Insmed Incorporated
US ˙ NasdaqGS ˙ US4576693075

SecurityINSM / Insmed Incorporated
InstitutionFox Run Management, L.l.c.
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Fox Run Management, L.l.c. closes position in INSM / Insmed Incorporated

On February 11, 2026 - Fox Run Management, L.l.c. filed a 13F-HR form disclosing ownership of 0 shares of Insmed Incorporated (US:INSM) valued at $0 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 12, 2025 disclosing 5,012 shares of Insmed Incorporated. The current value of the position is $0 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.

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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)
2026-02-11 2025-12-31 13F INSMED COM PAR $.01 457669307 0 -100.00 0
2025-11-12 2025-09-30 13F INSMED COM PAR $.01 457669307 5,012 5,012 722 0.1125
2025-02-11 2024-12-31 13F INSMED COM PAR $.01 457669307 0 -4,366 -100.00 0 -100.00
2024-11-12 2024-09-30 13F INSMED COM PAR $.01 457669307 4,366 4,366 319 0.0709
2024-08-13 2024-06-30 13F INSMED COM PAR $.01 457669307 0 -16,416 -100.00 0 -100.00
2024-05-13 2024-03-31 13F INSMED COM PAR $.01 457669307 16,416 16,416 445 0.0960
2023-02-07 2022-12-31 13F INSMED COM PAR $.01 457669307 0 -23,174 -100.00 0 -100.00
2022-11-07 2022-09-30 13F INSMED COM PAR $.01 457669307 23,174 23,174 499 0.1941
2020-05-08 2020-03-31 13F INSMED COM PAR $.01 457669307 0 -14,389 -100.00 0 -100.00
2020-02-14 2019-12-31 13F INSMED COM PAR $.01 457669307 14,389 -738 -4.88 344 -11.11 0.2769
2019-10-11 2019-09-30 13F INSMED COM PAR $.01 457669307 15,127 0 0.00 387 0.00 0.2570
2019-07-17 2019-06-30 13F INSMED COM PAR $.01 457669307 15,127 15,127 387 0.2570
2018-10-05 2018-09-30 13F INSMED COM PAR $.01 457669307 0 -19,894 -100.00 0 -100.00
2018-07-17 2018-06-30 13F INSMED COM PAR $.01 457669307 19,894 19,894 470 0.1491
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.