21 institutions reported holding $27.6M of INSMED INC (INSM) in SEC 13F filings for 2026-06-30. Largest institutional holders: Assenagon Asset Management S.A. ($23.3M), PensionDanmark Pensionsforsikringsaktieselskab ($3.3M), Avior Wealth Management, LLC ($523,798), GAMMA Investing LLC ($188,291), FNY Investment Advisers, LLC ($138,000). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Assenagon Asset Management S.A. | $23.3M | 218,270 | Added |
| 2 | PensionDanmark Pensionsforsikringsaktieselskab | $3.3M | 31,393 | New |
| 3 | Avior Wealth Management, LLC | $523,798 | 4,913 | Added |
| 4 | GAMMA Investing LLC | $188,291 | 1,766 | Trimmed |
| 5 | FNY Investment Advisers, LLC | $138,000 | 1,300 | New |
| 6 | HARBOR INVESTMENT ADVISORY, LLC | $51,817 | 486 | New |
| 7 | Versant Capital Management, Inc | $31,560 | 296 | Trimmed |
| 8 | Hilltop National Bank | $19,938 | 187 | Trimmed |
| 9 | MassMutual Private Wealth & Trust, FSB | $18,445 | 173 | Trimmed |
| 10 | Cedar Mountain Advisors, LLC | $12,581 | 118 | Hold |
| 11 | Arlington Trust Co LLC | $4,691 | 44 | New |
| 12 | ELEVATION WEALTH PARTNERS, LLC | $3,626 | 34 | New |
| 13 | Dogwood Wealth Management LLC | $3,412 | 32 | Trimmed |
| 14 | BEACON INVESTMENT ADVISORY SERVICES, INC. | $2,559 | 24 | New |
| 15 | THURSTON, SPRINGER, MILLER, HERD & TITAK, INC. | $2,132 | 20 | Hold |
| 16 | Retirement Wealth Solutions LLC | $1,920 | 18 | Trimmed |
| 17 | Grove Bank & Trust | $1,706 | 16 | Trimmed |
| 18 | Roxbury Financial LLC | $1,599 | 15 | Hold |
| 19 | CoreCap Advisors, LLC | $746 | 7 | Added |
| 20 | Cooper Financial Group | $0 | 0 | Exited |
| 21 | CX Institutional | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30