8-K filed June 29, 2026, 4:01 PM ET CIK 0002115119

leadership confidence high sentiment neutral materiality 0.60

Columbia Financial appoints four Northfield directors to board, effective upon merger close

Columbia Financial, Inc./MD/

Board size increased from 9 to 13 effective at merger completion.
Appointed John P. Connors Jr., Timothy C. Harrison, Steven M. Klein, and Paul V. Stahlin as directors.
Columbia Bank board also expanded from 11 to 15; same directors appointed to bank board.
None of the appointees assigned to board committees at this time.
All appointments are contingent on closing of merger with Northfield Bancorp.

item 5.02

Executive movements

Machine-extracted from this filing. Every card cites the SEC source. See all recent executive movements.

Appointed

John P. Connors, Jr.

Director

Columbia Financial, Inc./MD/

Filed: June 29, 2026, 4:01 PM ET

appointed current Northfield directors John P. Connors, Jr., Timothy C. Harrison, Steven M. Klein, and Paul V. Stahlin to the Company’s board of directors as the Northfield Continuing Directors, subject to and effective upon the completion of the Merger.

Appointed

Steven M. Klein

Director

Columbia Financial, Inc./MD/

Filed: June 29, 2026, 4:01 PM ET

appointed current Northfield directors John P. Connors, Jr., Timothy C. Harrison, Steven M. Klein, and Paul V. Stahlin to the Company’s board of directors as the Northfield Continuing Directors, subject to and effective upon the completion of the Merger.

Appointed

Timothy C. Harrison

Director

Columbia Financial, Inc./MD/

Filed: June 29, 2026, 4:01 PM ET

appointed current Northfield directors John P. Connors, Jr., Timothy C. Harrison, Steven M. Klein, and Paul V. Stahlin to the Company’s board of directors as the Northfield Continuing Directors, subject to and effective upon the completion of the Merger.

Appointed

Paul V. Stahlin

Director

Columbia Financial, Inc./MD/

Filed: June 29, 2026, 4:01 PM ET

appointed current Northfield directors John P. Connors, Jr., Timothy C. Harrison, Steven M. Klein, and Paul V. Stahlin to the Company’s board of directors as the Northfield Continuing Directors, subject to and effective upon the completion of the Merger.

Key facts

Extracted from this filing and checked against the source text.

Executive change SEC 8-K Item 5.02 confidence 0.95

John P. Connors, Jr. was appointed as Director at Columbia Financial, Inc./MD/.

Action: appointed
Role: Director

Exact text from the filing

appointed current Northfield directors John P. Connors, Jr., Timothy C. Harrison, Steven M. Klein, and Paul V. Stahlin to the Company’s board of directors as the Northfield Continuing Directors, subject to and effective upon the completion of the Merger.

View on SEC.gov

Executive change SEC 8-K Item 5.02 confidence 0.95

Steven M. Klein was appointed as Director at Columbia Financial, Inc./MD/.

Action: appointed
Role: Director

Exact text from the filing

appointed current Northfield directors John P. Connors, Jr., Timothy C. Harrison, Steven M. Klein, and Paul V. Stahlin to the Company’s board of directors as the Northfield Continuing Directors, subject to and effective upon the completion of the Merger.

View on SEC.gov

Executive change SEC 8-K Item 5.02 confidence 0.95

Timothy C. Harrison was appointed as Director at Columbia Financial, Inc./MD/.

Action: appointed
Role: Director

Exact text from the filing

appointed current Northfield directors John P. Connors, Jr., Timothy C. Harrison, Steven M. Klein, and Paul V. Stahlin to the Company’s board of directors as the Northfield Continuing Directors, subject to and effective upon the completion of the Merger.

View on SEC.gov

Executive change SEC 8-K Item 5.02 confidence 0.95

Paul V. Stahlin was appointed as Director at Columbia Financial, Inc./MD/.

Action: appointed
Role: Director

Exact text from the filing

appointed current Northfield directors John P. Connors, Jr., Timothy C. Harrison, Steven M. Klein, and Paul V. Stahlin to the Company’s board of directors as the Northfield Continuing Directors, subject to and effective upon the completion of the Merger.

View on SEC.gov

Source: SEC EDGAR

accession 0002115119-26-000007

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