Columbia Financial director buys 20,000 CLBK shares

Lucy Sorrentini, a director of Columbia Financial, Inc., purchased 20,000 shares of Common Stock on July 20, 2026 at $10.00 per share, held indirectly through an IRA, bringing that IRA position to 20,000 shares.

Rhea-AI Filing Summary

Lucy Sorrentini, a director of Columbia Financial, Inc., purchased 20,000 shares of Common Stock on July 20, 2026 at $10.00 per share, held indirectly through an IRA, bringing that IRA position to 20,000 shares. She also reports 32,716 shares held directly, 16,896 shares held through a Stock-Based Deferral Plan, and 6,494 shares held via Stock Awards granted under the 2019 Equity Incentive Plan that vest in one year on March 12, 2027. The Rule 10b5-1 checkbox is not marked as a trading plan.

Insider Trade Summary

Net Buyer: 20,000 shares

Net Buy 4 txns

Insider Sorrentini Lucy

Role Director

Bought 20,000 shs ($200K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	20,000	$10.00	$200K
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock F1	--	--	--

Holdings After Transaction: Common Stock — 20,000 shares (Indirect, By IRA); Common Stock — 32,716 shares (Direct); Common Stock — 16,896 shares (Indirect, By Stock-Based Deferral Plan); Common Stock — 6,494 shares (Indirect, By Stock Award V)

Footnotes (1)

1. F1. Stock Awards granted pursuant to the Columbia Financial, Inc. 2019 Equity Incentive Plan which vest in one year on March 12, 2027.

Key Figures

Shares purchased: 20,000 shares Purchase price: $10.00 per share Direct holdings after transaction: 32,716 shares +2 more

5 metrics

Shares purchased 20,000 shares Common Stock purchased on July 20, 2026 at $10.00 per share, held via IRA

Purchase price $10.00 per share Price for 20,000 Common Stock shares bought on July 20, 2026

Direct holdings after transaction 32,716 shares Common Stock held directly by Lucy Sorrentini following the reported transactions

Stock-Based Deferral Plan holdings 16,896 shares Common Stock held indirectly via Stock-Based Deferral Plan

Stock Awards vesting 2027 6,494 shares Stock Awards under the 2019 Equity Incentive Plan vesting on March 12, 2027

Key Terms

IRA, Stock-Based Deferral Plan, Stock Awards, 2019 Equity Incentive Plan, +1 more

5 terms

IRA financial

"20,000 shares of Common Stock held indirectly "By IRA" after purchase"

An individual retirement account (IRA) is a savings account designed to help people put aside money for their retirement, often with tax advantages that encourage long-term savings. It matters to investors because it can grow over time, providing financial security later in life, and offers benefits that can reduce current taxes or allow investments to compound more effectively.

Stock-Based Deferral Plan financial

"16,896 shares of Common Stock held indirectly "By Stock-Based Deferral Plan""

Stock Awards financial

"6,494 shares held indirectly "By Stock Award V" as described in the footnote"

2019 Equity Incentive Plan financial

"Stock Awards granted pursuant to the Columbia Financial, Inc. 2019 Equity Incentive Plan"

Rule 10b5-1 regulatory

"The Rule 10b5-1 checkbox is not marked as a trading plan"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

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

What did Lucy Sorrentini report buying in CLBK on July 20, 2026?

Lucy Sorrentini reported purchasing 20,000 shares of Columbia Financial (CLBK) Common Stock on July 20, 2026 at $10.00 per share, held indirectly through an IRA account.

How many Columbia Financial (CLBK) shares does Lucy Sorrentini now hold directly?

After the reported transactions, Lucy Sorrentini lists 32,716 shares of Columbia Financial (CLBK) Common Stock as directly held, separate from her indirect holdings via an IRA and stock-based plans.

What indirect Columbia Financial (CLBK) holdings does Lucy Sorrentini report?

Lucy Sorrentini reports 20,000 shares indirectly through an IRA, 16,896 shares via a Stock-Based Deferral Plan, and 6,494 shares as Stock Awards under the 2019 Equity Incentive Plan.

When do Lucy Sorrentini’s CLBK Stock Awards reported on this Form 4 vest?

The filing states that the 6,494 Stock Awards in Columbia Financial (CLBK) were granted under the 2019 Equity Incentive Plan and vest in one year on March 12, 2027.

Was Lucy Sorrentini’s CLBK stock purchase made under a Rule 10b5-1 trading plan?

The Rule 10b5-1 checkbox in the filing is not marked as a trading plan, indicating the reported Columbia Financial (CLBK) purchase was not affirmatively designated as made under a Rule 10b5-1 plan.

What total CLBK-related holding entries are disclosed for Lucy Sorrentini?

The Form 4 lists one purchase of 20,000 CLBK shares via IRA and three holding entries: 32,716 shares direct, 16,896 shares via Stock-Based Deferral Plan, and 6,494 shares via Stock Awards scheduled to vest in 2027.

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

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Accepted by SEC EDGAR 07/22/2026 - 09:22 PM Learn about SEC filing dates

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^*

Sorrentini Lucy

(Last) (First) (Middle)

19-01 ROUTE 208 NORTH

(Street)

FAIR LAWN NEW JERSEY 07410

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Columbia Financial, Inc./MD/ [ CLBK ]

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)
07/20/2026

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	07/20/2026		P		20,000	A	$10	20,000	I	By IRA
Common Stock								32,716	D
Common Stock								16,896	I	By Stock-Based Deferral Plan
Common Stock								6,494	I	By Stock Award V(1)

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. Stock Awards granted pursuant to the Columbia Financial, Inc. 2019 Equity Incentive Plan which vest in one year on March 12, 2027.

Remarks:

Exhibit List: Exhibit 24 Power of Attorney

	/s/ Thomas F. Splaine, Jr., Power of Attorney	07/22/2026
	** 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)