Citadel Advisors’s Old Second Bancorp OSBC Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$1.21M Sell
60,065
-7,248
-11% -$145K ﹤0.01% 7232
2025
Q4
$1.31M Sell
67,313
-10,275
-13% -$192K ﹤0.01% 6806
2025
Q3
$1.34M Buy
77,588
+25,833
+50% +$465K ﹤0.01% 6900
2025
Q2
$918K Buy
51,755
+28,938
+127% +$472K ﹤0.01% 7292
2025
Q1
$380K Sell
22,817
-185,912
-89% -$3.33M ﹤0.01% 9069
2024
Q4
$3.71M Buy
208,729
+194,487
+1,366% +$3.38M ﹤0.01% 4467
2024
Q3
$222K Sell
14,242
-43,191
-75% -$695K ﹤0.01% 9931
2024
Q2
$851K Buy
57,433
+16,602
+41% +$234K ﹤0.01% 6924
2024
Q1
$565K Sell
40,831
-380
-0.9% -$5.31K ﹤0.01% 8112
2023
Q4
$636K Buy
41,211
+20,141
+96% +$291K ﹤0.01% 7597
2023
Q3
$287K Buy
+21,070
New +$308K ﹤0.01% 9259
2023
Q2
Sell
-48,279
Closed -$679K 14980
2023
Q1
$679K Sell
48,279
-85,021
-64% -$1.36M ﹤0.01% 7647
2022
Q4
$2.14M Buy
+133,300
New +$2.13M ﹤0.01% 5347
2022
Q3
Sell
-90,160
Closed -$1.21M 13322
2022
Q2
$1.21M Buy
90,160
+11,623
+15% +$166K ﹤0.01% 6590
2022
Q1
$1.14M Buy
78,537
+58,755
+297% +$823K ﹤0.01% 7411
2021
Q4
$249K Buy
19,782
+1,452
+8% +$19.1K ﹤0.01% 11372
2021
Q3
$240K Sell
18,330
-14,149
-44% -$170K ﹤0.01% 11571
2021
Q2
$403K Sell
32,479
-24,312
-43% -$325K ﹤0.01% 10541
2021
Q1
$750K Sell
56,791
-6,232
-10% -$73.4K ﹤0.01% 8792
2020
Q4
$637K Sell
63,023
-7,993
-11% -$75.9K ﹤0.01% 7694
2020
Q3
$532K Sell
71,016
-30,951
-30% -$248K ﹤0.01% 7184
2020
Q2
$794K Buy
101,967
+37,294
+58% +$276K ﹤0.01% 6255
2020
Q1
$447K Buy
64,673
+12,997
+25% +$143K ﹤0.01% 6645
2019
Q4
$696K Sell
51,676
-20,118
-28% -$251K ﹤0.01% 6256
2019
Q3
$878K Buy
71,794
+25,395
+55% +$315K ﹤0.01% 5812
2019
Q2
$593K Sell
46,399
-2,125
-4% -$27.3K ﹤0.01% 6567
2019
Q1
$611K Buy
+48,524
New +$672K ﹤0.01% 6447
2018
Q4
Sell
-28,670
Closed -$443K 9588
2018
Q3
$443K Buy
+28,670
New +$437K ﹤0.01% 6891
2018
Q2
Sell
-11,524
Closed -$160K 9145
2018
Q1
$160K Sell
11,524
-4,373
-28% -$62.2K ﹤0.01% 7500
2017
Q4
$217K Buy
+15,897
New +$211K ﹤0.01% 6995
2014
Q2
Sell
-13,525
Closed -$62K 8209
2014
Q1
$62K Buy
+13,525
New +$64.1K ﹤0.01% 6589

Other funds holding OSBC

Citadel Advisors's OSBC Position: Q1 2026 in Review

Citadel Advisors reduced its Old Second Bancorp (OSBC) stake by 11% in Q1 2026, selling an estimated $145K and leaving 60,065 shares worth $1.21M. The position accounts for ﹤0.01% of the portfolio, ranked #7232.

Citadel Advisors first reported a position in OSBC in Q1 2014 and has held it in 31 quarters since. The position peaked at $3.71M in Q4 2024. 188 funds tracked by Wall St. Rank hold OSBC as of Q1 2026.

  • Citadel Advisors held 60,065 shares of Old Second Bancorp worth $1.21M as of Q1 2026.
  • Citadel Advisors sold 7,248 Old Second Bancorp shares in Q1 2026, an estimated $145K.
  • Old Second Bancorp made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #7232 holding.
  • Citadel Advisors first reported a position in Old Second Bancorp in Q1 2014 and has held it in 31 quarters since.
  • Citadel Advisors's Old Second Bancorp position peaked at $3.71M in Q4 2024.
  • 188 funds tracked by Wall St. Rank held Old Second Bancorp as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.