A.R.T. Advisors, LLC - WESTPORT FUEL SYSTEMS INC ownership

WESTPORT FUEL SYSTEMS INC's ticker is WPRT and the CUSIP is 960908309. A total of 96 filers reported holding WESTPORT FUEL SYSTEMS INC in Q4 2018. The put-call ratio across all filers is 1.92 and the average weighting 0.1%.

Quarter-by-quarter ownership
A.R.T. Advisors, LLC ownership history of WESTPORT FUEL SYSTEMS INC
ValueSharesWeighting
Q2 2020$21,000
-89.9%
17,100
-80.5%
0.03%
+210.0%
Q4 2019$208,000
+177.3%
87,793
+217.1%
0.01%
+150.0%
Q3 2019$75,000
+87.5%
27,682
+87.3%
0.00%
+100.0%
Q2 2019$40,000
-52.9%
14,782
-76.8%
0.00%
-60.0%
Q4 2018$85,000
-14.1%
63,772
+40.1%
0.01%
+25.0%
Q1 2018$99,000
-46.5%
45,505
-7.9%
0.00%
-50.0%
Q4 2017$185,000
+140.3%
49,395
-38.6%
0.01%
+100.0%
Q1 2017$77,000
-30.6%
80,502
+44.5%
0.00%
-20.0%
Q4 2015$111,000
-83.5%
55,706
-69.1%
0.01%
-80.0%
Q4 2014$674,000
-77.0%
180,481
-10.9%
0.02%
-83.9%
Q1 2014$2,933,000
-12.2%
202,603
+18.9%
0.16%
-12.9%
Q4 2013$3,342,000
+315.2%
170,460
+411.2%
0.18%
+304.5%
Q3 2013$805,00033,3470.04%
Other shareholders
WESTPORT FUEL SYSTEMS INC shareholders Q4 2018
NameSharesValueWeighting ↓
AMH Equity Ltd 2,000,000$1,743,0002.63%
Trellus Management Company, LLC 630,000$549,0000.67%
GRACE & WHITE INC /NY 3,137,756$2,735,0000.59%
AWM Investment Company, Inc. 3,832,047$3,340,0000.51%
S&T BANK/PA 2,047,925$1,785,0000.34%
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. 314,288$274,0000.08%
FIRETHORN WEALTH PARTNERS, LLC 40,000$35,0000.03%
GILL CAPITAL PARTNERS, LLC 60,000$52,0000.03%
MARATHON CAPITAL MANAGEMENT 75,000$65,0000.02%
LYELL WEALTH MANAGEMENT, LP 64,500$56,0000.01%
View complete list of WESTPORT FUEL SYSTEMS INC shareholders