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Disclosery

POTOMAC FUND MANAGEMENT INC /ADV: SIL position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of POTOMAC FUND MANAGEMENT INC /ADV on SIL, newest first. How the timeline and the estimate are built.

POTOMAC FUND MANAGEMENT INC /ADV held 305,400 SIL shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 305,400 shares
    Change vs previous 13F +126,200 shares

    0.6% of the 13F portfolio, value $23,656,284.

    13F-HR 0000826000-26-000007 filed by POTOMAC FUND MANAGEMENT INC /ADV
    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 179,200 shares
    Change vs previous 13F +15,311 shares

    0.56% of the 13F portfolio, value $16,142,336.

    13F-HR 0000826000-26-000005 filed by POTOMAC FUND MANAGEMENT INC /ADV
    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 163,889 shares
    Change vs previous 13F -11,469 shares

    0.5% of the 13F portfolio, value $13,688,009.

    13F-HR 0000826000-26-000003 filed by POTOMAC FUND MANAGEMENT INC /ADV
    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 175,358 shares
    Change vs previous 13F not available

    0.53% of the 13F portfolio, value $12,560,894.

    13F-HR 0000826000-25-000012 filed by POTOMAC FUND MANAGEMENT INC /ADV
    Filed (acceptance time not in the bulk data set), ingested

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