California State Teachers Retirement System (CalSTRS)
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California State Teachers Retirement System (CalSTRS)’s Old Second Bancorp OSBC Stock Holding History

California State Teachers Retirement System (CalSTRS)’s Portfolio OSBC Stock Details OSBC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$943K Sell
46,796
-376
-0.8% -$7.54K ﹤0.01% 1832
2025
Q4 		$920K Buy
47,172
+7,755
+20% +$145K ﹤0.01% 1833
2025
Q3 		$681K Buy
39,417
+2
+0% +$36 ﹤0.01% 1955
2025
Q2 		$699K Sell
39,415
-508
-1% -$8.28K ﹤0.01% 1907
2025
Q1 		$664K Hold
39,923
– – ﹤0.01% 1913
2024
Q4 		$710K Sell
39,923
-431
-1% -$7.49K ﹤0.01% 1955
2024
Q3 		$629K Sell
40,354
-3,254
-7% -$52.4K ﹤0.01% 2017
2024
Q2 		$646K Sell
43,608
-969
-2% -$13.6K ﹤0.01% 1977
2024
Q1 		$617K Sell
44,577
-2,365
-5% -$33.1K ﹤0.01% 2054
2023
Q4 		$725K Sell
46,942
-2,131
-4% -$30.8K ﹤0.01% 2014
2023
Q3 		$668K Sell
49,073
-3,573
-7% -$52.2K ﹤0.01% 2029
2023
Q2 		$688K Buy
52,646
+5,569
+12% +$70.9K ﹤0.01% 2134
2023
Q1 		$662K Sell
47,077
-811
-2% -$12.9K ﹤0.01% 2149
2022
Q4 		$768K Buy
47,888
+563
+1% +$9K ﹤0.01% 2078
2022
Q3 		$618K Sell
47,325
-772
-2% -$10.8K ﹤0.01% 2230
2022
Q2 		$644K Buy
48,097
+36,110
+301% +$516K ﹤0.01% 2240
2022
Q1 		$174K Sell
11,987
-2,793
-19% -$39.1K ﹤0.01% 2693
2021
Q4 		$186K Sell
14,780
-782
-5% -$10.3K ﹤0.01% 2812
2021
Q3 		$203K Sell
15,562
-22,819
-59% -$274K ﹤0.01% 2737
2021
Q2 		$476K Sell
38,381
-4,493
-10% -$60.1K ﹤0.01% 2666
2021
Q1 		$566K Sell
42,874
-502
-1% -$5.91K ﹤0.01% 2471
2020
Q4 		$438K Sell
43,376
-1,795
-4% -$17K ﹤0.01% 2478
2020
Q3 		$339K Hold
45,171
– – ﹤0.01% 2473
2020
Q2 		$351K Hold
45,171
– – ﹤0.01% 2420
2020
Q1 		$312K Buy
45,171
+516
+1% +$5.68K ﹤0.01% 2328
2019
Q4 		$602K Hold
44,655
– – ﹤0.01% 2249
2019
Q3 		$546K Hold
44,655
– – ﹤0.01% 2259
2019
Q2 		$570K Sell
44,655
-815
-2% -$10.5K ﹤0.01% 2287
2019
Q1 		$572K Hold
45,470
– – ﹤0.01% 2250
2018
Q4 		$591K Buy
45,470
+733
+2% +$10.4K ﹤0.01% 2205
2018
Q3 		$691K Buy
44,737
+294
+0.7% +$4.48K ﹤0.01% 2262
2018
Q2 		$640K Buy
44,443
+382
+0.9% +$5.58K ﹤0.01% 2321
2018
Q1 		$612K Sell
44,061
-1,545
-3% -$22K ﹤0.01% 2269
2017
Q4 		$623K Sell
45,606
-1,070
-2% -$14.2K ﹤0.01% 2280
2017
Q3 		$628K Sell
46,676
-4,600
-9% -$54K ﹤0.01% 2286
2017
Q2 		$592K Sell
51,276
-6,500
-11% -$75.6K ﹤0.01% 2382
2017
Q1 		$650K Sell
57,776
-1,400
-2% -$15.1K ﹤0.01% 2334
2016
Q4 		$654K Sell
59,176
-1,700
-3% -$15.4K ﹤0.01% 2360
2016
Q3 		$506K Buy
60,876
+600
+1% +$4.59K ﹤0.01% 2488
2016
Q2 		$412K Sell
60,276
-2,178
-3% -$15.5K ﹤0.01% 2589
2016
Q1 		$448K Buy
62,454
+7,836
+14% +$54K ﹤0.01% 2488
2015
Q4 		$428K Buy
54,618
+993
+2% +$7.16K ﹤0.01% 2526
2015
Q3 		$334K Sell
53,625
-200
-0.4% -$1.26K ﹤0.01% 2680
2015
Q2 		$355K Buy
+53,825
New +$326K ﹤0.01% 2775

Other funds holding OSBC

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
DAM
Davis Asset Management Sausalito, California $3.46B AUM 9.77% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
FCM
FJ Capital Management Mclean, Virginia $888M AUM 18.97% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

California State Teachers Retirement System (CalSTRS)'s OSBC Position: Q1 2026 in Review

California State Teachers Retirement System (CalSTRS) reduced its Old Second Bancorp (OSBC) stake by 0.8% in Q1 2026, selling an estimated $7.54K and leaving 46,796 shares worth $943K. The position accounts for ﹤0.01% of the portfolio, ranked #1832.

California State Teachers Retirement System (CalSTRS) first reported a position in OSBC in Q2 2015 and has held it in 44 quarters since. 188 funds tracked by Wall St. Rank hold OSBC as of Q1 2026.

  • California State Teachers Retirement System (CalSTRS) held 46,796 shares of Old Second Bancorp worth $943K as of Q1 2026.
  • California State Teachers Retirement System (CalSTRS) sold 376 Old Second Bancorp shares in Q1 2026, an estimated $7.54K.
  • Old Second Bancorp made up ﹤0.01% of California State Teachers Retirement System (CalSTRS)'s portfolio in Q1 2026, its #1832 holding.
  • California State Teachers Retirement System (CalSTRS) first reported a position in Old Second Bancorp in Q2 2015 and has held it in 44 quarters since.
  • 188 funds tracked by Wall St. Rank held Old Second Bancorp as of Q1 2026.

Based on California State Teachers Retirement System (CalSTRS)'s 13F filing for Q1 2026, filed 18 May 2026.