As of September 29, 2026, the three largest insider holders of AMBP are Abigail Blunt (Director, 125.85K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Abigail Blunt | Director | 125,854 | 0 | 125,854 | 100.0% | 16 Sep, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 15 Jun, 2026 | Abigail Blunt | Director | Acquired A | 6,859 | — | — | 120,007 | Direct |