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BCS

Notice of Proposed Sale · 144

Eastern Bankshares, Inc.

EBCNASDAQEQUITYCurrent

Notice of Proposed Sale

Filed Aug 25, 2026Accepted Aug 25, 2026, 12:45 PM EDTFiling CIK 1810546Accession 0001959173-26-006427
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Structured filing — 144

primary_doc.xml

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Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.

Proposed-sale notice

Issuer
Eastern Bankshares, Inc.
Issuer CIK
0001810546
SEC file number
001-39610
Phone
617-897-1100
Person for whose account securities are to be sold
CASEY JOSEPH F
Relationships to issuer
Director
Street
125 HIGH STREET, STE 901
Street (continued)
OLIVER STREET TOWER
City
BOSTON
State / country code
MA
Postal code
02110

Securities proposed for sale

Securities proposed for sale · 1 reported row
SecurityProposed unitsAggregate market valueUnits outstandingApproximate sale dateExchangeBroker / market maker
Common1,77840,342.82228,511,55208/25/2026NASDAQFidelity Brokerage Services LLC

Broker / market maker — proposed row 1, entry 1

Name
Fidelity Brokerage Services LLC
Street
900 Salem Street
City
Smithfield
State / country code
RI
Postal code
02917

Acquisition of securities to be sold

Acquisition of securities to be sold · 2 reported rows
SecurityAcquiredNature of acquisitionAcquired fromAmount acquiredGift transactionPayment dateNature of payment
Common05/16/2023Open Market PurchaseIssuer891N05/16/2023Cash
Common02/13/2026Open Market PurchaseIssuer887N02/13/2026Cash

Sales reported in the preceding three months

Sales reported in the preceding three months · 4 reported rows
SellerSecuritySale dateAmount soldGross proceeds
Joseph F. CaseyCommon08/19/202610,000236,200.00
Joseph F. CaseyCommon08/20/202610,000228,800.00
Joseph F. CaseyCommon08/21/202610,000229,600.00
Joseph F. CaseyCommon08/24/202610,000227,200.00

Seller — prior-sale row 1, entry 1

Name
Joseph F. Casey
Street
125 High Street
City
Boston
State / country code
MA
Postal code
02110

Seller — prior-sale row 2, entry 1

Name
Joseph F. Casey
Street
125 High Street
City
Boston
State / country code
MA
Postal code
02110

Seller — prior-sale row 3, entry 1

Name
Joseph F. Casey
Street
125 High Street
City
Boston
State / country code
MA
Postal code
02110

Seller — prior-sale row 4, entry 1

Name
Joseph F. Casey
Street
125 High Street
City
Boston
State / country code
MA
Postal code
02110

Prior-sale reporting

Nothing to report for the preceding three months
N

Notice signature

Notice date
08/25/2026
Signed
/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Joseph F. Casey
Plan adoption dates
05/19/2026

Company context

Eastern Bankshares, Inc. is the holding company for Eastern Bank. Founded in 1818, Eastern Bank is Greater Boston’s leading local bank with 109 branch locations serving communities in eastern Massachusetts, southern and coastal New Hampshire, Rhode Island and Connecticut. As of September 30, 2025, Eastern Bank had approximately $25.5 billion in assets. Eastern provides a full range of banking and wealth management solutions for consumers and businesses of all sizes including through its Cambridge Trust Wealth Management division, the largest bank-owned independent investment adviser in Massachusetts with $9.2 billion in assets under management, and takes pride in its outspoken advocacy and community support that includes more than $240 million in charitable giving since 1994. An inclusive company, Eastern is comprised of deeply committed professionals who value relationships with their customers, colleagues and communities. For investor information, visit investor.easternbank.com.

Current securities

Recent company filings

  1. Results of Operations and Financial Condition · Regulation FD DisclosureOct 22, 2026
  2. 4 filingSep 15, 2026
  3. 144 filingSep 14, 2026
  4. 4 filingSep 4, 2026
  5. 4 filingSep 4, 2026

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