ELEDON PHARMACEUTICALS INC ELDN
COM · Common Stock · CUSIP 28617K101
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersIrvine, CA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 13.8m as of 2023-03-29, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $2.36. Options: 3 managers hold calls ($16.8k notional), 2 hold puts ($3.3k).
Trends to Q1 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 32 |
| Q4 2022 | 28 |
| Q1 2023 | 31 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 8 | 13 |
| Q1 2023 | 11 | 8 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $48.0k | $0 | 0.00 |
| Q4 2022 | $6.0k | $0 | 0.00 |
| Q1 2023 | $16.8k | $3.3k | 0.20 |
Biggest buyers
| CITADEL ADVISORS LLC | New | +30.8k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | New | +15.0k |
| Veritable, L.P. | New | +13.0k |
| MILLENNIUM MANAGEMENT LLC | New | +12.6k |
| Tower Research Capital LLC (TRC) | Added | +4.4k |
| RENAISSANCE TECHNOLOGIES LLC | Added | +2.5k |
| Ameritas Advisory Services, LLC | New | +1.0k |
| BlackRock Inc. | Added | +798 |
| GROUP ONE TRADING LLC | New | +600 |
| SIMPLEX TRADING, LLC | New | +69 |
Biggest sellers
| Eversept Partners, LP | Sold out | -67.7k |
| SVB FINANCIAL GROUP | Reduced | -13.7k |
| TWO SIGMA INVESTMENTS, LP | Reduced | -4.1k |
| UBS Group AG | Reduced | -3.5k |
| TWO SIGMA ADVISERS, LP | Reduced | -500 |
| BANK OF AMERICA CORP /DE/ | Sold out | -14 |
| IFP Advisors, Inc | Sold out | -1 |
| MORGAN STANLEY | Sold out | -1 |
Biggest calls
| CITADEL ADVISORS LLC | New | $13.9k5.9k shares |
| GROUP ONE TRADING LLC | New | $2.8k1.2k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | New | $3.3k1.4k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BIOTECHNOLOGY VALUE FUND L P 13G · passive investor filed 2026-05-15 | 10.0% |
| BlackRock, Inc. 13G · institution +1.2 pts · filed 2026-04-27 | 5.8% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-07-31 | 5.0% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC), RA CAPITAL MANAGEMENT, L.P. (0.0%, 2026-02-17), Coastlands Capital LP (5.0%, 2026-02-13)
Insider purchases and sales in Q1 2023
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2021 | 0 | — | 0 | — | — |
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 1 | $9.0k | 0 | — | — |
| Q1 2022 | 0 | — | 0 | — | — |
| Q2 2022 | 0 | — | 0 | — | — |
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 1 | $2.6k | 0 | — | — |
| Q1 2023 | 0 | — | 0 | — | — |
None reported in Q1 2023.
Holders, Q1 2023
| Manager | Shares | Change |
|---|---|---|
| BVF INC/IL 0.20% of their portfolio | 2.3m $5.5m | Unchanged |
| Cormorant Asset Management, LP 0.19% of their portfolio | 1.2m $2.9m | Unchanged |
| VANGUARD GROUP INC 0.00% of their portfolio | 679.6k $1.6m | Unchanged |
| Woodline Partners LP 0.02% of their portfolio | 516.7k $1.2m | Unchanged |
| Ensign Peak Advisors, Inc 0.00% of their portfolio | 443.0k $1.0m | Unchanged |
| CM Management, LLC 0.66% of their portfolio | 234.8k $554.0k | Unchanged |
| Ikarian Capital, LLC 0.22% of their portfolio | 221.8k $523.5k | Unchanged |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 129.2k $304.8k | Unchanged |
| JMAC ENTERPRISES LLC 0.03% of their portfolio | 54.5k $128.7k | Unchanged |
| BlackRock Inc. 0.00% of their portfolio | 52.6k $124.1k | Added +798 |
| INGALLS & SNYDER LLC 0.01% of their portfolio | 50.8k $120.0k | Unchanged |
| STATE STREET CORP 0.00% of their portfolio | 44.7k $105.5k | Unchanged |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 32.2k $76.0k | Added +2.5k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 30.8k $72.7k | New |
| NORTHERN TRUST CORP 0.00% of their portfolio | 30.1k $70.9k | Unchanged |
| SVB FINANCIAL GROUP 0.12% of their portfolio | 26.9k $63.6k | Reduced -13.7k |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 25.1k $59.2k | Reduced -500 |
| BOOTHBAY FUND MANAGEMENT, LLC 0.00% of their portfolio | 22.1k $52.0k | Unchanged |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 18.0k $42.4k | Unchanged |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 17.6k $41.5k | Reduced -4.1k |
| MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio | 16.7k $39.0k | Unchanged |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 15.0k $35.4k | New |
| Veritable, L.P. 0.00% of their portfolio | 13.0k $30.7k | New |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 12.6k $30.0k | New |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 6.3k $15.0k | Added +4.4k |
| Ameritas Advisory Services, LLC 0.00% of their portfolio | 1.0k $2.3k | New |
| GROUP ONE TRADING LLC 0.00% of their portfolio | 600 $1.4k | New |
| UBS Group AG 0.00% of their portfolio | 456 $1.1k | Reduced -3.5k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 86 $203 | Added +2 |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 69 $0 | New |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio | 0 $0 | Unchanged |