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Empyrean Capital Partners, LP: AMBP position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Empyrean Capital Partners, LP on AMBP, newest first. How the timeline and the estimate are built.

Empyrean Capital Partners, LP held 4,000,000 AMBP shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 4,000,000 shares
    Change vs previous 13F 0 shares

    0.67% of the 13F portfolio, value $18,960,000.

    13F-HR 0001317195-26-000003 filed by Empyrean Capital Partners, LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  2. period ended2026-03-31
    13F 4,000,000 shares
    Change vs previous 13F 0 shares

    0.54% of the 13F portfolio, value $16,200,000.

    13F-HR 0001317195-26-000002 filed by Empyrean Capital Partners, LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-12-31
    13F 4,000,000 shares
    Change vs previous 13F 0 shares

    0.57% of the 13F portfolio, value $16,400,000.

    13F-HR 0001317195-26-000001 filed by Empyrean Capital Partners, LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2025-09-30
    13F 4,000,000 shares
    Change vs previous 13F 0 shares

    0.64% of the 13F portfolio, value $15,960,000.

    13F-HR 0001317195-25-000009 filed by Empyrean Capital Partners, LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  5. period ended2025-06-30
    13F 4,000,000 shares
    Change vs previous 13F 0 shares

    0.79% of the 13F portfolio, value $17,120,000.

    13F-HR 0001085146-25-005272 filed by Empyrean Capital Partners, LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  6. period ended2025-03-31
    13F 4,000,000 shares
    Change vs previous 13F 0 shares

    0.65% of the 13F portfolio, value $12,080,000.

    13F-HR 0001085146-25-003352 filed by Empyrean Capital Partners, LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  7. period ended2024-12-31
    13F 4,000,000 shares
    Change vs previous 13F 0 shares

    0.61% of the 13F portfolio, value $12,040,000.

    13F-HR 0001085146-25-001651 filed by Empyrean Capital Partners, LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).

  8. period ended2024-09-30
    13F 4,000,000 shares
    Change vs previous 13F not available

    0.83% of the 13F portfolio, value $15,080,000.

    13F-HR 0001085146-24-005923 filed by Empyrean Capital Partners, LP
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec §4.2).