Seacoast director sells 8,000 shares under plan

Seacoast Banking Corp of Florida director Dennis S. Hudson III reported an open‑market sale of 8,000 shares of Common Stock at a weighted average price of $31.41 per share on June 16, 2026.

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Rhea-AI Filing Summary

Seacoast Banking Corp of Florida director Dennis S. Hudson III reported an open‑market sale of 8,000 shares of Common Stock at a weighted average price of $31.41 per share on June 16, 2026. The shares were sold in multiple transactions at prices between $31.20 and $31.64 under a pre‑arranged Rule 10b5‑1 trading plan adopted on November 21, 2025.

After this sale, Hudson directly holds 220,854 shares of Seacoast common stock and also reports additional indirect holdings, including shares held by a family partnership and in a spouse’s trust. He continues to hold stock options covering 78,021 shares at an exercise price of $28.69 expiring on April 1, 2027, and 55,279 shares at an exercise price of $31.15 expiring on April 1, 2028.

Insider Trade Summary 10b5-1

Net Seller: 8,000 shares

Net Sell 8 txns

Insider HUDSON DENNIS S III

Role Director

Sold 8,000 shs ($251K)

Type	Security	Shares	Price	Value
Sale	Common Stock	8,000	$31.41	$251K
holding	Common Stock Right to Buy	--	--	--
holding	Common Stock Right to Buy	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 282,629.537 shares (Direct); Common Stock Right to Buy — 133,300 contracts (Direct); Common Stock — 21,867 shares (Indirect, Held by Spouse in Trust); Common Stock — 51,416 shares (Indirect, Held by Sherwood Partners, Ltd, family partnership)

Footnotes (8)

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
F4. Shares held jointly with spouse
F5. Represents shares held in the Company's Retirement Savings Plan as of March 31, 2026
F6. Held in IRA
F7. Granted pursuant to Company's 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 continuous employment on each vesting date and the Company's banking subsidiary meets certain capital requirements

Key Figures

Shares sold: 8,000 shares Weighted average sale price: $31.41 per share Direct holdings after sale: 220,854 shares +4 more

7 metrics

Shares sold 8,000 shares Common Stock sold on June 16, 2026

Weighted average sale price $31.41 per share Open-market sale of 8,000 shares

Direct holdings after sale 220,854 shares Common Stock directly owned following transaction

Family partnership holdings 51,416 shares Held by Sherwood Partners, Ltd, family partnership

Spouse trust holdings 21,867 shares Held by spouse in trust as reported indirect ownership

Option strike price 2027 $28.69 per share Options on 78,021 shares expiring April 1, 2027

Option strike price 2028 $31.15 per share Options on 55,279 shares expiring April 1, 2028

Key Terms

Rule 10b5-1 trading plan, weighted average price, Retirement Savings Plan, Incentive Plan

4 terms

Rule 10b5-1 trading plan regulatory

"Shares sold were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price financial

"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

Retirement Savings Plan financial

"Represents shares held in the Company's Retirement Savings Plan as of March 31, 2026"

Incentive Plan financial

"Granted pursuant to Company's 2013 Incentive Plan"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Seacoast Banking (SBCF) report for Dennis S. Hudson III?

Dennis S. Hudson III reported selling 8,000 shares of Seacoast Banking common stock. The sale occurred on June 16, 2026 at a weighted average price of $31.41 per share, executed in multiple trades between $31.20 and $31.64.

Was the SBCF insider sale by Dennis S. Hudson III made under a Rule 10b5-1 plan?

Yes. The 8,000-share sale by Dennis S. Hudson III was effected under a Rule 10b5‑1 trading plan. The filing states this plan was adopted on November 21, 2025, indicating the trades were pre‑scheduled rather than discretionary.

How many Seacoast Banking (SBCF) shares does Dennis S. Hudson III hold after the reported sale?

Following the reported sale, Dennis S. Hudson III directly holds 220,854 shares of Seacoast Banking common stock. The filing also lists additional indirect holdings through a family partnership and a spouse’s trust, which are separate from his direct position.

At what prices were Dennis S. Hudson III’s SBCF shares sold on June 16, 2026?

The filing reports a weighted average sale price of $31.41 per share for the 8,000 shares sold. It notes that individual trades occurred at prices ranging from $31.20 to $31.64, and detailed breakdowns are available upon request to the company or regulators.

What stock options on Seacoast Banking (SBCF) does Dennis S. Hudson III still hold?

He continues to hold stock options covering 78,021 underlying shares at an exercise price of $28.69 expiring April 1, 2027. He also holds options on 55,279 underlying shares at an exercise price of $31.15 expiring April 1, 2028, all reported as direct holdings.

What indirect SBCF holdings are reported for Dennis S. Hudson III on this Form 4?

The Form 4 shows indirect ownership of Seacoast Banking shares held by Sherwood Partners, Ltd., a family partnership, and by his spouse in a trust. These positions are reported as indirect holdings, separate from his directly owned shares and stock options.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/17/2026 - 04:38 PM

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

HUDSON DENNIS S III

(Last)

(First)

(Middle)

P.O. BOX 9012

815 COLORADO AVENUE

(Street)

STUART

FLORIDA

34995-9012

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
SEACOAST BANKING CORP OF FLORIDA [ SBCF ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/16/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	06/16/2026		S⁽¹⁾		8,000	D	$31.41⁽²⁾	220,854	D⁽³⁾
Common Stock								18,104	D⁽⁴⁾
Common Stock								34,315.537	D⁽⁵⁾
Common Stock								9,356	D⁽⁶⁾
Common Stock								21,867	I	Held by Spouse in Trust
Common Stock								51,416	I	Held by Sherwood Partners, Ltd, family partnership

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock Right to Buy⁽⁷⁾	$31.15							⁽⁸⁾	04/01/2028	Common Stock	55,279		55,279	D
Common Stock Right to Buy⁽⁷⁾	$28.69							⁽⁸⁾	04/01/2027	Common Stock	78,021		78,021	D

Explanation of Responses:

1. Shares sold were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 21, 2025

2. 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

3. Shares held in Trust

4. Shares held jointly with spouse

5. Represents shares held in the Company's Retirement Savings Plan as of March 31, 2026

6. Held in IRA

7. Granted pursuant to Company's 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

Remarks:

	/s/ Dennis S. Hudson, III	06/17/2026
	** Signature of Reporting Person	Date
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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR