BROWN ADVISORY INC: IONS position timeline
Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of BROWN ADVISORY INC on IONS, newest first. How the timeline and the estimate are built.
BROWN ADVISORY INC held 15,846 IONS shares at 2026-06-30 per its 13F-HR filed 2026-08-14.
the latest 13F is the newest step
- period ended2026-06-3013F 15,846 sharesChange vs previous 13F +741 shares
<0.01% of the 13F portfolio, value $1,256,429.
13F-HR 0001345929-26-000038 filed by BROWN ADVISORY INC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2026-03-3113F 15,105 sharesChange vs previous 13F +140 shares
<0.01% of the 13F portfolio, value $1,134,234.
13F-HR 0001345929-26-000028 filed by BROWN ADVISORY INC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-12-3113F 14,965 sharesChange vs previous 13F +939 shares
<0.01% of the 13F portfolio, value $1,183,881.
13F-HR 0001345929-26-000018 filed by BROWN ADVISORY INC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-09-3013F 14,026 sharesChange vs previous 13F +1,835 shares
<0.01% of the 13F portfolio, value $917,581.
13F-HR 0001345929-25-000002 filed by BROWN ADVISORY INC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-06-3013F 12,191 sharesChange vs previous 13F +165 shares
<0.01% of the 13F portfolio, value $481,666.
13F-HR 0001085146-25-005034 filed by BROWN ADVISORY INC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2025-03-3113F 12,026 sharesChange vs previous 13F -704 shares
<0.01% of the 13F portfolio, value $362,824.
13F-HR 0001085146-25-002448 filed by BROWN ADVISORY INC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-12-3113F 12,730 sharesChange vs previous 13F -16 shares
<0.01% of the 13F portfolio, value $445,041.
13F-HR 0001085146-25-001491 filed by BROWN ADVISORY INC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).
- period ended2024-09-3013F 12,746 sharesChange vs previous 13F not available
<0.01% of the 13F portfolio, value $510,605.
13F-HR 0001085146-24-005669 filed by BROWN ADVISORY INC
Filed (acceptance time not in the bulk data set), ingestedAcceptance time not in the bulk data set (spec §4.2).