Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 22 non-open-market transactions below 12 months to the week close of 2026-10-23

Price change vs the latest weekly close (updated to the current quote in your browser when available), split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

22 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Dec. 15, 2010 ACM S 15 $28.24 $424 6,440 Direct -0.23% Disposed 114.2% (price as of )
Dec. 15, 2010 ACM S 30 $28.23 $847 6,410 Direct -0.47% Disposed 114.3% (price as of )
Dec. 15, 2010 ACM S 8 $28.22 $226 6,402 Direct -0.12% Disposed 114.4% (price as of )
Dec. 15, 2010 ACM S 46 $28.21 $1,298 6,356 Direct -0.72% Disposed 114.4% (price as of )
Dec. 15, 2010 ACM S 25 $28.19 $705 6,331 Direct -0.39% Disposed 114.6% (price as of )
Dec. 15, 2010 ACM S 19 $28.18 $535 6,312 Direct -0.30% Disposed 114.7% (price as of )
Dec. 15, 2010 ACM S 58 $28.17 $1,634 6,254 Direct -0.92% Disposed 114.7% (price as of )
Dec. 15, 2010 ACM S 102 $28.16 $2,872 6,152 Direct -1.63% Disposed 114.8% (price as of )
Dec. 15, 2010 ACM S 93 $28.15 $2,618 6,059 Direct -1.51% Disposed 114.9% (price as of )
Dec. 15, 2010 ACM S 48 $28.14 $1,351 6,011 Direct -0.79% Disposed 115.0% (price as of )
Dec. 15, 2010 ACM S 45 $28.13 $1,266 5,966 Direct -0.75% Disposed 115.0% (price as of )
Dec. 15, 2010 ACM S 25 $28.12 $703 5,941 Direct -0.42% Disposed 115.1% (price as of )
Dec. 15, 2010 ACM S 74 $28.11 $2,080 5,867 Direct -1.25% Disposed 115.2% (price as of )
Dec. 15, 2010 ACM S 18 $28.10 $506 5,849 Direct -0.31% Disposed 115.3% (price as of )
Dec. 15, 2010 ACM S 76 $28.09 $2,135 5,773 Direct -1.30% Disposed 115.3% (price as of )
Dec. 15, 2010 ACM S 35 $28.08 $983 5,738 Direct -0.61% Disposed 115.4% (price as of )
Dec. 15, 2010 ACM S 42 $28.07 $1,179 5,696 Direct -0.73% Disposed 115.5% (price as of )
Dec. 15, 2010 ACM S 17 $28.06 $477 5,679 Direct -0.30% Disposed 115.6% (price as of )
Dec. 15, 2010 ACM S 15 $28.05 $421 5,664 Direct -0.26% Disposed 115.7% (price as of )
Dec. 15, 2010 ACM S 66 $28.04 $1,851 5,598 Direct -1.17% Disposed 115.7% (price as of )
Dec. 15, 2010 ACM S 17 $28.03 $477 5,581 Direct -0.30% Disposed 115.8% (price as of )
Dec. 15, 2010 ACM S 68 $28.02 $1,905 5,513 Direct -1.22% Disposed 115.9% (price as of )
Dec. 15, 2010 ACM S 24 $28.01 $672 5,489 Direct -0.44% Disposed 116.0% (price as of )
Dec. 15, 2010 ACM S 50 $28.00 $1,400 5,439 Direct -0.91% Disposed 116.0% (price as of )
Dec. 15, 2010 ACM S 5 $27.99 $140 5,434 Direct -0.09% Disposed 116.1% (price as of )
Dec. 15, 2010 ACM S 43 $27.98 $1,203 5,391 Direct -0.79% Disposed 116.2% (price as of )
Dec. 15, 2010 ACM S 64 $27.97 $1,790 5,327 Direct -1.19% Disposed 116.3% (price as of )
Dec. 15, 2010 ACM S 51 $27.95 $1,425 5,276 Direct -0.96% Disposed 116.4% (price as of )
Dec. 15, 2010 ACM S 85 $27.94 $2,375 5,191 Direct -1.61% Disposed 116.5% (price as of )
Dec. 15, 2010 ACM S 20 $27.93 $559 5,171 Direct -0.39% Disposed 116.6% (price as of )
Dec. 15, 2010 ACM S 43 $27.92 $1,201 5,128 Direct -0.83% Disposed 116.7% (price as of )
Dec. 15, 2010 ACM S 26 $27.91 $726 5,102 Direct -0.51% Disposed 116.7% (price as of )
Dec. 15, 2010 ACM S 98 $27.90 $2,734 5,004 Direct -1.92% Disposed 116.8% (price as of )
Dec. 15, 2010 ACM S 33 $27.89 $920 4,971 Direct -0.66% Disposed 116.9% (price as of )
Dec. 15, 2010 ACM S 86 $27.88 $2,398 4,885 Direct -1.73% Disposed 117.0% (price as of )
Dec. 15, 2010 ACM S 388 $27.87 $10,814 4,497 Direct -7.94% Disposed 117.0% (price as of )
Dec. 15, 2010 ACM S 28 $27.86 $780 4,469 Direct -0.62% Disposed 117.1% (price as of )
Dec. 15, 2010 ACM S 23 $27.85 $641 4,446 Direct -0.51% Disposed 117.2% (price as of )
Dec. 15, 2010 ACM S 58 $27.84 $1,615 4,388 Direct -1.30% Disposed 117.3% (price as of )
Dec. 15, 2010 ACM S 18 $27.83 $501 4,370 Direct -0.41% Disposed 117.4% (price as of )
Dec. 15, 2010 ACM S 23 $27.82 $640 4,347 Direct -0.53% Disposed 117.4% (price as of )
Dec. 15, 2010 ACM S 51 $27.81 $1,418 4,296 Direct -1.17% Disposed 117.5% (price as of )
Dec. 15, 2010 ACM S 35 $27.80 $973 4,261 Direct -0.81% Disposed 117.6% (price as of )
Dec. 15, 2010 ACM S 25 $27.79 $695 4,236 Direct -0.59% Disposed 117.7% (price as of )
Dec. 15, 2010 ACM S 126 $27.78 $3,500 4,110 Direct -2.97% Disposed 117.7% (price as of )
Dec. 15, 2010 ACM S 18 $27.77 $500 4,092 Direct -0.44% Disposed 117.8% (price as of )
Dec. 15, 2010 ACM S 34 $27.76 $944 4,058 Direct -0.83% Disposed 117.9% (price as of )
Dec. 15, 2010 ACM S 63 $27.75 $1,748 3,995 Direct -1.55% Disposed 118.0% (price as of )
Dec. 15, 2010 ACM S 56 $27.74 $1,553 3,939 Direct -1.40% Disposed 118.1% (price as of )
Dec. 15, 2010 ACM S 104 $27.73 $2,884 3,835 Direct -2.64% Disposed 118.1% (price as of )
Dec. 15, 2010 ACM S 156 $27.71 $4,323 3,679 Direct -4.07% Disposed 118.3% (price as of )

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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Dec. 15, 2010 ACM Common Stock Unit Common Stock (6,455) · Dec. 15, 2010 6,455 Disposed
March 5, 2010 ACM Stock Option Common Stock (4,956) $28.67 March 5, 2017 4,956 Acquired
March 5, 2010 ACM Restricted Stock Unit Common Stock (1,744) · · 1,744 Acquired
Dec. 10, 2009 ACM Common Stock Unit Common Stock (547) · · 547 Acquired
Sept. 28, 2009 ACM Common Stock Unit Common Stock (599) · · 599 Acquired
June 15, 2009 ACM Common Stock Unit Common Stock (627) · · 627 Acquired
April 13, 2009 ACM Common Stock Unit Common Stock (570) · · 570 Acquired
March 5, 2009 ACM Stock Option Common Stock (10,000) $21.01 March 5, 2016 10,000 Acquired
Dec. 18, 2008 ACM Common Stock Unit Common Stock (559) · · 559 Acquired
Oct. 21, 2008 ACM Common Stock Unit Common Stock (1,027) · · 1,027 Acquired
June 25, 2008 ACM Common Stock Unit Common Stock (50) · · 50 Acquired
June 23, 2008 ACM Common Stock Common Stock (515) · · 515 Acquired
April 2, 2008 ACM Common Stock Common Stock (53) · · 53 Acquired
March 31, 2008 ACM Common Stock Common Stock (557) · · 557 Acquired
Jan. 31, 2008 ACM Common Stock Unit Common Stock (81) · · 81 Acquired
Jan. 29, 2008 ACM Common Stock Unit Common Stock (817) · · 817 Acquired
Oct. 11, 2007 ACM Common Stock Unit Common Stock (25) · · 25 Acquired
Oct. 9, 2007 ACM Common Stock Unit Common Stock (141) · · 141 Acquired
Aug. 16, 2007 ACM Common Stock Unit Common Stock (44) · · 44 Acquired
Aug. 14, 2007 ACM Common Stock Unit Common Stock (242) · · 242 Acquired
June 15, 2007 ACM Stock Option Common Stock (10,000) $24.71 June 15, 2014 10,000 Acquired

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

Initial ownership (Form 3) 2 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
May 1, 2008 HTO Common Stock 0 Direct
June 15, 2007 ACM No securities are beneficially owned 0 Direct

Holdings reported on Form 4 5 reported holdings

08

Positions listed on each Form 4 without a transaction in that filing (Table I and II holdings), newest filing first.

DateTickerSecuritySharesExercise priceExpirationOwnership
Dec. 17, 2010 ACM Restricted Stock Unit→ Common Stock (1,744) 1,744 · · Direct
Dec. 17, 2010 ACM Stock Option→ Common Stock (10,000) 10,000 $24.71 June 15, 2014 Direct
Dec. 17, 2010 ACM Stock Option→ Common Stock (10,000) 10,000 $27.00 Feb. 28, 2015 Direct
Dec. 17, 2010 ACM Stock Option→ Common Stock (10,000) 10,000 $21.01 March 5, 2016 Direct
Dec. 17, 2010 ACM Stock Option→ Common Stock (4,956) 4,956 $28.67 March 5, 2017 Direct