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GRIZZLYROCK CAPITAL, LLC: AMTM position timeline

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

GRIZZLYROCK CAPITAL, LLC held 318,363 AMTM 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 318,363 shares
    Change vs previous 13F +29,250 shares

    4.6% of the 13F portfolio, value $6,580,563.

    13F-HR 0001214659-26-010367 filed by GRIZZLYROCK CAPITAL, LLC
    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 289,113 shares
    Change vs previous 13F +4,000 shares

    5.97% of the 13F portfolio, value $7,540,067.

    13F-HR 0001214659-26-006454 filed by GRIZZLYROCK CAPITAL, 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 285,113 shares
    Change vs previous 13F +2,000 shares

    6.19% of the 13F portfolio, value $8,268,277.

    13F-HR 0001214659-26-001965 filed by GRIZZLYROCK CAPITAL, 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 283,113 shares
    Change vs previous 13F +29,750 shares

    5.27% of the 13F portfolio, value $6,780,556.

    13F-HR 0001214659-25-016622 filed by GRIZZLYROCK CAPITAL, 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 253,363 shares
    Change vs previous 13F +89,137 shares

    4.5% of the 13F portfolio, value $5,981,900.

    13F-HR 0001214659-25-012216 filed by GRIZZLYROCK CAPITAL, 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 164,226 shares
    Change vs previous 13F not available

    2.71% of the 13F portfolio, value $2,988,913.

    13F-HR 0001214659-25-007821 filed by GRIZZLYROCK CAPITAL, LLC
    Filed (acceptance time not in the bulk data set), ingested

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