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Disclosery

WHITEBOX ADVISORS LLC: HDRN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of WHITEBOX ADVISORS LLC on HDRN, newest first. How the timeline and the estimate are built.

WHITEBOX ADVISORS LLC held 0 HDRN 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 0 shares
    Change vs previous 13F -550,000 shares

    13F-HR 0001257391-26-000006 filed by WHITEBOX ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

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

    Exited: the 13F for this period no longer lists the position.

  2. period ended2026-03-31
    13F/A 550,000 shares
    Change vs previous 13F 0 shares

    0.08% of the 13F portfolio, value $5,857,500.

    13F-HR 0001257391-26-000004 filed by WHITEBOX ADVISORS LLC
    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/A 550,000 shares
    Change vs previous 13F -210,000 shares

    0.1% of the 13F portfolio, value $5,797,000.

    13F-HR 0001257391-26-000002 filed by WHITEBOX ADVISORS LLC
    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/A 760,000 shares
    Change vs previous 13F 0 shares

    0.15% of the 13F portfolio, value $8,018,000.

    13F-HR 0001257391-25-000009 filed by WHITEBOX ADVISORS LLC
    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/A 760,000 shares
    Change vs previous 13F 0 shares

    0.21% of the 13F portfolio, value $7,888,800.

    13F-HR 0002073679-25-000003 filed by WHITEBOX ADVISORS LLC
    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/A 760,000 shares
    Change vs previous 13F 0 shares

    0.25% of the 13F portfolio, value $7,736,800.

    13F-HR 0001257391-25-000006 filed by WHITEBOX ADVISORS LLC
    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/A 760,000 shares
    Change vs previous 13F not available

    0.28% of the 13F portfolio, value $7,600,000.

    13F-HR 0001257391-25-000002 filed by WHITEBOX ADVISORS LLC
    Filed (acceptance time not in the bulk data set), ingested

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