MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

NISA INVESTMENT ADVISORS, LLC's Holding History (CIK: 0000937615)

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

Q4 2025

Shares 17,737 Value ($000) $2,834 Avg Close $148.21 Range $120.73 - $170.37

Q3 2025

Shares 17,736 Value ($000) $2,195 Avg Close $106.31 Range $88.17 - $132.24

Q2 2025

Shares 17,236 Value ($000) $1,713 Avg Close $80.86 Range $54.50 - $100.44

Q1 2025

Shares 15,764 Value ($000) $1,263 Avg Close $100.21 Range $75.89 - $124.28

Q4 2024

Shares 17,892 Value ($000) $1,868 Avg Close $106.91 Range $96.54 - $118.37

Q3 2024

Shares 19,490 Value ($000) $2,119 Avg Close $117.45 Range $99.10 - $145.63

Q2 2024

Shares 19,685 Value ($000) $2,570 Avg Close $124.55 Range $105.72 - $137.52

Q1 2024

Shares 19,490 Value ($000) $2,592 Avg Close $114.51 Range $94.23 - $132.85

Q4 2023

Shares 19,340 Value ($000) $1,990 Avg Close $79.84 Range $62.28 - $104.49

Q3 2023

Shares 22,370 Value ($000) $1,936 Avg Close $95.58 Range $81.25 - $107.67

Q2 2023

Shares 24,670 Value ($000) $2,667 Avg Close $89.53 Range $77.81 - $108.20

Q1 2023

Shares 23,680 Value ($000) $2 Avg Close $93.12 Range $80.00 - $111.27

Q4 2022

Shares 19,630 Value ($000) $2 Avg Close $78.00 Range $62.97 - $89.22

Q3 2022

Shares 19,643 Value ($000) $1,621 Avg Close $100.01 Range $79.23 - $120.27

Q2 2022

Shares 20,040 Value ($000) $2,057 Avg Close $112.92 Range $94.75 - $148.07

Q1 2022

Shares 18,360 Value ($000) $2,754 Avg Close $150.35 Range $131.30 - $175.09

Q4 2021

Shares 18,420 Value ($000) $2,861 Avg Close $151.09 Range $136.06 - $172.80

Q3 2021

Shares 18,420 Value ($000) $2,780 Avg Close $148.13 Range $133.76 - $168.78

Q2 2021

Shares 18,420 Value ($000) $3,278 Avg Close $175.09 Range $158.98 - $192.11

Q1 2021

Shares 18,420 Value ($000) $3,415 Avg Close $161.78 Range $138.78 - $185.00

Q4 2020

Shares 19,220 Value ($000) $2,892 Avg Close $125.75 Range $101.82 - $152.08

Q3 2020

Shares 19,100 Value ($000) $2,086 Avg Close $112.47 Range $97.77 - $124.64

Q2 2020

Shares 19,100 Value ($000) $2,163 Avg Close $95.31 Range $70.45 - $112.06

Q1 2020

Shares 19,200 Value ($000) $1,564 Avg Close $97.84 Range $64.00 - $116.86

Q4 2019

Shares 19,200 Value ($000) $2,112 Avg Close $99.99 Range $81.07 - $109.78

Q3 2019

Shares 18,700 Value ($000) $1,726 Avg Close $78.64 Range $68.69 - $91.29

Q2 2019

Shares 18,700 Value ($000) $1,457 Avg Close $80.27 Range $67.03 - $98.53

Q1 2019

Shares 18,700 Value ($000) $1,740 Avg Close $76.40 Range $59.36 - $88.91

Q4 2018

Shares 18,000 Value ($000) $1,163 Avg Close $68.31 Range $53.35 - $77.61

Q3 2018

Shares 18,800 Value ($000) $1,507 Avg Close $86.11 Range $74.38 - $97.19

Q2 2018

Shares 16,770 Value ($000) $1,605 Avg Close $102.60 Range $86.55 - $115.42

Q1 2018

Shares 16,940 Value ($000) $1,940 Avg Close $103.13 Range $88.32 - $120.60

Q4 2017

Shares 16,990 Value ($000) $1,606 Avg Close $93.43 Range $82.69 - $103.63

Q3 2017

Shares 16,990 Value ($000) $1,605 Avg Close $76.52 Range $62.45 - $89.48

Q2 2017

Shares 20,490 Value ($000) $1,401 Avg Close $70.74 Range $60.40 - $82.65

Q1 2017

Shares 19,070 Value ($000) $1,311 Avg Close $61.31 Range $54.85 - $65.67

Q4 2016

Shares 19,400 Value ($000) $1,152 Avg Close $50.13 Range $43.15 - $57.04

Q3 2016

Shares 19,400 Value ($000) $965 Avg Close $43.66 Range $38.22 - $50.60

Q2 2016

Shares 19,400 Value ($000) $835 Avg Close $35.80 Range $32.24 - $39.81

Q1 2016

Shares 19,400 Value ($000) $730 Avg Close $31.35 Range $28.08 - $35.11

Q4 2015

Shares 19,400 Value ($000) $698 Avg Close $32.52 Range $26.43 - $35.02

Q3 2015

Shares 19,400 Value ($000) $650 Avg Close $31.60 Range $28.82 - $34.92

Q2 2015

Shares 19,400 Value ($000) $736 Avg Close $32.93 Range $29.54 - $35.95

Q1 2015

Shares 19,400 Value ($000) $656 Avg Close $31.63 Range $29.59 - $33.22

Q4 2014

Shares 18,700 Value ($000) $684 Avg Close $31.69 Range $27.30 - $33.99

Q3 2014

Shares 18,700 Value ($000) $624 Avg Close $29.19 Range $27.47 - $31.20

Q2 2014

Shares 18,700 Value ($000) $584 Avg Close $25.69 Range $23.72 - $27.88

Q1 2014

Shares 18,700 Value ($000) $559 Avg Close $26.46 Range $25.10 - $28.61

Q4 2013

Shares 18,700 Value ($000) $560 Avg Close $25.51 Range $23.10 - $27.14

Q3 2013

Shares 18,700 Value ($000) $497 Avg Close $23.28 Range $21.63 - $25.20

Q2 2013

Shares 18,700 Value ($000) $496 Avg Close $23.45 Range $21.31 - $25.25

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	17,737	$2,834	$148.21	$120.73 - $170.37
Q3 2025	17,736	$2,195	$106.31	$88.17 - $132.24
Q2 2025	17,236	$1,713	$80.86	$54.50 - $100.44
Q1 2025	15,764	$1,263	$100.21	$75.89 - $124.28
Q4 2024	17,892	$1,868	$106.91	$96.54 - $118.37
Q3 2024	19,490	$2,119	$117.45	$99.10 - $145.63
Q2 2024	19,685	$2,570	$124.55	$105.72 - $137.52
Q1 2024	19,490	$2,592	$114.51	$94.23 - $132.85
Q4 2023	19,340	$1,990	$79.84	$62.28 - $104.49
Q3 2023	22,370	$1,936	$95.58	$81.25 - $107.67
Q2 2023	24,670	$2,667	$89.53	$77.81 - $108.20
Q1 2023	23,680	$2	$93.12	$80.00 - $111.27
Q4 2022	19,630	$2	$78.00	$62.97 - $89.22
Q3 2022	19,643	$1,621	$100.01	$79.23 - $120.27
Q2 2022	20,040	$2,057	$112.92	$94.75 - $148.07
Q1 2022	18,360	$2,754	$150.35	$131.30 - $175.09
Q4 2021	18,420	$2,861	$151.09	$136.06 - $172.80
Q3 2021	18,420	$2,780	$148.13	$133.76 - $168.78
Q2 2021	18,420	$3,278	$175.09	$158.98 - $192.11
Q1 2021	18,420	$3,415	$161.78	$138.78 - $185.00
Q4 2020	19,220	$2,892	$125.75	$101.82 - $152.08
Q3 2020	19,100	$2,086	$112.47	$97.77 - $124.64
Q2 2020	19,100	$2,163	$95.31	$70.45 - $112.06
Q1 2020	19,200	$1,564	$97.84	$64.00 - $116.86
Q4 2019	19,200	$2,112	$99.99	$81.07 - $109.78
Q3 2019	18,700	$1,726	$78.64	$68.69 - $91.29
Q2 2019	18,700	$1,457	$80.27	$67.03 - $98.53
Q1 2019	18,700	$1,740	$76.40	$59.36 - $88.91
Q4 2018	18,000	$1,163	$68.31	$53.35 - $77.61
Q3 2018	18,800	$1,507	$86.11	$74.38 - $97.19
Q2 2018	16,770	$1,605	$102.60	$86.55 - $115.42
Q1 2018	16,940	$1,940	$103.13	$88.32 - $120.60
Q4 2017	16,990	$1,606	$93.43	$82.69 - $103.63
Q3 2017	16,990	$1,605	$76.52	$62.45 - $89.48
Q2 2017	20,490	$1,401	$70.74	$60.40 - $82.65
Q1 2017	19,070	$1,311	$61.31	$54.85 - $65.67
Q4 2016	19,400	$1,152	$50.13	$43.15 - $57.04
Q3 2016	19,400	$965	$43.66	$38.22 - $50.60
Q2 2016	19,400	$835	$35.80	$32.24 - $39.81
Q1 2016	19,400	$730	$31.35	$28.08 - $35.11
Q4 2015	19,400	$698	$32.52	$26.43 - $35.02
Q3 2015	19,400	$650	$31.60	$28.82 - $34.92
Q2 2015	19,400	$736	$32.93	$29.54 - $35.95
Q1 2015	19,400	$656	$31.63	$29.59 - $33.22
Q4 2014	18,700	$684	$31.69	$27.30 - $33.99
Q3 2014	18,700	$624	$29.19	$27.47 - $31.20
Q2 2014	18,700	$584	$25.69	$23.72 - $27.88
Q1 2014	18,700	$559	$26.46	$25.10 - $28.61
Q4 2013	18,700	$560	$25.51	$23.10 - $27.14
Q3 2013	18,700	$497	$23.28	$21.63 - $25.20
Q2 2013	18,700	$496	$23.45	$21.31 - $25.25