InsiderTrades

Form 4 for EBC Eastern Bankshares, Inc.

Accepted 2026-03-03 00:00:00 ET · period of report 2026-03-01 · accession 0001193125-26-088426 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
DM 2026-03-03 2026-03-01 EBC Westermann Donald Michael CIO F - Tax $19.56 -8,971 28.7K -24% -$175.5K
D 2026-03-03 2026-03-01 EBC Westermann Donald Michael CIO M - OptEx $0.00 +14.4K 35.2K +69% $0
D 2026-03-03 2026-03-01 EBC Westermann Donald Michael CIO A - Grant $0.00 +5,520 34.2K +19% $0
D 2026-03-03 2026-03-02 EBC Westermann Donald Michael CIO A - Grant $0.00 +7,099 7,099 New $0
DM 2026-03-03 2026-03-01 EBC Westermann Donald Michael CIO M - OptEx $0.00 -14.4K 2,895 -83% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-03-01 F D 2,449 $19.56 31,768 D — —
2 Common Common Stock 2026-03-01 M A 14,359 $0.00 35,219 D — — (F1) Restricted stock units convert into common stock on a one-for-one basis.
3 Common Common Stock 2026-03-01 F D 6,522 $19.56 28,697 D — —
4 Common Common Stock 2026-03-01 A A 5,520 $0.00 34,217 D — — (F9) Represents shares of Eastern Bankshares, Inc. (the "Company") common stock, par value $0.01 per share ("Common Stock") received upon vesting of a performance restricted stock unit ("PRSU") award eligible to vest based upon the Company's performance on total shareholder return ("TSR") measured at the end of the three-year performance period of January 1, 2023 through December 31, 2025 (the "Performance Period") relative to TSR performance over that performance period of the banks listed on the KBW Nasdaq Regional Banking Index (the "TSR Measure"). The Compensation and Human Capital Management Committee determined that the Company's performance of the TSR Measure resulted in a payout of 93.1% of target.
5 Derivative Restricted Stock Units 2026-03-02 A A 7,099 $0.00 7,099 D — · — to — 7,099 Common stock (F3) Each restricted stock unit represents a contingent right to receive one share of EBC common stock on the applicable vesting date. (F8) On March 2, 2026, the reporting person was granted 7,099 restricted stock units that vest in three equal annual installments beginning March 2, 2027, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date.
6 Derivative Restricted Stock Units 2026-03-01 M D 9,488 $0.00 9,488 D — · — to — 9,488 Common stock (F1) Restricted stock units convert into common stock on a one-for-one basis. (F4) On March 1, 2022, the reporting person was granted 47,438 restricted stock units that vest in five equal annual installments beginning March 1, 2023, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date.
7 Derivative Restricted Stock Units 2026-03-01 M D 1,977 $0.00 0 D — · — to — 1,977 Common stock (F1) Restricted stock units convert into common stock on a one-for-one basis. (F5) On March 1, 2023, the reporting person was granted 5,930 restricted stock units that vest in three equal annual installments beginning March 1, 2024, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date.
8 Derivative Restricted Stock Units 2026-03-01 M D 2,894 $0.00 2,895 D — · — to — 2,894 Common stock (F1) Restricted stock units convert into common stock on a one-for-one basis. (F6) On March 1, 2024, the reporting person was granted 8,683 restricted stock units that vest in three equal annual installments beginning March 1, 2025, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date.