9 institutions reported holding $1.1M of PTC THERAPEUTICS INC (PTCT) in SEC 13F filings for 2026-06-30. Largest institutional holders: Assenagon Asset Management S.A. ($562,751), Avior Wealth Management, LLC ($308,335), GAMMA Investing LLC ($118,521), HARBOR INVESTMENT ADVISORY, LLC ($80,510), MassMutual Private Wealth & Trust, FSB ($2,855). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Assenagon Asset Management S.A. | $562,751 | 6,899 | Trimmed |
| 2 | Avior Wealth Management, LLC | $308,335 | 3,780 | New |
| 3 | GAMMA Investing LLC | $118,521 | 1,453 | Added |
| 4 | HARBOR INVESTMENT ADVISORY, LLC | $80,510 | 987 | New |
| 5 | MassMutual Private Wealth & Trust, FSB | $2,855 | 35 | Added |
| 6 | Versant Capital Management, Inc | $2,284 | 28 | Hold |
| 7 | Noble Wealth Management PBC | $816 | 10 | New |
| 8 | Cedar Mountain Advisors, LLC | $245 | 3 | New |
| 9 | Central Pacific Bank - Trust Division | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30