INSMED INC

Ticker: INSM CUSIP: 457669307 Class: EQTY

WESTFIELD CAPITAL MANAGEMENT CO LP's Holding History (CIK: 0001177719)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 432,521 Value ($000) $75,276 Avg Close $182.48 Range $143.18 - $212.75
Q3 2025
Shares 487,927 Value ($000) $70,266 Avg Close $122.51 Range $95.01 - $149.08
Q2 2025
Shares 1,339,288 Value ($000) $134,786 Avg Close $76.46 Range $60.40 - $106.83
Q1 2025
Shares 1,406,609 Value ($000) $107,310 Avg Close $76.49 Range $61.50 - $84.91
Q4 2024
Shares 938,551 Value ($000) $64,798 Avg Close $72.02 Range $64.86 - $78.83
Q3 2024
Shares 251,739 Value ($000) $18,377 Avg Close $73.80 Range $61.52 - $80.53
Q2 2021
Shares 967,079 Value ($000) $27,523 Avg Close $29.68 Range $23.95 - $36.97
Q1 2021
Shares 1,023,212 Value ($000) $34,851 Avg Close $38.22 Range $31.69 - $45.44
Q4 2020
Shares 1,278,676 Value ($000) $42,567 Avg Close $36.53 Range $30.03 - $42.71
Q3 2020
Shares 1,332,488 Value ($000) $42,826 Avg Close $28.74 Range $25.21 - $35.32
Q2 2020
Shares 1,036,711 Value ($000) $28,551 Avg Close $23.71 Range $13.77 - $30.18