Simplex Trading’s Century Aluminum CENX Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$1.53M Sell
26,000
-26,800
-51% -$1.34M ﹤0.01% 2070
2025
Q4
$2.07M Buy
52,800
+29,200
+124% +$912K ﹤0.01% 1952
2025
Q3
$692K Sell
23,600
-57,400
-71% -$1.3M ﹤0.01% 3440
2025
Q2
$1.46M Buy
81,000
+50,400
+165% +$856K ﹤0.01% 2400
2025
Q1
$567K Buy
30,600
+10,100
+49% +$194K ﹤0.01% 3263
2024
Q4
$373K Buy
20,500
+3,800
+23% +$74.7K ﹤0.01% 3841
2024
Q3
$271K Buy
16,700
+11,100
+198% +$168K ﹤0.01% 4229
2024
Q2
$93K Buy
5,600
+2,200
+65% +$37.5K ﹤0.01% 5445
2024
Q1
$52K Sell
3,400
-230,500
-99% -$2.59M ﹤0.01% 6219
2023
Q4
$2.84M Buy
233,900
+174,000
+290% +$1.37M ﹤0.01% 2057
2023
Q3
$430K Buy
59,900
+11,400
+24% +$91.8K ﹤0.01% 3566
2023
Q2
$422K Sell
48,500
-700
-1% -$6.08K ﹤0.01% 3482
2023
Q1
$492K Buy
49,200
+35,900
+270% +$372K ﹤0.01% 3281
2022
Q4
$108K Sell
13,300
-14,300
-52% -$108K ﹤0.01% 4973
2022
Q3
$145K Sell
27,600
-12,000
-30% -$91.2K ﹤0.01% 5017
2022
Q2
$291K Sell
39,600
-21,000
-35% -$326K ﹤0.01% 4137
2022
Q1
$1.59M Buy
60,600
+26,400
+77% +$556K ﹤0.01% 2343
2021
Q4
$566K Sell
34,200
-12,700
-27% -$186K ﹤0.01% 3633
2021
Q3
$591K Buy
46,900
+10,900
+30% +$137K ﹤0.01% 3841
2021
Q2
$464K Buy
+36,000
New +$518K ﹤0.01% 4280
2021
Q1
Sell
-39
Closed -$43K 8919
2020
Q4
$43K Buy
39
+22
+129% +$200 ﹤0.01% 6331
2020
Q3
$12K Sell
17
-83
-83% -$723 ﹤0.01% 6691
2020
Q2
$71K Sell
100
-29
-22% -$153 ﹤0.01% 5154
2020
Q1
$46K Buy
129
+116
+892% +$649 ﹤0.01% 5209
2019
Q4
$9K Sell
13
-157
-92% -$1.09K ﹤0.01% 6418
2019
Q3
$112K Buy
170
+37
+28% +$245 ﹤0.01% 4199
2019
Q2
$91K Sell
133
-38
-22% -$282 ﹤0.01% 4281
2019
Q1
$151K Sell
171
-215
-56% -$1.86K ﹤0.01% 3907
2018
Q4
$282K Buy
386
+261
+209% +$2.37K ﹤0.01% 2784
2018
Q3
$149K Buy
125
+18
+17% +$231 ﹤0.01% 3980
2018
Q2
$168K Sell
107
-29
-21% -$491 ﹤0.01% 3693
2018
Q1
$30K Buy
+136
New +$2.84K ﹤0.01% 2932
2017
Q4
Sell
-38
Closed -$4K 6031
2017
Q3
$4K Sell
38
-135
-78% -$2.33K ﹤0.01% 4530
2017
Q2
$8K Buy
+173
New +$2.41K ﹤0.01% 4146
2017
Q1
Sell
-335
Closed -$4K 6187
2016
Q4
$4K Buy
335
+3
+0.9% +$26 ﹤0.01% 4495
2016
Q3
$14K Sell
332
-119
-26% -$813 ﹤0.01% 3305
2016
Q2
$29K Buy
451
+422
+1,455% +$2.96K ﹤0.01% 2550
2016
Q1
$7K Sell
29
-268
-90% -$1.48K ﹤0.01% 3777
2015
Q4
$35K Buy
297
+256
+624% +$1.1K ﹤0.01% 2202
2015
Q3
$54K Buy
41
+19
+86% +$133 ﹤0.01% 1929
2015
Q2
$7K Sell
22
-3
-12% -$38 ﹤0.01% 3343
2015
Q1
$14K Sell
25
-30
-55% -$604 ﹤0.01% 2608
2014
Q4
$10K Buy
+55
New +$1.42K ﹤0.01% 2579

Other funds holding CENX

Simplex Trading's CENX Position: Q3 2025 in Review

Simplex Trading sold out of Century Aluminum (CENX) in Q3 2025, closing a stake of 4,290 shares — an estimated $97.2K sold.

Simplex Trading first reported a position in CENX in Q1 2015 and held it in 30 quarters. The position peaked at $1.13M in Q4 2017. 255 funds tracked by Wall St. Rank hold CENX as of Q3 2025.

  • Simplex Trading reported no remaining Century Aluminum position as of Q3 2025 after selling out during the quarter.
  • Simplex Trading sold 4,290 Century Aluminum shares in Q3 2025, an estimated $97.2K.
  • Simplex Trading first reported a position in Century Aluminum in Q1 2015 and held it in 30 quarters.
  • Simplex Trading's Century Aluminum position peaked at $1.13M in Q4 2017.
  • 255 funds tracked by Wall St. Rank held Century Aluminum as of Q3 2025.

Based on Simplex Trading's 13F filing for Q3 2025, filed 12 Nov 2025.