Insmed Incorporated
US ˙ NasdaqGS ˙ US4576693075

SecurityINSM / Insmed Incorporated
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership400,900 shares
Latest Disclosed Value $ 65,473,691
Dimensional Fund Advisors Lp reports 0.46% increase in ownership of INSM / Insmed Incorporated

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 400,900 shares of Insmed Incorporated (US:INSM) valued at $65,555,168 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 399,073 shares of Insmed Incorporated. This represents a change in shares of 0.46% during the quarter. The current value of the position is $41,637,474 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F INSMED COM PAR $.01 457669307 400,900 1,827 0.46 65,474 -5.73 0.0029
2026-02-12 2025-12-31 13F INSMED COM PAR $.01 457669307 399,073 12,402 3.21 69,455 24.77 0.0146
2025-11-12 2025-09-30 13F INSMED COM PAR $.01 457669307 386,671 -25,073 -6.09 55,666 34.37 0.0119
2025-08-12 2025-06-30 13F INSMED COM PAR $.01 457669307 411,744 39,744 10.68 41,429 45.91 0.0096
2025-05-13 2025-03-31 13F INSMED COM PAR $.01 457669307 372,000 21,061 6.00 28,393 17.20 0.0071
2025-02-13 2024-12-31 13F INSMED COM PAR $.01 457669307 350,939 -16,313 -4.44 24,227 -9.62 0.0058
2024-11-07 2024-09-30 13F INSMED COM PAR $.01 457669307 367,252 355,163 2,937.90 26,805 3,213.35 0.0065
2024-08-09 2024-06-30 13F INSMED COM PAR $.01 457669307 12,089 12,089 810 0.0002
2024-05-10 2024-03-31 13F INSMED COM PAR $.01 457669307 0 -73,073 -100.00 0 -100.00
2024-02-07 2023-12-31 13F INSMED COM PAR $.01 457669307 73,073 954 1.32 2,265 24.33 0.0007
2023-11-09 2023-09-30 13F INSMED COM PAR $.01 457669307 72,119 1,057 1.49 1,821 21.48 0.0006
2023-08-09 2023-06-30 13F INSMED COM PAR $.01 457669307 71,062 -811 -1.13 1,499 22.37 0.0005
2023-05-12 2023-03-31 13F INSMED COM PAR $.01 457669307 71,873 -7,268 -9.18 1,225 122,400.00 0.0004
2023-02-09 2022-12-31 13F INSMED COM PAR $.01 457669307 79,141 -31,271 -28.32 2 -99.96 0.0005
2022-11-10 2022-09-30 13F INSMED COM PAR $.01 457669307 110,412 -74,639 -40.33 2,378 -34.85 0.0009
2022-08-12 2022-06-30 13F INSMED COM PAR $.01 457669307 185,051 -439,258 -70.36 3,650 -75.12 0.0013
2022-05-13 2022-03-31 13F INSMED COM 457669307 624,309 215,093 52.56 14,670 31.60 0.0045
2022-02-09 2021-12-31 13F INSMED COM 457669307 409,216 293,890 254.83 11,147 251.09 0.0034
2021-11-12 2021-09-30 13F INSMED COM 457669307 115,326 115,326 3,175 0.0010
2020-11-12 2020-09-30 13F INSMED COM 457669307 0 -205,940 -100.00 0 -100.00
2020-08-13 2020-06-30 13F INSMED COM 457669307 205,940 -66,106 -24.30 5,672 30.06 0.0025
2020-05-14 2020-03-31 13F INSMED COM 457669307 272,046 -13,190 -4.62 4,361 -35.97 0.0023
2020-02-14 2019-12-31 13F INSMED COM 457669307 285,236 22,905 8.73 6,811 47.17 0.0025
2019-11-12 2019-09-30 13F INSMED COM 457669307 262,331 -448,008 -63.07 4,628 -74.55 0.0018
2019-08-13 2019-06-30 13F INSMED COM 457669307 710,339 -20,347 -2.78 18,184 -14.39 0.0071
2019-08-12 2019-03-31 13F/A-2 INSMED COM 457669307 730,686 -51,928 -6.64 21,240 106.86 0.0085
2019-05-10 2019-03-31 13F INSMED COM 457669307 730,686 -51,928 21,240
2019-02-26 2018-12-31 13F/A-1 INSMED COM 457669307 782,614 565,297 260.13 10,268 133.58 0.0047
2019-02-13 2018-12-31 13F INSMED COM 457669307 782,614 565,297 10,268
2018-11-13 2018-09-30 13F INSMED COM 457669307 217,317 212,981 4,911.92 4,396 5,840.54 0.0017
2014-02-12 2013-12-31 13F INSMED COM 457669307 4,336 0 0.00 74 8.82 0.0001
2013-11-13 2013-09-30 13F INSMED COM 457669307 4,336 -200 -4.41 68 25.93 0.0001
2013-08-15 2013-06-30 13F INSMED COM 457669307 4,536 4,536 54 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.