NASDAQ · MKSI
Mks INC
Smart money pulse
What insiders and funds are doing
- account_balance425 funds bought, 293 sold in the quarter ended Jun 30, 2026. 220 were new holders.
- infoNo real insider sales in 12 months. Planned 10b5-1 sales and tax withholding are left out.
Pulse runs from −100 (everyone selling) to +100 (everyone buying). Half comes from insiders: real buyers vs. real sellers in the last 90 days (Form 4). Half comes from funds: funds that bought vs. funds that sold last quarter (13F). 13F is a snapshot of long positions on the last day of the quarter, filed up to 45 days later. It does not show short positions or trades since then. This is data, not advice.
Who owns it
779 funds report owning MKSI , up from 623
Last quarter
Who bought and who sold
Change in shares held, biggest funds first. Bars stop at ±100%.
Insider trades · last 12 months
Real buys and sales
Showing 0 real trades. Hidden: 1 shares withheld for tax, 2 option exercises. Those happen on a schedule and say little about what an insider thinks. Bigger dot means a bigger trade.
Showing every filing. Dashed circles are routine: grants, tax withholding, option exercises and planned sales.
Top holders
Biggest funds in MKSI
| Fund | Owns | Value | Change |
|---|---|---|---|
| California State Teachers Retirement System | — | $78.1K | +44581% |
| BlackRock, Inc. | — | $3.08B | +4% |
| Invesco Ltd. | — | $2.07B | +25% |
| Vanguard Portfolio Management LLC | — | $1.65B | +1% |
| Jpmorgan Chase & CO | — | $1.4B | New |
"Owns" is shares reported divided by shares outstanding.