Calamos Advisors
MKSI icon

Calamos Advisors’s MKS Inc MKSI Stock Holding History

Calamos Advisors’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
Q2 		– Sell
-30,500
Closed -$2.44M – 963
2025
Q1 		$2.44M Hold
30,500
– – 0.01% 576
2024
Q4 		$3.18M Sell
30,500
-30,000
-50% -$3.24M 0.01% 560
2024
Q3 		$6.58M Buy
+60,500
New +$7.19M 0.03% 495

Other funds holding MKSI

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $156B AUM 27.51% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return

Calamos Advisors's MKSI Position: Q2 2025 in Review

Calamos Advisors sold out of MKS Inc (MKSI) in Q2 2025, closing a stake of 30,500 shares — an estimated $2.44M sold.

Calamos Advisors first reported a position in MKSI in Q3 2024 and held it in 3 quarters. The position peaked at $6.58M in Q3 2024. 394 funds tracked by Wall St. Rank hold MKSI as of Q2 2025.

  • Calamos Advisors reported no remaining MKS Inc position as of Q2 2025 after selling out during the quarter.
  • Calamos Advisors sold 30,500 MKS Inc shares in Q2 2025, an estimated $2.44M.
  • Calamos Advisors first reported a position in MKS Inc in Q3 2024 and held it in 3 quarters.
  • Calamos Advisors's MKS Inc position peaked at $6.58M in Q3 2024.
  • 394 funds tracked by Wall St. Rank held MKS Inc as of Q2 2025.

Based on Calamos Advisors's 13F filing for Q2 2025, filed 8 Aug 2025.