Glencore PLC
· Reduced
Change
−6.3M
Date
Q1 2026
CE
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Glencore PLC
· Reduced
Change
−6.3M
Date
Q1 2026
|
Glencore PLC | Reduced· Q1 2026 | – | −6.3M | – | Q1 2026 | |||||
|
FMR LLC
· Added
Change
+2.7M
Δ Own
+30454.3%
Date
Q1 2026
|
FMR LLC | Added· Q1 2026 | – | +2.7M | +30454.3% | Q1 2026 | |||||
|
Invesco Ltd.
· Added
Change
+1.4M
Δ Own
+229.9%
Date
Q1 2026
|
Invesco Ltd. | Added· Q1 2026 | – | +1.4M | +229.9% | Q1 2026 | |||||
|
Jane Street Group, LLC
· Added
Change
+1.3M
Date
Q1 2026
|
Jane Street Group, LLC | Added· Q1 2026 | – | +1.3M | – | Q1 2026 | |||||
|
Encompass Capital Advisors LLC
· Added
Change
+1.1M
Date
Q1 2026
|
Encompass Capital Advisors LLC | Added· Q1 2026 | – | +1.1M | – | Q1 2026 | |||||
|
Assenagon Asset Management S.A.
· Added
Change
+958K
Date
Q1 2026
|
Assenagon Asset Management S.A. | Added· Q1 2026 | – | +958K | – | Q1 2026 | |||||
|
Sourcerock Group LLC
· Reduced
Change
−935K
Date
Q1 2026
|
Sourcerock Group LLC | Reduced· Q1 2026 | – | −935K | – | Q1 2026 | |||||
|
American Century Companies Inc
· Reduced
Change
−742K
Date
Q1 2026
|
American Century Companies Inc | Reduced· Q1 2026 | – | −742K | – | Q1 2026 | |||||
|
Mirae Asset Global Etfs Holdings Ltd.
· Reduced
Change
−694K
Date
Q1 2026
|
Mirae Asset Global Etfs Holdings Ltd. | Reduced· Q1 2026 | – | −694K | – | Q1 2026 | |||||
|
UBS AM
· Reduced
Change
−651K
Date
Q1 2026
|
UBS AM | Reduced· Q1 2026 | – | −651K | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Added
Change
+624K
Δ Own
+89.4%
Date
Q1 2026
|
Citadel Advisors LLC | Added· Q1 2026 | – | +624K | +89.4% | Q1 2026 | |||||
|
Dimensional
· Reduced
Change
−574K
Date
Q1 2026
|
Dimensional | Reduced· Q1 2026 | – | −574K | – | Q1 2026 | |||||
|
Millennium Management LLC
· Added
Change
+570K
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | – | +570K | – | Q1 2026 | |||||
|
Kinetic Partners Management, LP
· New
Change
+532K
Date
Q1 2026
|
Kinetic Partners Management, LP | New· Q1 2026 | – | +532K | – | Q1 2026 | |||||
|
UBS Group AG
· Reduced
Change
−525K
Date
Q1 2026
|
UBS Group AG | Reduced· Q1 2026 | – | −525K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Berntzen Jarl
· Director
Grant (A)
2K
|
Berntzen Jarl | Director | Grant (A) | – | 2K | – | 211K | – | Jun 15, 2026 | Jun 17, 2026 | |||||||||
|
Glasser Errol
· Director
Grant (A)
2K
|
Glasser Errol | Director | Grant (A) | – | 2K | – | 121K | – | Jun 15, 2026 | Jun 17, 2026 | |||||||||
|
Michelmore Andrew G.
· Director
Tax withholding or exercise payment (F)
-$36K
|
Michelmore Andrew G. | Director | Tax withholding or exercise payment (F) | $54.55 | -652 | -$36K | 91K | – | Jun 15, 2026 | Jun 17, 2026 | |||||||||
|
Michelmore Andrew G.
· Director
Grant (A)
2K
|
Michelmore Andrew G. | Director | Grant (A) | – | 2K | – | 91K | – | Jun 15, 2026 | Jun 17, 2026 | |||||||||
|
Bush Jennifer Mary
· Director
Grant (A)
2K
|
Bush Jennifer Mary | Director | Grant (A) | – | 2K | – | 49K | – | Jun 15, 2026 | Jun 17, 2026 | |||||||||
|
Olivier Tamla A.
· Director
Grant (A)
2K
|
Olivier Tamla A. | Director | Grant (A) | – | 2K | – | 32K | – | Jun 15, 2026 | Jun 17, 2026 | |||||||||
|
Trpkovski Peter A.
· Officer
Sell
−$845K
|
Trpkovski Peter A. | Officer | Sell | $50.51 | −17K | −$845K | 64K | – | Mar 25, 2026 | Mar 27, 2026 | |||||||||
|
Gary Jesse E.
· Director, Officer
Sell
−$8.3M
|
Gary Jesse E. | Director, Officer | Sell | $55.47 | −150K | −$8.3M | 143K | – | Mar 16, 2026 | Mar 17, 2026 | |||||||||
|
Calloway Kenneth L.
· Officer
Sell
−$1.0M
|
Calloway Kenneth L. | Officer | Sell | $58.00 | −18K | −$1.0M | 25K | – | Mar 12, 2026 | Mar 13, 2026 | |||||||||
|
Hoffman Robert F.
· Officer
Sell
−$595K
|
Hoffman Robert F. | Officer | Sell | $56.51 | −11K | −$595K | 57K | – | Mar 11, 2026 | Mar 13, 2026 | |||||||||
|
Hoffman Robert F.
· Officer
Sell
−$563K
|
Hoffman Robert F. | Officer | Sell | $56.33 | −10K | −$563K | 67K | – | Mar 4, 2026 | Mar 6, 2026 | |||||||||
|
Glencore AG
· 10% Owner
Sell
−$327M
|
Glencore AG | 10% Owner | Sell | $51.75 | −6.3M | −$327M | 12.2M | – | Mar 4, 2026 | Mar 4, 2026 | |||||||||
|
Aboud Matt
· Officer
Sell
−$156K
|
Aboud Matt | Officer | Sell | $52.67 | −3K | −$156K | 65K | – | Mar 3, 2026 | Mar 4, 2026 | |||||||||
|
Aboud Matt
· Officer
Sell
−$637K
|
Aboud Matt | Officer | Sell | $52.50 | −12K | −$637K | 68K | – | Mar 2, 2026 | Mar 4, 2026 | |||||||||
|
Hafberg Agust F.
· Officer
Sell
−$1.2M
|
Hafberg Agust F. | Officer | Sell | $51.24 | −23K | −$1.2M | 45K | – | Feb 27, 2026 | Mar 3, 2026 | |||||||||
N
A
M
G
A
A
386 reporting institutions disclosed CENX position changes in the Q1 2026 snapshot.
For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.
An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.
Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.
Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.
A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.