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ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

Position in OSBC — Old Second Bancorp Inc

CIK 1164508 BOSTON, MA

Position in OSBC

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$4,914,573
+$2,071,489 QoQ
Shares Held
210,745
+49.4% QoQ
Ownership
0.414%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#36
of 185 holders
Holding Since
Mar 2020
19 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in OSBC Over Time

Shares Held

Position Value (USD)

Position in Banks - Regional

Financial Services · as of Jun 30, 2026

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $4,567,595,412 across 208 Banks - Regional names. OSBC ranks #104 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in OSBC

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19 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $4,914,573 210,745
2026-03-31 $2,843,084 141,026
2025-12-31 $4,221,964 216,511
2025-09-30 $3,750,114 216,895
2025-06-30 $3,782,806 213,236
2025-03-31 $3,241,272 194,788
2024-12-31 $3,003,646 168,934
2024-09-30 $2,001,631 128,392
2024-06-30 $605,921 40,913
2023-09-30 $723,616 53,168
2023-03-31 $485,337 34,519
2021-12-31 $1,561,625 124,037
2021-09-30 $1,363,137 104,375
2021-06-30 $1,052,735 84,898
2021-03-31 $209,814 15,883
2020-12-31 $1,697,507 168,070
2020-09-30 $1,260,525 168,070
2020-06-30 $1,134,821 145,864
2020-03-31 $1,070,110 154,864