David N Walker
Insider
First SEC filing: May 1, 2006 · Latest: May 1, 2006
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 |
|---|---|---|---|---|---|---|---|---|---|
| May 30, 2014 | MMS | A | 105 | · | · | 104,655 Direct | +0.10% | Acquired | (price as of 2026-10-02) |
| March 31, 2014 | MMS | F | 3,468 | $44.86 | $155,574 | 23,829 Direct | -12.70% | Disposed | 17.4% (price as of 2026-10-02) |
| Feb. 28, 2014 | MMS | A | 108 | · | · | 114,658 Direct | +0.09% | Acquired | (price as of 2026-10-02) |
| Feb. 7, 2014 | MMS | S | 58,405 | $47.61 | $2,780,662 | 17,189 Direct | -77.26% | Disposed | 10.6% (price as of 2026-10-02) |
| Nov. 29, 2013 | MMS | A | 113 | · | · | 114,551 Direct | +0.10% | Acquired | (price as of 2026-10-02) |
| Nov. 11, 2013 | MMS | A | 12,761 | · | · | 12,761 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2013 | MMS | F | 21,648 | $45.04 | $975,026 | 25,718 Direct | -45.70% | Disposed | 16.9% (price as of 2026-10-02) |
| Aug. 30, 2013 | MMS | A | 179 | · | · | 149,042 Direct | +0.12% | Acquired | (price as of 2026-10-02) |
| May 31, 2013 | MMS | A | 90 | · | · | 74,432 Direct | +0.12% | Acquired | (price as of 2026-10-02) |
| March 28, 2013 | MMS | F | 2,509 | $79.97 | $200,645 | 24,937 Direct | -9.14% | Disposed | 31.7% (price as of 2026-10-02) |
| Feb. 28, 2013 | MMS | A | 101 | · | · | 81,923 Direct | +0.12% | Acquired | (price as of 2026-10-02) |
| Nov. 30, 2012 | MMS | A | 117 | · | · | 81,822 Direct | +0.14% | Acquired | (price as of 2026-10-02) |
| Nov. 21, 2012 | MMS | S | 10,804 | $60.93 | $658,288 | 19,866 Direct | -35.23% | Disposed | 72.8% (price as of 2026-10-02) |
| Nov. 13, 2012 | MMS | A | 14,079 | · | · | 14,079 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 1, 2012 | MMS | F | 7,764 | $60.19 | $467,315 | 30,670 Direct | -20.20% | Disposed | 74.9% (price as of 2026-10-02) |
| Aug. 31, 2012 | MMS | A | 146 | · | · | 88,375 Direct | +0.17% | Acquired | (price as of 2026-10-02) |
| May 31, 2012 | MMS | A | 174 | · | · | 88,229 Direct | +0.20% | Acquired | (price as of 2026-10-02) |
| May 7, 2012 | MMS | S | 25,059 | $46.58 | $1,167,248 | 17,686 Direct | -58.62% | Disposed | 126.1% (price as of 2026-10-02) |
| April 2, 2012 | MMS | F | 3,247 | $41.33 | $134,199 | 42,745 Direct | -7.06% | Disposed | 154.8% (price as of 2026-10-02) |
| Feb. 29, 2012 | MMS | A | 211 | · | · | 97,783 Direct | +0.22% | Acquired | (price as of 2026-10-02) |
| Nov. 30, 2011 | MMS | A | 211 | · | · | 97,572 Direct | +0.22% | Acquired | (price as of 2026-10-02) |
| Nov. 8, 2011 | MMS | A | 20,285 | · | · | 20,285 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2011 | MMS | F | 5,324 | $34.90 | $185,808 | 36,264 Direct | -12.80% | Disposed | 201.7% (price as of 2026-10-02) |
| Aug. 31, 2011 | MMS | A | 227 | · | · | 93,605 Direct | +0.24% | Acquired | (price as of 2026-10-02) |
| May 31, 2011 | MMS | A | 83 | · | · | 46,689 Direct | +0.18% | Acquired | (price as of 2026-10-02) |
| May 19, 2011 | MMS | S | 100 | $83.47 | $8,347 | 12,530 Direct | -0.79% | Disposed | 152.3% (price as of 2026-10-02) |
| May 19, 2011 | MMS | S | 1,000 | $83.45 | $83,450 | 12,630 Direct | -7.34% | Disposed | 152.4% (price as of 2026-10-02) |
| May 19, 2011 | MMS | S | 300 | $83.44 | $25,032 | 13,630 Direct | -2.15% | Disposed | 152.4% (price as of 2026-10-02) |
| May 19, 2011 | MMS | S | 200 | $83.31 | $16,662 | 13,930 Direct | -1.42% | Disposed | 152.8% (price as of 2026-10-02) |
| May 19, 2011 | MMS | S | 100 | $83.28 | $8,328 | 14,130 Direct | -0.70% | Disposed | 152.9% (price as of 2026-10-02) |
| May 19, 2011 | MMS | S | 1,685 | $83.16 | $140,125 | 14,300 Direct | -10.54% | Disposed | 153.2% (price as of 2026-10-02) |
| March 31, 2011 | MMS | F | 1,627 | $81.17 | $132,064 | 15,915 Direct | -9.27% | Disposed | 159.5% (price as of 2026-10-02) |
| March 31, 2011 | MMS | F | 1,627 | $81.17 | $132,064 | 15,915 Direct | -9.27% | Disposed | 159.5% (price as of 2026-10-02) |
| Feb. 28, 2011 | MMS | A | 104 | · | · | 51,477 Direct | +0.20% | Acquired | (price as of 2026-10-02) |
| Dec. 16, 2010 | MMS | S | 1,750 | $66.36 | $116,130 | 12,670 Direct | -12.14% | Disposed | 217.4% (price as of 2026-10-02) |
| Dec. 16, 2010 | MMS | M | 1,750 | $24.40 | $42,700 | 14,420 Direct | +13.81% | Acquired | 763.1% (price as of 2026-10-02) |
| Dec. 16, 2010 | MMS | M | 3,200 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 16, 2010 | MMS | M | 1,750 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 16, 2010 | MMS | S | 3,200 | $66.21 | $211,872 | 12,670 Direct | -20.16% | Disposed | 218.1% (price as of 2026-10-02) |
| Dec. 16, 2010 | MMS | M | 3,200 | $35.09 | $112,288 | 15,870 Direct | +25.26% | Acquired | 500.2% (price as of 2026-10-02) |
| Nov. 30, 2010 | MMS | A | 75 | · | · | 51,373 Direct | +0.15% | Acquired | (price as of 2026-10-02) |
| Nov. 17, 2010 | MMS | A | 13,245 | · | · | 13,245 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 1, 2010 | MMS | M | 5,000 | · | · | 3,200 Direct | -60.98% | Disposed | (price as of 2026-10-02) |
| Nov. 1, 2010 | MMS | S 10b5-1 | 5,000 | $60.31 | $301,550 | 12,670 Direct | -28.30% | Disposed | 249.2% (price as of 2026-10-02) |
| Nov. 1, 2010 | MMS | M | 5,000 | $35.09 | $175,450 | 17,670 Direct | +39.46% | Acquired | 500.2% (price as of 2026-10-02) |
| Oct. 25, 2010 | MMS | M | 5,500 | · | · | 8,200 Direct | -40.15% | Disposed | (price as of 2026-10-02) |
| Oct. 25, 2010 | MMS | S 10b5-1 | 5,500 | $60.89 | $334,895 | 12,670 Direct | -30.27% | Disposed | 245.9% (price as of 2026-10-02) |
| Oct. 25, 2010 | MMS | M | 5,500 | $35.09 | $192,995 | 18,170 Direct | +43.41% | Acquired | 500.2% (price as of 2026-10-02) |
| Oct. 18, 2010 | MMS | M | 5,500 | · | · | 13,700 Direct | -28.65% | Disposed | (price as of 2026-10-02) |
| Oct. 18, 2010 | MMS | S 10b5-1 | 5,500 | $62.56 | $344,080 | 12,670 Direct | -30.27% | Disposed | 236.6% (price as of 2026-10-02) |
| Oct. 18, 2010 | MMS | M | 5,500 | $35.09 | $192,995 | 18,170 Direct | +43.41% | Acquired | 500.2% (price as of 2026-10-02) |
| Oct. 11, 2010 | MMS | M | 5,500 | · | · | 19,200 Direct | -22.27% | Disposed | (price as of 2026-10-02) |
| Oct. 11, 2010 | MMS | S 10b5-1 | 5,500 | $61.58 | $338,690 | 12,670 Direct | -30.27% | Disposed | 242.0% (price as of 2026-10-02) |
| Oct. 11, 2010 | MMS | M | 5,500 | $35.09 | $192,995 | 18,170 Direct | +43.41% | Acquired | 500.2% (price as of 2026-10-02) |
| Oct. 4, 2010 | MMS | M | 5,500 | · | · | 24,700 Direct | -18.21% | Disposed | (price as of 2026-10-02) |
| Oct. 4, 2010 | MMS | S 10b5-1 | 630 | $60.92 | $38,380 | 12,670 Direct | -4.74% | Disposed | 245.7% (price as of 2026-10-02) |
| Oct. 4, 2010 | MMS | S 10b5-1 | 4,870 | $60.54 | $294,830 | 13,300 Direct | -26.80% | Disposed | 247.9% (price as of 2026-10-02) |
| Oct. 4, 2010 | MMS | M | 5,500 | $35.09 | $192,995 | 18,170 Direct | +43.41% | Acquired | 500.2% (price as of 2026-10-02) |
| Sept. 30, 2010 | MMS | F | 1,952 | $61.58 | $120,204 | 50,723 Direct | -3.71% | Disposed | 242.0% (price as of 2026-10-02) |
| Sept. 27, 2010 | MMS | M | 5,500 | · | · | 30,200 Direct | -15.41% | Disposed | (price as of 2026-10-02) |
| Sept. 27, 2010 | MMS | S 10b5-1 | 300 | $59.64 | $17,892 | 9,049 Direct | -3.21% | Disposed | 253.1% (price as of 2026-10-02) |
| Sept. 27, 2010 | MMS | S 10b5-1 | 5,200 | · | · | 9,349 Direct | -35.74% | Disposed | (price as of 2026-10-02) |
| Sept. 27, 2010 | MMS | M | 5,500 | $35.09 | $192,995 | 14,549 Direct | +60.78% | Acquired | 500.2% (price as of 2026-10-02) |
| Sept. 20, 2010 | MMS | M | 5,500 | · | · | 35,700 Direct | -13.35% | Disposed | (price as of 2026-10-02) |
| Sept. 20, 2010 | MMS | S 10b5-1 | 5,500 | $57.79 | $317,845 | 9,049 Direct | -37.80% | Disposed | 264.4% (price as of 2026-10-02) |
| Sept. 20, 2010 | MMS | M | 5,500 | $35.09 | $192,995 | 14,549 Direct | +60.78% | Acquired | 500.2% (price as of 2026-10-02) |
| Aug. 31, 2010 | MMS | A | 97 | · | · | 43,626 Direct | +0.22% | Acquired | (price as of 2026-10-02) |
| May 28, 2010 | MMS | A | 87 | · | · | 43,529 Direct | +0.20% | Acquired | (price as of 2026-10-02) |
| March 31, 2010 | MMS | F | 1,614 | $60.93 | $98,341 | 46,827 Direct | -3.33% | Disposed | 245.6% (price as of 2026-10-02) |
| Feb. 26, 2010 | MMS | A | 101 | · | · | 48,441 Direct | +0.21% | Acquired | (price as of 2026-10-02) |
| Feb. 22, 2010 | MMS | M | 8,800 | · | · | 41,200 Direct | -17.60% | Disposed | (price as of 2026-10-02) |
| Feb. 22, 2010 | MMS | S | 8,800 | $57.00 | $501,600 | 5,664 Direct | -60.84% | Disposed | 269.5% (price as of 2026-10-02) |
| Feb. 22, 2010 | MMS | M | 8,800 | $35.09 | $308,792 | 14,464 Direct | +155.37% | Acquired | 500.2% (price as of 2026-10-02) |
| Feb. 22, 2010 | MMS | M | 8,800 | · | · | 41,200 Direct | -17.60% | Disposed | (price as of 2026-10-02) |
| Feb. 22, 2010 | MMS | S | 8,800 | $57.00 | $501,600 | 0 Direct | -100.00% | Disposed | 269.5% (price as of 2026-10-02) |
| Feb. 22, 2010 | MMS | M | 8,800 | $35.09 | $308,792 | 8,800 Direct | · | Acquired | 500.2% (price as of 2026-10-02) |
| Nov. 30, 2009 | MMS | A | 90 | · | · | 48,340 Direct | +0.19% | Acquired | (price as of 2026-10-02) |
| Nov. 16, 2009 | MMS | A | 13,411 | · | · | 13,411 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2009 | MMS | F | 918 | $46.60 | $42,779 | 40,607 Direct | -2.21% | Disposed | 351.9% (price as of 2026-10-02) |
| Aug. 31, 2009 | MMS | A | 108 | · | · | 37,688 Direct | +0.29% | Acquired | (price as of 2026-10-02) |
| May 29, 2009 | MMS | A | 113 | · | · | 37,580 Direct | +0.30% | Acquired | (price as of 2026-10-02) |
| May 14, 2009 | MMS | S | 102 | $42.78 | $4,364 | 3,733 Direct | -2.66% | Disposed | 392.3% (price as of 2026-10-02) |
| May 14, 2009 | MMS | S | 78 | $42.71 | $3,331 | 3,835 Direct | -1.99% | Disposed | 393.1% (price as of 2026-10-02) |
| May 14, 2009 | MMS | S | 100 | $42.68 | $4,268 | 3,913 Direct | -2.49% | Disposed | 393.4% (price as of 2026-10-02) |
| May 14, 2009 | MMS | S | 200 | $42.67 | $8,534 | 4,013 Direct | -4.75% | Disposed | 393.6% (price as of 2026-10-02) |
| May 14, 2009 | MMS | S | 100 | $42.65 | $4,265 | 4,213 Direct | -2.32% | Disposed | 393.8% (price as of 2026-10-02) |
| May 14, 2009 | MMS | S | 1,224 | $42.63 | $52,179 | 4,313 Direct | -22.11% | Disposed | 394.0% (price as of 2026-10-02) |
| May 14, 2009 | MMS | S | 376 | $42.62 | $16,025 | 5,537 Direct | -6.36% | Disposed | 394.1% (price as of 2026-10-02) |
| May 14, 2009 | MMS | S | 200 | $42.61 | $8,522 | 5,913 Direct | -3.27% | Disposed | 394.3% (price as of 2026-10-02) |
| March 31, 2009 | MMS | F | 1,597 | $39.86 | $63,656 | 45,281 Direct | -3.41% | Disposed | 428.3% (price as of 2026-10-02) |
| Nov. 10, 2008 | MMS | A | 16,869 | · | · | 16,869 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2008 | MMS | F | 20 | $36.84 | $737 | 28,412 Direct | -0.07% | Disposed | 471.7% (price as of 2026-10-02) |
| March 31, 2008 | MMS | A | 14,601 | · | · | 14,601 Direct | · | Acquired | (price as of 2026-10-02) |
| March 31, 2008 | MMS | F | 813 | $37.29 | $30,317 | 13,818 Direct | -5.56% | Disposed | 464.8% (price as of 2026-10-02) |
| Sept. 30, 2007 | MMS | F | 7 | $43.58 | $305 | 14,631 Direct | -0.05% | Disposed | 383.2% (price as of 2026-10-02) |
| March 31, 2007 | MMS | F | 415 | $34.48 | $14,309 | 14,643 Direct | -2.76% | Disposed | 510.8% (price as of 2026-10-02) |
| March 31, 2007 | MMS | F | 427 | $34.48 | $14,723 | 14,631 Direct | -2.84% | Disposed | 510.8% (price as of 2026-10-02) |
| March 20, 2007 | MMS | A | 7,396 | · | · | 7,396 Direct | · | Acquired | (price as of 2026-10-02) |
| May 1, 2006 | MMS | A | 5,000 | · | · | 7,662 Direct | +187.83% | Acquired | (price as of 2026-10-02) |
| May 1, 2006 | MMS | A | 50,000 | · | · | 50,000 Direct | · | Acquired | (price as of 2026-10-02) |
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 30, 2014 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 105 | Acquired |
| Feb. 28, 2014 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 108 | Acquired |
| Nov. 29, 2013 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 113 | Acquired |
| Nov. 11, 2013 | MMS | Restricted Stock Unit [F1] | Common Stock | $47.02 | · | 12,761 | Acquired |
| Aug. 30, 2013 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 179 | Acquired |
| May 31, 2013 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 90 | Acquired |
| Feb. 28, 2013 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 101 | Acquired |
| Nov. 30, 2012 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 117 | Acquired |
| Nov. 13, 2012 | MMS | Restricted Stock Unit [F1] | Common Stock | $58.60 | · | 14,079 | Acquired |
| Aug. 31, 2012 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 146 | Acquired |
| May 31, 2012 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 174 | Acquired |
| Feb. 29, 2012 | MMS | Divident Equivalent Rights | Common Stock | · | · | 211 | Acquired |
| Nov. 30, 2011 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 211 | Acquired |
| Nov. 8, 2011 | MMS | Restricted Stock [F1] | Common Stock | $40.67 | · | 20,285 | Acquired |
| Aug. 31, 2011 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 227 | Acquired |
| May 31, 2011 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 83 | Acquired |
| Feb. 28, 2011 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 104 | Acquired |
| Dec. 16, 2010 | MMS | Stock Options | Common Stock | $35.09 | · | 3,200 | Disposed |
| Dec. 16, 2010 | MMS | Stock Options | Common Stock | $24.40 | · | 1,750 | Disposed |
| Nov. 30, 2010 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 75 | Acquired |
| Nov. 17, 2010 | MMS | Restricted Stock Unit [F1] | Common Stock | $60.40 | · | 13,245 | Acquired |
| Nov. 1, 2010 | MMS | Stock Options | Common Stock | $35.09 | · | 5,000 | Disposed |
| Oct. 25, 2010 | MMS | Stock Options | Common Stock | $35.09 | · | 5,500 | Disposed |
| Oct. 18, 2010 | MMS | Stock Options | Common Stock | $35.09 | · | 5,500 | Disposed |
| Oct. 11, 2010 | MMS | Stock Options | Common Stock | $35.09 | · | 5,500 | Disposed |
| Oct. 4, 2010 | MMS | Stock Options | Common Stock | $35.09 | · | 5,500 | Disposed |
| Sept. 27, 2010 | MMS | Stock Options | Common Stock | $35.09 | · | 5,500 | Disposed |
| Sept. 20, 2010 | MMS | Stock Options | Common Stock | $35.09 | · | 5,500 | Disposed |
| Aug. 31, 2010 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 97 | Acquired |
| May 28, 2010 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 87 | Acquired |
| Feb. 26, 2010 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 101 | Acquired |
| Feb. 22, 2010 | MMS | Stock Options | Common Stock | $35.09 | · | 8,800 | Disposed |
| Feb. 22, 2010 | MMS | Stock Options | Common Stock | $35.09 | · | 8,800 | Disposed |
| Nov. 30, 2009 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 90 | Acquired |
| Nov. 16, 2009 | MMS | Restricted Stock Units [F1] | Common Stock | $44.74 | · | 13,411 | Acquired |
| Aug. 31, 2009 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 108 | Acquired |
| May 29, 2009 | MMS | Dividend Equivalent Rights | Common Stock | · | · | 113 | Acquired |
| Nov. 10, 2008 | MMS | Restricted Stock Units [F1] | Common Stock | $29.64 | · | 16,869 | Acquired |
| March 31, 2008 | MMS | Restricted Stock Units [F1] | Common Stock | $36.71 | · | 14,601 | Acquired |
| March 20, 2007 | MMS | Restricted Stock Units [F1] | Common Stock | $33.80 | · | 7,396 | Acquired |
| May 1, 2006 | MMS | Restricted Stock Unit (RSU) | Common Stock | · | · | 5,000 | Acquired |
| May 1, 2006 | MMS | Stock Option (Right to Buy) | Common Stock | $35.09 | May 1, 2012 | 50,000 | 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 |
|---|---|---|---|---|
| May 1, 2006 | MMS | Common Stock | 253 | Direct |
| May 1, 2006 | MMS | Stock Option (Right To Buy) | 1,750 | Direct |
| May 1, 2006 | MMS | Restricted Stock Unit (RSU) | · | Direct |
| May 1, 2006 | MMS | Restricted Stock Units (RSU) | · | Direct |
| May 1, 2006 | MMS | Restricted Stocu Unit (RSU) | · | Direct |
| May 1, 2006 | MMS | Restricted Stock Unit (RSU) | · | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2014 | $421,250 | · | $600,000 | · | $800,000 | · | $26,323 | $1,847,573 |
| 2013 | $410,000 | · | $825,000 | · | $1,000,000 | · | $34,482 | $2,269,482 |
| 2012 | $410,000 | · | $825,000 | · | $360,000 | · | $39,660 | $1,634,660 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.