SIMPLEX TRADING, LLC - CENTURY ALUM CO ownership

CENTURY ALUM CO's ticker is CENX and the CUSIP is 156431108. A total of 133 filers reported holding CENTURY ALUM CO in Q4 2020. The put-call ratio across all filers is 0.66 and the average weighting 0.0%.

Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of CENTURY ALUM CO
ValueSharesWeighting
Q3 2023$61
-12.9%
8,601
+7.0%
0.00%
Q2 2023$70
+337.5%
8,039
+292.7%
0.00%
Q4 2022$16
-100.0%
2,047
-90.9%
0.00%
Q3 2022$118,000
-29.3%
22,437
-1.3%
0.00%
Q2 2022$167,000
-77.6%
22,730
-19.8%
0.00%
-100.0%
Q1 2022$745,000
+228.2%
28,328
+105.9%
0.00%
Q4 2021$227,000
-39.0%
13,759
-53.5%
0.00%
Q3 2021$372,000
-11.4%
29,573
-9.4%
0.00%
Q2 2021$420,00032,650
+116.7%
0.00%
Q1 2021$0
-100.0%
15,069
+48.3%
0.00%
Q4 2020$112,000
-7.4%
10,161
-40.5%
0.00%
Q3 2020$121,000
-16.0%
17,063
-15.7%
0.00%
Q2 2020$144,000
+414.3%
20,250
+154.0%
0.00%
Q1 2020$28,000
-88.6%
7,972
-75.6%
0.00%
-100.0%
Q4 2019$245,000
+744.8%
32,718
+647.8%
0.00%
Q3 2019$29,000
-75.2%
4,375
-74.4%
0.00%
Q2 2019$117,000
+134.0%
17,069
+200.9%
0.00%
Q1 2019$50,000
-78.8%
5,673
-82.5%
0.00%
-100.0%
Q4 2018$236,000
+353.8%
32,417
+638.1%
0.00%
Q3 2018$52,000
-84.5%
4,392
-79.5%
0.00%
-100.0%
Q2 2018$336,000
+71.4%
21,376
+79.7%
0.00%
-88.9%
Q1 2018$196,000
-82.6%
11,893
-79.3%
0.01%
-81.6%
Q4 2017$1,127,000
+336.8%
57,401
+245.8%
0.05%
+345.5%
Q2 2017$258,000
+65.4%
16,600
-9.4%
0.01%
+22.2%
Q4 2016$156,000
+766.7%
18,318
+534.3%
0.01%
+800.0%
Q2 2016$18,000
-21.7%
2,888
+30.6%
0.00%
-50.0%
Q2 2015$23,000
+27.8%
2,212
+69.1%
0.00%0.0%
Q1 2015$18,0001,3080.00%
Other shareholders
CENTURY ALUM CO shareholders Q4 2020
NameSharesValueWeighting ↓
Mountaineer Partners Management, LLC 2,035,868$14,637,8919.38%
Aldebaran Capital, LLC 67,880$488,0570.50%
Jade Capital Advisors, LLC 75,000$539,2500.48%
GSA CAPITAL PARTNERS LLP 277,120$1,9920.17%
OCCUDO QUANTITATIVE STRATEGIES LP 180,538$1,298,0680.17%
DARK FOREST CAPITAL MANAGEMENT LP 201,567$1,449,2670.11%
PDT Partners, LLC 120,006$862,8430.11%
HUNTER ASSOCIATES INVESTMENT MANAGEMENT LLC 71,500$5140.10%
Bridgefront Capital, LLC 20,497$147,3730.10%
BRIDGEWAY CAPITAL MANAGEMENT, LLC 591,300$4,251,4470.10%
View complete list of CENTURY ALUM CO shareholders