Mks Inc
$255.76-5.6%
+$12.6B
Net Activity
+56.52% total shares
Institutions Holding
773
Popularity Rank
#689
Avg Weight
0.35%
Total Value
$34.1B
Market Cap
$17.3B
773 institutions currently hold MKSI, with 460 net buyers and 305 net sellers this quarter.
Institutional Moves (Q2 2026)
Majority Increased
Based on recent trading activity
Net Selling Institutions
305
Net Buying Institutions
460
Top 5 by Value
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Across its top 20 institutional holders, MKSI's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 11/100, avg. turnover score 43/100).
MKSI ranks #689 out of 37501 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
MKSI is a top-conviction position for FengHe Fund Management Pte. Ltd. — at 24.5% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
The largest dollar stake in MKSI belongs to BlackRock, Inc., but the position matters far more to FengHe Fund Management Pte. Ltd., who has 24.5% of their own portfolio riding on it — a reminder that the biggest holder by size and the holder with the biggest bet aren't always the same fund.
BlackRock has added to its MKSI position for two straight quarters, increasing it by $2.1B to reach $3.1B today.
Franklin Resources Inc has trimmed its MKSI position for two straight quarters, cutting it by $128.3M while still holding $38.1M.
MKSI is down 5.6% today, but institutions show net buying of $12.6B this quarter — a divergence between today's price move and the underlying institutional flow.
MKSI posted net income of $440.0M over the trailing twelve months, and currently trades at a P/E of 39.4.
+$8.1B
Total Buy Value
$3.7B
Total Sell Value
460
Net Buyers
305
Net Sellers
MKSI
Q2 2026
Top 5 Institutional Movers
MKSI does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
| Action | Member | Trade Date | Amount |
|---|---|---|---|
| Sell (Full) | Thomas H Tuberville Senate | 2023-04-03 | $1K–$15K |
| Sell (Full) | Thomas H Tuberville Senate | 2023-04-03 | $1K–$15K |
6
Filings (90d)
$5.45M
Total Est. Value
17K shares
Planned Shares
| Filer | Filing Date | Est. Value |
|---|---|---|
| Mora Elizabeth | 2026-09-01 | $75K |
| Lee John Tseng-Chung | 2026-08-14 | $3.02M |
| Williams John Edward | 2026-08-03 | $132K |
| Schreiner James Alan | 2026-06-12 | $1.21M |
| Schreiner James Alan | 2026-06-10 | $248K |
| McCarthy Michelle M | 2026-06-05 | $767K |
Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。
0
Active 5%+ Holders
| Reporting Person | Type | Filing Date | % of Class |
|---|---|---|---|
| Victory Capital Management, Inc. | 13G/A | 2026-07-24 | 0.9% |
1
Filings (14d)
MKS Inc. (ticker: MKSI) announced its financial results for the quarter ended June 30, 2026, on August 5, 2026, with the full press release included as Exhibit 99.1 to this Form 8-K. The filing notes that neither the 8-K nor the exhibit are considered "filed" under Section 18 of the Exchange Act, so they don't carry the usual legal liability unless explicitly referenced in another filing.
View Full Filing (SEC EDGAR)55306N104, 55306n104
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Access MKSI's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/MKSICLI
npx alphasmo stocks get MKSI