UBS OCONNOR LLC - SIENTRA INC ownership

SIENTRA INC's ticker is SIEN and the CUSIP is 82621J105. A total of 54 filers reported holding SIENTRA INC in Q2 2015. The put-call ratio across all filers is - and the average weighting 1.2%.

Quarter-by-quarter ownership
UBS OCONNOR LLC ownership history of SIENTRA INC
ValueSharesWeighting
Q3 2015$406,000,000
-62.7%
40,000
-7.3%
0.01%
-57.9%
Q2 2015$1,088,000,000
-17.1%
43,129
-36.9%
0.02%
-32.1%
Q1 2015$1,313,000,000
+2.9%
68,400
-10.0%
0.03%
+27.3%
Q4 2014$1,276,000,00076,0000.02%
Other shareholders
SIENTRA INC shareholders Q2 2015
NameSharesValueWeighting ↓
Abingworth LLP 1,673,589$1,071,0000.37%
NEEDHAM INVESTMENT MANAGEMENT LLC 2,320,000$1,485,0000.29%
X-Square Capital, LLC 265,503$170,0000.11%
AWM Investment Company, Inc. 799,766$512,0000.08%
GSA CAPITAL PARTNERS LLP 813,884$521,0000.07%
Parkman Healthcare Partners LLC 373,586$239,0000.07%
Birchview Capital, LP 40,000$26,0000.02%
Matisse Capital 15,818$10,0000.01%
Frisch Financial Group, Inc. 42,000$27,0000.01%
HighMark Wealth Management LLC 17,300$11,0000.01%
View complete list of SIENTRA INC shareholders