Who owns Entera Bio (ENTX)
Which tracked institutional funds hold ENTX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ENTX company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-08-17). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on ENTX is one-sided between 2026-Q1 and 2026-Q2: 4 added or opened and 0 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
ENTX’s largest tracked holder by dollar value, Knoll Capital Management, LLC, sizes it at 5.8% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 5.8pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in ENTX divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 23 tracked filers holding ENTX, 11 increased or opened the position and 14 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in ENTX between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 2
- BVF INC/IL$4M
- Siren, L.L.C.$1M
Largest adds
- Knoll Capital Management, LLC$4M
- PNC Financial Services Group, Inc.$472K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Knoll Capital Management, LLC | 5,881,879 | $10M | 53.1% | 2026-Q2 |
| BVF INC/IL new | 2,425,000 | $4M | 21.9% | 2026-Q2 |
| Siren, L.L.C. new | 736,457 | $1M | 6.6% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 368,847 | $653K | 3.3% | 2026-Q2 |
| Parkman Healthcare Partners LLC trimmed | 274,497 | $486K | 2.5% | 2026-Q2 |
| PNC Financial Services Group, Inc. added | 273,031 | $483K | 2.5% | 2026-Q2 |
| Seven Fleet Capital Management LP trimmed | 191,354 | $339K | 1.7% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC added | 58,871 | $104K | 0.5% | 2026-Q2 |
| TWO SIGMA SECURITIES, LLC added | 48,593 | $86K | 0.4% | 2026-Q2 |
| SIGNATURE ESTATE & INVESTMENT ADVISORS LLC | 47,328 | $84K | 0.4% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 38,804 | $69K | 0.4% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 40,883 | $67K | 0.3% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 29,908 | $53K | 0.3% | 2026-Q2 |
| DIADEMA PARTNERS LP | 23,260 | $41K | 0.2% | 2026-Q2 |
| XTX Topco Ltd trimmed | 20,559 | $36K | 0.2% | 2026-Q2 |
| Gem Investment Advisors, LLC | 19,135 | $34K | 0.2% | 2026-Q2 |
| JANE STREET GROUP, LLC trimmed | 17,331 | $31K | 0.2% | 2026-Q2 |
| SIMPLEX TRADING, LLC added | 15,698 | $28K | 0.1% | 2026-Q2 |
| UBS Group AG added | 12,723 | $23K | 0.1% | 2026-Q2 |
| Persistent Asset Partners Ltd | 5,881 | $10K | 0.1% | 2026-Q2 |
| MORGAN STANLEY added | 500 | $885 | 0.0% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS new | 400 | $708 | 0.0% | 2026-Q2 |
| GROUP ONE TRADING LLC | 51 | $90 | 0.0% | 2026-Q2 |
| MARSHALL WACE, LLP trimmed | 195,780 | $217K | 1.1% | 2026-Q1 stale (1 quarter behind) |
| NORTHERN TRUST CORP trimmed | 146,854 | $163K | 0.8% | 2026-Q1 stale (1 quarter behind) |
| HighTower Advisors, LLC trimmed | 36,830 | $41K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| HRT FINANCIAL LP new | 15,492 | $17K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Point72 Asset Management, L.P. trimmed | 12,382 | $14K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| BANK OF AMERICA CORP /DE/ trimmed | 12,000 | $13K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Caitong International Asset Management Co., Ltd new | 20 | $22 | 0.0% | 2026-Q1 stale (1 quarter behind) |
| SBI Securities Co., Ltd. added | 2 | $2 | 0.0% | 2026-Q1 stale (1 quarter behind) |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 64,910 | $126K | 0.6% | 2025-Q4 stale (2 quarters behind) |
| SUPERSTRING CAPITAL MANAGEMENT LP new | 17,142 | $33K | 0.2% | 2025-Q4 stale (2 quarters behind) |
| GOLDMAN SACHS GROUP INC new | 12,327 | $24K | 0.1% | 2025-Q4 stale (2 quarters behind) |
| GSA CAPITAL PARTNERS LLP new | 11,890 | $23K | 0.1% | 2025-Q4 stale (2 quarters behind) |
| BESSEMER GROUP INC | 140,843 | $270K | 1.4% | 2025-Q3 stale (3 quarters behind) |
| Cubist Systematic Strategies, LLC added | 4,673 | $9K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| NewEdge Advisors, LLC | 9,000 | $17K | 0.1% | 2025-Q2 stale (4 quarters behind) |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale (4 quarters behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.