AMKOR TECHNOLOGY INC

Ticker: AMKR CUSIP: 031652100 Class: Common Stock

RHUMBLINE ADVISERS's Holding History (CIK: 0001115418)

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

Q4 2025

Shares 303,154 Value ($000) $11,968 Avg Close $35.54 Range $28.11 - $47.28

Q3 2025

Shares 315,856 Value ($000) $8,970 Avg Close $23.96 Range $20.48 - $30.29

Q2 2025

Shares 322,653 Value ($000) $6,772 Avg Close $18.29 Range $13.89 - $21.19

Q1 2025

Shares 307,752 Value ($000) $5,558 Avg Close $22.28 Range $17.44 - $27.31

Q4 2024

Shares 309,143 Value ($000) $7,942 Avg Close $26.77 Range $23.33 - $30.71

Q3 2024

Shares 317,446 Value ($000) $9,714 Avg Close $32.91 Range $25.69 - $43.32

Q2 2024

Shares 301,170 Value ($000) $12,053 Avg Close $31.93 Range $27.12 - $39.53

Q1 2024

Shares 374,681 Value ($000) $12,080 Avg Close $30.50 Range $27.72 - $35.56

Q4 2023

Shares 370,185 Value ($000) $12,316 Avg Close $25.22 Range $16.85 - $33.10

Q3 2023

Shares 355,788 Value ($000) $8,041 Avg Close $25.22 Range $20.83 - $28.77

Q2 2023

Shares 349,816 Value ($000) $10,407 Avg Close $23.21 Range $19.46 - $28.92

Q1 2023

Shares 349,154 Value ($000) $9 Avg Close $26.02 Range $22.73 - $29.82

Q4 2022

Shares 349,154 Value ($000) $8 Avg Close $21.98 Range $15.71 - $27.58

Q3 2022

Shares 346,479 Value ($000) $5,907 Avg Close $18.20 Range $14.08 - $21.90

Q2 2022

Shares 334,294 Value ($000) $5,666 Avg Close $17.93 Range $15.37 - $20.90

Q1 2022

Shares 307,054 Value ($000) $6,669 Avg Close $21.32 Range $18.61 - $25.07

Q4 2021

Shares 308,181 Value ($000) $7,640 Avg Close $21.87 Range $19.83 - $24.52

Q3 2021

Shares 310,492 Value ($000) $7,747 Avg Close $23.93 Range $19.34 - $27.70

Q2 2021

Shares 324,588 Value ($000) $7,683 Avg Close $20.84 Range $16.88 - $25.74

Q1 2021

Shares 325,020 Value ($000) $7,706 Avg Close $19.14 Range $13.85 - $24.36

Q4 2020

Shares 166,319 Value ($000) $2,508 Avg Close $12.70 Range $10.09 - $14.70

Q3 2020

Shares 169,018 Value ($000) $1,893 Avg Close $11.54 Range $9.98 - $14.72

Q2 2020

Shares 198,648 Value ($000) $2,445 Avg Close $9.62 Range $6.65 - $12.20

Q1 2020

Shares 194,776 Value ($000) $1,517 Avg Close $10.13 Range $5.03 - $13.81

Q4 2019

Shares 176,094 Value ($000) $2,289 Avg Close $11.12 Range $8.40 - $14.21

Q3 2019

Shares 174,649 Value ($000) $1,589 Avg Close $7.99 Range $6.78 - $9.12

Q2 2019

Shares 160,875 Value ($000) $1,200 Avg Close $7.29 Range $5.97 - $9.08

Q1 2019

Shares 153,157 Value ($000) $1,308 Avg Close $7.71 Range $5.86 - $8.92

Q4 2018

Shares 152,412 Value ($000) $1,000 Avg Close $6.15 Range $5.33 - $7.05

Q3 2018

Shares 109,121 Value ($000) $806 Avg Close $7.92 Range $6.80 - $8.76

Q2 2018

Shares 108,961 Value ($000) $936 Avg Close $8.50 Range $7.63 - $9.77

Q1 2018

Shares 107,596 Value ($000) $1,090 Avg Close $9.70 Range $8.20 - $10.88

Q4 2017

Shares 110,245 Value ($000) $1,108 Avg Close $9.97 Range $9.24 - $11.07

Q3 2017

Shares 128,352 Value ($000) $1,354 Avg Close $8.92 Range $7.75 - $10.48

Q2 2017

Shares 127,662 Value ($000) $1,247 Avg Close $10.55 Range $8.97 - $11.63

Q1 2017

Shares 126,326 Value ($000) $1,464 Avg Close $9.61 Range $8.43 - $10.85

Q4 2016

Shares 120,760 Value ($000) $1,274 Avg Close $9.93 Range $8.41 - $11.63

Q3 2016

Shares 125,189 Value ($000) $1,217 Avg Close $7.46 Range $5.13 - $9.17

Q2 2016

Shares 123,539 Value ($000) $710 Avg Close $5.44 Range $4.91 - $6.06

Q1 2016

Shares 156,220 Value ($000) $920 Avg Close $5.06 Range $3.81 - $5.78

Q4 2015

Shares 139,145 Value ($000) $846 Avg Close $5.64 Range $4.05 - $6.57

Q3 2015

Shares 134,175 Value ($000) $602 Avg Close $4.58 Range $3.74 - $5.73

Q2 2015

Shares 127,144 Value ($000) $760 Avg Close $6.72 Range $5.49 - $8.46

Q1 2015

Shares 101,509 Value ($000) $897 Avg Close $7.58 Range $5.83 - $9.44

Q4 2014

Shares 97,999 Value ($000) $696 Avg Close $6.46 Range $5.38 - $8.10

Q3 2014

Shares 92,689 Value ($000) $780 Avg Close $9.21 Range $7.83 - $10.86

Q2 2014

Shares 92,859 Value ($000) $1,038 Avg Close $8.60 Range $6.24 - $11.43

Q1 2014

Shares 93,224 Value ($000) $640 Avg Close $5.44 Range $4.68 - $6.41

Q4 2013

Shares 96,054 Value ($000) $589 Avg Close $4.97 Range $3.99 - $5.77

Q3 2013

Shares 102,454 Value ($000) $440 Avg Close $4.00 Range $3.73 - $4.42

Q2 2013

Shares 97,342 Value ($000) $410 Avg Close $3.93 Range $3.31 - $4.40

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	303,154	$11,968	$35.54	$28.11 - $47.28
Q3 2025	315,856	$8,970	$23.96	$20.48 - $30.29
Q2 2025	322,653	$6,772	$18.29	$13.89 - $21.19
Q1 2025	307,752	$5,558	$22.28	$17.44 - $27.31
Q4 2024	309,143	$7,942	$26.77	$23.33 - $30.71
Q3 2024	317,446	$9,714	$32.91	$25.69 - $43.32
Q2 2024	301,170	$12,053	$31.93	$27.12 - $39.53
Q1 2024	374,681	$12,080	$30.50	$27.72 - $35.56
Q4 2023	370,185	$12,316	$25.22	$16.85 - $33.10
Q3 2023	355,788	$8,041	$25.22	$20.83 - $28.77
Q2 2023	349,816	$10,407	$23.21	$19.46 - $28.92
Q1 2023	349,154	$9	$26.02	$22.73 - $29.82
Q4 2022	349,154	$8	$21.98	$15.71 - $27.58
Q3 2022	346,479	$5,907	$18.20	$14.08 - $21.90
Q2 2022	334,294	$5,666	$17.93	$15.37 - $20.90
Q1 2022	307,054	$6,669	$21.32	$18.61 - $25.07
Q4 2021	308,181	$7,640	$21.87	$19.83 - $24.52
Q3 2021	310,492	$7,747	$23.93	$19.34 - $27.70
Q2 2021	324,588	$7,683	$20.84	$16.88 - $25.74
Q1 2021	325,020	$7,706	$19.14	$13.85 - $24.36
Q4 2020	166,319	$2,508	$12.70	$10.09 - $14.70
Q3 2020	169,018	$1,893	$11.54	$9.98 - $14.72
Q2 2020	198,648	$2,445	$9.62	$6.65 - $12.20
Q1 2020	194,776	$1,517	$10.13	$5.03 - $13.81
Q4 2019	176,094	$2,289	$11.12	$8.40 - $14.21
Q3 2019	174,649	$1,589	$7.99	$6.78 - $9.12
Q2 2019	160,875	$1,200	$7.29	$5.97 - $9.08
Q1 2019	153,157	$1,308	$7.71	$5.86 - $8.92
Q4 2018	152,412	$1,000	$6.15	$5.33 - $7.05
Q3 2018	109,121	$806	$7.92	$6.80 - $8.76
Q2 2018	108,961	$936	$8.50	$7.63 - $9.77
Q1 2018	107,596	$1,090	$9.70	$8.20 - $10.88
Q4 2017	110,245	$1,108	$9.97	$9.24 - $11.07
Q3 2017	128,352	$1,354	$8.92	$7.75 - $10.48
Q2 2017	127,662	$1,247	$10.55	$8.97 - $11.63
Q1 2017	126,326	$1,464	$9.61	$8.43 - $10.85
Q4 2016	120,760	$1,274	$9.93	$8.41 - $11.63
Q3 2016	125,189	$1,217	$7.46	$5.13 - $9.17
Q2 2016	123,539	$710	$5.44	$4.91 - $6.06
Q1 2016	156,220	$920	$5.06	$3.81 - $5.78
Q4 2015	139,145	$846	$5.64	$4.05 - $6.57
Q3 2015	134,175	$602	$4.58	$3.74 - $5.73
Q2 2015	127,144	$760	$6.72	$5.49 - $8.46
Q1 2015	101,509	$897	$7.58	$5.83 - $9.44
Q4 2014	97,999	$696	$6.46	$5.38 - $8.10
Q3 2014	92,689	$780	$9.21	$7.83 - $10.86
Q2 2014	92,859	$1,038	$8.60	$6.24 - $11.43
Q1 2014	93,224	$640	$5.44	$4.68 - $6.41
Q4 2013	96,054	$589	$4.97	$3.99 - $5.77
Q3 2013	102,454	$440	$4.00	$3.73 - $4.42
Q2 2013	97,342	$410	$3.93	$3.31 - $4.40