Fund Insights
Common Fund Bets
See what stocks and ETFs funds are collectively bullish/bearish on
Largest Fund Trades
Explore the largest stock and ETF buys and sells made by funds
High Conviction Trades
Discover high conviction trades that caused a significant change in a fund's stake in a stock
Fund Manager Portfolios
Gain insights from the world’s largest funds and super investors
WSR Indexes
Fund Manager Index
Stock index based on fund manager consensus updated each quarter
Search
Sign in
Sign up
CIM
Corbyn Investment Management’s
Minerals Technologies
MTX
Stock Holding History
Corbyn Investment Management’s Portfolio
MTX Stock Details
MTX Fund Activity
Bought
Maintained
Sold
Shares
Quarter
Market Value
Status
Shares
Change in
Stake
Trade Value
Portfolio Weight
Portfolio Position
2026
Q1
$2.16M
Hold
30,438
–
–
0.72%
41
2025
Q4
$1.86M
Hold
30,438
–
–
0.54%
46
2025
Q3
$1.89M
Hold
30,438
–
–
0.55%
45
2025
Q2
$1.68M
Hold
30,438
–
–
0.56%
42
2025
Q1
$1.93M
Hold
30,438
–
–
0.72%
38
2024
Q4
$2.32M
Hold
30,438
–
–
0.83%
39
2024
Q3
$2.35M
Buy
30,438
+2,710
+10%
+$209K
0.9%
35
2024
Q2
$2.31M
Hold
27,728
–
–
0.95%
32
2024
Q1
$2.09M
Sell
27,728
-1,810
-6%
-$127K
0.92%
31
2023
Q4
$2.11M
Buy
29,538
+2,041
+7%
+$121K
0.99%
33
2023
Q3
$1.51M
Buy
+27,497
New
+$1.57M
0.77%
34
Other funds holding MTX
BlackRock
New York
$5.72T AUM
30.48%
1-Year Est. Return
Fidelity Investments
Boston, Massachusetts
$1.9T AUM
41.92%
1-Year Est. Return
Dimensional Fund Advisors
Austin, Texas
$481B AUM
30.42%
1-Year Est. Return
VPM
Vanguard Portfolio Management
Malvern, Pennsylvania
$1.91T AUM
NAMI
Nomura Asset Management International
Philadelphia, Pennsylvania
$58.4B AUM
VCM
Vanguard Capital Management
Malvern, Pennsylvania
$4.04T AUM
State Street
Boston, Massachusetts
$2.9T AUM
29.55%
1-Year Est. Return
American Century Companies
Kansas City, Missouri
$194B AUM
35%
1-Year Est. Return
Geode Capital Management
Boston, Massachusetts
$1.61T AUM
30.72%
1-Year Est. Return
BIP
Brandes Investment Partners
La Jolla, California
$14.1B AUM
25.52%
1-Year Est. Return
Sign up
Sign in
Fund Insights
Common Fund Bets
See what stocks and ETFs funds are collectively bullish/bearish on
Largest Fund Trades
Explore the largest stock and ETF buys and sells made by funds
High Conviction Trades
Discover high conviction trades that caused a significant change in a fund's stake in a stock
Fund Manager Portfolios
Gain insights from the world’s largest funds and super investors
WSR Indexes
Fund Manager Index
Stock index based on fund manager consensus updated each quarter
Theme
Close