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Disclosery

GAGNON SECURITIES LLC: SLG position timeline

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

GAGNON SECURITIES LLC held 25,862 SLG 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 25,862 shares
    Change vs previous 13F 0 shares

    0.26% of the 13F portfolio, value $1,338,876.

    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 25,862 shares
    Change vs previous 13F +24 shares

    0.22% of the 13F portfolio, value $955,342.

    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 25,838 shares
    Change vs previous 13F -148 shares

    0.24% of the 13F portfolio, value $1,185,189.

    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 25,986 shares
    Change vs previous 13F -176 shares

    0.31% of the 13F portfolio, value $1,554,223.

    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 26,162 shares
    Change vs previous 13F 0 shares

    0.33% of the 13F portfolio, value $1,619,428.

    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 26,162 shares
    Change vs previous 13F -4,115 shares

    0.33% of the 13F portfolio, value $1,509,547.

    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 30,277 shares
    Change vs previous 13F -1,577 shares

    0.41% of the 13F portfolio, value $2,056,414.

    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 31,854 shares
    Change vs previous 13F not available

    0.44% of the 13F portfolio, value $2,217,357.

    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).