MKSI
MKS INC
Latest close $312.64 as of Aug 5, 2026
Schedule 13G/13D reports beneficial ownership at an observation date. “Accumulation” or “reduction” is inferred
from changes in reported shares when available; it is not a list of individual trades or exact execution prices.
Form 13F rows are quarter-end holding context only and do not establish an exact entry date.
Free access includes current parsed ownership filings, reported share changes, and ownership-percentage changes.
Significance scoring, disclosure-speed analysis, confirmation/divergence signals, and signal alerts require Investor or Pro.
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Beneficial ownership filing history
Showing 3 of 8 parsed filing(s) · 5 older require more history access| Holder | Observed / filed | Reported change | Shares | Ownership | Observation | Filing | Latest |
|---|---|---|---|---|---|---|---|
| JPMorgan Chase / Asset Management CIK0000019617 | Jun 30, 2026 observed Jul 16, 2026 filed · 16d Initial Schedule 13G | Initial Schedule 13G | 3.4M | 12.00% | $444.80 | $332.00 | $312.64 |
| Fidelity / FMR CIK0000315066 | Mar 31, 2026 observed May 6, 2026 filed · 36d Schedule 13G amendment | Earliest Schedule 13G amendment found | 2.2K | 12.00% | $229.81 | $293.77 | $312.64 |
| T. Rowe Price Associates CIK0000080255 | Dec 31, 2025 observed Feb 17, 2026 filed · 48d Schedule 13G amendment | Earliest Schedule 13G amendment found | 2.8M | 12.00% | $159.80 | $262.94 | $312.64 |