Yahoo! FinanceFinance Home - My Yahoo - Yahoo! - Help 

Sunday, March 21, 2010, 9:17PM ET - U.S. Markets Closed. Dow Down 0.35% Nasdaq Down 0.71%
Sigma-Aldrich Corporation (SIAL)On Mar 19: 54.71  Down 0.16 (0.29%)  
MORE ON SIAL
Quotes
Charts
News & Info
Company
Analyst Coverage
Ownership
HereInsider Transactions
Financials

Insider TransactionsGet Insider Transactions for:
NET SHARE PURCHASE ACTIVITY
Insider Purchases - Last 6 Months
 SharesTrans
Purchases4001
Sales193,03113
Net Shares Purchased
(Sold)
(192,631)14
Total Insider Shares Held12.49M N/A
% Net Shares Purchased
(Sold)
(1.5%) N/A
Net Institutional Purchases - Prior Qtr to Latest Qtr
 Shares
Net Shares Purchased (Sold)(2,808,820)
% Change in Institutional Shares Held(3.4%)
Data provided by Thomson Financial

INSIDER TRANSACTIONS REPORTED - LAST TWO YEARS
DateInsiderSharesTypeTransactionValue*
1-Mar-10HARVEY DAVID R
Director
15,000DirectOption Exercise at $25.86 per share.$387,900
1-Mar-10HARVEY DAVID R
Director
2,000DirectSale at $48.50 per share.$97,000
1-Mar-10HARVEY DAVID R
Director
15,000DirectSale at $48.50 per share.$727,500
24-Feb-10NAGARKATTI JAI
Officer
1,385DirectDisposition (Non Open Market) at $47.67 per share.$66,022
23-Feb-10HARRIS MICHAEL
Officer
400DirectPurchase at $47.50 per share.$19,000
23-Feb-10HARVEY DAVID R
Director
3,810DirectDisposition (Non Open Market) at $47.78 per share.$182,041
17-Feb-10TURZA CARL S
Officer
600DirectAcquisition (Non Open Market) at $48.61 per share.$29,166
17-Feb-10RAU DOUGLAS
Officer
600DirectAcquisition (Non Open Market) at $48.61 per share.$29,166
17-Feb-10WALTON STEVE
Officer
600DirectAcquisition (Non Open Market) at $48.61 per share.$29,166
17-Feb-10GREEN ERIC MARK
Other
600DirectAcquisition (Non Open Market) at $48.61 per share.$29,166
17-Feb-10SMOLLER DAVID ADAM
Officer
600DirectAcquisition (Non Open Market) at $48.61 per share.$29,166
17-Feb-10HUMMEL LARRY M
Other
600DirectAcquisition (Non Open Market) at $48.61 per share.$29,166
17-Feb-10COTTIER GILLES
Officer
1,650DirectAcquisition (Non Open Market) at $48.61 per share.$80,206
17-Feb-10JULIEN DAVID
Officer
1,650DirectAcquisition (Non Open Market) at $4861 per share.$8,020,650
17-Feb-10WICKS FRANK
Officer
1,650DirectAcquisition (Non Open Market) at $48.61 per share.$80,206
17-Feb-10VAN DEN DOOL GERRIT
Officer
600DirectAcquisition (Non Open Market) at $48.61 per share.$29,166
17-Feb-10NAGARKATTI JAI
Officer
5,625DirectAcquisition (Non Open Market) at $48.61 per share.$273,431
17-Feb-10MILLER KAREN J
Officer
600DirectAcquisition (Non Open Market) at $48.61 per share.$29,166
17-Feb-10RICHTER KIRK A
Officer
600DirectAcquisition (Non Open Market) at $48.61 per share.$29,166
17-Feb-10HARRIS MICHAEL
Officer
300DirectAcquisition (Non Open Market) at $48.61 per share.$14,583
16-Feb-10GREEN ERIC MARK
Other
5,000DirectOption Exercise at $25.86 per share.$129,300
16-Feb-10GREEN ERIC MARK
Other
5,000DirectSale at $48.50 per share.$242,500
16-Feb-10HARRIS MICHAEL
Officer
1,617DirectStatement of OwnershipN/A
7-Jan-10CHURCH GEORGE
Director
1,200DirectAcquisition (Non Open Market) at $50.59 per share.$60,708
7-Jan-10BERGMAN REBECCA M
Director
1,200DirectAcquisition (Non Open Market) at $50.59 per share.$60,708
7-Jan-10NASH AVI M
Director
1,200DirectAcquisition (Non Open Market) at $50.59 per share.$60,708
7-Jan-10SEAR TIMOTHY R G
Director
1,200DirectAcquisition (Non Open Market) at $50.59 per share.$60,708
7-Jan-10PAUL STEVEN M
Director
1,200DirectAcquisition (Non Open Market) at $50.59 per share.$60,708
7-Jan-10TOAN BARRETT A
Director
1,200DirectAcquisition (Non Open Market) at $50.59 per share.$60,708
7-Jan-10MCCOLLUM LEE
Director
1,200DirectAcquisition (Non Open Market) at $50.59 per share.$60,708
7-Jan-10SPATZ D DEAN
Director
1,200DirectAcquisition (Non Open Market) at $50.59 per share.$60,708
7-Jan-10REINHARD J PEDRO
Director
1,200DirectAcquisition (Non Open Market) at $50.59 per share.$60,708
7-Jan-10HARVEY DAVID R
Director
1,200DirectAcquisition (Non Open Market) at $50.59 per share.$60,708
2-Dec-09TURZA CARL S
Officer
2,900DirectOption Exercise at $34.03 per share.$98,687
2-Dec-09TURZA CARL S
Officer
2,200DirectSale at $53.72 - $53.74 per share.$118,0002
2-Dec-09WICKS FRANK
Officer
22,200DirectOption Exercise at $25.32 per share.$562,104
2-Dec-09WICKS FRANK
Officer
22,200DirectSale at $54 - $54.12 per share.$1,200,0002
2-Dec-09WICKS FRANK
Officer
3,800DirectSale at $54.01 per share.$205,238
2-Dec-09KELLEY RODNEY
Officer
6,831DirectSale at $53.81 per share.$367,576
1-Dec-09PORWOLL JOE
Officer
100DirectDisposition (Non Open Market) at $53.95 per share.$5,395
30-Nov-09RICHTER KIRK A
Officer
500DirectAcquisition (Non Open Market) at $52.97 per share.$26,485
16-Nov-09KROSLEY KEVIN
Other
5,000DirectOption Exercise at $25.32 per share.$126,600
16-Nov-09KROSLEY KEVIN
Other
5,000DirectSale at $55.61 - $55.65 per share.$278,0002
13-Nov-09JULIEN DAVID
Officer
36,200DirectOption Exercise at $25.86 per share.$936,132
13-Nov-09JULIEN DAVID
Officer
36,200DirectSale at $55.07 per share.$1,993,534
11-Nov-09HUMMEL LARRY M
Other
30,000DirectOption Exercise at $25.32 per share.$759,600
11-Nov-09HUMMEL LARRY M
Other
28,600DirectSale at $55.06 - $55.21 per share.$1,577,0002
9-Nov-09ZIHLMANN JOSEF
Other
5,000DirectOption Exercise at $25.32 per share.$126,600
9-Nov-09ZIHLMANN JOSEF
Other
5,000DirectSale at $55.28 - $55.33 per share.$277,0002
5-Nov-09JULIEN DAVID
Officer
22,200DirectOption Exercise at $25.32 per share.$562,104
5-Nov-09JULIEN DAVID
Officer
36,200DirectSale at $54.13 - $54.54 per share.$1,967,0002
27-Oct-09JULIEN DAVID
Officer
20,000DirectOption Exercise at $25.32 per share.$506,400
27-Oct-09JULIEN DAVID
Officer
20,000DirectSale at $54.09 per share.$1,081,800
2-Oct-09CHURCH GEORGE
Director
N/ADirectStatement of OwnershipN/A
30-Sep-09MILLER GEORGE LLOYD
Officer
2,779DirectAcquisition (Non Open Market) N/A
30-Sep-09MILLER GEORGE LLOYD
Officer
N/ADirectStatement of OwnershipN/A
3-Sep-09GREEN ERIC MARK
Other
5,000DirectOption Exercise at $25.86 per share.$129,300
3-Sep-09GREEN ERIC MARK
Other
5,000DirectSale at $49.84 - $49.85 per share.$249,0002
31-Aug-09MILLER KAREN J
Officer
7,800DirectOption Exercise at $25.32 per share.$197,496
26-Aug-09MILLER KAREN J
Officer
20,189DirectOption Exercise at $25.32 per share.$511,185
26-Aug-09MILLER KAREN J
Officer
20,189DirectSale at $51.46 per share.$1,038,925
25-Aug-09MILLER KAREN J
Officer
2,011DirectOption Exercise at $25.32 per share.$50,918
25-Aug-09MILLER KAREN J
Officer
2,011DirectSale at $52.04 per share.$104,652
24-Aug-09WICKS FRANK
Officer
485DirectDisposition (Non Open Market) at $52.22 per share.$25,326
20-Aug-09SEAR TIMOTHY R G
Director
30,000DirectOption Exercise at $29.72 - $34.5 per share.$963,0002
13-Aug-09WICKS FRANK
Officer
20,000DirectOption Exercise at $25.32 per share.$506,400
13-Aug-09WICKS FRANK
Officer
20,000DirectSale at $52.37 - $52.56 per share.$1,049,0002
12-Aug-09JULIEN DAVID
Officer
6,853DirectOption Exercise at $18.25 per share.$125,067
12-Aug-09JULIEN DAVID
Officer
6,853DirectSale at $52.50 - $52.58 per share.$360,0002
7-Aug-09JULIEN DAVID
Officer
7,747DirectOption Exercise at $18.25 per share.$141,382
7-Aug-09JULIEN DAVID
Officer
7,747DirectSale at $52.50 - $52.51 per share.$407,0002
5-Aug-09HARVEY DAVID R
Director
5,000DirectSale at $51.86 per share.$259,300
5-Aug-09MILLER KAREN J
Officer
9,091DirectSale at $52.42 per share.$476,550
2-Jun-09RICHTER KIRK A
Officer
500DirectDisposition (Non Open Market) at $49.88 per share.$24,940
2-Jun-09COTTIER GILLES
Officer
700DirectSale at $49.15 per share.$34,405
29-May-09NAGARKATTI JAI
Officer
2,100DirectSale at $47.63 - $47.66 per share.$100,0002
27-May-09MILLER KAREN J
Officer
2,909DirectDisposition (Non Open Market) at $46.42 per share.$135,035
26-May-09MILLER KAREN J
Officer
7,400DirectOption Exercise at $18.25 per share.$135,050
20-May-09KROSLEY KEVIN
Other
5,000DirectOption Exercise at $25.32 per share.$126,600
20-May-09KROSLEY KEVIN
Other
5,000DirectSale at $46.65 - $46.68 per share.$233,0002
20-May-09ZIHLMANN JOSEF
Other
7,000DirectOption Exercise at $25.32 per share.$177,240
20-May-09ZIHLMANN JOSEF
Other
7,000DirectSale at $46.76 - $46.81 per share.$327,0002
18-May-09VAN DEN DOOL GERRIT
Other
10,000DirectOption Exercise at $25.32 per share.$253,200
18-May-09VAN DEN DOOL GERRIT
Other
10,000DirectSale at $45.38 - $45.4 per share.$454,0002
5-May-09HARVEY DAVID R
Director
600DirectDisposition (Non Open Market) at $45.04 per share.$27,024
4-May-09ZIHLMANN JOSEF
Other
3,000DirectOption Exercise at $25.32 per share.$75,960
4-May-09ZIHLMANN JOSEF
Other
3,000DirectSale at $44.97 per share.$134,910
13-Apr-09KANAN MICHAEL F
Officer
40DirectStatement of OwnershipN/A
20-Mar-09SPATZ D DEAN
Director
8,000DirectOption Exercise at $14.31 - $16.56 per share.$123,0002
4-Mar-09RICHTER KIRK A
Officer
6,600DirectOption Exercise at $13.44 per share.$88,704
4-Mar-09RICHTER KIRK A
Officer
6,600DirectSale at $33.74 per share.$222,684
3-Mar-09KELLEY RODNEY
Other
7,400DirectOption Exercise at $13.44 per share.$99,456
3-Mar-09KELLEY RODNEY
Other
7,400DirectSale at $33.69 - $33.7 per share.$249,0002
2-Mar-09NAGARKATTI JAI
Officer
720DirectDisposition (Non Open Market) at $34.69 per share.$24,976
27-Feb-09RICHTER KIRK A
Officer
3,400DirectOption Exercise at $13.44 per share.$45,696
27-Feb-09RICHTER KIRK A
Officer
3,400DirectSale at $36 - $36.09 per share.$123,0002
20-Feb-09HARVEY DAVID R
Director
2,270DirectDisposition (Non Open Market) at $37.29 per share.$84,648
18-Feb-09KROSLEY KEVIN
Officer
270DirectAcquisition (Non Open Market) at $37.56 per share.$10,141
18-Feb-09RAU DOUGLAS
Officer
540DirectAcquisition (Non Open Market) at $37.56 per share.$20,282
18-Feb-09WALTON STEVE
Officer
540DirectAcquisition (Non Open Market) at $37.56 per share.$20,282
18-Feb-09FELDKER DAVID P
Officer
540DirectAcquisition (Non Open Market) at $37.56 per share.$20,282
18-Feb-09GREEN ERIC MARK
Officer
540DirectAcquisition (Non Open Market) at $37.56 per share.$20,282
18-Feb-09ZIHLMANN JOSEF
Officer
540DirectAcquisition (Non Open Market) at $37.56 per share.$20,282
18-Feb-09SMOLLER DAVID ADAM
Officer
540DirectAcquisition (Non Open Market) at $37.56 per share.$20,282
18-Feb-09HUMMEL LARRY M
Officer
540DirectAcquisition (Non Open Market) at $37.56 per share.$20,282
18-Feb-09COTTIER GILLES
Officer
1,485DirectAcquisition (Non Open Market) at $37.56 per share.$55,776
18-Feb-09JULIEN DAVID
Officer
1,485DirectAcquisition (Non Open Market) at $37.56 per share.$55,776
18-Feb-09WICKS FRANK
Officer
1,485DirectAcquisition (Non Open Market) at $37.56 per share.$55,776
18-Feb-09VAN DEN DOOL GERRIT
Officer
540DirectAcquisition (Non Open Market) at $37.56 per share.$20,282
18-Feb-09NAGARKATTI JAI
Officer
3,712DirectAcquisition (Non Open Market) at $37.56 per share.$139,422
18-Feb-09KELLEY RODNEY
Officer
540DirectAcquisition (Non Open Market) at $37.56 per share.$20,282
18-Feb-09RICHTER KIRK A
Officer
540DirectAcquisition (Non Open Market) at $37.56 per share.$20,282
17-Feb-09PORWOLL JOE
Officer
540DirectAcquisition (Non Open Market) at $37.56 per share.$20,282
17-Feb-09MILLER KAREN J
Officer
540DirectAcquisition (Non Open Market) at $37.56 per share.$20,282
2-Jan-09TOAN BARRETT A
Director
1,200DirectAcquisition (Non Open Market) at $0 per share.N/A
2-Jan-09REINHARD J PEDRO
Director
1,200DirectAcquisition (Non Open Market) at $0 per share.N/A
2-Jan-09BERGMAN REBECCA M
Director
1,200DirectAcquisition (Non Open Market) at $0 per share.N/A
2-Jan-09NASH AVI M
Director
1,200DirectAcquisition (Non Open Market) at $0 per share.N/A
2-Jan-09SEAR TIMOTHY R G
Director
1,200DirectAcquisition (Non Open Market) at $0 per share.N/A
2-Jan-09PAUL STEVEN M
Director
1,200DirectAcquisition (Non Open Market) at $0 per share.N/A
2-Jan-09MCCOLLUM LEE
Director
1,200DirectAcquisition (Non Open Market) at $0 per share.N/A
2-Jan-09SPATZ D DEAN
Director
1,200DirectAcquisition (Non Open Market) at $0 per share.N/A
26-Nov-08WALTON STEVE
Officer
951DirectAcquisition (Non Open Market) at $40.98 per share.$38,971
25-Nov-08NAGARKATTI JAI
Officer
14,800DirectOption Exercise at $13.44 per share.$198,912
25-Nov-08NAGARKATTI JAI
Officer
4,816DirectDisposition (Non Open Market) at $41.29 per share.$198,852
17-Nov-08SACHDEV RAKESH
Officer
12,632DirectAcquisition (Non Open Market) N/A
17-Nov-08MILLER KAREN J
Officer
6,000DirectAcquisition (Non Open Market) N/A
17-Nov-08SACHDEV RAKESH
Officer
N/ADirectStatement of OwnershipN/A
12-Nov-08TURZA CARL S
Officer
400IndirectPurchase at $39 per share.$15,600
11-Nov-08PORWOLL JOE
Other
200DirectDisposition (Non Open Market) at $41.38 per share.$8,276
30-Oct-08SMOLLER DAVID ADAM
Other
2,000DirectOption Exercise at $28.56 per share.$57,120
28-Aug-08KEFFER RICHARD A
Officer
2,600DirectOption Exercise at $36.40 per share.$94,640
19-Aug-08HARVEY DAVID R
Director
180DirectAcquisition (Non Open Market) at $58.75 per share.$10,575
13-Aug-08HOGAN MICHAEL R
Officer
15,600DirectOption Exercise at $18.25 per share.$284,700
13-Aug-08HOGAN MICHAEL R
Officer
5,000DirectOption Exercise at $18.25 per share.$91,250
13-Aug-08HOGAN MICHAEL R
Officer
15,600DirectSale at $61.98 - $62.13 per share.$968,0002
13-Aug-08HOGAN MICHAEL R
Officer
5,000DirectSale at $62.14 - $62.32 per share.$311,0002
5-Aug-08SMOLLER DAVID ADAM
Other
1,000DirectSale at $61 per share.$61,000
5-Aug-08HARVEY DAVID R
Director
24,562DirectOption Exercise at $28.83 per share.$708,122
5-Aug-08HARVEY DAVID R
Director
15,438DirectOption Exercise at $28.83 per share.$445,077
5-Aug-08HARVEY DAVID R
Director
24,562DirectSale at $60.76 - $60.9 per share.$1,494,0002
5-Aug-08HARVEY DAVID R
Director
15,438DirectSale at $60.90 - $61.06 per share.$941,0002
5-Aug-08NAGARKATTI JAI
Officer
25,200DirectOption Exercise at $13.44 per share.$338,688
5-Aug-08NAGARKATTI JAI
Officer
25,200DirectSale at $61.50 - $61.69 per share.$1,552,0002
1-Aug-08SMOLLER DAVID ADAM
Other
3,000DirectOption Exercise at $28.83 per share.$86,490
1-Aug-08SMOLLER DAVID ADAM
Other
3,000DirectSale at $60 per share.$180,000
30-Jul-08HUMMEL LARRY M
Other
5,514DirectSale at $60.90 - $60.98 per share.$336,0002
30-Jul-08FELDKER DAVID P
Other
2,500DirectOption Exercise at $28.83 per share.$72,075
30-Jul-08FELDKER DAVID P
Other
2,500DirectSale at $61.38 - $61.45 per share.$154,0002
30-Jul-08PORWOLL JOE
Other
5,400DirectOption Exercise at $18.25 per share.$98,550
30-Jul-08PORWOLL JOE
Other
5,400DirectSale at $61 per share.$329,400
29-Jul-08HARVEY DAVID R
Director
5,000DirectSale at $60 per share.$300,000
29-Jul-08FELDKER DAVID P
Other
1,000DirectOption Exercise at $28.66 per share.$28,660
29-Jul-08FELDKER DAVID P
Other
1,000DirectSale at $60.17 - $60.18 per share.$60,0002
29-Jul-08HOGAN MICHAEL R
Officer
16,000DirectOption Exercise at $14.63 per share.$234,080
29-Jul-08HOGAN MICHAEL R
Officer
34,000DirectOption Exercise at $18.25 per share.$620,500
29-Jul-08HOGAN MICHAEL R
Officer
16,000DirectSale at $59.82 - $60.03 per share.$959,0002
29-Jul-08HOGAN MICHAEL R
Officer
34,000DirectSale at $59.81 - $60.21 per share.$2,040,0002
28-Jul-08WICKS FRANK
Officer
24,000DirectOption Exercise at $28.66 per share.$687,840
28-Jul-08WICKS FRANK
Officer
13,200DirectOption Exercise at $18.25 - $25.32 per share.N/A
28-Jul-08WICKS FRANK
Officer
15,600DirectOption Exercise at $18.25 per share.$284,700
28-Jul-08WICKS FRANK
Officer
24,000DirectSale at $58.92 - $59.1 per share.$1,416,0002
28-Jul-08WICKS FRANK
Officer
13,200DirectSale at $59.09 - $59.38 per share.$782,0002
28-Jul-08WICKS FRANK
Officer
15,600DirectSale at $59.18 - $59.6 per share.$926,0002
27-May-08TURZA CARL S
Officer
5,800DirectOption Exercise at $34.03 per share.$197,374
27-May-08TURZA CARL S
Officer
5,800DirectSale at $56.88 - $56.98 per share.$330,0002
19-May-08VUILLEUMYER HERBERT
Other
12,000DirectOption Exercise at $18.25 per share.$219,000
19-May-08VUILLEUMYER HERBERT
Other
12,000DirectSale at $60 - $60.04 per share.$720,0002
6-May-08BERGMAN REBECCA M
Director
N/ADirectStatement of OwnershipN/A
5-May-08SPATZ D DEAN
Director
24,000DirectOption Exercise at $19.94 - $20.06 per share.$480,0002
5-May-08SPATZ D DEAN
Director
24,000DirectSale at $56.77 per share.$1,362,480
2-May-08ONEIL WILLIAM C
Director
24,000DirectOption Exercise at $19.94 - $20.06 per share.$480,0002
2-May-08ONEIL WILLIAM C
Director
24,000DirectSale at $57.36 per share.$1,376,640
8-Apr-08SMOLLER DAVID ADAM
Other
2,000DirectOption Exercise at $28.56 per share.$57,120
27-Mar-08BASTIAN HELGE
Other
N/ADirectStatement of OwnershipN/A
Data provided by EDGAR Online
* = Where indicated, some values are estimates.
1 = Potential proceeds estimated by the filer.
2 = Estimated based on the average of multiple prices reported.
3 = Multiple dates reported. Most recent date shown.
All Major Holders - Insider Roster

Add to My Portfolio Add to Portfolio    Set Alert Set Alert    Email to a Friend Email to a Friend
Get Insider Transactions for Another Symbol: Symbol Lookup
Today's SEC FilingsMergers & Acquisitions