BLAIR WILLIAM & CO/IL: AAON position timeline

BLAIR WILLIAM & CO/IL held 1,533,434 AAON 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 1,533,434 shares

   Change vs previous 13F -88,769 shares

   0.51% of the 13F portfolio, value $194,531,388.

   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 1,622,203 shares

   Change vs previous 13F -56,822 shares

   0.38% of the 13F portfolio, value $134,237,265.

   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 1,679,025 shares

   Change vs previous 13F -140,267 shares

   0.34% of the 13F portfolio, value $128,025,664.

   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 1,819,292 shares

   Change vs previous 13F -460,778 shares

   0.45% of the 13F portfolio, value $169,994,641.

   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 2,280,070 shares

   Change vs previous 13F +102,382 shares

   0.47% of the 13F portfolio, value $168,155,183.

   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 2,177,688 shares

   Change vs previous 13F +1,007,906 shares

   0.51% of the 13F portfolio, value $170,142,790.

   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 1,169,782 shares

   Change vs previous 13F +47,254 shares

   0.4% of the 13F portfolio, value $137,659,974.

   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 1,122,528 shares

   Change vs previous 13F not available

   0.36% of the 13F portfolio, value $121,053,416.

   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).