SELLAS LIFE SCIENCES GROUP I SLS
COM NEW · Common Stock · CUSIP 81642T209
Company in San Ramon, United States
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersNew York, NY
- Founded2006
- Websitegalenabiopharma.com
- 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: 64.3m as of 2024-08-12, 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 ≈ $1.19. Options: 9 managers hold calls ($7.4m notional), 4 hold puts ($71.0k).
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 29 |
| Q4 2022 | 30 |
| Q1 2023 | 23 |
| Q2 2023 | 26 |
| Q3 2023 | 29 |
| Q4 2023 | 32 |
| Q1 2024 | 31 |
| Q2 2024 | 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 | 17 | 12 |
| Q1 2023 | 10 | 12 |
| Q2 2023 | 14 | 6 |
| Q3 2023 | 14 | 8 |
| Q4 2023 | 21 | 8 |
| Q1 2024 | 15 | 14 |
| Q2 2024 | 21 | 11 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $3.0m | $33.8k | 0.01 |
| Q4 2023 | $2.6m | $50.2k | 0.02 |
| Q1 2024 | $3.7m | $26.9k | 0.01 |
| Q2 2024 | $7.4m | $71.0k | 0.01 |
Biggest buyers
| VANGUARD GROUP INC | Added | +273.1k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +243.9k |
| Diametric Capital, LP | New | +153.0k |
| BlackRock Inc. | Added | +152.2k |
| MILLENNIUM MANAGEMENT LLC | New | +150.4k |
| PRELUDE CAPITAL MANAGEMENT, LLC | New | +55.7k |
| LPL Financial LLC | New | +51.9k |
| STATE STREET CORP | Added | +36.9k |
| RENAISSANCE TECHNOLOGIES LLC | New | +32.4k |
| JANE STREET GROUP, LLC | New | +28.0k |
Biggest sellers
| Anson Funds Management LP | Sold out | -4.8m |
| Prosperity Financial Group, Inc. | Sold out | -25.4k |
| CANTOR FITZGERALD, L. P. | Sold out | -24.8k |
| CITADEL ADVISORS LLC | Sold out | -19.7k |
| XTX Topco Ltd | Sold out | -17.4k |
| JPMORGAN CHASE & CO | Sold out | -12.2k |
| Brooklyn FI, LLC | Sold out | -11.2k |
| Tower Research Capital LLC (TRC) | Reduced | -7.1k |
| MORGAN STANLEY | Reduced | -963 |
| WELLS FARGO & COMPANY/MN | Sold out | -301 |
Biggest calls
| GROUP ONE TRADING LLC | Added | $3.0m2.5m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $2.0m1.6m shares |
| Alyeska Investment Group, L.P. | Added | $1.8m1.5m shares |
| SIMPLEX TRADING, LLC | Reduced | $509.0k428.2k shares |
| CITADEL ADVISORS LLC | Added | $176.4k148.2k shares |
| Belvedere Trading LLC | New | $15.1k12.7k shares |
| JANE STREET GROUP, LLC | Unchanged | $11.9k10.0k shares |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | New | $1.2k1.0k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $53.1k44.6k shares |
| CITADEL ADVISORS LLC | Added | $13.9k11.7k shares |
| SIMPLEX TRADING, LLC | Added | $4.0k3.4k 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 |
|---|---|
| BlackRock, Inc. 13G · institution +1.1 pts · filed 2026-10-27 | 7.9% |
| STATE STREET CORP 13G · institution new · filed 2026-08-07 | 7.0% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-07-31 | 5.2% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC), Anson Funds Management LP (4.9%, 2026-02-17), HIGHBRIDGE CAPITAL MANAGEMENT LLC (3.7%, 2026-01-30)
Insider purchases and sales in Q2 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 |
|---|---|---|---|---|---|
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 0 | — | 3 | $25.5k | — |
| Q1 2023 | 0 | — | 0 | — | — |
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 0 | — | — |
None reported in Q2 2024.
Holders, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.00% of their portfolio | 1.8m $2.1m | Added +273.1k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 517.0k $615.3k | Added +243.9k |
| BlackRock Inc. 0.00% of their portfolio | 430.4k $512.1k | Added +152.2k |
| Opus Capital Group, LLC 0.04% of their portfolio | 221.0k $263.0k | Added +20.4k |
| Equitable Holdings, Inc. 0.00% of their portfolio | 210.0k $249.9k | Added +10.0k |
| Diametric Capital, LP 0.10% of their portfolio | 153.0k $182.1k | New |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 150.4k $179.0k | New |
| STATE STREET CORP 0.00% of their portfolio | 134.0k $159.5k | Added +36.9k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 100.8k $120.0k | Added +12.1k |
| Virtu Financial LLC 0.01% of their portfolio | 63.8k $76.0k | Added +24.4k |
| PRELUDE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 55.7k $66.3k | New |
| LPL Financial LLC 0.00% of their portfolio | 51.9k $61.8k | New |
| Mariner, LLC 0.00% of their portfolio | 44.9k $53.5k | Added +19.7k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 32.4k $38.6k | New |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 28.0k $33.3k | New |
| INDEPENDENT FINANCIAL GROUP, LLC 0.00% of their portfolio | 23.2k $27.7k | Added +3.0k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 16.2k $19.3k | Unchanged |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 15.6k $19.0k | Added +1.5k |
| WEDBUSH SECURITIES INC 0.00% of their portfolio | 15.0k $18.0k | New |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 13.6k $16.2k | Reduced -7.1k |
| Nemes Rush Group LLC 0.00% of their portfolio | 10.0k $11.9k | Unchanged |
| MORGAN STANLEY 0.00% of their portfolio | 3.3k $3.9k | Reduced -963 |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 1.7k $2.0k | Unchanged |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 669 $1.0k | Added +446 |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 577 $687 | New |
| JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio | 374 $445 | New |
| Allworth Financial LP 0.00% of their portfolio | 150 $167 | Unchanged |
| JANICZEK WEALTH MANAGEMENT, LLC 0.00% of their portfolio | 11 $14 | Unchanged |
| Parkside Financial Bank & Trust 0.00% of their portfolio | 2 $3 | Unchanged |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 2 $2 | Unchanged |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio | 0 $0 | Unchanged |