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RHUMBLINE ADVISERS

Position in INSM — INSMED Inc

CIK 1115418 BOSTON, MA

Position in INSM

as of Mar 31, 2026 · filed May 12, 2026
Position Value
$44,578,004
-$2,121,453 QoQ
Shares Held
272,615
+1.6% QoQ
Ownership
0.126%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 46.07963611686811.ToString("F0")% Shared 0.ToString("F0")% None 53.92036388313189.ToString("F0")%

Common Shares in INSM Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

RHUMBLINE ADVISERS holds $1,238,262,141 across 282 Biotechnology names. INSM ranks #5 (3.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
5 INSM
INSMED Inc
This page
272,615 $44,578,004

All Filings in INSM

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $44,578,004 272,615
2025-12-31 $46,699,457 268,326
2025-09-30 $30,660,161 212,903
2025-06-30 $20,967,840 208,345
2025-03-31 $23,158,363 303,557
2024-12-31 $19,906,786 288,337
2024-09-30 $19,202,285 263,045
2024-06-30 $15,847,309 236,527
2024-03-31 $5,633,870 207,662
2023-12-31 $6,312,539 203,696
2023-09-30 $4,990,485 197,643
2023-06-30 $4,084,158 193,562
2023-03-31 $3,199,807 187,672
2022-12-31 $3,643,652 182,365
2022-09-30 $3,448,790 160,111
2022-06-30 $2,883,833 146,239
2022-03-31 $3,002,759 127,777
2021-12-31 $3,324,750 122,054
2021-09-30 $3,372,603 122,462
2021-06-30 $3,297,404 115,861
2021-03-31 $4,098,439 120,330
2020-12-31 $4,486,360 134,766
2020-09-30 $4,194,816 130,517
2020-06-30 $4,410,861 160,162
2020-03-31 $2,051,391 127,972