CENX — CENTURY ALUMINUM CO
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
Measured signals that fired on CENX
| date | signal | measured base rate |
|---|---|---|
| 2026-08-13 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-08-05 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-07-21 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-07-16 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-06-16 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-05-28 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-06-15 | Michelmore Andrew G Director | Shares withheld for tax | 652 | 54.55 | 35.6K |
| 2026-06-15 | Berntzen Jarl Director | Grant or award | 2.2K | 0.00 | 0 |
| 2026-06-15 | Bush Jennifer Mary Director | Grant or award | 2.2K | 0.00 | 0 |
| 2026-06-15 | Michelmore Andrew G Director | Grant or award | 2.2K | 0.00 | 0 |
| 2026-06-15 | GLASSER ERROL Director | Grant or award | 2.2K | 0.00 | 0 |
| 2026-06-15 | Olivier Tamla A Director | Grant or award | 2.2K | 0.00 | 0 |
| 2026-03-25 | Trpkovski Peter A EVP, CFO | Open-market sale | 16.7K | 50.51 | 845.5K |
| 2026-03-16 | Gary Jesse E President and CEO | Open-market sale 10b5-1 plan | 150.0K | 55.47 | 8.3M |
| 2026-03-12 | Calloway Kenneth L SVP, Human Resources | Open-market sale | 18.0K | 58.00 | 1.0M |
| 2026-03-11 | Hoffman Robert F SVP, IT and CAO | Open-market sale | 10.5K | 56.51 | 595.0K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| Glencore plc | 1.7B | 29.7M |
| BlackRock, Inc. | 528.8M | 9.0M |
| STATE STREET CORP | 273.9M | 4.7M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 248.9M | 4.2M |
| Sourcerock Group LLC | 157.7M | 2.7M |
| FMR LLC | 156.1M | 2.7M |
| VANGUARD CAPITAL MANAGEMENT LLC | 151.8M | 2.6M |
| DIMENSIONAL FUND ADVISORS LP | 128.6M | 2.2M |
| Invesco Ltd. | 121.9M | 2.1M |
| MILLENNIUM MANAGEMENT LLC | 116.7M | 2.0M |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| SCHEDULE 13G | 2026-08-07 | — | on EDGAR ↗ |
| 10-Q | 2026-08-06 | 2026-06-30 | on EDGAR ↗ |
| 8-K | 2026-08-06 | 2026-08-06 | on EDGAR ↗ |
| SCHEDULE 13G/A | 2026-07-27 | — | on EDGAR ↗ |
| 4 | 2026-06-17 | 2026-06-15 | on EDGAR ↗ |
| 4 | 2026-06-17 | 2026-06-15 | on EDGAR ↗ |
| 4 | 2026-06-17 | 2026-06-15 | on EDGAR ↗ |
| 4 | 2026-06-17 | 2026-06-15 | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Trump Could Reportedly Cut Canadian Auto Tariffs to 15%, Aluminum and Steel to 25%: NUE, STLD, CENX in Focus (UPDATED) · 2026-08-20 · benzinga
- Why is Century Aluminum stock sliding today? · 2026-08-19
- Century Aluminum (CENX) Q2 2026 Earnings Call Transcript · 2026-08-14
- Century Aluminum Q2 Earnings Lag Estimates, Sales Rise Y/Y - TradingView · 2026-08-13 · TradingView
- Century Aluminum initiated Buy at UBS as best leverage to sustainably higher U.S. regional premium · 2026-08-11
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