AMKOR TECHNOLOGY INC

Ticker: AMKR CUSIP: 031652100 Class: Common Stock

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q4 2025

Shares 390,540 Value ($000) $15,419 Avg Close $35.54 Range $28.11 - $47.28

Q3 2025

Shares 294,736 Value ($000) $8,371 Avg Close $23.96 Range $20.48 - $30.29

Q2 2025

Shares 267,624 Value ($000) $5,617 Avg Close $18.29 Range $13.89 - $21.19

Q1 2025

Shares 3,225,583 Value ($000) $58,254 Avg Close $22.28 Range $17.44 - $27.31

Q4 2024

Shares 4,081,481 Value ($000) $104,853 Avg Close $26.77 Range $23.33 - $30.71

Q3 2024

Shares 3,524,720 Value ($000) $107,856 Avg Close $32.91 Range $25.69 - $43.32

Q2 2024

Shares 3,215,134 Value ($000) $128,670 Avg Close $31.93 Range $27.12 - $39.53

Q1 2024

Shares 3,856,418 Value ($000) $124,331 Avg Close $30.50 Range $27.72 - $35.56

Q4 2023

Shares 4,431,217 Value ($000) $147,427 Avg Close $25.22 Range $16.85 - $33.10

Q3 2023

Shares 3,891,815 Value ($000) $87,955 Avg Close $25.22 Range $20.83 - $28.77

Q2 2023

Shares 4,182,333 Value ($000) $124,424 Avg Close $23.21 Range $19.46 - $28.92

Q1 2023

Shares 225,112 Value ($000) $5,857 Avg Close $26.02 Range $22.73 - $29.82

Q4 2022

Shares 242,632 Value ($000) $5,818 Avg Close $21.98 Range $15.71 - $27.58

Q3 2022

Shares 241,999 Value ($000) $4,126 Avg Close $18.20 Range $14.08 - $21.90

Q2 2022

Shares 243,485 Value ($000) $4,127 Avg Close $17.93 Range $15.37 - $20.90

Q1 2022

Shares 240,333 Value ($000) $5,220 Avg Close $21.32 Range $18.61 - $25.07

Q4 2021

Shares 224,895 Value ($000) $5,575 Avg Close $21.87 Range $19.83 - $24.52

Q3 2021

Shares 234,643 Value ($000) $5,854 Avg Close $23.93 Range $19.34 - $27.70

Q2 2021

Shares 268,103 Value ($000) $6,346 Avg Close $20.84 Range $16.88 - $25.74

Q1 2021

Shares 252,173 Value ($000) $5,979 Avg Close $19.14 Range $13.85 - $24.36

Q4 2020

Shares 159,428 Value ($000) $2,404 Avg Close $12.70 Range $10.09 - $14.70

Q3 2020

Shares 163,942 Value ($000) $1,836 Avg Close $11.54 Range $9.98 - $14.72

Q2 2020

Shares 185,017 Value ($000) $2,278 Avg Close $9.62 Range $6.65 - $12.20

Q1 2020

Shares 153,800 Value ($000) $1,198 Avg Close $10.13 Range $5.03 - $13.81

Q4 2019

Shares 156,450 Value ($000) $2,034 Avg Close $11.12 Range $8.40 - $14.21

Q3 2019

Shares 156,520 Value ($000) $1,424 Avg Close $7.99 Range $6.78 - $9.12

Q2 2019

Shares 157,620 Value ($000) $1,176 Avg Close $7.29 Range $5.97 - $9.08

Q1 2019

Shares 157,700 Value ($000) $1,347 Avg Close $7.71 Range $5.86 - $8.92

Q4 2018

Shares 157,900 Value ($000) $1,036 Avg Close $6.15 Range $5.33 - $7.05

Q3 2018

Shares 151,700 Value ($000) $1,121 Avg Close $7.92 Range $6.80 - $8.76

Q2 2018

Shares 151,700 Value ($000) $1,303 Avg Close $8.50 Range $7.63 - $9.77

Q1 2018

Shares 244,450 Value ($000) $2,476 Avg Close $9.70 Range $8.20 - $10.88

Q4 2017

Shares 252,710 Value ($000) $2,540 Avg Close $9.97 Range $9.24 - $11.07

Q3 2017

Shares 176,830 Value ($000) $1,866 Avg Close $8.92 Range $7.75 - $10.48

Q2 2017

Shares 140,000 Value ($000) $1,368 Avg Close $10.55 Range $8.97 - $11.63

Q1 2017

Shares 140,300 Value ($000) $1,626 Avg Close $9.61 Range $8.43 - $10.85

Q4 2016

Shares 430,890 Value ($000) $4,546 Avg Close $9.93 Range $8.41 - $11.63

Q3 2016

Shares 169,800 Value ($000) $1,650 Avg Close $7.46 Range $5.13 - $9.17

Q2 2016

Shares 184,700 Value ($000) $1,062 Avg Close $5.44 Range $4.91 - $6.06

Q1 2016

Shares 134,300 Value ($000) $791 Avg Close $5.06 Range $3.81 - $5.78

Q4 2015

Shares 130,800 Value ($000) $795 Avg Close $5.64 Range $4.05 - $6.57

Q3 2015

Shares 229,112 Value ($000) $1,029 Avg Close $4.58 Range $3.74 - $5.73

Q2 2015

Shares 152,100 Value ($000) $910 Avg Close $6.72 Range $5.49 - $8.46

Q1 2015

Shares 175,400 Value ($000) $1,550 Avg Close $7.58 Range $5.83 - $9.44

Q4 2014

Shares 175,400 Value ($000) $1,245 Avg Close $6.46 Range $5.38 - $8.10

Q3 2014

Shares 175,400 Value ($000) $1,475 Avg Close $9.21 Range $7.83 - $10.86

Q2 2014

Shares 175,400 Value ($000) $1,961 Avg Close $8.60 Range $6.24 - $11.43

Q1 2014

Shares 128,628 Value ($000) $882 Avg Close $5.44 Range $4.68 - $6.41

Q4 2013

Shares 155,626 Value ($000) $954 Avg Close $4.97 Range $3.99 - $5.77

Q3 2013

Shares 1,724,922 Value ($000) $7,400 Avg Close $4.00 Range $3.73 - $4.42

Q2 2013

Shares 5,960,535 Value ($000) $25,094 Avg Close $3.93 Range $3.31 - $4.40

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	390,540	$15,419	$35.54	$28.11 - $47.28
Q3 2025	294,736	$8,371	$23.96	$20.48 - $30.29
Q2 2025	267,624	$5,617	$18.29	$13.89 - $21.19
Q1 2025	3,225,583	$58,254	$22.28	$17.44 - $27.31
Q4 2024	4,081,481	$104,853	$26.77	$23.33 - $30.71
Q3 2024	3,524,720	$107,856	$32.91	$25.69 - $43.32
Q2 2024	3,215,134	$128,670	$31.93	$27.12 - $39.53
Q1 2024	3,856,418	$124,331	$30.50	$27.72 - $35.56
Q4 2023	4,431,217	$147,427	$25.22	$16.85 - $33.10
Q3 2023	3,891,815	$87,955	$25.22	$20.83 - $28.77
Q2 2023	4,182,333	$124,424	$23.21	$19.46 - $28.92
Q1 2023	225,112	$5,857	$26.02	$22.73 - $29.82
Q4 2022	242,632	$5,818	$21.98	$15.71 - $27.58
Q3 2022	241,999	$4,126	$18.20	$14.08 - $21.90
Q2 2022	243,485	$4,127	$17.93	$15.37 - $20.90
Q1 2022	240,333	$5,220	$21.32	$18.61 - $25.07
Q4 2021	224,895	$5,575	$21.87	$19.83 - $24.52
Q3 2021	234,643	$5,854	$23.93	$19.34 - $27.70
Q2 2021	268,103	$6,346	$20.84	$16.88 - $25.74
Q1 2021	252,173	$5,979	$19.14	$13.85 - $24.36
Q4 2020	159,428	$2,404	$12.70	$10.09 - $14.70
Q3 2020	163,942	$1,836	$11.54	$9.98 - $14.72
Q2 2020	185,017	$2,278	$9.62	$6.65 - $12.20
Q1 2020	153,800	$1,198	$10.13	$5.03 - $13.81
Q4 2019	156,450	$2,034	$11.12	$8.40 - $14.21
Q3 2019	156,520	$1,424	$7.99	$6.78 - $9.12
Q2 2019	157,620	$1,176	$7.29	$5.97 - $9.08
Q1 2019	157,700	$1,347	$7.71	$5.86 - $8.92
Q4 2018	157,900	$1,036	$6.15	$5.33 - $7.05
Q3 2018	151,700	$1,121	$7.92	$6.80 - $8.76
Q2 2018	151,700	$1,303	$8.50	$7.63 - $9.77
Q1 2018	244,450	$2,476	$9.70	$8.20 - $10.88
Q4 2017	252,710	$2,540	$9.97	$9.24 - $11.07
Q3 2017	176,830	$1,866	$8.92	$7.75 - $10.48
Q2 2017	140,000	$1,368	$10.55	$8.97 - $11.63
Q1 2017	140,300	$1,626	$9.61	$8.43 - $10.85
Q4 2016	430,890	$4,546	$9.93	$8.41 - $11.63
Q3 2016	169,800	$1,650	$7.46	$5.13 - $9.17
Q2 2016	184,700	$1,062	$5.44	$4.91 - $6.06
Q1 2016	134,300	$791	$5.06	$3.81 - $5.78
Q4 2015	130,800	$795	$5.64	$4.05 - $6.57
Q3 2015	229,112	$1,029	$4.58	$3.74 - $5.73
Q2 2015	152,100	$910	$6.72	$5.49 - $8.46
Q1 2015	175,400	$1,550	$7.58	$5.83 - $9.44
Q4 2014	175,400	$1,245	$6.46	$5.38 - $8.10
Q3 2014	175,400	$1,475	$9.21	$7.83 - $10.86
Q2 2014	175,400	$1,961	$8.60	$6.24 - $11.43
Q1 2014	128,628	$882	$5.44	$4.68 - $6.41
Q4 2013	155,626	$954	$4.97	$3.99 - $5.77
Q3 2013	1,724,922	$7,400	$4.00	$3.73 - $4.42
Q2 2013	5,960,535	$25,094	$3.93	$3.31 - $4.40