Position in MKSI
as of Jun 30, 2026
· filed Aug 6, 2026
Position Value
$3,909,792
+$1,889,763 QoQ
Shares Held
8,790
0.0% QoQ
Ownership
0.013%
of shares outstanding
% of Portfolio
0.44%
of 13F equity value
Holder Rank
#276
of 773 holders
Holding Since
Jun 2025
5 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, 2026Old West Investment Management, LLC holds $15,867,770 across 4 Scientific & Technical Instruments names. MKSI ranks #3 (24.6% of the industry book) .
All Filings in MKSI
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5 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $3,909,792 | 8,790 | Shares | Sole | 2026-08-06 | |
| 2026-03-31 | $2,020,029 | 8,790 | Shares | Sole | 2026-05-12 | |
| 2025-12-31 | $2,612,730 | 16,350 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $1,961,630 | 15,849 | Shares | Sole | 2025-11-05 | |
| 2025-06-30 | $675,051 | 6,794 | Shares | Sole | 2025-08-08 | |
| No filing history on record for this holder in this stock. | ||||||