Who owns Equillium (EQ)
Which tracked institutional funds hold EQ, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See EQ company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 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 EQ is one-sided between 2026-Q1 and 2026-Q2: 19 added or opened and 4 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
EQ’s largest tracked holder by dollar value, Jupiter Topco LLC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in EQ 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 59 tracked filers holding EQ, 35 increased or opened the position and 23 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
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 EQ 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 4
- Jupiter Topco LLC$21M
- STEMPOINT CAPITAL LP$6M
- Exome Asset Management LLC$2M
- DG Capital Management, LLC$1M
Full exits 2
- JANUS HENDERSON GROUP PLC$13M
- Hudson Bay Capital Management LP$857K
Largest adds
- Affinity Asset Advisors, LLC$11M
- Decheng Capital LLC$5M
- Aberdeen Group plc$5M
- ADAR1 Capital Management, LLC$5M
- Woodline Partners LP$4M
- RA CAPITAL MANAGEMENT, L.P.$4M
Largest trims
- ADAGE CAPITAL PARTNERS GP, L.L.C.$6M
- BALYASNY ASSET MANAGEMENT L.P.$2M
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 |
|---|---|---|---|---|
| Jupiter Topco LLC new | 6,494,571 | $21M | 13.5% | 2026-Q2 |
| Decheng Capital LLC | 4,447,308 | $14M | 9.3% | 2026-Q2 |
| Affinity Asset Advisors, LLC added | 4,100,000 | $13M | 8.6% | 2026-Q2 |
| ADAR1 Capital Management, LLC added | 3,758,569 | $12M | 7.9% | 2026-Q2 |
| Aberdeen Group plc added | 3,631,659 | $12M | 7.6% | 2026-Q2 |
| Woodline Partners LP | 3,500,901 | $11M | 7.3% | 2026-Q2 |
| RA CAPITAL MANAGEMENT, L.P. | 3,096,336 | $10M | 6.5% | 2026-Q2 |
| STEMPOINT CAPITAL LP added | 2,016,607 | $6M | 4.2% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 1,822,812 | $6M | 3.8% | 2026-Q2 |
| Eversept Partners, LP added | 1,520,824 | $5M | 3.2% | 2026-Q2 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. trimmed | 1,390,253 | $4M | 2.9% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 637,617 | $2M | 1.3% | 2026-Q2 |
| Exome Asset Management LLC new | 552,956 | $2M | 1.2% | 2026-Q2 |
| DG Capital Management, LLC new | 463,396 | $1M | 1.0% | 2026-Q2 |
| DIADEMA PARTNERS LP trimmed | 400,282 | $1M | 0.8% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 381,175 | $1M | 0.8% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 344,409 | $1M | 0.7% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL added | 320,100 | $1M | 0.7% | 2026-Q2 |
| Ikarian Capital, LLC | 303,555 | $971K | 0.6% | 2026-Q2 |
| BlackRock, Inc. added | 285,409 | $913K | 0.6% | 2026-Q2 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 284,330 | $910K | 0.6% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 206,853 | $662K | 0.4% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 190,810 | $611K | 0.4% | 2026-Q2 |
| STATE STREET CORP | 174,060 | $557K | 0.4% | 2026-Q2 |
| CANTOR FITZGERALD, L. P. trimmed | 109,062 | $349K | 0.2% | 2026-Q2 |
| Persistent Asset Partners Ltd trimmed | 102,010 | $326K | 0.2% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 99,662 | $319K | 0.2% | 2026-Q2 |
| JANE STREET GROUP, LLC trimmed | 95,214 | $305K | 0.2% | 2026-Q2 |
| Soleus Capital Management, L.P. new | 90,000 | $288K | 0.2% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC new | 75,260 | $241K | 0.2% | 2026-Q2 |
| NORTHERN TRUST CORP added | 71,559 | $229K | 0.1% | 2026-Q2 |
| AlphaCore Capital LLC | 52,345 | $168K | 0.1% | 2026-Q2 |
| ExodusPoint Capital Management, LP new | 44,189 | $141K | 0.1% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 42,838 | $137K | 0.1% | 2026-Q2 |
| XTX Topco Ltd trimmed | 39,263 | $126K | 0.1% | 2026-Q2 |
| Invesco Ltd. new | 36,291 | $116K | 0.1% | 2026-Q2 |
| BARCLAYS PLC added | 35,000 | $112K | 0.1% | 2026-Q2 |
| Jefferies Financial Group Inc. new | 34,100 | $109K | 0.1% | 2026-Q2 |
| High Net Worth Advisory Group LLC new | 33,500 | $107K | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 32,695 | $105K | 0.1% | 2026-Q2 |
| MORGAN STANLEY added | 29,887 | $96K | 0.1% | 2026-Q2 |
| Quadrature Capital Ltd trimmed | 28,655 | $92K | 0.1% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC new | 25,895 | $83K | 0.1% | 2026-Q2 |
| China Universal Asset Management Co., Ltd. new | 25,000 | $80K | 0.1% | 2026-Q2 |
| UBS Group AG added | 22,932 | $73K | 0.0% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 21,211 | $68K | 0.0% | 2026-Q2 |
| Chung Wu Investment Group, LLC new | 16,500 | $53K | 0.0% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP | 15,333 | $49K | 0.0% | 2026-Q2 |
| Coastal Bridge Advisors, LLC added | 15,000 | $48K | 0.0% | 2026-Q2 |
| Apollon Wealth Management, LLC | 13,875 | $44K | 0.0% | 2026-Q2 |
| Focus Partners Wealth new | 13,013 | $42K | 0.0% | 2026-Q2 |
| TWO SIGMA SECURITIES, LLC added | 10,797 | $35K | 0.0% | 2026-Q2 |
| Vanguard Global Advisers, LLC | 5,826 | $19K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) added | 2,385 | $8K | 0.0% | 2026-Q2 |
| GROUP ONE TRADING LLC trimmed | 2,238 | $7K | 0.0% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN | 1,000 | $3K | 0.0% | 2026-Q2 |
| JONES FINANCIAL COMPANIES LLLP added | 500 | $2K | 0.0% | 2026-Q2 |
| Caitong International Asset Management Co., Ltd added | 234 | $749 | 0.0% | 2026-Q2 |
| SBI Securities Co., Ltd. trimmed | 68 | $218 | 0.0% | 2026-Q2 |
| JANUS HENDERSON GROUP PLC added | 6,494,571 | $13M | 8.5% | 2026-Q1 stale (1 quarter behind) |
| Hudson Bay Capital Management LP | 428,538 | $857K | 0.6% | 2026-Q1 stale (1 quarter behind) |
| MARSHALL WACE, LLP added | 57,632 | $115K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| OMERS ADMINISTRATION Corp new | 50,037 | $100K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Rockefeller Capital Management L.P. new | 14,286 | $29K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| AXQ CAPITAL, LP new | 11,935 | $24K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Squarepoint Ops LLC new | 10,025 | $20K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| FMR LLC added | 360 | $720 | 0.0% | 2026-Q1 stale (1 quarter behind) |
| ROYAL BANK OF CANADA trimmed | 105 | — | 0.0% | 2026-Q1 stale (1 quarter behind) |
| VANGUARD GROUP INC added | 1,920,423 | $3M | 1.9% | 2025-Q4 stale (2 quarters behind) |
| TWO SIGMA ADVISERS, LP new | 44,100 | $68K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| Schonfeld Strategic Advisors LLC trimmed | 25,381 | $39K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| BANK OF AMERICA CORP /DE/ added | 295 | $457 | 0.0% | 2025-Q4 stale (2 quarters behind) |
| TAKEDA PHARMACEUTICAL CO LTD | 1,824,977 | $3M | 1.7% | 2025-Q3 stale (3 quarters behind) |
| Engineers Gate Manager LP new | 39,739 | $57K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| PRUDENTIAL FINANCIAL INC trimmed | 28,300 | $40K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| Virtu Financial LLC added | 23,779 | $34K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| SIMPLEX TRADING, LLC trimmed | 1,922 | $2K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| Rise Advisors, LLC new | 263 | $376 | 0.0% | 2025-Q3 stale (3 quarters behind) |
| Cota Capital Management, LLC | 562,278 | $177K | 0.1% | 2025-Q2 stale (4 quarters behind) |
| ACADIAN ASSET MANAGEMENT LLC trimmed | 39,475 | $12K | 0.0% | 2025-Q2 stale (4 quarters behind) |
| COMMONWEALTH EQUITY SERVICES, LLC | 25,000 | $8K | 0.0% | 2025-Q2 stale (4 quarters behind) |
| Ground Swell Capital, LLC new | 16,550 | $5K | 0.0% | 2025-Q2 stale (4 quarters behind) |
| Baader Bank Aktiengesellschaft new | 23,711 | $5K | 0.0% | 2025-Q2 stale (4 quarters behind) |
| TRITONPOINT WEALTH, LLC | 13,500 | $4K | 0.0% | 2025-Q2 stale (4 quarters behind) |
| JPMORGAN CHASE & CO added | 1,108 | $349 | 0.0% | 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.