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T. Rowe Price Investment Management, Inc.: BLFS position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of T. Rowe Price Investment Management, Inc. on BLFS, newest first. How the timeline and the estimate are built.

T. Rowe Price Investment Management, Inc. held 6,751,135 BLFS 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 6,751,135 shares
    Change vs previous 13F +244,789 shares

    0.12% of the 13F portfolio, value $190,653,000.

    13F-HR 0001897612-26-000578 filed by T. Rowe Price Investment Management, Inc.
    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 6,506,346 shares
    Change vs previous 13F +1,325,522 shares

    0.09% of the 13F portfolio, value $124,142,000.

    13F-HR 0001897612-26-000460 filed by T. Rowe Price Investment Management, 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/A 5,180,824 shares
    Change vs previous 13F +1,113,972 shares

    0.08% of the 13F portfolio, value $125,273,000.

    13F-HR/A 0001897612-26-000299 filed by T. Rowe Price Investment Management, 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 4,066,852 shares
    Change vs previous 13F -179,854 shares

    0.06% of the 13F portfolio, value $103,746,000.

    13F-HR 0001897612-25-000511 filed by T. Rowe Price Investment Management, 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 4,246,706 shares
    Change vs previous 13F +2,898,698 shares

    0.06% of the 13F portfolio, value $91,475,000.

    13F-HR 0000080255-25-000548 filed by T. Rowe Price Investment Management, 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 1,348,008 shares
    Change vs previous 13F not available

    0.02% of the 13F portfolio, value $30,789,000.

    13F-HR 0000080255-25-000283 filed by T. Rowe Price Investment Management, Inc.
    Filed (acceptance time not in the bulk data set), ingested

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