MKS Inc
MKSI
434 hedge funds and large institutions have $8.91B invested in MKS Inc in 2025 Q3 according to their latest regulatory filings, with 80 funds opening new positions, 146 increasing their positions, 141 reducing their positions, and 38 closing their positions.
472% more call options, than puts
Call options by funds: $254M | Put options by funds: $44.3M
111% more first-time investments, than exits
New positions opened: 80 | Existing positions closed: 38
100% more funds holding in top 10
Funds holding in top 10: 4 → 8 (+4)
20% more capital invested
Capital invested by funds: $7.42B → $8.91B (+$1.5B)
10% more funds holding
Funds holding: 395 → 434 (+39)
4% more repeat investments, than reductions
Existing positions increased: 146 | Existing positions reduced: 141
3.45% less ownership
Funds ownership: 110.67% → 107.22% (-3.4%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Franklin Resources
San Mateo,
California
|
+$120M |
| 2 |
Point72 Asset Management
Stamford,
Connecticut
|
+$108M |
| 3 |
Invesco
Atlanta,
Georgia
|
+$47.6M |
| 4 |
Millennium Management
New York
|
+$47.1M |
| 5 |
Nomura Holdings
Tokyo,
Japan
|
+$34.6M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
-$127M |
| 2 |
Rafferty Asset Management
New York
|
-$87.2M |
| 3 |
Barclays
London,
United Kingdom
|
-$74.6M |
| 4 |
Bank of America
Charlotte,
North Carolina
|
-$59.1M |
| 5 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$52.9M |
MKSI Hedge Fund Activity: Q3 2025 in Review
434 of the 7,639 institutional investors tracked by Wall St. Rank reported a position in MKS Inc (MKSI) for Q3 2025, worth a combined $8.91B — up 20% from $7.42B a quarter earlier.
Buyers outnumbered sellers: 80 funds opened new MKSI positions and 38 closed out — a net gain of 42 holders — while 146 added to existing stakes and 141 trimmed.
The largest buyer was Franklin Resources, adding an estimated $120M. The largest seller was BlackRock, cutting an estimated $127M.
- 434 institutional investors held MKS Inc (MKSI) as of Q3 2025, up from 395 in Q2 2025.
- Funds reported $8.91B of MKS Inc stock for Q3 2025, up 20% quarter-over-quarter.
- 80 funds opened new MKS Inc positions in Q3 2025 and 38 closed out, a net change of +42 holders.
- The largest MKS Inc buyer in Q3 2025 was Franklin Resources, an estimated $120M added.
- The largest MKS Inc seller in Q3 2025 was BlackRock, an estimated $127M sold.
Based on aggregated 13F filings for Q3 2025.