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Montgomery Kenneth C.

Disclosed activity across 1 company

Tapewire entity
46970
SEC CIK
0002037513

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
NB Bancorp, Inc.NBBK · Entity 4974DirectorApril 24, 2026May 15, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

NB Bancorp, Inc.

Report date April 24, 2026 · Filed May 15, 2026 · Amendment

Amendment: balances below belong to this corrected disclosure, not necessarily a complete replacement of earlier positions.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect85,140 Reported balance Holding disclosure · report date 2026-04-24 · row 1 Amendment: may correct only part of an earlier disclosure.
1 source row

Row 1 · Balance 85,140

F1: Shares of restricted stock vest 100% on January 2, 2027.

F2: Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026.

F3: On April 27, 2026, a Form 4 was mistakenly filed reporting a disposition of shares of common stock that did not in fact occur. The change in the securities beneficially owned has been corrected accordingly in this amended Form 4.

Filing footnotes · ownership attribution and instrument terms

F1: Shares of restricted stock vest 100% on January 2, 2027.

F2: Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026.

F3: On April 27, 2026, a Form 4 was mistakenly filed reporting a disposition of shares of common stock that did not in fact occur. The change in the securities beneficially owned has been corrected accordingly in this amended Form 4.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
April 24, 2026 Filed Apr 27, 2026 18:48 UTC NB Bancorp, Inc. NBBK · Entity 4974 Tax withholdingCommon Stock 5,015 $19.82 $99,397.30
Disclosure

SEC source: 0001437749-26-013435 · rdgdoc.xml · nonDerivative · entry 1

Montgomery Kenneth C. · CIK 0002037513 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,125

F1 · balance_after: Shares of restricted stock vest 100% on January 2, 2027.

F2 · balance_after: Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026.

Read SEC document
January 02, 2026 Filed Jan 6, 2026 17:26 UTC NB Bancorp, Inc. NBBK · Entity 4974 GrantCommon Stock 4,803 $0.00 $0.00
Disclosure

SEC source: 0001437749-26-000487 · rdgdoc.xml · nonDerivative · entry 1

Montgomery Kenneth C. · CIK 0002037513 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,140

F1 · shares: Shares of restricted stock vest 100% on January 2, 2027.

F2 · balance_after: Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026.

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September 12, 2025 Filed Sep 15, 2025 18:47 UTC NB Bancorp, Inc. NBBK · Entity 4974 PurchaseCommon Stock 5,000 $18.44 $92,200.00
Disclosure

SEC source: 0001437749-25-029045 · rdgdoc.xml · nonDerivative · entry 1

Montgomery Kenneth C. · CIK 0002037513 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,337

F1 · balance_after: Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026.

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April 24, 2025 Filed Apr 28, 2025 15:12 UTC NB Bancorp, Inc. NBBK · Entity 4974 GrantCommon Stock 75,237 $0.00 $0.00
Disclosure

SEC source: 0001437749-25-013264 · rdgdoc.xml · nonDerivative · entry 1

Montgomery Kenneth C. · CIK 0002037513 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,337

F1 · shares: Shares of restricted stock vest at a rate of 20% per year commencing on April 24, 2026.

Read SEC document
September 19, 2024 Filed Sep 20, 2024 19:45 UTC NB Bancorp, Inc. NBBK · Entity 4974 PurchaseCommon Stock 100 $18.62 $1,862.03
Disclosure

SEC source: 0001437749-24-029735 · rdgdoc.xml · nonDerivative · entry 1

Montgomery Kenneth C. · CIK 0002037513 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.