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Insider Trading: Sigma Aldrich Corp
Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Sigma Aldrich Corp in the last 24 months are illustrated in figures 1 and 2. Table 1 shows the monthly insider trading data of Sigma Aldrich Corp since year 2005. Table 2 shows the detailed insider transactions of Sigma Aldrich Corp since 2005.
The reporting company's ticker symbol is SIAL.
The reporting company's CIK number is 90185.
The total value of stock buying since 2005 is $275,251.
The total value of stock sales is $29,981,644.
The total value of stock exercises is $78,948,088.
1 year stock price chart,
1 day stock price chart
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Figure 1. Monthly insider transaction values at Sigma Aldrich Corp (SIAL) in the past 24 months.
The trade values of insider stock buys, sales, and option exercises are in logarithmic scale
as shown on the right axis labels.
The detailed monthly and daily insider transactions are listed in the 2 tables below.
09 10 11 12 01 2007 02 03 04 05 06 07 08 09 10 11 12 01 2008 02 03 04 05 06 07 08 -
Figure 2. Average prices of insider buys, sales, and option exercises at Sigma Aldrich Corp (SIAL) in the past 24 months. See table 2 for insider transaction details.
09 10 11 12 01 2007 02 03 04 05 06 07 08 09 10 11 12 01 2008 02 03 04 05 06 07 08 -
Table 1. Monthly summaries of insider stock purchases, sales, and option exercises
for Sigma Aldrich Corp (SIAL).
Trading Period
year-month |
Insider Buying
Shares Value ($) |
Insider Sales
Shares Value ($) |
Option Exercises
Shares Value ($) |
| 2008-08 | 0 | 0 | 110,238 | 6,759,605 | 109,238 | 2,490,299 |
| 2008-07 | 0 | 0 | 185,014 | 11,056,099 | 174,500 | 3,506,570 |
| 2008-05 | 0 | 0 | 65,800 | 3,789,650 | 65,800 | 1,376,374 |
| 2008-04 | 0 | 0 | 0 | 0 | 2,000 | 57,120 |
| 2008-03 | 0 | 0 | 3,700 | 204,665 | 20,772 | 637,765 |
| 2008-02 | 0 | 0 | 29,260 | 1,578,843 | 325,400 | 11,293,493 |
| 2008-01 | 0 | 0 | 0 | 0 | 1,400 | 25,812 |
| 2007-11 | 430 | 22,351 | 0 | 0 | 59,040 | 1,924,984 |
| 2007-10 | 0 | 0 | 25,514 | 1,293,702 | 217,076 | 7,289,067 |
| 2007-08 | 1,000 | 48,662 | 11,200 | 559,788 | 127,718 | 4,323,191 |
| 2007-07 | 0 | 0 | 0 | 0 | 385,008 | 13,813,982 |
| 2007-05 | 0 | 0 | 0 | 0 | 274,200 | 8,978,977 |
| 2007-03 | 0 | 0 | 6,000 | 243,600 | 0 | 0 |
| 2007-02 | 2,400 | 98,790 | 10,000 | 415,500 | 220,660 | 6,877,515 |
| 2006-12 | 0 | 0 | 0 | 0 | 1,500 | 54,750 |
| 2006-11 | 150 | 11,554 | 4,800 | 365,232 | 126,136 | 7,692,603 |
| 2006-10 | 1,000 | 74,100 | 0 | 0 | 34,500 | 1,765,654 |
| 2006-08 | 0 | 0 | 0 | 0 | 7,100 | 392,288 |
| 2006-05 | 0 | 0 | 0 | 0 | 38,525 | 1,949,828 |
| 2006-03 | 0 | 0 | 0 | 0 | 32,480 | 1,802,932 |
| 2006-02 | 0 | 0 | 27,483 | 1,788,479 | 52,599 | 2,694,884 |
| 2005-11 | 300 | 19,794 | 4,200 | 273,966 | 0 | 0 |
| 2005-10 | 0 | 0 | 25,320 | 1,596,665 | 0 | 0 |
| 2003-07 | 0 | 0 | 1,000 | 55,850 | 0 | 0 |
Table 2. Detailed insider stock purchases, sales, and option exercises
for Sigma Aldrich Corp (SIAL)
| Trade Date |
Insider Name |
Trade Type |
Shares |
Price ($) |
Value ($) |
| 2008-08-13 | Hogan Michael R (CAO & CFO) | Sale | 20,600 | 62.14 | 1,279,208 |
| 2008-08-13 | Hogan Michael R (CAO & CFO) | Option Exercise | 20,600 | 18.25 | 375,950 |
| 2008-08-05 | Smoller David Adam | Sale | 1,000 | 61.00 | 61,000 |
| 2008-08-05 | Nagarkatti Jai (President & CEO) | Sale | 25,200 | 61.58 | 1,551,693 |
| 2008-08-05 | Nagarkatti Jai (President & CEO) | Option Exercise | 25,200 | 13.44 | 338,625 |
| 2008-08-05 | Harvey David R | Sale | 40,000 | 60.90 | 2,435,395 |
| 2008-08-05 | Harvey David R | Option Exercise | 40,000 | 28.82 | 1,152,999 |
| 2008-08-01 | Smoller David Adam | Sale | 3,000 | 60.00 | 180,000 |
| 2008-08-01 | Smoller David Adam | Option Exercise | 3,000 | 28.82 | 86,475 |
| 2008-07-30 | Feldker David P | Sale | 2,500 | 61.42 | 153,545 |
| 2008-07-30 | Feldker David P | Option Exercise | 2,500 | 28.82 | 72,062 |
| 2008-07-30 | Porwoll Joe | Sale | 5,400 | 61.00 | 329,400 |
| 2008-07-30 | Porwoll Joe | Option Exercise | 5,400 | 18.25 | 98,550 |
| 2008-07-30 | Hummel Larry M | Sale | 5,514 | 60.94 | 336,012 |
| 2008-07-29 | Feldker David P | Sale | 1,000 | 60.18 | 60,178 |
| 2008-07-29 | Feldker David P | Option Exercise | 1,000 | 28.66 | 28,660 |
| 2008-07-29 | Harvey David R (Director) | Sale | 5,000 | 60.00 | 300,000 |
| 2008-07-29 | Hogan Michael R (CAO & CFO) | Sale | 50,000 | 59.99 | 3,000,586 |
| 2008-07-29 | Hogan Michael R (CAO & CFO) | Option Exercise | 50,000 | 16.44 | 854,500 |
| 2008-07-28 | Wicks Frank (President, SAFC) | Sale | 52,800 | 59.28 | 3,125,405 |
| 2008-07-28 | Wicks Frank (President, SAFC) | Option Exercise | 52,800 | 21.74 | 1,260,069 |
| 2008-05-27 | Turza Carl S (CIO) | Sale | 5,800 | 56.93 | 330,194 |
| 2008-05-27 | Turza Carl S (CIO) | Option Exercise | 5,800 | 34.03 | 197,374 |
| 2008-05-19 | Vuilleumyer Herbert | Sale | 12,000 | 60.02 | 720,240 |
| 2008-05-19 | Vuilleumyer Herbert | Option Exercise | 12,000 | 18.25 | 219,000 |
| 2008-05-05 | Spatz D Dean (Director) | Sale | 24,000 | 56.77 | 1,362,480 |
| 2008-05-05 | Spatz D Dean (Director) | Option Exercise | 24,000 | 20.00 | 480,000 |
| 2008-05-02 | Oneil William C (Director) | Sale | 24,000 | 57.36 | 1,376,736 |
| 2008-05-02 | Oneil William C (Director) | Option Exercise | 24,000 | 20.00 | 480,000 |
| 2008-04-08 | Smoller David Adam | Option Exercise | 2,000 | 28.56 | 57,120 |
| 2008-03-04 | Meteer James W | Sale | 3,700 | 55.32 | 204,665 |
| 2008-03-04 | Meteer James W | Option Exercise | 9,000 | 25.32 | 227,835 |
| 2008-03-03 | Hogan Michael R (CAO & CFO) | Option Exercise | 11,772 | 34.82 | 409,930 |
| 2008-02-28 | Meteer James W | Option Exercise | 101,600 | 30.49 | 3,097,543 |
| 2008-02-27 | Feldker David P | Option Exercise | 9,400 | 42.22 | 396,842 |
| 2008-02-26 | Porwoll Joe | Option Exercise | 7,400 | 34.91 | 258,363 |
| 2008-02-25 | Zihlmann Josef | Option Exercise | 15,000 | 40.76 | 611,400 |
| 2008-02-25 | Miller Karen J (Controller) | Option Exercise | 12,000 | 13.44 | 161,250 |
| 2008-02-20 | Harvey David R | Option Exercise | 60,000 | 41.62 | 2,497,500 |
| 2008-02-19 | Harvey David R | Option Exercise | 20,000 | 41.62 | 832,300 |
| 2008-02-19 | Miller Karen J (Controller) | Sale | 19,260 | 53.89 | 1,037,921 |
| 2008-02-19 | Hogan Michael R (CAO & CFO) | Option Exercise | 100,000 | 34.38 | 3,438,295 |
| 2008-02-15 | Hogan Michael R (CAO & CFO) | Sale | 10,000 | 54.09 | 540,922 |
| 2008-01-09 | Richter Kirk A (Treasurer) | Option Exercise | 1,400 | 18.44 | 25,812 |
| 2007-11-08 | Smoller David Adam (Other) | Option Exercise | 1,000 | 28.56 | 28,560 |
| 2007-11-07 | Walton Steve (VP, Safety & Compliance) | Purchase | 430 | 51.98 | 22,351 |
| 2007-11-07 | Cottier Gilles (President, Research Essentials) | Option Exercise | 11,640 | 28.00 | 325,910 |
| 2007-11-06 | Vuilleumyer Herbert (Other) | Option Exercise | 8,000 | 32.58 | 260,630 |
| 2007-11-01 | Van Den Dool Gerrit (Other) | Option Exercise | 38,400 | 34.11 | 1,309,884 |
| 2007-10-31 | Hummel Larry M (Other) | Sale | 5,514 | 50.90 | 280,662 |
| 2007-10-30 | Julien David (President,Research Specialties) | Option Exercise | 23,738 | 35.21 | 836,235 |
| 2007-10-30 | Hummel Larry M (Other) | Option Exercise | 41,600 | 34.32 | 1,427,811 |
| 2007-10-29 | Porwoll Joe (Other) | Option Exercise | 7,400 | 31.98 | 236,679 |
| 2007-10-29 | Hogan Michael R (CAO & CFO) | Option Exercise | 100,000 | 32.53 | 3,253,320 |
| 2007-10-26 | Wicks Frank (President, SAFC) | Option Exercise | 30,000 | 34.30 | 1,029,142 |
| 2007-10-26 | Harvey David R (Director) | Sale | 10,000 | 50.50 | 505,000 |
| 2007-10-26 | Hogan Michael R (CAO & CFO) | Sale | 10,000 | 50.80 | 508,040 |
| 2007-08-10 | Richter Kirk A (Treasurer) | Option Exercise | 8,600 | 18.44 | 158,562 |
| 2007-08-08 | Rau Douglas (VP, Human Resources) | Purchase | 1,000 | 48.66 | 48,662 |
| 2007-08-08 | Feldker David P (Other) | Option Exercise | 9,468 | 33.36 | 315,847 |
| 2007-08-08 | Zihlmann Josef (Other) | Option Exercise | 4,000 | 33.58 | 134,300 |
| 2007-08-08 | Richter Kirk A (Treasurer) | Sale | 9,200 | 50.85 | 467,788 |
| 2007-08-07 | Porwoll Joe (Other) | Option Exercise | 5,200 | 30.52 | 158,727 |
| 2007-08-07 | Julien David (President,Research Specialties) | Option Exercise | 30,000 | 33.76 | 1,012,672 |
| 2007-08-03 | Fedoroff Nina (Director) | Option Exercise | 20,000 | 44.33 | 886,600 |
| 2007-08-03 | Harvey David R (Director) | Option Exercise | 12,050 | 35.75 | 430,757 |
| 2007-08-01 | Yousaf Shahed (President, Research Biotech) | Sale | 2,000 | 46.00 | 92,000 |
| 2007-08-01 | Meteer James W (VP, Quality) | Option Exercise | 38,400 | 31.92 | 1,225,726 |
| 2007-07-30 | Green Eric Mark (Other) | Option Exercise | 30,000 | 35.27 | 1,058,158 |
| 2007-07-30 | Yousaf Shahed (President, Research Biotech) | Option Exercise | 141,008 | 35.98 | 5,074,069 |
| 2007-07-27 | Krosley Kevin (Other) | Option Exercise | 6,000 | 32.39 | 194,362 |
| 2007-07-27 | Fedoroff Nina (Director) | Option Exercise | 88,000 | 34.86 | 3,067,343 |
| 2007-07-27 | Harvey David R (Director) | Option Exercise | 120,000 | 36.83 | 4,420,050 |
| 2007-05-09 | Harvey David R (Director) | Option Exercise | 22,200 | 34.18 | 758,781 |
| 2007-05-08 | Bouche Robert A (Other) | Option Exercise | 8,000 | 33.98 | 271,820 |
| 2007-05-07 | Harvey David R (Director) | Option Exercise | 50,000 | 31.39 | 1,569,583 |
| 2007-05-04 | Wicks Frank (President, SAFC) | Option Exercise | 48,000 | 30.64 | 1,470,624 |
| 2007-05-02 | Bouche Robert A (Other) | Option Exercise | 93,000 | 34.23 | 3,183,832 |
| 2007-05-01 | Feldker David P (VP, Sales & Production) | Option Exercise | 13,000 | 33.24 | 432,164 |
| 2007-05-01 | Fedoroff Nina (Director) | Option Exercise | 16,000 | 35.57 | 569,145 |
| 2007-05-01 | Hummel Larry M (Other) | Option Exercise | 24,000 | 30.13 | 723,028 |
| 2007-03-02 | Kelley Rodney (Other) | Sale | 6,000 | 40.60 | 243,600 |
| 2007-02-28 | Turza Carl S (CIO) | Purchase | 1,400 | 41.00 | 57,400 |
| 2007-02-27 | Turza Carl S (CIO) | Purchase | 1,000 | 41.39 | 41,390 |
| 2007-02-22 | Harvey David R (Director) | Option Exercise | 92,200 | 34.22 | 3,155,084 |
| 2007-02-21 | Zihlmann Josef (Other) | Option Exercise | 4,600 | 30.38 | 139,725 |
| 2007-02-21 | Nagarkatti Jai (President & CEO) | Option Exercise | 47,000 | 30.15 | 1,416,885 |
| 2007-02-21 | Harvey David R (Director) | Option Exercise | 30,000 | 34.06 | 1,021,949 |
| 2007-02-20 | Meteer James W (VP, Quality) | Option Exercise | 20,000 | 30.07 | 601,480 |
| 2007-02-16 | Bouche Robert A (Other) | Option Exercise | 9,000 | 29.76 | 267,795 |
| 2007-02-16 | Miller Karen J (Controller) | Option Exercise | 17,860 | 15.38 | 274,597 |
| 2007-02-16 | Hogan Michael R (CAO & CFO) | Sale | 10,000 | 41.55 | 415,500 |
| 2006-12-08 | Yousaf Shahed (President, Research Biotech) | Option Exercise | 1,500 | 36.50 | 54,750 |
| 2006-11-13 | Walton Steve (VP, Safety & Compliance) | Purchase | 150 | 77.03 | 11,554 |
| 2006-11-13 | Zihlmann Josef (Other) | Option Exercise | 1,700 | 56.68 | 96,364 |
| 2006-11-13 | Cottier Gilles (President, Research Essentials) | Option Exercise | 6,000 | 56.62 | 339,690 |
| 2006-11-13 | Miller Karen J (Controller) | Option Exercise | 700 | 30.75 | 21,525 |
| 2006-11-09 | Feldker David P (Other) | Option Exercise | 2,436 | 63.56 | 154,819 |
| 2006-11-09 | Vuilleumyer Herbert (Other) | Option Exercise | 8,000 | 51.69 | 413,500 |
| 2006-11-08 | Miller Karen J (Controller) | Sale | 4,800 | 76.09 | 365,232 |
| 2006-11-07 | Porwoll Joe (Other) | Option Exercise | 5,500 | 55.75 | 306,625 |
| 2006-11-07 | Kelley Rodney (President, JRH Biosciences) | Option Exercise | 10,000 | 56.21 | 562,100 |
| 2006-11-06 | Harvey David R (Director) | Option Exercise | 90,000 | 63.31 | 5,697,720 |
| 2006-11-02 | Miller Karen J (Controller) | Option Exercise | 1,800 | 55.70 | 100,260 |
| 2006-10-31 | Keffer Richard A (General Counsel & Secretary) | Purchase | 1,000 | 74.10 | 74,100 |
| 2006-10-31 | Porwoll Joe (Other) | Option Exercise | 4,500 | 55.50 | 249,750 |
| 2006-10-31 | Hummel Larry M (Other) | Option Exercise | 30,000 | 50.53 | 1,515,904 |
| 2006-08-10 | Feldker David P (Other) | Option Exercise | 1,600 | 61.36 | 98,176 |
| 2006-08-04 | Bouche Robert A (Other) | Option Exercise | 5,500 | 53.48 | 294,112 |
| 2006-05-08 | Zihlmann Josef (Other) | Option Exercise | 2,000 | 53.32 | 106,650 |
| 2006-05-04 | Meteer James W (VP Quality) | Option Exercise | 6,000 | 47.69 | 286,155 |
| 2006-05-04 | Kelley Rodney (President, JRH Biosciences) | Option Exercise | 1,000 | 25.50 | 25,500 |
| 2006-05-03 | Harvey David R (Director) | Option Exercise | 14,600 | 52.75 | 770,150 |
| 2006-05-01 | Harvey David R (Director) | Option Exercise | 14,925 | 51.01 | 761,373 |
| 2006-03-02 | Glover Scott (Other) | Option Exercise | 26,480 | 57.76 | 1,529,452 |
| 2006-03-02 | Meteer James W (VP, Quality) | Option Exercise | 6,000 | 45.58 | 273,480 |
| 2006-02-28 | Cottier Gilles (President, Research Essentials) | Sale | 750 | 64.67 | 48,502 |
| 2006-02-27 | Cottier Gilles (President, Research Essentials) | Option Exercise | 7,773 | 50.46 | 392,186 |
| 2006-02-23 | Nagarkatti Jai (President, CEO) | Option Exercise | 12,826 | 50.44 | 647,007 |
| 2006-02-22 | Wicks Frank (President, SAFC) | Sale | 833 | 64.80 | 53,978 |
| 2006-02-22 | Harvey David R (Director) | Sale | 25,900 | 65.10 | 1,685,999 |
| 2006-02-17 | Porwoll Joe (Other) | Option Exercise | 2,000 | 45.25 | 90,500 |
| 2006-02-17 | Hummel Larry M (Other) | Option Exercise | 30,000 | 52.17 | 1,565,191 |
| 2005-11-11 | Walton Steve (Compliance) | Purchase | 300 | 65.98 | 19,794 |
| 2005-11-02 | Blazevich Larry (Other) | Sale | 4,200 | 65.23 | 273,966 |
| 2005-10-30 | Harvey David R (Director) | Sale | 23,500 | 63.10 | 1,482,897 |
| 2005-10-30 | Miller Karen J (Controller) | Sale | 1,820 | 62.51 | 113,768 |
| 2003-07-28 | Hummel Larry M (Other) | Sale | 1,000 | 55.85 | 55,850 |
Insider trading activities including stock purchases, stock sales, and option exercises
listed in the above tables cannot be completely guaranteed as to their accuracy.
For more insider trading information of Sigma Aldrich Corp (symbol SIAL,
CIK number 90185) see
the Securities and Exchange Commission (SEC) website.
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