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BLAIR WILLIAM & CO/IL: TENB position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BLAIR WILLIAM & CO/IL on TENB, newest first. How the timeline and the estimate are built.

BLAIR WILLIAM & CO/IL held 30,395 TENB shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 30,395 shares
    Change vs previous 13F -228 shares

    <0.01% of the 13F portfolio, value $1,120,968.

    13F-HR 0001104659-26-093821 filed by BLAIR WILLIAM & CO/IL
    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 30,623 shares
    Change vs previous 13F -112 shares

    <0.01% of the 13F portfolio, value $517,988.

    13F-HR 0001104659-26-057897 filed by BLAIR WILLIAM & CO/IL
    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 30,735 shares
    Change vs previous 13F -16,775 shares

    <0.01% of the 13F portfolio, value $723,195.

    13F-HR 0001104659-26-015563 filed by BLAIR WILLIAM & CO/IL
    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 47,510 shares
    Change vs previous 13F -106,200 shares

    <0.01% of the 13F portfolio, value $1,385,392.

    13F-HR 0001104659-25-109927 filed by BLAIR WILLIAM & CO/IL
    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 153,710 shares
    Change vs previous 13F -16,276 shares

    0.01% of the 13F portfolio, value $5,192,320.

    13F-HR 0001104659-25-070274 filed by BLAIR WILLIAM & CO/IL
    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 169,986 shares
    Change vs previous 13F -42,131 shares

    0.02% of the 13F portfolio, value $5,946,103.

    13F-HR 0001104659-25-046545 filed by BLAIR WILLIAM & CO/IL
    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 212,117 shares
    Change vs previous 13F -59,501 shares

    0.02% of the 13F portfolio, value $8,353,167.

    13F-HR 0001104659-25-011872 filed by BLAIR WILLIAM & CO/IL
    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 271,618 shares
    Change vs previous 13F not available

    0.03% of the 13F portfolio, value $11,005,961.

    13F-HR 0001104659-24-116499 filed by BLAIR WILLIAM & CO/IL
    Filed (acceptance time not in the bulk data set), ingested

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