Who owns Parabilis Medicines, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of PBLS from SEC Form 13F filings across 79 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 79 institutions disclosed 99.0M shares of Parabilis Medicines, Inc. worth $2.71B — about 342.3% of shares outstanding; the largest disclosed holder is RA CAPITAL MANAGEMENT, L.P.. Source: SEC Form 13F filings, parsed by EvidInvest.
79
13F holders
$2.71B
value, 2026 filers
342.3%
of shares outstanding (99.0M sh)
79
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of PBLS's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | RA CAPITAL MANAGEMENT, L.P.NEW | 28.9M | $791.9M | 6.9% | 100.1% | new |
| 2 | FMR LLCNEW | 10.3M | $281.7M | 0.0% | 35.6% | new |
| 3 | ARCH Venture Management, LLCNEW | 6.4M | $175.5M | 16.0% | 22.2% | new |
| 4 | venBio Partners LLCNEW | 5.3M | $144.1M | 27.8% | 18.2% | new |
| 5 | Alphabet Inc.NEW | 4.9M | $134.6M | 0.1% | 17% | new |
| 6 | Nextech Invest Ltd.NEW | 4.7M | $127.6M | 6.1% | 16.1% | new |
| 7 | Cormorant Asset Management, LPNEW | 4.6M | $126.3M | 6.5% | 16% | new |
| 8 | REGENERON PHARMACEUTICALS, INC.NEW | 4.2M | $114.0M | 64.4% | 14.4% | new |
| 9 | Siren, L.L.C.NEW | 3.0M | $81.9M | 1.7% | 10.4% | new |
| 10 | FARALLON CAPITAL MANAGEMENT, L.L.C.NEW | 2.4M | $64.8M | 0.3% | 8.2% | new |
| 11 | Jupiter Topco LLCNEW | 2.3M | $62.7M | 0.0% | 7.9% | new |
| 12 | Frazier Life Sciences Management, L.P.NEW | 1.9M | $52.6M | 1.1% | 6.6% | new |
| 13 | DEERFIELD MANAGEMENT COMPANY, L.P.NEW | 1.9M | $51.5M | 0.5% | 6.5% | new |
| 14 | General Catalyst Group Management, LLCNEW | 1.6M | $43.8M | 23.2% | 5.5% | new |
| 15 | GENERAL ATLANTIC, L.P.NEW | 1.5M | $42.1M | 1.4% | 5.3% | new |
| 16 | Soleus Capital Management, L.P.NEW | 1.5M | $40.1M | 1.4% | 5.1% | new |
| 17 | VANGUARD PORTFOLIO MANAGEMENT LLCNEW | 1.3M | $35.6M | 0.0% | 4.5% | new |
| 18 | VANGUARD CAPITAL MANAGEMENT LLCNEW | 1.2M | $31.7M | 0.0% | 4% | new |
| 19 | JPMORGAN CHASE & CONEW | 1.0M | $30.4M | 0.0% | 3.6% | new |
| 20 | Foresite Capital Management VI LLCNEW | 999,044 | $27.3M | 4.3% | 3.5% | new |
| 21 | Catalio Capital Management, LPNEW | 824,043 | $22.6M | 4.2% | 2.9% | new |
| 22 | ALLIANCEBERNSTEIN L.P.NEW | 810,279 | $22.2M | 0.0% | 2.8% | new |
| 23 | PRICE T ROWE ASSOCIATES INC /MD/NEW | 751,947 | $20.6M | 0.0% | 2.6% | new |
| 24 | Casdin Capital, LLCNEW | 645,690 | $17.7M | 0.9% | 2.2% | new |
| 25 | Venrock Adviser, LLCNEW | 625,000 | $17.1M | 0.5% | 2.2% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.