AMTECH SYS INC

Ticker: ASYS CUSIP: 032332504 Class: COM PAR $0.01N

VANGUARD GROUP INC's Holding History (CIK: 0000102909)

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

Q4 2025

Shares 631,905 Value ($000) $7,930 Avg Close $9.01 Range $6.75 - $13.26

Q3 2025

Shares 676,006 Value ($000) $6,260 Avg Close $6.11 Range $4.30 - $10.25

Q2 2025

Shares 658,907 Value ($000) $2,926 Avg Close $3.91 Range $3.20 - $4.95

Q1 2025

Shares 670,784 Value ($000) $3,240 Avg Close $5.16 Range $4.74 - $6.41

Q4 2024

Shares 670,784 Value ($000) $3,656 Avg Close $5.67 Range $4.95 - $6.14

Q3 2024

Shares 674,175 Value ($000) $3,910 Avg Close $6.09 Range $5.21 - $6.96

Q2 2024

Shares 674,175 Value ($000) $3,951 Avg Close $5.40 Range $4.60 - $6.68

Q1 2024

Shares 674,175 Value ($000) $3,647 Avg Close $4.51 Range $3.37 - $5.45

Q4 2023

Shares 674,175 Value ($000) $2,832 Avg Close $6.79 Range $3.59 - $8.12

Q3 2023

Shares 666,012 Value ($000) $5,075 Avg Close $9.09 Range $7.30 - $11.98

Q2 2023

Shares 622,412 Value ($000) $5,950 Avg Close $9.08 Range $8.44 - $10.44

Q1 2023

Shares 658,292 Value ($000) $6,280 Avg Close $9.39 Range $7.81 - $11.44

Q4 2022

Shares 498,176 Value ($000) $3,786 Avg Close $9.06 Range $7.50 - $11.73

Q3 2022

Shares 471,380 Value ($000) $4,006 Avg Close $9.21 Range $6.66 - $13.45

Q2 2022

Shares 471,380 Value ($000) $3,441 Avg Close $8.63 Range $6.99 - $10.26

Q1 2022

Shares 471,380 Value ($000) $4,742 Avg Close $9.55 Range $7.81 - $11.10

Q4 2021

Shares 473,940 Value ($000) $4,682 Avg Close $11.54 Range $8.38 - $15.78

Q3 2021

Shares 522,972 Value ($000) $5,977 Avg Close $10.24 Range $8.75 - $12.70

Q2 2021

Shares 522,972 Value ($000) $5,041 Avg Close $10.26 Range $8.35 - $14.24

Q1 2021

Shares 539,929 Value ($000) $6,382 Avg Close $9.25 Range $6.25 - $13.20

Q4 2020

Shares 776,533 Value ($000) $4,954 Avg Close $5.95 Range $4.90 - $7.17

Q3 2020

Shares 907,191 Value ($000) $4,437 Avg Close $5.15 Range $4.71 - $5.94

Q2 2020

Shares 811,861 Value ($000) $3,954 Avg Close $4.94 Range $4.18 - $5.71

Q1 2020

Shares 815,955 Value ($000) $3,549 Avg Close $5.63 Range $3.55 - $7.96

Q4 2019

Shares 476,943 Value ($000) $3,415 Avg Close $5.80 Range $4.75 - $7.21

Q3 2019

Shares 434,683 Value ($000) $2,304 Avg Close $5.48 Range $4.79 - $6.25

Q2 2019

Shares 398,102 Value ($000) $2,189 Avg Close $6.10 Range $4.95 - $7.18

Q1 2019

Shares 593,225 Value ($000) $3,162 Avg Close $4.94 Range $4.35 - $5.45

Q4 2018

Shares 587,685 Value ($000) $2,663 Avg Close $4.88 Range $4.03 - $5.83

Q3 2018

Shares 550,096 Value ($000) $2,938 Avg Close $5.48 Range $4.56 - $6.23

Q2 2018

Shares 559,447 Value ($000) $3,384 Avg Close $7.80 Range $5.85 - $10.67

Q1 2018

Shares 549,856 Value ($000) $4,025 Avg Close $9.00 Range $6.92 - $11.53

Q4 2017

Shares 468,496 Value ($000) $4,718 Avg Close $12.22 Range $9.31 - $15.45

Q3 2017

Shares 399,076 Value ($000) $4,781 Avg Close $10.06 Range $8.13 - $13.06

Q2 2017

Shares 499,383 Value ($000) $4,215 Avg Close $7.31 Range $5.17 - $9.19

Q1 2017

Shares 519,613 Value ($000) $2,858 Avg Close $5.48 Range $3.99 - $6.69

Q4 2016

Shares 495,629 Value ($000) $2,106 Avg Close $4.53 Range $4.00 - $5.71

Q3 2016

Shares 499,118 Value ($000) $2,475 Avg Close $5.53 Range $4.75 - $6.52

Q2 2016

Shares 493,218 Value ($000) $2,944 Avg Close $6.35 Range $5.53 - $7.14

Q1 2016

Shares 495,330 Value ($000) $3,215 Avg Close $5.64 Range $4.41 - $7.83

Q4 2015

Shares 495,330 Value ($000) $3,101 Avg Close $5.17 Range $4.12 - $8.40

Q3 2015

Shares 447,813 Value ($000) $1,926 Avg Close $6.60 Range $4.27 - $11.11

Q2 2015

Shares 451,568 Value ($000) $4,691 Avg Close $11.09 Range $9.84 - $12.93

Q1 2015

Shares 408,159 Value ($000) $4,563 Avg Close $10.05 Range $7.96 - $12.59

Q4 2014

Shares 326,764 Value ($000) $3,316 Avg Close $9.39 Range $7.52 - $11.15

Q3 2014

Shares 320,574 Value ($000) $3,430 Avg Close $10.51 Range $8.47 - $12.37

Q2 2014

Shares 310,049 Value ($000) $3,792 Avg Close $9.91 Range $7.58 - $13.00

Q1 2014

Shares 307,149 Value ($000) $3,738 Avg Close $10.42 Range $6.87 - $13.74

Q4 2013

Shares 276,593 Value ($000) $1,925 Avg Close $7.78 Range $6.19 - $9.21

Q3 2013

Shares 260,172 Value ($000) $1,899 Avg Close $6.68 Range $5.44 - $7.70

Q2 2013

Shares 254,622 Value ($000) $1,619 Avg Close $4.48 Range $3.21 - $7.93

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	631,905	$7,930	$9.01	$6.75 - $13.26
Q3 2025	676,006	$6,260	$6.11	$4.30 - $10.25
Q2 2025	658,907	$2,926	$3.91	$3.20 - $4.95
Q1 2025	670,784	$3,240	$5.16	$4.74 - $6.41
Q4 2024	670,784	$3,656	$5.67	$4.95 - $6.14
Q3 2024	674,175	$3,910	$6.09	$5.21 - $6.96
Q2 2024	674,175	$3,951	$5.40	$4.60 - $6.68
Q1 2024	674,175	$3,647	$4.51	$3.37 - $5.45
Q4 2023	674,175	$2,832	$6.79	$3.59 - $8.12
Q3 2023	666,012	$5,075	$9.09	$7.30 - $11.98
Q2 2023	622,412	$5,950	$9.08	$8.44 - $10.44
Q1 2023	658,292	$6,280	$9.39	$7.81 - $11.44
Q4 2022	498,176	$3,786	$9.06	$7.50 - $11.73
Q3 2022	471,380	$4,006	$9.21	$6.66 - $13.45
Q2 2022	471,380	$3,441	$8.63	$6.99 - $10.26
Q1 2022	471,380	$4,742	$9.55	$7.81 - $11.10
Q4 2021	473,940	$4,682	$11.54	$8.38 - $15.78
Q3 2021	522,972	$5,977	$10.24	$8.75 - $12.70
Q2 2021	522,972	$5,041	$10.26	$8.35 - $14.24
Q1 2021	539,929	$6,382	$9.25	$6.25 - $13.20
Q4 2020	776,533	$4,954	$5.95	$4.90 - $7.17
Q3 2020	907,191	$4,437	$5.15	$4.71 - $5.94
Q2 2020	811,861	$3,954	$4.94	$4.18 - $5.71
Q1 2020	815,955	$3,549	$5.63	$3.55 - $7.96
Q4 2019	476,943	$3,415	$5.80	$4.75 - $7.21
Q3 2019	434,683	$2,304	$5.48	$4.79 - $6.25
Q2 2019	398,102	$2,189	$6.10	$4.95 - $7.18
Q1 2019	593,225	$3,162	$4.94	$4.35 - $5.45
Q4 2018	587,685	$2,663	$4.88	$4.03 - $5.83
Q3 2018	550,096	$2,938	$5.48	$4.56 - $6.23
Q2 2018	559,447	$3,384	$7.80	$5.85 - $10.67
Q1 2018	549,856	$4,025	$9.00	$6.92 - $11.53
Q4 2017	468,496	$4,718	$12.22	$9.31 - $15.45
Q3 2017	399,076	$4,781	$10.06	$8.13 - $13.06
Q2 2017	499,383	$4,215	$7.31	$5.17 - $9.19
Q1 2017	519,613	$2,858	$5.48	$3.99 - $6.69
Q4 2016	495,629	$2,106	$4.53	$4.00 - $5.71
Q3 2016	499,118	$2,475	$5.53	$4.75 - $6.52
Q2 2016	493,218	$2,944	$6.35	$5.53 - $7.14
Q1 2016	495,330	$3,215	$5.64	$4.41 - $7.83
Q4 2015	495,330	$3,101	$5.17	$4.12 - $8.40
Q3 2015	447,813	$1,926	$6.60	$4.27 - $11.11
Q2 2015	451,568	$4,691	$11.09	$9.84 - $12.93
Q1 2015	408,159	$4,563	$10.05	$7.96 - $12.59
Q4 2014	326,764	$3,316	$9.39	$7.52 - $11.15
Q3 2014	320,574	$3,430	$10.51	$8.47 - $12.37
Q2 2014	310,049	$3,792	$9.91	$7.58 - $13.00
Q1 2014	307,149	$3,738	$10.42	$6.87 - $13.74
Q4 2013	276,593	$1,925	$7.78	$6.19 - $9.21
Q3 2013	260,172	$1,899	$6.68	$5.44 - $7.70
Q2 2013	254,622	$1,619	$4.48	$3.21 - $7.93