UNIVERSAL DISPLAY CORP

Ticker: OLED CUSIP: 91347P105 Class: Common Stock

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

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

Q4 2025

Shares 42,765 Value ($000) $4,994 Avg Close $129.25 Range $106.82 - $152.79

Q3 2025

Shares 41,627 Value ($000) $5,979 Avg Close $144.44 Range $132.48 - $161.20

Q2 2025

Shares 41,625 Value ($000) $6,429 Avg Close $138.68 Range $102.66 - $161.57

Q1 2025

Shares 41,801 Value ($000) $5,830 Avg Close $147.55 Range $135.32 - $162.15

Q4 2024

Shares 42,297 Value ($000) $6,184 Avg Close $175.37 Range $143.37 - $211.24

Q3 2024

Shares 42,772 Value ($000) $8,978 Avg Close $199.13 Range $153.86 - $232.88

Q2 2024

Shares 44,061 Value ($000) $9,264 Avg Close $172.49 Range $145.88 - $208.77

Q1 2024

Shares 45,329 Value ($000) $7,636 Avg Close $170.29 Range $152.89 - $185.43

Q4 2023

Shares 47,824 Value ($000) $9,147 Avg Close $161.47 Range $130.51 - $190.61

Q3 2023

Shares 50,164 Value ($000) $7,875 Avg Close $148.04 Range $132.08 - $162.28

Q2 2023

Shares 55,181 Value ($000) $7,953 Avg Close $139.33 Range $122.44 - $153.08

Q1 2023

Shares 58,753 Value ($000) $9,114 Avg Close $130.36 Range $102.50 - $151.53

Q4 2022

Shares 59,527 Value ($000) $6,431 Avg Close $101.46 Range $86.46 - $118.30

Q3 2022

Shares 58,845 Value ($000) $5,552 Avg Close $106.77 Range $91.01 - $123.40

Q2 2022

Shares 61,302 Value ($000) $6,200 Avg Close $123.72 Range $95.17 - $164.79

Q1 2022

Shares 60,099 Value ($000) $10,034 Avg Close $149.02 Range $123.04 - $171.54

Q4 2021

Shares 65,011 Value ($000) $10,729 Avg Close $158.09 Range $134.02 - $180.74

Q3 2021

Shares 77,719 Value ($000) $13,287 Avg Close $198.32 Range $163.63 - $226.92

Q2 2021

Shares 79,604 Value ($000) $17,698 Avg Close $209.57 Range $177.37 - $235.73

Q1 2021

Shares 81,237 Value ($000) $19,234 Avg Close $220.81 Range $172.23 - $251.14

Q4 2020

Shares 81,634 Value ($000) $18,759 Avg Close $204.14 Range $168.68 - $236.05

Q3 2020

Shares 79,931 Value ($000) $14,447 Avg Close $163.00 Range $139.85 - $191.81

Q2 2020

Shares 78,153 Value ($000) $11,693 Avg Close $139.94 Range $112.38 - $160.88

Q1 2020

Shares 72,373 Value ($000) $9,537 Avg Close $163.84 Range $100.21 - $211.62

Q4 2019

Shares 74,400 Value ($000) $15,332 Avg Close $179.87 Range $150.40 - $208.09

Q3 2019

Shares 68,657 Value ($000) $11,528 Avg Close $190.36 Range $155.52 - $219.12

Q2 2019

Shares 67,839 Value ($000) $12,758 Avg Close $158.15 Range $136.49 - $183.14

Q1 2019

Shares 67,322 Value ($000) $10,290 Avg Close $117.58 Range $74.86 - $154.31

Q4 2018

Shares 67,016 Value ($000) $6,271 Avg Close $95.84 Range $77.57 - $123.46

Q3 2018

Shares 65,478 Value ($000) $7,720 Avg Close $104.34 Range $78.45 - $123.96

Q2 2018

Shares 65,482 Value ($000) $5,631 Avg Close $90.46 Range $74.75 - $111.31

Q1 2018

Shares 63,740 Value ($000) $6,438 Avg Close $142.53 Range $93.92 - $198.16

Q4 2017

Shares 65,975 Value ($000) $11,391 Avg Close $151.14 Range $118.83 - $182.72

Q3 2017

Shares 67,011 Value ($000) $8,634 Avg Close $114.67 Range $101.50 - $137.74

Q2 2017

Shares 74,160 Value ($000) $8,102 Avg Close $99.76 Range $76.56 - $123.79

Q1 2017

Shares 81,799 Value ($000) $7,043 Avg Close $68.17 Range $53.18 - $85.23

Q4 2016

Shares 85,599 Value ($000) $4,819 Avg Close $52.08 Range $45.35 - $60.85

Q3 2016

Shares 87,899 Value ($000) $4,879 Avg Close $60.03 Range $47.95 - $70.46

Q2 2016

Shares 87,099 Value ($000) $5,905 Avg Close $58.21 Range $49.14 - $67.68

Q1 2016

Shares 85,423 Value ($000) $4,621 Avg Close $46.29 Range $38.30 - $52.96

Q4 2015

Shares 74,512 Value ($000) $4,056 Avg Close $41.75 Range $30.75 - $54.87

Q3 2015

Shares 73,347 Value ($000) $2,486 Avg Close $39.55 Range $31.36 - $50.38

Q2 2015

Shares 73,447 Value ($000) $3,799 Avg Close $47.77 Range $41.41 - $52.88

Q1 2015

Shares 74,237 Value ($000) $3,471 Avg Close $33.59 Range $24.26 - $45.35

Q4 2014

Shares 75,137 Value ($000) $2,085 Avg Close $26.98 Range $23.47 - $31.93

Q3 2014

Shares 74,817 Value ($000) $2,442 Avg Close $31.26 Range $27.23 - $37.62

Q2 2014

Shares 73,992 Value ($000) $2,375 Avg Close $26.43 Range $21.49 - $31.22

Q1 2014

Shares 73,192 Value ($000) $2,336 Avg Close $31.44 Range $28.52 - $34.01

Q4 2013

Shares 72,792 Value ($000) $2,501 Avg Close $31.56 Range $27.20 - $37.64

Q3 2013

Shares 72,292 Value ($000) $2,316 Avg Close $30.27 Range $25.40 - $36.09

Q2 2013

Shares 70,090 Value ($000) $1,970 Avg Close $28.09 Range $24.34 - $32.23

Q1 2013

Shares 69,092 Value ($000) $2,031 Avg Close $28.59 Range $23.56 - $33.07

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	42,765	$4,994	$129.25	$106.82 - $152.79
Q3 2025	41,627	$5,979	$144.44	$132.48 - $161.20
Q2 2025	41,625	$6,429	$138.68	$102.66 - $161.57
Q1 2025	41,801	$5,830	$147.55	$135.32 - $162.15
Q4 2024	42,297	$6,184	$175.37	$143.37 - $211.24
Q3 2024	42,772	$8,978	$199.13	$153.86 - $232.88
Q2 2024	44,061	$9,264	$172.49	$145.88 - $208.77
Q1 2024	45,329	$7,636	$170.29	$152.89 - $185.43
Q4 2023	47,824	$9,147	$161.47	$130.51 - $190.61
Q3 2023	50,164	$7,875	$148.04	$132.08 - $162.28
Q2 2023	55,181	$7,953	$139.33	$122.44 - $153.08
Q1 2023	58,753	$9,114	$130.36	$102.50 - $151.53
Q4 2022	59,527	$6,431	$101.46	$86.46 - $118.30
Q3 2022	58,845	$5,552	$106.77	$91.01 - $123.40
Q2 2022	61,302	$6,200	$123.72	$95.17 - $164.79
Q1 2022	60,099	$10,034	$149.02	$123.04 - $171.54
Q4 2021	65,011	$10,729	$158.09	$134.02 - $180.74
Q3 2021	77,719	$13,287	$198.32	$163.63 - $226.92
Q2 2021	79,604	$17,698	$209.57	$177.37 - $235.73
Q1 2021	81,237	$19,234	$220.81	$172.23 - $251.14
Q4 2020	81,634	$18,759	$204.14	$168.68 - $236.05
Q3 2020	79,931	$14,447	$163.00	$139.85 - $191.81
Q2 2020	78,153	$11,693	$139.94	$112.38 - $160.88
Q1 2020	72,373	$9,537	$163.84	$100.21 - $211.62
Q4 2019	74,400	$15,332	$179.87	$150.40 - $208.09
Q3 2019	68,657	$11,528	$190.36	$155.52 - $219.12
Q2 2019	67,839	$12,758	$158.15	$136.49 - $183.14
Q1 2019	67,322	$10,290	$117.58	$74.86 - $154.31
Q4 2018	67,016	$6,271	$95.84	$77.57 - $123.46
Q3 2018	65,478	$7,720	$104.34	$78.45 - $123.96
Q2 2018	65,482	$5,631	$90.46	$74.75 - $111.31
Q1 2018	63,740	$6,438	$142.53	$93.92 - $198.16
Q4 2017	65,975	$11,391	$151.14	$118.83 - $182.72
Q3 2017	67,011	$8,634	$114.67	$101.50 - $137.74
Q2 2017	74,160	$8,102	$99.76	$76.56 - $123.79
Q1 2017	81,799	$7,043	$68.17	$53.18 - $85.23
Q4 2016	85,599	$4,819	$52.08	$45.35 - $60.85
Q3 2016	87,899	$4,879	$60.03	$47.95 - $70.46
Q2 2016	87,099	$5,905	$58.21	$49.14 - $67.68
Q1 2016	85,423	$4,621	$46.29	$38.30 - $52.96
Q4 2015	74,512	$4,056	$41.75	$30.75 - $54.87
Q3 2015	73,347	$2,486	$39.55	$31.36 - $50.38
Q2 2015	73,447	$3,799	$47.77	$41.41 - $52.88
Q1 2015	74,237	$3,471	$33.59	$24.26 - $45.35
Q4 2014	75,137	$2,085	$26.98	$23.47 - $31.93
Q3 2014	74,817	$2,442	$31.26	$27.23 - $37.62
Q2 2014	73,992	$2,375	$26.43	$21.49 - $31.22
Q1 2014	73,192	$2,336	$31.44	$28.52 - $34.01
Q4 2013	72,792	$2,501	$31.56	$27.20 - $37.64
Q3 2013	72,292	$2,316	$30.27	$25.40 - $36.09
Q2 2013	70,090	$1,970	$28.09	$24.34 - $32.23
Q1 2013	69,092	$2,031	$28.59	$23.56 - $33.07