Chesley Taft & Associates LLC: IONQ position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Chesley Taft & Associates LLC on IONQ, newest first. How the timeline and the estimate are built.

Chesley Taft & Associates LLC held 0 IONQ shares at 2026-03-31 per its 13F-HR filed 2026-04-13.

the latest 13F is the newest step

period ended2026-03-31
13F 0 shares
Change vs previous 13F -15,115 shares
13F-HR 0001164632-26-000002 filed by Chesley Taft & Associates LLC
Filed 2026-04-13 (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).
Exited: the 13F for this period no longer lists the position.
period ended2025-12-31
13F 15,115 shares
Change vs previous 13F not available
0.03% of the 13F portfolio, value $678,210.
13F-HR 0001164632-26-000001 filed by Chesley Taft & Associates LLC
Filed 2026-01-14 (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).