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JOHN G ULLMAN & ASSOCIATES INC: WDC position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of JOHN G ULLMAN & ASSOCIATES INC on WDC, newest first. How the timeline and the estimate are built.

JOHN G ULLMAN & ASSOCIATES INC held 12,491 WDC shares at 2026-06-30 per its 13F-HR filed 2026-08-11.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 12,491 shares
    Change vs previous 13F -20,467 shares

    0.97% of the 13F portfolio, value $7,978,252.

    13F-HR 0000919530-26-000003 filed by JOHN G ULLMAN & ASSOCIATES 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 32,958 shares
    Change vs previous 13F -31,350 shares

    1.18% of the 13F portfolio, value $8,914,809.

    13F-HR 0000919530-26-000002 filed by JOHN G ULLMAN & ASSOCIATES 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 64,308 shares
    Change vs previous 13F -11,750 shares

    1.48% of the 13F portfolio, value $11,078,339.

    13F-HR 0000919530-26-000001 filed by JOHN G ULLMAN & ASSOCIATES 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 76,058 shares
    Change vs previous 13F -16,485 shares

    1.23% of the 13F portfolio, value $9,131,523.

    13F-HR 0000919530-25-000006 filed by JOHN G ULLMAN & ASSOCIATES 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 92,543 shares
    Change vs previous 13F -8,068 shares

    0.88% of the 13F portfolio, value $5,921,827.

    13F-HR 0000919530-25-000003 filed by JOHN G ULLMAN & ASSOCIATES 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 100,611 shares
    Change vs previous 13F +7,136 shares

    0.63% of the 13F portfolio, value $4,067,703.

    13F-HR 0000919530-25-000002 filed by JOHN G ULLMAN & ASSOCIATES 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 93,475 shares
    Change vs previous 13F -1,743 shares

    0.82% of the 13F portfolio, value $5,573,914.

    13F-HR 0000919530-25-000001 filed by JOHN G ULLMAN & ASSOCIATES 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 95,218 shares
    Change vs previous 13F not available

    0.93% of the 13F portfolio, value $6,502,437.

    13F-HR 0000919530-24-000004 filed by JOHN G ULLMAN & ASSOCIATES INC
    Filed (acceptance time not in the bulk data set), ingested

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