Marshall Wace
MNSB icon

Marshall Wace’s MainStreet Bancshares MNSB Stock Holding History

Marshall Wace’s Portfolio MNSB Stock Details MNSB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$2.36M Buy
106,225
+61,938
+140% +$1.34M ﹤0.01% 1691
2025
Q4 		$902K Buy
44,287
+31,833
+256% +$622K ﹤0.01% 1990
2025
Q3 		$259K Buy
+12,454
New +$262K ﹤0.01% 2483

Other funds holding MNSB

BFC
Banc Funds Company Chicago, Illinois $537M AUM 17.34% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return
FL
Fourthstone LLC St Louis, Missouri $590M AUM 29.58% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
First Manhattan
First Manhattan New York $36.1B AUM 11.5% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

Marshall Wace's MNSB Position: Q1 2026 in Review

Marshall Wace increased its MainStreet Bancshares (MNSB) stake by 140% in Q1 2026, buying an estimated $1.34M and bringing the position to 106,225 shares worth $2.36M. The position accounts for ﹤0.01% of the portfolio, ranked #1691.

Marshall Wace first reported a position in MNSB in Q3 2025 and has held it in 3 quarters since. 84 funds tracked by Wall St. Rank hold MNSB as of Q1 2026.

  • Marshall Wace held 106,225 shares of MainStreet Bancshares worth $2.36M as of Q1 2026.
  • Marshall Wace bought 61,938 MainStreet Bancshares shares in Q1 2026, an estimated $1.34M.
  • MainStreet Bancshares made up ﹤0.01% of Marshall Wace's portfolio in Q1 2026, its #1691 holding.
  • Marshall Wace first reported a position in MainStreet Bancshares in Q3 2025 and has held it in 3 quarters since.
  • 84 funds tracked by Wall St. Rank held MainStreet Bancshares as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.