XT
OSBC icon

XTX Topco’s Old Second Bancorp OSBC Stock Holding History

XTX Topco’s Portfolio OSBC Stock Details OSBC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$213K Buy
+10,590
New +$212K ﹤0.01% 2799
2025
Q2 		– Sell
-15,541
Closed -$259K – 2953
2025
Q1 		$259K Buy
15,541
+3,509
+29% +$62.8K 0.01% 1516
2024
Q4 		$214K Buy
+12,032
New +$209K 0.02% 1502

Other funds holding OSBC

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
DAM
Davis Asset Management Sausalito, California $3.46B AUM 9.77% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
FCM
FJ Capital Management Mclean, Virginia $888M AUM 18.97% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

XTX Topco's OSBC Position: Q1 2026 in Review

XTX Topco opened a new position in Old Second Bancorp (OSBC) in Q1 2026: 10,590 shares worth $213K. The stake represents ﹤0.01% of the portfolio and ranks #2799 among its holdings. This is a return to the name: XTX Topco previously reported a position in OSBC as recently as Q1 2025.

XTX Topco first reported a position in OSBC in Q4 2024 and has held it in 3 quarters since. The position peaked at $259K in Q1 2025. 188 funds tracked by Wall St. Rank hold OSBC as of Q1 2026.

  • XTX Topco held 10,590 shares of Old Second Bancorp worth $213K as of Q1 2026.
  • Old Second Bancorp was a new XTX Topco position in Q1 2026.
  • Old Second Bancorp made up ﹤0.01% of XTX Topco's portfolio in Q1 2026, its #2799 holding.
  • XTX Topco first reported a position in Old Second Bancorp in Q4 2024 and has held it in 3 quarters since.
  • XTX Topco's Old Second Bancorp position peaked at $259K in Q1 2025.
  • 188 funds tracked by Wall St. Rank held Old Second Bancorp as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.