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O'SHAUGHNESSY ASSET MANAGEMENT, LLC

Position in MKSI — Mks Inc

CIK 1423442 Stamford, CT

Position in MKSI

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$1,737,388
+$549,041 QoQ
Shares Held
3,906
-24.5% QoQ
Ownership
0.006%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#358
of 773 holders
Holding Since
Mar 2020
9 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

O'SHAUGHNESSY ASSET MANAGEMENT, LLC holds $34,326,985 across 13 Scientific & Technical Instruments names. MKSI ranks #6 (5.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
6 MKSI
Mks Inc
This page
3,906 $1,737,388

All Filings in MKSI

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9 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,737,388 3,906
2026-03-31 $1,188,347 5,171
2025-12-31 $386,236 2,417
2021-09-30 $4,527 30
2021-06-30 $5,694 32
2021-03-31 $1,483 8
2020-12-31 $1,203 8
2020-06-30 $226 2
2020-03-31 $895 11