EQUILLIUM INC EQ
COM · Common Stock · CUSIP 29446K106
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersLa Jolla, 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: 35.3m as of 2024-03-20, 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 ≈ $2.31. Options: 5 managers hold calls ($82.2k notional), 3 hold puts ($462).
Trends to Q1 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 31 |
| Q4 2022 | 31 |
| Q1 2023 | 29 |
| Q2 2023 | 28 |
| Q3 2023 | 26 |
| Q4 2023 | 26 |
| Q1 2024 | 29 |
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 | 19 | 9 |
| Q1 2023 | 6 | 14 |
| Q2 2023 | 9 | 10 |
| Q3 2023 | 7 | 9 |
| Q4 2023 | 7 | 11 |
| Q1 2024 | 14 | 15 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2023 | $17.0k | $4.9k | 0.29 |
| Q3 2023 | $16.5k | $4.1k | 0.25 |
| Q4 2023 | $13.8k | $0 | 0.00 |
| Q1 2024 | $82.2k | $462 | 0.01 |
Biggest buyers
| ADAR1 Capital Management, LLC | Added | +192.3k |
| ACADIAN ASSET MANAGEMENT LLC | New | +108.7k |
| Callan Capital, LLC | Added | +99.7k |
| AMERICAN CENTURY COMPANIES INC | New | +40.3k |
| JANE STREET GROUP, LLC | Added | +29.7k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +27.3k |
| PRELUDE CAPITAL MANAGEMENT, LLC | New | +15.5k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | +14.7k |
| MARSHALL WACE, LLP | New | +11.9k |
| Ground Swell Capital, LLC | New | +11.4k |
Biggest sellers
| JPMORGAN CHASE & CO | Reduced | -600.0k |
| TANG CAPITAL MANAGEMENT LLC | Sold out | -400.0k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -138.3k |
| COMMONWEALTH EQUITY SERVICES, LLC | Reduced | -75.0k |
| CITADEL ADVISORS LLC | Reduced | -62.7k |
| PRUDENTIAL FINANCIAL INC | Reduced | -34.2k |
| MILLENNIUM MANAGEMENT LLC | Sold out | -24.7k |
| Capital CS Group, LLC | Sold out | -19.0k |
| STATE STREET CORP | Reduced | -3.6k |
| Tower Research Capital LLC (TRC) | Reduced | -2.0k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $36.0k15.6k shares |
| CITADEL ADVISORS LLC | Added | $23.1k10.0k shares |
| ADAR1 Capital Management, LLC | New | $23.1k10.0k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
| SIMPLEX TRADING, LLC | New | $0400 shares |
Biggest puts
| CITADEL ADVISORS LLC | New | $462200 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
| SIMPLEX TRADING, LLC | New | $0200 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 |
|---|---|
| JANUS HENDERSON GROUP PLC 13G · institution no change · filed 2026-02-06 | 10.0% |
| ADAR1 Capital Management, LLC 13G · institution no change · filed 2026-05-15 | 9.9% |
| RA CAPITAL MANAGEMENT, L.P. 13G · passive investor new · filed 2026-03-20 | 9.9% |
| Decheng Capital Management IV (Cayman), LLC 13G · passive investor filed 2026-05-15 | 8.9% |
| Adage Capital Management, L.P. 13G · institution -2.7 pts · filed 2026-08-12 | 7.2% |
| Affinity Asset Advisors, LLC 13G · institution new · filed 2026-08-13 | 6.5% |
| Woodline Partners LP 13G · institution new · filed 2025-11-14 | 5.9% |
| Aberdeen Group plc 13G · institution new · filed 2026-05-07 | 5.3% |
Insider purchases and sales in Q1 2024
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 2022 | 0 | — | 1 | $38.0k | — |
| Q3 2022 | 0 | — | 1 | $19.8k | — |
| Q4 2022 | 0 | — | 0 | — | — |
| Q1 2023 | 0 | — | 0 | — | — |
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 0 | — | — |
None reported in Q1 2024.
Holders, Q1 2024
| Manager | Shares | Change |
|---|---|---|
| Decheng Capital LLC 1.38% of their portfolio | 4.4m $10.3m | Unchanged |
| TAKEDA PHARMACEUTICAL CO LTD 1.46% of their portfolio | 1.8m $4.2m | Unchanged |
| VANGUARD GROUP INC 0.00% of their portfolio | 841.9k $1.9m | Added +5.0k |
| Cota Capital Management, LLC 3.44% of their portfolio | 562.3k $1.3m | Unchanged |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 209.2k $483.0k | Reduced -138.3k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 199.7k $461.5k | Added +27.3k |
| Callan Capital, LLC 0.02% of their portfolio | 199.4k $460.6k | Added +99.7k |
| ADAR1 Capital Management, LLC 0.13% of their portfolio | 198.8k $459.2k | Added +192.3k |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 108.7k $249.0k | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 100.1k $231.2k | Reduced -600.0k |
| STATE STREET CORP 0.00% of their portfolio | 52.6k $121.6k | Reduced -3.6k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 41.8k $96.5k | Added +29.7k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 40.3k $93.2k | New |
| Integrated Wealth Concepts LLC 0.00% of their portfolio | 40.0k $92.4k | Unchanged |
| NORTHERN TRUST CORP 0.00% of their portfolio | 35.0k $81.0k | Reduced -106 |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 31.2k $72.1k | Reduced -34.2k |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 25.0k $58.0k | Reduced -75.0k |
| PRELUDE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 15.5k $35.8k | New |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 14.7k $33.9k | New |
| MARSHALL WACE, LLP 0.00% of their portfolio | 11.9k $27.5k | New |
| Ground Swell Capital, LLC 0.03% of their portfolio | 11.4k $26.4k | New |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 10.1k $23.4k | New |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 7.4k $17.0k | Reduced -2.0k |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 5.2k $11.0k | New |
| BlackRock Inc. 0.00% of their portfolio | 3.8k $8.8k | Reduced -12 |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 1.2k $2.7k | Added +2 |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 306 $707 | Reduced -62.7k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 29 $0 | Reduced -114 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio | 0 $0 | Unchanged |