Ownership history in Harbor Advisors LLC · 37 quarters on record
This page tracks every 13F SEC filing in which Harbor Advisors LLC reported a position in AMBAC FINL GROUP INC (AMBC). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q4 | UNCHANGED | 196,382 | — | 0% | 0.23% | $1.5M | — |
| 2025 Q3 | UNCHANGED | 196,382 | — | 0% | 0.25% | $1.6M | — |
| 2025 Q2 | UNCHANGED | 196,382 | — | 0% | 0.23% | $1.4M | — |
| 2025 Q1 | UNCHANGED | 196,382 | — | 0% | 0.30% | $1.7M | — |
| 2024 Q4 | UNCHANGED | 196,382 | — | 0% | 0.39% | $2.5M | — |
| 2024 Q3 | UNCHANGED | 196,382 | — | 0% | 0.37% | $2.2M | — |
| 2024 Q2 | UNCHANGED | 196,382 | — | 0% | 0.46% | $2.5M | — |
| 2024 Q1 | UNCHANGED | 196,382 | — | 0% | 0.56% | $3.1M | — |
| 2023 Q4 | UNCHANGED | 196,382 | — | 0% | 0.62% | $3.2M | — |
| 2023 Q3 | UNCHANGED | 196,382 | — | 0% | 0.51% | $2.4M | — |
As of 2025 Q4 — sorted by position size