ON SEMICONDUCTOR CORP

Ticker: ON CUSIP: 682189105 Class: EQTY

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 490,618 Value ($000) $26,567 Avg Close $51.30 Range $44.56 - $57.52

Q3 2025

Shares 501,376 Value ($000) $24,723 Avg Close $52.63 Range $46.35 - $63.63

Q2 2025

Shares 502,138 Value ($000) $26,317 Avg Close $43.47 Range $31.04 - $55.01

Q1 2025

Shares 594,373 Value ($000) $24,185 Avg Close $50.33 Range $39.36 - $67.00

Q4 2024

Shares 597,855 Value ($000) $37,695 Avg Close $68.91 Range $62.78 - $76.06

Q3 2024

Shares 667,324 Value ($000) $48,454 Avg Close $72.80 Range $66.18 - $80.08

Q2 2024

Shares 669,508 Value ($000) $45,895 Avg Close $70.16 Range $59.34 - $77.22

Q1 2024

Shares 664,501 Value ($000) $48,874 Avg Close $76.54 Range $68.78 - $85.16

Q4 2023

Shares 665,956 Value ($000) $55,627 Avg Close $78.58 Range $61.47 - $95.64

Q3 2023

Shares 660,460 Value ($000) $61,390 Avg Close $97.14 Range $88.63 - $111.35

Q2 2023

Shares 697,151 Value ($000) $65,937 Avg Close $82.71 Range $66.67 - $95.32

Q1 2023

Shares 714,871 Value ($000) $58,848 Avg Close $75.97 Range $59.61 - $87.55

Q4 2022

Shares 723,072 Value ($000) $45,098 Avg Close $66.70 Range $54.93 - $77.28

Q3 2022

Shares 710,378 Value ($000) $44,278 Avg Close $64.40 Range $44.76 - $76.78

Q2 2022

Shares 716,535 Value ($000) $36,049 Avg Close $55.72 Range $49.35 - $67.19

Q1 2022

Shares 710,625 Value ($000) $44,492 Avg Close $60.97 Range $51.02 - $71.26

Q4 2021

Shares 753,454 Value ($000) $51,175 Avg Close $56.65 Range $41.88 - $70.27

Q3 2021

Shares 733,400 Value ($000) $33,568 Avg Close $42.74 Range $34.01 - $49.78

Q2 2021

Shares 746,206 Value ($000) $28,565 Avg Close $39.26 Range $35.12 - $44.59

Q1 2021

Shares 707,295 Value ($000) $29,431 Avg Close $38.38 Range $32.32 - $42.38

Q4 2020

Shares 721,103 Value ($000) $23,602 Avg Close $27.90 Range $21.91 - $32.93

Q3 2020

Shares 707,046 Value ($000) $15,336 Avg Close $21.22 Range $19.02 - $23.12

Q2 2020

Shares 693,147 Value ($000) $13,738 Avg Close $16.29 Range $10.61 - $21.38

Q1 2020

Shares 688,911 Value ($000) $8,570 Avg Close $19.56 Range $8.17 - $25.92

Q4 2019

Shares 639,684 Value ($000) $15,595 Avg Close $21.12 Range $17.04 - $24.70

Q3 2019

Shares 658,245 Value ($000) $12,645 Avg Close $19.23 Range $16.65 - $22.36

Q2 2019

Shares 655,989 Value ($000) $13,258 Avg Close $20.66 Range $17.31 - $23.54

Q1 2019

Shares 666,758 Value ($000) $13,715 Avg Close $20.63 Range $15.57 - $23.35

Q4 2018

Shares 663,152 Value ($000) $10,949 Avg Close $17.29 Range $14.55 - $20.06

Q3 2018

Shares 663,439 Value ($000) $12,227 Avg Close $21.37 Range $18.06 - $24.31

Q2 2018

Shares 663,754 Value ($000) $14,759 Avg Close $24.17 Range $21.45 - $26.38

Q1 2018

Shares 648,883 Value ($000) $15,872 Avg Close $24.12 Range $20.21 - $27.10

Q4 2017

Shares 671,628 Value ($000) $14,064 Avg Close $20.40 Range $18.52 - $22.15

Q3 2017

Shares 681,774 Value ($000) $12,592 Avg Close $16.09 Range $13.65 - $18.49

Q2 2017

Shares 745,391 Value ($000) $10,465 Avg Close $15.03 Range $13.77 - $16.93

Q1 2017

Shares 842,263 Value ($000) $13,046 Avg Close $14.50 Range $12.37 - $16.06

Q4 2016

Shares 879,363 Value ($000) $11,221 Avg Close $11.94 Range $10.74 - $13.32

Q3 2016

Shares 902,263 Value ($000) $11,116 Avg Close $10.35 Range $8.11 - $12.55

Q2 2016

Shares 894,663 Value ($000) $7,891 Avg Close $9.51 Range $8.21 - $10.15

Q1 2016

Shares 913,842 Value ($000) $8,764 Avg Close $8.56 Range $6.97 - $9.92

Q4 2015

Shares 797,359 Value ($000) $7,814 Avg Close $10.52 Range $9.06 - $11.62

Q3 2015

Shares 784,619 Value ($000) $7,375 Avg Close $10.16 Range $8.40 - $11.86

Q2 2015

Shares 783,893 Value ($000) $9,164 Avg Close $12.27 Range $11.08 - $13.50

Q1 2015

Shares 820,233 Value ($000) $9,933 Avg Close $11.46 Range $9.65 - $13.31

Q4 2014

Shares 834,407 Value ($000) $8,453 Avg Close $8.78 Range $6.76 - $10.44

Q3 2014

Shares 826,570 Value ($000) $7,390 Avg Close $9.24 Range $8.32 - $9.94

Q2 2014

Shares 805,095 Value ($000) $7,359 Avg Close $9.11 Range $8.22 - $10.07

Q1 2014

Shares 819,995 Value ($000) $7,708 Avg Close $8.98 Range $7.82 - $9.75

Q4 2013

Shares 816,095 Value ($000) $6,725 Avg Close $7.29 Range $6.80 - $8.35

Q3 2013

Shares 810,495 Value ($000) $5,917 Avg Close $7.67 Range $7.16 - $8.50

Q2 2013

Shares 785,486 Value ($000) $6,347 Avg Close $8.02 Range $7.18 - $8.73

Q1 2013

Shares 789,397 Value ($000) $6,536 Avg Close $8.01 Range $7.20 - $8.71

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	490,618	$26,567	$51.30	$44.56 - $57.52
Q3 2025	501,376	$24,723	$52.63	$46.35 - $63.63
Q2 2025	502,138	$26,317	$43.47	$31.04 - $55.01
Q1 2025	594,373	$24,185	$50.33	$39.36 - $67.00
Q4 2024	597,855	$37,695	$68.91	$62.78 - $76.06
Q3 2024	667,324	$48,454	$72.80	$66.18 - $80.08
Q2 2024	669,508	$45,895	$70.16	$59.34 - $77.22
Q1 2024	664,501	$48,874	$76.54	$68.78 - $85.16
Q4 2023	665,956	$55,627	$78.58	$61.47 - $95.64
Q3 2023	660,460	$61,390	$97.14	$88.63 - $111.35
Q2 2023	697,151	$65,937	$82.71	$66.67 - $95.32
Q1 2023	714,871	$58,848	$75.97	$59.61 - $87.55
Q4 2022	723,072	$45,098	$66.70	$54.93 - $77.28
Q3 2022	710,378	$44,278	$64.40	$44.76 - $76.78
Q2 2022	716,535	$36,049	$55.72	$49.35 - $67.19
Q1 2022	710,625	$44,492	$60.97	$51.02 - $71.26
Q4 2021	753,454	$51,175	$56.65	$41.88 - $70.27
Q3 2021	733,400	$33,568	$42.74	$34.01 - $49.78
Q2 2021	746,206	$28,565	$39.26	$35.12 - $44.59
Q1 2021	707,295	$29,431	$38.38	$32.32 - $42.38
Q4 2020	721,103	$23,602	$27.90	$21.91 - $32.93
Q3 2020	707,046	$15,336	$21.22	$19.02 - $23.12
Q2 2020	693,147	$13,738	$16.29	$10.61 - $21.38
Q1 2020	688,911	$8,570	$19.56	$8.17 - $25.92
Q4 2019	639,684	$15,595	$21.12	$17.04 - $24.70
Q3 2019	658,245	$12,645	$19.23	$16.65 - $22.36
Q2 2019	655,989	$13,258	$20.66	$17.31 - $23.54
Q1 2019	666,758	$13,715	$20.63	$15.57 - $23.35
Q4 2018	663,152	$10,949	$17.29	$14.55 - $20.06
Q3 2018	663,439	$12,227	$21.37	$18.06 - $24.31
Q2 2018	663,754	$14,759	$24.17	$21.45 - $26.38
Q1 2018	648,883	$15,872	$24.12	$20.21 - $27.10
Q4 2017	671,628	$14,064	$20.40	$18.52 - $22.15
Q3 2017	681,774	$12,592	$16.09	$13.65 - $18.49
Q2 2017	745,391	$10,465	$15.03	$13.77 - $16.93
Q1 2017	842,263	$13,046	$14.50	$12.37 - $16.06
Q4 2016	879,363	$11,221	$11.94	$10.74 - $13.32
Q3 2016	902,263	$11,116	$10.35	$8.11 - $12.55
Q2 2016	894,663	$7,891	$9.51	$8.21 - $10.15
Q1 2016	913,842	$8,764	$8.56	$6.97 - $9.92
Q4 2015	797,359	$7,814	$10.52	$9.06 - $11.62
Q3 2015	784,619	$7,375	$10.16	$8.40 - $11.86
Q2 2015	783,893	$9,164	$12.27	$11.08 - $13.50
Q1 2015	820,233	$9,933	$11.46	$9.65 - $13.31
Q4 2014	834,407	$8,453	$8.78	$6.76 - $10.44
Q3 2014	826,570	$7,390	$9.24	$8.32 - $9.94
Q2 2014	805,095	$7,359	$9.11	$8.22 - $10.07
Q1 2014	819,995	$7,708	$8.98	$7.82 - $9.75
Q4 2013	816,095	$6,725	$7.29	$6.80 - $8.35
Q3 2013	810,495	$5,917	$7.67	$7.16 - $8.50
Q2 2013	785,486	$6,347	$8.02	$7.18 - $8.73
Q1 2013	789,397	$6,536	$8.01	$7.20 - $8.71