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T. Rowe Price Investment Management, Inc.: WST 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 WST, newest first. How the timeline and the estimate are built.

T. Rowe Price Investment Management, Inc. held 1,805,019 WST 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 1,805,019 shares
    Change vs previous 13F -535,384 shares

    0.42% of the 13F portfolio, value $648,002,000.

    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 2,340,403 shares
    Change vs previous 13F +1,165,441 shares

    0.4% of the 13F portfolio, value $586,599,000.

    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 1,174,962 shares
    Change vs previous 13F +473,547 shares

    0.2% of the 13F portfolio, value $323,280,000.

    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 701,415 shares
    Change vs previous 13F +234,981 shares

    0.11% of the 13F portfolio, value $184,003,000.

    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 466,434 shares
    Change vs previous 13F +4,361 shares

    0.06% of the 13F portfolio, value $102,056,000.

    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 462,073 shares
    Change vs previous 13F -271,189 shares

    0.07% of the 13F portfolio, value $103,449,000.

    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).

  7. period ended2024-12-31
    13F 733,262 shares
    Change vs previous 13F -106,048 shares

    0.15% of the 13F portfolio, value $240,188,000.

    13F-HR 0000080255-25-000217 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).

  8. period ended2024-09-30
    13F 839,310 shares
    Change vs previous 13F not available

    0.15% of the 13F portfolio, value $251,928,000.

    13F-HR 0001897612-24-002015 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).