Who owns Parabilis Medicines, Inc.?
Institutional ownership of PBLS from SEC Form 13F filings across 52 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.
52
13F holders
$678.1M
value, 2026 filers
21.8%
of shares outstanding (25.5M sh)
52
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 | FMR LLCNEW | 10.3M | $281.7M | 0.0% | 8.8% | new |
| 2 | Alphabet Inc.NEW | 4.9M | $134.6M | 0.1% | 4.2% | new |
| 3 | Jupiter Topco LLCNEW | 2.3M | $62.7M | 0.0% | 2% | new |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLCNEW | 1.3M | $35.6M | 0.0% | 1.1% | new |
| 5 | VANGUARD CAPITAL MANAGEMENT LLCNEW | 1.2M | $31.7M | 0.0% | 1% | new |
| 6 | JPMORGAN CHASE & CONEW | 1.0M | $30.4M | 0.0% | 0.9% | new |
| 7 | Catalio Capital Management, LPNEW | 824,043 | $22.6M | 4.2% | 0.7% | new |
| 8 | ALLIANCEBERNSTEIN L.P.NEW | 810,279 | $22.2M | 0.0% | 0.7% | new |
| 9 | PRICE T ROWE ASSOCIATES INC /MD/NEW | 751,947 | $20,581 | 0.0% | 0.6% | new |
| 10 | MARSHALL WACE, LLPNEW | 445,359 | $12.2M | 0.0% | 0.4% | new |
| 11 | FRANKLIN RESOURCES INCNEW | 381,487 | $10.4M | 0.0% | 0.3% | new |
| 12 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/NEW | 295,962 | $8.1M | 0.0% | 0.3% | new |
| 13 | FEDERATED HERMES, INC.NEW | 246,200 | $6.7M | 0.0% | 0.2% | new |
| 14 | AMERIPRISE FINANCIAL INCNEW | 174,773 | $4.8M | 0.0% | 0.1% | new |
| 15 | GEODE CAPITAL MANAGEMENT, LLCNEW | 99,358 | $2.7M | 0.0% | 0.1% | new |
| 16 | TD Asset Management IncNEW | 76,982 | $2.1M | 0.0% | 0.1% | new |
| 17 | Squarepoint Ops LLCNEW | 48,484 | $1.3M | 0.0% | 0% | new |
| 18 | TUDOR INVESTMENT CORP ET ALNEW | 44,045 | $1.2M | 0.0% | 0% | new |
| 19 | UBS Group AGNEW | 38,698 | $1.1M | 0.0% | 0% | new |
| 20 | VANGUARD FIDUCIARY TRUST CONEW | 27,800 | $760,886 | 0.0% | 0% | new |
| 21 | Balyasny Asset Management L.P.NEW | 24,264 | $664,106 | 0.0% | 0% | new |
| 22 | Hudson Bay Capital Management LPNEW | 22,690 | $621,025 | 0.0% | 0% | new |
| 23 | Brevan Howard Capital Management LPNEW | 22,565 | $617,604 | 0.0% | 0% | new |
| 24 | Ghisallo Capital Management LLCNEW | 20,000 | $547,400 | 0.0% | 0% | new |
| 25 | Mitsubishi UFJ Asset Management Co., Ltd.NEW | 19,200 | $525,504 | 0.0% | 0% | 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.