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Mine Safety

405 hedge funds and large institutions have $5.98B invested in Mine Safety in 2025 Q3 according to their latest regulatory filings, with 47 funds opening new positions, 128 increasing their positions, 155 reducing their positions, and 27 closing their positions.

New
Increased
Maintained
Reduced
Closed

74% more first-time investments, than exits

New positions opened: 47 | Existing positions closed: 27

4% more funds holding

Funds holding: 390405 (+15)

0% less capital invested

Capital invested by funds: $6B → $5.98B (-$18.7M)

2.37% less ownership

Funds ownership: 91.81%89.45% (-2.4%)

14% less funds holding in top 10

Funds holding in top 10: 76 (-1)

17% less repeat investments, than reductions

Existing positions increased: 128 | Existing positions reduced: 155

58% less call options, than puts

Call options by funds: $1.01M | Put options by funds: $2.41M

Holders
405
Holders Change
+15
Holders Change %
+3.85%
% of All Funds
5.32%
Holding in Top 10
6
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-14.29%
% of All Funds
0.08%
New
47
Increased
128
Reduced
155
Closed
27
Calls
$1.01M
Puts
$2.41M
Net Calls
-$1.39M
Net Calls Change
-$959K
Name Holding Trade Value Shares
Change
Change in
Stake
Kayne Anderson Rudnick Investment Management
401
Kayne Anderson Rudnick Investment Management
California
$172
TFA
402
Transamerica Financial Advisors
Florida
$172 +$173 +1 New
Norges Bank
403
Norges Bank
Norway
-$52.2M -311,390 Closed
Voloridge Investment Management
404
Voloridge Investment Management
Florida
-$6.67M -39,813 Closed
Qube Research & Technologies (QRT)
405
Qube Research & Technologies (QRT)
United Kingdom
-$3.36M -20,057 Closed
VA
406
Vident Advisory
Georgia
-$1.61M -9,619 Closed
OAM
407
OP Asset Management
-$1.42M -8,461 Closed
Balyasny Asset Management
408
Balyasny Asset Management
Illinois
-$1.42M -8,448 Closed
Squarepoint
409
Squarepoint
New York
-$1.24M -7,418 Closed
VRS
410
Virginia Retirement Systems
Virginia
-$1.19M -7,093 Closed
MAM
411
Martingale Asset Management
Massachusetts
-$668K -3,987 Closed
D.E. Shaw & Co
412
D.E. Shaw & Co
New York
-$643K -3,841 Closed
Renaissance Technologies
413
Renaissance Technologies
New York
-$637K -3,800 Closed
Arrowstreet Capital
414
Arrowstreet Capital
Massachusetts
-$633K -3,776 Closed
AWM
415
Apollon Wealth Management
South Carolina
-$531K -3,171 Closed
MK
416
MASTERINVEST Kapitalanlage
-$506K -3,019 Closed
ET
417
Entropy Technologies
New York
-$418K -2,496 Closed
Mariner
418
Mariner
Kansas
-$369K -2,201 Closed
AP
419
Advisors Preferred
Maryland
-$376K -2,193 Closed
WG
420
Winton Group
United Kingdom
-$311K -1,858 Closed
Capstone Investment Advisors
421
Capstone Investment Advisors
New York
-$293K -1,750 Closed
EF
422
Empowered Funds
Pennsylvania
-$205K -1,223 Closed
BIG
423
Brooklyn Investment Group
New York
-$18.8K -112 Closed
TSMHT
424
Thurston Springer Miller Herd & Titak
Indiana
-$11.6K -69 Closed
GWM
425
Geneos Wealth Management
Colorado
-$8.04K -48 Closed

MSA Hedge Fund Activity: Q3 2025 in Review

405 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Mine Safety (MSA) for Q3 2025, worth a combined $5.98B — down 0.31% from $6B a quarter earlier.

Buyers outnumbered sellers: 47 funds opened new MSA positions and 27 closed out — a net gain of 20 holders — while 128 added to existing stakes and 155 trimmed.

The largest buyer was Ruane, Cunniff & Goldfarb, adding an estimated $131M. The largest seller was T. Rowe Price Associates, cutting an estimated $130M.

  • 405 institutional investors held Mine Safety (MSA) as of Q3 2025, up from 390 in Q2 2025.
  • Funds reported $5.98B of Mine Safety stock for Q3 2025, down 0.31% quarter-over-quarter.
  • 47 funds opened new Mine Safety positions in Q3 2025 and 27 closed out, a net change of +20 holders.
  • The largest Mine Safety buyer in Q3 2025 was Ruane, Cunniff & Goldfarb, an estimated $131M added.
  • The largest Mine Safety seller in Q3 2025 was T. Rowe Price Associates, an estimated $130M sold.

Based on aggregated 13F filings for Q3 2025.