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GW&K Investment Management, LLC

Position in INSM — INSMED Inc

CIK 1082917 BOSTON, MA

Position in INSM

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$67,145,010
-$34,735,798 QoQ
Shares Held
629,760
+1.1% QoQ
Ownership
0.288%
of shares outstanding
% of Portfolio
0.53%
of 13F equity value
Holder Rank
#65
of 665 holders
Holding Since
Dec 2020
23 quarters on record
Voting authority Sole 94% Shared 6% None 0%

Common Shares in INSM Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

GW&K Investment Management, LLC holds $876,997,841 across 27 Biotechnology names. INSM ranks #7 (7.7% of the industry book) .

# Ticker Company Shares Value (USD) Open
7 INSM
INSMED Inc
This page
629,760 $67,145,010

All Filings in INSM

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23 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $67,145,010 629,760
2026-03-31 $101,880,808 623,048
2025-12-31 $84,003,886 482,670
2025-09-30 $86,665,649 601,803
2025-06-30 $128,247,161 1,274,316
2025-03-31 $105,106,715 1,377,726
2024-12-31 $78,387,531 1,135,393
2024-09-30 $84,206,595 1,153,515
2024-06-30 $51,036,044 761,732
2024-03-31 $34,452,332 1,269,898
2023-12-31 $40,032,013 1,291,772
2023-09-30 $34,144,791 1,352,269
2023-06-30 $28,553,870 1,353,264
2023-03-31 $22,250,488 1,305,014
2022-12-31 $19,895,623 995,777
2022-09-30 $5,184,699 240,701
2022-06-30 $4,805,330 243,678
2022-03-31 $5,794,818 246,588
2021-12-31 $6,799,458 249,613
2021-09-30 $6,269,756 227,660
2021-06-30 $4,376,863 153,790
2021-03-31 $5,352,529 157,150
2020-12-31 $5,268,109 158,249