[SCHEDULE 13G/A] Blue Foundry Bancorp SEC Filing

Rhea-AI Filing Summary

Driehaus Capital Management LLC reports beneficial ownership of 400,997 shares of Blue Foundry Bancorp common stock, representing 1.87% of the class. The filing indicates shared voting and dispositive power over these shares (no sole voting or dispositive power) and states the securities are held in the ordinary course of business and not to influence control of the issuer. The filing identifies Blue Foundry Bancorp's principal office in Rutherford, New Jersey, and lists Driehaus address in Chicago, Illinois. The statement is signed by Janet McWilliams, General Counsel, dated 09/10/2025.

Insights

Securities Analyst

TL;DR: Routine Schedule 13G/A reporting a sub-5% passive stake, limited immediate governance impact.

The filing discloses a 1.87% position held with shared voting and dispositive power, which under SEC rules typically indicates a passive investor or investment adviser reporting under Rule 13d-1(b). Because the stake is below 5%, there is no presumption of intent to influence control, and the certification reiterates ordinary-course holdings. For investors, this is a transparency event rather than a signal of strategic change; it neither alters board dynamics nor implies an imminent corporate action based on disclosed facts.

Corporate Governance Expert

TL;DR: Disclosed ownership is material for record-keeping but unlikely to affect corporate governance given size and stated intent.

The report shows shared voting/dispositive power for 400,997 shares, suggesting the reporting entity exercises influence through pooled or advisory arrangements rather than unilateral control. The explicit certification that shares are not held to change control aligns with Schedule 13G reporting practices. From a governance perspective, this filing does not trigger heightened disclosure or change-of-control considerations based solely on the provided information.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

Blue Foundry Bancorp

(Name of Issuer)

Common Stock

(Title of Class of Securities)

09549B104

(CUSIP Number)

08/29/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 09549B104

1

Names of Reporting Persons

DRIEHAUS CAPITAL MANAGEMENT LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 400,997.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 400,997.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

400,997.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

1.87 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Blue Foundry Bancorp
(b)	Address of issuer's principal executive offices: 19 Park Avenue, Rutherford, New Jersey, 07070
Item 2.
(a)	Name of person filing: Driehaus Capital Management LLC
(b)	Address or principal business office or, if none, residence: 25 East Erie Street Chicago, Illinois 60611
(c)	Citizenship: Delaware, USA
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 09549B104
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 400,997
(b)	Percent of class: 1.87 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 400,997
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 400,997
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

DRIEHAUS CAPITAL MANAGEMENT LLC

Signature:	Janet McWilliams
Name/Title:	Janet McWilliams/General Counsel
Date:	09/10/2025

FAQ

What stake does Driehaus Capital Management hold in Blue Foundry Bancorp (BLFY)?

Driehaus reports beneficial ownership of 400,997 shares, representing 1.87% of BLFY common stock.

Does Driehaus have sole voting or dispositive power over these BLFY shares?

No. The filing shows 0 shares with sole voting or dispositive power and 400,997 shares with shared voting and dispositive power.

Was the Driehaus position reported as intended to influence control of Blue Foundry Bancorp?

No. The filing includes a certification that the securities are held in the ordinary course of business and not to change or influence control.

When was the Schedule 13G/A signed and by whom?

The filing is signed by Janet McWilliams, General Counsel, dated 09/10/2025.

Where are the issuer and reporting person located?

Blue Foundry Bancorp's principal office is listed in Rutherford, New Jersey; Driehaus Capital Management's address is Chicago, Illinois and its place of organization is Delaware.