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Disclosery

Siren, L.L.C.: MSFT position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Siren, L.L.C. on MSFT, newest first. How the timeline and the estimate are built.

Siren, L.L.C. held 37,500 MSFT shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 37,500 shares
    Change vs previous 13F -3,880 shares

    0.28% of the 13F portfolio, value $13,988,250.

    13F-HR 0002005245-26-000008 filed by Siren, L.L.C.
    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 41,380 shares
    Change vs previous 13F +26,380 shares

    0.42% of the 13F portfolio, value $15,317,635.

    13F-HR 0002005245-26-000006 filed by Siren, L.L.C.
    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 15,000 shares
    Change vs previous 13F -2,150 shares

    0.22% of the 13F portfolio, value $7,254,300.

    13F-HR 0002005245-26-000003 filed by Siren, L.L.C.
    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 17,150 shares
    Change vs previous 13F +1,000 shares

    0.35% of the 13F portfolio, value $8,882,843.

    13F-HR 0002005245-25-000012 filed by Siren, L.L.C.
    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 16,150 shares
    Change vs previous 13F -12,350 shares

    0.42% of the 13F portfolio, value $8,033,172.

    13F-HR 0002005369-25-000014 filed by Siren, L.L.C.
    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 28,500 shares
    Change vs previous 13F +5,500 shares

    0.6% of the 13F portfolio, value $10,698,615.

    13F-HR/A 0002005245-25-000008 filed by Siren, L.L.C.
    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 23,000 shares
    Change vs previous 13F +1,000 shares

    0.43% of the 13F portfolio, value $9,694,500.

    13F-HR 0002005245-25-000002 filed by Siren, L.L.C.
    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 22,000 shares
    Change vs previous 13F not available

    0.47% of the 13F portfolio, value $9,462,640.

    13F-HR 0002005245-24-000005 filed by Siren, L.L.C.
    Filed (acceptance time not in the bulk data set), ingested

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