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Disclosery

Diameter Capital Partners LP: AMBP position timeline

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

Diameter Capital Partners LP held 5,030,465 AMBP shares at 2026-06-30 per its 13F-HR/A filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F/A 5,030,465 shares
    Change vs previous 13F +563,045 shares

    2.54% of the 13F portfolio, value $23,844,404.

    13F-HR/A 0001172661-26-003822 filed by Diameter 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 4,467,420 shares
    Change vs previous 13F -908,946 shares

    3.46% of the 13F portfolio, value $18,093,051.

    13F-HR 0001172661-26-002226 filed by Diameter 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 5,376,366 shares
    Change vs previous 13F +286,553 shares

    2.3% of the 13F portfolio, value $22,043,101.

    13F-HR 0001172661-26-000929 filed by Diameter 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 5,089,813 shares
    Change vs previous 13F +3,215,692 shares

    2.13% of the 13F portfolio, value $20,308,354.

    13F-HR 0001172661-25-004869 filed by Diameter 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 1,874,121 shares
    Change vs previous 13F -2,750,000 shares

    2.24% of the 13F portfolio, value $8,021,238.

    13F-HR 0001172661-25-003335 filed by Diameter 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 4,624,121 shares
    Change vs previous 13F +250,000 shares

    3.32% of the 13F portfolio, value $13,964,845.

    13F-HR 0001172661-25-001976 filed by Diameter 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 4,374,121 shares
    Change vs previous 13F +400,000 shares

    2.5% of the 13F portfolio, value $13,166,104.

    13F-HR 0001172661-25-001081 filed by Diameter 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 3,974,121 shares
    Change vs previous 13F not available

    3.24% of the 13F portfolio, value $14,982,436.

    13F-HR 0001172661-24-004806 filed by Diameter Capital Partners LP
    Filed (acceptance time not in the bulk data set), ingested

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