Mariner
MSA icon

Mariner’s Mine Safety MSA Stock Holding History

Mariner’s Portfolio MSA Stock Details MSA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$1.51M Buy
8,658
+5,301
+158% +$888K ﹤0.01% 1661
2026
Q1 		$550K Buy
+3,357
New +$614K ﹤0.01% 2427
2025
Q3 		– Sell
-2,201
Closed -$369K – 3689
2025
Q2 		$369K Sell
2,201
-142
-6% -$22.2K ﹤0.01% 2558
2025
Q1 		$344K Sell
2,343
-288
-11% -$45.9K ﹤0.01% 2499
2024
Q4 		$436K Buy
2,631
+471
+22% +$80.7K ﹤0.01% 2297
2024
Q3 		$383K Sell
2,160
-22
-1% -$4K ﹤0.01% 2364
2024
Q2 		$410K Buy
2,182
+48
+2% +$8.92K ﹤0.01% 2204
2024
Q1 		$413K Buy
2,134
+458
+27% +$80.5K ﹤0.01% 2180
2023
Q4 		$283K Buy
1,676
+226
+16% +$36.8K ﹤0.01% 2401
2023
Q3 		$229K Sell
1,450
-211
-13% -$36.2K ﹤0.01% 2399
2023
Q2 		$289K Buy
+1,661
New +$238K ﹤0.01% 2150
2023
Q1 		– Sell
-1,656
Closed -$239K – 2845
2022
Q4 		$239K Buy
+1,656
New +$217K ﹤0.01% 2215

Other funds holding MSA

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
RCG
Ruane, Cunniff & Goldfarb New York $6.43B AUM 18.44% 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
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
CB
Cooke & Bieler Philadelphia, Pennsylvania $8.65B AUM 9.66% 1-Year Est. Return
FMI
Fiduciary Management Inc Milwaukee, Wisconsin $7.03B AUM 11.68% 1-Year Est. Return
MGP
M&G plc London, United Kingdom $20.1B AUM 16.62% 1-Year Est. Return

Mariner's MSA Position: Q2 2026 in Review

Mariner increased its Mine Safety (MSA) stake by 158% in Q2 2026, buying an estimated $888K and bringing the position to 8,658 shares worth $1.51M. The position accounts for ﹤0.01% of the portfolio, ranked #1661.

Mariner first reported a position in MSA in Q4 2022 and has held it in 12 quarters since. 458 funds tracked by Wall St. Rank hold MSA as of Q2 2026.

  • Mariner held 8,658 shares of Mine Safety worth $1.51M as of Q2 2026.
  • Mariner bought 5,301 Mine Safety shares in Q2 2026, an estimated $888K.
  • Mine Safety made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #1661 holding.
  • Mariner first reported a position in Mine Safety in Q4 2022 and has held it in 12 quarters since.
  • 458 funds tracked by Wall St. Rank held Mine Safety as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.