MKS INSTRS INC

Ticker: MKSI CUSIP: 55306N104 Class: EQTY

ROYAL BANK OF CANADA's Holding History (CIK: 0001000275)

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

Q4 2025

Shares 309,842 Value ($000) $49,514 Avg Close $148.21 Range $120.73 - $170.37

Q3 2025

Shares 679,796 Value ($000) $84,139 Avg Close $106.31 Range $88.17 - $132.24

Q2 2025

Shares 772,966 Value ($000) $76,802 Avg Close $80.86 Range $54.50 - $100.44

Q1 2025

Shares 524,837 Value ($000) $42,066 Avg Close $100.21 Range $75.89 - $124.28

Q4 2024

Shares 409,341 Value ($000) $42,730 Avg Close $106.91 Range $96.54 - $118.37

Q3 2024

Shares 400,000 Value ($000) $43,483 Avg Close $117.45 Range $99.10 - $145.63

Q2 2024

Shares 358,971 Value ($000) $46,874 Avg Close $124.55 Range $105.72 - $137.52

Q1 2024

Shares 278,115 Value ($000) $36,990 Avg Close $114.51 Range $94.23 - $132.85

Q4 2023

Shares 284,598 Value ($000) $29,277 Avg Close $79.84 Range $62.28 - $104.49

Q3 2023

Shares 220,701 Value ($000) $19,099 Avg Close $95.58 Range $81.25 - $107.67

Q2 2023

Shares 295,486 Value ($000) $31,941 Avg Close $89.53 Range $77.81 - $108.20

Q1 2023

Shares 275,613 Value ($000) $24,426 Avg Close $93.12 Range $80.00 - $111.27

Q4 2022

Shares 244,943 Value ($000) $20,753 Avg Close $78.00 Range $62.97 - $89.22

Q3 2022

Shares 312,075 Value ($000) $25,789 Avg Close $100.01 Range $79.23 - $120.27

Q2 2022

Shares 196,893 Value ($000) $20,207 Avg Close $112.92 Range $94.75 - $148.07

Q1 2022

Shares 156,064 Value ($000) $23,409 Avg Close $150.35 Range $131.30 - $175.09

Q4 2021

Shares 137,035 Value ($000) $23,867 Avg Close $151.09 Range $136.06 - $172.80

Q3 2021

Shares 131,048 Value ($000) $19,775 Avg Close $148.13 Range $133.76 - $168.78

Q2 2021

Shares 173,390 Value ($000) $30,855 Avg Close $175.09 Range $158.98 - $192.11

Q1 2021

Shares 175,917 Value ($000) $32,618 Avg Close $161.78 Range $138.78 - $185.00

Q4 2020

Shares 199,095 Value ($000) $29,953 Avg Close $125.75 Range $101.82 - $152.08

Q3 2020

Shares 198,500 Value ($000) $21,682 Avg Close $112.47 Range $97.77 - $124.64

Q2 2020

Shares 206,521 Value ($000) $23,387 Avg Close $95.31 Range $70.45 - $112.06

Q1 2020

Shares 156,468 Value ($000) $12,745 Avg Close $97.84 Range $64.00 - $116.86

Q4 2019

Shares 175,674 Value ($000) $19,326 Avg Close $99.99 Range $81.07 - $109.78

Q3 2019

Shares 244,660 Value ($000) $22,578 Avg Close $78.64 Range $68.69 - $91.29

Q2 2019

Shares 290,102 Value ($000) $22,596 Avg Close $80.27 Range $67.03 - $98.53

Q1 2019

Shares 363,015 Value ($000) $33,779 Avg Close $76.40 Range $59.36 - $88.91

Q4 2018

Shares 341,052 Value ($000) $22,035 Avg Close $68.31 Range $53.35 - $77.61

Q3 2018

Shares 536,852 Value ($000) $43,027 Avg Close $86.11 Range $74.38 - $97.19

Q2 2018

Shares 688,576 Value ($000) $65,897 Avg Close $102.60 Range $86.55 - $115.42

Q1 2018

Shares 838,335 Value ($000) $96,952 Avg Close $103.13 Range $88.32 - $120.60

Q4 2017

Shares 847,191 Value ($000) $80,059 Avg Close $93.43 Range $82.69 - $103.63

Q3 2017

Shares 981,955 Value ($000) $92,746 Avg Close $76.52 Range $62.45 - $89.48

Q2 2017

Shares 1,047,777 Value ($000) $70,517 Avg Close $70.74 Range $60.40 - $82.65

Q1 2017

Shares 1,125,518 Value ($000) $77,379 Avg Close $61.31 Range $54.85 - $65.67

Q4 2016

Shares 1,081,030 Value ($000) $64,213 Avg Close $50.13 Range $43.15 - $57.04

Q3 2016

Shares 973,480 Value ($000) $48,411 Avg Close $43.66 Range $38.22 - $50.60

Q2 2016

Shares 306,590 Value ($000) $13,202 Avg Close $35.80 Range $32.24 - $39.81

Q1 2016

Shares 338,274 Value ($000) $12,735 Avg Close $31.35 Range $28.08 - $35.11

Q4 2015

Shares 455,544 Value ($000) $16,401 Avg Close $32.52 Range $26.43 - $35.02

Q3 2015

Shares 5,075 Value ($000) $170 Avg Close $31.60 Range $28.82 - $34.92

Q2 2015

Shares 5,550 Value ($000) $211 Avg Close $32.93 Range $29.54 - $35.95

Q1 2015

Shares 17,469 Value ($000) $591 Avg Close $31.63 Range $29.59 - $33.22

Q4 2014

Shares 10,332 Value ($000) $378 Avg Close $31.69 Range $27.30 - $33.99

Q3 2014

Shares 16,723 Value ($000) $558 Avg Close $29.19 Range $27.47 - $31.20

Q2 2014

Shares 17,942 Value ($000) $561 Avg Close $25.69 Range $23.72 - $27.88

Q1 2014

Shares 11,503 Value ($000) $344 Avg Close $26.46 Range $25.10 - $28.61

Q4 2013

Shares 12,578 Value ($000) $376 Avg Close $25.51 Range $23.10 - $27.14

Q3 2013

Shares 10,103 Value ($000) $269 Avg Close $23.28 Range $21.63 - $25.20

Q2 2013

Shares 12,296 Value ($000) $326 Avg Close $23.45 Range $21.31 - $25.25

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	309,842	$49,514	$148.21	$120.73 - $170.37
Q3 2025	679,796	$84,139	$106.31	$88.17 - $132.24
Q2 2025	772,966	$76,802	$80.86	$54.50 - $100.44
Q1 2025	524,837	$42,066	$100.21	$75.89 - $124.28
Q4 2024	409,341	$42,730	$106.91	$96.54 - $118.37
Q3 2024	400,000	$43,483	$117.45	$99.10 - $145.63
Q2 2024	358,971	$46,874	$124.55	$105.72 - $137.52
Q1 2024	278,115	$36,990	$114.51	$94.23 - $132.85
Q4 2023	284,598	$29,277	$79.84	$62.28 - $104.49
Q3 2023	220,701	$19,099	$95.58	$81.25 - $107.67
Q2 2023	295,486	$31,941	$89.53	$77.81 - $108.20
Q1 2023	275,613	$24,426	$93.12	$80.00 - $111.27
Q4 2022	244,943	$20,753	$78.00	$62.97 - $89.22
Q3 2022	312,075	$25,789	$100.01	$79.23 - $120.27
Q2 2022	196,893	$20,207	$112.92	$94.75 - $148.07
Q1 2022	156,064	$23,409	$150.35	$131.30 - $175.09
Q4 2021	137,035	$23,867	$151.09	$136.06 - $172.80
Q3 2021	131,048	$19,775	$148.13	$133.76 - $168.78
Q2 2021	173,390	$30,855	$175.09	$158.98 - $192.11
Q1 2021	175,917	$32,618	$161.78	$138.78 - $185.00
Q4 2020	199,095	$29,953	$125.75	$101.82 - $152.08
Q3 2020	198,500	$21,682	$112.47	$97.77 - $124.64
Q2 2020	206,521	$23,387	$95.31	$70.45 - $112.06
Q1 2020	156,468	$12,745	$97.84	$64.00 - $116.86
Q4 2019	175,674	$19,326	$99.99	$81.07 - $109.78
Q3 2019	244,660	$22,578	$78.64	$68.69 - $91.29
Q2 2019	290,102	$22,596	$80.27	$67.03 - $98.53
Q1 2019	363,015	$33,779	$76.40	$59.36 - $88.91
Q4 2018	341,052	$22,035	$68.31	$53.35 - $77.61
Q3 2018	536,852	$43,027	$86.11	$74.38 - $97.19
Q2 2018	688,576	$65,897	$102.60	$86.55 - $115.42
Q1 2018	838,335	$96,952	$103.13	$88.32 - $120.60
Q4 2017	847,191	$80,059	$93.43	$82.69 - $103.63
Q3 2017	981,955	$92,746	$76.52	$62.45 - $89.48
Q2 2017	1,047,777	$70,517	$70.74	$60.40 - $82.65
Q1 2017	1,125,518	$77,379	$61.31	$54.85 - $65.67
Q4 2016	1,081,030	$64,213	$50.13	$43.15 - $57.04
Q3 2016	973,480	$48,411	$43.66	$38.22 - $50.60
Q2 2016	306,590	$13,202	$35.80	$32.24 - $39.81
Q1 2016	338,274	$12,735	$31.35	$28.08 - $35.11
Q4 2015	455,544	$16,401	$32.52	$26.43 - $35.02
Q3 2015	5,075	$170	$31.60	$28.82 - $34.92
Q2 2015	5,550	$211	$32.93	$29.54 - $35.95
Q1 2015	17,469	$591	$31.63	$29.59 - $33.22
Q4 2014	10,332	$378	$31.69	$27.30 - $33.99
Q3 2014	16,723	$558	$29.19	$27.47 - $31.20
Q2 2014	17,942	$561	$25.69	$23.72 - $27.88
Q1 2014	11,503	$344	$26.46	$25.10 - $28.61
Q4 2013	12,578	$376	$25.51	$23.10 - $27.14
Q3 2013	10,103	$269	$23.28	$21.63 - $25.20
Q2 2013	12,296	$326	$23.45	$21.31 - $25.25