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OSBC — OLD SECOND BANCORP INC DEL

Reported value held$377.50M
Funds holding (latest)38
SectorFinancials
Funds holding (Q2 2026)28
Institutional value$310.03M · 13.34M sh
New / Add / Cut / Exit2 / 17 / 8 / 3
Top-5 / Top-10 concentration65.5% / 82.7%
Institutional holdings change Accumulating +6.8% (+847.81K sh)
Institutional value change Up +23.5%

As of Q2 2026, 28 SEC-registered investment managers reported holding OSBC (OLD SECOND BANCORP INC DEL) in their latest 13F filings, with a combined reported value of $310.03M across 13.34M shares. That is +6.8% by share count (+847.81K shares) versus the previous quarter, while reported value moved +23.5%. Ownership is concentrated: the five largest holders account for 65.5% of reported value and the top ten for 82.7%.

Compared with the prior quarter, 2 opened new positions, 17 added to existing stakes, 8 trimmed, 3 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.

OSBC is classified in the Financials sector.

All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.

Q2 2026 — 28 funds

FundSharesValuePortfolio WeightChange
BlackRock Inc history 4.30M $100.25M 0.00% Add
Goldman Sachs Group history 1.62M $37.89M 0.01% Reduce
Geode Capital Management history 1.35M $31.47M 0.00% Add
Manulife Financial history 872.65K $20.35M 0.02% Reduce
Northern Trust Corp history 555.41K $12.95M 0.00% Reduce
JPMorgan Chase & Co history 555.60K $12.90M 0.00% New
Wellington Management Group history 544.35K $12.69M 0.00% Reduce
Charles Schwab Investment Management history 431.30K $10.06M 0.00% Hold
AQR Capital Management history 386.23K $9.01M 0.00% Reduce
Bank of America Corp history 372.65K $8.69M 0.00% Add
BNY Mellon history 342.01K $7.98M 0.00% Add
Morgan Stanley history 318.32K $7.42M 0.00% Add
Citadel Advisors history 304.02K $7.09M 0.01% Add
Franklin Resources history 259.32K $6.05M 0.00% Add
Arrowstreet Capital history 210.75K $4.91M 0.00% Add
Two Sigma Investments history 200.82K $4.68M 0.00% Add
UBS Group AG history 147.22K $3.43M 0.00% Reduce
D. E. Shaw & Co history 114.33K $2.67M 0.00% New
Principal Global Investors history 80.53K $1.88M 0.00% Add
Invesco Ltd history 77.24K $1.80M 0.00% Reduce
Citigroup Inc history 55.10K $1.28M 0.00% Add
Deutsche Bank AG history 51.03K $1.19M 0.00% Add
Wells Fargo & Co history 42.86K $999.43K 0.00% Add
Legal & General Investment Management America history 40.58K $946.28K 0.00% Add
Fidelity Management & Research (FMR) history 39.92K $930.98K 0.00% Add
Renaissance Technologies history 21.22K $494.87K 0.00% Reduce
PNC Financial Services history 297 $6.93K 0.00% Add
T. Rowe Price Associates history 46.96K $1.10K 0.00% Add

Q1 2026 — 29 funds

FundSharesValuePortfolio WeightChange
BlackRock Inc history 4.13M $83.19M 0.00% Reduce
Goldman Sachs Group history 1.69M $34.10M 0.00% Add
Geode Capital Management history 1.28M $25.85M 0.00% Reduce
Manulife Financial history 878.67K $17.71M 0.01% Reduce
Wellington Management Group history 857.78K $17.29M 0.00% Reduce
Northern Trust Corp history 764.34K $15.41M 0.00% Reduce
Charles Schwab Investment Management history 430.91K $8.69M 0.00% Reduce
AQR Capital Management history 391.96K $7.90M 0.00% Reduce
BNY Mellon history 337.26K $6.80M 0.00% Reduce
Bank of America Corp history 331.33K $6.68M 0.00% Reduce
Morgan Stanley history 278.39K $5.61M 0.00% Reduce
UBS Group AG history 259.27K $5.23M 0.00% Add
Arrowstreet Capital history 141.03K $2.84M 0.00% Reduce
Renaissance Technologies history 90.22K $1.82M 0.00% Add
Franklin Resources history 88.17K $1.78M 0.00% New
Invesco Ltd history 81.61K $1.65M 0.00% Add
Principal Global Investors history 75.09K $1.51M 0.00% Add
Two Sigma Investments history 67.36K $1.36M 0.00% Add
Citadel Advisors history 60.06K $1.21M 0.00% Reduce
Deutsche Bank AG history 46.48K $936.98K 0.00% Add
Legal & General Investment Management America history 40.11K $808.56K 0.00% Reduce
Citigroup Inc history 37.23K $750.58K 0.00% Reduce
Millennium Management history 31.48K $634.54K 0.00% Reduce
Janus Henderson Group history 26.23K $528.97K 0.00% Add
Wells Fargo & Co history 19.82K $399.61K 0.00% Reduce
Amundi US history 13.71K $276.31K 0.00% New
Fidelity Management & Research (FMR) history 5.84K $117.78K 0.00% Add
PNC Financial Services history 283 $5.71K 0.00% Reduce
T. Rowe Price Associates history 41.46K $837 0.00% Add

Q4 2025 — 30 funds

FundSharesValuePortfolio WeightChange
BlackRock Inc history 4.16M $81.04M 0.00% Add
Vanguard Group history 3.28M $63.93M 0.00% Hold
Geode Capital Management history 1.37M $26.63M 0.00% Hold
Goldman Sachs Group history 1.26M $24.63M 0.00% Reduce
Wellington Management Group history 969.71K $18.91M 0.00% Add
Manulife Financial history 891.88K $17.39M 0.01% Reduce
Northern Trust Corp history 881.58K $17.19M 0.00% Reduce
JPMorgan Chase & Co history 858.81K $16.75M 0.00% Add
AQR Capital Management history 447.12K $8.72M 0.01% Reduce
Charles Schwab Investment Management history 437.51K $8.53M 0.00% Hold
BNY Mellon history 344.29K $6.71M 0.00% Add
Bank of America Corp history 342.58K $6.68M 0.00% Reduce
Millennium Management history 313.56K $6.11M 0.00% New
Morgan Stanley history 288.12K $5.62M 0.00% Reduce
Arrowstreet Capital history 216.51K $4.22M 0.00% Hold
UBS Group AG history 177.10K $3.45M 0.00% Add
Renaissance Technologies history 86.33K $1.68M 0.00% Add
Invesco Ltd history 80.55K $1.57M 0.00% Add
Citadel Advisors history 67.31K $1.31M 0.00% Reduce
Wells Fargo & Co history 56.54K $1.10M 0.00% Add
Legal & General Investment Management America history 50.62K $987.17K 0.00% Add
Principal Global Investors history 49.78K $970.75K 0.00% Add
Citigroup Inc history 45.42K $885.77K 0.00% Add
Deutsche Bank AG history 41.19K $803.15K 0.00% Add
Two Sigma Investments history 32.60K $635.68K 0.00% Reduce
Janus Henderson Group history 15.63K $304.88K 0.00% Hold
CPP Investments history 7.00K $136.50K 0.00% New
Fidelity Management & Research (FMR) history 4.44K $86.54K 0.00% Reduce
PNC Financial Services history 1.20K $23.48K 0.00% Add
T. Rowe Price Associates history 34.26K $669 0.00% Add

Q3 2025 — 32 funds

FundSharesValuePortfolio WeightChange
BlackRock Inc history 3.82M $65.99M 0.00% Add
Vanguard Group history 3.27M $56.52M 0.00% Add
Goldman Sachs Group history 1.56M $26.94M 0.00% Add
Geode Capital Management history 1.36M $23.57M 0.00% Add
Northern Trust Corp history 997.90K $17.25M 0.00% Add
Manulife Financial history 916.67K $15.84M 0.01% Reduce
JPMorgan Chase & Co history 780.00K $13.48M 0.00% Reduce
AQR Capital Management history 518.10K $8.96M 0.01% Reduce
Charles Schwab Investment Management history 437.59K $7.56M 0.00% Add
Bank of America Corp history 354.40K $6.13M 0.00% Add
BNY Mellon history 340.88K $5.89M 0.00% Add
Morgan Stanley history 309.90K $5.36M 0.00% Reduce
Arrowstreet Capital history 216.90K $3.75M 0.00% Add
Two Sigma Investments history 187.79K $3.25M 0.01% Add
Wellington Management Group history 156.11K $2.70M 0.00% Hold
Citadel Advisors history 77.59K $1.34M 0.00% Add
Invesco Ltd history 77.00K $1.33M 0.00% Add
Renaissance Technologies history 49.12K $849.13K 0.00% Reduce
Point72 Asset Management history 47.67K $824.01K 0.00% Add
Legal & General Investment Management America history 47.57K $822.25K 0.00% Add
UBS Group AG history 44.81K $774.58K 0.00% Add
Citigroup Inc history 38.89K $672.27K 0.00% Reduce
Wells Fargo & Co history 38.67K $668.40K 0.00% Add
Deutsche Bank AG history 37.83K $654.15K 0.00% Add
Principal Global Investors history 34.96K $604.32K 0.00% Reduce
Prudential Financial history 29.91K $516.85K 0.00% Add
Franklin Resources history 28.12K $485.99K 0.00% Hold
Janus Henderson Group history 15.63K $270.25K 0.00% Hold
Fidelity Management & Research (FMR) history 15.61K $269.80K 0.00% Reduce
D. E. Shaw & Co history 12.17K $210.29K 0.00% Reduce
PNC Financial Services history 220 $3.80K 0.00% Hold
T. Rowe Price Associates history 32.24K $558 0.00% Add

Q2 2025 — 45 funds

FundSharesValuePortfolio WeightChange
BlackRock Inc history 3.50M $62.12M 0.00% Reduce
BlackRock Inc history 3.50M $62.12M 0.00% Reduce
Vanguard Group history 2.72M $48.20M 0.00% Hold
Goldman Sachs Group history 1.40M $24.75M 0.00% Reduce
Goldman Sachs Group history 1.40M $24.75M 0.00% Reduce
Geode Capital Management history 1.15M $20.43M 0.00% Add
Manulife Financial history 934.47K $16.58M 0.01% Reduce
JPMorgan Chase & Co history 849.87K $15.08M 0.00% Reduce
JPMorgan Chase & Co history 849.87K $15.08M 0.00% Reduce
AQR Capital Management history 520.93K $9.24M 0.01% Reduce
Northern Trust Corp history 414.41K $7.35M 0.00% Reduce
Charles Schwab Investment Management history 366.55K $6.50M 0.00% Add
Morgan Stanley history 345.01K $6.12M 0.00% Reduce
Morgan Stanley history 345.01K $6.12M 0.00% Reduce
BNY Mellon history 329.44K $5.84M 0.00% Reduce
Arrowstreet Capital history 213.24K $3.78M 0.00% Add
Bank of America Corp history 198.45K $3.52M 0.00% Reduce
Wellington Management Group history 156.11K $2.77M 0.00% Reduce
Two Sigma Investments history 121.45K $2.15M 0.00% Add
Two Sigma Investments history 121.45K $2.15M 0.00% Add
Renaissance Technologies history 82.72K $1.47M 0.00% Reduce
Renaissance Technologies history 82.72K $1.47M 0.00% Reduce
Invesco Ltd history 70.34K $1.25M 0.00% Reduce
Millennium Management history 57.43K $1.02M 0.00% Reduce
Citadel Advisors history 51.76K $918.13K 0.00% Add
Citadel Advisors history 51.76K $918.13K 0.00% Add
Legal & General Investment Management America history 47.08K $835.25K 0.00% Reduce
Citigroup Inc history 44.86K $795.80K 0.00% Reduce
D. E. Shaw & Co history 43.88K $778.36K 0.00% Add
Principal Global Investors history 39.57K $701.97K 0.00% Add
UBS Group AG history 37.27K $661.19K 0.00% Reduce
Fidelity Management & Research (FMR) history 31.99K $567.43K 0.00% Add
Fidelity Management & Research (FMR) history 31.99K $567.43K 0.00% Add
Deutsche Bank AG history 31.09K $551.59K 0.00% Reduce
Deutsche Bank AG history 31.09K $551.59K 0.00% Reduce
Prudential Financial history 29.33K $520.31K 0.00% Add
Franklin Resources history 28.12K $498.78K 0.00% Hold
Wells Fargo & Co history 27.94K $495.70K 0.00% Reduce
Balyasny Asset Management history 24.46K $434.01K 0.00% Reduce
Point72 Asset Management history 19.34K $343.04K 0.00% Add
Point72 Asset Management history 19.34K $343.04K 0.00% Add
Janus Henderson Group history 15.63K $277.44K 0.00% Reduce
PNC Financial Services history 220 $3.90K 0.00% Add
T. Rowe Price Associates history 27.34K $486 0.00% Add
Lazard Asset Management history 7.08K $125 0.00% New

Q1 2025 — 45 funds

FundSharesValuePortfolio WeightChange
BlackRock Inc history 3.58M $59.58M 0.00% Add
BlackRock Inc history 3.58M $59.58M 0.00% Add
Vanguard Group history 2.71M $45.12M 0.00% Add
Goldman Sachs Group history 1.48M $24.60M 0.00% Add
Goldman Sachs Group history 1.48M $24.60M 0.00% Add
Geode Capital Management history 1.13M $18.75M 0.00% Add
Manulife Financial history 954.27K $15.88M 0.01% Add
JPMorgan Chase & Co history 951.89K $15.84M 0.00% Reduce
JPMorgan Chase & Co history 951.89K $15.84M 0.00% Reduce
AQR Capital Management history 540.95K $9.00M 0.01% Add
Northern Trust Corp history 418.19K $6.96M 0.00% Reduce
Morgan Stanley history 362.60K $6.03M 0.00% Reduce
Morgan Stanley history 362.60K $6.03M 0.00% Reduce
Charles Schwab Investment Management history 357.04K $5.94M 0.00% Reduce
BNY Mellon history 333.06K $5.54M 0.00% Reduce
Millennium Management history 282.44K $4.70M 0.00% Reduce
Bank of America Corp history 230.56K $3.84M 0.00% Reduce
Arrowstreet Capital history 194.79K $3.24M 0.00% Add
Wellington Management Group history 182.84K $3.04M 0.00% Reduce
Renaissance Technologies history 151.93K $2.53M 0.00% Add
Renaissance Technologies history 151.93K $2.53M 0.00% Add
Two Sigma Investments history 117.46K $1.95M 0.00% Reduce
Two Sigma Investments history 117.46K $1.95M 0.00% Reduce
Wells Fargo & Co history 114.97K $1.91M 0.00% Add
Invesco Ltd history 75.03K $1.25M 0.00% Reduce
Balyasny Asset Management history 64.50K $1.07M 0.00% Add
Citigroup Inc history 59.72K $993.69K 0.00% Reduce
UBS Group AG history 49.74K $827.62K 0.00% Reduce
Legal & General Investment Management America history 49.39K $821.87K 0.00% Reduce
Deutsche Bank AG history 37.24K $619.69K 0.00% Reduce
Deutsche Bank AG history 37.24K $619.69K 0.00% Reduce
Principal Global Investors history 36.43K $606.26K 0.00% Add
Franklin Resources history 28.12K $467.85K 0.00% New
Citadel Advisors history 25.82K $429.60K 0.00% Reduce
Citadel Advisors history 25.82K $429.60K 0.00% Reduce
Janus Henderson Group history 24.81K $414.24K 0.00% Reduce
Fidelity Management & Research (FMR) history 23.81K $396.13K 0.00% Add
Fidelity Management & Research (FMR) history 23.81K $396.13K 0.00% Add
D. E. Shaw & Co history 20.25K $336.91K 0.00% New
Prudential Financial history 13.31K $221.43K 0.00% Reduce
Point72 Asset Management history 12.72K $211.70K 0.00% Reduce
Point72 Asset Management history 12.72K $211.70K 0.00% Reduce
Marshall Wace history 11.60K $193.02K 0.00% New
PNC Financial Services history 203 $3.38K 0.00% Reduce
T. Rowe Price Associates history 24.45K $407 0.00% Add

View all 38 fund holders →

New Positions (Q2 2026)

Fully Exited (vs previous quarter)

Fund Position History — shares by quarter (top 20 funds)

FundQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023Q2 2023Q1 2023Q4 2022Q3 2022Q2 2022Q1 2022Q4 2021Q3 2021
BlackRock Inc 4.30M 4.13M 4.16M 3.82M 3.50M 3.58M 3.54M 3.68M — — — — — — — — — — — —
Goldman Sachs Group 1.62M 1.69M 1.26M 1.56M 1.40M 1.48M 848.07K 838.22K 501.98K 298.65K 284.29K 315.73K 454.05K 250.56K 122.18K 118.10K 106.46K 88.20K 67.52K 65.61K
Geode Capital Management 1.35M 1.28M 1.37M 1.36M 1.15M 1.13M 1.03M 1.03M 1.01M 955.59K 936.22K 894.19K 856.03K 810.32K 776.35K 753.66K 733.86K 492.04K 442.80K 445.31K
Manulife Financial 872.65K 878.67K 891.88K 916.67K 934.47K 954.27K 946.94K 963.16K 991.13K 1.05M 1.06M 970.38K 1.00M 1.01M 1.03M 1.04M 1.07M 1.08M 1.07M 1.06M
Northern Trust Corp 555.41K 764.34K 881.58K 997.90K 414.41K 418.19K 447.14K 462.91K 613.75K 601.29K 637.66K 643.87K 640.07K 629.56K 649.05K 686.40K 718.77K 588.20K 451.47K 327.60K
JPMorgan Chase & Co 555.60K — 858.81K 780.00K 849.87K 951.89K 1.07M 1.10M 948.45K 1.02M 969.76K 915.75K 996.55K 1.01M 1.06M 830.77K 403.23K 133.69K 72.73K 64.17K
Wellington Management Group 544.35K 857.78K 969.71K 156.11K 156.11K 182.84K 336.64K 322.54K 394.20K 387.80K 387.80K 257.60K 220.70K — — — — — — 258.30K
Charles Schwab Investment Management 431.30K 430.91K 437.51K 437.59K 366.55K 357.04K 366.48K 358.35K 332.78K 383.95K 379.63K 368.80K 165.82K 161.50K 110.38K 109.14K 113.06K 80.33K 72.10K 69.59K
AQR Capital Management 386.23K 391.96K 447.12K 518.10K 520.93K 540.95K 404.98K 319.45K 308.00K 256.34K 47.95K 33.70K — — — 21.24K — 11.02K 27.01K 30.16K
Bank of America Corp 372.65K 331.33K 342.58K 354.40K 198.45K 230.56K 236.06K 163.66K 138.73K 103.77K 95.24K 48.68K 55.31K 48.46K 46.49K 34.44K 30.71K 26.27K 50.11K 42.98K
BNY Mellon 342.01K 337.26K 344.29K 340.88K 329.44K 333.06K 358.69K 361.84K 230.08K 216.15K 228.30K 173.60K 173.97K 168.53K 172.02K 199.32K 184.09K 152.27K 163.02K 139.45K
Morgan Stanley 318.32K 278.39K 288.12K 309.90K 345.01K 362.60K 395.44K 364.75K 244.69K 265.84K 362.58K 199.20K 200.85K 315.76K 263.03K 221.52K 221.86K 87.06K 78.18K 78.80K
Citadel Advisors 304.02K 60.06K 67.31K 77.59K 51.76K 25.82K 210.83K 19.04K 60.13K 44.63K 44.71K 26.87K — 48.28K 133.30K — 90.16K 78.54K 19.78K 18.33K
Franklin Resources 259.32K 88.17K — 28.12K 28.12K 28.12K — — — — 21.21K 21.21K 21.21K — — — — — — —
Arrowstreet Capital 210.75K 141.03K 216.51K 216.90K 213.24K 194.79K 168.93K 128.39K 40.91K — — 53.17K — 34.52K — — — — 124.04K 104.38K
Two Sigma Investments 200.82K 67.36K 32.60K 187.79K 121.45K 117.46K 148.34K 167.19K 120.55K 107.38K 94.56K 133.66K 98.06K 145.63K 168.40K 156.11K 240.39K 185.66K 150.33K 194.55K
UBS Group AG 147.22K 259.27K 177.10K 44.81K 37.27K 49.74K 51.40K 37.43K 28.09K 51.02K 63.07K 32.05K 26.56K 22.57K 18.88K 16.56K 11.07K 4.60K 12.05K 45
D. E. Shaw & Co 114.33K — — 12.17K 43.88K 20.25K — 35.12K 97.91K 14.77K — — — — — — — 24.07K 14.16K 10.78K
Principal Global Investors 80.53K 75.09K 49.78K 34.96K 39.57K 36.43K 35.33K 32.24K 28.93K 26.47K — — — — — — — — — —
Invesco Ltd 77.24K 81.61K 80.55K 77.00K 70.34K 75.03K 77.90K 76.55K 110.11K 107.28K 112.74K 111.94K 101.82K 111.38K 85.09K 82.89K 84.33K 74.90K 90.46K 100.90K

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