Luther Tai

CIK 1407609 · View on SEC EDGAR ↗

Insider

First SEC filing: July 30, 2007 · Latest: Feb. 17, 2009

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 37 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

37 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
April 30, 2013 ED P 127 $61.72 $7,838 33,975 Direct +0.38% Acquired 76.3% (price as of 2026-08-20)
March 31, 2013 ED P 216 $58.91 $12,725 33,848 Direct +0.64% Acquired 84.7% (price as of 2026-08-20)
Feb. 28, 2013 ED P 40 $57.33 $2,293 33,384 Direct +0.12% Acquired 89.8% (price as of 2026-08-20)
Jan. 31, 2013 ED P 41 $56.05 $2,298 33,343 Direct +0.12% Acquired 94.1% (price as of 2026-08-20)
Dec. 31, 2012 ED P 154 $55.86 $8,602 33,302 Direct +0.46% Acquired 94.8% (price as of 2026-08-20)
Nov. 30, 2012 ED P 41 $56.11 $2,301 32,895 Direct +0.12% Acquired 93.9% (price as of 2026-08-20)
Oct. 31, 2012 ED P 39 $59.85 $2,334 32,854 Direct +0.12% Acquired 81.8% (price as of 2026-08-20)
Sept. 30, 2012 ED P 140 $60.26 $8,436 32,815 Direct +0.43% Acquired 80.5% (price as of 2026-08-20)
Aug. 31, 2012 ED P 37 $63.10 $2,335 32,440 Direct +0.11% Acquired 72.4% (price as of 2026-08-20)
July 31, 2012 ED P 37 $62.93 $2,328 32,403 Direct +0.11% Acquired 72.9% (price as of 2026-08-20)
June 30, 2012 ED P 134 $61.93 $8,299 32,366 Direct +0.42% Acquired 75.7% (price as of 2026-08-20)
May 31, 2012 ED P 39 $59.23 $2,310 32,010 Direct +0.12% Acquired 83.7% (price as of 2026-08-20)
April 30, 2012 ED P 40 $58.28 $2,331 31,971 Direct +0.13% Acquired 86.7% (price as of 2026-08-20)
March 31, 2012 ED P 140 $58.48 $8,187 31,931 Direct +0.44% Acquired 86.0% (price as of 2026-08-20)
Feb. 29, 2012 ED P 40 $58.44 $2,338 31,554 Direct +0.13% Acquired 86.2% (price as of 2026-08-20)
Jan. 31, 2012 ED P 39 $59.26 $2,311 31,514 Direct +0.12% Acquired 83.6% (price as of 2026-08-20)
Dec. 31, 2011 ED P 134 $59.47 $7,969 31,475 Direct +0.43% Acquired 82.9% (price as of 2026-08-20)
Nov. 30, 2011 ED P 40 $58.17 $2,327 31,111 Direct +0.13% Acquired 87.0% (price as of 2026-08-20)
Oct. 31, 2011 ED P 41 $56.98 $2,336 31,071 Direct +0.13% Acquired 90.9% (price as of 2026-08-20)
Sept. 30, 2011 ED P 139 $56.38 $7,837 31,031 Direct +0.45% Acquired 93.0% (price as of 2026-08-20)
Aug. 31, 2011 ED P 43 $53.39 $2,296 30,655 Direct +0.14% Acquired 103.8% (price as of 2026-08-20)
July 31, 2011 ED P 43 $53.48 $2,300 30,612 Direct +0.14% Acquired 103.4% (price as of 2026-08-20)
June 30, 2011 ED P 147 $52.35 $7,695 30,569 Direct +0.48% Acquired 107.8% (price as of 2026-08-20)
May 31, 2011 ED P 44 $53.10 $2,336 30,169 Direct +0.15% Acquired 104.9% (price as of 2026-08-20)
April 30, 2011 ED P 46 $50.58 $2,327 30,125 Direct +0.15% Acquired 115.1% (price as of 2026-08-20)
March 31, 2011 ED P 151 $49.83 $7,524 30,079 Direct +0.50% Acquired 118.3% (price as of 2026-08-20)
Feb. 28, 2011 ED P 47 $49.45 $2,324 29,667 Direct +0.16% Acquired 120.0% (price as of 2026-08-20)
Jan. 31, 2011 ED P 46 $49.83 $2,292 18,712 Direct +0.25% Acquired 118.3% (price as of 2026-08-20)
Dec. 31, 2010 ED P 148 $49.33 $7,301 18,665 Direct +0.80% Acquired 120.5% (price as of 2026-08-20)
Nov. 30, 2010 ED P 47 $49.58 $2,330 18,338 Direct +0.26% Acquired 119.4% (price as of 2026-08-20)
Oct. 31, 2010 ED P 48 $48.61 $2,333 18,291 Direct +0.26% Acquired 123.8% (price as of 2026-08-20)
Sept. 30, 2010 ED P 149 $47.96 $7,146 18,244 Direct +0.82% Acquired 126.8% (price as of 2026-08-20)
Aug. 31, 2010 ED P 49 $47.39 $2,322 17,963 Direct +0.27% Acquired 129.6% (price as of 2026-08-20)
Aug. 12, 2010 ED S 74,000 $48.02 $3,553,480 17,915 Direct -80.51% Disposed 126.6% (price as of 2026-08-20)
July 31, 2010 ED P 51 $45.14 $2,302 17,915 Direct +0.29% Acquired 141.0% (price as of 2026-08-20)
June 30, 2010 ED P 153 $43.29 $6,623 17,863 Direct +0.86% Acquired 151.3% (price as of 2026-08-20)
May 31, 2010 ED P 49 $44.55 $2,183 17,566 Direct +0.28% Acquired 144.2% (price as of 2026-08-20)
April 30, 2010 ED P 49 $44.86 $2,198 17,517 Direct +0.28% Acquired 142.5% (price as of 2026-08-20)
March 31, 2010 ED P 148 $43.87 $6,493 17,468 Direct +0.85% Acquired 148.0% (price as of 2026-08-20)
Feb. 28, 2010 ED P 51 $43.00 $2,193 17,180 Direct -0.30% Disposed 153.0% (price as of 2026-08-20)
Jan. 31, 2010 ED P 48 $45.39 $2,179 11,702 Direct -0.41% Disposed 139.7% (price as of 2026-08-20)
Jan. 25, 2010 ED S 22,000 $43.53 $957,660 11,653 Direct -65.37% Disposed 149.9% (price as of 2026-08-20)
Dec. 31, 2009 ED P 140 $45.02 $6,303 11,368 Direct -1.22% Disposed 141.7% (price as of 2026-08-20)
Nov. 30, 2009 ED P 53 $41.75 $2,213 11,228 Direct +0.47% Acquired 160.6% (price as of 2026-08-20)
Oct. 30, 2009 ED P 53 $41.22 $2,185 11,175 Direct +0.48% Acquired 163.9% (price as of 2026-08-20)
Sept. 30, 2009 ED P 152 $40.24 $6,116 11,122 Direct +1.39% Acquired 170.4% (price as of 2026-08-20)
Aug. 31, 2009 ED P 55 $39.79 $2,188 10,970 Direct +0.50% Acquired 173.4% (price as of 2026-08-20)
July 31, 2009 ED P 59 $37.51 $2,213 10,914 Direct +0.54% Acquired 190.0% (price as of 2026-08-20)
June 30, 2009 ED P 171 $36.47 $6,236 10,856 Direct +1.60% Acquired 198.3% (price as of 2026-08-20)
May 31, 2009 ED P 64 $36.15 $2,314 10,684 Direct +0.60% Acquired 201.0% (price as of 2026-08-20)
April 30, 2009 ED P 60 $38.55 $2,313 10,620 Direct +0.57% Acquired 182.2% (price as of 2026-08-20)
March 31, 2009 ED P 172 $35.26 $6,065 10,560 Direct +1.66% Acquired 208.6% (price as of 2026-08-20)
Feb. 27, 2009 ED P 59 $39.20 $2,313 10,388 Direct +0.57% Acquired 177.5% (price as of 2026-08-20)
Feb. 27, 2009 ED P 59 $39.20 $2,313 10,388 Direct +0.57% Acquired 177.5% (price as of 2026-08-20)
Jan. 31, 2009 ED P 59 $39.17 $2,311 10,135 Direct +0.59% Acquired 177.8% (price as of 2026-08-20)
Dec. 31, 2008 ED P 152 $38.63 $5,872 8,992 Direct +1.72% Acquired 181.6% (price as of 2026-08-20)
Nov. 28, 2008 ED P 56 $41.41 $2,319 8,841 Direct +0.64% Acquired 162.7% (price as of 2026-08-20)
Oct. 31, 2008 ED P 55 $42.27 $2,325 8,785 Direct +0.63% Acquired 157.4% (price as of 2026-08-20)
Sept. 30, 2008 ED P 133 $42.79 $5,691 8,730 Direct +1.55% Acquired 154.3% (price as of 2026-08-20)
Aug. 29, 2008 ED P 59 $39.46 $2,328 8,597 Direct +0.69% Acquired 175.7% (price as of 2026-08-20)
July 31, 2008 ED P 59 $38.93 $2,297 8,538 Direct +0.70% Acquired 179.5% (price as of 2026-08-20)
June 30, 2008 ED P 129 $40.55 $5,231 8,479 Direct +1.54% Acquired 168.3% (price as of 2026-08-20)
May 31, 2008 ED P 55 $41.74 $2,296 8,350 Direct +0.66% Acquired 160.6% (price as of 2026-08-20)

Showing latest 100 of 119 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
Feb. 20, 2013 ED Performance Restricted Stock Units (Phantom Stock) Common Stock — Feb. 20, 2013 13,965 Disposed
Feb. 20, 2013 ED Performance Restricted Stock Units (Phantom Stock) Common Stock — — 8,600 Acquired
Feb. 17, 2012 ED Performance Restricted Stock Units (Phantom Stock) Common Stock — — 7,400 Acquired
Feb. 15, 2012 ED Performance Restricted Stock Units (Phantom Stock) Common Stock — Feb. 15, 2012 15,744 Disposed
Feb. 16, 2011 ED Performance Restricted Stock Units (Phantom Stock) Common Stock — Feb. 16, 2011 10,908 Disposed
Feb. 16, 2011 ED Performance Restricted Stock Units (Phantom Stock) Common Stock — — 9,500 Acquired
Aug. 12, 2010 ED Employee Stock Option (Right to Buy) Common Stock (18,000) $46.88 Jan. 19, 2016 18,000 Disposed
Aug. 12, 2010 ED Employee Stock Option (Right to Buy) Common Stock (16,000) $43.72 Jan. 20, 2015 16,000 Disposed
Aug. 12, 2010 ED Employee Stock Option (Right to Buy) Common Stock (14,000) $43.06 Jan. 15, 2014 14,000 Disposed
Aug. 12, 2010 ED Employee Stock Option (Right to Buy) Common Stock (14,000) $40.81 Jan. 23, 2013 14,000 Disposed
Aug. 12, 2010 ED Employee Stock Option (Right to Buy) Common Stock (12,000) $42.51 April 18, 2012 12,000 Disposed
April 1, 2010 ED Performance Restricted Stock Units (Phantom Stock) Common Stock — — 11,000 Acquired
Feb. 17, 2010 ED Performance Restricted Stoctk Units (Phantom Stock) Common Stock — Feb. 17, 2010 5,427 Disposed
Jan. 25, 2010 ED Stock Option (right to buy) Common Stock (12,000) $37.75 April 19, 2011 12,000 Disposed
Jan. 25, 2010 ED Stock Option (right to buy) Common Stock (10,000) $32.50 April 20, 2010 10,000 Disposed
Jan. 4, 2010 ED EIP Stock (Phantom Stock) Common Stock — Jan. 4, 2010 1,149 Disposed
Jan. 29, 2009 ED Performance Restricted Stoctk Units (Phantom Stock) Common Stock — Jan. 29, 2009 1,082 Disposed
Jan. 29, 2009 ED Performance Restricted Stock Units (Phantom Stock) Common Stock — — 11,000 Acquired
Jan. 2, 2009 ED EIP Stock (Phantom Stock) Common Stock — Jan. 2, 2009 1,203 Disposed
Jan. 16, 2008 ED Performance Restriced Stock Units (Phantom Stock) Common Stock — Jan. 16, 2008 1,087 Disposed
Jan. 16, 2008 ED Performance Restriced Stock Units (Phantom Stock) Common Stock — — 8,000 Acquired
Jan. 2, 2008 ED EIP Stock (Phantom Stock) Common Stock — Jan. 2, 2008 1,100 Disposed
Dec. 13, 2007 ED Employee Stock Option (Right to Buy) Common Stock (2,000) $42.56 Feb. 24, 2008 2,000 Disposed

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

Initial ownership (Form 3) 17 holdings

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

Date Ticker Security Shares Ownership
July 30, 2007 ED Common Stock 6,447 Direct
July 30, 2007 ED Common Stock 234 Indirect
July 30, 2007 ED EIP Stock→ Common Stock (1,073) 1,073 Direct
July 30, 2007 ED EIP Stock→ Common Stock (1,109) 1,109 Direct
July 30, 2007 ED EIP Stock→ Common Stock (997) 997 Direct
July 30, 2007 ED Employee Stock Option (Right to Buy)→ Common Stock (2,000) 2,000 Direct
July 30, 2007 ED Employee Stock Option (Right to Buy)→ Common Stock (7,000) 7,000 Direct
July 30, 2007 ED Employee Stock Option (Right to Buy)→ Common Stock (10,000) 10,000 Direct
July 30, 2007 ED Employee Stock Option (Right to Buy)→ Common Stock (12,000) 12,000 Direct
July 30, 2007 ED Employee Stock Option (Right to Buy)→ Common Stock (12,000) 12,000 Direct
July 30, 2007 ED Employee Stock Option (Right to Buy)→ Common Stock (14,000) 14,000 Direct
July 30, 2007 ED Employee Stock Option (Right to Buy)→ Common Stock (14,000) 14,000 Direct
July 30, 2007 ED Employee Stock Option (Right to Buy)→ Common Stock (16,000) 16,000 Direct
July 30, 2007 ED Employee Stock Option (Right to Buy)→ Common Stock (18,000) 18,000 Direct
July 30, 2007 ED Performance Based Restricted Stock Units [F2]→ Common Stock — Direct
July 30, 2007 ED Performance Based Restricted Stock Units [F2]→ Common Stock — Direct
July 30, 2007 ED Performance Based Restricted Stock Units [F2]→ Common Stock — Direct