John B Curcio — SEC Insider Profile, Roles & Companies

Insider at

MTX buying Aug. 8, 2005

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 47 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

47 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 24, 2006	MTX	A	500	$56.76	$28,380	6,894 Direct	+7.82%	Acquired	133.3% (price as of 2026-10-05)
April 3, 2006	MTX	A	51	$58.30	$2,973	6,394 Direct	+0.80%	Acquired	127.1% (price as of 2026-10-05)
March 21, 2006	MTX	A	6	$58.05	$348	6,342 Direct	+0.09%	Acquired	128.1% (price as of 2026-10-05)
Jan. 3, 2006	MTX	A	51	$58.58	$2,988	6,336 Direct	+0.81%	Acquired	126.0% (price as of 2026-10-05)
Dec. 16, 2005	MTX	A	6	$55.34	$332	6,285 Direct	+0.10%	Acquired	139.2% (price as of 2026-10-05)
Oct. 3, 2005	MTX	A	53	$57.05	$3,024	6,279 Direct	+0.85%	Acquired	132.1% (price as of 2026-10-05)
Sept. 15, 2005	MTX	A	6	$60.03	$360	6,226 Direct	+0.10%	Acquired	120.6% (price as of 2026-10-05)
Aug. 8, 2005	MTX	P	150	$60.84	$9,126	2,240 Direct	+7.18%	Acquired	117.6% (price as of 2026-10-05)
July 1, 2005	MTX	A	49	$61.78	$3,027	6,221 Direct	+0.79%	Acquired	114.3% (price as of 2026-10-05)
June 10, 2005	MTX	A	5	$66.94	$335	6,172 Direct	+0.08%	Acquired	97.8% (price as of 2026-10-05)
May 25, 2005	MTX	A	500	$66.95	$33,475	6,167 Direct	+8.82%	Acquired	97.8% (price as of 2026-10-05)
April 1, 2005	MTX	A	34	$65.30	$2,220	5,667 Direct	+0.60%	Acquired	102.8% (price as of 2026-10-05)
March 15, 2005	MTX	A	5	$63.45	$317	5,633 Direct	+0.09%	Acquired	108.7% (price as of 2026-10-05)
Feb. 3, 2005	MTX	M	190	·	·	0 Direct	-100.00%	Disposed	(price as of 2026-10-05)
Feb. 3, 2005	MTX	M	190	$46.62	$8,858	2,090 Direct	+10.00%	Acquired	184.0% (price as of 2026-10-05)
Jan. 3, 2005	MTX	A	34	$66.18	$2,250	5,628 Direct	+0.61%	Acquired	100.1% (price as of 2026-10-05)
Dec. 16, 2004	MTX	A	5	$66.43	$332	5,594 Direct	+0.09%	Acquired	99.3% (price as of 2026-10-05)
Oct. 1, 2004	MTX	A	38	$59.18	$2,249	5,589 Direct	+0.68%	Acquired	123.7% (price as of 2026-10-05)
Sept. 16, 2004	MTX	A	5	$56.54	$283	5,551 Direct	+0.09%	Acquired	134.2% (price as of 2026-10-05)
July 1, 2004	MTX	A	39	$57.77	$2,253	5,546 Direct	+0.71%	Acquired	129.2% (price as of 2026-10-05)
June 11, 2004	MTX	A	5	$59.14	$296	5,507 Direct	+0.09%	Acquired	123.9% (price as of 2026-10-05)
May 26, 2004	MTX	A	515	$57.08	$29,396	5,502 Direct	+10.33%	Acquired	132.0% (price as of 2026-10-05)
May 26, 2004	MTX	A	515	$57.08	$29,396	5,477 Direct	+10.38%	Acquired	132.0% (price as of 2026-10-05)
April 28, 2004	MTX	A	25	$60.52	$1,513	4,845 Direct	+0.52%	Acquired	118.8% (price as of 2026-10-05)
April 27, 2004	MTX	A	25	$60.40	$1,510	4,962 Direct	+0.51%	Acquired	119.2% (price as of 2026-10-05)
April 1, 2004	MTX	A	16	$58.05	$929	4,820 Direct	+0.33%	Acquired	128.1% (price as of 2026-10-05)
March 15, 2004	MTX	A	5	$55.81	$279	4,920 Direct	+0.10%	Acquired	137.2% (price as of 2026-10-05)
Feb. 25, 2004	MTX	A	25	$53.73	$1,343	4,915 Direct	+0.51%	Acquired	146.4% (price as of 2026-10-05)
Feb. 25, 2004	MTX	A	15	$53.73	$806	4,804 Direct	+0.31%	Acquired	146.4% (price as of 2026-10-05)
Jan. 21, 2004	MTX	A	25	$57.23	$1,431	4,891 Direct	+0.51%	Acquired	131.3% (price as of 2026-10-05)
Jan. 21, 2004	MTX	A	15	$57.23	$858	4,789 Direct	+0.31%	Acquired	131.3% (price as of 2026-10-05)
Jan. 2, 2004	MTX	A	32	$59.37	$1,900	4,774 Direct	+0.67%	Acquired	123.0% (price as of 2026-10-05)
Dec. 18, 2003	MTX	A	2	$58.68	$117	4,833 Direct	+0.04%	Acquired	125.6% (price as of 2026-10-05)
Oct. 23, 2003	MTX	A	25	$51.46	$1,286	4,741 Direct	+0.53%	Acquired	157.3% (price as of 2026-10-05)
Oct. 1, 2003	MTX	A	32	$51.50	$1,648	4,716 Direct	+0.68%	Acquired	157.1% (price as of 2026-10-05)
Sept. 18, 2003	MTX	A	3	$51.75	$155	4,773 Direct	+0.06%	Acquired	155.8% (price as of 2026-10-05)
June 13, 2003	MTX	A	3	$49.26	$148	4,738 Direct	+0.06%	Acquired	168.8% (price as of 2026-10-05)
May 22, 2003	MTX	A	540	$45.55	$24,597	4,735 Direct	+12.87%	Acquired	190.7% (price as of 2026-10-05)
March 14, 2003	MTX	A	3	$36.38	$109	4,138 Direct	+0.07%	Acquired	263.9% (price as of 2026-10-05)
Jan. 1, 2002	MTX	A	32	$46.64	$1,492	3,280 Direct	+0.99%	Acquired	183.9% (price as of 2026-10-05)
Oct. 1, 2001	MTX	A	32	$37.38	$1,196	3,195 Direct	+1.01%	Acquired	254.2% (price as of 2026-10-05)
July 1, 2001	MTX	A	32	$42.92	$1,373	3,135 Direct	+1.03%	Acquired	208.5% (price as of 2026-10-05)
June 15, 2001	MTX	A	2	$41.13	$82	3,103 Direct	+0.06%	Acquired	221.9% (price as of 2026-10-05)
June 16, 2000	MTX	A	2	$42.38	$85	2,329 Direct	+0.09%	Acquired	212.4% (price as of 2026-10-05)
June 17, 1999	MTX	A	1	$55.31	$55	1,708 Direct	+0.06%	Acquired	139.4% (price as of 2026-10-05)
Jan. 28, 1999	MTX	A	25	$39.56	$989	1,216 Direct	+2.10%	Acquired	234.7% (price as of 2026-10-05)
Jan. 1, 1999	MTX	A	25	$40.94	$1,024	1,191 Direct	+2.14%	Acquired	223.4% (price as of 2026-10-05)
May 29, 1998	MTX	A	1	$52.94	$53	1,064 Direct	+0.09%	Acquired	150.1% (price as of 2026-10-05)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
May 24, 2006	MTX	PHANTOM STOCK UNITS	COMMON STOCK (500)	·	·	500	Acquired
April 3, 2006	MTX	PHANTOM STOCK UNITS	COMMON STOCK (51)	·	·	51	Acquired
March 21, 2006	MTX	PHANTOM STOCK UNITS	COMMON STOCK (6)	·	·	6	Acquired
Jan. 3, 2006	MTX	PHANTOM STOCK UNITS	COMMON STOCK (59)	·	·	51	Acquired
Dec. 16, 2005	MTX	PHANTOM STOCK UNITS	COMMON STOCK (6)	·	·	6	Acquired
Oct. 3, 2005	MTX	PHANTOM STOCK UNITS	COMMON STOCK (53)	·	·	53	Acquired
Sept. 15, 2005	MTX	PHANTOM STOCK UNITS	COMMON STOCK (6)	·	·	6	Acquired
July 1, 2005	MTX	PHANTOM STOCK UNITS	COMMON STOCK (49)	·	·	49	Acquired
June 10, 2005	MTX	PHANTOM STOCK UNITS	COMMON STOCK (5)	·	·	5	Acquired
May 25, 2005	MTX	PHANTOM STOCK UNITS	COMMON STOCK (500)	·	·	500	Acquired
April 1, 2005	MTX	PHANTOM STOCK UNITS	COMMON STOCK (34)	·	·	34	Acquired
March 15, 2005	MTX	PHANTOM STOCK UNITS	COMMON STOCK (5)	·	·	5	Acquired
Feb. 3, 2005	MTX	DIRECTOR STOCK OPTION (RIGHT TO BUY)	COMMON STOCK (190)	$46.62	·	190	Disposed
Jan. 3, 2005	MTX	PHANTOM STOCK UNITS	COMMON STOCK (34)	·	·	34	Acquired
Dec. 16, 2004	MTX	PHANTOM STOCK UNITS	COMMON STOCK (5)	·	·	5	Acquired
Oct. 1, 2004	MTX	PHANTOM STOCK UNITS	COMMON STOCK (38)	·	·	38	Acquired
Sept. 16, 2004	MTX	PHANTOM STOCK UNITS	COMMON STOCK (5)	·	·	5	Acquired
July 1, 2004	MTX	PHANTOM STOCK UNITS	COMMON STOCK (39)	·	·	39	Acquired
June 11, 2004	MTX	PHANTOM STOCK UNITS	COMMON STOCK (5)	·	·	5	Acquired
May 26, 2004	MTX	PHANTOM STOCK UNITS	COMMON STOCK (515)	·	·	515	Acquired
May 26, 2004	MTX	PHANTOM STOCK UNITS	COMMON STOCK (515)	·	·	515	Acquired
April 28, 2004	MTX	PHANTOM STOCK UNITS	COMMON STOCK (25)	·	·	25	Acquired
April 27, 2004	MTX	PHANTOM STOCK UNITS	COMMON STOCK (25)	·	·	25	Acquired
April 1, 2004	MTX	PHANTOM STOCK UNITS	COMMON STOCK (16)	·	·	16	Acquired
March 15, 2004	MTX	PHANTOM STOCK UNITS	COMMON STOCK (5)	·	·	5	Acquired
Feb. 25, 2004	MTX	PHANTOM STOCK UNITS	COMMON STOCK (25)	$0.00	·	25	Acquired
Feb. 25, 2004	MTX	PHANTOM STOCK UNITS	COMMON STOCK (15)	·	·	15	Acquired
Jan. 21, 2004	MTX	PHANTOM STOCK UNITS	COMMON STOCK (25)	$0.00	·	25	Acquired
Jan. 21, 2004	MTX	PHANTOM STOCK UNITS	·	·	·	15	Acquired
Jan. 2, 2004	MTX	PHANTOM STOCK UNITS	·	·	·	32	Acquired
Dec. 18, 2003	MTX	PHANTOM STOCK UNITS	COMMON STOCK (2)	·	·	2	Acquired
Oct. 23, 2003	MTX	PHANTOM STOCK UNITS	·	·	·	25	Acquired
Oct. 1, 2003	MTX	PHANTOM STOCK UNITS	·	·	·	32	Acquired
Sept. 18, 2003	MTX	PHANTOM STOCK UNITS	COMMON STOCK (3)	·	·	3	Acquired
June 13, 2003	MTX	PHANTOM STOCK UNITS	COMMON STOCK (3)	·	·	3	Acquired
May 22, 2003	MTX	PHANTOM STOCK UNITS	COMMON STOCK (540)	$0.00	·	540	Acquired
March 14, 2003	MTX	PHANTOM STOCK UNITS	COMMON STOCK (3)	·	·	3	Acquired
Jan. 1, 2002	MTX	PHANTOM STOCK UNITS	COMMON STOCK (32)	$0.00	·	32	Acquired
Oct. 1, 2001	MTX	PHANTOM STOCK UNITS	COMMON STOCK (32)	$0.00	·	32	Acquired
July 1, 2001	MTX	PHANTOM STOCK UNITS	COMMON STOCK (32)	$0.00	·	32	Acquired
June 15, 2001	MTX	PHANTOM STOCK UNITS	COMMON STOCK (2)	·	·	2	Acquired
June 16, 2000	MTX	PHANTOM STOCK UNITS	COMMON STOCK (2)	·	·	2	Acquired
June 17, 1999	MTX	PHANTOM STOCK UNITS	COMMON STOCK (1)	·	·	1	Acquired
Jan. 28, 1999	MTX	PHANTOM STOCK UNITS	COMMON STOCK (25)	·	·	25	Acquired
Jan. 1, 1999	MTX	PHANTOM STOCK UNITS	COMMON STOCK (25)	·	·	25	Acquired
May 29, 1998	MTX	PHANTOM STOCK UNITS	COMMON STOCK (1)	$0.00	·	1	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).