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Harvey Partners’s MKS Inc MKSI Stock Holding History

Harvey Partners’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
2026
Q2 		$62.7M Sell
141,066
-102,330
-42% -$32M 4.3% 3
2026
Q1 		$55.9M Sell
243,396
-45,801
-16% -$10.4M 4.45% 3
2025
Q4 		$46.2M Buy
289,197
+197
+0.1% +$29.2K 4.1% 3
2025
Q3 		$35.8M Buy
289,000
+19,401
+7% +$2.07M 3.18% 10
2025
Q2 		$26.8M Buy
269,599
+8,599
+3% +$699K 2.63% 15
2025
Q1 		$20.9M Buy
261,000
+71,500
+38% +$7.22M 2.44% 17
2024
Q4 		$19.8M Buy
189,500
+19,500
+11% +$2.1M 2.2% 19
2024
Q3 		$18.5M Buy
170,000
+24,500
+17% +$2.91M 2.1% 22
2024
Q2 		$19M Sell
145,500
-9,500
-6% -$1.2M 2.28% 21
2024
Q1 		$20.6M Buy
155,000
+5,500
+4% +$639K 2.18% 21
2023
Q4 		$15.4M Sell
149,500
-15,000
-9% -$1.22M 1.75% 26
2023
Q3 		$14.2M Buy
164,500
+9,500
+6% +$926K 1.8% 27
2023
Q2 		$16.8M Buy
+155,000
New +$14.2M 2.05% 23

Other funds holding MKSI

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
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
AMH
Aspex Management (HK) Central, Hong Kong $8.89B AUM 39.91% 1-Year Est. Return

Harvey Partners's MKSI Position: Q2 2026 in Review

Harvey Partners reduced its MKS Inc (MKSI) stake by 42% in Q2 2026, selling an estimated $32M and leaving 141,066 shares worth $62.7M. The position accounts for 4.3% of the portfolio, ranked #3.

Harvey Partners first reported a position in MKSI in Q2 2023 and has held it in 13 quarters since. 775 funds tracked by Wall St. Rank hold MKSI as of Q2 2026.

  • Harvey Partners held 141,066 shares of MKS Inc worth $62.7M as of Q2 2026.
  • Harvey Partners sold 102,330 MKS Inc shares in Q2 2026, an estimated $32M.
  • MKS Inc made up 4.3% of Harvey Partners's portfolio in Q2 2026, its #3 holding.
  • Harvey Partners first reported a position in MKS Inc in Q2 2023 and has held it in 13 quarters since.
  • 775 funds tracked by Wall St. Rank held MKS Inc as of Q2 2026.

Based on Harvey Partners's 13F filing for Q2 2026, filed 14 Aug 2026.