sup>(10)</sup> | 2024-04-29 | Common Stock | 25000 |  | 25000 | D |  |

---

### Footnotes:

(1) Represents shares subject to performance-based restricted stock units ("PSUs") granted on April 1, 2020 that were subject to performance requirements which were attained over a period ending December 31, 2022. On March 1, 2023, the Company's Compensation and Governance Committee certified the number of shares attained based on the performance criteria, which will vest December 31, 2023, provided the recipient remains in continuous service with the Company on the vesting date.

(2) Represents an unvested time-based restricted stock award granted on April 1, 2020, which shall vest over 3 years in one-third increments, beginning April 1, 2021, and on each anniversary thereafter, subject to continued employment.

(3) Represents an unvested time-based restricted stock award granted on April 1, 2021, which shall vest over 3 years in one-third increments, beginning April 1, 2022, and on each anniversary thereafter, subject to continued employment.

(4) Represents an unvested time-based restricted stock award granted on April 1, 2022, which shall vest over 3 years in one-third increments, beginning April 1, 2023, and on each anniversary thereafter, subject to continued employment.

(5) Shares in the Company's Employee Stock Purchase Plan.

(6) Share equivalents held in Company's Retirement Savings Plan as of December 31, 2022.

(7) Granted pursuant to the Company's Amended and Restated 2013 Incentive Plan.

(8) 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.

(9) Originally had two tiered vesting. Performance criteria was met and time-based vesting began on 12/1/2016. Option vests in equal installments at the end of each month over the next 48 months, provided that Optionee remains in continuous service on each applicable vesting date.

(10) 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), and then at the rate of 20% on each of the following two anniversaries thereafter 20%, subject to continued employment.

**Signature:** /s/ Charles M. Shaffer  
**Date:** 2023-03-03

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**