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Disclosery

Polar Asset Management Partners Inc.: MTSI position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Polar Asset Management Partners Inc. on MTSI, newest first. How the timeline and the estimate are built.

Polar Asset Management Partners Inc. held 0 MTSI 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 -27,786 shares

    13F-HR 0001326389-26-000062 filed by Polar Asset Management Partners Inc.
    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 27,786 shares
    Change vs previous 13F -44,690 shares

    0.15% of the 13F portfolio, value $6,170,437.

    13F-HR 0001326389-26-000039 filed by Polar Asset Management Partners Inc.
    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 72,476 shares
    Change vs previous 13F -214,284 shares

    0.25% of the 13F portfolio, value $12,413,689.

    13F-HR 0001326389-26-000033 filed by Polar Asset Management Partners Inc.
    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 286,760 shares
    Change vs previous 13F +36,995 shares

    0.72% of the 13F portfolio, value $35,698,752.

    13F-HR/A 0001326389-25-000282 filed by Polar Asset Management Partners Inc.
    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 249,765 shares
    Change vs previous 13F -78,679 shares

    0.89% of the 13F portfolio, value $35,788,827.

    13F-HR 0001326389-25-000277 filed by Polar Asset Management Partners Inc.
    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 328,444 shares
    Change vs previous 13F +175,599 shares

    1.09% of the 13F portfolio, value $32,969,209.

    13F-HR 0001041062-25-000132 filed by Polar Asset Management Partners Inc.
    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 152,845 shares
    Change vs previous 13F -31,955 shares

    0.29% of the 13F portfolio, value $19,856,094.

    13F-HR/A 0001326389-25-000142 filed by Polar Asset Management Partners Inc.
    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 184,800 shares
    Change vs previous 13F not available

    0.49% of the 13F portfolio, value $20,560,848.

    13F-HR 0001062993-24-019140 filed by Polar Asset Management Partners Inc.
    Filed (acceptance time not in the bulk data set), ingested

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