Greg A Robertson
Insider
First SEC filing: March 11, 2009 · Latest: March 11, 2009
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| March 9, 2012 | WM | A | 8,741 | · | · | 8,741 Direct | · | Acquired | (price as of 2026-10-05) |
| March 9, 2012 | WM | F | 506 | $34.94 | $17,680 | 34,796 Direct | -1.43% | Disposed | 491.5% (price as of 2026-10-05) |
| Feb. 16, 2012 | WM | F | 1,397 | $34.44 | $48,113 | 35,302 Direct | -3.81% | Disposed | 500.1% (price as of 2026-10-05) |
| Feb. 16, 2012 | WM | A | 4,991 | $34.44 | $171,890 | 36,699 Direct | +15.74% | Acquired | 500.1% (price as of 2026-10-05) |
| Oct. 28, 2011 | WM | S | 335 | $34.01 | $11,393 | 31,708 Direct | -1.05% | Disposed | 507.6% (price as of 2026-10-05) |
| Oct. 27, 2011 | WM | M | 19,770 | $27.88 | $551,188 | 0 Direct | -100.00% | Disposed | 641.2% (price as of 2026-10-05) |
| Oct. 27, 2011 | WM | F | 17,283 | $33.63 | $581,227 | 32,043 Direct | -35.04% | Disposed | 514.5% (price as of 2026-10-05) |
| Oct. 27, 2011 | WM | M | 19,770 | $27.88 | $551,188 | 49,326 Direct | +66.89% | Acquired | 641.2% (price as of 2026-10-05) |
| March 9, 2011 | WM | A | 27,680 | · | · | 27,680 Direct | · | Acquired | (price as of 2026-10-05) |
| March 4, 2011 | WM | S | 185 | $37.40 | $6,919 | 29,556 Direct | -0.62% | Disposed | 452.6% (price as of 2026-10-05) |
| March 3, 2011 | WM | F | 548 | $37.18 | $20,375 | 29,741 Direct | -1.81% | Disposed | 455.8% (price as of 2026-10-05) |
| Aug. 3, 2010 | WM | S | 3,300 | $34.42 | $113,586 | 30,289 Direct | -9.82% | Disposed | 500.4% (price as of 2026-10-05) |
| Aug. 3, 2010 | WM | S | 2,700 | $34.41 | $92,907 | 33,589 Direct | -7.44% | Disposed | 500.6% (price as of 2026-10-05) |
| Aug. 3, 2010 | WM | S | 2,100 | $34.47 | $72,387 | 36,289 Direct | -5.47% | Disposed | 499.5% (price as of 2026-10-05) |
| Aug. 3, 2010 | WM | S | 2,000 | $34.48 | $68,960 | 38,389 Direct | -4.95% | Disposed | 499.4% (price as of 2026-10-05) |
| Aug. 3, 2010 | WM | S | 2,000 | $34.49 | $68,980 | 40,389 Direct | -4.72% | Disposed | 499.2% (price as of 2026-10-05) |
| Aug. 3, 2010 | WM | S | 1,900 | $34.46 | $65,474 | 42,389 Direct | -4.29% | Disposed | 499.7% (price as of 2026-10-05) |
| Aug. 3, 2010 | WM | S | 1,000 | $34.43 | $34,430 | 44,289 Direct | -2.21% | Disposed | 500.2% (price as of 2026-10-05) |
| Aug. 3, 2010 | WM | S | 858 | $34.40 | $29,515 | 45,289 Direct | -1.86% | Disposed | 500.8% (price as of 2026-10-05) |
| Aug. 3, 2010 | WM | M | 17,500 | $24.01 | $420,175 | 46,147 Direct | +61.09% | Acquired | 760.7% (price as of 2026-10-05) |
| Aug. 3, 2010 | WM | M | 17,500 | $24.01 | $420,175 | 0 Direct | -100.00% | Disposed | 760.7% (price as of 2026-10-05) |
| March 9, 2010 | WM | A | 17,053 | · | · | 17,053 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 17, 2010 | WM | S | 449 | $32.89 | $14,768 | 28,647 Direct | -1.54% | Disposed | 528.3% (price as of 2026-10-05) |
| Feb. 16, 2010 | WM | F | 1,188 | $32.76 | $38,919 | 29,096 Direct | -3.92% | Disposed | 530.8% (price as of 2026-10-05) |
| Feb. 16, 2010 | WM | A | 4,491 | $32.76 | $147,125 | 30,284 Direct | +17.41% | Acquired | 530.8% (price as of 2026-10-05) |
| Jan. 28, 2010 | WM | S | 285 | $32.36 | $9,223 | 25,793 Direct | -1.09% | Disposed | 538.6% (price as of 2026-10-05) |
| Jan. 27, 2010 | WM | F | 327 | $32.44 | $10,608 | 26,078 Direct | -1.24% | Disposed | 537.1% (price as of 2026-10-05) |
| Jan. 26, 2010 | WM | F | 582 | $32.60 | $18,973 | 26,405 Direct | -2.16% | Disposed | 533.9% (price as of 2026-10-05) |
| March 9, 2009 | WM | A | 1,913 | · | · | 26,987 Direct | +7.63% | Acquired | (price as of 2026-10-05) |
| Feb. 18, 2009 | WM | S | 391 | $28.56 | $11,167 | 25,074 Direct | -1.54% | Disposed | 623.6% (price as of 2026-10-05) |
| Feb. 17, 2009 | WM | F | 1,033 | $28.50 | $29,440 | 25,465 Direct | -3.90% | Disposed | 625.1% (price as of 2026-10-05) |
| Feb. 17, 2009 | WM | A | 3,903 | $28.50 | $111,236 | 26,498 Direct | +17.27% | Acquired | 625.1% (price as of 2026-10-05) |
| Jan. 28, 2009 | WM | S | 206 | $33.20 | $6,839 | 22,595 Direct | -0.90% | Disposed | 522.5% (price as of 2026-10-05) |
| Jan. 28, 2009 | WM | S | 206 | $33.20 | $6,839 | 21,913 Direct | -0.93% | Disposed | 522.5% (price as of 2026-10-05) |
| Jan. 27, 2009 | WM | F | 682 | $32.72 | $22,315 | 22,801 Direct | -2.90% | Disposed | 531.6% (price as of 2026-10-05) |
| Jan. 27, 2009 | WM | F | 682 | $32.72 | $22,315 | 22,119 Direct | -2.99% | Disposed | 531.6% (price as of 2026-10-05) |
| May 14, 2008 | WM | S | 41 | $37.13 | $1,522 | 23,483 Direct | -0.17% | Disposed | 456.6% (price as of 2026-10-05) |
| May 13, 2008 | WM | F | 106 | $36.84 | $3,905 | 23,524 Direct | -0.45% | Disposed | 461.0% (price as of 2026-10-05) |
| March 5, 2008 | WM | S | 36 | $33.48 | $1,205 | 21,778 Direct | -0.17% | Disposed | 517.3% (price as of 2026-10-05) |
| March 4, 2008 | WM | F | 93 | $32.77 | $3,048 | 21,814 Direct | -0.42% | Disposed | 530.6% (price as of 2026-10-05) |
| March 3, 2008 | WM | A | 1,852 | · | · | 23,759 Direct | +8.45% | Acquired | (price as of 2026-10-05) |
| Feb. 20, 2008 | WM | S | 386 | $33.42 | $12,900 | 21,907 Direct | -1.73% | Disposed | 518.4% (price as of 2026-10-05) |
| Feb. 19, 2008 | WM | F | 1,006 | $33.83 | $34,033 | 22,293 Direct | -4.32% | Disposed | 510.9% (price as of 2026-10-05) |
| Feb. 19, 2008 | WM | A | 3,803 | $33.83 | $128,655 | 23,299 Direct | +19.51% | Acquired | 510.9% (price as of 2026-10-05) |
| Jan. 28, 2008 | WM | S | 210 | $31.10 | $6,531 | 19,496 Direct | -1.07% | Disposed | 564.5% (price as of 2026-10-05) |
| Jan. 27, 2008 | WM | F | 682 | $30.92 | $21,087 | 19,706 Direct | -3.35% | Disposed | 568.4% (price as of 2026-10-05) |
| March 4, 2007 | WM | F | 93 | $33.27 | $3,094 | 20,459 Direct | -0.45% | Disposed | 521.2% (price as of 2026-10-05) |
| Jan. 27, 2007 | WM | F | 681 | $37.28 | $25,388 | 20,552 Direct | -3.21% | Disposed | 454.3% (price as of 2026-10-05) |
| Jan. 26, 2007 | WM | A | 1,780 | · | · | 21,233 Direct | +9.15% | Acquired | (price as of 2026-10-05) |
| May 13, 2006 | WM | F | 106 | $36.01 | $3,817 | 19,453 Direct | -0.54% | Disposed | 473.9% (price as of 2026-10-05) |
| March 4, 2006 | WM | F | 93 | $33.20 | $3,088 | 19,559 Direct | -0.47% | Disposed | 522.5% (price as of 2026-10-05) |
| Feb. 21, 2006 | WM | M | 20,000 | $13.62 | $272,400 | 0 Direct | -100.00% | Disposed | 1417.3% (price as of 2026-10-05) |
| Feb. 21, 2006 | WM | M | 17,500 | $19.61 | $343,175 | 0 Direct | -100.00% | Disposed | 953.9% (price as of 2026-10-05) |
| Feb. 21, 2006 | WM | M | 12,500 | $24.01 | $300,125 | 17,500 Direct | -41.67% | Disposed | 760.7% (price as of 2026-10-05) |
| Feb. 21, 2006 | WM | S | 10,915 | $34.00 | $371,110 | 19,652 Direct | -35.71% | Disposed | 507.8% (price as of 2026-10-05) |
| Feb. 21, 2006 | WM | S | 200 | $33.97 | $6,794 | 30,567 Direct | -0.65% | Disposed | 508.4% (price as of 2026-10-05) |
| Feb. 21, 2006 | WM | S | 22,280 | $33.95 | $756,406 | 30,767 Direct | -42.00% | Disposed | 508.7% (price as of 2026-10-05) |
| Feb. 21, 2006 | WM | S | 1,500 | $33.94 | $50,910 | 53,047 Direct | -2.75% | Disposed | 508.9% (price as of 2026-10-05) |
| Feb. 21, 2006 | WM | S | 6,800 | $33.91 | $230,588 | 54,547 Direct | -11.08% | Disposed | 509.4% (price as of 2026-10-05) |
| Feb. 21, 2006 | WM | M | 12,500 | $24.01 | $300,125 | 61,347 Direct | +25.59% | Acquired | 760.7% (price as of 2026-10-05) |
| Feb. 21, 2006 | WM | M | 20,000 | $13.62 | $272,400 | 48,847 Direct | +69.33% | Acquired | 1417.3% (price as of 2026-10-05) |
| Feb. 21, 2006 | WM | M | 17,500 | $19.61 | $343,175 | 28,847 Direct | +154.23% | Acquired | 953.9% (price as of 2026-10-05) |
| Jan. 27, 2006 | WM | F | 340 | $31.68 | $10,771 | 11,347 Direct | -2.91% | Disposed | 552.3% (price as of 2026-10-05) |
| Jan. 27, 2006 | WM | A | 4,170 | · | · | 11,687 Direct | +55.47% | Acquired | (price as of 2026-10-05) |
| May 13, 2005 | WM | F | 105 | $28.70 | $3,014 | 7,513 Direct | -1.38% | Disposed | 620.1% (price as of 2026-10-05) |
| March 4, 2005 | WM | F | 114 | $29.50 | $3,363 | 7,614 Direct | -1.48% | Disposed | 600.5% (price as of 2026-10-05) |
| Jan. 27, 2005 | WM | A | 4,170 | · | · | 7,728 Direct | +117.20% | Acquired | (price as of 2026-10-05) |
| Jan. 27, 2005 | WM | A | 1,470 | · | · | 5,028 Direct | +41.32% | Acquired | (price as of 2026-10-05) |
| May 13, 2004 | WM | A | 1,600 | · | · | 3,547 Direct | +82.18% | Acquired | (price as of 2026-10-05) |
| May 13, 2004 | WM | A | 17,750 | $27.60 | $489,900 | 17,750 Direct | · | Acquired | 648.8% (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 |
|---|---|---|---|---|---|---|---|
| March 9, 2012 | WM | Stock Option (Right to Buy) [F1] | Common Stock | $34.94 | March 9, 2022 | 8,741 | Acquired |
| Oct. 27, 2011 | WM | Stock Option (Right to Buy) | Common Stock | $27.88 | March 7, 2012 | 19,770 | Disposed |
| March 9, 2011 | WM | Stock Option (Right to Buy) [F1] | Common Stock | $37.18 | March 9, 2021 | 27,680 | Acquired |
| Aug. 3, 2010 | WM | Stock Option (Right to Buy) | Common Stock | $24.01 | March 1, 2011 | 17,500 | Disposed |
| March 9, 2010 | WM | Stock Option (Right to Buy) [F1] | Common Stock | $33.49 | March 9, 2020 | 17,053 | Acquired |
| Feb. 21, 2006 | WM | Stock option (right to buy) [F2] | Common Stock | $13.62 | March 20, 2010 | 20,000 | Disposed |
| Feb. 21, 2006 | WM | Stock Option (right to buy) [F1] | Common Stock | $19.61 | March 6, 2013 | 17,500 | Disposed |
| Feb. 21, 2006 | WM | Stock Option (Right to Buy) [F1] | Common Stock | $24.01 | March 1, 2011 | 12,500 | Disposed |
| May 13, 2004 | WM | Stock Option (right to buy) [F2] | Common Stock | $27.60 | May 13, 2014 | 17,750 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 6 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 22, 2004 | WM | Common Stock [F1] | 1,947 | Direct |
| March 22, 2004 | WM | Stock Option (Right to Buy) [F2] | 30,000 | Direct |
| March 22, 2004 | WM | Stock Option (right to buy) [F2] | 19,770 | Direct |
| March 22, 2004 | WM | Stock Option (right to buy) [F2] | 17,500 | Direct |
| March 22, 2004 | WM | Stock Option (right to buy) [F2] | 12,250 | Direct |
| March 22, 2004 | WM | Stock option (right to buy) [F3] | 20,000 | Direct |