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Disclosery

Portolan Capital Management, LLC: SILC position timeline

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

Portolan Capital Management, LLC held 162,466 SILC shares at 2026-06-30 per its 13F-HR filed 2026-08-14, and reported 288,787 shares, 5.06%, in a 13G filed 2026-09-30.

Estimated current stake: 288,787 shares, 5.06% of the class

Estimated from 13G of 2026-09-30. As of 2026-09-23, 13G 0001104659-26-112395.

Shares are the reporting group's aggregate and may include entities that do not file a 13F.

Percent of portfolio stays on the 13F for 2026-06-30.

  1. event date2026-09-23
    13G 288,787 shares
    Share basis changed not comparable

    5.06% of the class. Different basis (group aggregate from 13G).

    13G 0001104659-26-112395 filed by Portolan Capital Management, LLC
    Accepted , ingested

    A 13D/G states the aggregate of its reporting persons, which may include entities that do not file a 13F.

  2. period ended2026-06-30
    13F 162,466 shares
    Change vs previous 13F not available

    0.29% of the 13F portfolio, value $7,788,620.

    13F-HR 0001104659-26-096980 filed by Portolan Capital Management, LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec ยง4.2).