Who owns ASSEMBLY BIOSCIENCES, INC.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of ASMB from SEC Form 13F filings across 94 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, 94 institutions disclosed 18.8M shares of ASSEMBLY BIOSCIENCES, INC. worth $514.2M — about 99.6% of shares outstanding; the largest disclosed holder is GILEAD SCIENCES, INC.. Source: SEC Form 13F filings, parsed by EvidInvest.
94
13F holders
$514.2M
value, 2026 filers
99.6%
of shares outstanding (18.8M sh)
37
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 ASMB's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | GILEAD SCIENCES, INC. | 5.0M | $136.8M | 8.3% | 26.4% | +10.5% |
| 2 | FARALLON CAPITAL MANAGEMENT, L.L.C. | 1.6M | $44.1M | 0.2% | 8.5% | +30.7% |
| 3 | Paradigm Biocapital Advisors LP | 1.6M | $42.7M | 0.8% | 8.2% | +133.6% |
| 4 | Commodore Capital LP | 1.4M | $38.9M | 2.3% | 7.5% | +41.5% |
| 5 | RA CAPITAL MANAGEMENT, L.P. | 1.0M | $28.0M | 0.2% | 5.4% | 0.0% |
| 6 | Jupiter Topco LLCNEW | 849,309 | $23.4M | 0.0% | 4.5% | new |
| 7 | BlackRock, Inc. | 766,819 | $21.1M | 0.0% | 4.1% | +278.2% |
| 8 | Parkman Healthcare Partners LLC | 721,181 | $19.8M | 2.0% | 3.8% | +75.4% |
| 9 | VANGUARD CAPITAL MANAGEMENT LLC | 558,942 | $15.4M | 0.0% | 3% | +14.0% |
| 10 | Point72 Asset Management, L.P. | 460,593 | $12.7M | 0.0% | 2.4% | +33.9% |
| 11 | Seven Fleet Capital Management LP | 433,147 | $11.9M | 2.0% | 2.3% | +671.5% |
| 12 | MILLENNIUM MANAGEMENT LLC | 298,807 | $8.2M | 0.0% | 1.6% | +27.9% |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 280,424 | $7.7M | 0.0% | 1.5% | +110.9% |
| 14 | Schonfeld Strategic Advisors LLC | 242,153 | $6.7M | 0.0% | 1.3% | +101.0% |
| 15 | AMERIPRISE FINANCIAL INCNEW | 230,000 | $6.3M | 0.0% | 1.2% | new |
| 16 | DV EQUITIES, LLCNEW | 226,415 | $6.2M | 0.9% | 1.2% | new |
| 17 | Aberdeen Group plcNEW | 207,047 | $5.7M | 0.0% | 1.1% | new |
| 18 | Affinity Asset Advisors, LLCNEW | 190,000 | $5.2M | 0.2% | 1% | new |
| 19 | B Group, Inc. | 175,706 | $4.8M | 2.3% | 0.9% | 0.0% |
| 20 | STATE STREET CORP | 171,931 | $4.7M | 0.0% | 0.9% | +203.3% |
| 21 | STEMPOINT CAPITAL LP | 170,378 | $4.7M | 0.8% | 0.9% | -8.1% |
| 22 | Squadron Capital Management LLCNEW | 160,000 | $4.4M | 1.4% | 0.8% | new |
| 23 | Woodline Partners LPNEW | 150,780 | $4.1M | 0.0% | 0.8% | new |
| 24 | Driehaus Capital Management LLCNEW | 150,000 | $4.1M | 0.0% | 0.8% | new |
| 25 | Ally Bridge Group (NY) LLCNEW | 140,000 | $3.8M | 3.4% | 0.7% | 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.