Wellington Management Group’s NB Bancorp NBBK Stock Holding History

Wellington Management Group’s Portfolio NBBK Stock Details NBBK Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	–	Sell	-710,000	Closed	-$15M	–	2022
2026 Q1	$15M	Sell	710,000 -761,189	-52%	-$16M	﹤0.01%	1128
2025 Q4	$29.2M	Sell	1,471,189 -355,750	-19%	-$6.77M	0.01%	897
2025 Q3	$32.2M	Sell	1,826,939 -33,650	-2%	-$617K	0.01%	855
2025 Q2	$33.2M	Buy	1,860,589 +250,000	+16%	+$4.22M	0.01%	794
2025 Q1	$29.1M	Buy	1,610,589 +116,988	+8%	+$2.18M	0.01%	839
2024 Q4	$27M	Hold	1,493,601	–	–	﹤0.01%	881
2024 Q3	$27.7M	Buy	1,493,601 +290,818	+24%	+$5.14M	﹤0.01%	866
2024 Q2	$18.1M	Buy	1,202,783 +1,005,486	+510%	+$14.6M	﹤0.01%	987
2024 Q1	$2.7M	Sell	197,297 -340,424	-63%	-$4.76M	﹤0.01%	1460
2023 Q4	$7.23M	Buy	+537,721	New	+$7.32M	﹤0.01%	1204

Other funds holding NBBK

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

AltraVue Capital Bellevue, Washington $1.39B AUM 53.77% 1-Year Est. Return

Pertento Partners London, United Kingdom $1.86B AUM 53.86% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

TCM

Tieton Capital Management Yakima, Washington $348M AUM 45.13% 1-Year Est. Return

Hotchkis & Wiley Capital Management Los Angeles, California $34.3B AUM 22.63% 1-Year Est. Return

Wellington Management Group's NBBK Position: Q2 2026 in Review

Wellington Management Group sold out of NB Bancorp (NBBK) in Q2 2026, closing a stake of 710,000 shares — an estimated $15M sold.

Wellington Management Group first reported a position in NBBK in Q4 2023 and held it in 10 quarters. The position peaked at $33.2M in Q2 2025. 161 funds tracked by Wall St. Rank hold NBBK as of Q2 2026.

Wellington Management Group reported no remaining NB Bancorp position as of Q2 2026 after selling out during the quarter.
Wellington Management Group sold 710,000 NB Bancorp shares in Q2 2026, an estimated $15M.
Wellington Management Group first reported a position in NB Bancorp in Q4 2023 and held it in 10 quarters.
Wellington Management Group's NB Bancorp position peaked at $33.2M in Q2 2025.
161 funds tracked by Wall St. Rank held NB Bancorp as of Q2 2026.

Based on Wellington Management Group's 13F filing for Q2 2026, filed 14 Aug 2026.