Mariner
MKSI icon

Mariner’s MKS Inc MKSI Stock Holding History

Mariner’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
Q1 		$4.88M Buy
21,256
+11,768
+124% +$2.66M 0.01% 1064
2025
Q4 		$1.52M Sell
9,488
-120
-1% -$17.8K ﹤0.01% 1664
2025
Q3 		$1.19M Buy
9,608
+57
+0.6% +$6.08K ﹤0.01% 1770
2025
Q2 		$949K Buy
9,551
+4,523
+90% +$368K ﹤0.01% 1833
2025
Q1 		$403K Buy
5,028
+2,232
+80% +$225K ﹤0.01% 2376
2024
Q4 		$292K Sell
2,796
-3,013
-52% -$325K ﹤0.01% 2647
2024
Q3 		$632K Buy
5,809
+122
+2% +$14.5K ﹤0.01% 1950
2024
Q2 		$743K Buy
5,687
+3,535
+164% +$446K ﹤0.01% 1733
2024
Q1 		$286K Buy
2,152
+154
+8% +$17.9K ﹤0.01% 2473
2023
Q4 		$206K Sell
1,998
-1,114
-36% -$90.5K ﹤0.01% 2677
2023
Q3 		$269K Sell
3,112
-1,535
-33% -$150K ﹤0.01% 2254
2023
Q2 		$502K Sell
4,647
-62
-1% -$5.67K ﹤0.01% 1743
2023
Q1 		$417K Buy
4,709
+1,932
+70% +$184K ﹤0.01% 1800
2022
Q4 		$235K Sell
2,777
-4,027
-59% -$323K ﹤0.01% 2227
2022
Q3 		$563K Buy
+6,804
New +$700K ﹤0.01% 1349
2015
Q4 		– Sell
-7,079
Closed -$237K – 527
2015
Q3 		$237K Sell
7,079
-2,689
-28% -$93.5K 0.01% 442
2015
Q2 		$371K Buy
+9,768
New +$356K 0.02% 386

Other funds holding MKSI

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Mariner's MKSI Position: Q1 2026 in Review

Mariner increased its MKS Inc (MKSI) stake by 124% in Q1 2026, buying an estimated $2.66M and bringing the position to 21,256 shares worth $4.88M. The position accounts for 0.01% of the portfolio, ranked #1064.

Mariner first reported a position in MKSI in Q2 2015 and has held it in 17 quarters since. 615 funds tracked by Wall St. Rank hold MKSI as of Q1 2026.

  • Mariner held 21,256 shares of MKS Inc worth $4.88M as of Q1 2026.
  • Mariner bought 11,768 MKS Inc shares in Q1 2026, an estimated $2.66M.
  • MKS Inc made up 0.01% of Mariner's portfolio in Q1 2026, its #1064 holding.
  • Mariner first reported a position in MKS Inc in Q2 2015 and has held it in 17 quarters since.
  • 615 funds tracked by Wall St. Rank held MKS Inc as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.