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Whale Rock Capital Management LLC

Position in MKSI — Mks Inc

CIK 1387322 Boston, MA

Position in MKSI

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$565,506,710
+$265,208,468 QoQ
Shares Held
1,271,373
-2.7% QoQ
Ownership
1.88%
of shares outstanding
% of Portfolio
4.54%
of 13F equity value
Holder Rank
#15
of 773 holders
Holding Since
Mar 2026
2 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

Whale Rock Capital Management LLC holds $1,047,562,856 across 2 Scientific & Technical Instruments names. MKSI ranks #1 (54.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 MKSI
Mks Inc
This page
1,271,373 $565,506,710

All Filings in MKSI

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2 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $565,506,710 1,271,373
2026-03-31 $300,298,242 1,306,724