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STATE OF WISCONSIN INVESTMENT BOARD

Position in MKSI — Mks Inc

CIK 854157 MADISON, WI

Position in MKSI

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$11,255,634
+$3,966,198 QoQ
Shares Held
48,978
+7.4% QoQ
Ownership
0.073%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
24 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in MKSI Over Time

Shares Held

Position Value (USD)

Position in Scientific & Technical Instruments

Technology · as of Mar 31, 2026

STATE OF WISCONSIN INVESTMENT BOARD holds $163,017,223 across 16 Scientific & Technical Instruments names. MKSI ranks #5 (6.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
5 MKSI
Mks Inc
This page
48,978 $11,255,634

All Filings in MKSI

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24 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $11,255,634 48,978
2025-12-31 $7,289,436 45,616
2025-09-30 $5,145,366 41,572
2025-06-30 $4,591,624 46,212
2025-03-31 $4,717,709 58,861
2024-12-31 $5,148,514 49,320
2024-09-30 $6,765,892 62,238
2024-06-30 $7,557,317 57,875
2024-03-31 $6,555,836 49,292
2023-12-31 $3,850,526 37,431
2023-09-30 $5,334,931 61,647
2023-06-30 $7,364,853 68,130
2023-03-31 $6,577,819 74,225
2022-12-31 $6,859,740 80,960
2022-09-30 $7,171,086 86,775
2022-06-30 $9,116,520 88,829
2022-03-31 $11,842,350 78,949
2021-09-30 $11,081,321 73,430
2021-06-30 $13,008,678 73,103
2021-03-31 $16,135,990 87,024
2020-12-31 $13,995,912 93,027
2020-09-30 $12,617,921 115,517
2020-06-30 $16,122,771 142,377
2020-03-31 $12,464,049 153,027