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Aufman Associates’s Minerals Technologies MTX Stock Holding History

Aufman Associates’s Portfolio MTX Stock Details MTX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$2.66M Sell
36,011
-2,000
-5% -$151K 1.06% 12
2026
Q1 		$2.7M Hold
38,011
– – 1.32% 11
2025
Q4 		$2.32M Hold
38,011
– – 1.19% 10
2025
Q3 		$2.36M Hold
38,011
– – 1.33% 10
2025
Q2 		$2.09M Buy
38,011
+1,007
+3% +$56.8K 1.29% 10
2025
Q1 		$2.35M Buy
37,004
+1,007
+3% +$71.8K 1.62% 9
2024
Q4 		$2.74M Sell
35,997
-12,500
-26% -$984K 1.85% 9
2024
Q3 		$3.75M Buy
48,497
+13,087
+37% +$1.01M 2.41% 7
2024
Q2 		$2.94M Sell
35,410
-20,000
-36% -$1.58M 2.1% 9
2024
Q1 		$4.17M Sell
55,410
-3,792
-6% -$266K 2.94% 6
2023
Q4 		$4.22M Sell
59,202
-14,985
-20% -$888K 3.19% 6
2023
Q3 		$4.06M Buy
74,187
+65,830
+788% +$3.76M 3.41% 6
2023
Q2 		$482K Buy
8,357
+8
+0.1% +$466 0.4% 23
2023
Q1 		$504K Buy
8,349
+7
+0.1% +$436 0.43% 21
2022
Q4 		$507K Buy
8,342
+7
+0.1% +$397 0.47% 17
2022
Q3 		$412K Buy
8,335
+7
+0.1% +$426 0.43% 19
2022
Q2 		$511K Buy
8,328
+6
+0.1% +$383 0.49% 20
2022
Q1 		$551K Buy
8,322
+6
+0.1% +$415 0.43% 21
2021
Q4 		$608K Buy
8,316
+5
+0.1% +$359 0.45% 20
2021
Q3 		$580K Buy
+8,311
New +$634K 0.48% 20
2021
Q1 		– Sell
-72,180
Closed -$4.48M – 46
2020
Q4 		$4.48M Buy
72,180
+3,443
+5% +$204K 4.02% 5
2020
Q3 		$3.51M Hold
68,737
– – 3.77% 5
2020
Q2 		$3.23M Hold
68,737
– – 3.66% 5
2020
Q1 		$2.49M Buy
+68,737
New +$3.33M 3.44% 5

Other funds holding MTX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
NAMI
Nomura Asset Management International Philadelphia, Pennsylvania $66.6B 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
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return
Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $83.9B AUM 60.43% 1-Year Est. Return

Aufman Associates's MTX Position: Q2 2026 in Review

Aufman Associates reduced its Minerals Technologies (MTX) stake by 5.3% in Q2 2026, selling an estimated $151K and leaving 36,011 shares worth $2.66M. The position accounts for 1.06% of the portfolio, ranked #12.

Aufman Associates first reported a position in MTX in Q1 2020 and has held it in 24 quarters since. The position peaked at $4.48M in Q4 2020. 293 funds tracked by Wall St. Rank hold MTX as of Q2 2026.

  • Aufman Associates held 36,011 shares of Minerals Technologies worth $2.66M as of Q2 2026.
  • Aufman Associates sold 2,000 Minerals Technologies shares in Q2 2026, an estimated $151K.
  • Minerals Technologies made up 1.06% of Aufman Associates's portfolio in Q2 2026, its #12 holding.
  • Aufman Associates first reported a position in Minerals Technologies in Q1 2020 and has held it in 24 quarters since.
  • Aufman Associates's Minerals Technologies position peaked at $4.48M in Q4 2020.
  • 293 funds tracked by Wall St. Rank held Minerals Technologies as of Q2 2026.

Based on Aufman Associates's 13F filing for Q2 2026, filed 12 Aug 2026.