MINERALS TECHNOLOGIES INC

Ticker: MTX CUSIP: 603158106 Class: Common Stock

GW&K Investment Management, LLC's Holding History (CIK: 0001082917)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 327,550 Value ($000) $20 Avg Close $59.09 Range $53.85 - $63.32

Q3 2025

Shares 454,136 Value ($000) $28 Avg Close $60.71 Range $54.60 - $66.01

Q2 2025

Shares 467,143 Value ($000) $26 Avg Close $56.00 Range $49.17 - $62.74

Q1 2025

Shares 406,015 Value ($000) $26 Avg Close $70.76 Range $62.32 - $77.53

Q4 2024

Shares 419,613 Value ($000) $32 Avg Close $77.99 Range $73.72 - $85.72

Q3 2024

Shares 430,102 Value ($000) $33 Avg Close $76.19 Range $68.62 - $89.24

Q2 2024

Shares 449,626 Value ($000) $37 Avg Close $78.11 Range $68.96 - $86.44

Q1 2024

Shares 566,983 Value ($000) $43 Avg Close $69.23 Range $63.86 - $75.81

Q4 2023

Shares 578,731 Value ($000) $41 Avg Close $58.40 Range $47.83 - $71.07

Q3 2023

Shares 618,254 Value ($000) $34 Avg Close $56.13 Range $52.34 - $61.66

Q2 2023

Shares 611,066 Value ($000) $35 Avg Close $57.19 Range $53.13 - $60.84

Q1 2023

Shares 617,741 Value ($000) $37 Avg Close $61.10 Range $54.37 - $72.20

Q4 2022

Shares 610,386 Value ($000) $37 Avg Close $55.60 Range $48.74 - $62.46

Q3 2022

Shares 623,539 Value ($000) $30,809 Avg Close $59.58 Range $48.42 - $66.30

Q2 2022

Shares 677,149 Value ($000) $41,536 Avg Close $62.57 Range $56.35 - $67.72

Q1 2022

Shares 646,701 Value ($000) $42,780 Avg Close $67.70 Range $60.93 - $74.01

Q4 2021

Shares 651,258 Value ($000) $47,640 Avg Close $70.30 Range $63.19 - $77.32

Q3 2021

Shares 503,418 Value ($000) $35,158 Avg Close $74.61 Range $66.08 - $79.98

Q2 2021

Shares 515,384 Value ($000) $40,545 Avg Close $78.96 Range $73.23 - $86.58

Q1 2021

Shares 500,809 Value ($000) $37,721 Avg Close $69.02 Range $59.59 - $79.48

Q4 2020

Shares 507,144 Value ($000) $31,504 Avg Close $57.87 Range $48.80 - $64.63

Q3 2020

Shares 212,817 Value ($000) $10,874 Avg Close $48.19 Range $40.96 - $52.66

Q2 2020

Shares 4,670 Value ($000) $219 Avg Close $42.61 Range $30.45 - $54.67

Q1 2020

Shares 4,705 Value ($000) $171 Avg Close $47.10 Range $26.54 - $57.53

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	327,550	$20	$59.09	$53.85 - $63.32
Q3 2025	454,136	$28	$60.71	$54.60 - $66.01
Q2 2025	467,143	$26	$56.00	$49.17 - $62.74
Q1 2025	406,015	$26	$70.76	$62.32 - $77.53
Q4 2024	419,613	$32	$77.99	$73.72 - $85.72
Q3 2024	430,102	$33	$76.19	$68.62 - $89.24
Q2 2024	449,626	$37	$78.11	$68.96 - $86.44
Q1 2024	566,983	$43	$69.23	$63.86 - $75.81
Q4 2023	578,731	$41	$58.40	$47.83 - $71.07
Q3 2023	618,254	$34	$56.13	$52.34 - $61.66
Q2 2023	611,066	$35	$57.19	$53.13 - $60.84
Q1 2023	617,741	$37	$61.10	$54.37 - $72.20
Q4 2022	610,386	$37	$55.60	$48.74 - $62.46
Q3 2022	623,539	$30,809	$59.58	$48.42 - $66.30
Q2 2022	677,149	$41,536	$62.57	$56.35 - $67.72
Q1 2022	646,701	$42,780	$67.70	$60.93 - $74.01
Q4 2021	651,258	$47,640	$70.30	$63.19 - $77.32
Q3 2021	503,418	$35,158	$74.61	$66.08 - $79.98
Q2 2021	515,384	$40,545	$78.96	$73.23 - $86.58
Q1 2021	500,809	$37,721	$69.02	$59.59 - $79.48
Q4 2020	507,144	$31,504	$57.87	$48.80 - $64.63
Q3 2020	212,817	$10,874	$48.19	$40.96 - $52.66
Q2 2020	4,670	$219	$42.61	$30.45 - $54.67
Q1 2020	4,705	$171	$47.10	$26.54 - $57.53