Mariner’s ECB Bancorp ECBK Stock Holding History

Mariner’s Portfolio ECBK Stock Details ECBK Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q3	$270K	Buy	13,283 +303	+2%	+$6.22K	﹤0.01%	2904
2026 Q2	$261K	Buy	12,980 +93	+0.7%	+$1.72K	﹤0.01%	2949
2026 Q1	$216K	Buy	12,887 +1,328	+11%	+$23K	﹤0.01%	3129
2025 Q4	$201K	Sell	11,559 -879	-7%	-$14.6K	﹤0.01%	3166
2025 Q3	$197K	Buy	12,438 +2,173	+21%	+$35.3K	﹤0.01%	3184
2025 Q2	$158K	Buy	10,265 +104	+1%	+$1.63K	﹤0.01%	3125
2025 Q1	$154K	Buy	10,161 +161	+2%	+$2.33K	﹤0.01%	3085
2024 Q4	$148K	Hold	10,000	–	–	﹤0.01%	3092
2024 Q3	$143K	Hold	10,000	–	–	﹤0.01%	3018
2024 Q2	$125K	Hold	10,000	–	–	﹤0.01%	2909
2024 Q1	$130K	Hold	10,000	–	–	﹤0.01%	2876
2023 Q4	$126K	Hold	10,000	–	–	﹤0.01%	2811
2023 Q3	$110K	Hold	10,000	–	–	﹤0.01%	2660
2023 Q2	$131K	Hold	10,000	–	–	﹤0.01%	2579
2023 Q1	$139K	Hold	10,000	–	–	﹤0.01%	2505
2022 Q4	$160K	Hold	10,000	–	–	﹤0.01%	2406
2022 Q3	$144K	Buy	+10,000	New	+$142K	﹤0.01%	2124

Other funds holding ECBK

Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return

Oppenheimer & Close New York $163M AUM 22.88% 1-Year Est. Return

Renaissance Technologies New York $73.4B AUM 32.8% 1-Year Est. Return

HighTower Advisors Chicago, Illinois $106B AUM 21.33% 1-Year Est. Return

Grimes & Company Westborough, Massachusetts $4.26B AUM 24.58% 1-Year Est. Return

Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return

Nuveen Charlotte, North Carolina $420B AUM 34.97% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return

RhumbLine Advisers Boston, Massachusetts $134B AUM 35.21% 1-Year Est. Return

Mariner's ECBK Position: Q3 2026 in Review

Mariner increased its ECB Bancorp (ECBK) stake by 2.3% in Q3 2026, buying an estimated $6.22K and bringing the position to 13,283 shares worth $270K. The position accounts for ﹤0.01% of the portfolio, ranked #2904.

Mariner first reported a position in ECBK in Q3 2022 and has held it in 17 quarters since. 41 funds tracked by Wall St. Rank hold ECBK as of Q3 2026.

Mariner held 13,283 shares of ECB Bancorp worth $270K as of Q3 2026.
Mariner bought 303 ECB Bancorp shares in Q3 2026, an estimated $6.22K.
ECB Bancorp made up ﹤0.01% of Mariner's portfolio in Q3 2026, its #2904 holding.
Mariner first reported a position in ECB Bancorp in Q3 2022 and has held it in 17 quarters since.
41 funds tracked by Wall St. Rank held ECB Bancorp as of Q3 2026.

Based on Mariner's 13F filing for Q3 2026, filed 12 Nov 2026.