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Disclosery

GAGNON SECURITIES LLC: PFE position timeline

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

GAGNON SECURITIES LLC held 23,346 PFE shares at 2026-06-30 per its 13F-HR filed 2026-08-05.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 23,346 shares
    Change vs previous 13F -20,914 shares

    0.11% of the 13F portfolio, value $562,172.

    13F-HR 0001019056-26-000123 filed by GAGNON SECURITIES 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 44,260 shares
    Change vs previous 13F -93 shares

    0.29% of the 13F portfolio, value $1,242,821.

    13F-HR 0001019056-26-000076 filed by GAGNON SECURITIES 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 44,353 shares
    Change vs previous 13F +1,193 shares

    0.22% of the 13F portfolio, value $1,104,390.

    13F-HR 0001019056-26-000037 filed by GAGNON SECURITIES 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 43,160 shares
    Change vs previous 13F -63 shares

    0.22% of the 13F portfolio, value $1,099,717.

    13F-HR 0001019056-25-000228 filed by GAGNON SECURITIES 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 43,223 shares
    Change vs previous 13F +3,432 shares

    0.21% of the 13F portfolio, value $1,047,726.

    13F-HR 0001019056-25-000196 filed by GAGNON SECURITIES 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 39,791 shares
    Change vs previous 13F +4,315 shares

    0.22% of the 13F portfolio, value $1,008,304.

    13F-HR 0001019056-25-000173 filed by GAGNON SECURITIES 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 35,476 shares
    Change vs previous 13F -1,766 shares

    0.19% of the 13F portfolio, value $941,178.

    13F-HR 0001019056-25-000034 filed by GAGNON SECURITIES LLC
    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 37,242 shares
    Change vs previous 13F not available

    0.21% of the 13F portfolio, value $1,077,783.

    13F-HR 0001019056-24-000316 filed by GAGNON SECURITIES LLC
    Filed (acceptance time not in the bulk data set), ingested

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