Duane Dunham

CIK 1202198 · View on SEC EDGAR ↗

Insider

First SEC filing: Dec. 18, 2009 · Latest: Dec. 18, 2009

On this page

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 93 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

93 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Sept. 22, 2015 MTX P 500 $51.41 $25,705 1,700 Direct +41.67% Acquired 41.8% (price as of 2026-08-19)
Sept. 22, 2015 MTX P 500 $51.70 $25,850 1,700 Direct +41.67% Acquired 41.0% (price as of 2026-08-19)
March 3, 2008 MTX P 200 $60.64 $12,128 600 Direct +50.00% Acquired 140.5% (price as of 2026-08-19)
Nov. 2, 2005 MTX P 100 $54.16 $5,416 400 Direct +33.33% Acquired 169.2% (price as of 2026-08-19)
Nov. 2, 2005 MTX P 100 $54.20 $5,420 300 Direct +50.00% Acquired 169.0% (price as of 2026-08-19)
Nov. 2, 2005 MTX P 100 $53.55 $5,355 200 Direct +100.00% Acquired 172.3% (price as of 2026-08-19)
Nov. 2, 2005 MTX P 100 $53.56 $5,356 100 Direct — Acquired 172.3% (price as of 2026-08-19)

Showing latest 100 of 114 transactions

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
June 14, 2018 MTX Phantom Stock Units Common Stock (18) — — 18 Acquired
May 16, 2018 MTX Phantom Stock Units Common Stock — — 1,381 Acquired
May 16, 2018 MTX Phantom Stock Units Common Stock (1,344) — — 1,344 Acquired
March 8, 2018 MTX Phantom Stock Units Common Stock (18) — — 18 Acquired
Dec. 8, 2017 MTX Phantom Stock Units Common Stock (19) — — 19 Acquired
Sept. 7, 2017 MTX Phantom Stock Units Common Stock (21) — — 21 Acquired
June 9, 2017 MTX Phantom Stock Units Common Stock (17) — — 17 Acquired
May 17, 2017 MTX Phantom Stock Units Common Stock (1,381) — — 1,381 Acquired
March 9, 2017 MTX Phantom Stock Units Common Stock (17) — — 17 Acquired
Dec. 9, 2016 MTX Phantom Stock Units Common Stock (15) — — 15 Acquired
Sept. 8, 2016 MTX Phantom Stock Units Common Stock (18) — — 18 Acquired
June 9, 2016 MTX Phantom Stock Units Common Stock (21) — — 21 Acquired
May 11, 2016 MTX Phantom Stock Units Common Stock (1,496) — — 1,496 Acquired
March 10, 2016 MTX Phantom Stock Units Common Stock (22) — — 22 Acquired
Dec. 10, 2015 MTX Phantom Stock Units Common Stock (21) — — 21 Acquired
Sept. 10, 2015 MTX Phantom Stock Units Common Stock (23) — — 23 Acquired
June 10, 2015 MTX Phantom Stock Units Common Stock (16) — — 16 Acquired
May 13, 2015 MTX Phantom Stock Units Common Stock (1,177) — — 1,177 Acquired
March 11, 2015 MTX Phantom Stock Units Common Stock (16) — — 16 Acquired
Dec. 11, 2014 MTX Phantom Stock Units Common Stock (16) — — 16 Acquired
Sept. 11, 2014 MTX Phantom Stock Units Common Stock (18) — — 18 Acquired
June 11, 2014 MTX Phantom Stock Units Common Stock (17) — — 17 Acquired
May 14, 2014 MTX Phantom Stock Units Common Stock (1,276) — — 1,276 Acquired
March 13, 2014 MTX Phantom Stock Units Common Stock (18) — — 18 Acquired
Dec. 12, 2013 MTX Phantom Stock Units Common Stock (18) — — 18 Acquired
Sept. 12, 2013 MTX Phantom Stock Units Common Stock (22) — — 22 Acquired
June 12, 2013 MTX Phantom Stock Units Common Stock (24) — — 24 Acquired
May 15, 2013 MTX Phantom Stock Units Common Stock (1,757) — — 1,757 Acquired
March 13, 2013 MTX Phantom Stock Units Common Stock (23) — — 23 Acquired
Dec. 31, 2012 MTX Phantom Stock Units Common Stock (23) — — 23 Acquired
Sept. 13, 2012 MTX Phantom Stock Units Common Stock (6) — — 6 Acquired
June 13, 2012 MTX Phantom Stock Units Common Stock (7) — — 7 Acquired
May 16, 2012 MTX Phantom Stock Units Common Stock (1,021) — — 1,021 Acquired
March 15, 2012 MTX Phantom Stock Units Common Stock (6) — — 6 Acquired
Dec. 15, 2011 MTX Phantom Stock Units Common Stock (7) — — 7 Acquired
Sept. 15, 2011 MTX Phantom Stock Units Common Stock (8) — — 8 Acquired
June 15, 2011 MTX Phantom Stock Units Common Stock (7) — — 7 Acquired
May 18, 2011 MTX Phantom Stock Units Common Stock (905) — — 905 Acquired
Dec. 16, 2010 MTX Phantom Stock Units Common Stock (6) — — 6 Acquired
Oct. 1, 2010 MTX Phantom Stock Units Common Stock (51) — — 51 Acquired
Sept. 16, 2010 MTX Phantom Stock Units Common Stock (7) — — 7 Acquired
June 16, 2010 MTX Phantom Stock Units Common Stock (7) — — 7 Acquired
May 19, 2010 MTX Phantom Stock Units Common Stock (982) — — 982 Acquired
March 17, 2010 MTX Phantom Stock Units Common Stock (6) — — 6 Acquired
March 16, 2010 MTX Phantom Stock Units Common Stock (6) — — 6 Acquired
Dec. 17, 2009 MTX Phantom Stock Units Common Stock (6) — — 6 Acquired
Sept. 17, 2009 MTX Phantom Stock Units Common Stock (7) — — 7 Acquired
June 17, 2009 MTX Phantom Stock Units Common Stock (9) — — 9 Acquired
May 20, 2009 MTX Phantom Stock Units Common Stock (1,360) — — 1,360 Acquired
March 18, 2009 MTX Phantom Stock Units Common Stock (7) — — 7 Acquired
Dec. 12, 2008 MTX Phantom Stock Units Common Stock (5) — — 5 Acquired
Sept. 17, 2008 MTX Phantom Stock Units Common Stock (4) — — 4 Acquired
June 6, 2008 MTX Phantom Stock Units Common Stock (4) — — 4 Acquired
May 28, 2008 MTX Phantom Stock Units Common Stock (754) — — 754 Acquired
March 19, 2008 MTX Phantom Stock Units Common Stock (3) — — 3 Acquired
March 19, 2008 MTX Phantom Stock Units Common Stock (3) — — 3 Acquired
Jan. 2, 2008 MTX Phantom Stock Units Common Stock (47) — — 47 Acquired
Dec. 14, 2007 MTX Phantom Stock Units Common Stock (3) — — 3 Acquired
Oct. 1, 2007 MTX Phantom Stock Units Common Stock (44) — — 44 Acquired
Sept. 17, 2007 MTX Phantom Stock Units Common Stock (3) — — 3 Acquired
July 2, 2007 MTX Phantom Stock Units Common Stock (45) — — 45 Acquired
June 8, 2007 MTX Phantom Stock Units Common Stock (3) — — 3 Acquired
May 23, 2007 MTX PHANTOM STOCK UNITS COMMON STOCK (500) — — 500 Acquired
April 2, 2007 MTX Phantom Stock Units Common Stock (48) — — 48 Acquired
March 20, 2007 MTX Phantom Stock Units Common Stock (3) — — 3 Acquired
Jan. 3, 2007 MTX PHANTOM STOCK UNITS COMMON STOCK (50) — — 50 Acquired
Dec. 15, 2006 MTX PHANTOM STOCK UNITS COMMON STOCK (3) — — 3 Acquired
Oct. 2, 2006 MTX PHANTOM STOCK UNITS COMMON STOCK (57) — — 57 Acquired
Sept. 15, 2006 MTX PHANTOM STOCK UNITS COMMON STOCK (3) — — 3 Acquired
July 3, 2006 MTX PHANTOM STOCK UNITS COMMON STOCK (58) — — 58 Acquired
June 9, 2006 MTX PHANTOM STOCK UNITS COMMON STOCK (3) — — 3 Acquired
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 (2) — — 2 Acquired
Jan. 3, 2006 MTX PHANTOM STOCK UNITS COMMON STOCK (51) — — 51 Acquired
Dec. 16, 2005 MTX PHANTOM STOCK UNITS COMMON STOCK (2) — — 2 Acquired
Oct. 3, 2005 MTX PHANTOM STOCK UNITS COMMON STOCK (53) — — 53 Acquired
Sept. 15, 2005 MTX PHANTOM STOCK UNITS COMMON STOCK (2) — — 2 Acquired
July 1, 2005 MTX PHANTOM STOCK UNITS COMMON STOCK (49) — — 49 Acquired
June 10, 2005 MTX PHANTOM STOCK UNITS COMMON STOCK (2) — — 2 Acquired
May 25, 2005 MTX PHANTOM STOCK UNITS COMMON STOCK (500) — — 500 Acquired
April 1, 2005 MTX PHANTOM STOCK UNITS COMMON STOCK (46) — — 46 Acquired
March 15, 2005 MTX PHANTOM STOCK UNITS COMMON STOCK (2) — — 2 Acquired
Jan. 3, 2005 MTX PHANTOM STOCK UNITS COMMON STOCK (45) — — 45 Acquired
Dec. 16, 2004 MTX PHANTOM STOCK UNITS COMMON STOCK (2) — — 2 Acquired
Oct. 1, 2004 MTX PHANTOM STOCK UNITS COMMON STOCK (51) — — 51 Acquired
Sept. 16, 2004 MTX PHANTOM STOCK UNITS COMMON STOCK (2) — — 2 Acquired
July 1, 2004 MTX PHANTOM STOCK UNITS COMMON STOCK (52) — — 52 Acquired
June 11, 2004 MTX PHANTOM STOCK UNITS COMMON STOCK (2) — — 2 Acquired
June 4, 2004 MTX PHANTOM STOCK UNITS COMMON STOCK (15) — — 15 Acquired
May 26, 2004 MTX PHANTOM STOCK UNITS COMMON STOCK (500) — — 500 Acquired
May 26, 2004 MTX PHANTOM STOCK UNITS COMMON STOCK (500) — — 500 Acquired
April 30, 2004 MTX PHANTOM STOCK UNITS COMMON STOCK (30) — — 30 Acquired
April 27, 2004 MTX PHANTOM STOCK UNITS COMMON STOCK (15) — — 15 Acquired
March 15, 2004 MTX PHANTOM STOCK UNITS COMMON STOCK (1) — — 1 Acquired
Dec. 18, 2003 MTX PHANTOM STOCK UNITS COMMON STOCK (1) — — 1 Acquired
Sept. 18, 2003 MTX PHANTOM STOCK UNITS COMMON STOCK (1) — — 1 Acquired
June 13, 2003 MTX PHANTOM STOCK UNITS COMMON STOCK (1) — — 1 Acquired
March 14, 2003 MTX PHANTOM STOCK UNITS COMMON STOCK (0) — — 0 Acquired
Oct. 24, 2002 MTX PHANTOM STOCK UNITS COMMON STOCK (500) — — 500 Acquired

Showing latest 100 of 107 transactions

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