Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in AMBP held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | CANYON CAPITAL ADVISORS LLC | 11.5M | $46.7M | -7.4% | 1.928% | 6.04% |
| 2 | Arini Captial Management Ltd | 11.2M | $45.5M | 0.0% | 1.882% | 7.19% |
| 3 | BlackRock, Inc. | 7.7M | $31.3M | -3.5% | 1.294% | 0.00% |
| 4 | GOLDMAN SACHS GROUP INC | 7.3M | $29.5M | +7.3% | 1.219% | 0.00% |
| 5 | PLATINUM EQUITY, LLC | 5.3M | $21.5M | 0.0% | 0.889% | 66.52% |
| 6 | PRIVATE MANAGEMENT GROUP INC | 5.0M | $20.3M | -1.3% | 0.839% | 0.59% |
| 7 | DIMENSIONAL FUND ADVISORS LP | 4.6M | $18.8M | +20.9% | 0.776% | 0.00% |
| 8 | Weiss Asset Management LP | 4.5M | $18.3M | +11276.2% | 0.756% | 0.40% |
| 9 | Diameter Capital Partners LP | 4.5M | $18.1M | -16.9% | 0.747% | 5.17% |
| 10 | Empyrean Capital Partners, LP | 4.0M | $16.2M | 0.0% | 0.669% | 0.54% |
| 11 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 3.3M | $13.2M | +28.4% | 0.547% | 0.01% |
| 12 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 3.1M | $12.6M | -71.3% | 0.521% | 0.02% |
| 13 | Monarch Alternative Capital LP | 3.0M | $12.0M | -44.8% | 0.494% | 2.04% |
| 14 | RENAISSANCE TECHNOLOGIES LLC | 2.9M | $11.7M | +31.9% | 0.484% | 0.02% |
| 15 | STATE STREET CORP | 2.5M | $10.2M | +0.5% | 0.422% | 0.00% |
| 16 | Gilman Hill Asset Management, LLC | 2.0M | $8.1M | +0.4% | 0.334% | 1.22% |
| 17 | JACOBS LEVY EQUITY MANAGEMENT, INC | 1.9M | $7.8M | -6.3% | 0.320% | 0.03% |
| 18 | GEODE CAPITAL MANAGEMENT, LLC | 1.9M | $7.6M | +2.4% | 0.315% | 0.00% |
| 19 | Mountaineer Partners Management, LLC | 1.9M | $7.6M | +27.8% | 0.314% | 3.78% |
| 20 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.9M | $7.5M | — | 0.310% | 0.00% |
| 21 | Nuveen, LLC | 1.7M | $7.0M | +0.1% | 0.291% | 0.00% |
| 22 | MORGAN STANLEY | 1.7M | $7.0M | +0.3% | 0.291% | 0.00% |
| 23 | UBS Group AG | 1.5M | $6.0M | +25.2% | 0.249% | 0.00% |
| 24 | GAMCO INVESTORS, INC. ET AL | 1.4M | $5.8M | -2.1% | 0.238% | 0.06% |
| 25 | MILLENNIUM MANAGEMENT LLC | 1.4M | $5.5M | +66.4% | 0.227% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in AMBP — a direct measure of their conviction.
Filings activity in AMBP during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 212 | +6.0% | 19.22% | 0.98 pp | $483M | 4.8% |
| Q4 2025 | 200 | +1.0% | 20.20% | +2.49 pp | $507M | +14% |
| Q3 2025 | 198 | +2.6% | 17.71% | 0.83 pp | $445M | 4.5% |
| Q2 2025 | 193 | +12% | 18.54% | +5.17 pp | $465M | +39% |
| Q1 2025 | 172 | 11% | 13.37% | +0.36 pp | $336M | +2.7% |
| Q4 2024 | 193 | +1.0% | 13.01% | 3.13 pp | $327M | 19% |
| Q3 2024 | 191 | +0.0% | 16.14% | +2.44 pp | $405M | +18% |
| Q2 2024 | 191 | — | 13.70% | — | $344M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying AMBP stock.
Based on Q1 2026 13F filings, institutional ownership of Ardagh Metal Packaging S.A. stands at 19.2%, held across 212 reporting institutions.
CANYON CAPITAL ADVISORS LLC is the largest reported institutional holder of AMBP, with approximately 11,523,328 shares worth $0.05B as of Q1 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of AMBP, including RENAISSANCE TECHNOLOGIES LLC, MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for AMBP is 52 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
44 institutions opened new positions in AMBP during Q1 2026, while 32 fully exited. 54 added to existing positions and 112 trimmed.
AMBP institutional ownership fell by 0.98 percentage points quarter-over-quarter, with a net change of +12 holders.
The top 10 institutions account for 55.2% of all reported 13F value in AMBP, and the top 25 account for 82.1%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Ardagh Metal Packaging S.A. (AMBP) Institutional Ownership