CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

Pension

Position in OSBC — Old Second Bancorp Inc

CIK 1081019 WEST SACRAMENTO, CA

Position in OSBC

as of Mar 31, 2026 · filed May 18, 2026 Compact

Position Value

$943,407

+$23,553 QoQ

Shares Held

46,796

-0.8% QoQ

Ownership

0.091%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Financial Services · as of Mar 31, 2026

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM holds $1,069,255,169 across 257 Banks - Regional names. OSBC ranks #108 (0.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	PNC	Pnc Financial Services Group, Inc.	618,790	$128,764,011
2	USB	US Bancorp De	2,380,108	$123,789,417
3	TFC	Truist Financial Corp	2,025,032	$93,090,721
4	FITB	Fifth Third Bancorp	1,286,088	$59,751,648
5	MTB	M&T Bank Corp	214,409	$44,322,628
6	HBAN	Huntington Bancshares Inc /Md/	2,540,057	$39,751,892
7	CFG	Citizens Financial Group Inc/Ri	555,907	$33,337,742
8	RF	Regions Financial Corp	1,241,300	$32,422,756

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$943,407	46,796	-0.8%	Shares	Sole	2026-05-18
2025-12-31	$919,854	47,172	+19.7%	Shares	Sole	2026-02-17
2025-09-30	$681,519	39,417	+0.0%	Shares	Sole	2025-11-14
2025-06-30	$699,222	39,415	-1.3%	Shares	Sole	2025-08-14
2025-03-31	$664,318	39,923	0.0%	Shares	Sole	2025-05-15
2024-12-31	$709,830	39,923	-1.1%	Shares	Sole	2025-03-18
2024-09-30	$629,118	40,354	-7.5%	Shares	Sole	2025-04-04
2024-06-30	$645,834	43,608	-2.2%	Shares	Sole	2025-04-08
2024-03-31	$616,945	44,577	-5.0%	Shares	Sole	2024-05-16
2023-12-31	$724,784	46,942	-4.3%	Shares	Sole	2024-02-13
2023-09-30	$667,883	49,073	-6.8%	Shares	Sole	2023-11-14
2023-06-30	$687,556	52,646	+11.8%	Shares	Sole	2023-08-21
2023-03-31	$661,902	47,077	-1.7%	Shares	Sole	2023-05-09
2022-12-31	$768,123	47,888	+1.2%	Shares	Sole	2023-02-14
2022-09-30	$617,591	47,325	-1.6%	Shares	Sole	2022-11-21
2022-06-30	$643,537	48,097	+301.2%	Shares	Sole	2022-08-15
2022-03-31	$173,931	11,987	-18.9%	Shares	Sole	2022-05-16
2021-12-31	$186,080	14,780	-5.0%	Shares	Sole	2022-02-15
2021-09-30	$203,239	15,562	-59.5%	Shares	Sole	2021-11-15
2021-06-30	$475,924	38,381	-10.5%	Shares	Sole	2021-08-16
2021-03-31	$566,365	42,874	-1.2%	Shares	Sole	2021-05-18
2020-12-31	$438,097	43,376	-4.0%	Shares	Sole	2021-02-16
2020-09-30	$338,782	45,171	0.0%	Shares	Sole	2020-11-17
2020-06-30	$351,430	45,171	0.0%	Shares	Sole	2020-08-17
2020-03-31	$312,131	45,171	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.