Franklin Resources: INSM position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of Franklin Resources on INSM, newest first. How the timeline and the estimate are built.

Franklin Resources held 2,989,144 INSM shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

period ended2026-06-30
13F 2,989,144 shares
Change vs previous 13F -271,542 shares
0.05% of the 13F portfolio, value $318,702,581.
13F-HR 0000038777-26-000222 filed by FRANKLIN RESOURCES INC
Filed 2026-08-13 (acceptance time not in the bulk data set), ingested 2026-10-06 09:57:27 UTC
- FRANKLIN RESOURCES INC: 2,273,222 shares
- Clearbridge Investments, LLC: 715,922 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2026-03-31
13F 3,260,686 shares
Change vs previous 13F -313,861 shares
0.1% of the 13F portfolio, value $533,187,340.
13F-HR 0000038777-26-000124 filed by FRANKLIN RESOURCES INC
Filed 2026-05-13 (acceptance time not in the bulk data set), ingested 2026-10-06 09:58:43 UTC
- FRANKLIN RESOURCES INC: 2,617,251 shares
- Clearbridge Investments, LLC: 643,435 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-12-31
13F 3,574,547 shares
Change vs previous 13F +366,804 shares
0.12% of the 13F portfolio, value $622,114,184.
13F-HR 0000038777-26-000055 filed by FRANKLIN RESOURCES INC
Filed 2026-02-11 (acceptance time not in the bulk data set), ingested 2026-10-07 03:01:36 UTC
- FRANKLIN RESOURCES INC: 2,755,536 shares
- Clearbridge Investments, LLC: 819,011 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-09-30
13F 3,207,743 shares
Change vs previous 13F -566,952 shares
0.09% of the 13F portfolio, value $461,947,048.
13F-HR 0000038777-25-000239 filed by FRANKLIN RESOURCES INC
Filed 2025-11-13 (acceptance time not in the bulk data set), ingested 2026-10-07 03:02:25 UTC
- FRANKLIN RESOURCES INC: 2,139,725 shares
- Clearbridge Investments, LLC: 1,068,018 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-06-30
13F 3,774,695 shares
Change vs previous 13F -202,317 shares
0.08% of the 13F portfolio, value $379,885,300.
13F-HR 0000038777-25-000153 filed by FRANKLIN RESOURCES INC
Filed 2025-08-12 (acceptance time not in the bulk data set), ingested 2026-10-07 18:23:11 UTC
- FRANKLIN RESOURCES INC: 2,350,133 shares
- Clearbridge Investments, LLC: 1,424,562 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2025-03-31
13F 3,977,012 shares
Change vs previous 13F -61,541 shares
0.07% of the 13F portfolio, value $303,406,251.
13F-HR 0000038777-25-000090 filed by FRANKLIN RESOURCES INC
Filed 2025-05-13 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:06 UTC
- FRANKLIN RESOURCES INC: 2,148,284 shares
- Clearbridge Investments, LLC: 1,828,728 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-12-31
13F 4,038,553 shares
Change vs previous 13F -491,603 shares
0.06% of the 13F portfolio, value $278,821,640.
13F-HR 0000038777-25-000026 filed by FRANKLIN RESOURCES INC
Filed 2025-02-12 (acceptance time not in the bulk data set), ingested 2026-10-07 18:25:55 UTC
- FRANKLIN RESOURCES INC: 2,160,103 shares
- Clearbridge Investments, LLC: 1,878,450 shares
Acceptance time not in the bulk data set (spec §4.2).
period ended2024-09-30
13F/A 4,530,156 shares
Change vs previous 13F not available
0.07% of the 13F portfolio, value $336,361,889.
13F-HR/A 0000038777-24-000215 filed by FRANKLIN RESOURCES INC
Filed 2024-11-27 (acceptance time not in the bulk data set), ingested 2026-10-07 18:26:56 UTC
- FRANKLIN RESOURCES INC: 2,721,389 shares
- Clearbridge Investments, LLC: 1,808,767 shares
Acceptance time not in the bulk data set (spec §4.2).