JO
MKSI icon

John Overdeck’s MKS Inc MKSI Stock Holding History

John Overdeck’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 		$534K Buy
+1,200
New +$376K ﹤0.01% 4114
2022
Q1 		– Sell
-3,800
Closed -$662K – 3688
2021
Q4 		$662K Sell
3,800
-1,800
-32% -$281K ﹤0.01% 2965
2021
Q3 		$845K Buy
+5,600
New +$860K ﹤0.01% 2765

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

John Overdeck's MKSI Position: Q2 2026 in Review

John Overdeck reduced its MKS Inc (MKSI) stake by 49% in Q2 2026, selling an estimated $42.3M and leaving 143,365 shares worth $63.8M. The position accounts for 0.05% of the portfolio, ranked #457.

John Overdeck first reported a position in MKSI in Q1 2014 and has held it in 27 quarters since. The position peaked at $64M in Q1 2026. 770 funds tracked by Wall St. Rank hold MKSI as of Q2 2026.

  • John Overdeck held 143,365 shares of MKS Inc worth $63.8M as of Q2 2026.
  • John Overdeck sold 135,322 MKS Inc shares in Q2 2026, an estimated $42.3M.
  • MKS Inc made up 0.05% of John Overdeck's portfolio in Q2 2026, its #457 holding.
  • John Overdeck first reported a position in MKS Inc in Q1 2014 and has held it in 27 quarters since.
  • John Overdeck's MKS Inc position peaked at $64M in Q1 2026.
  • 770 funds tracked by Wall St. Rank held MKS Inc as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.