Coastal Financial (NASDAQ: CCB) exec uses 1,792 shares for tax withholding

Rhea-AI Filing Summary

Coastal Financial Corp director and CCBX president Brian T. Hamilton reported a tax-withholding disposition of 1,792 shares of common stock on March 30, 2026. The shares were delivered at $73.7252 per share to cover withholding taxes upon partial vesting of performance share units, under a Rule 10b5-1 trading plan.

After this transaction, Hamilton directly holds 78,108 shares, which include restricted stock units and performance-based RSUs granted under the 2018 Omnibus Incentive Plan that may vest over time and convert into common stock.

Insider Trade Summary 10b5-1

1 transaction reported

Mixed 1 txn

Insider Hamilton Brian T

Role President of CCBX

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	1,792	$73.7252	$132K

Holdings After Transaction: Common Stock — 78,108 shares (Direct)

Footnotes (1)

1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan adopted by the reporting person. Represents shares sold in payment of withholding taxes upon partial vesting of PSUs. Includes the following pursuant to the 2018 Coastal Financial Corporation Omnibus Incentive Plan: (1) 14,536 restricted stock units (RSUs) with remaining shares vesting monthly in an approximately equal amount through April 30, 2028 (2) 2,714 RSUs that vest in approximately equal installments over 4 years (3) 15,000 performance-based RSUs - eligible to vest on April 30, 2028, subject to continuous employment and achievement of return on equity that is at least 80% of company comparator peer group. (4) 502 RSUs that vest in three approximately equal annual remaining installments. Each RSU represents the right to receive one share of common stock upon vesting.

Key Figures

Shares disposed for taxes: 1,792 shares Price per share: $73.7252 per share Shares held after transaction: 78,108 shares +4 more

7 metrics

Shares disposed for taxes 1,792 shares Tax-withholding disposition on March 30, 2026

Price per share $73.7252 per share Value used for the 1,792-share tax payment

Shares held after transaction 78,108 shares Direct holdings following tax-withholding disposition

RSUs vesting monthly 14,536 RSUs Vesting monthly in approximately equal amounts through April 30, 2028

Four-year RSU grant 2,714 RSUs Vest in approximately equal installments over 4 years

Performance-based RSUs 15,000 RSUs Eligible to vest on April 30, 2028, subject to conditions

Additional RSUs 502 RSUs Vest in three approximately equal annual remaining installments

Key Terms

Rule 10b5-1 plan, withholding taxes, performance share units, restricted stock units (RSUs), +2 more

6 terms

Rule 10b5-1 plan financial

"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan adopted by the reporting person."

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

withholding taxes financial

"Represents shares sold in payment of withholding taxes upon partial vesting of PSUs."

Withholding taxes are amounts a payer or government takes out of payments — such as wages, interest, or dividends — before the recipient gets the money, functioning like a cashier keeping part of a bill to pay taxes on your behalf. For investors this matters because it reduces the cash they actually receive, affects net returns and yield calculations, and may require additional paperwork or treaty claims to recover or offset the withheld amount against final tax bills.

performance share units financial

"Represents shares sold in payment of withholding taxes upon partial vesting of PSUs."

Performance share units are a type of company stock award given to employees that depend on the company meeting specific goals or targets. If these goals are achieved, the employee receives shares or the value of shares; if not, they may receive little or no compensation. This aligns employees’ interests with the company's success and encourages performance that benefits investors.

restricted stock units (RSUs) financial

"Includes the following pursuant to the 2018 Coastal Financial Corporation Omnibus Incentive Plan: (1) 14,536 restricted stock units (RSUs)"

Restricted stock units (RSUs) are a type of company promise to give employees shares of stock in the future, usually after certain conditions like working for a set time. They are like a gift promised today that you receive later, which can become valuable if the company's stock price goes up. RSUs matter because they are a way companies reward employees and can be a significant part of compensation.

performance-based RSUs financial

"15,000 performance-based RSUs - eligible to vest on April 30, 2028, subject to continuous employment"

Performance-based restricted stock units (RSUs) are promises to deliver company shares to employees only if the business meets specific goals, such as revenue, profit, stock-price targets, or strategic milestones. For investors, they matter because they change future share supply and align management incentives with company results—like a salesperson whose bonus only pays out when sales targets are hit—so they can affect earnings, dilution, and confidence in leadership.

Omnibus Incentive Plan financial

"Includes the following pursuant to the 2018 Coastal Financial Corporation Omnibus Incentive Plan"

An omnibus incentive plan is a single, flexible program a company uses to give employees and executives different types of pay tied to performance — for example stock options, restricted shares, cash bonuses and other awards — all governed by one set of rules. It matters to investors because it determines how many new shares may be created, how leaders are motivated and how much the company will spend on compensation over time; think of it as a master toolbox that affects both costs and the total share supply.

Form 4 Insider Transactions: What Each Field Means →

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).

X

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^*

Hamilton Brian T

(Last) (First) (Middle)

5415 EVERGREEN WAY

(Street)

EVERETT WASHINGTON 98203

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
COASTAL FINANCIAL CORP [ CCB ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/30/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/30/2026		F		1,792(1)(2)	D	$73.7252	78,108(3)	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan adopted by the reporting person.

2. Represents shares sold in payment of withholding taxes upon partial vesting of PSUs.

3. Includes the following pursuant to the 2018 Coastal Financial Corporation Omnibus Incentive Plan: (1) 14,536 restricted stock units (RSUs) with remaining shares vesting monthly in an approximately equal amount through April 30, 2028 (2) 2,714 RSUs that vest in approximately equal installments over 4 years (3) 15,000 performance-based RSUs - eligible to vest on April 30, 2028, subject to continuous employment and achievement of return on equity that is at least 80% of company comparator peer group. (4) 502 RSUs that vest in three approximately equal annual remaining installments. Each RSU represents the right to receive one share of common stock upon vesting.

Remarks:

	/s/ Melisa Nelson, as Attorney-in-fact	03/31/2026
	** 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)

FAQ

What insider transaction did CCB director Brian T. Hamilton report?

Brian T. Hamilton reported disposing of 1,792 shares of Coastal Financial common stock. The shares were used to pay withholding taxes tied to partial vesting of performance share units, rather than an open-market sale, and were effected under a pre-established Rule 10b5-1 trading plan.

Why were 1,792 CCB shares disposed of in this filing?

The 1,792 shares were disposed of to satisfy withholding taxes on partially vested performance share units. Instead of paying taxes in cash, shares were delivered at $73.7252 per share, a common mechanism when equity awards vest under an incentive compensation plan.

Was the CCB insider transaction an open-market sale of shares?

No, the filing describes a tax-withholding disposition, not a typical open-market sale. Shares were sold in payment of withholding taxes upon partial vesting of performance share units, under a Rule 10b5-1 plan adopted by the reporting person for pre-planned transactions.

How many CCB shares does Brian T. Hamilton hold after this transaction?

Following the tax-withholding disposition, Brian T. Hamilton directly holds 78,108 shares of Coastal Financial common stock. This figure includes time-based and performance-based restricted stock units that can settle into common shares as they vest under the 2018 Omnibus Incentive Plan.

What equity awards are included in Brian T. Hamilton’s CCB holdings?

Hamilton’s holdings include 14,536 RSUs vesting monthly through April 30, 2028, 2,714 RSUs vesting over four years, 15,000 performance-based RSUs eligible to vest on April 30, 2028, and 502 RSUs vesting in three annual installments, each representing one share upon vesting.

What is the significance of the Rule 10b5-1 plan in this CCB filing?

The filing notes that the reported sales occurred under a Rule 10b5-1 plan adopted by the insider. Such plans pre-schedule transactions, indicating the timing of this tax-withholding disposition was set in advance rather than being based on real-time market conditions or discretionary trading decisions.