BROOKLINE BANCORP INC (BRKL) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2025-09-01

BROOKLINE BANCORP INC (BRKL) — no SEC Form 4 insider filings recorded in the last 90 days. InsiderAlpha tracks every BRKL SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About BROOKLINE BANCORP INC (BRKL)

SEC CIK	0001049782

Recent BRKL Insider Transactions (Form 4)

Date	Insider	Role	Transaction	Shares	Price	Value	Filing
2025-09-01	NOWAK BOGDAN	Director	D — Derivative transaction	22.3K	—	—	SEC
2025-09-01	Hollister Thomas J	Director	D — Derivative transaction	2.3K	—	—	SEC
2025-09-01	SHERMAN MERRILL W	Director	D — Derivative transaction	55.8K	—	—	SEC
2025-09-01	NOWAK BOGDAN	Director	D — Derivative transaction	255.6K	—	—	SEC
2025-09-01	Hollister Thomas J	Director	D — Derivative transaction	52.3K	—	—	SEC
2025-09-01	Hollister Thomas J	Director	D — Derivative transaction	7.8K	—	—	SEC
2025-09-01	Fitzgerald Margaret Boles	Director	D — Derivative transaction	1.0K	—	—	SEC
2025-09-01	Carlson Carl M	Co-President CFO	D — Derivative transaction	156.7K	—	—	SEC
2025-09-01	Brooks Janytra M	Chief Human Resources Officer	D — Derivative transaction	36.9K	—	—	SEC
2025-09-01	NOWAK BOGDAN	Director	D — Derivative transaction	245.7K	—	—	SEC
2025-09-01	Tsonos William C	CEO Bank Rhode Island	D — Derivative transaction	38.0K	—	—	SEC
2025-09-01	Fitzgerald Margaret Boles	Director	D — Derivative transaction	38.3K	—	—	SEC
2025-09-01	Fitzgerald Margaret Boles	Director	D — Derivative transaction	650	—	—	SEC
2025-09-01	Fitzgerald Margaret Boles	Director	D — Derivative transaction	1.0K	—	—	SEC
2025-09-01	Chang Joanne B.	Director	D — Derivative transaction	24.9K	—	—	SEC

All transactions sourced from SEC EDGAR Form 4 filings for BROOKLINE BANCORP INC (BRKL). Updated in real time as new filings are submitted to the SEC.

Recent Insider Filings

2025-09-01 — SHERMAN MERRILL W (Director)
2025-09-01 — Brooks Janytra M (Chief Human Resources Officer)
2025-09-01 — Carlson Carl M (Co-President CFO)
2025-09-01 — Fitzgerald Margaret Boles (Director)
2025-09-01 — NOWAK BOGDAN (Director)

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in BRKL insider filings:

P	Open-market purchase by the insider
S	Open-market sale by the insider
A	Grant, award, or other acquisition from the issuer
M	Exercise or conversion of derivative security (e.g. options)
F	Payment of exercise price or tax liability via share withholding
G	Bona-fide gift of securities
D	Disposition to the issuer (e.g. share buyback participation)
J	Other acquisition or disposition
X	Exercise of in-the-money or at-the-money derivative security
C	Conversion of derivative security
V	Transaction voluntarily reported earlier than required

BRKL Insider Trading — FAQ

What is the latest insider trade for BRKL?: BROOKLINE BANCORP INC (BRKL) had 0 insider filings in the last 90 days, with the most recent on 2025-09-01. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying BRKL stock?: 0 insider purchases of BRKL were filed in the last 90 days.
How many insiders are selling BRKL stock?: 0 insider sales of BRKL were filed in the last 90 days.
Where can I see BRKL SEC filings (Form 4, 10-K, 10-Q, 8-K)?: InsiderAlpha aggregates every BRKL SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

Learn More

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