Position in INSM
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$76,331,603
-$28,882,888 QoQ
Shares Held
715,922
+11.3% QoQ
Ownership
0.328%
of shares outstanding
% of Portfolio
0.06%
of 13F equity value
Holder Rank
#58
of 663 holders
Holding Since
Mar 2020
12 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in INSM Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026Clearbridge Investments, LLC holds $2,924,434,154 across 28 Biotechnology names. INSM ranks #7 (2.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
2,342,915 | $1,163,796,167 | |
| 2 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
1,259,483 | $379,142,167 | |
| 3 | ARGX |
Argenx SE
|
253,776 | $235,445,759 | |
| 4 | TGTX |
Tg Therapeutics, Inc.
|
2,650,192 | $145,601,548 | |
| 5 | PTGX |
Protagonist Therapeutics, Inc
|
725,335 | $88,911,564 | |
| 6 | RYTM |
Rhythm Pharmaceuticals, Inc.
|
696,473 | $77,329,397 | |
| 7 | INSM |
INSMED Inc
This page
|
715,922 | $76,331,603 | |
| 8 | MIRM |
Mirum Pharmaceuticals, Inc.
|
639,734 | $74,893,659 |
All Filings in INSM
Export CSV
12 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $76,331,603 | 715,922 | Shares | Sole | 2026-08-13 | |
| 2026-03-31 | $105,214,491 | 643,435 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $142,540,674 | 819,011 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $153,805,272 | 1,068,018 | Shares | Sole | 2025-11-13 | |
| 2025-06-30 | $143,367,919 | 1,424,562 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $139,513,659 | 1,828,728 | Shares | Sole | 2025-05-13 | |
| 2024-12-31 | $129,688,188 | 1,878,450 | Shares | Sole | 2025-02-12 | |
| 2024-09-30 | $132,039,991 | 1,808,767 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $110,211,516 | 1,644,948 | Shares | Sole | 2024-08-27 | |
| 2024-03-31 | $25,241,996 | 930,409 | Shares | Sole | 2024-05-13 | |
| 2020-06-30 | $18,947 | 688 | Shares | Defined | 2020-08-14 | |
| 2020-03-31 | $11,028 | 688 | Shares | Defined | 2020-05-22 | |
| No filing history on record for this holder in this stock. | ||||||