American Century Companies
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American Century Companies’s NB Bancorp NBBK Stock Holding History

American Century Companies’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
Q1 		$5.56M Buy
263,656
+41,801
+19% +$879K ﹤0.01% 1731
2025
Q4 		$4.4M Buy
221,855
+84,542
+62% +$1.61M ﹤0.01% 1778
2025
Q3 		$2.42M Buy
137,313
+75,378
+122% +$1.38M ﹤0.01% 1997
2025
Q2 		$1.11M Buy
61,935
+36,238
+141% +$612K ﹤0.01% 2250
2025
Q1 		$464K Buy
25,697
+1,903
+8% +$35.4K ﹤0.01% 2535
2024
Q4 		$430K Buy
23,794
+9,612
+68% +$185K ﹤0.01% 2552
2024
Q3 		$263K Buy
+14,182
New +$251K ﹤0.01% 2692

Other funds holding NBBK

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
PP
Pertento Partners London, United Kingdom $1.37B AUM 36.36% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
AC
AltraVue Capital Bellevue, Washington $1.16B AUM 46.45% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
TCM
Tieton Capital Management Yakima, Washington $299M AUM 54.55% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

American Century Companies's NBBK Position: Q1 2026 in Review

American Century Companies increased its NB Bancorp (NBBK) stake by 19% in Q1 2026, buying an estimated $879K and bringing the position to 263,656 shares worth $5.56M. The position accounts for ﹤0.01% of the portfolio, ranked #1731.

American Century Companies first reported a position in NBBK in Q3 2024 and has held it in 7 quarters since. 176 funds tracked by Wall St. Rank hold NBBK as of Q1 2026.

  • American Century Companies held 263,656 shares of NB Bancorp worth $5.56M as of Q1 2026.
  • American Century Companies bought 41,801 NB Bancorp shares in Q1 2026, an estimated $879K.
  • NB Bancorp made up ﹤0.01% of American Century Companies's portfolio in Q1 2026, its #1731 holding.
  • American Century Companies first reported a position in NB Bancorp in Q3 2024 and has held it in 7 quarters since.
  • 176 funds tracked by Wall St. Rank held NB Bancorp as of Q1 2026.

Based on American Century Companies's 13F filing for Q1 2026, filed 15 May 2026.