ILLUMINA INC

Ticker: ILMN CUSIP: 452327109 Class: COM

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP's Holding History (CIK: 0001164508)

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

Q4 2025

Shares 496,793 Value ($000) $65,159 Avg Close $117.40 Range $88.00 - $138.80

Q3 2025

Shares 227,640 Value ($000) $21,619 Avg Close $99.18 Range $90.62 - $111.00

Q2 2025

Shares 334,791 Value ($000) $31,942 Avg Close $81.16 Range $68.70 - $96.83

Q1 2025

Shares 184,990 Value ($000) $14,677 Avg Close $108.24 Range $77.54 - $153.06

Q4 2024

Shares 67,519 Value ($000) $9,023 Avg Close $142.41 Range $125.06 - $156.66

Q2 2022

Shares 4,088 Value ($000) $754 Avg Close $255.36 Range $175.10 - $361.05

Q1 2022

Shares 38,032 Value ($000) $13,288 Avg Close $337.77 Range $294.54 - $416.34

Q4 2021

Shares 343,480 Value ($000) $130,674 Avg Close $378.89 Range $331.74 - $413.42

Q3 2021

Shares 580,570 Value ($000) $235,485 Avg Close $459.88 Range $394.08 - $511.67

Q2 2021

Shares 348,830 Value ($000) $165,070 Avg Close $402.76 Range $358.04 - $473.74

Q1 2021

Shares 33,500 Value ($000) $12,866 Avg Close $407.75 Range $346.30 - $540.63

Q4 2020

Shares 31,054 Value ($000) $11,490 Avg Close $318.77 Range $280.17 - $368.03

Q3 2020

Shares 280,523 Value ($000) $86,704 Avg Close $344.57 Range $253.33 - $393.19

Q2 2020

Shares 109,923 Value ($000) $40,710 Avg Close $321.78 Range $244.30 - $367.51

Q1 2020

Shares 165,696 Value ($000) $45,255 Avg Close $279.63 Range $191.42 - $330.38

Q2 2019

Shares 188,081 Value ($000) $69,242 Avg Close $315.75 Range $292.17 - $358.95

Q1 2019

Shares 410,806 Value ($000) $127,633 Avg Close $291.63 Range $261.30 - $313.54

Q4 2018

Shares 353,325 Value ($000) $105,973 Avg Close $309.79 Range $263.62 - $361.78

Q3 2018

Shares 100,840 Value ($000) $37,015 Avg Close $320.46 Range $267.18 - $362.46

Q2 2018

Shares 82,832 Value ($000) $23,134 Avg Close $254.40 Range $219.67 - $285.17

Q1 2018

Shares 152,830 Value ($000) $36,132 Avg Close $229.19 Range $201.86 - $249.65

Q4 2017

Shares 257,000 Value ($000) $56,152 Avg Close $205.77 Range $192.81 - $224.44

Q3 2017

Shares 162,400 Value ($000) $32,350 Avg Close $186.17 Range $163.40 - $208.50

Q2 2017

Shares 259,900 Value ($000) $45,098 Avg Close $173.03 Range $162.61 - $184.32

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	496,793	$65,159	$117.40	$88.00 - $138.80
Q3 2025	227,640	$21,619	$99.18	$90.62 - $111.00
Q2 2025	334,791	$31,942	$81.16	$68.70 - $96.83
Q1 2025	184,990	$14,677	$108.24	$77.54 - $153.06
Q4 2024	67,519	$9,023	$142.41	$125.06 - $156.66
Q2 2022	4,088	$754	$255.36	$175.10 - $361.05
Q1 2022	38,032	$13,288	$337.77	$294.54 - $416.34
Q4 2021	343,480	$130,674	$378.89	$331.74 - $413.42
Q3 2021	580,570	$235,485	$459.88	$394.08 - $511.67
Q2 2021	348,830	$165,070	$402.76	$358.04 - $473.74
Q1 2021	33,500	$12,866	$407.75	$346.30 - $540.63
Q4 2020	31,054	$11,490	$318.77	$280.17 - $368.03
Q3 2020	280,523	$86,704	$344.57	$253.33 - $393.19
Q2 2020	109,923	$40,710	$321.78	$244.30 - $367.51
Q1 2020	165,696	$45,255	$279.63	$191.42 - $330.38
Q2 2019	188,081	$69,242	$315.75	$292.17 - $358.95
Q1 2019	410,806	$127,633	$291.63	$261.30 - $313.54
Q4 2018	353,325	$105,973	$309.79	$263.62 - $361.78
Q3 2018	100,840	$37,015	$320.46	$267.18 - $362.46
Q2 2018	82,832	$23,134	$254.40	$219.67 - $285.17
Q1 2018	152,830	$36,132	$229.19	$201.86 - $249.65
Q4 2017	257,000	$56,152	$205.77	$192.81 - $224.44
Q3 2017	162,400	$32,350	$186.17	$163.40 - $208.50
Q2 2017	259,900	$45,098	$173.03	$162.61 - $184.32