Mountaineer Partners Management, LLC
Position in AMBP — Ardagh Metal Packaging S.A.
CIK 1730532
New York, NY
Position in AMBP
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$5,441,647
-$2,164,584 QoQ
Shares Held
1,148,027
-38.9% QoQ
Ownership
0.192%
of shares outstanding
% of Portfolio
4.04%
of 13F equity value
Holder Rank
#26
of 227 holders
Holding Since
Sep 2021
9 quarters on record
Voting authority
Sole 68%
Shared 0%
None 32%
Common Shares in AMBP Over Time
Shares Held
Position Value (USD)
Position in Packaging & Containers
Consumer Cyclical · as of Jun 30, 2026Mountaineer Partners Management, LLC holds $5,441,647 across 1 Packaging & Containers name. AMBP ranks #1 (100.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AMBP |
Ardagh Metal Packaging S.A.
This page
|
1,148,027 | $5,441,647 |
All Filings in AMBP
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9 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $5,441,647 | 1,148,027 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $7,606,231 | 1,878,082 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $6,024,868 | 1,469,480 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $6,138,550 | 1,538,484 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $6,584,710 | 1,538,484 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $3,194,314 | 1,057,720 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $3,183,737 | 1,057,720 | Shares | Sole | 2025-02-14 | |
| 2021-12-31 | $9,873,247 | 1,093,383 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $10,492,749 | 1,053,489 | Shares | Sole | 2021-11-15 | |
| No filing history on record for this holder in this stock. | ||||||