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Monday, December 7, 2009, 4:58PM ET - U.S. Markets Closed. Dow Up 0.01% Nasdaq Down 0.22%
Sigma-Aldrich Corporation (SIAL)At 4:00PM ET: 52.64  Down 0.24 (0.45%)  
Upgrades & Downgrades History
UPGRADES & DOWNGRADES HISTORY 
DateResearch FirmActionFromTo
6-Nov-09Jefferies & CoInitiatedHold
4-Feb-09LongbowDowngradeBuyNeutral
18-Apr-08Robert W. BairdDowngradeOutperformNeutral
26-Sep-07Banc of America SecInitiatedNeutral
27-Oct-06First Analysis SecDowngradeOverweightEqual-Weight
11-Oct-06Banc of America SecDowngradeBuyNeutral
17-Apr-06Banc of America SecUpgradeNeutralBuy
16-Nov-05Goldman SachsUpgradeUnderperformIn-Line
10-May-05UBSInitiatedNeutral
20-Jan-05Robert W. BairdUpgradeNeutralOutperform
10-Dec-04Banc of America SecInitiatedNeutral
22-Oct-04Buckingham ResearchDowngradeAccumulateNeutral
23-Apr-04Buckingham ResearchUpgradeNeutralAccumulate
14-Jan-04McDonald InvstUpgradeHoldBuy
5-Jan-04Banc of America SecDowngradeBuyNeutral
23-Oct-03UBSDowngradeNeutralReduce
18-Jun-03McDonald InvstDowngradeBuyHold
8-May-03Robert W. BairdDowngradeOutperformNeutral
19-Feb-03McDonald InvstInitiatedBuy
13-Feb-03UBS WarburgUpgradeReduceNeutral
24-Oct-02Salomon Smth BrnyDowngradeOutperformIn-line
8-Oct-02Salomon Smth BrnyUpgradeUnderperformOutperform
5-Sep-02Merrill LynchDowngradeNT BuyNT Neutral
5-Sep-02Salomon Smth BrnyDowngradeBuyNeutral
23-Aug-02Lehman BrothersDowngradeOverweightEqual-weight
24-Jul-02Lehman BrothersUpgradeMkt PerformStrong Buy
24-Apr-02Banc of America SecUpgradeBuyStrong Buy
24-Apr-02Robert W. BairdUpgradeMkt PerformStrong Buy
27-Feb-02CSFBInitiatedBuy
9-Jan-02Thomas WeiselInitiatedBuy
30-Oct-01Banc of America SecUpgradeMkt PerformBuy
24-Oct-01Deutsche Bc Alex. BrDowngradeStrong BuyMkt Perform
10-Sep-01Salomon Smth BrnyInitiatedBuy
16-Jul-01Deutsche Bc Alex. BrUpgradeBuyStrong Buy
22-Mar-01First Analysis SecDowngradeAccumulateNeutral
6-Oct-00Deutsche Bc Alex. BrDowngradeStrong BuyBuy
14-Sep-00Deutsche Bc Alex. BrInitiatedStrong Buy
31-Jul-00Stifel, NicolausDowngradeStrong BuyAccumulate
18-Apr-00Lehman BrothersDowngradeBuyNeutral
17-Feb-00Robert W. BairdDowngradeLT Mkt OutperformLT Mkt Perform
17-Feb-00Deutsche Bc Alex. BrDowngradeStrong BuyBuy
13-Dec-99Banc of America SecInitiatedMarket Perform
23-Nov-99Salomon Smth BrnyUpgradeNeutralOutperform
23-Nov-99Merrill LynchUpgradeNT NeutralNT Accum
15-Sep-99Mrgn Stnly Dn WttrInitiatedNeutral
18-Mar-99PaineWebberInitiatedNeutral
24-Jul-98AG EdwardsDowngradeAccumulateMaintain
18-Mar-98Salomon Smth BrnyDowngradeBuyOutperform
18-Mar-98AG EdwardsUpgradeMaintainAccumulate
18-Feb-98Merrill LynchDowngradeAccumulateNeutral

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