BLAIR WILLIAM & CO/IL: BWXT position timeline

BLAIR WILLIAM & CO/IL held 1,556,417 BWXT 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 1,556,417 shares

   Change vs previous 13F +118,292 shares

   0.79% of the 13F portfolio, value $302,956,557.

   13F-HR 0001104659-26-093821 filed by BLAIR WILLIAM & CO/IL
   Filed 2026-08-11 (acceptance time not in the bulk data set), ingested 2026-10-06 09:57:27 UTC

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

2. period ended2026-03-31

   13F 1,438,125 shares

   Change vs previous 13F -1,541 shares

   0.84% of the 13F portfolio, value $294,082,157.

   13F-HR 0001104659-26-057897 filed by BLAIR WILLIAM & CO/IL
   Filed 2026-05-08 (acceptance time not in the bulk data set), ingested 2026-10-06 09:58:43 UTC

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

3. period ended2025-12-31

   13F 1,439,666 shares

   Change vs previous 13F +248,598 shares

   0.67% of the 13F portfolio, value $248,831,916.

   13F-HR 0001104659-26-015563 filed by BLAIR WILLIAM & CO/IL
   Filed 2026-02-17 (acceptance time not in the bulk data set), ingested 2026-10-07 03:01:36 UTC

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

4. period ended2025-09-30

   13F 1,191,068 shares

   Change vs previous 13F +187,461 shares

   0.58% of the 13F portfolio, value $219,597,124.

   13F-HR 0001104659-25-109927 filed by BLAIR WILLIAM & CO/IL
   Filed 2025-11-12 (acceptance time not in the bulk data set), ingested 2026-10-07 03:02:25 UTC

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

5. period ended2025-06-30

   13F 1,003,607 shares

   Change vs previous 13F +220,616 shares

   0.4% of the 13F portfolio, value $144,579,566.

   13F-HR 0001104659-25-070274 filed by BLAIR WILLIAM & CO/IL
   Filed 2025-07-24 (acceptance time not in the bulk data set), ingested 2026-10-07 18:23:11 UTC

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

6. period ended2025-03-31

   13F 782,991 shares

   Change vs previous 13F +358,170 shares

   0.23% of the 13F portfolio, value $77,242,056.

   13F-HR 0001104659-25-046545 filed by BLAIR WILLIAM & CO/IL
   Filed 2025-05-09 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:06 UTC

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

7. period ended2024-12-31

   13F 424,821 shares

   Change vs previous 13F +384,323 shares

   0.14% of the 13F portfolio, value $47,320,830.

   13F-HR 0001104659-25-011872 filed by BLAIR WILLIAM & CO/IL
   Filed 2025-02-12 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:55 UTC

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

8. period ended2024-09-30

   13F 40,498 shares

   Change vs previous 13F not available

   0.01% of the 13F portfolio, value $4,402,137.

   13F-HR 0001104659-24-116499 filed by BLAIR WILLIAM & CO/IL
   Filed 2024-11-12 (acceptance time not in the bulk data set), ingested 2026-10-07 18:26:56 UTC

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