Marshall Wace’s CoastalSouth Bancshares COSO Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$379K Sell
14,128
-10,375
-42% -$268K ﹤0.01% 2619
2026
Q1
$603K Sell
24,503
-27,958
-53% -$678K ﹤0.01% 2361
2025
Q4
$1.22M Buy
+52,461
New +$1.17M ﹤0.01% 1831

Other funds holding COSO

Marshall Wace's COSO Position: Q2 2026 in Review

Marshall Wace reduced its CoastalSouth Bancshares (COSO) stake by 42% in Q2 2026, selling an estimated $268K and leaving 14,128 shares worth $379K. The position accounts for ﹤0.01% of the portfolio, ranked #2619.

Marshall Wace first reported a position in COSO in Q4 2025 and has held it in 3 quarters since. The position peaked at $1.22M in Q4 2025. 100 funds tracked by Wall St. Rank hold COSO as of Q2 2026.

  • Marshall Wace held 14,128 shares of CoastalSouth Bancshares worth $379K as of Q2 2026.
  • Marshall Wace sold 10,375 CoastalSouth Bancshares shares in Q2 2026, an estimated $268K.
  • CoastalSouth Bancshares made up ﹤0.01% of Marshall Wace's portfolio in Q2 2026, its #2619 holding.
  • Marshall Wace first reported a position in CoastalSouth Bancshares in Q4 2025 and has held it in 3 quarters since.
  • Marshall Wace's CoastalSouth Bancshares position peaked at $1.22M in Q4 2025.
  • 100 funds tracked by Wall St. Rank held CoastalSouth Bancshares as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.