SHAPIRO ROBERT N - SIGMA ALDRICH CORP ownership

SIGMA ALDRICH CORP's ticker is SIAL and the CUSIP is 826552101. A total of 524 filers reported holding SIGMA ALDRICH CORP in Q1 2014. The put-call ratio across all filers is 0.23 and the average weighting 0.3%.

Quarter-by-quarter ownership
SHAPIRO ROBERT N ownership history of SIGMA ALDRICH CORP
ValueSharesWeighting
Q4 2014$115,000
+5.5%
847
+5.9%
0.02%
+9.5%
Q3 2014$109,000
+34.6%
8000.0%0.02%
+40.0%
Q2 2014$81,000
+8.0%
8000.0%0.02%
+7.1%
Q1 2014$75,0000.0%8000.0%0.01%
+7.7%
Q4 2013$75,000
+8.7%
8000.0%0.01%
+8.3%
Q3 2013$69,000
+7.8%
8000.0%0.01%
-7.7%
Q2 2013$64,0008000.01%
Other shareholders
SIGMA ALDRICH CORP shareholders Q1 2014
NameSharesValueWeighting ↓
Burren Capital Advisors Ltd 35,000$4,839,00017.52%
SHAYNE & JACOBS, LLC 114,052$15,768,00012.23%
Cheyne Capital Management (UK) LLP 199,237$27,547,0006.64%
REIK & CO., LLC 143,793$19,879,0006.44%
Chicago Capital Management, LLC 103,300$14,281,0006.00%
Kellner Capital, LLC 62,150$8,592,0005.63%
MCDANIEL TERRY & CO 164,215$22,703,0005.55%
GLAZER CAPITAL, LLC 261,530$36,157,0005.45%
ALPINE ASSOCIATES MANAGEMENT INC. 1,073,600$148,426,0005.33%
COWEN INC. 430,993$59,585,0004.93%
View complete list of SIGMA ALDRICH CORP shareholders