STATE OF WISCONSIN INVESTMENT BOARD

Position in OSBC — Old Second Bancorp Inc

CIK 854157 MADISON, WI

Position in OSBC

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$711,912

+$351,351 QoQ

Shares Held

30,528

+70.7% QoQ

Ownership

0.060%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#92

of 185 holders

Holding Since

Mar 2020

12 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Financial Services · as of Jun 30, 2026

STATE OF WISCONSIN INVESTMENT BOARD holds $728,331,802 across 157 Banks - Regional names. OSBC ranks #87 (0.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	PNC	Pnc Financial Services Group, Inc.	214,828	$52,894,950
2	USB	US Bancorp \De\	871,514	$52,639,445
3	TFC	Truist Financial Corp	705,959	$35,170,877
4	FITB	Fifth Third Bancorp	482,788	$27,214,759
5	EWBC	East West Bancorp Inc	200,871	$25,930,437
6	DB	Deutsche Bank Aktiengesellschaft	675,985	$22,821,253
7	HBAN	Huntington Bancshares Inc /Md/	1,259,075	$22,323,399
8	CFG	Citizens Financial Group Inc/Ri	312,407	$21,890,358

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$711,912	30,528	+70.7%	Shares	Sole	2026-08-14
2026-03-31	$360,561	17,885	+10.8%	Shares	Sole	2026-05-15
2025-12-31	$314,749	16,141	-90.9%	Shares	Sole	2026-02-17
2022-03-31	$2,579,108	177,747	0.0%	Shares	Sole	2022-05-13
2021-12-31	$2,237,834	177,747	0.0%	Shares	Sole	2022-02-11
2021-09-30	$2,321,375	177,747	0.0%	Shares	Sole	2021-11-12
2021-06-30	$2,204,062	177,747	0.0%	Shares	Sole	2021-08-12
2021-03-31	$2,348,037	177,747	+3.2%	Shares	Sole	2021-05-17
2020-12-31	$1,739,694	172,247	-11.8%	Shares	Sole	2021-02-03
2020-09-30	$1,465,102	195,347	-3.5%	Shares	Sole	2020-11-16
2020-06-30	$1,575,037	202,447	+17.8%	Shares	Sole	2020-08-12
2020-03-31	$1,187,138	171,800	—	Shares	Sole	2020-05-06
No filing history on record for this holder in this stock.