Century Aluminum Company
US ˙ NasdaqGS ˙ US1564311082

SecurityCENX / Century Aluminum Company
InsiderAndrew G Michelmore
This page shows the track record and history of Michelmore Andrew G insider trades in Century Aluminum Company. The SEC defines Insiders as officers, directors, or significant investors (greater than 10% ownership) in a company. It is illegal for insiders to make trades in their companies based on material, non-public information ("MNPI"). This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4.
Insider Purchases - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made by Andrew G Michelmore in CENX / Century Aluminum Company. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
2020-03-10 3,000 4.4100 3,000 4.4100 13,230 365 18.4100 42,000 317.46
2019-06-13 5,000 5.7800 5,000 5.7800 28,900
2018-10-29 5,000 7.8700 5,000 7.8700 39,350

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

CENX / Century Aluminum Company Insider Trades
Insider Sales - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by Andrew G Michelmore in CENX / Century Aluminum Company. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

CENX / Century Aluminum Company Insider Trades
Insider Transaction History
File
Date
Trade
Date
Form Insider Ticker Security Title Code 10b5-1 Direct Exercise
Price
Unit
Price
Units
Changed
Value
Changed (1K)
Remaining
Options
Remaining
Shares
2025-06-18 2025-06-16 4 Michelmore Andrew G CENX Common Stock F - Taxes D 17.3600 -2,333 -41 89,089
2025-06-18 2025-06-16 4 Michelmore Andrew G CENX Common Stock A - Award D 7,778 91,422
2024-06-05 2024-06-03 4 Michelmore Andrew G CENX Common Stock F - Taxes D 17.7100 -2,121 -38 83,644
2024-06-05 2024-06-03 4 Michelmore Andrew G CENX Common Stock A - Award D 7,070 85,765
2023-06-07 2023-06-05 4 Michelmore Andrew G CENX Common Stock F - Taxes D 8.5100 -4,448 -38 78,695
2023-06-07 2023-06-05 4 Michelmore Andrew G CENX Common Stock A - Award D 14,825 83,143
2022-06-16 2022-06-14 4 Michelmore Andrew G CENX Common Stock F - Taxes D 10.4300 -2,808 -29 68,318
2022-06-16 2022-06-14 4 Michelmore Andrew G CENX Common Stock A - Award D 9,358 71,126
2021-06-16 2021-06-15 4 Michelmore Andrew G CENX Common Stock F - Taxes D 13.4200 -2,321 -31 61,768
2021-06-16 2021-06-15 4 Michelmore Andrew G CENX Common Stock A - Award D 7,737 64,089
2020-06-11 2020-06-09 4 Michelmore Andrew G CENX Common Stock F - Taxes D 7.8300 -5,466 -43 56,352
2020-06-11 2020-06-09 4 Michelmore Andrew G CENX Common Stock A - Award D 18,220 61,818
2020-03-11 2020-03-10 4 Michelmore Andrew G CENX Common Stock P - Purchase D 4.4100 3,000 13 43,598
2019-06-20 2019-06-13 4 Michelmore Andrew G CENX Common Stock P - Purchase D 5.7800 5,000 29 40,598
2019-06-05 2019-06-04 4 Michelmore Andrew G CENX Common Stock F - Taxes D 5.6300 -3,879 -22 35,598
2019-06-05 2019-06-04 4 Michelmore Andrew G CENX Common Stock A - Award D 12,929 39,477
2018-10-31 2018-10-29 4 Michelmore Andrew G CENX Common Stock P - Purchase D 7.8700 5,000 39 26,548
2018-09-19 3 Michelmore Andrew G CENX Common Stock D 33,326
2018-09-19 3 Michelmore Andrew G CENX Common Stock D 33,326
2018-09-19 3 Michelmore Andrew G CENX Common Stock D 33,326
2018-09-19 2018-09-17 4 Michelmore Andrew G CENX Common Stock F - Taxes D 11.7800 -1,766 -21 21,548
2018-09-19 2018-09-17 4 Michelmore Andrew G CENX Common Stock A - Award D 5,885 23,314
2015-09-02 2015-08-31 4 Michelmore Andrew G CENX Common Stock F - Taxes D 5.6000 -2,419 -14 27,429
2014-09-10 2014-09-09 4 Michelmore Andrew G CENX Common Stock A - Award D 3,495 29,848
2014-09-10 2014-09-08 4 Michelmore Andrew G CENX Common Stock F - Taxes D 28.4700 -2,702 -77 26,353
2013-09-26 2013-09-24 4 Michelmore Andrew G CENX Common Stock A - Award D 9,004 29,055
2013-09-23 2013-09-19 4 Michelmore Andrew G CENX Common Stock D - Sale to Issuer D -3,324 20,051
2012-09-21 2012-09-19 4 Michelmore Andrew G CENX Common Stock A - Award D 11,078 23,375
2010-06-11 3 Michelmore Andrew G CENX Common Stock D 0
P
Pembelian sekuritas non-derivatif atau derivatif di pasar terbuka atau secara pribadi.
S
Penjualan terbuka atau penjualan pribadi atas sekuritas non-derivatif atau derivatif.
A
Hibah, penghargaan, atau perolehan sekuritas lainnya dari perusahaan (seperti opsi)
C
Konversi turunan
D
Penjualan atau pengalihan sekuritas kembali ke perusahaan.
F
Pembayaran harga pelaksanaan atau kewajiban pajak menggunakan sebagian sekuritas yang diterima dari perusahaan.
G
Pemberian sekuritas oleh atau kepada orang dalam.
K
Swap ekuitas dan transaksi lindung nilai serupa
M
Pelaksanaan atau konversi sekuritas derivatif yang diterima dari perusahaan (seperti opsi)
V
Transaksi yang dilaporkan secara sukarela pada Formulir 4.
J
Lainnya (disertai dengan catatan kaki yang menjelaskan transaksi tersebut)