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Roubaix Capital’s MKS Inc MKSI Stock Holding History

Roubaix Capital’s Portfolio MKSI Stock Details MKSI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-33,588
Closed -$4.16M – 57
2025
Q3 		$4.16M Sell
33,588
-19,938
-37% -$2.13M 1.94% 23
2025
Q2 		$5.32M Buy
53,526
+21,995
+70% +$1.79M 2.55% 14
2025
Q1 		$2.53M Sell
31,531
-22,614
-42% -$2.28M 1.32% 41
2024
Q4 		$5.65M Buy
54,145
+17,341
+47% +$1.87M 2.71% 9
2024
Q3 		$4M Buy
36,804
+7,527
+26% +$894K 2.2% 22
2024
Q2 		$3.82M Buy
29,277
+629
+2% +$79.4K 2.41% 15
2024
Q1 		$3.81M Sell
28,648
-25,623
-47% -$2.98M 2.41% 16
2023
Q4 		$5.58M Buy
54,271
+30,262
+126% +$2.46M 3.91% 4
2023
Q3 		$2.08M Sell
24,009
-398
-2% -$38.8K 1.53% 34
2023
Q2 		$2.64M Buy
+24,407
New +$2.23M 1.94% 29

Other funds holding MKSI

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $178B AUM 37.23% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Roubaix Capital's MKSI Position: Q4 2025 in Review

Roubaix Capital sold out of MKS Inc (MKSI) in Q4 2025, closing a stake of 33,588 shares — an estimated $4.16M sold.

Roubaix Capital first reported a position in MKSI in Q2 2023 and held it in 10 quarters. The position peaked at $5.65M in Q4 2024. 514 funds tracked by Wall St. Rank hold MKSI as of Q4 2025.

  • Roubaix Capital reported no remaining MKS Inc position as of Q4 2025 after selling out during the quarter.
  • Roubaix Capital sold 33,588 MKS Inc shares in Q4 2025, an estimated $4.16M.
  • Roubaix Capital first reported a position in MKS Inc in Q2 2023 and held it in 10 quarters.
  • Roubaix Capital's MKS Inc position peaked at $5.65M in Q4 2024.
  • 514 funds tracked by Wall St. Rank held MKS Inc as of Q4 2025.

Based on Roubaix Capital's 13F filing for Q4 2025, filed 9 Feb 2026.