MKSI
MKS INCData as of 2026 Q2 (06-30) · 13F snapshot
Summary
MKS INC (MKSI) is held as common stock by 7 tracked hedge-fund managers, with a combined reported value of ~$2.16B; the largest are Steven Cohen, Alex Sacerdote, Ken Griffin. 4 tracked managers also disclosed PUT or CALL positions, reported separately below. This quarter: 1 added, 6 trimmed, 1 closed. 8 public STOCK Act / OGE trade disclosures are on record. Data as of 2026 Q2, from public SEC 13F filings, delayed up to ~45 days.
Attention · MediumThis quarter · Cooling
Common-stock holders74 also report options
Congress trades8
Price$266.02vs quarter-end-40.19%
Sectors0
This quarter's moves
Top holderNew0
Added1
Trimmed / sold7
Steven CohenCommon-stock positions
PUT and CALL disclosures are excluded from these holder counts and values.
Steven CohenAdd
Value $888.20M1.4% of portfolio1,996,8432026 Q2
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Steven Cohen | $888.20M | 1.4% | Add |
PUT / CALL disclosures
Reported separately: 13F option values are not common-stock ownership and do not reveal the full strategy or economic exposure.
Value $38.83M— of portfolio87,3002026 Q2
Value $29.05M— of portfolio65,3002026 Q2
Value $1.20M— of portfolio2,7002026 Q2
Value $800.6K— of portfolio1,8002026 Q2
Value $400.3K— of portfolio9002026 Q2
Value $355.8K— of portfolio8002026 Q2
Value $266.9K— of portfolio6002026 Q2
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Ken GriffinCALL | $38.83M | — | — |
| Ken GriffinPUT | $29.05M | — | — |
| Steven CohenCALL | $1.20M | — | — |
| Steven CohenPUT | $800.6K | — | — |
| Izzy EnglanderCALL | $400.3K | — | — |
| Paul Tudor JonesPUT | $355.8K | — | — |
| Paul Tudor JonesCALL | $266.9K | — | — |
Public SEC 13F filings may appear up to 45 days after quarter-end; STOCK Act / OGE trade filings are generally due within 45 days but may be late. Partial data only — research, not investment advice.