Mariner’s Brookline Bancorp BRKL Stock Holding History

Mariner’s Portfolio BRKL Stock Details BRKL Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q3	–	Sell	-40,190	Closed	-$424K	–	3578
2025 Q2	$424K	Buy	40,190 +3,918	+11%	+$40.7K	﹤0.01%	2468
2025 Q1	$395K	Buy	36,272 +1,318	+4%	+$15.4K	﹤0.01%	2393
2024 Q4	$412K	Buy	34,954 +2,194	+7%	+$25.4K	﹤0.01%	2350
2024 Q3	$330K	Sell	32,760 -833	-2%	-$8.18K	﹤0.01%	2487
2024 Q2	$281K	Sell	33,593 -5,173	-13%	-$45.4K	﹤0.01%	2509
2024 Q1	$386K	Buy	38,766 +17,137	+79%	+$173K	﹤0.01%	2233
2023 Q4	$236K	Buy	21,629 +1,974	+10%	+$18.7K	﹤0.01%	2553
2023 Q3	$179K	Buy	19,655 +6,017	+44%	+$58.2K	﹤0.01%	2545
2023 Q2	$119K	Sell	13,638 -743	-5%	-$6.78K	﹤0.01%	2594
2023 Q1	$151K	Buy	+14,381	New	+$181K	﹤0.01%	2480

Other funds holding BRKL

BIG

Brooklyn Investment Group Brooklyn, New York $3.2B AUM 26.32% 1-Year Est. Return

Osaic Holdings Scottsdale, Arizona $68.3B AUM 20.5% 1-Year Est. Return

IFP Advisors Tampa, Florida $5.54B AUM 27.43% 1-Year Est. Return

Mariner's BRKL Position: Q3 2025 in Review

Mariner sold out of Brookline Bancorp (BRKL) in Q3 2025, closing a stake of 40,190 shares — an estimated $424K sold.

Mariner first reported a position in BRKL in Q1 2023 and held it in 10 quarters. The position peaked at $424K in Q2 2025. 3 funds tracked by Wall St. Rank hold BRKL as of Q3 2025.

Mariner reported no remaining Brookline Bancorp position as of Q3 2025 after selling out during the quarter.
Mariner sold 40,190 Brookline Bancorp shares in Q3 2025, an estimated $424K.
Mariner first reported a position in Brookline Bancorp in Q1 2023 and held it in 10 quarters.
Mariner's Brookline Bancorp position peaked at $424K in Q2 2025.
3 funds tracked by Wall St. Rank held Brookline Bancorp as of Q3 2025.

Based on Mariner's 13F filing for Q3 2025, filed 14 Nov 2025.