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Ruane, Cunniff & Goldfarb’s Mine Safety MSA Stock Holding History

Ruane, Cunniff & Goldfarb’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 		$301M Sell
1,721,415
-54,867
-3% -$9.19M 4.68% 11
2026
Q1 		$291M Sell
1,776,282
-35,353
-2% -$6.46M 4.83% 9
2025
Q4 		$290M Buy
1,811,635
+106,349
+6% +$17.3M 4.53% 10
2025
Q3 		$293M Buy
1,705,286
+756,219
+80% +$131M 4.86% 10
2025
Q2 		$159M Buy
+949,067
New +$148M 2.73% 14

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
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
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Ruane, Cunniff & Goldfarb's MSA Position: Q2 2026 in Review

Ruane, Cunniff & Goldfarb reduced its Mine Safety (MSA) stake by 3.1% in Q2 2026, selling an estimated $9.19M and leaving 1,721,415 shares worth $301M. The position accounts for 4.68% of the portfolio, ranked #11.

Ruane, Cunniff & Goldfarb first reported a position in MSA in Q2 2025 and has held it in 5 quarters since. 456 funds tracked by Wall St. Rank hold MSA as of Q2 2026.

  • Ruane, Cunniff & Goldfarb held 1,721,415 shares of Mine Safety worth $301M as of Q2 2026.
  • Ruane, Cunniff & Goldfarb sold 54,867 Mine Safety shares in Q2 2026, an estimated $9.19M.
  • Mine Safety made up 4.68% of Ruane, Cunniff & Goldfarb's portfolio in Q2 2026, its #11 holding.
  • Ruane, Cunniff & Goldfarb first reported a position in Mine Safety in Q2 2025 and has held it in 5 quarters since.
  • 456 funds tracked by Wall St. Rank held Mine Safety as of Q2 2026.

Based on Ruane, Cunniff & Goldfarb's 13F filing for Q2 2026, filed 14 Aug 2026.