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Hudson Bay Capital Management LP

Position in MKSI — Mks Inc

CIK 1393825 STAMFORD, CT

Position in MKSI

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$1,872,608
-$1,356,447 QoQ
Shares Held
4,210
-85.9% QoQ
Ownership
0.006%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#346
of 773 holders
Holding Since
Mar 2022
4 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MKSI Over Time

Shares Held

Position Value (USD)

Position in Scientific & Technical Instruments

Technology · as of Jun 30, 2026

Hudson Bay Capital Management LP holds $55,989,643 across 6 Scientific & Technical Instruments names. MKSI ranks #5 (3.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
5 MKSI
Mks Inc
This page
4,210 $1,872,608

All Filings in MKSI

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4 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,872,608 4,210
2023-06-30 $3,229,055 29,871
2022-06-30 $1,316,127 12,824
2022-03-31 $3,660,000 24,400