River Street Advisors
OSBC icon

River Street Advisors’s Old Second Bancorp OSBC Stock Holding History

River Street Advisors’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
Q3 		– Sell
-779,008
Closed -$18.2M – 183
2026
Q2 		$18.2M Buy
779,008
+32,348
+4% +$692K 5.35% 2
2026
Q1 		$15.1M Buy
746,660
+380,589
+104% +$7.64M 5.09% 3
2025
Q4 		$7.14M Sell
366,071
-17,878
-5% -$334K 2.67% 7
2025
Q3 		$6.64M Buy
+383,949
New +$6.91M 2.57% 9
2025
Q2 		– Sell
-292,611
Closed -$4.87M – 168
2025
Q1 		$4.87M Buy
292,611
+103,462
+55% +$1.85M 2.41% 10
2024
Q4 		$3.36M Buy
+189,149
New +$3.29M 1.72% 15

Other funds holding OSBC

BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
American Century Companies
American Century Companies Kansas City, Missouri $229B AUM 33.35% 1-Year Est. Return
DAM
Davis Asset Management Sausalito, California $4B AUM 6.05% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $111B AUM 30.48% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Kennedy Capital Management
Kennedy Capital Management St Louis, Missouri $5.31B AUM 40.5% 1-Year Est. Return
Banc Funds Company
Banc Funds Company Chicago, Illinois $630M AUM 18.94% 1-Year Est. Return

River Street Advisors's OSBC Position: Q3 2026 in Review

River Street Advisors sold out of Old Second Bancorp (OSBC) in Q3 2026, closing a stake of 779,008 shares — an estimated $18.2M sold.

River Street Advisors first reported a position in OSBC in Q4 2024 and held it in 6 quarters. The position peaked at $18.2M in Q2 2026. 154 funds tracked by Wall St. Rank hold OSBC as of Q3 2026.

  • River Street Advisors reported no remaining Old Second Bancorp position as of Q3 2026 after selling out during the quarter.
  • River Street Advisors sold 779,008 Old Second Bancorp shares in Q3 2026, an estimated $18.2M.
  • River Street Advisors first reported a position in Old Second Bancorp in Q4 2024 and held it in 6 quarters.
  • River Street Advisors's Old Second Bancorp position peaked at $18.2M in Q2 2026.
  • 154 funds tracked by Wall St. Rank held Old Second Bancorp as of Q3 2026.

Based on River Street Advisors's 13F filing for Q3 2026, filed 22 Oct 2026.