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Granahan Investment Management, LLC: RGEN position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Granahan Investment Management, LLC on RGEN, newest first. How the timeline and the estimate are built.

Granahan Investment Management, LLC held 332,271 RGEN 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 332,271 shares
    Change vs previous 13F +245,318 shares

    1.62% of the 13F portfolio, value $45,335,055.

    13F-HR 0001398344-26-014483 filed by Granahan Investment Management, 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 86,953 shares
    Change vs previous 13F +14,951 shares

    0.5% of the 13F portfolio, value $10,244,802.

    13F-HR 0001398344-26-009220 filed by Granahan Investment Management, 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 72,002 shares
    Change vs previous 13F +2,131 shares

    0.51% of the 13F portfolio, value $11,798,248.

    13F-HR 0001398344-26-003202 filed by Granahan Investment Management, 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 69,871 shares
    Change vs previous 13F -65,175 shares

    0.38% of the 13F portfolio, value $9,339,657.

    13F-HR 0001398344-25-020897 filed by Granahan Investment Management, 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 135,046 shares
    Change vs previous 13F +33,849 shares

    0.68% of the 13F portfolio, value $16,797,021.

    13F-HR 0001398344-25-015412 filed by Granahan Investment Management, 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 101,197 shares
    Change vs previous 13F -6,218 shares

    0.64% of the 13F portfolio, value $12,876,306.

    13F-HR 0001398344-25-009461 filed by Granahan Investment Management, 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 107,415 shares
    Change vs previous 13F +19,160 shares

    0.65% of the 13F portfolio, value $15,461,315.

    13F-HR 0001398344-25-002765 filed by Granahan Investment Management, 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 88,255 shares
    Change vs previous 13F not available

    0.52% of the 13F portfolio, value $13,134,109.

    13F-HR 0001398344-24-020730 filed by Granahan Investment Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

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