Who owns Eledon Pharmaceuticals (ELDN)
Which tracked institutional funds hold ELDN, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ELDN 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 ELDN is one-sided between 2026-Q1 and 2026-Q2: 32 added or opened and 6 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
ELDN’s largest tracked holder by dollar value, BVF INC/IL, sizes it at 0.6% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.6pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in ELDN 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 156 tracked filers holding ELDN, 109 increased or opened the position and 36 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 ELDN 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 3
- MILLENNIUM MANAGEMENT LLC$4M
- Triumph Capital Management$1M
- CITADEL ADVISORS LLC$851K
Full exits 3
- Jefferies Financial Group Inc.$3M
- Sanofi$3M
- SG Americas Securities, LLC$2M
Largest adds
- GOLDMAN SACHS GROUP INC$9M
- BlackRock, Inc.$7M
- BVF INC/IL$5M
- VANGUARD CAPITAL MANAGEMENT LLC$3M
- Defilade Capital Management, L.P.$3M
- STATE STREET CORP$3M
Largest trims
- Blue Owl Capital Holdings LP$2M
- SPHERA FUNDS MANAGEMENT LTD.$765K
- ADAR1 Capital Management, LLC$449K
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BVF INC/IL | 6,293,282 | $25M | 13.5% | 2026-Q2 |
| BlackRock, Inc. added | 5,123,842 | $20M | 11.0% | 2026-Q2 |
| Defilade Capital Management, L.P. trimmed | 3,525,338 | $14M | 7.6% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 3,417,223 | $13M | 7.4% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 2,510,308 | $10M | 5.4% | 2026-Q2 |
| Ensign Peak Advisors, Inc trimmed | 2,101,224 | $8M | 4.5% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,956,601 | $8M | 4.2% | 2026-Q2 |
| Catalio Capital Management, LP added | 1,695,071 | $7M | 3.6% | 2026-Q2 |
| STATE STREET CORP added | 1,621,969 | $6M | 3.5% | 2026-Q2 |
| Zimmer Partners, LP trimmed | 1,596,599 | $6M | 3.4% | 2026-Q2 |
| SPHERA FUNDS MANAGEMENT LTD. trimmed | 1,191,187 | $5M | 2.6% | 2026-Q2 |
| AWM Investment Company, Inc. | 1,100,000 | $4M | 2.4% | 2026-Q2 |
| UBS Group AG added | 1,048,245 | $4M | 2.3% | 2026-Q2 |
| KINGDON CAPITAL MANAGEMENT, L.L.C. | 1,039,275 | $4M | 2.2% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 979,712 | $4M | 2.1% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 883,097 | $3M | 1.9% | 2026-Q2 |
| ADAR1 Capital Management, LLC trimmed | 647,812 | $3M | 1.4% | 2026-Q2 |
| 22NW, LP | 636,364 | $3M | 1.4% | 2026-Q2 |
| NORTHERN TRUST CORP added | 616,399 | $2M | 1.3% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 581,028 | $2M | 1.3% | 2026-Q2 |
| CM Management, LLC trimmed | 575,000 | $2M | 1.2% | 2026-Q2 |
| Blue Owl Capital Holdings LP trimmed | 566,509 | $2M | 1.2% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 538,738 | $2M | 1.2% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 533,365 | $2M | 1.1% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 528,963 | $2M | 1.1% | 2026-Q2 |
| MORGAN STANLEY added | 485,092 | $2M | 1.0% | 2026-Q2 |
| Brevan Howard Capital Management LP added | 304,707 | $1M | 0.6% | 2026-Q2 |
| Triumph Capital Management new | 303,443 | $1M | 0.7% | 2026-Q2 |
| BIT Capital GmbH added | 266,000 | $1M | 0.6% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 252,232 | $994K | 0.5% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 247,404 | $975K | 0.5% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 215,973 | $851K | 0.5% | 2026-Q2 |
| Nuveen, LLC added | 209,097 | $824K | 0.5% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 200,900 | $792K | 0.4% | 2026-Q2 |
| Bank of New York Mellon Corp added | 166,927 | $658K | 0.4% | 2026-Q2 |
| LPL Financial LLC added | 111,695 | $440K | 0.2% | 2026-Q2 |
| JACOBS LEVY EQUITY MANAGEMENT, INC new | 109,841 | $433K | 0.2% | 2026-Q2 |
| Maven Securities LTD new | 100,000 | $394K | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 88,609 | $349K | 0.2% | 2026-Q2 |
| SIMPLEX TRADING, LLC added | 88,597 | $349K | 0.2% | 2026-Q2 |
| Prodigy Asset Management LLC new | 86,703 | $342K | 0.2% | 2026-Q2 |
| Daytona Street Capital LLC | 81,166 | $313K | 0.2% | 2026-Q2 |
| DEUTSCHE BANK AG\ trimmed | 76,643 | $302K | 0.2% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 74,944 | $295K | 0.2% | 2026-Q2 |
| Rockefeller Capital Management L.P. added | 72,666 | $286K | 0.2% | 2026-Q2 |
| Susquehanna Portfolio Strategies, LLC added | 71,919 | $283K | 0.2% | 2026-Q2 |
| Shay Capital LLC new | 64,000 | $252K | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 63,984 | $253K | 0.1% | 2026-Q2 |
| Invesco Ltd. added | 59,297 | $234K | 0.1% | 2026-Q2 |
| PW Nova Financial Services LLC | 58,041 | $229K | 0.1% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 51,011 | $201K | 0.1% | 2026-Q2 |
| Mariner, LLC added | 50,041 | $197K | 0.1% | 2026-Q2 |
| IEQ CAPITAL, LLC new | 48,165 | $190K | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 40,923 | $161K | 0.1% | 2026-Q2 |
| MetLife Investment Management, LLC trimmed | 40,918 | $161K | 0.1% | 2026-Q2 |
| Kera Capital Partners, Inc. added | 40,208 | $158K | 0.1% | 2026-Q2 |
| XTX Topco Ltd trimmed | 38,307 | $151K | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 36,078 | $142K | 0.1% | 2026-Q2 |
| NAVELLIER & ASSOCIATES INC new | 35,925 | $142K | 0.1% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 35,473 | $140K | 0.1% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC added | 35,413 | $140K | 0.1% | 2026-Q2 |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC new | 34,615 | $133K | 0.1% | 2026-Q2 |
| MERCER GLOBAL ADVISORS INC /ADV added | 33,499 | $132K | 0.1% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP new | 32,945 | $130K | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. new | 32,400 | $100K | 0.1% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 32,311 | $125K | 0.1% | 2026-Q2 |
| MARCO INVESTMENT MANAGEMENT LLC | 30,344 | $120K | 0.1% | 2026-Q2 |
| Retirement Planning Group, LLC new | 30,001 | $118K | 0.1% | 2026-Q2 |
| HOWARD FINANCIAL SERVICES, LTD. | 30,000 | $118K | 0.1% | 2026-Q2 |
| Cetera Investment Advisers added | 28,867 | $114K | 0.1% | 2026-Q2 |
| KESTRA PRIVATE WEALTH SERVICES, LLC added | 27,500 | $108K | 0.1% | 2026-Q2 |
| SEI INVESTMENTS CO new | 27,121 | $107K | 0.1% | 2026-Q2 |
| Cerity Partners LLC new | 26,597 | $105K | 0.1% | 2026-Q2 |
| Vanguard Global Advisers, LLC added | 24,936 | $98K | 0.1% | 2026-Q2 |
| GROUP ONE TRADING LLC trimmed | 24,725 | $97K | 0.1% | 2026-Q2 |
| Police & Firemen's Retirement System of New Jersey added | 23,508 | $93K | 0.1% | 2026-Q2 |
| Creative Planning new | 23,459 | $92K | 0.1% | 2026-Q2 |
| Scientech Research LLC new | 22,844 | $90K | 0.0% | 2026-Q2 |
| JANE STREET GROUP, LLC trimmed | 22,379 | $88K | 0.0% | 2026-Q2 |
| Private Advisor Group, LLC new | 21,760 | $86K | 0.0% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 21,451 | $85K | 0.0% | 2026-Q2 |
| Jump Financial, LLC new | 21,281 | $84K | 0.0% | 2026-Q2 |
| JONES FINANCIAL COMPANIES LLLP added | 19,952 | $75K | 0.0% | 2026-Q2 |
| INTECH INVESTMENT MANAGEMENT LLC trimmed | 19,434 | $77K | 0.0% | 2026-Q2 |
| Corient Private Wealth LP new | 18,128 | $71K | 0.0% | 2026-Q2 |
| Relyea Zuckerberg Hanson LLC added | 17,000 | $67K | 0.0% | 2026-Q2 |
| COMMONWEALTH EQUITY SERVICES, LLC new | 16,556 | $65K | 0.0% | 2026-Q2 |
| China Universal Asset Management Co., Ltd. new | 16,000 | $63K | 0.0% | 2026-Q2 |
| Baker Ellis Asset Management LLC trimmed | 16,000 | $63K | 0.0% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC added | 15,906 | $63K | 0.0% | 2026-Q2 |
| BLAIR WILLIAM & CO/IL added | 14,943 | $59K | 0.0% | 2026-Q2 |
| Independent Advisor Alliance new | 14,300 | $56K | 0.0% | 2026-Q2 |
| Revolve Wealth Partners, LLC | 14,143 | $56K | 0.0% | 2026-Q2 |
| Waverly Advisors, LLC added | 13,852 | $55K | 0.0% | 2026-Q2 |
| CAPTRUST FINANCIAL ADVISORS new | 13,667 | $54K | 0.0% | 2026-Q2 |
| NEUBERGER BERMAN GROUP LLC new | 13,246 | $52K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) added | 12,954 | $51K | 0.0% | 2026-Q2 |
| SIGNATUREFD, LLC added | 12,935 | $51K | 0.0% | 2026-Q2 |
| WINTON GROUP Ltd new | 12,900 | $51K | 0.0% | 2026-Q2 |
| Universal- Beteiligungs- und Servicegesellschaft mbH new | 12,662 | $50K | 0.0% | 2026-Q2 |
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.