VALUE HOLDINGS MANAGEMENT CO. LLC MKSI — MKS INSTRUMENTS INC

Ownership history in VALUE HOLDINGS MANAGEMENT CO. LLC  ·  38 quarters on record

AI Ownership Summary

VALUE HOLDINGS MANAGEMENT CO. LLC reported MKS INSTRUMENTS INC (MKSI) in 38 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 9.13% in 2026 Q1. The latest visible filing shows MKSI at 9.13% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this MKSI ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was VALUE HOLDINGS MANAGEMENT CO. LLC's position in MKS INSTRUMENTS INC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

MKSI was reported at 9.13% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
9.13% in 2026 Q1

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

MKSI stock page VALUE HOLDINGS MANAGEMENT CO. LLC fund profile VALUE HOLDINGS MANAGEMENT CO. LLC full holdings
How VALUE HOLDINGS MANAGEMENT CO. LLC held MKSI — position size vs. price
% of Fund (quarterly)    MKSI price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 10 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 REDUCED — — — 245,050 -52,664 -17.7% 9.13% $56K 2026-05-11 $319.71
2025 Q4 UNCHANGED — — — 297,714 — 0% 7.96% $47.6M 2026-01-13 $193.09
2025 Q3 UNCHANGED — — — 297,714 — 0% 5.91% $36.8M 2025-10-09 $133.93
2025 Q2 UNCHANGED — — — 297,714 — 0% 5.22% $29.6M 2025-08-08 $98.92
2025 Q1 UNCHANGED — — — 297,714 — 0% 4.47% $23.9M 2025-05-13 $92.65
2024 Q4 UNCHANGED — — — 297,714 — 0% 5.44% $31.1M 2025-01-15 $112.99
2024 Q3 UNCHANGED — — — 297,714 — 0% 5.66% $32.4M 2024-11-12 $111.65
2024 Q2 UNCHANGED — — — 297,714 — 0% 7.11% $38.9M 2024-08-12 $108.16
2024 Q1 UNCHANGED — — — 297,714 — 0% 7.00% $39.6M 2024-05-10 $128.58
2023 Q4 UNCHANGED — — — 297,714 — 0% 6.19% $30.6M 2024-01-16 $101.29
28 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding MKSI

As of 2026 Q1 — sorted by position size

Fourier Capital Management Ltd 16.3% FengHe Fund Management Pte. Ltd. 3Y 14.49% Blue Grotto Capital, LLC 3Y 9.93% Daventry Group, LP 3Y 9.57% Spear Advisors LLC 6.1% LIGHT STREET CAPITAL MANAGEMENT, LLC 3Y 7Y 5.26% Aspex Management (HK) Ltd 3Y 5.13% HARBER ASSET MANAGEMENT LLC 3Y 7Y 5.03% Divisar Capital Management LLC 3Y 7Y 5.01% Park West Asset Management LLC 3Y 7Y 4.86%

FAQ About VALUE HOLDINGS MANAGEMENT CO. LLC and MKSI

These are the practical questions this page is built to answer before you even open the full history table.

How long has VALUE HOLDINGS MANAGEMENT CO. LLC reported owning MKSI?

VALUE HOLDINGS MANAGEMENT CO. LLC reported MKSI across 10 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported MKSI position in VALUE HOLDINGS MANAGEMENT CO. LLC's portfolio?

The largest reported portfolio weight for MKSI was 9.13% in 2026 Q1.

What is the latest reported MKSI position on this page?

The most recent filing on this page is 2026 Q1, when VALUE HOLDINGS MANAGEMENT CO. LLC reported 245,050 shares, equal to 9.13% of portfolio, with an estimated market value of $56K.

What does the chart on this MKSI ownership page compare?

The chart compares VALUE HOLDINGS MANAGEMENT CO. LLC's quarterly MKSI portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did VALUE HOLDINGS MANAGEMENT CO. LLC time their MKSI position?

Based on 13F filing dates vs. subsequent MKSI price moves, VALUE HOLDINGS MANAGEMENT CO. LLC correctly timed 5 out of 11 reported position changes (45%). The annualised alpha on MKSI relative to SPY over the holding period was +3.4%.

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